Purified water dispenser

Abstract

The embodiment of the utility model discloses a purified water dispenser, a control method and a computer readable storage medium, the purified water dispenser comprises a water softening system, a water purifying system and a controller, a water inlet of the water softening system is used for connecting tap water, and a water outlet of the water softening system can output soft water; a water inlet of the water purification system is communicated with a water outlet of the water softening system, a water outlet of the water purification system is used for outputting purified water, the water purification system comprises a pressurizing pipeline and a filtering system, a water inlet of the pressurizing pipeline is communicated with the water inlet of the water purification system, and a water outlet of the pressurizing pipeline is communicated with a water inlet of the filtering system; a water outlet of the filtering system is communicated with a water outlet of the water purifying system; the controller is connected with the water softening system and is connected with the pressurizing pipeline; when the water outlet of the water softening system outputs hard water, the controller can control the water pressure in the pressurizing pipeline to be reduced, so that the reverse osmosis filter element can reach the normal service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of drinking water devices, in particular to a purified drinking water machine. BACKGROUND

[0002] In the related technical field, when hard water rich in calcium and magnesium ions enters the water purification system, calcium and magnesium ions will accumulate in large quantities at the filter core, affecting the normal service life of the filter core. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the present application provides a purified drinking water machine, which aims to control the water pressure in the booster pipeline to be reduced when the water outlet of the soft water system outputs hard water, so as to reduce the speed of concentration and accumulation of salt and impurities in the water on the surface of the reverse osmosis membrane, reduce the influence on the service life of the reverse osmosis filter core, so that the reverse osmosis membrane can reach the normal service life, and the user experience is improved.

[0004] The embodiment of the present application provides a purified drinking water machine, which comprises a soft water system, a water purification system and a controller, the water inlet of the soft water system is used for connecting tap water, and the water outlet of the soft water system can output soft water; the water inlet of the water purification system is in communication with the water outlet of the soft water system, the water outlet of the water purification system is used for outputting pure water, the water purification system comprises a booster pipeline and a filter system, the water inlet of the booster pipeline is in communication with the water inlet of the water purification system, and the water outlet of the booster pipeline is in communication with the water inlet of the filter system; the water outlet of the filter system is in communication with the water outlet of the water purification system; the controller is connected with the soft water system and the booster pipeline; when the water outlet of the soft water system outputs hard water, the controller can control the water pressure in the booster pipeline to be reduced, so as to protect the filter system.

[0005] In some embodiments, the booster pipeline comprises a booster water pipe and a variable-frequency booster pump, the water inlet of the booster water pipe is in communication with the water inlet of the booster pipeline, and the water outlet of the booster water pipe is in communication with the water outlet of the booster pipeline; the variable-frequency booster pump is arranged on the booster water pipe and connected with the controller; when the water outlet of the soft water system outputs hard water, the controller can control the variable-frequency booster pump to reduce the rotating speed, so that the water pressure in the booster water pipe is reduced, thereby protecting the filter system.

[0006] In some embodiments, the filter system comprises a pre-filter core and a reverse osmosis filter core, the water inlet of the pre-filter core is in communication with the water inlet of the filter system; the water outlet of the pre-filter core is in communication with the water inlet of the booster water pipe; the water inlet of the reverse osmosis filter core is in communication with the water outlet of the booster water pipe, and the water outlet of the reverse osmosis filter core is in communication with the water outlet of the filter system.

[0007] In some embodiments, the water purification system further comprises a waste water drainage pipeline, the waste water drainage pipeline is in communication with the waste water outlet of the reverse osmosis filter core and is used for discharging waste water.

[0008] In some embodiments, the wastewater drainage pipeline comprises a wastewater drainage pipe and a wastewater valve, the wastewater drainage pipe is in communication with the wastewater port of the reverse osmosis filter core, and the wastewater valve is arranged on the wastewater drainage pipe and connected with the controller; wherein, when the water softening system outputs hard water, the controller can control the wastewater valve to increase the wastewater discharge capacity to protect the reverse osmosis filter core.

[0009] In some embodiments, the water softening system comprises a water softening valve, a resin tank and a salt tank; the water softening valve is in communication with the water inlet and the water outlet of the water softening system, and is in communication with the resin tank and the salt tank, and is connected with the controller; the resin tank is used for softening hard water into soft water; the salt tank is used for storing regeneration salt, and the regeneration salt can enter the resin tank through the water softening valve to regenerate the resin in the resin tank; wherein, when the regeneration mode is started, the controller controls the water softening valve to not communicate the resin tank with the water outlet of the water softening system, controls the water softening valve to communicate the water inlet and the water outlet of the water softening system, so that the water outlet of the water softening system outputs hard water, and controls the water pressure in the booster pipeline to be reduced to protect the filter system; when the soft water mode is stopped, the controller controls the water softening valve to not communicate the resin tank with the water outlet of the water softening system, controls the water softening valve to communicate the water inlet and the water outlet of the water softening system, so that the water outlet of the water softening system outputs hard water, and controls the water pressure in the booster pipeline to be reduced to protect the filter system.

[0010] In some embodiments, the water softening system comprises a water softening valve, a resin tank, a salt tank and a soft water bypass pipeline; the water softening valve is in communication with the water inlet and the water outlet of the water softening system, and is in communication with the resin tank and the salt tank, and is connected with the controller; the resin tank is used for softening hard water into soft water; the salt tank is used for storing regeneration salt, and the regeneration salt can enter the resin tank through the water softening valve to regenerate the resin in the resin tank; the soft water bypass pipeline is in communication with the water inlet and the water outlet of the water softening system; wherein, when the regeneration mode is started, the controller controls the water softening valve to not communicate the resin tank with the water outlet of the water softening system, controls the soft water bypass pipeline to be opened, so that the water inlet and the water outlet of the water softening system can be communicated through the soft water bypass pipeline, so that the water outlet of the water softening system outputs hard water, and controls the water pressure in the booster pipeline to be reduced to protect the filter system; when the soft water mode is stopped, the controller controls the water softening valve to not communicate the resin tank with the water outlet of the water softening system, controls the soft water bypass pipeline to be opened, so that the water inlet and the water outlet of the water softening system can be communicated through the soft water bypass pipeline, so that the water outlet of the water softening system outputs hard water, and controls the water pressure in the booster pipeline to be reduced to protect the filter system.

[0011] In some embodiments, the soft water bypass pipeline comprises a soft water bypass pipe and a soft water bypass valve, the soft water bypass pipe being connected to the water inlet and the water outlet of the soft water system, and the soft water bypass valve being arranged on the soft water bypass pipe and connected to the controller. When the regeneration mode is started, the controller controls the soft water valve to disconnect the resin tank and the water outlet of the soft water system, controls the soft water bypass valve to open, and controls the water pressure in the booster pipeline to decrease, so that the water inlet and the water outlet of the soft water system are connected through the soft water bypass pipe, the water outlet of the soft water system outputs hard water, and the filter system is protected. When the soft water mode is stopped, the controller controls the soft water valve to disconnect the resin tank and the water outlet of the soft water system, controls the soft water bypass valve to open, and controls the water pressure in the booster pipeline to decrease, so that the water inlet and the water outlet of the soft water system are connected through the soft water bypass pipe, the water outlet of the soft water system outputs hard water, and the filter system is protected.

[0012] In some embodiments, the soft water system further comprises a salt level sensor arranged in the salt tank and connected to the controller, and the controller can obtain the detected salt level of the salt tank through the salt level sensor. Before the regeneration mode is started, the controller obtains the detected salt level of the salt tank through the salt level sensor, and when the detected salt level is lower than the preset salt level, the controller controls the soft water valve to disconnect the resin tank and the water outlet of the soft water system, controls the soft water valve to connect the water inlet and the water outlet of the soft water system, so that the water outlet of the soft water system outputs hard water, and controls the water pressure in the booster pipeline to decrease, so as to protect the filter system.

[0013] In some embodiments, the purified drinking water machine further comprises a housing assembly having an inner cavity, the soft water system, the purified water system, and the controller being arranged in the inner cavity, and the faucet being connected to the housing assembly and connected to the purified water system. The water leakage level sensor is arranged in the inner cavity and connected to the controller, and the controller can obtain the water leakage level in the inner cavity through the water leakage level sensor. When the controller obtains the water leakage level in the inner cavity through the water leakage level sensor and reaches the second preset water level, the controller controls the water outlet of the soft water system to be closed.

[0014] Based on the purified drinking water machine of the present application, when the water outlet of the soft water system outputs hard water, the controller can control the variable frequency booster pump to switch from the second boosting state to the first boosting state, so as to reduce the water pressure in the booster pipe, reduce the speed of salt and impurities in the water accumulating on the surface of the reverse osmosis membrane, reduce the impact on the service life of the reverse osmosis filter core, so that the reverse osmosis membrane can reach the normal service life, and improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative labor.

[0016] Figure 1 The structure schematic diagram of the water purifier in one embodiment of the present application;

[0017] Figure 2 The internal structure schematic diagram of the water purifier in one embodiment of the present application from one view angle;

[0018] Figure 3 The internal structure schematic diagram of the water purifier in one embodiment of the present application from another view angle;

[0019] Figure 4 The water path structure schematic diagram of the water purifier in one embodiment of the present application;

[0020] Figure 5 The water path structure schematic diagram of the water purifier in another embodiment of the present application;

[0021] Figure 6 The water path structure schematic diagram of the water purifier in another embodiment of the present application;

[0022] Figure 7 The water path structure schematic diagram of the water purifier in another embodiment of the present application;

[0023] Figure 8 The flow chart of the water purifier in one embodiment of the present application;

[0024] Figure 9 The flow chart of the water purifier in one embodiment of the present application;

[0025] Figure 10 The flow chart of the water purifier in one embodiment of the present application;

[0026] Figure 11 The flow chart of the water purifier in another embodiment of the present application;

[0027] Figure 12 The flow chart of the water purifier in another embodiment of the present application;

[0028] Figure 13 The flow chart of the water purifier in another embodiment of the present application;

[0029] Figure 14 The flow chart of the water purifier in another embodiment of the present application;

[0030] Figure 15 Flow chart of the water purifier in another embodiment of the present application;

[0031] Figure 16 Flow chart of the water purifier in another embodiment of the present application;

[0032] Figure 17 Flow chart of the water purifier in another embodiment of the present application.

[0033] Explanation of reference signs: 001, water purifier; 1A, faucet; 10, housing assembly; 10A, inner cavity; 002, soft water system; 010, resin tank; 020, soft water valve; 030, salt tank; 090, soft water bypass pipeline; 091, soft water bypass pipe; 092, soft water bypass valve; 050, salt level sensor; 060, soft water level sensor; 004, hot water system; 20, hot tank assembly; 25, water replenishing pipe; 251, water replenishing valve; 003, water purification system; 50, filtration system; 52, pre-filter cartridge; 53, reverse osmosis filter cartridge; 54, waste water drainage pipeline; 541, waste water drainage pipe; 542, waste water valve; 543, adjustable waste water valve; 55, booster pipeline; 551, booster water pipe; 552, booster pump; 553, variable frequency booster pump; 57, pipeline machine. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] Please refer to Figures 1-4 The embodiment of the present application provides a water purifier 001, which comprises a housing assembly 10, a controller, a faucet 1A, a hot water system 004 and a water purification system 003.

[0036] The housing assembly 10 has an inner cavity 10A, and the hot water system 004 and the water purification system 003 are both installed in the inner cavity 10A, so as to protect the hot water system 004 and the water purification system 003 by the housing assembly 10, thereby reducing the probability of damage of the hot water system 004 and the water purification system 003. It can be understood that the material of the housing assembly 10 can be at least one of metal and plastic. For example, the material of the housing assembly 10 can be metal, so that the overall structure of the housing assembly 10 has high structural strength, thereby reducing the probability of damage of the housing assembly 10, and further reducing the probability of damage of the hot water system 004 and the water purification system 003, so that the water purifier 001 can have a longer service life. The material of the housing assembly 10 can also be plastic, which can reduce its weight and material cost while ensuring the structural strength.

[0037] The faucet 1A is connected with the shell assembly 10 and communicates with the hot water system 004 and the purified water system 003. When the faucet 1A is opened, the hot water in the hot water system 004 or the normal temperature water in the purified water system 003 can flow out through the faucet 1A to provide hot water or normal temperature water for the user. It can be understood that the purified water dispenser 001 can have two faucets 1A, one of which communicates with the hot water system 004 and the other of which communicates with the purified water system 003, so as to provide hot water and normal temperature water for the user separately. In other embodiments, the faucet 1A can also communicate with the hot water system 004 and the purified water system 003 respectively, and the faucet 1A can flow out hot water or normal temperature water by switching.

[0038] It can be understood that the faucet 1A can also be a smart faucet 1A. When the controller detects a normal temperature water taking signal or a hot water system 004 water replenishing signal at the smart faucet 1A, the controller can control the purified water system 003 to start water making to ensure that the user can take normal temperature water and hot water from the smart faucet 1A in time, reduce the waiting time of the user, and improve the use experience of the user.

[0039] The hot water system 004 includes a hot tank assembly 20, which communicates with the faucet 1A and the purified water system 003, can heat the normal temperature water filtered by the purified water system 003, and provide hot water for the user when the faucet 1A is opened.

[0040] The purified water system 003 can be connected with raw water. When the controller detects a normal temperature water taking signal or a hot tank assembly 20 water replenishing signal at the faucet 1A, the purified water system 003 is controlled to start water making. When the two signals disappear, the controller controls the purified water system 003 to stop water making and enter a standby state. The normal temperature water at the water outlet of the purified water system 003 can enter the hot tank assembly 20 or directly flow out through the faucet 1A.

[0041] Please refer to Figures 1-4 . Specifically, the purified water system 003 can include a filtering system 50. The water inlet of the filtering system 50 communicates with the water inlet of the purified water system 003, and the water outlet of the filtering system 50 communicates with the water outlet of the purified water system 003. The filtering system 50 can include a plurality of filter cartridges, which can be independently arranged or integrated into a composite filter cartridge.

[0042] Please refer to Figures 1-4More specifically, the filter system 50 can include a primary filter element and a secondary filter element, the primary filter element can be the pre-filter element 52, and the secondary filter element can be the reverse osmosis filter element 53. The water inlet of the pre-filter element 52 is in communication with the water inlet of the filter system 50, the water outlet of the pre-filter element 52 is in communication with the water inlet of the reverse osmosis filter element 53, and the water outlet of the reverse osmosis filter element 53 is in communication with the water outlet of the filter system 50.

[0043] The pre-filter element 52 is used to achieve the preliminary filtration of raw water, and can filter out large-particle substances such as silt, rust, insect eggs, and red worms in the raw water. The raw water can be tap water or well water, and the pre-filter element 52 can be a PP cotton filter element (polypropylene melt-blown filter element), a carbon rod filter element, or a composite filter element.

[0044] The reverse osmosis filter element 53 has a reverse osmosis membrane, which can be an artificial semi-permeable membrane. The membrane pore size of the reverse osmosis membrane is very small, and can effectively remove impurities such as dissolved salts, colloids, microorganisms, and organic matter in water. A pure water pipe is connected between the reverse osmosis filter element 53 and the faucet 1A1, so that the user can obtain water filtered by the reverse osmosis filter element 53 through the faucet 1A1. The water can be pure water, i.e., normal-temperature water.

[0045] Please refer to Figures 1-4 In order to facilitate the discharge of impurities removed by the filter system 50, the water purification system 003 further includes a waste water drainage pipeline 54, which includes a waste water drainage pipe 541 and a waste water valve 542. The waste water drainage pipe 541 is in communication with the waste water outlet of the filter system 50, and the waste water valve 542 is arranged on the waste water drainage pipe 541. The waste water valve 542 is used to control the discharge of waste water.

[0046] In other embodiments, the filter system 50 can further include a post-filter element. The water inlet of the post-filter element is in communication with the water outlet of the reverse osmosis filter element 53, and the water outlet of the post-filter element is in communication with the water outlet of the filter system 50. The post-filter element is used to adsorb odors and residual chlorine, and can be used to improve the taste of normal-temperature water. The post-filter element can be an activated carbon filter element. It can be understood that the pre-filter element 52 and the post-filter element can be integrated into a primary filter element, so that when the user replaces the primary filter element, the pre-filter element 52 and the post-filter element can be replaced together, thereby improving the efficiency of filter element replacement.

[0047] It can be understood that the waste water drainage pipeline 54 can be in communication with the waste water outlet of the pre-filter element 52 and the waste water outlet of the reverse osmosis filter element 53. In other embodiments, the waste water drainage pipeline 54 can only be in communication with the waste water outlet of the reverse osmosis filter element 53.

[0048] It can be understood that in the embodiments of the present application, the filter system 50 can also only include the reverse osmosis filter element 53, which is used to filter impurities in water at one time to provide pure water for the user.

[0049] Please refer to Figures 1-4 Further, since the reverse osmosis filter 53 has a working water pressure requirement, the water purification system 003 further comprises a booster pipeline 55, a water inlet of the booster pipeline 55 is in communication with the water inlet of the water purification system 003, or is in communication with the water inlet of the water purification system 003 through the pre-filter 52, and a water outlet of the booster pipeline 55 is in communication with the water inlet of the reverse osmosis filter 53.

[0050] Please refer to Figures 1-4 Specifically, the booster pipeline 55 comprises a booster water pipe 551 and a booster pump 552, a water inlet of the booster water pipe 551 is in communication with the water inlet of the booster pipeline 55, and a water outlet of the booster water pipe 551 is in communication with the water outlet of the booster pipeline 55. The booster pump 552 is arranged on the booster water pipe 551. The booster pump 552 can increase the water pressure to the working pressure range required by the reverse osmosis membrane, so as to ensure that the reverse osmosis membrane can work normally, and to achieve stable water production and good filtration effect.

[0051] Please refer to Figures 1-4 In order to facilitate the water outlet of the water purification system 003 to supply water to the hot tank assembly 20, and to directly provide normal temperature water to the faucet 1A, the hot water system 004 further comprises a water supply pipe 25 and a water supply valve 251 arranged on the water supply pipe 25, the water supply pipe 25 is in communication with the water outlet of the water purification system 003 and the hot tank assembly 20, and the water supply valve 251 is arranged on the water supply pipe 25. When the hot tank assembly 20 needs to be supplied with water, the water supply valve 251 is opened, and the normal temperature water at the water outlet of the water purification system 003 can enter the hot tank assembly 20. When the user needs to take normal temperature water, the water supply valve 251 is closed, and the normal temperature water at the water outlet of the water purification system 003 can flow out through the faucet 1A. Of course, when the user needs to take normal temperature water, the water supply valve 251 can also be opened, that is, the water purification system 003 can also simultaneously meet the requirements of normal temperature water production and water supply to the hot tank assembly 20.

[0052] Please refer to Figures 1-4 It can be understood that the faucet 1A can also be installed near the operation panel and is in communication with the hot tank assembly 20 and the water purification system 003 through pipelines, so that the user can control the water outlet of the faucet 1A through the operation panel, thereby facilitating the user to take hot water and normal temperature water from the faucet 1A.

[0053] Please refer to Figures 1-4 It can be understood that the purified drinking water machine 001 can further comprise a pipeline machine 57, and the normal temperature water can also enter the pipeline machine 57 after passing through the one-way valve to supply water to the pipeline machine 57.

[0054] However, when the water inlet of the water purification system 003 is directly connected to raw water, if the raw water is hard water rich in calcium and magnesium ions, the hard water rich in calcium and magnesium ions directly entering the water purification system 003 will cause a large amount of calcium and magnesium ions to accumulate at the filter, affecting the normal service life of the filter.

[0055] Please refer to Figures 1-4 , based on the above problems, the purified water machine 001 can also include a soft water system 002, the soft water system 002 is also arranged in the shell assembly 10, the water inlet of the soft water system 002 is used for accessing raw water, and the water outlet of the soft water system 002 is in communication with the water inlet of the purified water system 003, the soft water system 002 can soften hard water rich in calcium and magnesium ions into soft water, that is, the soft water system 002 can adsorb calcium and magnesium ions in hard water, so that the water outlet of the soft water system 002 outputs soft water, and the soft water enters the purified water system 003, which can reduce the probability of calcium and magnesium ions accumulating in the filter core in large quantities, so as to ensure that the filter core has a normal service life.

[0056] Please refer to Figures 1-4 , specifically, the soft water system 002 includes a soft water valve 020, a resin tank 010, and a salt tank 030. The soft water valve 020 is in communication with the water inlet and the water outlet of the soft water system 002, and is in communication with the resin tank 010 and the salt tank 030, and is connected with the controller; the resin tank 010 is used for softening hard water into soft water; the salt tank 030 is used for storing regenerative salt, and the regenerative salt can enter the resin tank 010 through the soft water valve 020 to regenerate the resin in the resin tank 010.

[0057] Please refer to Figure 4 , when the soft water mode is started, the controller can control the soft water valve 020 to communicate the water inlet of the soft water system 002 and the resin tank 010, and to communicate the water outlet of the resin tank 010 and the water outlet of the soft water system 002. At this time, hard water can enter the resin tank 010 through the soft water valve 020, and sodium ions on the resin in the resin tank 010 can exchange with calcium and magnesium ions in the hard water, thereby adsorbing calcium and magnesium ions, so that the hard water becomes soft water and is stored in the resin tank 010. When the user takes pure water from the faucet 1A, the soft water in the resin tank 010 can flow out through the water outlet of the soft water valve 020 and enter the purified water system 003, and the soft water can be directly output to the faucet 1A after being filtered by the purified water system 003 to provide the user with normal temperature pure water; the soft water can also be output to the hot tank assembly 20 or the pipeline machine 57 for heating, and then output to the faucet 1A through the hot tank assembly 20 to provide the user with hot water, or directly provide the user with hot water through the pipeline machine 57.

[0058] When all the sodium ions on the resin become calcium and magnesium ions, the resin reaches a saturated state, at which point the resin loses the ability to soften hard water, and the controller can control the water softening system 002 to start the regeneration mode. It can be understood that the controller can control the water softening system 002 to start the regeneration program at a preset interval, so as to regenerate the resin, so as to ensure that the user can access soft water. For example, the preset interval can be 12 hours, 24 hours, 36 hours, etc. In the embodiments of the present application, the preset interval is not limited.

[0059] Please refer to Figure 4 When the regeneration mode is started, the controller controls the water softening valve 020 to stop connecting the resin tank 010 and the water outlet of the water softening system 002, and controls the water softening valve 020 to connect the water inlet and the water outlet of the water softening system 002, and controls the water softening valve 020 to connect the resin tank 010 and the salt tank 030. At this time, the hard water enters the resin tank 010 through the water softening valve 020, and enters the salt tank 030 from the resin tank 010 through the water softening valve 020. The water in the resin tank 010 enters the salt tank 030 and contacts the regeneration salt in the salt tank 030, and melts the regeneration salt to form brine. The water softening valve 020 can suck the brine in the salt tank 030 into the resin tank 010, so as to replace the calcium and magnesium ions on the resin with sodium ions in the brine, so as to restore the softening ability of the resin. It can be understood that in other embodiments, the water softening valve 020 can also directly inject raw water into the salt tank 030, so that the raw water melts the regeneration salt to form brine, and the water softening valve 020 sucks the brine in the salt tank 030 into the resin tank 010, so as to replace the calcium and magnesium ions on the resin with sodium ions in the brine, so as to restore the softening ability of the resin.

[0060] In the embodiments of the present application, in addition to the controller controlling the water softening system 002 to start the regeneration program at a preset interval, the controller can also determine whether the regeneration mode needs to be started by detecting the liquid level in the resin tank 010.

[0061] Please refer to Figure 2 and Figure 4 Specifically, the water softening system 002 further comprises a soft water level sensor 060, the soft water level sensor 060 is arranged in the resin tank 010, and the soft water level sensor 060 is connected with the controller. The controller can obtain the soft water level of the resin tank 010 through the soft water level sensor 060; when the soft water level is lower than a first preset water level, the controller controls the water softening valve 020 to start the regeneration mode. For example, the soft water level sensor 060 includes at least one of a float type water level sensor, a static pressure type water level sensor, a probe type water level sensor, a Hall type water level sensor, an ultrasonic type water level sensor, a photoelectric type water level sensor, and a radar type water level sensor. In the embodiments of the present application, the specific form of the soft water level sensor 060 is not limited.

[0062] Please refer to Figure 2 and Figure 4 Since the soft water valve 020 does not connect the resin tank 010 with the water outlet of the soft water system 002 when the regeneration mode is started, and the soft water valve 020 does not connect the resin tank 010 with the water outlet of the soft water system 002 when the soft water mode is stopped, in order to facilitate the user to use the purified water machine 001 during this period, the controller can control the soft water valve 020 to connect the water inlet and the water outlet of the soft water system 002, so that the hard water can be directly output via the water outlet of the soft water valve 020 to enter the purified water system 003.

[0063] Please refer to Figure 2 and Figure 5 In other embodiments, the soft water system 002 can further include a soft water bypass pipeline 090, the soft water bypass pipeline 090 is connected with the water inlet and the water outlet of the soft water system 002, when the regeneration mode is started, the controller controls the soft water valve 020 not to connect the resin tank 010 with the water outlet of the soft water system 002, and controls the soft water bypass pipeline 090 to be opened, so that the water inlet and the water outlet of the soft water system 002 can be connected through the soft water bypass pipeline 090, so that the water outlet of the soft water system 002 outputs hard water; when the soft water mode is stopped, the controller controls the soft water valve 020 not to connect the resin tank 010 with the water outlet of the soft water system 002, and controls the soft water bypass pipeline 090 to be opened, so that the water inlet and the water outlet of the soft water system 002 can be connected through the soft water bypass pipeline 090, so that the water outlet of the soft water system 002 outputs hard water.

[0064] Please refer to Figure 2 and Figure 5 Specifically, the soft water bypass pipeline 090 includes a soft water bypass water pipe 091 and a soft water bypass valve 092, the soft water bypass water pipe 091 connects the water inlet and the water outlet of the soft water system 002; the soft water bypass valve 092 is arranged on the soft water bypass water pipe 091 and is connected with the controller. When the regeneration mode is started, the controller controls the soft water valve 020 not to connect the resin tank 010 with the water outlet of the soft water system 002, and controls the soft water bypass valve 092 to be opened, so that the water inlet and the water outlet of the soft water system 002 can be connected through the soft water bypass water pipe 091, so that the water outlet of the soft water system 002 outputs hard water; when the soft water mode is stopped, the controller controls the soft water valve 020 not to connect the resin tank 010 with the water outlet of the soft water system 002, and controls the soft water bypass valve 092 to be opened, so that the water inlet and the water outlet of the soft water system 002 can be connected through the soft water bypass water pipe 091, so that the water outlet of the soft water system 002 outputs hard water.

[0065] Please refer to Figure 2 and Figure 6, in order to reduce the influence of hard water rich in calcium and magnesium ions directly entering the water purification system on the normal service life of the filter element, in a specific embodiment, the wastewater discharge pipeline 54 can include an adjustable wastewater valve 543 arranged on the wastewater discharge pipeline 541, the adjustable wastewater valve 543 is connected with the controller, and the adjustable wastewater valve 543 has at least a closed state, a first open state and a second open state. When the adjustable wastewater valve 543 is in the closed state, the wastewater discharge pipeline 541 stops discharging wastewater outward; when the adjustable wastewater valve 543 is in the first open state, the wastewater discharge pipeline 541 discharges wastewater at a first wastewater discharge rate; when the adjustable wastewater valve 543 is in the second open state, the wastewater discharge pipeline 541 discharges wastewater at a second wastewater discharge rate, and the second wastewater discharge rate is greater than the first wastewater discharge rate.

[0066] Please refer to Figure 2 and Figure 6 When the regeneration mode is started or the soft water mode is closed, the water outlet of the soft water system 002 outputs hard water, and the controller can control the adjustable wastewater valve 543 to switch from the first open state to the second open state, so that the wastewater discharge rate of the wastewater discharge pipeline 541 can be increased, so that the wastewater generated by the filtration system 50 can be discharged in a large amount through the wastewater discharge pipeline 541, that is, the wastewater rich in calcium and magnesium ions can be discharged through the wastewater discharge pipeline 541, thereby reducing the concentration difference of the liquid on both sides of the reverse osmosis membrane, reducing the filtration pressure of the reverse osmosis membrane, reducing the consumption of the reverse osmosis membrane, so that the reverse osmosis membrane can reach the normal service life, and the user experience is improved.

[0067] Please refer to Figure 2 and Figure 7 In another specific embodiment, the booster pipeline 55 further includes a variable frequency booster pump 553 arranged on the booster water pipeline 551 and connected with the controller; the variable frequency booster pump 553 has at least a first booster state and a second booster state, when the variable frequency booster pump 553 is in the first booster state, the water pressure in the booster water pipeline 551 is a first water pressure; when the variable frequency booster pump 553 is in the second booster state, the water pressure in the booster water pipeline 551 is a second water pressure, and the second water pressure is greater than the first water pressure.

[0068] Please refer to Figure 2 and Figure 7 When the regeneration mode is started or the soft water mode is closed, the water outlet of the soft water system 002 outputs hard water, and the controller can control the variable frequency booster pump 553 to switch from the second booster state to the first booster state, so that the water pressure in the booster water pipeline 551 can be reduced, so as to reduce the speed of the salt and impurities in the water concentrating and accumulating on the surface of the reverse osmosis membrane, reduce the influence on the service life of the reverse osmosis filter element 53, so that the reverse osmosis membrane can reach the normal service life, and the user experience is improved.

[0069] Please refer to Figure 2 and Figure 4 In an embodiment, the soft water system 002 further comprises a salt level sensor 050, the salt level sensor 050 is arranged in the salt tank 030, and the salt level sensor 050 is connected with the controller, and the controller can obtain the detected salt level of the salt tank 030 through the salt level sensor 050; before the regeneration mode is started, the controller obtains the detected salt level of the salt tank 030 through the salt level sensor 050; when the detected salt level is lower than the preset salt level, it indicates that the amount of regeneration salt in the salt tank 030 is small and insufficient to complete a regeneration mode, at this time, the controller can control the prompting device to prompt the user that the amount of regeneration salt in the salt tank 030 is low, and control the soft water valve 020 to not connect the resin tank 010 and the water outlet of the soft water system 002, and control the soft water valve 020 to connect the water inlet and the water outlet of the soft water system 002, so that the water outlet of the soft water system 002 outputs hard water, and the controller also controls the waste water drainage pipeline 54 to increase the waste water discharge amount, so as to protect the filtration system 50. It can be understood that the prompting device includes a buzzer, an indicator light, a display icon, etc. In other embodiments, the prompting device can also be in other forms, and in the embodiments of the present application, the specific form of the prompting device is not limited.

[0070] Please refer to Figure 2 and Figure 4 In an embodiment, the purified drinking water machine 001 further comprises a water leakage level sensor, the water leakage level sensor is arranged in the inner cavity 10A and connected with the controller, and the controller can obtain the water leakage level in the inner cavity 10A through the water leakage level sensor; wherein, when the controller obtains the water leakage level in the inner cavity 10A through the water leakage level sensor to reach the second preset water level, it indicates that the internal waterway of the purified drinking water machine 001 leaks, at this time, the controller can control the prompting device to prompt the user that the purified drinking water machine 001 leaks, and control the water outlet of the soft water system 002 to be closed, so as to reduce the further leakage of the purified drinking water machine 001.

[0071] Please refer to Figures 6-9 The embodiments of the present application also provide a control method of the purified drinking water machine 001, which comprises:

[0072] Step S100, when the regeneration mode is started or when the soft water mode is stopped or when an abnormal signal is detected, the soft water system 002 outputs hard water.

[0073] In the embodiments of the present application, when the regeneration mode is started, or when the soft water mode is stopped, or when the controller detects an abnormal signal, the controller controls the soft water valve 020 to stop the communication between the resin tank 010 and the water outlet of the soft water system 002, so that the water outlet of the soft water system 002 outputs hard water. Specifically, the controller can control the communication between the water inlet and the water outlet of the soft water valve 020, so that the water outlet of the soft water system 002 can output hard water. The controller can also control the soft water bypass valve 092 to open, so that the water inlet and the water outlet of the soft water system 002 can communicate through the soft water bypass pipe 091, so that the water outlet of the soft water system 002 outputs hard water.

[0074] The abnormal signal detected by the controller includes an abnormal signal of the soft water valve 020 other than the blockage between the water inlet and the water outlet of the soft water valve 020.

[0075] Step S200: Increase the waste water discharge capacity of the waste water discharge pipeline 54 to protect the filtration system 50.

[0076] In the embodiments of the present application, the controller can control the adjustable waste water valve 543 to switch from the first open state to the second open state, so that the waste water discharge capacity of the waste water discharge pipeline 541 can be increased, so that the waste water generated by the filtration system 50 can be discharged in large quantities through the waste water discharge pipeline 541, that is, the waste water rich in calcium and magnesium ions can be discharged through the waste water discharge pipeline 541, thereby reducing the concentration difference of the liquid on both sides of the reverse osmosis membrane, reducing the filtration pressure of the reverse osmosis membrane, reducing the consumption of the reverse osmosis membrane, so that the reverse osmosis membrane can reach the normal service life, and improve the user experience.

[0077] Step S300: Control the water pressure in the booster pipeline 55 to be reduced to protect the filtration system 50.

[0078] In the embodiments of the present application, the controller can control the variable frequency booster pump 553 to switch from the second boosting state to the first boosting state, so that the water pressure in the booster water pipe 551 can be reduced, so as to reduce the speed of the salt and impurities in the water concentrated and accumulated on the surface of the reverse osmosis membrane, reduce the influence on the service life of the reverse osmosis filter element 53, so that the reverse osmosis membrane can reach the normal service life, and improve the user experience.

[0079] It can be understood that steps S200 and S300 can be selectively executed after step S100, and the method steps can be selected according to the actual product design.

[0080] Please refer to Figure 6 and Figure 10 In an embodiment, step S200 comprises:

[0081] Step S210, control the adjustable wastewater valve 543 to increase the wastewater discharge capacity, so as to increase the wastewater discharge capacity of the wastewater drain pipe 541, so as to protect the filtration system 50.

[0082] In the embodiment of the application, the controller can control the adjustable wastewater valve 543 to switch from the first open state to the second open state, so that the wastewater discharge capacity of the wastewater drain pipe 541 can be increased, so that the wastewater generated by the filtration system 50 can be discharged in a large amount via the wastewater drain pipe 541, that is, the wastewater rich in calcium and magnesium ions can be discharged via the wastewater drain pipe 541, thereby reducing the concentration difference of the liquid on both sides of the reverse osmosis membrane, reducing the filtration pressure of the reverse osmosis membrane, reducing the consumption of the reverse osmosis membrane, so that the reverse osmosis membrane can reach the normal service life, and improve the user experience.

[0083] Please refer to Figure 7 and Figure 11 In an embodiment, step S300 comprises:

[0084] Step S310, control the variable frequency booster pump 553 to reduce the speed, so that the water pressure in the booster water pipe 551 is reduced, thereby protecting the filtration system 50.

[0085] In the embodiment of the application, the controller can control the variable frequency booster pump 553 to switch from the second boosting state to the first boosting state, so that the water pressure in the booster water pipe 551 can be reduced, so as to reduce the speed of the salt and impurities in the water to concentrate and accumulate on the surface of the reverse osmosis membrane, reduce the impact on the service life of the reverse osmosis filter element 53, so that the reverse osmosis membrane can reach the normal service life, and improve the user experience.

[0086] Please refer to Figure 6 , Figure 7 and Figure 12 In an embodiment, step S100 comprises:

[0087] Step S110, when the regeneration mode is started, control the soft water valve 020 to not connect the resin tank 010 and the water outlet of the soft water system 002, and control the soft water valve 020 to connect the water inlet and the water outlet of the soft water system 002, so that the water outlet of the soft water system 002 outputs hard water.

[0088] In the embodiment of the application, when the regeneration mode is started, the controller controls the soft water valve 020 to not connect the resin tank 010 and the water outlet of the soft water system 002, in order to facilitate the user to use the purified water dispenser 001 during this period, the controller can control the soft water valve 020 to connect the water inlet and the water outlet of the soft water system 002, so that the hard water can be directly output via the water outlet of the soft water valve 020 to enter the purified water system 003, so that the user can still take water from the faucet 1A when the regeneration mode is started.

[0089] It can be understood that in other embodiments, when the soft water mode is started, the controller can also control the soft water bypass valve 092 to open, so that the water inlet and the water outlet of the soft water system 002 can be communicated via the soft water bypass pipe 091, and the water outlet of the soft water system 002 can also output hard water to enter the water purification system 003, so that the user can still take water from the faucet 1A when the soft water mode is started.

[0090] Step S120, when the soft water mode is stopped, control the soft water valve 020 to not communicate the resin tank 010 with the water outlet of the soft water system 002, and control the soft water valve 020 to communicate the water inlet and the water outlet of the soft water system 002, so that the water outlet of the soft water system 002 outputs hard water.

[0091] In the embodiments of the present application, when the soft water mode is stopped, the soft water valve 020 does not communicate the resin tank 010 with the water outlet of the soft water system 002, in order to facilitate the user to use the purified water dispenser 001 during this period, the controller can control the soft water valve 020 to communicate the water inlet and the water outlet of the soft water system 002, so that the hard water can be directly output via the water outlet of the soft water valve 020 to enter the water purification system 003, so that the user can still take water from the faucet 1A when the soft water mode is stopped.

[0092] It can be understood that in other embodiments, when the soft water mode is stopped, the controller can also control the soft water bypass valve 092 to open, so that the water inlet and the water outlet of the soft water system 002 can be communicated via the soft water bypass pipe 091, and the water outlet of the soft water system 002 can also output hard water to enter the water purification system 003, so that the user can still take water from the faucet 1A when the soft water mode is started.

[0093] Step S130, when the abnormal signal is detected, control the soft water valve 020 to not communicate the resin tank 010 with the water outlet of the soft water system 002, and control the soft water valve 020 to communicate the water inlet and the water outlet of the soft water system 002, so that the water outlet of the soft water system 002 outputs hard water.

[0094] In the embodiments of the present application, when the controller detects the abnormal signal, the controller controls the soft water valve 020 to not communicate the resin tank 010 with the water outlet of the soft water system 002, in order to facilitate the user to use the purified water dispenser 001 during this period, the controller can control the soft water valve 020 to communicate the water inlet and the water outlet of the soft water system 002, so that the hard water can be directly output via the water outlet of the soft water valve 020 to enter the water purification system 003, so that the user can still take water from the faucet 1A when the controller detects the abnormal signal.

[0095] It can be understood that in other embodiments, when the controller detects the abnormal signal, the controller can also control the soft water bypass valve 092 to open, so that the water inlet and the water outlet of the soft water system 002 can be communicated via the soft water bypass pipe 091, and the water outlet of the soft water system 002 can also output hard water to enter the water purification system 003, so that the user can still take water from the faucet 1A when the regeneration mode is started.

[0096] Please refer to Figure 6 , Figure 7 and Figure 13 In an embodiment, step S130 comprises:

[0097] Step S131, before the regeneration mode is started, the detection salt level of the salt tank 030 is obtained by the salt level sensor 050.

[0098] In the embodiment of the application, before the regeneration mode is started, the controller obtains the detection salt level of the salt tank 030 by the salt level sensor 050.

[0099] Step S132, when the detection salt level is lower than the preset salt level, the abnormal signal is controlled, the soft water valve 020 is controlled to communicate the water inlet and the water outlet of the soft water system 002, and the soft water valve 020 is controlled not to communicate the resin tank 010 and the water outlet of the soft water system 002, so that the water outlet of the soft water system 002 outputs hard water.

[0100] In the embodiment of the application, when the controller detects the abnormal signal that the detection salt level is lower than the preset salt level, it indicates that the regeneration salt amount in the salt tank 030 is less, which is insufficient to complete a regeneration mode, at this time the controller can control the prompting device to prompt the user that the regeneration salt amount in the salt tank 030 is low, and control the soft water valve 020 not to communicate the resin tank 010 and the water outlet of the soft water system 002, and control the soft water valve 020 to communicate the water inlet and the water outlet of the soft water system 002, so that the water outlet of the soft water system 002 outputs hard water, and the controller controls the waste water drainage pipe 54 to increase the waste water discharge amount, to protect the filtration system 50. It can be understood that the prompting device includes a buzzer, an indicator light, a display icon, etc. In other embodiments, the prompting device can also be in other forms, and in the embodiment of the application, the specific form of the prompting device is not limited.

[0101] Please refer to Figure 6 , Figure 7 and Figure 14 In an embodiment, step S130 further comprises:

[0102] Step S133, before the regeneration mode is started, the state of the soft water valve 020 is obtained.

[0103] In the embodiment of the application, before the regeneration mode is started, the controller can obtain the state of the soft water valve 020.

[0104] When the controller detects an abnormal signal other than the blockage between the water inlet and the water outlet of the soft water valve 020, the controller can control the soft water valve 020 to not connect the resin tank 010 and the water outlet of the soft water system 002, and control the soft water valve 020 to connect the water inlet and the water outlet of the soft water system 002, so that the water outlet of the soft water system 002 outputs hard water.

[0105] In the embodiments of the present application, when the controller detects an abnormal signal other than the blockage between the water inlet and the water outlet of the soft water valve 020, the controller can control the soft water valve 020 to not connect the resin tank 010 and the water outlet of the soft water system 002, and control the soft water valve 020 to connect the water inlet and the water outlet of the soft water system 002, so that the water outlet of the soft water system 002 outputs hard water. In other embodiments, the controller can also control the water inlet of the soft water valve 020 to be closed.

[0106] Please refer to Figure 6 , Figure 7 and Figure 15 , in an embodiment, the control method further comprises:

[0107] S400, when the soft water level is lower than the first preset water level, control the soft water valve 020 to connect the water inlet of the soft water system 002 and the resin tank 010, and control the soft water valve 020 to connect the resin tank 010 and the salt tank 030, to start the regeneration mode.

[0108] In the embodiments of the present application, when the soft water level is lower than the first preset water level, it indicates that the soft water amount in the resin tank 010 is low, and the controller controls the soft water valve 020 to connect the water inlet of the soft water system 002 and the resin tank 010, and controls the soft water valve 020 to connect the resin tank 010 and the salt tank 030, to start the regeneration mode.

[0109] Please refer to Figure 6 , Figure 7 and Figure 16 , in an embodiment, the control method further comprises:

[0110] S500, when the leakage water level reaches the second preset water level, control the water outlet of the soft water system 002 to be closed.

[0111] In the embodiment of the present application, when the controller obtains, through the water leakage level sensor, that the water leakage level in the inner cavity 10A reaches the second preset water level, it indicates that the water in the water route of the water purifier 001 leaks, at this time, the controller can control the prompting device to prompt the user that the water purifier 001 leaks, and control the water outlet of the soft water system 002 to be closed, so as to reduce the further water leakage of the water purifier 001. In other embodiments, the controller can also control the water inlet of the soft water valve 020 to be closed, which is not described in detail in the embodiment of the present application.

[0112] Please refer to Figure 6 、 Figure 7 and Figure 17 In an embodiment, the control method further comprises:

[0113] S600, when detecting that the soft water valve 020 appears the abnormal signal of blockage between the water inlet and the water outlet of the soft water valve 020, controlling the water outlet of the soft water system 002 to be closed.

[0114] In the embodiment of the present application, when the controller detects that the soft water valve 020 appears the abnormal signal of blockage between the water inlet and the water outlet of the soft water valve 020, the controller controls the water outlet of the soft water system 002 to be closed, so as to reduce the probability of damage of the soft water valve 020, and the controller can also control the prompting device to send prompt information to the user, so that the user knows the above abnormal situation. In other embodiments, the controller can also control the water inlet of the soft water valve 020 to be closed, which is not described in detail in the embodiment of the present application.

[0115] The embodiment of the present application also provides a computer readable storage medium, which stores computer program code, when the computer program code is executed, the steps of the above method are realized, which is not described in detail here.

[0116] The storage medium is exemplary. The storage medium can refer to any entity or device, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electric carrier signal, telecommunication signal and software distribution medium, etc. capable of carrying computer program code.

[0117] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0118] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or an indicated number of features. Thus, features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0119] In the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrated; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0120] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0121] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A water purifier, characterized in that, include: A water softening system, wherein the inlet of the water softening system is used to connect to tap water, and the outlet of the water softening system is capable of outputting soft water; A water purification system, wherein the inlet of the water purification system is connected to the outlet of the soft water system, and the outlet of the water purification system is used to output purified water; the water purification system includes a booster pipe and a filtration system, wherein the inlet of the booster pipe is connected to the inlet of the water purification system, and the outlet of the booster pipe is connected to the inlet of the filtration system; the outlet of the filtration system is connected to the outlet of the water purification system. as well as The controller is connected to the soft water system and the booster pipeline; When the outlet of the soft water system outputs hard water, the controller can control the water pressure in the booster pipeline to decrease in order to protect the filtration system.

2. The water purifier as described in claim 1, characterized in that, The pressurization pipeline includes: A booster water pipe, wherein the inlet of the booster water pipe is connected to the inlet of the booster pipeline, and the outlet of the booster water pipe is connected to the outlet of the booster pipeline; and A variable frequency booster pump is installed on the booster water pipe and connected to the controller; When the outlet of the soft water system outputs hard water, the controller can control the variable frequency booster pump to reduce its speed, thereby reducing the water pressure in the booster water pipe and protecting the filtration system.

3. The water purifier as described in claim 2, characterized in that, The filtration system includes: A pre-filter element, the inlet of which is connected to the inlet of the filtration system; the outlet of which is connected to the inlet of the booster water pipe; and The reverse osmosis filter element has its inlet connected to the outlet of the booster water pipe, and its outlet connected to the outlet of the filtration system.

4. The water purifier as described in claim 3, 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 wastewater.

5. The water purifier as described in claim 4, 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 A wastewater valve is installed on the wastewater drain pipe and connected to the controller; When the soft water system outputs hard water, the controller can control the wastewater valve to increase the wastewater discharge to protect the reverse osmosis filter element.

6. The water purifier as described in any one of claims 1 to 5, characterized in that, The soft water system includes a soft water valve, a resin tank, and a brine tank; The water softener valve is connected to the inlet and outlet of the water softener system, as well as to the resin tank and the salt tank, and is connected to the controller. Resin tanks are used to soften hard water into soft water. A salt tank for storing regenerated salt, which can enter the resin tank via the soft water valve to regenerate the resin in the resin tank; When the regeneration mode is activated, the controller controls the soft water valve to disconnect the resin tank from the outlet of the soft water system, and controls the soft water valve to connect the inlet and outlet of the soft water system, so that the outlet of the soft water system outputs hard water, and controls the water pressure in the booster pipeline to decrease in order to protect the filtration system. When the soft water mode is stopped, the controller controls the soft water valve to disconnect the resin tank from the outlet of the soft water system, and controls the soft water valve to connect the inlet and outlet of the soft water system, so that the outlet of the soft water system outputs hard water, and controls the water pressure in the booster pipeline to decrease in order to protect the filtration system.

7. The water purifier as described in any one of claims 1 to 5, characterized in that, The soft water system includes a soft water valve, a resin tank, a brine tank, and a soft water bypass pipeline; The water softener valve is connected to the inlet and outlet of the water softener system, as well as to the resin tank and the salt tank, and is connected to the controller. Resin tanks are used to soften hard water into soft water. A salt tank for storing regenerated salt, which can enter the resin tank via the soft water valve to regenerate the resin in the resin tank; A soft water bypass pipeline is connected to the inlet and outlet of the soft water system. When the regeneration mode is activated, the controller controls the soft water valve to disconnect the resin tank from the outlet of the soft water system, and controls the soft water bypass pipeline to open so that the inlet and outlet of the soft water system can be connected through the soft water bypass pipeline, so that the outlet of the soft water system outputs hard water, and controls the water pressure in the booster pipeline to decrease in order to protect the filtration system. When the soft water mode is stopped, the controller controls the soft water valve to disconnect the resin tank from the outlet of the soft water system, and controls the soft water bypass pipeline to open, so that the inlet and outlet of the soft water system can be connected through the soft water bypass pipeline, so that the outlet of the soft water system outputs hard water, and controls the water pressure in the booster pipeline to decrease, in order to protect the filtration system.

8. The water purifier as described in claim 7, characterized in that, The soft water bypass pipeline includes: A soft water bypass pipe connects the inlet and outlet of the soft water system; and A soft water bypass valve is installed on the soft water bypass pipe and connected to the controller; When the regeneration mode is activated, the controller controls the soft water valve to disconnect the resin tank from the outlet of the soft water system, and controls the soft water bypass valve to open so that the inlet and outlet of the soft water system can be connected through the soft water bypass pipe, so that the outlet of the soft water system outputs hard water, and controls the water pressure in the booster pipe to decrease in order to protect the filtration system. When the soft water mode is stopped, the controller controls the soft water valve to disconnect the resin tank from the outlet of the soft water system, and controls the soft water bypass valve to open so that the inlet and outlet of the soft water system can be connected through the soft water bypass pipe, so that the outlet of the soft water system outputs hard water, and controls the water pressure in the booster pipe to decrease in order to protect the filtration system.

9. The water purifier as described in claim 6, characterized in that, The soft water system also includes: A salt level sensor is installed in the salt tank and connected to the controller. The controller can obtain the detected salt level of the salt tank through the salt level sensor. Before the regeneration mode is activated, the controller obtains the detected salt level of the salt tank through the salt level sensor. When the detected salt level is lower than the preset salt level, the controller controls the soft water valve to disconnect the resin tank from the outlet of the soft water system, and controls the soft water valve to connect the inlet and outlet of the soft water system, so that the outlet of the soft water system outputs hard water, and controls the water pressure in the booster pipeline to decrease in order to protect the filtration system.

10. The water purifier as described in claim 6, characterized in that, Also includes: The housing assembly has an inner cavity, in which the soft water system, the water purification system, and the controller are all disposed; A faucet, connected to the housing assembly and in communication with the water purification system; and A water level sensor is installed in the inner cavity and connected to the controller. The controller can obtain the water level in the inner cavity through the water level sensor. Specifically, when the controller detects through the leakage water level sensor that the leakage water level in the inner cavity has reached a second preset water level, the controller controls the outlet of the soft water system to close.

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