Soft and clean double-water waterway board and clean water dispenser

Abstract

The embodiment of the utility model provides a soft and clean double-water waterway board and a clean water dispenser, the clean water dispenser comprises a soft water system and a clean water system, and the soft and clean double-water waterway board integrates a front clean water waterway, a membrane clean water waterway and a rear clean water waterway so as to be communicated with a multi-stage filter of the clean water dispenser. Soft water passes through the front purification water path, the membrane purification water path and the rear purification water path to generate pure water, the pure water is supplied to a user, the front purification water path is further used for being communicated with raw water and guiding the raw water into the front filter element to complete front filtration so as to form purified raw water, and the purified raw water can be mixed with the pure water in a mineral system to form mineral water. According to the water purifying and drinking machine, the dispersedly-arranged water purifying paths in the related technology are integrated, the occupied volume of the pipeline structure is reduced, the internal structure of the equipment is simplified, a continuous and complete assembly area is formed in the water purifying and drinking machine, internal parts are allowed to form more compact space arrangement, and the overall size of the water purifying and drinking machine is reduced.

Description

Technical Field

[0001] This application relates to the field of water purification technology, and in particular to a soft and clean dual-water circuit board and a water purifier. Background Technology

[0002] In related technologies, drinking water equipment generally integrates water softening and water purification functions, resulting in complex pipeline structures and large space occupation, making the drinking water equipment bulky and inconvenient for installation in kitchens and bathrooms. Utility Model Content

[0003] This application provides a soft and clean dual-water circuit board and a water purifier, which can solve the problem of large overall size caused by complex internal piping structure of drinking water equipment.

[0004] This application embodiment provides a dual-water circuit board for a water purifier and a water softening system. The dual-water circuit board is used in a water purifier / dispenser, which includes a water softening system and a water purification system. The dual-water circuit board has the following features:

[0005] The pre-purification water path is connected to the pre-filter of the water purification system. The pre-purification water path is also used to connect to the soft water system to guide the soft water output by the soft water system into the pre-filter to complete the pre-filtration and form pre-filtered water. The pre-purification water path is also used to connect to the raw water source to guide the raw water into the pre-filter to complete the pre-filtration and form purified raw water.

[0006] The membrane purification water path is connected to the pre-filter and reverse osmosis filter of the water purification system, respectively. The membrane purification water path guides the pre-filtered water into the reverse osmosis filter to complete membrane filtration, thereby converting the pre-filtered water into membrane-filtered water; and

[0007] The post-purification water path is connected to the reverse osmosis filter element and the post-filter element of the water purification system, respectively. The post-purification water path is used to guide the membrane filtered water into the post-filter element to complete the post-filtration, so as to convert the membrane filtered water into pure water.

[0008] The post-purification water path and the pre-purification water path are also respectively used to connect with the mineral water system so that the purified raw water and the pure water can be mixed in the mineral water system to form mineral water.

[0009] In some embodiments, the characteristic is that,

[0010] The pre-purification water circuit includes a first water supply channel, which includes a raw water inlet, a soft water inlet, and a pre-filter water supply interface.

[0011] The pre-filter water supply interface is used to connect with the pre-filter of the water purifier;

[0012] The soft water inlet is used to connect with the soft water system of the water purifier, so as to guide the soft water of the soft water system into the pre-filter through the first water delivery channel;

[0013] The raw water inlet is used to connect with raw water to guide the raw water into the pre-filter through the first water delivery channel.

[0014] In some embodiments, the membrane purification water path includes a second water delivery channel, a third water delivery channel, and a fourth water delivery channel;

[0015] The second water supply channel is used to connect to the pre-filter cartridge and the pre-control valve of the water purification system respectively, so as to guide the pre-filtered water formed by the pre-filter cartridge into the pre-control valve;

[0016] The third water supply channel is used to connect to the pre-control valve and the booster pump of the water purification system respectively, so as to guide the pre-filtered water flowing out of the pre-control valve into the booster pump.

[0017] The fourth water supply channel is used to connect to the booster pump and the reverse osmosis filter element respectively, so as to guide the pre-filtered water flowing out of the booster pump into the reverse osmosis filter element.

[0018] In some embodiments, the second water conveying channel, the third water conveying channel, and the fourth water conveying channel are arranged at intervals;

[0019] The second water supply channel has a pre-filter return water interface for communicating with the outlet of the pre-filter cartridge, and a pre-control valve inlet interface for communicating with the pre-control valve.

[0020] The third water supply channel includes a pre-control valve outlet for communicating with the pre-control valve, and a booster pump inlet for communicating with the booster pump inlet.

[0021] The fourth water supply channel has a booster pump outlet for connecting to the outlet of the booster pump, and a membrane filtration water supply interface for connecting to the reverse osmosis filter element.

[0022] In some embodiments, the fourth water supply channel further includes a raw water quality detection interface disposed between the booster pump outlet and the membrane filter supply interface. The raw water quality detection interface is used to communicate with a raw water quality detection device to detect the total dissolved solids content in the pre-filtered water flowing through the fourth water supply channel.

[0023] In some embodiments, the water circuit board further includes a fifth water conveying channel and a sixth water conveying channel arranged at intervals, wherein the fifth water conveying channel includes a first water conveying section;

[0024] The membrane purification water circuit also includes a first water conveying section and a sixth water conveying channel;

[0025] The first water conveying section has a membrane filtration return water interface for communicating with the reverse osmosis filter element, and a membrane filtration control valve inlet interface for communicating with the membrane filtration control valve of the water purification system, so that the membrane filtration water formed by the reverse osmosis filter element is guided by the fifth water conveying channel into the membrane filtration control valve of the water purification system.

[0026] The sixth water supply channel has a membrane filter control valve outlet for communicating with the membrane filter control valve, and a booster pump inlet for communicating with the booster pump, so that the membrane filtered water directed out of the membrane filter control valve flows back into the booster pump and then circulates to the fourth water supply channel for repeated membrane filtration.

[0027] In some embodiments, the water circuit board further has a fifth water conveying channel, which includes a second water conveying section;

[0028] The post-purification water path includes a second water supply section, which has a membrane filtration return water interface for communicating with the reverse osmosis filter element and a post-filtration water supply interface for communicating with the post-filter element, so that at least a portion of the membrane filtration water formed by the reverse osmosis filter element enters the post-filter element through the fifth water supply channel.

[0029] In some embodiments, the soft and clean dual-water circuit board also has a pure water supply circuit, which is connected to the post-filter of the water purification system to receive the pure water output by the post-filter.

[0030] In some embodiments, the pure water supply circuit includes a seventh water supply channel, an eighth water supply channel, and an eleventh water supply channel arranged at intervals;

[0031] The seventh water supply channel is connected to the post-filter and the pure water control valve of the water purification system, respectively, so as to guide the pure water formed by the post-filter into the pure water control valve through the seventh water supply channel;

[0032] The eighth water supply channel is connected to the pure water control valve and is used to receive pure water supplied by the pure water control valve.

[0033] The eleventh water supply channel is used to connect with the outlet end of the pure water supply valve, and the eighth water supply channel is used to connect with the inlet end of the pure water supply valve. The pure water supply valve guides the pure water formed by the post-filter cartridge into the eleventh water supply channel through the eighth water supply channel. The eleventh water supply channel is also used to connect with the mineral water system.

[0034] In some embodiments, the eighth water supply channel includes multiple pure water supply interfaces;

[0035] One of the pure water supply interfaces is used to connect to a pure water outlet valve to supply pure water to the user, and another pure water supply interface is used to connect to the pure water supply valve to supply pure water to the eleventh water supply channel; and / or,

[0036] One of the pure water supply interfaces is used to connect to the pipeline machine to supply pure water to the pipeline machine.

[0037] In some embodiments, the eighth water supply channel includes a pure water control valve outlet, a pure water supply interface, and a pure water quality detection interface located between the pure water control valve outlet and the pure water supply interface.

[0038] The outlet port of the pure water control valve is used to connect with the pure water control valve to receive pure water supplied by the pure water control valve.

[0039] The pure water supply interface is used to supply pure water to the water-requiring component;

[0040] The pure water quality testing interface is used to connect with a pure water quality testing device to detect the total dissolved solids content in the pure water flowing through the eighth water supply channel.

[0041] In some embodiments, the membrane purification water path further includes a ninth water conveying channel, which has a membrane filtration wastewater inlet for communicating with the reverse osmosis filter element and a membrane filtration wastewater outlet for communicating with the wastewater plug, so as to guide the wastewater generated by the reverse osmosis filter element to be discharged to the wastewater plug through the ninth water conveying channel.

[0042] In some embodiments, the soft and clean dual-water circuit board further includes a purified raw water supply circuit, which includes a tenth water delivery channel. The tenth water delivery channel includes a domestic water solenoid valve return interface and a purified raw water supply interface. The domestic water solenoid valve return interface is used to connect with the outlet of the domestic water solenoid valve. The outlet of the pre-filter is also used to connect with the inlet of the domestic water solenoid valve. The tenth water delivery channel is used to receive the purified raw water guided by the domestic water solenoid valve. The purified raw water supply interface is used to connect with the mineral water system to guide the purified raw water from the tenth water delivery channel to the mineral water system.

[0043] Secondly, embodiments of this application provide a water purifier, comprising:

[0044] A water softening system is used to soften supplied raw water to create soft water; and

[0045] The water purification system includes a filtration system and the aforementioned soft and clean dual-water circuit board. The filtration system includes a pre-filter, a reverse osmosis filter, and a post-filter connected in sequence. The soft and clean dual-water circuit board is connected to the soft water system and the filtration system respectively to guide the soft water formed by the soft water system.

[0046] In some embodiments, the soft and clean dual-water circuit board also has a pure water supply circuit connected to the post-purification water circuit, and a purified raw water supply circuit connected to the pre-purification water circuit.

[0047] The mineral water system is used to receive pure water output from the pure water supply circuit and purified raw water output from the mineral water system, and to mix the pure water and the purified raw water into mineral water.

[0048] The water circuit board and water purifier provided in this application integrate a pre-purification water circuit, a membrane purification water circuit, and a post-purification water circuit, thereby connecting the multi-stage filtration components of the water purifier. The soft water generated by the soft water system sequentially passes through the pre-filter, the reverse osmosis filter, and the post-filter to form pure water, which is then supplied to the user. In addition, the pre-purification water circuit is also used to connect with the raw water, guiding the raw water into the pre-filter to complete pre-filtration and form purified raw water. The purified raw water can also be mixed with pure water in the mineral system to form mineral water. By integrating the dispersed purification water circuits in related technologies into one unit, this application reduces the volume occupied by the pipeline structure, simplifies the internal structure of the equipment, and forms a continuous and complete assembly area within the water purifier, allowing for a more compact spatial arrangement of its internal components and reducing the overall size of the water purifier. Attached Figure Description

[0049] 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.

[0050] Figure 1 This is an exploded view of a water purifier according to an embodiment of this application;

[0051] Figure 2This is a schematic diagram of the water circuit structure of a water purifier according to an embodiment of this application;

[0052] Figure 3 This is a schematic diagram of the structure of a water channel board according to an embodiment of this application;

[0053] Figure 4 This is a schematic diagram of the water channel structure of a water channel board according to an embodiment of this application;

[0054] Figure 5 This is a cross-sectional structural schematic diagram of a water channel board according to an embodiment of this application;

[0055] Figure 6 This is another cross-sectional structural schematic diagram of a water circuit board according to an embodiment of this application.

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

[0057] 001. Water purifier;

[0058] 002. Soft water system;

[0059] 003. Water purification system; 50. Filtration system; 501. Pre-filter; 502. Reverse osmosis filter; 503. Post-filter; 60. Water circuit board; 610. Pre-filter water circuit; 601. First water supply channel; 601A. Soft water inlet; 601B. Pre-filter water supply interface; 620. Membrane purification water circuit; 602. Second water supply channel; 602A. Pre-filter return water interface; 602B. Pre-filter control... 603, Third Water Supply Channel; 603A, Pre-control Valve Outlet; 603B, Booster Pump Inlet; 604, Fourth Water Supply Channel; 604A, Booster Pump Outlet; 604B, Membrane Filtration Water Supply Channel; 604C, Raw Water Quality Testing Channel; 609, Ninth Water Supply Channel; 609A, Membrane Filtration Wastewater Inlet; 609B, Membrane Filtration Wastewater Outlet; 630, Post-control Valve Inlet; Purified water circuit; 605, Fifth water supply channel; 6051, First water supply section; 6052, Second water supply section; 605A, Membrane filtration return water interface; 605B, Membrane filtration control valve; 606, Sixth water supply channel; 606A, Membrane filtration control valve outlet interface; 640, Pure water supply circuit; 607, Seventh water supply channel; 607A, Post-filtration return water interface; 607B, Pure water control valve inlet interface; 608 Eighth water supply channel; 608A, pure water control valve outlet interface; 608B, pure water supply interface; 608C, pure water quality testing interface; 606, Sixth water supply channel; 606A, membrane filter control valve outlet interface; 606B, booster pump inlet interface; 650, purified raw water supply circuit; 6010, Tenth water supply channel; 6010A, domestic water solenoid valve return interface; 6020, Eleventh water supply channel;

[0060] 0031. Membrane filtration control valve; 0032. Pre-control valve; 0033. Pure water control valve; 0034. Pure water quality testing device; 5021. Wastewater plug; 040. Raw water quality testing device; 70. Booster pump; 006. Pipeline machine.

[0061] 0071. Pure water supply valve; 0072. Domestic water solenoid valve; Detailed Implementation

[0062] 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.

[0063] In related technologies, drinking water equipment generally integrates water softening and water purification functions. The inventors discovered that commercially available drinking water equipment only has a primary filtration function, that is, it softens the raw water and purifies it through a pre-filter. The resulting filtered water is not directly drinkable, and the piping structure inside the equipment is complex and space-consuming, resulting in a large overall size that is inconvenient for installation in kitchens and bathrooms. Based on this, this application provides a water circuit board and a water purifier.

[0064] Please see Figure 1 A dual-water circuit board 60 for softening and purifying water is provided, which is used in a water purifier 001. The water purifier 001 includes a softening system 002 and a purifying system 003. The softening system 002 is used to soften the supplied raw water to form soft water. For example, the softening system 002 is connected to the household water system, thereby softening the tap water entering the water purifier 001 from the household water system to form soft water. The purifying system 003 has a filtration system 50, which is used to perform multi-stage purification on the soft water produced by the softening system 002 to form pure water that can be directly drunk.

[0065] Please see Figures 1-2In this embodiment, the filtration systems of the soft water system 002 and the water purification system 003 are connected by a dual-water circuit board 60. The dual-water circuit board 60 has a pre-purification water circuit 610, a membrane purification water circuit 620, and a post-purification water circuit 630, thereby connecting the multi-stage filtration components within the filtration system 50 of the water purifier 001. The pre-purification water circuit 610 is connected to the pre-filter cartridges 501 of both the soft water system 002 and the water purification system 003. The pre-purification water circuit 610 guides the soft water output from the soft water system 002 into the pre-filter cartridge 501 to complete pre-filtration, forming pre-filtered water. The membrane purification water circuit 620 is connected to the pre-filter cartridge 501 and the reverse osmosis filter cartridge 502 of the water purification system 003. The membrane purification water circuit 620 guides the pre-filtered water into the reverse osmosis filter cartridge 502 to complete membrane filtration, converting the pre-filtered water into membrane-filtered water. The post-purification water path 630 is connected to the reverse osmosis filter element 502 and the post-filter element 503 of the water purification system 003 respectively. The post-purification water path 630 is used to guide the membrane filtered water into the post-filter element 503 to complete the post-filtration, so as to convert the membrane filtered water into pure water.

[0066] The pre-filter 501 effectively removes large particulate pollutants such as suspended solids, silt, and rust from the water through physical filtration. The reverse osmosis filter 502 (also known as "reverse osmosis filter 502") removes suspended particles, colloids, organic matter, bacteria, viruses, and other microorganisms and pollutants from the water, improving water purity and quality. The post-filter 503 is typically made of activated carbon and adsorbs impurities remaining in the water after filtration by the previous filters, such as organic matter and residual chlorine. The pre-filter 501, reverse osmosis filter 502, and post-filter 503 were all purchased from the market; their specific structures and functions will not be described in further detail here.

[0067] This application integrates the dispersed purification water circuits in related technologies into one unit through the soft and clean dual water circuit board 60, thereby reducing the volume occupied by the pipeline structure and simplifying the internal structure of the equipment. The setting of the soft and clean dual water circuit board 60 avoids the pipeline from cutting off the internal space of the water purifier 001, thereby forming a continuous and complete assembly area inside the water purifier 001, allowing the internal components of the water purifier 001 to form a more compact spatial arrangement, which helps to reduce the overall size of the water purifier 001.

[0068] Furthermore, in this embodiment, the pre-purification water path 610 can also be connected to the raw water to guide the raw water into the pre-filter 501 to complete pre-filtration and form purified raw water. Since the raw water is generally tap water flowing from the household water system, some larger impurities in the purified raw water can be filtered out after passing through the pre-filter 501. In addition, the purified raw water also contains a certain amount of minerals. Therefore, the purified raw water and some pure water can be mixed in the mineral water system to form mineral water.

[0069] That is, the water circuit of the soft and clean dual water circuit board 60 in this embodiment can meet the needs of generating mineral water and pure water, with more functions, and can meet the user's needs for different water qualities.

[0070] In some embodiments, the soft and clean dual-water circuit board 60 has two mounting surfaces arranged opposite each other along the thickness direction X of the soft and clean dual-water circuit board 60. At least one mounting surface is provided with a mounting interface, and a water supply channel is formed within the board body between the two mounting surfaces. By embedding the water supply channel, the external piping layout is reduced, making the appearance of the soft and clean dual-water circuit board 60 relatively flat and facilitating the installation of other components. The mounting interface is connected to the water supply channel and is used to install external components of the soft and clean dual-water circuit board 60.

[0071] In some embodiments, the pre-purification water circuit 610 includes a first water delivery channel 601, which includes a soft water inlet 601A and a pre-filter water supply interface 601B. The soft water inlet 601A is connected to the soft water system 002 of the water purifier 001 to receive the soft water processed by the soft water system 002. The pre-filter water supply interface 601B is connected to the pre-filter cartridge 501 of the water purifier 001 to guide the soft water from the soft water system 002 into the pre-filter cartridge 501 via the first water delivery channel 601. In a specific implementation, the soft water inlet 601A can be connected to the soft water outlet pipe of the soft water valve, and the pre-filter water supply interface 601B can be connected to the inlet of the pre-filter cartridge 501. The soft water inlet 601A and the pre-filter water supply interface 601B are connected by an integrated flow channel, replacing the multi-section, bent pipes in traditional designs, thereby reducing potential leakage points.

[0072] Optionally, the first water supply channel 601 also includes a raw water inlet interface for supplying raw water to the first water supply channel 601. The raw water inlet interface can be the same as the soft water inlet interface 601A, that is, the soft water inlet interface 601A can be connected to a three-way connector. The other three-way connector has one pipe interface connected to the soft water inlet interface 601A, and the inlets of the other two pipes are connected to the soft water system 002 and the raw water circuit, respectively. It should also be understood that control valves are provided in both the soft water system 002 and the raw water circuit. When the control valve of the soft water system 002 is open, the softened water from the soft water system 002 enters the first water supply channel 601. When the control valve in the raw water circuit is open, the raw water enters the first water supply channel 601 and is filtered by the pre-filter 501 to generate purified raw water. The control valve in the soft water system 002 and the control valve in the raw water circuit can be selectively activated.

[0073] In another embodiment, the raw water inlet interface can be a different interface from the soft water inlet interface 601A of the dual water circuit board 60 for both soft and clean water. The soft water inlet interface 601A is connected to the soft water system 002, and the raw water inlet interface is connected to the raw water circuit. Of course, both the soft water system 002 and the raw water circuit are equipped with control valves, and one of the control valves in the soft water system 002 and the control valve in the raw water circuit can be selectively connected.

[0074] It should be noted that the water purification system 003 also includes a pre-control valve 0032 and a booster pump 70 installed on the soft and clean dual-water circuit board 60. Both the pre-control valve 0032 and the booster pump 70 are located upstream of the reverse osmosis filter element 502. The pre-control valve 0032 adjusts its opening in real time to control the inlet water flow of the reverse osmosis filter element 502, and the booster pump 70 increases the inlet water pressure of the reverse osmosis filter element 502, providing driving force for membrane separation. The pre-control valve 0032 can be a solenoid valve. In this embodiment, the membrane purification water circuit 620 is provided with three water delivery channels, allowing the pre-filtered water to flow sequentially through the pre-control valve 0032, the booster pump 70, and the reverse osmosis filter element 502.

[0075] Please continue reading. Figure 3-4 The membrane purification water circuit 620 includes a second water supply channel 602, a third water supply channel 603, and a fourth water supply channel 604. The second water supply channel 602 is connected to the pre-filter cartridge 501 and the pre-control valve 0032 of the water purification system 003, respectively. The second water supply channel 602 receives the pre-filtered water generated by the pre-filter cartridge 501 and delivers the pre-filtered water to the pre-control valve 0032. The third water supply channel 603 is connected to the pre-control valve 0032 and the booster pump 70 of the water purification system 003, respectively. The third water supply channel 603 guides the pre-filtered water flowing out of the pre-control valve 0032 into the booster pump 70. The booster pump 70 can output high-pressure water. The fourth water supply channel 604 is connected to the booster pump 70 and the reverse osmosis filter cartridge 502, respectively. The fourth water supply channel 604 directionally delivers the high-pressure pre-filtered water flowing out of the booster pump 70 to the reverse osmosis filter cartridge 502.

[0076] Furthermore, the second water supply channel 602, the third water supply channel 603, and the fourth water supply channel 604 are arranged at intervals. The second water supply channel 602 has a pre-filter return water interface 602A and a water inlet interface 602B. The pre-filter return water interface 602A is used to connect with the outlet of the pre-filter element 501 and can receive the pre-filtered water formed by the pre-filter element 501. The pre-control valve water inlet interface 602B is used to connect with the pre-control valve 0032 and can guide the pre-filtered water in the second water supply channel 602 into the pre-control valve 0032. The third water supply channel 603 is equipped with a pre-control valve outlet port 603A and a booster pump inlet port 603B. The pre-control valve outlet port 603A is used to connect with the pre-control valve 0032 and can receive the pre-filtered water flowing out of the pre-control valve 0032. The booster pump inlet port 603B is used to connect with the inlet of the booster pump 70 to guide the pre-filtered water in the third water supply channel 603 to the booster pump 70. The fourth water supply channel 604 has a booster pump outlet port 604A and a membrane filtration water supply port 604B. The booster pump outlet port 604A is used to connect with the outlet of the booster pump 70 and can receive the high-pressure pre-filtered water flowing out of the booster pump 70. The membrane filtration water supply port 604B is used to connect with the reverse osmosis filter element 502 and can guide the pre-filtered water in the fourth water supply channel 604 into the reverse osmosis filter element 502. Thus, through the coordinated control of the three water supply channels and the pre-control valve 0032 and booster pump 70, stable and high-pressure pre-filtered water is provided to the reverse osmosis filter element 502.

[0077] In this embodiment, the water purification system 003 further includes a raw water quality detection element 040, which is used to detect the quality of the fluid flowing towards the reverse osmosis filter element 502. Correspondingly, the fourth water supply channel 604 also includes a raw water quality detection interface 604C, which is located between the booster pump outlet interface 604A and the membrane filtration supply interface 604B. The raw water quality detection interface 604C is used to communicate with the raw water quality detection element 040 to detect the total dissolved solids content in the pre-filtered water flowing through the fourth water supply channel 604. The raw water quality detection element 040 can detect the quality of the pre-filtered water entering the reverse osmosis filter element 502. In some embodiments, the water purifier 001 coordinates the control speed of the booster pump 70 based on the detection result of the raw water quality detection element 040 and the water flow temperature in the fourth water supply channel 604 to stabilize the water flow rate of the water purifier 001. Optionally, the raw water quality testing component 040 can be a TDS (Total Dissolved Solids) sensor. The TDS sensor is installed at the raw water quality testing interface 604C and is installed at an angle to the flow channel axis in the fourth water supply channel 604 to ensure that the pre-filtered water in the fourth water supply channel 604 fully contacts the detection surface of the TDS sensor.

[0078] In this embodiment, a membrane filtration circulation water path is formed within the membrane purification water path 620. By reintroducing a portion of the membrane-filtered water into the inlet of the booster pump 70 for secondary filtration, the purified water / wastewater ratio is reduced, and the circulating water continuously washes the membrane surface, suppressing concentration polarization. A membrane filtration control valve 0031 is installed on the membrane filtration circulation water path. The membrane filtration control valve 0031 is a one-way valve that unidirectionally delivers a portion of the membrane-filtered water to the inlet of the booster pump 70. The soft and clean dual-water path plate 60 also includes a fifth water delivery channel 605 and a sixth water delivery channel 606 spaced apart. The fifth water delivery channel 605 includes a first water delivery section 6051. The first water delivery section 6051, the sixth water delivery channel 606, and the fourth water delivery channel 604 together form the membrane filtration circulation water path. The first water conveying section 6051 has a membrane filtration return water interface 605A and a membrane filtration control valve 0031 inlet interface 605B. The membrane filtration return water interface 605A is used to connect with the reverse osmosis filter element 502, and the membrane filtration control valve inlet interface 605B is used to connect with the membrane filtration control valve 0031 of the water purification system 003. The membrane filtered water formed by the reverse osmosis filter element 502 is guided by the first water conveying section 6051 into the membrane filtration control valve 0031 of the water purification system. The sixth water conveying channel 606 has a membrane filtration control valve outlet interface 606A and a booster pump inlet interface 606B. The membrane filtration control valve outlet interface 606A is used to connect with the membrane filtration control valve 0031, and the booster pump 70 inlet interface 606B is used to connect with the booster pump 70. The membrane filtered water flowing out of the membrane filtration control valve 0031 is guided by the sixth water conveying channel 606 back into the booster pump 70, and then circulated to the fourth water conveying channel 604 for repeated membrane filtration.

[0079] In this embodiment, the membrane-filtered water formed by membrane filtration is guided to the post-filter cartridge 503 via the post-purification water path 603 for post-filtration. The fifth water supply channel 605 also includes a second water supply section 6052, which is connected to the first water supply section 6051. The post-purification water path 630 includes the second water supply section 6052 of the fifth water supply channel 605. The second water supply section 6052 has a membrane filtration return water interface 605A and a post-filtration water supply interface 605C. The membrane filtration return water interface 605A is used to connect with the outlet of the reverse osmosis filter cartridge 502 to receive the membrane-filtered water formed by the reverse osmosis filter cartridge 502. The post-filtration water supply interface 605C is used to connect with the inlet of the post-filter cartridge 503 to guide the membrane-filtered water in the fifth water supply channel 605 into the post-filter cartridge 503. In this way, the fifth water supply channel 605 can guide at least a portion of the membrane-filtered water formed by the reverse osmosis filter cartridge 502 into the post-filter cartridge 503.

[0080] Optionally, the membrane filter control valve inlet port 605B is located between the membrane filter return port 605A and the post-filter supply port 605C, and the membrane filter control valve inlet port 605B is located on the second water delivery section 6052. In this case, a portion of the second water delivery section 6052 forms the first water delivery section 6051. In some other embodiments, the membrane filter control valve inlet port 605B may also be located outside the second water delivery section 6052, and the membrane filter return port 605A is a shared interface between the first water delivery section 6051 and the second water delivery section 6052.

[0081] In this embodiment, the soft and clean dual-water circuit board 60 also includes a pure water supply circuit 640, which is connected to the post-filter 503 of the water purification system 003 to receive pure water output from the post-filter 503. The pure water supply circuit 640 can supply pure water to other pure water-using components within the water purifier 001, for example, it can provide pure water to the hot water system 004. The pure water supply circuit 640 can also supply pure water to pure water-using components outside the water purifier 001, for example, it can supply water to the water dispenser 006 or to users.

[0082] The water purification system 003 also includes a pure water control valve 0033 installed on the soft and clean water circuit board 60 and located on the pure water supply circuit 640. The pure water control valve 0033 is used to control the pure water supply flow rate in the pure water supply circuit 640. Optionally, the pure water control valve 0033 can be a one-way valve. The pure water supply circuit 640 includes a seventh water supply channel 607, an eighth water supply channel 608, and an eleventh water supply channel arranged at intervals. The seventh water supply channel 607 is connected to the post-filter cartridge 503 and the pure water control valve 0033 of the water purification system 003, respectively. The seventh water supply channel 607 has a post-filter return water interface 607A and a pure water control valve inlet interface 607B. The post-filter return water interface 607A is used to connect to the outlet of the post-filter cartridge 503, and the pure water control valve inlet interface 607B is used to connect to the pure water control valve 0033, so as to guide the pure water formed by the post-filter cartridge 503 into the pure water control valve 0033 through the seventh water supply channel 607. The eighth water supply channel 608 is connected to the pure water control valve 0033 and is used to receive pure water supplied by the pure water control valve 0033. The eighth water supply channel 608 has a pure water control valve outlet port 608A and a pure water supply port 608B. The pure water control valve outlet port 608A is used to connect to the pure water control valve 0033 to receive pure water supplied by the pure water control valve 0033. The pure water supply port 608B is used to connect to the pure water component inside or outside the water purifier 001 to supply pure water.

[0083] The eleventh water supply channel 6020 is used to connect with the outlet end of the pure water supply valve 0071, and the eighth water supply channel 608 is used to connect with the inlet end of the pure water supply valve 0071. The pure water formed by the guide post-filter 503 of the pure water supply valve 0071 enters the eleventh water supply channel 6020 through the eighth water supply channel 608. The eleventh water supply channel 6020 is also used to connect with the mineral water system.

[0084] In some embodiments, the pre-filter 501 and post-filter 503 in the water purifier 001 are integrated, and the pre-filter water supply interface 601B, pre-filter water return interface 602A, post-filter water supply interface 605C, and post-filter water return interface 607A on the soft and clean dual water circuit board 60 are used to connect the soft and clean dual water circuit board 60 and the pre-filter 501 and post-filter 503.

[0085] Please see Figure 5-6 In some embodiments, the eighth water supply channel 608 includes multiple pure water supply interfaces 608B, wherein one pure water supply interface 608B can be connected to a pure water outlet valve to supply pure water to the user, and one pure water supply interface 608B can be connected to a pure water supply valve 0071 to supply pure water to the eleventh water supply channel 6020, and then supply pure water to the mineral water system through the eleventh water supply channel 6020.

[0086] The pure water supply interface 608B can also be connected to the water dispenser 006 to supply pure water to the water dispenser 006. Optionally, such as Figure 3 As shown, the eighth water supply channel 608 has three pure water supply interfaces 608B, which are used to connect the pure water outlet valve, the pure water supply valve 0071, and the pipeline machine 006, respectively.

[0087] It is important to understand that the water supply line for the mineral water system is connected in parallel with the water supply line for generating purified raw water, and they can mix in the mineral water system to form mineral water.

[0088] The water purification system 003 also includes a pure water quality detection element 0034, which is used to detect the quality of the fluid flowing out of the pure water supply channel 640. Correspondingly, the eighth water supply channel 608 also includes a pure water quality detection interface 608C, which is located between the pure water control valve outlet interface 608A and the pure water supply interface 608B. The pure water quality detection interface 608C is used to communicate with the pure water quality detection element 0034 to detect the total dissolved solids content in the pure water flowing through the eighth water supply channel 608. Optionally, the pure water quality detection element 0034 can be a TDS (Total Dissolved Solids) sensor. The TDS sensor is installed on the pure water quality detection interface 608C and is installed at an angle to the flow channel axis in the eighth water supply channel 608 to ensure that the pure water in the eighth water supply channel 608 fully contacts the detection surface of the TDS sensor.

[0089] In some embodiments, the membrane purification water path 620 further includes a ninth water supply channel 609, which has a membrane filtration wastewater inlet 609A and a membrane filtration wastewater outlet 609B. The membrane filtration wastewater inlet 609A is used to communicate with the reverse osmosis filter element 502, and the membrane filtration wastewater outlet 609B is used to communicate with the wastewater plug 5021. The ninth water supply channel 609 is used to guide the wastewater generated by the reverse osmosis filter element 502 to the wastewater plug 5021.

[0090] Based on the embodiments of this application, the pre-filter 501 can also filter the raw water to form purified raw water. Therefore, the soft and clean dual water circuit board 60 also has a purified raw water supply circuit 650. The purified raw water supply circuit 650 includes a tenth water transmission channel 6010. The tenth water transmission channel 6010 includes a domestic water solenoid valve return water interface 6010A and a purified raw water supply interface (not shown in the figure). The domestic water solenoid valve return water interface 6010A is used to connect with the outlet of the domestic water solenoid valve 0072. The pre-filter 501 is also used to connect with the inlet of the domestic water solenoid valve. The domestic water solenoid valve 0072 can introduce the purified raw water filtered by the pre-filter 501 into the tenth water transmission channel 6010. The purified raw water supply interface is connected to the mineral water system. The purified raw water in the tenth water transmission channel 6010 can be supplied to the mineral water system through the purified raw water supply interface.

[0091] That is, in one embodiment of this application, the second water supply channel 602 is provided with an interface corresponding to the inlet of the domestic water solenoid valve 0072, so as to transport the purified raw water filtered by the pre-filter 501 to the tenth water supply channel 6010 through the domestic water solenoid valve 0072.

[0092] It is understandable that the tenth water supply channel 6010 is also equipped with a corresponding interface for connecting the pipes in the mineral water system, so as to deliver the purified raw water in the tenth water supply channel 6010 to the mineral water system.

[0093] This application embodiment also provides a water purifier 001, including a water softening system 002 and a water purification system 003. The water softening system 002 is used to soften the supplied raw water to form soft water, which can be directly supplied to the user or supplied to the water purification system 003 for purification. The water purification system 003 includes a filtration system 50 and a dual-water circuit board 60 for both soft and pure water. The filtration system 50 includes a pre-filter 501, a reverse osmosis filter 502, and a post-filter 503 connected in sequence. The dual-water circuit board 60 is connected to the water softening system 002 and the filtration system 50 respectively, so as to guide the soft water formed by the water softening system 002 through the pre-filter 501, the reverse osmosis filter 502, and the post-filter 503 in sequence to form pure water. The pure water can be directly supplied to the user or supplied to the hot water system 004 of the water purifier 001 to form hot water.

[0094] In addition, in one embodiment, the water purifier 001 may also include a mineral water system, that is, the water purifier 001 can supply both pure water and mineral water according to the user's needs.

[0095] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. 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 described 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 component 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.

[0096] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A soft and clean dual-water circuit board, characterized in that, The dual-water circuit board for softening and purifying water is used in a water purifier, which includes a water softening system and a water purification system; the dual-water circuit board for softening and purifying water has: The pre-purification water path is connected to the pre-filter of the water purification system. The pre-purification water path is also used to connect to the soft water system to guide the soft water output by the soft water system into the pre-filter to complete the pre-filtration and form pre-filtered water. The pre-purification water path is also used to connect to the raw water source to guide the raw water into the pre-filter to complete the pre-filtration and form purified raw water. The membrane purification water path is connected to the pre-filter and reverse osmosis filter of the water purification system respectively. The membrane purification water path is used to guide the pre-filtered water into the reverse osmosis filter to complete membrane filtration, so as to convert the pre-filtered water into membrane filtered water. as well as The post-purification water path is connected to the reverse osmosis filter element and the post-filter element of the water purification system, respectively. The post-purification water path is used to guide the membrane filtered water into the post-filter element to complete the post-filtration, so as to convert the membrane filtered water into pure water. The post-purification water path and the pre-purification water path are also respectively used to connect with the mineral water system so that the purified raw water and the pure water can be mixed in the mineral water system to form mineral water.

2. The soft and clean dual-water circuit board according to claim 1, characterized in that, The pre-purification water circuit includes a first water supply channel, which includes a raw water inlet, a soft water inlet, and a pre-filter water supply interface. The pre-filter water supply interface is used to connect with the pre-filter of the water purifier; The soft water inlet is used to connect with the soft water system of the water purifier, so as to guide the soft water of the soft water system into the pre-filter through the first water delivery channel; The raw water inlet is used to connect to the raw water source so as to guide the raw water into the pre-filter through the first water conveying channel.

3. The soft and clean dual-water circuit board according to claim 1, characterized in that, The membrane purification water circuit includes a second water conveying channel, a third water conveying channel, and a fourth water conveying channel; The second water supply channel is used to connect to the pre-filter cartridge and the pre-control valve of the water purification system respectively, so as to guide the pre-filtered water formed by the pre-filter cartridge into the pre-control valve; The third water supply channel is used to connect to the pre-control valve and the booster pump of the water purification system respectively, so as to guide the pre-filtered water flowing out of the pre-control valve into the booster pump. The fourth water supply channel is used to connect to the booster pump and the reverse osmosis filter element respectively, so as to guide the pre-filtered water flowing out of the booster pump into the reverse osmosis filter element.

4. The soft and clean dual-water circuit board according to claim 3, characterized in that, The second water conveying channel, the third water conveying channel, and the fourth water conveying channel are arranged at intervals; The second water supply channel has a pre-filter return water interface for communicating with the outlet of the pre-filter cartridge, and a pre-control valve inlet interface for communicating with the pre-control valve. The third water supply channel includes a pre-control valve outlet for communicating with the pre-control valve, and a booster pump inlet for communicating with the booster pump inlet. The fourth water supply channel has a booster pump outlet for connecting to the outlet of the booster pump, and a membrane filtration water supply interface for connecting to the reverse osmosis filter element.

5. The soft and clean dual-water circuit board according to claim 4, characterized in that, The fourth water supply channel also includes a raw water quality testing interface located between the booster pump outlet and the membrane filter supply interface. The raw water quality testing interface is used to connect with a raw water quality testing device to detect the total dissolved solids content in the pre-filtered water flowing through the fourth water supply channel.

6. The soft and clean dual-water circuit board according to claim 3, characterized in that, The water circuit board also has a fifth water conveying channel and a sixth water conveying channel arranged at intervals, the fifth water conveying channel including a first water conveying section; The membrane purification water circuit also includes a first water conveying section and a sixth water conveying channel; The first water conveying section has a membrane filtration return water interface for communicating with the reverse osmosis filter element, and a membrane filtration control valve inlet interface for communicating with the membrane filtration control valve of the water purification system, so that the membrane filtration water formed by the reverse osmosis filter element is guided by the fifth water conveying channel into the membrane filtration control valve of the water purification system. The sixth water supply channel has a membrane filter control valve outlet for communicating with the membrane filter control valve, and a booster pump inlet for communicating with the booster pump, so that the membrane filtered water directed out of the membrane filter control valve flows back into the booster pump and then circulates to the fourth water supply channel for repeated membrane filtration.

7. The soft and clean dual-water circuit board according to claim 1, characterized in that, The water circuit board also has a fifth water conveying channel, which includes a second water conveying section; The post-purification water path includes a second water supply section, which has a membrane filtration return water interface for communicating with the reverse osmosis filter element and a post-filtration water supply interface for communicating with the post-filter element, so that at least a portion of the membrane filtration water formed by the reverse osmosis filter element enters the post-filter element through the fifth water supply channel.

8. The soft and clean dual-water circuit board according to claim 1, characterized in that, The soft and clean dual water circuit board also has a pure water supply circuit, which is connected to the post-filter of the water purification system to receive the pure water output by the post-filter.

9. The soft and clean dual-water circuit board according to claim 8, characterized in that, The pure water supply circuit includes a seventh water conveyance channel, an eighth water conveyance channel, and an eleventh water conveyance channel that are spaced apart. The seventh water supply channel is connected to the post-filter and the pure water control valve of the water purification system, respectively, so as to guide the pure water formed by the post-filter into the pure water control valve through the seventh water supply channel; The eighth water supply channel is connected to the pure water control valve and is used to receive pure water supplied by the pure water control valve. The eleventh water supply channel is used to connect with the outlet end of the pure water supply valve, and the eighth water supply channel is used to connect with the inlet end of the pure water supply valve. The pure water supply valve guides the pure water formed by the post-filter cartridge into the eleventh water supply channel through the eighth water supply channel. The eleventh water supply channel is also used to connect with the mineral water system.

10. The soft and clean dual-water circuit board according to claim 9, characterized in that, The eighth water supply channel includes multiple pure water supply interfaces; One of the pure water supply interfaces is used to connect to a pure water outlet valve to supply pure water to the user, and another pure water supply interface is used to connect to the pure water supply valve to supply pure water to the eleventh water supply channel; and / or, One of the pure water supply interfaces is used to connect to the pipeline machine to supply pure water to the pipeline machine.

11. The soft and clean dual-water circuit board according to claim 10, characterized in that, The eighth water supply channel includes a pure water control valve outlet port, a pure water supply port, and a pure water quality detection port located between the pure water control valve outlet port and the pure water supply port. The outlet port of the pure water control valve is used to connect with the pure water control valve to receive pure water supplied by the pure water control valve. The pure water supply interface is used to supply pure water to the water-requiring component; The pure water quality testing interface is used to connect with a pure water quality testing device to detect the total dissolved solids content in the pure water flowing through the eighth water supply channel.

12. The soft and clean dual-water circuit board according to claim 1, characterized in that, The membrane purification water circuit also includes a ninth water conveying channel, which has a membrane filtration wastewater inlet for communicating with the reverse osmosis filter element and a membrane filtration wastewater outlet for communicating with the wastewater plug, so as to guide the wastewater generated by the reverse osmosis filter element to be discharged to the wastewater plug through the ninth water conveying channel.

13. The soft and clean dual-water circuit board according to claim 1, characterized in that, The soft and clean dual-water circuit board also has a purified raw water supply circuit, which includes a tenth water delivery channel. The tenth water delivery channel includes a domestic water solenoid valve return interface and a purified raw water supply interface. The domestic water solenoid valve return interface is used to connect with the outlet of the domestic water solenoid valve. The outlet of the pre-filter is also used to connect with the inlet of the domestic water solenoid valve. The tenth water delivery channel is used to receive the purified raw water guided by the domestic water solenoid valve. The purified raw water supply interface is used to connect with the mineral water system to guide the purified raw water from the tenth water delivery channel to the mineral water system.

14. A water purifier, characterized in that, include: A water softening system is used to soften the supplied raw water to produce soft water; as well as A water purification system includes a filtration system and a soft water purification dual-water circuit board according to any one of claims 1-13. The filtration system includes a pre-filter, the reverse osmosis filter, and the post-filter connected in sequence. The soft water purification dual-water circuit board is connected to the soft water system and the filtration system respectively to guide the soft water formed by the soft water system.

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