Water purifier and bubble washing device thereof

Abstract

The present disclosure provides a water purifier and a bubble flushing device thereof, the water purifier comprising a water tank, the bubble flushing device comprising: a gas suction pump for sucking gas from a gas storage module and inputting into a water-gas mixing module; a first pressure detection module for detecting a first pressure value of the gas output by the gas storage module; a second pressure detection module for detecting a second pressure value of the gas input into the water-gas mixing module; a control unit for adjusting a current opening degree of the gas storage module according to the first pressure value, so that the second pressure value is within a preset range; and the water-gas mixing module for mixing the input gas with water, forming bubble water and inputting into a bubble water inlet to flush the water tank. The present disclosure stabilizes the pressure value of the bubble water input into the water tank of the water purifier by arranging two pressure detection modules, and can further flush the water tank to kill the bacterial colonies in the water tank, thereby ensuring the safety and health of the user's water, protecting the user's health and improving the user's experience.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of intelligent household appliances, in particular to a water purifier and a bubble washing device thereof. BACKGROUND

[0002] Currently, the water purifier with a water tank only sterilizes by UV (Ultra-Violet Ray) lamp irradiation for a long time, but this method cannot completely kill the bacteria in the water tank, cannot guarantee the safety and health of the user's water, brings hidden dangers to the user's health, and reduces the user's water experience. SUMMARY

[0003] The technical problem to be solved by the present disclosure is to overcome the defects in the prior art that only UV lamp irradiation for a long time is used to sterilize the water tank of the water purifier, cannot completely kill the bacteria in the water tank, cannot guarantee the safety and health of the user's water, brings hidden dangers to the user's health, and reduces the user's water experience, and to provide a water purifier and a bubble washing device thereof.

[0004] The present disclosure solves the above technical problems by the following technical solutions:

[0005] The present disclosure provides a bubble washing device of a water purifier, the water purifier comprising a water tank, the bubble washing device comprising a first pressure detection module, a second pressure detection module, a control unit, and a gas storage module, a gas suction pump and a water-gas mixing module connected in sequence;

[0006] The first pressure detection module is arranged between the gas storage module and the gas suction pump, and the second pressure detection module is arranged between the gas suction pump and the water-gas mixing module;

[0007] The water-gas mixing module is in communication with a bubble water inlet of the water tank;

[0008] The control unit is electrically connected with the first pressure detection module and the second pressure detection module, respectively;

[0009] The gas suction pump is used to extract gas from the gas storage module and input the gas into the water-gas mixing module;

[0010] The first pressure detection module is used to detect a first pressure value of the gas output by the gas storage module;

[0011] The second pressure detection module is used to detect a second pressure value of the gas input into the water-gas mixing module;

[0012] The control unit is used to adjust a current opening degree of the gas storage module according to the first pressure value, so that the second pressure value is within a preset range;

[0013] The water-gas mixing module is configured to mix the input gas with water to form bubble water and input the bubble water to the bubble water inlet to flush the water tank.

[0014] Preferably, the control unit is further configured to obtain an adjusted opening degree of the gas storage module according to the first pressure value by using a PID (Proportion Integral Differential) algorithm, and adjust the current opening degree of the gas storage module according to the adjusted opening degree until the second pressure value is within the preset range.

[0015] Preferably, the control unit is further configured to obtain an adjusted opening degree of the gas storage module according to the first pressure value by using a PID algorithm, and the corresponding calculation formula is as follows:

[0016] △U = a * (P0 - P1) + b * P0 + c * (P0 - d * P1 + P2);

[0017] wherein, the △U is configured to represent the adjusted opening degree of the gas storage module, P0 is configured to represent a first difference value between the current first pressure value of the gas output by the gas storage module and a preset pressure value, P1 is configured to represent a second difference value between the second pressure value corresponding to the last time of flushing the water tank and the preset pressure value, P2 is configured to represent a third difference value between the second pressure value corresponding to the second last time of flushing the water tank and the preset pressure value, and a, b, c and d are all constants.

[0018] The present disclosure further provides a water purifier, which comprises the bubble flushing device of the water purifier as described above.

[0019] Preferably, the water purifier comprises a first filtration module.

[0020] The first filtration module is in communication with a water inlet source and the water-gas mixing module, respectively.

[0021] The first filtration module is configured to filter the water inlet source and output filtered water to the water-gas mixing module.

[0022] Preferably, the water purifier further comprises a second filtration module.

[0023] The second filtration module comprises a filter core, a sandwich layer and a shell.

[0024] The filter core is arranged in the sandwich layer, and the sandwich layer is arranged in the shell.

[0025] The shell comprises a purified water inlet and a waste water inlet.

[0026] The clean water inlet is in communication with the first filtering module, and the waste water inlet is in communication with a waste water outlet of the water tank; wherein the waste water outlet is used for discharging the bubble water after the water tank is flushed;

[0027] The clean water inlet is used for inputting the water filtered by the first filtering module to the filter core for filtering treatment;

[0028] The waste water inlet is used for discharging the bubble water discharged by the waste water outlet through the space between the interlayer and the shell.

[0029] Preferably, the water purifier further comprises a first water quality detection module, a second water quality detection module, an adjustable waste water ratio electromagnetic valve and a control module;

[0030] The first water quality detection module is arranged on a first side of the second filtering module close to the first filtering module, and the second water quality detection module is arranged on a second side of the second filtering module away from the first filtering module;

[0031] The first water quality detection module is used for detecting a first mineral content of the water filtered by the first filtering module;

[0032] The second water quality detection module is used for detecting a second mineral content of the water filtered by the second filtering module;

[0033] The control module is used for adjusting the adjustable waste water ratio electromagnetic valve according to the first mineral content, so that the second mineral content is within a preset range.

[0034] Preferably, the water purifier further comprises a bacterial colony detection module and a sterilization module arranged in the water tank;

[0035] The bacterial colony detection module is used for detecting a bacterial colony value in the water tank;

[0036] The control module is further used for driving the sterilization module and / or the bubble flushing device to perform sterilization treatment on the water tank according to the bacterial colony value.

[0037] Preferably, the sterilization module comprises a UV sterilization assembly.

[0038] Preferably, the water purifier further comprises a weight detection module and a timing module;

[0039] The weight detection module is used for detecting an amount of water in the water tank;

[0040] The timing module is used for detecting a storage time length of the water in the water tank;

[0041] The control module is further configured to drive the sterilization module and / or the bubble flushing device to perform sterilization treatment on the water tank according to the water quantity and / or the storage duration.

[0042] On the basis of common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily to obtain preferred examples of the present disclosure.

[0043] The positive progress effect of the present disclosure is that:

[0044] The present disclosure stabilizes the pressure value of the bubble water input into the water tank of the water purifier by setting two pressure detection modules, and further can flush the water tank to kill the bacterial colonies in the water tank, thereby ensuring the safety and health of the user's water, protecting the user's health, and improving the user's water experience. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 A module schematic diagram of the bubble flushing device of the water purifier of Embodiment 1 of the present disclosure.

[0046] Figure 2 A structure schematic diagram of the bubble flushing device of the water purifier of Embodiment 4 of the present disclosure.

[0047] Figure 3 A structure schematic diagram of the second filtering module of the bubble flushing device of the water purifier of Embodiment 4 of the present disclosure. DETAILED DESCRIPTION

[0048] The present disclosure will be further described below by way of examples, but the present disclosure is not limited in the scope of the examples.

[0049] In the embodiments of the present disclosure, the prefix words such as "first", "second" are only used to distinguish different description objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. The use of ordinal words such as ordinal words in the embodiments of the present disclosure does not constitute a limitation on the described objects, and the description of the described objects in the claims or embodiments should not be construed as redundant limitations because of the use of such prefix words. In addition, in the description of the embodiments, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0050] In the embodiments of the present disclosure, the collection, storage, use, processing, transmission, provision and disclosure of user personal information involved in the present disclosure comply with the relevant legal regulations and do not violate public order and good customs.

[0051] Embodiment 1

[0052] The present embodiment provides a bubble flushing device of a water purifier, which includes a water tank, such as Figure 1As shown, the bubble flushing device comprises a first pressure detection module 11, a second pressure detection module 12, a control unit 13, and a gas storage module 14, a gas extraction pump 15 and a water-gas mixing module 16 connected in sequence;

[0053] The first pressure detection module 11 is arranged between the gas storage module 14 and the gas extraction pump 15, and the second pressure detection module 12 is arranged between the gas extraction pump 15 and the water-gas mixing module 16.

[0054] The water-gas mixing module 16 is connected with the bubble water inlet of the water tank.

[0055] The control unit 13 is electrically connected with the first pressure detection module 11 and the second pressure detection module 12, respectively.

[0056] The gas extraction pump 15 is used to extract gas from the gas storage module 14 and input into the water-gas mixing module 16.

[0057] The first pressure detection module 11 is used to detect the first pressure value of the gas output by the gas storage module 14.

[0058] The second pressure detection module 12 is used to detect the second pressure value of the gas input into the water-gas mixing module 16.

[0059] The control unit 13 is used to adjust the current opening degree of the gas storage module 14 according to the first pressure value, so that the second pressure value is within a preset range.

[0060] The water-gas mixing module 16 is used to mix the input gas with water, form bubble water and input into the bubble water inlet, so as to flush the water tank.

[0061] Specifically, air is stored in a gas storage module, for example, a gas cylinder, the gas cylinder port is connected with the gas extraction pump inlet, the gas extraction pump outlet is connected with the water-gas mixing module; the two inlets of the water-gas mixing module are respectively connected with the outlet of the filter core of the water purifier and the gas cylinder, and the outlet of the water-gas mixing module is connected with the bubble water inlet of the water tank. The first pressure detection module and the second pressure detection module are arranged before and after the gas extraction pump, and the two pressure detection modules are, for example, pressure detection gauges, which can detect the pressure value of the gas in the pipeline in real time, and the opening degree of the gas cylinder is adjusted by comparing the first pressure value with the preset pressure value, so as to ensure that the second pressure value of the bubble water can be maintained stable. Compared with ordinary water flushing, the bubble water can generate stronger impact force in the process of bubble explosion. The bubble flushing device is arranged to flush the water tank and keep the inside of the water tank clean.

[0062] The control unit can be a controller independently arranged in the water purifier, or can be used as the main controller of the water purifier, and can be designed according to actual conditions.

[0063] In the embodiment, the two pressure detection modules are arranged to stabilize the pressure value of the bubbly water input into the water tank of the water purifier, and the water tank can be further flushed to kill the bacterial colonies in the water tank, thereby ensuring the safety and health of the user's water, protecting the user's health, and improving the user's water experience.

[0064] Embodiment 2

[0065] The embodiment provides a bubbly flushing device of a water purifier, which is a further improvement of the embodiment 1.

[0066] In an implementable solution, the control unit 13 is further configured to obtain an adjusted opening degree of the gas storage module 14 according to the first pressure value by using a PID algorithm, and adjust the current opening degree of the gas storage module 14 according to the adjusted opening degree until the second pressure value is within the preset range.

[0067] The corresponding calculation formula of the adjusted opening degree of the gas storage module 14 obtained by the control unit 13 according to the first pressure value by using the PID algorithm is as follows:

[0068] △U=a*(P0–P1)+b*P0+c*(P0–d*P1+P2);

[0069] Wherein, △U is used to represent the adjusted opening degree of the gas storage module, P0 is used to represent the first difference value between the current first pressure value of the gas output by the gas storage module and the preset pressure value, P1 is used to represent the second difference value between the second pressure value corresponding to the last flushing of the water tank and the preset pressure value, P2 is used to represent the third difference value between the second pressure value corresponding to the last-but-one flushing of the water tank and the preset pressure value, a, b, c and d are all constants; the values of the four constants a, b, c and d can be obtained by experience and experiment, d can be 2, which is only an example, and other values can also be taken. The calculated △U can be the change value of the gas flux in the gas cylinder, and the adjusted opening degree of the gas storage module can be obtained by calibration table.

[0070] Specifically, the gas cylinder opening of the gas storage module, such as the gas cylinder, is opened, the first pressure value inside the gas cylinder is detected by the first pressure detection module, and the air intake state of the water-air mixing module is determined after comparing with the preset pressure value. The gas cylinder opening is adjusted based on the algorithm, the adjustable gas cylinder opening and the air content are associated, thereby adjusting the air content in the bubbly water, and whether the second pressure value meets the standard and is stable is judged by the second pressure detection module, so as to realize the control of the air intake.

[0071] The process of air intake control is as follows:

[0072] Determine the preset pressure value Pset according to the air intake demand, and adjust the gas cylinder opening to the minimum a;

[0073] Open the gas cylinder and detect the pressure value P0 of the gas cylinder opening;

[0074] determining whether P0 is greater than Pset;

[0075] if P0 is greater than Pset, adjusting the gas cylinder opening degree by using the formula △U=a*(P0-P1)+b*P0+c*(P0-d*P1+P2) through the incremental PID algorithm;

[0076] if P0 is not greater than Pset, storing the data P0 as reference data for subsequent air intake control;

[0077] obtaining a second pressure value through the second pressure detection module, and determining whether the second pressure value P3 is stable and consistent with the preset pressure value Pset;

[0078] if yes, storing the data P3 as reference data for next air intake control;

[0079] if no, returning to the step where P0 is greater than Pset.

[0080] In this scheme, the gas cylinder opening degree is adjusted based on the PID algorithm, which ensures the accurate control of the air intake of the water-air mixing module, ensures the stability of the pressure value of the bubble water in the water tank of the water purifier, and improves the reliability and effectiveness of using bubble water to flush the water tank.

[0081] In this embodiment, the pressure value of the bubble water input into the water tank of the water purifier is stabilized by setting two pressure detection modules, and the water tank can be flushed to kill the bacterial colonies in the water tank, ensuring the safety and hygiene of the user's water, protecting the user's health, and improving the user's water experience.

[0082] Embodiment 3

[0083] This embodiment provides a water purifier, which includes the bubble flushing device 1 of the water purifier of embodiment 1 or embodiment 2.

[0084] In this embodiment, by setting the bubble flushing device, reliable flushing of the water tank is realized, the cleanliness inside the water tank is maintained, the bacterial colony value in the water tank is reduced, the safety and hygiene of the user's water are ensured, and the intelligent degree and product performance of the water purifier are improved.

[0085] Embodiment 4

[0086] This embodiment provides a water purifier, which is a further improvement of embodiment 3.

[0087] In an implementable scheme, as shown in Figure 2 the water purifier includes a first filtration module 21;

[0088] The first filtration module 21 is in communication with a water inlet source and a water-air mixing module 16, respectively;

[0089] The first filtering module 21 is used for filtering the water source and outputting the filtered water to the water-air mixing module 16.

[0090] Specifically, the first filtering module 21 includes a pre-filtering filter element and a post-filtering filter element. The water inlet of the pre-filtering filter element is connected with a water source, such as tap water, through a water inlet electric valve 22, and the water outlet is connected with a booster pump 23. The water inlet of the booster pump 23 is connected with the pre-filtering filter element and a backwash water path respectively. The backwash water path includes an electromagnetic valve 24. The water outlet of the post-filtering filter element is connected with a water tank 25, a direct water outlet 26 and the water-air mixing module 16 respectively. The water tank 25 stores water to realize large-flow water outlet. The purified water flows out from the water tank outlet 28 through a direct pump 27. When the water in the water tank 25 is exhausted, small-flow water outlet is realized through the direct water outlet 26. An electromagnetic valve 24 is arranged as a check valve between the water outlet of the post-filtering filter element and the water tank 25, the direct water outlet 26 and the water-air mixing module 16 respectively, to prevent the water outlet of the post-filtering filter element from contacting the air and flowing back to the water path, thereby reducing the possibility of pollution.

[0091] In the scheme, the filtered water is input to the water-air mixing module through the first filtering module, which ensures the cleanliness and hygiene of the bubble water input to the water tank of the water purifier, and guarantees the reliability and effectiveness of the water tank being washed by the bubble water.

[0092] In an implementable scheme, the water purifier further includes a second filtering module 29.

[0093] As shown in the figure, the second filtering module 29 includes a filter element 291, a sandwich layer 292 and a shell 293. Figure 3

[0094] The filter element 291 is arranged in the sandwich layer 292, and the sandwich layer 292 is arranged in the shell 293.

[0095] The shell 293 includes a purified water inlet 2931 and a waste water inlet 2932.

[0096] The purified water inlet 2931 is in communication with the first filtering module 21, and the waste water inlet 2932 is in communication with a waste water outlet 251 of the water tank 25. The waste water outlet 251 is used for discharging the bubble water after washing the water tank 25.

[0097] The purified water inlet 2931 is used for inputting the water filtered by the first filtering module 21 to the filter element 291 for filtering treatment.

[0098] The waste water inlet 2932 is used for discharging the bubble water discharged from the waste water outlet 251 through the sandwich layer 292 and the shell 293.

[0099] Specifically, the second filtering module can adopt an NSP (nano chromatography) filter element, and the water outlet of the booster pump is connected with the NSP filter element.​

[0100] In addition, the shell 293 further comprises a waste water outlet 2933 and a purified water outlet 2934 for discharging waste water and purified water filtered by the filter element respectively.

[0101] In the scheme, a sandwich is arranged between the outer shell of the second filter module and the filter element, so that the bubble water after washing the water tank is not passed through the filter element, that is, is separated from the filter element, thereby reducing the influence of the bubble water discharged from the water tank on the cleanliness of the filter element.

[0102] In an implementable scheme, the water purifier further comprises a first water quality detection module 30, a second water quality detection module 31, an adjustable waste water ratio electromagnetic valve 32 and a control module 33.

[0103] The first water quality detection module 30 is arranged on the first side of the second filter module 29 close to the first filter module 21, and the second water quality detection module 31 is arranged on the second side of the second filter module 29 away from the first filter module 21.

[0104] The first water quality detection module 30 is used for detecting the first mineral content of the water filtered by the first filter module 21.

[0105] The second water quality detection module 31 is used for detecting the second mineral content of the water filtered by the second filter module 29.

[0106] The control module 33 is used for adjusting the adjustable waste water ratio electromagnetic valve 32 according to the first mineral content, so that the second mineral content is within a preset range.

[0107] Specifically, the control module is electrically connected with the first water quality detection module and the second water quality detection module respectively. The outlet of the booster pump is connected with the second filter module, and the first water quality detection module is arranged at the connection position, so that the first water quality detection module can monitor the mineral content of the inlet water in real time. One of the outlets of the second filter module is connected with the adjustable waste water ratio electromagnetic valve for adjusting the waste water flux, and the other outlet is connected with the rear filter element, and the second water quality detection module is arranged at the connection position, so that the second water quality detection module can monitor the mineral content of the water filtered by the second filter module in real time. The booster pump is opened, the first mineral content of the inlet water detected by the first water quality detection module is compared with the preset mineral content to determine the opening state of the adjustable waste water ratio electromagnetic valve, the adjustable waste water ratio flux is adjusted based on the algorithm, the opening of the adjustable waste water ratio electromagnetic valve and the mineral content are associated, so as to adjust the second mineral content of the water filtered by the second filter module, and the second water quality detection module is used to judge whether the second mineral content meets the standard and is stable, so as to realize the adjustment and control of the mineral content of the inlet water.

[0108] The control module can be a main controller in the water purifier, and includes a control unit in a bubble flushing device of the water purifier.

[0109] The control module is configured to obtain an adjustment opening of the adjustable waste water ratio electromagnetic valve according to the first mineral content by using a PID algorithm, and adjust a current opening of the adjustable waste water ratio electromagnetic valve according to the adjustment opening until the second mineral content is within a preset range.

[0110] The control module is configured to obtain an adjustment opening of the adjustable waste water ratio electromagnetic valve according to the first mineral content by using a PID algorithm, and adjust a current opening of the adjustable waste water ratio electromagnetic valve according to the adjustment opening until the second mineral content is within a preset range.

[0111] △V=e*(Q0–Q1)+f*Q0+g*(Q0–h*Q1+Q2);

[0112] Wherein, △V is used to represent the adjustment opening of the adjustable waste water ratio electromagnetic valve, Q0 is used to represent a first content difference value between the current first mineral content detected by the first water quality detection module and the preset mineral content, Q1 is used to represent a second content difference value between the second mineral content of the filtered water detected by the second filter module last time and the preset mineral content, Q2 is used to represent a third content difference value between the second mineral content of the filtered water detected by the second filter module two times ago and the preset mineral content, e, f, g and h are all constants; the values of the four constants e, f, g and h can be obtained through experience and experiment, h can be 2, which is only an example, and other values can also be taken. The calculated △V can be specifically a change value of the adjustable waste water ratio flux, and the adjustment opening of the adjustable waste water ratio electromagnetic valve can be obtained through a calibration table.

[0113] The process of mineral content control is as follows:

[0114] According to the mineral demand, the preset mineral content Qset is determined, and the opening of the adjustable waste water ratio electromagnetic valve is adjusted to the minimum β;

[0115] The booster pump is turned on, and the first mineral content Q0 of the purified water is detected.

[0116] It is judged whether Q0 is greater than Qset;

[0117] If Q0 is greater than Qset, the opening of the adjustable waste water ratio electromagnetic valve is adjusted by using the formula △V=e*(Q0–Q1)+f*Q0+g*(Q0–h*Q1+Q2) through the incremental PID algorithm.

[0118] If Q0 is not greater than Qset, the data Q0 is stored as reference data for subsequent water mineral content control.

[0119] The second mineral content is obtained by the second water quality detection module, and it is judged whether the second mineral content Q3 is stable and consistent with the preset mineral content Qset;

[0120] If yes, the data Q3 is stored as the reference data for the next time water mineral content control;

[0121] If no, the step in which Q0 is greater than Qset is returned.

[0122] In the scheme, the opening of the adjustable wastewater ratio electromagnetic valve is adjusted based on the PID algorithm, the accurate adjustment and control of the mineral content of the water filtered by the NSP filter core are ensured, the stability of the water mineral content of the water purifier is ensured, the water quality is improved, and the reliability and effectiveness of the NSP filter core in filtering the water source are improved.

[0123] In an implementable scheme, the water purifier further comprises a colony detection module 34 and a sterilization module 35 arranged in the water tank 25;

[0124] The colony detection module 34 is used to detect the colony value in the water tank 25;

[0125] The control module 33 is further used to drive the sterilization module 35 and / or the bubble flushing device 1 to perform sterilization treatment on the water tank 25 according to the colony value.

[0126] Specifically, the colony detection module and the sterilization module are electrically connected with the control module, the colony detection module comprises a colony detector, and the sterilization module comprises a UV sterilization assembly. A first colony threshold value and a second colony threshold value that is greater than the first colony threshold value are set in the water tank. When the actual colony value detected by the colony detector is greater than the first colony threshold value, the UV lamp assembly is turned on to irradiate until the actual colony value of the water tank returns to a normal level; when the actual colony value detected by the colony detector is higher than the second colony threshold value, the electromagnetic valve is turned on to drain the water in the water tank, the UV lamp assembly is turned on for sterilization, and is turned off after a specified time, and then the waterway is flushed by the bubble flushing device to ensure that the colony value in the waterway is within the control range.

[0127] In the scheme, the colony detection module is arranged to detect the colony value in the water tank, so that the control module drives the sterilization module and the bubble flushing device to perform sterilization treatment on the water tank according to the colony value, thereby ensuring that the colony in the water tank and the waterway is within the preset range and ensuring the cleanliness of the water tank and the waterway.

[0128] In an implementable scheme, the water purifier further comprises a weight detection module 36 and a timing module 37;

[0129] The weight detection module 36 is used to detect the water amount in the water tank 25;

[0130] The timing module 37 is configured to detect the storage time of the water in the water tank 25.

[0131] The control module 33 is further configured to drive the sterilization module 35 and / or the bubble flushing device 1 to perform sterilization treatment on the water tank 25 according to the water amount and / or the storage time.

[0132] Specifically, the weight detection module and the timing module are electrically connected with the control module, the weight detection module comprises a gravity detection meter arranged at the bottom of the water tank, and the timing module comprises a timer. The storage time H of the maximum acceptable specified weight water W in the water tank is set; when the water amount W of the water tank is less than or equal to half of the capacity of the water tank, the timer is timed for 12h<=H<=24h, the UV lamp assembly is turned on to irradiate; when the water amount W of the water tank is greater than half of the capacity of the water tank, the timer is timed for 12h<=H<=24h, the electromagnetic valve is turned on to discharge the water in the water tank from the backflow water path, the water is filtered again, the UV lamp is turned on to irradiate again, and the colony value in the water path is ensured to be within a control range; when H>48h, the water amount of the water tank is no longer judged, and the bubble flushing device is directly turned on to generate bubble water, the bubble water is used to perform strong flushing on the water tank by using the bursting force of the bubble water, and the UV lamp is turned on to perform sterilization after the bubble water is flushed, and the waste water is discharged from the flushing waste water discharge path. The 12h, 24h and 48h are only examples and can be set or adjusted according to actual needs.

[0133] In the scheme, the weight detection module is arranged to detect the water amount in the water tank, and the timing module is arranged to detect the storage time of the water in the water tank, so that the control module drives the sterilization module and the bubble flushing device to perform sterilization treatment on the water tank according to the water amount and the storage time, the colony in the water tank and the water path is ensured to be within a preset range, and the cleanliness of the water tank and the water path is ensured.

[0134] In the embodiment, the bubble flushing device, the filtering module, the water quality detection module, the colony detection module, the weight detection module and the timing module are arranged to realize reliable filtering, flushing and sterilization treatment of the water tank, maintain the cleanliness of the water tank, reduce the colony value in the water tank and the water, ensure the safety and health of the water used by the user, and improve the intelligent degree and product performance of the water purifier.

[0135] Although the specific embodiments of the present disclosure are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the present disclosure, and these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. A bubble washing device for a water purifier, characterized by, The water purifier comprises a water tank, the bubble flushing device comprises a first pressure detection module, a second pressure detection module, a control unit, and a gas storage module, a gas extraction pump and a water-gas mixing module which are sequentially communicated; The first pressure detection module is arranged between the gas storage module and the gas extraction pump, and the second pressure detection module is arranged between the gas extraction pump and the water-gas mixing module; The water-gas mixing module is communicated with a bubble water inlet of the water tank; The control unit is electrically connected with the first pressure detection module and the second pressure detection module respectively; The gas extraction pump is used for extracting gas from the gas storage module and inputting the gas into the water-gas mixing module; The first pressure detection module is used for detecting a first pressure value of the gas output by the gas storage module; The second pressure detection module is used for detecting a second pressure value of the gas input into the water-gas mixing module; The control unit is used for adjusting a current opening degree of the gas storage module according to the first pressure value, so that the second pressure value is within a preset range; The water-gas mixing module is used for mixing the input gas with water, forming bubble water and inputting the bubble water into the bubble water inlet, so as to flush the water tank.

2. The air bubble washing device of the water purifier according to claim 1, wherein, The control unit is also used for obtaining an adjustment opening degree of the gas storage module according to the first pressure value by using a PID algorithm, and adjusting the current opening degree of the gas storage module according to the adjustment opening degree, until the second pressure value is within the preset range.

3. The bubble washing device of the water purifier according to claim 2, wherein The control unit is also used for obtaining an adjustment opening degree of the gas storage module according to the first pressure value by using a PID algorithm, and adjusting the current opening degree of the gas storage module according to the adjustment opening degree, until the second pressure value is within the preset range. The control unit is also used for obtaining an adjustment opening degree of the gas storage module according to the first pressure value by using a PID algorithm, and adjusting the current opening degree of the gas storage module according to the adjustment opening degree, until the second pressure value is within the preset range. The control unit is also used for obtaining an adjustment opening degree of the gas storage module according to the first pressure value by using a PID algorithm, and adjusting the current opening degree of the gas storage module according to the adjustment opening degree, until the second pressure value is within the preset range.

4. A water purifier characterized by comprising: The control unit is also used for obtaining an adjustment opening degree of the gas storage module according to the first pressure value by using a PID algorithm, and adjusting the current opening degree of the gas storage module according to the adjustment opening degree, until the second pressure value is within the preset range.

5. The water purifier of claim 4, wherein The control unit is also used for obtaining an adjustment opening degree of the gas storage module according to the first pressure value by using a PID algorithm, and adjusting the current opening degree of the gas storage module according to the adjustment opening degree, until the second pressure value is within the preset range. The water purifier comprises the bubble flushing device of the water purifier according to any one of claims 1-3. The water purifier comprises a first filter module; 6. The water purifier of claim 5, wherein The first filter module is communicated with a water inlet source and the water-gas mixing module respectively; The first filter module is used for filtering the water inlet source and outputting filtered water into the water-gas mixing module. The water purifier further comprises a second filter module; The second filter module comprises a filter core, a sandwich layer and a shell; The filter core is arranged in the sandwich layer, and the sandwich layer is arranged in the shell; The shell comprises a purified water inlet and a waste water inlet; The purified water inlet is communicated with the first filter module, and the waste water inlet is communicated with a waste water outlet of the water tank; wherein the waste water outlet is used for discharging the bubble water after flushing the water tank. The purified water inlet is configured to input the water filtered by the first filter module to the filter element for filtration. The waste water inlet is configured to discharge the bubble water discharged from the waste water outlet through the space between the interlayer and the shell.

7. The water purifier of claim 6, wherein The water purifier further comprises a first water quality detection module, a second water quality detection module, an adjustable waste water ratio electromagnetic valve, and a control module. The first water quality detection module is arranged on a first side of the second filter module close to the first filter module, and the second water quality detection module is arranged on a second side of the second filter module away from the first filter module. The first water quality detection module is configured to detect a first mineral content of the water filtered by the first filter module. The second water quality detection module is configured to detect a second mineral content of the water filtered by the second filter module. The control module is configured to adjust the adjustable waste water ratio electromagnetic valve according to the first mineral content, so that the second mineral content is within a preset range.

8. The water purifier of claim 7, wherein The water purifier further comprises a bacterial colony detection module and a sterilization module arranged in the water tank. The bacterial colony detection module is configured to detect a bacterial colony value in the water tank. The control module is further configured to drive the sterilization module and / or the bubble flushing device to perform sterilization treatment on the water tank according to the bacterial colony value.

9. The water purifier of claim 8, wherein The sterilization module comprises a UV sterilization assembly.

10. The water purifier according to claim 8 or 9, wherein The water purifier further comprises a weight detection module and a timing module. The weight detection module is configured to detect a water amount in the water tank. The timing module is configured to detect a storage time length of the water in the water tank. The control module is further configured to drive the sterilization module and / or the bubble flushing device to perform sterilization treatment on the water tank according to the water amount and / or the storage time length.

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