Water purifier

Abstract

The utility model provides a water purifier. The water purifier comprises a filter element assembly, a shell, a conductivity sensor and a turbidity sensor, the filter element assembly is arranged in the shell, and a filter cavity is formed between the filter element assembly and the shell; the shell is provided with a water inlet and a water outlet, the water inlet is communicated with the filter chamber, a filter inlet of the filter element assembly is communicated with the filter chamber, and a filter outlet of the filter element assembly is communicated with the water outlet; the conductivity sensor is arranged at the water inlet, the turbidity sensor is arranged on the shell or the filter element assembly, and the detection end of the turbidity sensor is used for detecting the quality of raw water in the filter cavity. According to the utility model, through dual monitoring of the conductivity sensor and the turbidity sensor, the attenuation slope is obtained by fitting conductivity and turbidity data, and the attenuation slope is compared with a filter element service life attenuation slope database, so that the service life of the filter element can be predicted more accurately.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water purifier technical field, concretely relates to a water purifier. BACKGROUND

[0002] At present, the main water source in most areas is surface water, which is treated by waterworks and then put into the water pipe network of residents. However, surface water is easily polluted by river sand and the like, and cannot be completely settled in waterworks. When residents use it in kitchen and bathroom, they often find that tap water appears yellow water and the like.

[0003] With the pursuit of healthy life and the increasing concern about water quality safety, household water purifiers have become essential appliances for many families. However, traditional reverse osmosis water purifiers often need a large space to be assembled under the cabinet, and most of the use scenarios do not need filtered pure water. In addition, most water purifiers have the problem of not timely replacement or excessive replacement of filter cartridges, which not only affects the water purification effect, but also may cause resource waste. In order to solve the above problems, a miniature water purifier emerges as the times require, which is small and convenient in structure. However, the existing miniature water purifier cannot intuitively let users understand the service life of the filter cartridge, so that users cannot accurately grasp the replacement time of the filter cartridge. The conventional filter cartridge life judgment means is only to detect water hardness by using an electrical conductivity sensor, but it has the problem that the detection data is single and cannot reliably represent the actual use environment. For example, in low-hardness water quality areas, the filter cartridge life expires quickly, and the life reminder is not timely, which causes user complaints. After actual investigation in multiple areas, it is found that the water quality hardness is low, but the turbidity in the water is high, such as colloidal and suspended substances in the water, which adhere to the surface of the filter cartridge and cause pollution and blockage. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a kind of water purifier, can solve the technical problem that the existing miniature water purifier only judges filter cartridge life by electrical conductivity value, detection data is single, cannot reliably represent the actual use environment, so that users cannot accurately grasp the replacement time of filter cartridge.

[0005] The utility model provides a kind of water purifier, which comprises a filter cartridge assembly, a shell, an electrical conductivity sensor and a turbidity sensor.

[0006] The filter cartridge assembly is arranged in the shell, and a filter chamber is formed between the filter cartridge assembly and the shell. The shell has a water inlet and a water outlet. The water inlet is communicated with the filter chamber, the filter inlet of the filter cartridge assembly is communicated with the filter chamber, and the filter outlet of the filter cartridge assembly is communicated with the water outlet.

[0007] The conductivity sensor is arranged at the water inlet, and the turbidity sensor is arranged on the shell or the filter core assembly, and a detection end of the turbidity sensor is used for detecting raw water quality in the filtering chamber.

[0008] In some embodiments, a flow sensor is arranged in the water outlet, and an inlet end of the flow sensor is connected with a filtering outlet of the filter core assembly.

[0009] In some embodiments, a fixing assembly is further arranged in the water outlet, and the fixing assembly comprises a fixing member, and the flow sensor is embedded in the fixing member.

[0010] In some embodiments, the flow sensor is a split flow sensor, and the flow sensor comprises an impeller and a sensing module, the impeller is rotatably arranged in the fixing member, an inlet end of the impeller is connected with the filtering outlet of the filter core assembly, and the sensing module is arranged on the shell and is used for detecting rotation of the impeller.

[0011] In some embodiments, the fixing member comprises a first sleeve and a second sleeve, adjacent ends of the first sleeve and the second sleeve are respectively provided with a stopper, an opposite end of the first sleeve is provided with a first shaft sleeve, an opposite end of the second sleeve is provided with a second shaft sleeve, the impeller is provided with a rotating shaft, and both ends of the rotating shaft are respectively inserted into the first shaft sleeve and the second shaft sleeve.

[0012] In some embodiments, the filtering outlet of the filter core assembly is arranged opposite to the water outlet, the fixing assembly further comprises a guide ring and a plurality of guide ribs, the plurality of guide ribs are arranged at intervals along a circumferential direction of the fixing member, one end of the guide rib is connected with the fixing member, and the other end of the guide rib is connected with the guide ring, one end face of the guide ring is abutted against an inner wall of the water outlet or an outer circumferential wall of the guide ring is abutted against the inner wall of the water outlet, and the other end face of the guide ring is abutted against an outer wall of the filter core assembly.

[0013] In some embodiments, the water inlet comprises a first flow channel and a second flow channel which are in communication with each other, one end of the first flow channel away from the second flow channel is connected with a fitting joint, a detection end of the conductivity sensor extends into the first flow channel, one end of the second flow channel away from the first flow channel is in communication with the filtering chamber, and a cross-sectional area of the second flow channel is smaller than that of the first flow channel.

[0014] In some embodiments, the water purifier further comprises a controller, the conductivity sensor is in electrical connection with the controller, the shell is vertically arranged, the controller is embedded in the top of the shell, the turbidity sensor is arranged on the top of the shell, and the connecting end of the turbidity sensor is in electrical connection with the controller.

[0015] In some embodiments, the water purifier further comprises a display screen arranged on the outer wall of the shell, and the display screen is in electrical connection with the controller.

[0016] In some embodiments, the shell is provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the turbidity sensor is in sealing connection with the sealing groove through the sealing ring.

[0017] The water purifier has the following beneficial effects:

[0018] The conductivity sensor and the turbidity sensor are used for double monitoring, so that the water quality can be more comprehensively evaluated, the conductivity sensor can detect the mineral content in the water, the turbidity sensor can detect the content of particulate matters such as suspended matters and colloids in the water, the double monitoring can more accurately reflect the real condition of the raw water quality, the attenuation slope is obtained by fitting the data of the conductivity and the turbidity, and the service life attenuation slope database is compared, so that the service life of the filter element can be more accurately predicted, the resource waste caused by the replacement of the filter element too early can be avoided, and it can be ensured that the filter element will not fail after being used for too long time, so that the safety of the water quality is ensured, the filter element life value is displayed on the water purifier, the user can intuitively understand the use condition of the filter element, the filter element can be replaced in time, and the user experience is improved. Moreover, the conductivity and the turbidity are considered, and the water purifier can adapt to the water quality characteristics in different regions, and can effectively filter and monitor the water with high hardness or low hardness but high turbidity. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creating creative labor.

[0020] Figure 1 It is a schematic view of the water purifier of the utility model embodiment;

[0021] Figure 2 It is a schematic view of the shell and filter core assembly of the utility model embodiment;

[0022] Figure 3 It is a schematic view of the fixed assembly of the utility model embodiment;

[0023] Figure 4 It is a schematic view of the display screen of the utility model embodiment;

[0024] Figure 5 It is a schematic view of the sealing groove of the utility model embodiment;

[0025] Figure 6 It is a schematic view of the first flow channel and the second flow channel of the utility model embodiment;

[0026] Figure 7 It is a structural schematic view of the fixing piece of the utility model embodiment.

[0027] The drawings: 1-filter core assembly; 101-inner shell; 102-filter core; 2-shell; 201-filtering chamber; 202-water inlet; 221-first flow channel; 222-second flow channel; 203-water outlet; 204-sealing groove; 3-electrical conductivity sensor; 4-turbidity sensor; 5-flow sensor; 501-impeller; 601-fixing piece; 611-first sleeve; 612-second sleeve; 602-guide ring; 603-guide rib; 7-assembly joint; 8-controller; 9-display screen. DETAILED DESCRIPTION

[0028] The technical scheme in the utility model embodiments will be described clearly and completely in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] In the description of the utility model, it is understood that the orientation words such as “front, back, up, down, left, right”, “transverse, vertical, perpendicular, horizontal” and “top, bottom” and the like indicated orientation or position relationship is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the protection scope of the utility model; the orientation words “inner, outer” refer to the inner and outer of the contour of each component itself.

[0030] For the purposes of this description, spatially relative terms such as "beneath", "below", "lower", "above", "upper" and the like can be used to describe one element's or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0031] In addition, it should be noted that the use of "first", "second", and the like words of similar meaning in connection with describing elements or components is merely intended to distinguish a different component from another and is not intended to limit the scope of protection of the present application, unless otherwise stated.

[0032] In combination with reference to Figure 1 As shown in the drawings, according to the embodiments of the present application, a water purifier is provided, which comprises a filter element assembly 1, a shell 2, an electric conductivity sensor 3, and a turbidity sensor 4. The filter element assembly 1 is arranged in the shell 2, and a filter chamber 201 is formed between the filter element assembly 1 and the shell 2. The shell 2 has a water inlet 202 and a water outlet 203. The water inlet 202 is in communication with the filter chamber 201, the filter inlet of the filter element assembly 1 is in communication with the filter chamber 201, and the filter outlet of the filter element assembly 1 is in communication with the water outlet 203. The electric conductivity sensor 3 is arranged at the water inlet 202, and the turbidity sensor 4 is arranged on the shell 2 or on the filter element assembly 1. The detection end of the turbidity sensor 4 is used to detect the raw water quality in the filter chamber 201.

[0033] Specifically, when the water inlet 202 is filled with water, the conductivity sensor 3 detects the raw water flowing through the water inlet 202 to obtain the conductivity value of the raw water, the raw water flows from the water inlet 202 into the filter chamber 201, the detection end of the turbidity sensor 4 is located in the filter chamber 201 and contacts the raw water in the filter chamber 201, and the turbidity sensor 4 can detect the turbidity value of the raw water. The raw water flowing into the filter chamber 201 flows into the filter core assembly 1 for filtration, and the filtered water flows from the filter outlet of the filter core assembly 1 into the water outlet 203. The data detected by the conductivity sensor 3 and the turbidity sensor 4 are fitted to obtain an attenuation slope, and the water purifier is provided with a filter core 102 life attenuation slope database, and the attenuation slope in the database corresponds to the life of the filter core 102. By comparing the fitted attenuation slope with the attenuation slope in the database, the corresponding filter core 102 life value is obtained and displayed on the water purifier.

[0034] In the embodiment, through the double monitoring of the conductivity sensor 3 and the turbidity sensor 4, the water quality can be more comprehensively evaluated, the conductivity sensor 3 can detect the mineral content in the water, and the turbidity sensor 4 can detect the content of particulate matter such as suspended matter and colloid in the water. This double monitoring can more accurately reflect the true condition of the raw water quality, and by fitting the conductivity and turbidity data to obtain an attenuation slope and comparing it with the filter core 102 life attenuation slope database, the service life of the filter core 102 can be more accurately predicted. By accurately predicting the service life of the filter core 102, resource waste caused by replacing the filter core 102 too early can be avoided, and the filter core 102 can also be ensured not to fail after being used for too long, thereby ensuring the safety of the water quality. The filter core 102 life value displayed on the water purifier enables the user to intuitively understand the use of the filter core 102 and replace the filter core 102 in time, thereby improving the user experience. Moreover, since the conductivity and turbidity parameters are considered, the water purifier of the embodiment can adapt to the water quality characteristics of different regions, and can effectively filter and monitor both high-hardness water and low-hardness but high-turbidity water. The miniature water purifier with visual filter core 102 life display can be applied to various families and small office places, and is especially suitable for users who have high requirements for water quality but want a small and easy-to-operate device. Whether it is installed in the kitchen for daily drinking water purification or placed in the office for employees to use, it can meet the water purification needs in different scenes and provide healthy and safe drinking water for users.

[0035] It is worth mentioning that in the present embodiment, the conductivity sensor 3 is used to detect the hardness of raw water, and the hardness of water mainly refers to the concentration of calcium and magnesium ions in water. Since these ions can conduct electricity, the presence of these ions will affect the conductivity of water. The conductivity sensor 3 measures the conductivity of water. By analyzing the change of conductivity, the hardness of water can be calculated. The turbidity sensor 4 measures the turbidity of water quality by using the scattering and absorption of light in water. When a beam of light passes through the water sample, it will be scattered and absorbed by the suspended particles in the water sample, resulting in a decrease in light intensity. This decrease in light intensity is proportional to the concentration of suspended particles in the water sample. The filter core 102 life attenuation slope can reflect the speed of performance degradation of the filter core 102. The greater the slope, the faster the performance of the filter core 102 decays; the smaller the slope, the slower the performance decays.

[0036] As a specific embodiment, the filter core assembly 1 includes an inner shell 101 and a filter core 102 arranged in the inner shell 101. The inner shell 101 is provided with a filter inlet and a filter outlet. Raw water flows into the filter inlet and flows out of the filter outlet after being filtered. The inner shell 101 and the outer shell 2 form a filter chamber 201. A plurality of filter inlets are arranged on the peripheral wall of the inner shell 101 to allow water to flow in from multiple directions.

[0037] For reference Figures 1 to 6 As shown in the figure, the water outlet 203 is provided with a flow sensor 5, and the inlet end of the flow sensor 5 is connected with the filter outlet of the filter core assembly 1.

[0038] Specifically, the raw water flowing into the filter chamber 201 flows into the filter core assembly 1 for filtration, and the filtered water flows into the flow sensor 5 from the filter outlet of the filter core assembly 1, and the flow sensor 5 measures the filtered water. The data detected by the conductivity sensor 3, the turbidity sensor 4 and the flow sensor 5 are fitted, and by comparing the attenuation slope obtained by fitting the detected data with the attenuation slope in the database, the corresponding filter core 102 life value is obtained and displayed on the water purifier.

[0039] In the present embodiment, the real-time water flow collected by the flow sensor 5 at the position of the water outlet 203 is also used to further calibrate the service life attenuation slope of the filter core 102, so as to provide accurate data support for the use of the filter core 102. Combined with the data detected by the conductivity sensor 3 and the turbidity sensor 4, the filtering effect of the filter core 102 can be comprehensively evaluated. By data fitting, the attenuation slope of the filter core 102 is calculated. By comparing the attenuation slope with the standard attenuation slope in the database, the remaining life of the filter core 102 can be predicted. The life value of the filter core 102 is displayed in real time on the water purifier, which provides intuitive replacement prompt for the user, and helps the user to replace the filter core 102 in time, so as to ensure the safety and purification effect of water quality.

[0040] For referenceFigures 1 to 3 As shown in the drawings, the water outlet 203 is also provided with a fixing assembly, which comprises a fixing member 601, and the flow sensor 5 is embedded in the fixing member 601.

[0041] In this embodiment, in order to better fix the flow sensor 5, the fixing member 601 is arranged in the water outlet 203 when water flows through the flow sensor 5. The fixing member 601 fixes the flow sensor 5 and provides a stable mounting platform for the flow sensor 5, so as to ensure that the sensor will not be displaced due to vibration or water pressure change during use, thereby ensuring the stability and accuracy of the measurement data. The fixing member 601 can also reduce the disturbance of water flow to the sensor and ensure the accuracy of the flow sensor 5 during measurement, especially under high-speed or turbulent flow conditions.

[0042] As a specific implementation, the filter element assembly 1 is vertically arranged in the outer shell 2, the bottom end of the outer shell 2 is provided with a water outlet 203, the top end of the inner shell 101 is located in the outer shell 2, and the bottom end of the inner shell 101 is threadedly connected with the outer shell 2, and a sealing ring is arranged at the connection position.

[0043] For reference, Figure 1 and Figure 7 As shown in the drawings, the flow sensor 5 is a split flow sensor, which comprises an impeller 501 and a sensing module. The impeller 501 is rotatably arranged in the fixing member 601, and the inlet end of the impeller 501 is connected with the filter outlet of the filter element assembly 1. The sensing module is arranged on the outer shell 2 and is used for detecting the rotation of the impeller 501.

[0044] In this embodiment, when water flows to the impeller 501, the kinetic energy of the water drives the impeller 501 to rotate. The whole composed of the impeller 501 and the sensing module, wherein the sensing module is a Hall element module, and the rotor is a magnetic rotor. Thus, the Hall element module detects the rotating magnetic field of different magnetic poles of the magnetic rotor, cuts the magnetic force lines, generates high-low pulse level output to the controller, and then the controller 8 judges and calculates the size of the flow. The relative position between the Hall element module and the impeller 501, that is, the Hall element module is arranged in the side wall of the outer shell 2, and the distance between the cross-sectional center of the impeller 501 and the cross-sectional center of the Hall element module is generally about 0-8mm. The specific size is determined by the selected split flow sensor, which can ensure the accuracy of the signal.

[0045] For reference, Figure 7As shown, the fixing member 601 includes a first sleeve 611 and a second sleeve 612, which are detachably connected, and the first sleeve 611 and the second sleeve 612 are respectively provided with a flange at one end adjacent to each other, so that the first sleeve 611 and the second sleeve are inserted into each other through the flange to realize detachable connection. The first sleeve 611 is provided with a first shaft sleeve at the center, and the second sleeve 612 is provided with a second shaft sleeve at the center. As a magnetic rotor of the impeller 501, a rotating shaft is arranged, and the two ends of the rotating shaft are respectively inserted into the first shaft sleeve and the second shaft sleeve; with the insertion of the first sleeve 611 and the second sleeve 612 into each other, the impeller 501 is rotationally connected in the rotor shell, and the assembly of the impeller 501 is completed.

[0046] It is worth noting that although the shaft sleeve is arranged in the sleeve, it does not affect the flow of water, and the first sleeve 611 can be connected with the filter outlet, and the second sleeve 612 can also be connected with the filter outlet.

[0047] For reference Figures 1 to 3 As shown, the filter outlet of the filter element assembly 1 is arranged opposite to the water outlet 203, and the fixing assembly further includes a guide ring 602 and a plurality of guide ribs 603, which are arranged along the circumference of the fixing member 601 at intervals, one end of the guide rib 603 is connected with the fixing member 601, and the other end of the guide rib 603 is connected with the guide ring 602, one end face of the guide ring 602 abuts against or the outer peripheral wall of the guide ring 602 abuts against the inner wall of the water outlet 203, and the other end face of the guide ring 602 abuts against the outer wall of the filter element assembly 1.

[0048] Specifically, the impeller 501 is installed in the fixing member 601, and when the inner shell 101 is threadedly connected with the outer shell 2, the inner shell 101 presses the guide ring 602, and the inner shell 101 further presses and fixes the sensor, and directly collides with the sensor through the filter element 102 water outlet 203 to ensure smooth flow, avoiding the interference of cavity turbulence on detection.

[0049] In this embodiment, the guide ribs 603 are arranged along the circumference of the fixing member 601 at intervals, one end is connected with the fixing member 601, and the other end is connected with the guide ring 602, which can provide additional support and stability to ensure the stability and reliability of the filter element assembly 1 during installation and use. Moreover, the arrangement of the guide ring 602 and the guide rib 603 helps to ensure the coaxiality between the filter element assembly 1 and the water outlet 203, i.e. to ensure that the center lines of the two are on the same straight line, which can avoid the problems of difficult assembly or water leakage caused by deviation of coaxiality.

[0050] As a specific embodiment, the guide ribs 603 are arranged upwardly inclined, the diameter of the guide ring 602 is larger than the diameter of the fixing member 601, forming an upper large and lower small structure, which is more convenient for the inner shell 101 to press the flow sensor 5 tightly in the water outlet 203.

[0051] Referring to Figures 1 to 6 As shown, the water inlet 202 includes a first flow channel 221 and a second flow channel 222 which are in communication with each other, one end of the first flow channel 221 away from the second flow channel 222 is connected with the assembly joint 7, the detection end of the conductivity sensor 3 extends into the first flow channel 221, one end of the second flow channel 222 away from the first flow channel 221 is in communication with the filter chamber 201, and the cross-sectional area of the second flow channel 222 is smaller than that of the first flow channel 221.

[0052] Specifically, the assembly joint 7 is opened, the water in the faucet flows into the water inlet 202, the water first flows into the first flow channel 221, the conductivity sensor 3 detects the conductivity of the raw water, and the raw water then flows into the second flow channel 222 and then flows into the filter chamber 201.

[0053] In the embodiment, by arranging the first flow channel 221 and the second flow channel 222, a channel for inserting the conductivity sensor 3 is arranged on the wall of the water inlet 202, the channel requires that the probe of the conductivity sensor 3 is completely immersed in water, while avoiding that the too fast flow rate leads to insensitive measurement data, the sensor needs to be in contact with water for a certain time to feedback data, and the too fast flow rate will lead to untimely data transmission and cause inaccuracy. Therefore, the cross-sectional area of the second flow channel 222 is smaller than that of the first flow channel 221, and is preferably more than half of the cross-sectional area of the first flow channel 221, so as to ensure that the water forms a retention in the first flow channel 221 and to ensure that the conductivity sensor 3 can fully detect and transmit data. Moreover, due to the small cross-sectional area of the second flow channel 222, the water flow rate in the channel is fast, which is helpful for the water to flow into the filter chamber 201.

[0054] As a specific embodiment, the water inlet 202 is arranged on the bottom side wall of the outer shell 2, but after the water flows into the water inlet 202, the raw water is arranged to flow into the outer shell 2 from the top, so as to ensure that there is enough water in the filter chamber 201 for filtration.

[0055] Referring to Figures 1 to 6 As shown, the water purifier further includes a controller 8, the conductivity sensor 3 is electrically connected with the controller 8, the outer shell 2 is vertically arranged, the controller 8 is embedded on the top of the outer shell 2, the turbidity sensor 4 is arranged on the top of the outer shell 2, the connecting end of the turbidity sensor 4 is electrically connected with the controller 8, and the detection end of the turbidity sensor 4 extends into the filter chamber 201.

[0056] In the embodiment, the controller 8 is embedded in the top of the shell 2 and electrically connected with the turbidity sensor 4. Such integrated design enables the controller 8 to conveniently receive the data of the turbidity sensor 4, realize real-time monitoring and intelligent control of the working state of the water purifier, and realize intelligent management by comprehensively analyzing the water quality condition of the controller 8 in combination with the data of the turbidity sensor 4 through the electrical connection of the conductivity sensor 3 and the controller 8. The controller 8 and the turbidity sensor 4 are arranged on the top of the shell 2 to shorten the distance between the two components, so that the connecting end of the turbidity sensor 4 is directly connected with the pin of the controller 8, avoiding the use of long wires for connection, simplifying the internal wiring of the water purifier, reducing the wiring complexity, making the equipment inside more tidy, shortening the connecting line to reduce the interference in the signal transmission process, improving the stability and reliability of the signal, reducing the signal transmission distance, helping to improve the response speed of the controller 8 to the signal of the turbidity sensor 4, and making the collection and processing of water quality data more timely.

[0057] As a specific embodiment, when the water outlet is provided with a flow sensor, the sensing module is electrically connected with the controller, and the flow sensor is used to detect the water outlet flow.

[0058] Referring to Figures 1 to 6 As shown in the figure, the water purifier further comprises a display screen 9 arranged on the outer wall of the shell 2, and the display screen 9 is electrically connected with the controller 8.

[0059] In the embodiment, the data detected by the conductivity sensor 3, the turbidity sensor 4 and the flow sensor 5 is fitted, and the fitting attenuation slope is compared with the attenuation slope in the database to obtain the corresponding filter core 102 life value displayed on the display screen 9. The display screen 9 can intuitively show the current working state and related information of the water purifier to the user, so that the user can know the life condition of the filter core 102 of the water purifier in real time. In addition, the display screen 9 can integrate multiple information such as time, temperature, filter core 102 use time, replacement time, etc.

[0060] As a specific embodiment, a display panel mounting area is arranged on the top of the shell 2 to display the use state and the fitted life information of the micro water purifier. In order to fix the display panel on the micro water purifier, the sealing fit of the turbidity sensor 4 is integrated on the mounting area, and the sealing fit of the turbidity sensor 4 and the shell 2 is used to fix the display panel, and at the same time, the turbidity sensor 4 and the display panel form a module integration.

[0061] Referring to Figures 1 to 5 As shown in the figure, the shell 2 is provided with a sealing groove 204, and a sealing ring is arranged in the sealing groove 204. The turbidity sensor 4 is sealingly connected with the sealing groove 204 through the sealing ring.

[0062] In the embodiment, the main function of the sealing ring is to ensure the connection between the turbidity sensor 4 and the shell 2 is waterproof, prevent water from leaking into the sensor or the water purifier, protect the internal circuit and components from moisture erosion and damage, the sealing groove 204 and the sealing ring enhance the stability of the water purifier structure, reduce the structural displacement caused by vibration or pressure change, and ensure the accuracy and stability of the sensor measurement.

[0063] The working process of the water purifier is: establishing a life attenuation slope database of the filter core assembly 1, setting an initial attenuation slope value of the water purifier;

[0064] The conductivity sensor 3 detects the raw water conductivity value at the water inlet 202, and the turbidity sensor 4 detects the raw water turbidity value in the filter chamber 201.

[0065] The detected raw water conductivity value and raw water turbidity value are fitted to obtain a first attenuation slope value, the first attenuation slope value is compared with the initial attenuation slope value, and the filter core 102 life value is output according to the comparison result.

[0066] It is worth noting that the filter core 102 life attenuation slope refers to the rate at which the filter core 102 gradually reduces its filtering efficiency or performance over time and with the increase in the number of uses, the trend of the performance of the filter core 102 changing over time. In this embodiment, the raw water quality is also considered to affect the life, so the first attenuation slope after fitting the raw water conductivity value and the raw water turbidity value is compared with the attenuation slope in the database. The life attenuation slope database in this embodiment means that different conductivity values and turbidity values have been collected in advance, and the corresponding filter core 102 life values have been calculated according to each different conductivity value and turbidity value. The attenuation slope database includes the matching scheme between each value, so after comparing the first attenuation slope obtained by detection with the values in the database, the corresponding filter core 102 life value can be obtained.

[0067] Specifically, the data collected by the conductivity sensor 3 when water flows into the water inlet 202 is X S / m (X represents the collected data value, and S / m is the conductivity index unit), and the conductivity of domestic drinking water should not be greater than 2500 μS / cm (microsiemens per centimeter). The data collected by the turbidity sensor 4 is Y NTU (Y represents the collected data value, and NTU is the turbidity index unit). For example, the normal turbidity requirement for domestic drinking water is 1 NTU, and the turbidity in extremely poor water quality areas should not exceed 3 NTU. In this embodiment, the turbidity has been divided in the controller 8, such as: turbidity Y>3 NTU is poor water quality, turbidity Y between 1-3 NTU is relatively poor water quality, turbidity Y between 0.3-1 NTU is relatively good water quality, and turbidity Y between 0.1-0.3 NTU is good water quality.

[0068] Specific examples: the original water collection in an area, when the conductivity data collected in advance to determine the water conductivity of the region is above the median, for example, conductivity X > 500 μS / cm, defined as the water quality is relatively hard area, combined with turbidity sensor 4 data, for example, sampling turbidity Y between 1 ~ 3 NTU, fitting after determining the filter core 102 harsh environment, namely the water quality of raw water is not good overall, its filter core 102 life will be adjusted according to the fitting curve of the database results.

[0069] Specifically, the first attenuation slope is compared with the values in the database, and the process of the filter core 102 life adjustment output is: when leaving the factory, the filter core 102 life attenuation slope written in the controller 8 is 1, that is, the initial attenuation slope value of the water purifier is 1, and the controller 8 also records the attenuation slope under different water quality, forming a life attenuation slope database. When the user uses it for the first time, the raw water conductivity and turbidity flowing into the water inlet 202 are very high, corresponding to the attenuation slope written in the controller 8, if it is 0.8, the filter core 102 life will be displayed in percentage multiplication according to the attenuation rate of 0.8 when using, that is, the life of the filter core 102 is 85%.

[0070] When the flow sensor 5 is arranged in the water outlet 203, the working process is: the flow sensor 5 detects the water flow value at the water outlet 203, fits the detected raw water conductivity value, raw water turbidity value and water flow value to obtain the second attenuation slope value, compares the second attenuation slope value with the initial attenuation slope value, and outputs the filter core 102 life value according to the comparison result.

[0071] In this embodiment, the flow sensor 5 also synchronously collects the water flow, and feeds back the flow data to the controller 8 for further calibration of the filter core 102 life attenuation. By detecting the water flow value at the water outlet 203 through the flow sensor 5, combined with the raw water conductivity value and the raw water turbidity value, the water quality and the working state of the water purifier can be more comprehensively monitored. This multi-parameter data fitting can provide more accurate analysis of the performance of the filter core 102.

[0072] Those skilled in the art can easily understand that the above advantageous modes can be freely combined and superimposed without conflict.

[0073] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only a preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, which should be regarded as the protection scope of the present application.

Claims

1. A water purifier, characterized in that, The utility model relates to a filter element assembly, shell, conductivity sensor and turbidity sensor are provided, and the filter element assembly is arranged in the shell, and the filter element assembly is communicated with the shell and forms the filter chamber, the shell has the water inlet and the water outlet, the water inlet is communicated with the filter chamber, the filter inlet of the filter element assembly is communicated with the filter chamber, and the filter outlet of the filter element assembly is communicated with the water outlet, the conductivity sensor is arranged at the water inlet, and the turbidity sensor is arranged on the shell or the filter element assembly, and the detection end of the turbidity sensor is used to detect the raw water quality in the filter chamber, the water outlet is provided with the flow sensor, and the inlet end of the flow sensor is connected with the filter outlet of the filter element assembly. The water outlet is further provided with a fixing assembly, the fixing assembly includes a fixing piece, and the flow sensor is arranged in the fixing piece. The flow sensor is a split flow sensor, and the flow sensor includes an impeller and a sensing module, the impeller is rotatably arranged in the fixing piece, the inlet end of the impeller is connected with the filter outlet of the filter element assembly, the sensing module is arranged on the shell, and the sensing module is used to detect the rotation of the impeller. The fixing piece includes a first sleeve and a second sleeve, the first sleeve and the second sleeve are provided with a stopper at adjacent ends, respectively, the opposite end of the first sleeve is provided with a first shaft sleeve, the opposite end of the second sleeve is provided with a second shaft sleeve, the impeller is provided with a rotating shaft, and the rotating shaft is inserted into the first shaft sleeve and the second shaft sleeve at both ends, respectively.

2. The water purifier according to claim 1, characterized in that, The filter outlet of the filter element assembly is arranged opposite to the water outlet, the fixing assembly further includes a guide ring and a plurality of guide ribs, the plurality of guide ribs are arranged along the circumference of the fixing piece at intervals, one end of the guide rib is connected with the fixing piece, the other end of the guide rib is connected with the guide ring, one end face of the guide ring is abutted with the inner wall of the water outlet or the outer peripheral wall of the guide ring is abutted with the inner wall of the water outlet, and the other end face of the guide ring is abutted with the outer wall of the filter element assembly.

3. The water purifier according to claim 2, wherein ​ 4. The water purifier according to claim 3, wherein ​ 5. The water purifier according to claim 4, wherein ​ 6. The water purifier according to claim 3, wherein ​ 7. The water purifier according to claim 1, wherein The water inlet (202) comprises a first flow channel (221) and a second flow channel (222) in communication with each other, one end of the first flow channel (221) away from the second flow channel (222) is connected with the assembly joint (7), the detection end of the conductivity sensor (3) extends into the first flow channel (221), one end of the second flow channel (222) away from the first flow channel (221) is in communication with the filter chamber (201), and the cross-sectional area of the second flow channel (222) is smaller than that of the first flow channel (221).

8. The water purifier according to any one of claims 1 to 7, characterized in that, The water purifier further comprises a controller (8), the conductivity sensor (3) is in electrical signal connection with the controller (8), the shell (2) is vertically arranged, the controller (8) is embedded on the top of the shell (2), the turbidity sensor (4) is arranged on the top of the shell (2), the connection end of the turbidity sensor (4) is in electrical connection with the controller (8), and the detection end of the turbidity sensor (4) extends into the filter chamber (201).

9. The water purifier according to claim 8, characterized in that, The water purifier further comprises a display screen (9), the display screen (9) is arranged on the outer wall of the shell (2), and the display screen (9) is in electrical connection with the controller (8).

10. The water purifier according to claim 1, wherein The shell (2) is provided with a sealing groove (204), a sealing ring is arranged in the sealing groove (204), and the turbidity sensor (4) is in sealed connection with the sealing groove (204) through the sealing ring.

Images