WO2022138517A1 - Épurateur d'eau avec raccordement direct au robinet - Google Patents

Épurateur d'eau avec raccordement direct au robinet Download PDF

Info

Publication number
WO2022138517A1
WO2022138517A1 PCT/JP2021/046889 JP2021046889W WO2022138517A1 WO 2022138517 A1 WO2022138517 A1 WO 2022138517A1 JP 2021046889 W JP2021046889 W JP 2021046889W WO 2022138517 A1 WO2022138517 A1 WO 2022138517A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
filtration cartridge
faucet
water purifier
raw water
Prior art date
Application number
PCT/JP2021/046889
Other languages
English (en)
Japanese (ja)
Inventor
彰真 鈴木
卓 磯部
敏之 宮嶋
友紀子 市之瀬
Original Assignee
東レ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2020211055A external-priority patent/JP2022097853A/ja
Priority claimed from JP2020211054A external-priority patent/JP2022097852A/ja
Application filed by 東レ株式会社 filed Critical 東レ株式会社
Priority to KR2020237000018U priority Critical patent/KR20230001485U/ko
Priority to CN202190000925.XU priority patent/CN220684756U/zh
Publication of WO2022138517A1 publication Critical patent/WO2022138517A1/fr

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Definitions

  • the present invention relates to a faucet direct connection type water purifier used by being attached to a faucet in a home or the like.
  • a faucet direct connection type water purifier that is equipped with a replaceable filtration cartridge filled with a filter medium such as a hollow fiber membrane or activated carbon and is attached to a faucet at home to filter tap water.
  • Filtration cartridges are used by users because iron rust contained in tap water clogs the hollow fiber membrane and the flow rate decreases, and a large amount of organic substances contained in tap water adsorbs and the adsorption performance of activated carbon deteriorates.
  • Patent Document 1 a faucet direct connection type water purifier that measures and integrates the flow rate of tap water flowing into a filtration cartridge and displays it so that the user can visually recognize it when a predetermined total amount of filtered water is reached is provided. Proposed. Even if there is no change in the taste or color of the purified water, the user can grasp the replacement time of the filtration cartridge by looking at the display without performing troublesome measurement. Do not drink purified water that has deteriorated adsorption performance and has not been sufficiently filtered.
  • Patent Document 2 proposes a faucet direct connection type water purifier provided with a flow rate detection unit on the downstream side of the filtration cartridge. Since purified water from which iron rust has been removed flows into the flow rate detection unit, the iron rust does not get caught in the built-in magnet and rotating blades and stop rotating. Therefore, it is possible to correctly measure and integrate the filtration flow rate and display the replacement time of the filtration cartridge.
  • the present invention prevents iron rust of tap water from flowing into the flow rate detection unit and makes it impossible to measure, has good assembly efficiency, does not have a large width dimension, and allows the user to replace the filtration cartridge.
  • Patent Document 3 proposes a faucet-directed water purifier in which the surface of the liquid crystal display is fixed in an upright position. That is, the surface of the liquid crystal display is tilted to 0 degrees with respect to the vertical axis direction. Since the liquid crystal display does not overhang in front of the faucet, the water purifier does not get in the way and make it difficult to see when the user washes dishes and cups under the water purifier.
  • the present invention prevents the user from becoming difficult to see when washing dishes and cups under a water purifier directly connected to the faucet, and bends down to adjust the height of the eyes of the liquid crystal display.
  • a faucet direct connection type water purifier that does not need to be close to the height and allows the user to easily grasp the replacement time of the filtration cartridge.
  • the faucet direct connection type water purifier of the present invention that solves the above first problem is A raw water inflow port that receives raw water, a flow path switching valve that switches the flow path of the received raw water, a filtration cartridge that purifies the raw water, a purified water outlet that discharges purified water, and a flow path switching valve to the filtration cartridge.
  • a water purifier that is provided with a raw water pipeline that connects and a water purification pipeline that connects the filtration cartridge to the purified water outlet, and is supported and fixed to a faucet.
  • the water purification pipeline is provided with a flow rate detection unit.
  • the water purification pipeline is arranged at a position above the raw water pipeline with the water purifier supported and fixed to the faucet.
  • the flow rate detecting unit includes a rotatable water turbine and a magnetic switch that outputs a signal corresponding to the rotation of the water turbine.
  • the water turbine has a resin cylinder, blades, and a magnet fixed inside the cylinder, and is disposed inside the water purification pipeline. It is preferable that the magnetic switch is arranged in the water purification pipe at a position above the water purification pipe in a state where the water purifier is supported and fixed to the faucet.
  • the faucet direct connection type water purifier of the present invention that solves the second problem is a water purifier that is provided with a liquid crystal display and is supported and fixed to the faucet.
  • the surface of the liquid crystal display is tilted at 20 degrees or more and 40 degrees or less with respect to the vertical axis direction with the water purifier supported and fixed to the faucet.
  • the segment of the liquid crystal display and the backlight can be turned on at the same time.
  • the backlight can be turned on in at least two colors.
  • the water purifier directly connected to the faucet of the present invention which solves the first problem, has a raw water pipeline connecting the flow path switching valve to the filtration cartridge and a water purification pipeline connecting the filtration cartridge to the purified water outlet. Since the flow rate detection unit is provided in the water purification pipeline, purified water from which iron rust and the like have been removed flows into the flow rate detection unit. As a result, there is no problem that iron rust is caught on the built-in magnet and the rotating blades and the rotating blades do not rotate. Therefore, the filtration flow rate can be correctly measured and integrated, and the replacement time of the filtration cartridge can be displayed.
  • the water purification pipeline is arranged above the raw water pipeline, it is not necessary to arrange the flow rate detection unit around the pipeline in the back, and the flow rate detection unit can be arranged near the hand. can. As a result, the manufacturing cost can be reduced without taking time and effort for assembly and reducing the assembly efficiency.
  • the flow rate detection unit has a rotatable water wheel and a magnetic switch, and the water wheel has a resin cylinder, blades, and the like. And since it has a magnet fixed inside the cylinder, a water wheel is arranged inside the water purification pipeline, and a magnetic switch is arranged above the water purification pipeline, the magnetic switch is placed outside the water purification pipeline.
  • the width dimension does not increase by arranging in. As a result, when the user of the water purifier washes the dishes, the hands are not easily hidden by the water purifier, so that the hands are easy to see.
  • the surface of the liquid crystal display is tilted at 20 degrees or more and 40 degrees or less with respect to the vertical axis direction. Does not overhang in front of the faucet, and when the user washes dishes and cups under the water purifier, the water purifier does not get in the way and make it difficult to see.
  • the liquid crystal display segment and the backlight can be turned on at the same time, the backlight can be turned on even when the displayed segment is difficult to see by the user looking down at the liquid crystal display from above. By checking how to do it, you can know when to replace the filtration cartridge.
  • the backlight can be turned on in at least two colors, so that the user can confirm the color of the backlight. , The replacement time of the filtration cartridge can be grasped more easily.
  • FIG. 2 is a vertical sectional view taken along the line AA of the water purifier shown in FIG.
  • BB vertical sectional view of the water purifier shown in FIG.
  • filtration cartridge of the water purifier which concerns on one Embodiment of this invention.
  • EE vertical cross section of the water purifier shown in FIG.
  • FIG. 9 is a CC vertical sectional view of the water purifier shown in FIG. It is an exploded perspective view of the power-source part 101 used for the water purifier which concerns on one Embodiment of this invention.
  • 9 is an enlarged view of a portion indicated by reference numeral 102 in FIG.
  • It is an exploded perspective view of the flow rate detecting part 102 used for the water purifier which concerns on one Embodiment of this invention.
  • It is a front view of the control part 104 of the water purifier which concerns on one Embodiment of this invention.
  • FIG. 1 is a front view of a water purifier according to an embodiment of the present invention.
  • the water purifier 1 of the present embodiment is composed of a main body 2 having a flow path switching valve built therein, a filtration cartridge 3 containing a filter medium, and the like shown in FIG.
  • a lever 5 is provided in the main body 2, and the user operates the lever 5 to discharge the raw water flowing from the faucet 4 through the raw water inlet as it is as shower water (raw water). Select and switch between showering), discharging straight water as it is (raw water straight), and supplying it to the filtration cartridge 3.
  • the raw water supplied to the filtration cartridge 3 is filtered by an adsorbent such as activated carbon, a hollow fiber membrane, or the like, and is discharged as purified water from the purified water outlet.
  • FIG. 2 is a top view of the water purifier according to the embodiment of the present invention.
  • FIG. 3 is a right side view of the water purifier according to the embodiment of the present invention.
  • FIG. 4 is a vertical cross section taken along the line AA in FIG. 2
  • FIG. 5 is a vertical cross section taken along the line BB in FIG.
  • the main body 2 integrates the flow rates of the lower body 16, the upper body 17, the lever 5 for switching operation, the cartridge cap 91 for fixing the filtration cartridge 3, and the flow rate thereof. It is equipped with an electrical component that displays the results.
  • the lower body 16 includes a flow path switching valve main body 13 having three valve bodies 11a, 11b, 11c and a valve shaft 12, a raw water shower port 14, a raw water straight port 15, and a purified water outlet 19. .
  • the upper body 17 has an opening in which the flow path switching valve main body 13 projects to the upper surface.
  • a ring-shaped packing 36 is attached to the flow path switching valve main body 13, and the mounting nut 38 is screwed into the flow path switching valve main body 13 via an adapter 37 attached to the tip of the faucet 4. , The main body 2 is attached to the faucet 4.
  • the inside of the flow path switching valve main body 13 is divided into an upper chamber 23 and a lower chamber 24 by a partition plate 22 having three water passages 21a, 21b, and 21c.
  • a partition plate 22 having three water passages 21a, 21b, and 21c.
  • three valve bodies 11a, 11b, 11c are arranged so as to correspond to the three water passages 21a, 21b, 21c.
  • FIG. 7 is a perspective view of a valve body used in the water purifier according to the embodiment of the present invention.
  • the valve bodies 11a, 11b and 11c are composed of valves 58a, 58b and 58c, respectively, and valve seals 57a, 57b and 57c.
  • the valve seal 57a of the valve body 11a is pressed against the partition plate 22, the water passage 21a is closed.
  • the valve bodies 11b and 11c are composed of valves 58a, 58b and 58c, respectively, and valve seals 57a, 57b and 57c.
  • the valve shaft 12 is inserted so that the valve bodies 11a, 11b, 11c move up and down in response to the rotation thereof.
  • the lower chamber 24 has a flow path 31a leading from the water passage 21a to the raw water supply port 26 (see FIG. 9) for supplying raw water to the filtration cartridge 3, and a flow path 31b leading from the water passage 21b to the raw water straight port 15.
  • a flow path 31c leading from the water channel 21c to the raw water shower port 14 is provided.
  • valve shaft 12 is provided with valve shaft cam portions 27a, 27b, 27c at positions facing the water passages 21a, 21b, 21c.
  • These valve shaft cam portions 27a, 27b, 27c are provided so as to be offset by, for example, 40 ° in the circumferential direction of the valve shaft 12, and by rotating the valve shaft 12 by 40 °, they are selectively directed upward and the valve is valved.
  • Any one of the valve cam portions 47a, 47b, 47c provided in the 58a, 58b, 58c can be pushed up to open the water passage.
  • the two valve bodies that cannot be pushed up are pushed down by the corresponding valve shaft cams to close the water passage.
  • one of the water passages 21a, 21b, and 21c is opened by rotating the valve shaft 12 by a predetermined angle by the valve operating unit 18 described later, and the raw water flowing in from the faucet 4 is discharged as shower water as it is. It is possible to select whether to discharge the water as it is as straight water or to supply it to the filtration cartridge 3.
  • valve bodies 11a, 11b, and 11c a valve with an umbrella-shaped rubber valve seal attached to the valve as the core body is used, but the shape of the valve seal is not limited to this and may be conical or cylindrical.
  • FIG. 9 is a CC cross section in FIG.
  • a raw water supply port 26 for supplying raw water to the filtration cartridge 3 and a purified water receiving port 29 for receiving purified water from the filtration cartridge 3 are provided behind the side portion of the flow path switching valve main body 13.
  • the raw water supply port 26 communicates with the flow path 31a via the raw water pipeline 20, and the purified water receiving port 29 communicates with the purified water outlet 19 via the purified water pipeline 30.
  • the water purification pipeline 30 is provided with a water wheel 122 and a water wheel support member 123 of a flow rate detecting unit 102, which will be described later, so that the water wheel 122 rotates due to the passage of purified water.
  • the purified water pipe 30 is located above the raw water pipe 20.
  • the magnetic switch holder 125 of the flow rate detecting unit 102 is arranged on the upper side surface of the water purification pipe line 30.
  • “upper” is the direction on the vertical upper side in a state where the water purifier 1 is supported and fixed to the faucet.
  • FIG. 6 is a cross-sectional view of the filtration cartridge 3 mounted on the water purifier according to the embodiment of the present invention.
  • the filtration cartridge 3 is provided with a raw water receiving port 62 for receiving raw water from the raw water supply port 26 and a purified water supply port 63 for supplying purified water to the purified water receiving port 29 at the bottom of the container 61.
  • O-rings 73 and 74 are provided at the raw water inlet 62 and the purified water supply port 63, respectively, to prevent water from leaking to the outside when the raw water supply port 26 and the purified water inlet 29 are connected to each other.
  • a cylindrical protrusion 61a is formed on the inner bottom surface of the container 61, and the lower end of the cylindrical body 64 of the hollow fiber membrane module is fitted and erected on the cylindrical protrusion 61a via an O-ring 65.
  • a ring-shaped filter 66 is placed on the upper and lower outer peripheral portions of the cylindrical body 64 in order to hold an adsorbent layer 70 for treating raw water passing between the outer peripheral surface of the cylindrical body 64 and the inner wall surface of the container 61. , 67 is fixed.
  • a hollow fiber membrane bundle 68 in which a plurality of hollow fiber membranes are bundled and bent into an inverted U shape is stored. Both ends of the hollow fiber membrane are sealed and fixed (potted) by a curable resin 69 (sealing agent) filled between the hollow fibers and between the hollow fibers and the cylindrical body 64 at the lower part of the cylindrical body 64. ing. Since the potting portion of each hollow fiber membrane is partially cut and removed before being fitted into the container 61, the end thereof is open toward the purified water supply port 63.
  • An adsorbent layer 70 made of activated carbon, zeolite, an ion exchange resin, a chelate resin, or the like is provided between the outer peripheral surface of the cylindrical body 64 and the inner wall surface of the container 61.
  • the upper part of the container 61 is opened so that the hollow fiber membrane bundle 68 and the adsorbent can be easily filled, and the transparent cap 71 is fitted and ultrasonically welded so that the dirt inside can be confirmed.
  • the filtration cartridge 3 configured as described above is loaded into the main body 2 as shown in FIG.
  • the cartridge cap 91 is fixed to the lower body 16 and the upper body 17 at a position where it covers the filtration cartridge 3, and serves to fix the filtration cartridge 3 in a predetermined position.
  • FIG. 8 is a vertical sectional view taken along the line EE in FIG.
  • the valve operating portion 18 connects the convex portion provided at the shaft end of the lever 5 and the convex portion provided at the shaft end of the valve shaft 12 via the lever connecting portion 8, and responds to the operation of the lever 5.
  • the valve shaft 12 is designed to rotate.
  • the groove provided in the lever connecting portion 8 is sandwiched between the upper body 17 and the lower body 16 so as to be rotatable with respect to the axis of the valve shaft 12.
  • the valve shaft 12 has a spring 7 and steel balls 6a and 6b in holes provided on the side surface of a cylinder in the vicinity where the lever connecting portion 8 and the valve shaft 12 abut, and a part of the steel balls 6b comes out from the hole portion 9. Is inserted in.
  • FIG. 13 is a right side view of a flow path switching valve main body 13 of a water purifier showing an embodiment of the present invention.
  • the steel ball 6b fits in the three recesses 10 provided at the position where the valve shaft 12 of the flow path switching valve main body 13 is inserted.
  • the steel ball 6b moves to the adjacent recess 10 among the three recesses 10 of the flow path switching valve main body 13 by the rotation operation of the lever 5, the steel ball 6b is repelled by the elastic force of the spring 7 into the recess 10. It provides a click feeling and informs the user that the switching operation has been performed.
  • the number of steel balls may be one. Further, although a compression spring is used, a leaf spring mechanism may be used to reproduce the click feeling.
  • FIG. 15 is an illustration of "purified water”, “raw water straight”, and “raw water shower” showing a switching state of a water purifier showing an embodiment of the present invention.
  • "purified water” illustration 171a, “raw water straight” illustration 171b, and “raw water shower” illustration 171c showing a switching state as shown in FIG. 15 are printed.
  • the display indicating the switching state may be only characters or both characters and illustrations.
  • the electrical component unit includes a power supply unit 101 shown in FIG. 4, a flow rate detection unit 102 shown in FIG. 9, a control unit 104, a reset unit 153, and the like.
  • FIG. 10 is an exploded perspective view of the power supply unit 101 used in the water purifier according to the embodiment of the present invention.
  • the power supply unit 101 includes a battery holder 115 sandwiched between the upper body 17 and the lower body 16, a coin-shaped lithium manganese dioxide battery 111 (hereinafter referred to as battery 111), an anode metal fitting 113 and a cathode metal fitting 114, and a detachable battery for watertightly fixing the battery. It is composed of a flexible battery cover 112.
  • the battery cover 112 has a cylindrical battery mounting portion 116 and an O-ring 117 on the outer periphery thereof, and when the battery cover 112 is mounted on the battery holder 115 by the bayonet mechanism, water is drawn to the battery mounting portion 116. It is designed to prevent intrusion. Since the tubular battery mounting portion 116 is provided with a notch 118, the battery can be easily removed by hooking a finger. Further, a recess 119 for inserting and turning a coin is provided on the surface of the battery cover 112, and characters and illustrations indicating the standard of the battery and the rotation direction for opening and closing are engraved around the recess 119. Therefore, the user can remove the battery cover 112 from the battery holder 115 by using a coin after confirming the battery standard and the rotation direction of the battery cover 112, and replace the battery.
  • the anode metal fittings 113 and the cathode metal fittings 114 provided in the battery holder 115 are respectively connected to the control unit 104 shown in FIG. 9 by lead wires, and the electric power of the battery 111 is supplied to the control unit 104.
  • the lead wire and the battery holder 115 are sealed with silicone rubber to prevent water from entering the anode metal fitting 113, the cathode metal fitting 114, and the battery mounting portion 116 through the lead wire.
  • potting with urethane resin or sealing with a rubber cap may be used instead of silicone rubber.
  • the battery may be a primary battery or a secondary battery, and is a lithium battery such as a manganese dioxide lithium battery that can stably supply power for a long period of time at a relatively high voltage, as well as an alkaline dry battery, a manganese dry battery, and a silver oxide battery. , Air zinc battery, etc. may be used.
  • the shape is preferably a small battery such as a button type or a coin type which is lightweight and does not require a large installation space. In the case of a small battery, the main body does not become significantly large or significantly increased in weight, and the cost does not increase significantly.
  • FIG. 12 is an exploded perspective view of the flow rate detecting unit 102 used in the water purifier according to the embodiment of the present invention.
  • the flow rate detecting unit 102 rotatably supports the water turbine 122 including the magnet 121 and the water turbine 122. It is composed of a member 123, a magnetic switch 124 that energizes according to the rotation of a magnet, and a magnetic switch holder 125 that supports and fixes the magnetic switch 124.
  • the water turbine 122 is made of resin and has a plurality of blades 132 formed on the outer periphery of a cylindrical cylindrical portion 131, and is made of a magnet 121 and a metal coaxially with the tubular portion 131.
  • the shaft 126 is fixed.
  • the magnet 121 is integrally molded so as to be included in the tubular portion 131 so as not to come into contact with water.
  • the opening of the magnet mounting hole is welded with a resin lid or curable.
  • a configuration in which a resin (sealing material) is used for sealing is also preferable.
  • the curable resin polyurethane having higher safety is preferable, but an epoxy resin, other encapsulant, or an adhesive may be used.
  • an epoxy resin, other encapsulant, or an adhesive may be used.
  • a ferrite magnet or the like may be used in addition to a rare earth magnet having a strong magnetic force.
  • the water turbine 122 is pivotally supported from the downstream side by the water turbine support member 123 so as to be rotatable in the water purification pipeline 30.
  • the metal shaft 126 of the turbine 122 is inserted into the bottomed hole of the turbine support member 123 so that the turbine 122 does not shift to the downstream side.
  • a plurality of ribs 127 extending in the axial direction are provided on the outer peripheral surface of the water turbine support member 123, and the ribs 127 are slightly deformed when inserted into the water purification pipeline 30 to be firmly fixed. It is supposed to be done.
  • the rotation axis of the water turbine 122 may be an axial flow type parallel to or orthogonal to the water supply direction of purified water.
  • the magnetic switch 124 is inserted into the magnetic switch holder 125 and sealed and fixed by a curable resin 137 (sealing material).
  • the magnetic switch 124 is connected to the control unit 104 by a lead wire, and the pulse signal generated by the magnetic switch 124 is transmitted to the control unit 104.
  • the magnetic switch holder 125 accommodating the magnetic switch 124 is fixed so as to abut on the outer peripheral upper side surface of the water purification pipeline 30 and to be located in the vicinity of the water turbine 122.
  • a pair of ribs 133 of the water purification pipeline 30 on the upstream side of the water turbine 122 support the tubular portion 131 so that the water turbine 122 does not move away from the predetermined position of the water purification pipeline 30. Since the rib 133 supports the cylinder portion 131 instead of the blade 132, it does not hinder the rotation of the water turbine. The rib 133 also has an effect of rectifying the purified water flowing into the water turbine 122. In the present embodiment, a pair of ribs 133 is provided, but it is preferable to arrange a plurality of ribs radially with respect to the axis of the water purification pipe 30 within a range in which the flow rate does not decrease.
  • the water wheel 122 rotates due to the flow of purified water, the magnet 121 integrated with the water wheel 122 rotates, and the magnetic field changes accordingly.
  • the magnetic switch 124 transmits a pulse signal for two cycles, which is transmitted to the control unit 104.
  • a reed switch may be used or a hall sensor may be used.
  • the flow rate detecting unit 102 is arranged on the downstream side of the filtration cartridge 3, iron rust and the like do not flow in, and the iron rust does not get caught in the plurality of blades 132 of the water turbine 122 and stop rotating. As a result, the flow rate of purified water can be correctly measured and integrated, and the replacement time of the filtration cartridge 3 can be displayed.
  • the magnetic switch holder 125 of the flow rate detecting unit 102 is arranged on the outer peripheral upper side surface of the water purification pipeline 30, the magnetic switch holder is arranged outside the water purification pipeline in the lateral direction to determine the width of the water purifier 1.
  • the magnetic switch holder is arranged outside the water purification pipeline in the lateral direction to determine the width of the water purifier 1.
  • the water purification pipe 30 is arranged above the raw water pipe 20, it is not necessary to arrange the flow rate detection unit 102 around the pipe in the back. Since the flow rate detecting unit 102 can be arranged in the water purification pipe 30 close to the hand, the manufacturing cost can be reduced without taking time and effort for assembling and reducing the assembling efficiency.
  • FIG. 16 is an enlarged view of the control unit 104 in the DD cross-sectional view of the water purifier shown in FIG.
  • the control unit 104 includes a circuit board 151 provided with a CPU and a transparent board holder 152 for accommodating the circuit board 151.
  • the CPU receives power from the power supply unit 101, performs an operation based on a signal from a pulse signal from the flow rate detection unit 102, and sends an output signal to the liquid crystal display 105.
  • This liquid crystal display 105 can be placed at a position away from the circuit board and connected with a lead wire or the like, but the signal can be transmitted more reliably if it is directly supported and fixed to the circuit board 151.
  • the opening is hardened with the circuit board 151 and the liquid crystal display 105 fixed to the board holder 152 from the opening. It is preferable to seal with a sex resin 156 (sealing material) for waterproofing. Further, a lid may be used to weld and fix the substrate holder 152 to be waterproof. By applying waterproofing in this way, it is not necessary to individually waterproof each part, which makes it possible to simplify the manufacturing process and reduce the manufacturing cost.
  • the curable resin a two-component mixed polyurethane, an epoxy resin, or the like may be used.
  • the liquid crystal display 105 is located in the front upper part of the main body 2 in a state of being supported and fixed to the circuit board 151. Further, the liquid crystal display 105 is erected so that the surface of the liquid crystal display 105 is tilted backward with an inclination of 20 degrees or more and 40 degrees or less with respect to the vertical axis direction in a state where the water purifier 1 is supported and fixed to the faucet. When the inclination angle is 40 degrees or less, the liquid crystal display 105 does not protrude so much toward the front, so that the user does not have difficulty in seeing the discharge state of the raw water shower because the water purifier is an obstacle. As a result, the surface of the dish becomes easier to see when washing the dish.
  • the user looks down on the liquid crystal display 105 from considerably above, but if the inclination angle is 20 degrees or more, the display of the liquid crystal display 105 does not become difficult to see when looking down from above. That is, it is not necessary for the user to bend down and look at the liquid crystal display 205 from a low position.
  • the inclination angle is 20 degrees or more and 40 degrees or less as described above, the discharge state of the raw water shower can be easily seen, and the display of the liquid crystal display 105 may be relatively easy to see.
  • FIG. 14 is a front view of the control unit 104 of the water purifier showing an embodiment of the present invention.
  • a filtration cartridge replacement display element 161 representing a 4-digit number from 23 segments and a battery replacement display element 162 can be turned on, blinked, and turned off, and are further provided in two places.
  • the backlight can be turned on, blinked, and turned off by the three-color LED 168, and the color of the backlight can be changed. Even if the four-digit number cannot be read instantly, the user can know when to replace the filtration cartridge by looking at the lighting / blinking state and color of the backlight.
  • a protrusion is provided on the upper part of the water purification pipe line 30 of the flow path switching valve main body 13 so that the lead wire extending from the electrical component portion is not pinched between the upper body 17 and the lower body 16 during assembly. It is better if the board holder 152 has a protrusion or a catch that holds together the lead wires extending from the power supply unit 101, the flow rate detection unit 102, and the reset unit 153.
  • the reset unit 153 includes a reset button 154 and a reset button case 155 for preventing water from entering the reset button. As shown in FIG. 2, the tip of the reset button 154 is projected from the rear upper surface of the side surface of the water purifier 1, and the user can reset the integrated flow rate data by pressing the reset button 154. Further, the integrated flow rate at which the filtration cartridge must be replaced can be selected according to the type of the filtration cartridge 3 to be used.
  • the reset button case 155 is made of an elastomer, it may be made of ABS resin or sealed with polyurethane.
  • FIG. 4 shows a state in which raw water is discharged from the raw water shower port 14.
  • the faucet When the faucet is opened, the raw water flows in from the raw water inflow port 28, and after the momentum is relaxed by the water flow mitigation member 39, the valve shaft cam portion 27c pushes up the valve body 11c and passes through the open water passage 21c. Then, it is discharged from the raw water shower port 14. At this time, the lever 5 comes to the position showing the "raw water shower" illustration 71c written on the upper body 17.
  • the valve shaft 12 When the lever 5 is rotated in the opposite direction of the raw water straight, the valve shaft 12 is similarly rotated, the water passage 21b is closed, and the water passage 21a is opened. As a result, the raw water passes through the water passage 21a and flows to the raw water supply port 26. Then, it flows in from the raw water receiving port 62 of the filtration cartridge 3 and is filtered by an adsorbent such as activated carbon and a hollow fiber membrane. The filtered water flows from the purified water supply port 63 to the purified water receiving port 29, passes through the purified water pipeline 30, and is discharged from the purified water outlet 19. At this time, the lever 5 comes to the position showing the "purified water" illustration 71a written on the upper body 17.
  • the water turbine 122 is rotated by the purified water flowing through the water purification pipeline 30, a pulse signal is sent to the control unit 104 by the flow rate detection unit 102, and the pulse signal is integrated as the flow rate of the purified water.
  • the remaining life of the filtration cartridge is displayed on the liquid crystal display 105 according to the integrated flow rate of the purified water.
  • the filtration cartridge replacement display element 161 displays a value obtained by subtracting the integrated amount of purified water from the flow rate selected at the start of use of the filtration cartridge at the start of each use of purified water.
  • the backlight is turned on for a predetermined time under the initial lighting / blinking conditions. For example, the blue light is turned on continuously for 7 seconds. The blue color means "advance" the traffic light, and the user who sees it feels reassured that the filtration cartridge can be used.
  • the backlight that lights up at the start of each use of purified water is changed to the first lighting / blinking condition. For example, it lights yellow or green for 7 seconds continuously. Yellow means "caution stop" at the traffic light, and the user who sees it is alerted. It does not change to display the value obtained by subtracting the amount of purified water passing from the flow rate selected at the start of using the filtration cartridge.
  • the backlight that lights up at the start of each use of purified water is changed to the second lighting / blinking condition. For example, red or pink is turned on continuously for 7 seconds.
  • the red color means "stop" of the traffic light, and the user who sees it recognizes that the filtration cartridge should be replaced soon and prepares a new filtration cartridge. It does not change to display the value obtained by subtracting the amount of purified water passing from the flow rate selected at the start of using the filtration cartridge.
  • the display method is shown in which the backlight can turn on three colors of blue, yellow (or green), and red (or pink), but the backlight can turn on only one color or two colors. Even in the form, the display of the first lighting / blinking condition, the second lighting / blinking condition, and the third lighting / blinking condition can be separated.
  • the backlight can be turned on in only two colors, blue and red
  • the following display may be performed.
  • the first lighting / blinking condition is blue and blinks at 2-second intervals.
  • the second lighting / blinking condition is red and blinks at 2-second intervals, and the third lighting / blinking condition is red and continuous lighting.
  • the color of the backlight changes from lighting blue to blinking red, and the continuous lighting of red makes the image of a pedestrian signal strongly feel that the filtration cartridge must be replaced.
  • the backlight is an embodiment in which only white can be turned on
  • the following display may be performed.
  • the first lighting / blinking condition is white and blinks at 1.5 second intervals
  • the second lighting / blinking condition is white and blinks at 1 second intervals.
  • the third lighting / blinking condition is white and continuous lighting. The shorter blinking intervals and the continuous lighting at the end make the user feel strongly that the filtration cartridge must be replaced.
  • the backlight can be turned on only in a single color as described above, the user can check the usage status of the filtration cartridge. However, if it is a single color, the impression to the user tends to be weak, so it is preferable that the backlight can be turned on in two or more colors.
  • the integrated count number of the pulses corresponding to the integrated flow rate returns to zero, and the filtration cartridge exchange display element 161 also returns to the initial display.
  • the liquid crystal display 105 blinks the battery replacement display element 162 when the battery voltage drops below a preset value, prompting the user to replace the battery.
  • the user does not have to bother to memorize the battery life start time and the battery life described in the instruction manual or the like. Therefore, the battery cannot be replaced because the battery life is forgotten, and the integrated flow rate data is not lost while using the filtration cartridge, and the battery can be replaced at an appropriate time.
  • the battery replacement display element 162 is configured to be turned off at the start of battery use and blink when the battery is nearing the end of its life, but it is displayed step by step in the same manner as the above-mentioned filtration cartridge replacement display. May be good.
  • this liquid crystal display 105 is turned off when the purified water is not used. That is, the CPU of the circuit board 151 detects that the water flow of purified water has stopped and the pulse signal from the flow rate detection unit 102 has stopped, switches to the sleep mode, turns off the liquid crystal display 105, and turns off the backlight. do.
  • the CPU of the circuit board 151 detects that the water flow of purified water has stopped and the pulse signal from the flow rate detection unit 102 has stopped, switches to the sleep mode, turns off the liquid crystal display 105, and turns off the backlight. do.
  • purified water passes through the water purification pipeline 30 and is discharged from the purified water outlet 19, the liquid crystal display 105 and the backlight are turned on, and the faucet is operated 3 seconds later.
  • the liquid crystal display 105 and the backlight are turned off immediately.
  • the power consumption of the battery is greatly reduced, and the battery can be used for a long period of time.
  • the sleep mode is released for a certain period of time, and the liquid crystal display 105 is
  • Example 1 A raw water flow path connecting the raw water supply port for supplying raw water to the filtration cartridge and the raw water flow path of the flow path switching valve main body is provided behind the side portion of the flow path switching valve main body. Above that, a purified water flow path connecting the purified water inlet and the purified water outlet that receive purified water from the filtration cartridge was provided. Since the central axis of the raw water flow path and the central axis of the purified water flow path are parallel, it is easy to manufacture the mold.
  • the water purifying pipeline was provided with a water wheel of the flow rate detection unit and a water wheel support member so that the water wheel could rotate due to the passage of purified water. Since the flow rate detection unit is arranged on the downstream side of the filtration cartridge, iron rust and the like do not flow in, and the iron rust does not get caught in the plurality of blades of the water turbine and stop rotating. As a result, it was possible to correctly measure and integrate the flow rate of purified water and display the replacement time of the filtration cartridge.
  • the water purification pipe is located above the raw water flow path, and the magnetic switch holder of the flow rate detection unit is placed on the upper side of the water purification pipe, so there is no need to put your finger in the back and it takes time to assemble.
  • the manufacturing cost was reduced without reducing the assembly efficiency. Since the magnetic switch holder was not placed outside the water purification pipeline, the width of the water purifier did not increase, making it easier for the water purifier user to see when washing the dishes.
  • the liquid crystal display was placed in the upper part of the front of the main body, and was erected by tilting it backward with an inclination of 32 degrees with respect to the axis of the flow path switching valve main body. Since the liquid crystal display did not protrude toward you, the discharge state of the raw water shower was not difficult to see, and the surface of the dish was not difficult to see when washing the dishes.
  • the liquid crystal display was displayed to indicate the remaining life of the filtration cartridge, and at the same time, the backlight was turned on for 7 seconds.
  • a blue backlight was turned on when the remaining life was 300 to 600 L
  • a green backlight was turned on when the remaining life was 150 to 300 L
  • a pink backlight was turned on when the remaining life was 0 to 150 L. The user who saw the pink backlight realized that the filtration cartridge had to be replaced.
  • a raw water flow path connecting the raw water supply port for supplying raw water to the filtration cartridge and the raw water flow path of the flow path switching valve main body is provided behind the flow path switching valve main body, and the water turbine and the water turbine of the flow rate detection unit are provided in the raw water pipeline.
  • a support member was provided so that the water wheel could rotate due to the passage of raw water. Although the flow rate of raw water could be measured, it often happened that iron rust was caught on the blades of the turbine and it stopped rotating.
  • a raw water flow path connecting the raw water supply port for supplying raw water to the filtration cartridge and the raw water flow path of the flow path switching valve main body is provided behind the side portion of the flow path switching valve main body.
  • a purified water flow path connecting the purified water inlet and the purified water outlet that receive purified water from the filtration cartridge was provided. Since the central axis of the raw water flow path and the central axis of the purified water flow path were parallel, it was easy to manufacture the mold.
  • the water purifying pipeline was provided with a water wheel of the flow rate detection unit and a water wheel support member so that the water wheel could rotate due to the passage of purified water.
  • the magnetic switch holder had to be placed outside the water purification pipeline, and the width of the water purifier became large. As a result, when the user of the water purifier washes the dishes, it became difficult to see at hand. In addition, in assembling, it is necessary to put a finger in a deep place, which is troublesome and reduces the assembling efficiency.
  • the liquid crystal display was placed in the upper part of the front of the main body, and was erected by tilting it backward with an inclination of 60 degrees with respect to the axis of the flow path switching valve main body.
  • the liquid crystal display was easy to see, but because it overhanged toward you, it became difficult to see the discharge state of the raw water shower, and it became difficult to see the surface of the dish when washing the dish.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

Le purificateur d'eau (1) du type à raccordement direct au robinet de l'invention comprend une vanne de commutation du trajet d'écoulement (13) dotée d'un orifice d'entrée d'eau brute (28) par lequel l'eau brute est acceptée, une cartouche de filtration (3) qui purifie l'eau brute, un orifice de sortie d'eau pure (19) par lequel l'eau pure est évacuée, une canalisation d'eau brute (20) qui relie la vanne de commutation de trajet d'écoulement à la cartouche de filtration, et une canalisation d'eau pure (30) qui relie la cartouche de filtration à l'orifice de sortie d'eau pure, une unité de détection de débit (102) étant disposée dans la canalisation d'eau pure, et la canalisation d'eau pure étant installée au-dessus de la canalisation d'eau brute.
PCT/JP2021/046889 2020-12-21 2021-12-17 Épurateur d'eau avec raccordement direct au robinet WO2022138517A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR2020237000018U KR20230001485U (ko) 2020-12-21 2021-12-17 수도꼭지 직결형 정수기
CN202190000925.XU CN220684756U (zh) 2020-12-21 2021-12-17 水龙头直接连结型净水器

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2020211055A JP2022097853A (ja) 2020-12-21 2020-12-21 蛇口直結型浄水器
JP2020211054A JP2022097852A (ja) 2020-12-21 2020-12-21 蛇口直結型浄水器
JP2020-211055 2020-12-21
JP2020-211054 2020-12-21

Publications (1)

Publication Number Publication Date
WO2022138517A1 true WO2022138517A1 (fr) 2022-06-30

Family

ID=82157843

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/046889 WO2022138517A1 (fr) 2020-12-21 2021-12-17 Épurateur d'eau avec raccordement direct au robinet

Country Status (2)

Country Link
KR (1) KR20230001485U (fr)
WO (1) WO2022138517A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04244285A (ja) * 1991-01-10 1992-09-01 Hitachi Ltd 浄水器
JPH07132283A (ja) * 1993-11-09 1995-05-23 Hitachi Ltd 蛇口直結形浄水器
JP2004344888A (ja) * 2004-08-27 2004-12-09 Toray Ind Inc 浄水器
JP2005111476A (ja) * 2001-12-28 2005-04-28 Mitsubishi Rayon Co Ltd 浄水器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001179244A (ja) 1999-12-27 2001-07-03 Techno Excel Co Ltd 浄水器
JP3731530B2 (ja) 2000-12-06 2006-01-05 東レ株式会社 浄水器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04244285A (ja) * 1991-01-10 1992-09-01 Hitachi Ltd 浄水器
JPH07132283A (ja) * 1993-11-09 1995-05-23 Hitachi Ltd 蛇口直結形浄水器
JP2005111476A (ja) * 2001-12-28 2005-04-28 Mitsubishi Rayon Co Ltd 浄水器
JP2004344888A (ja) * 2004-08-27 2004-12-09 Toray Ind Inc 浄水器

Also Published As

Publication number Publication date
KR20230001485U (ko) 2023-07-24

Similar Documents

Publication Publication Date Title
CN101795977B (zh) 用于安装在水龙头上的水过滤系统的装置和方法
KR100870160B1 (ko) 정수기
US20040069696A1 (en) Single-use long-life faucet-mounted water filtration devices
KR20170072356A (ko) 사용 시점 수처리 시스템
WO2022138517A1 (fr) Épurateur d'eau avec raccordement direct au robinet
JP2022097852A (ja) 蛇口直結型浄水器
JP2022097853A (ja) 蛇口直結型浄水器
JP2004344888A (ja) 浄水器
JP2023007564A (ja) 蛇口直結型浄水器
JP3951724B2 (ja) 浄水器
JP3371335B2 (ja) 蛇口直結型浄水器
JP5059302B2 (ja) 浄水装置
JP2007083209A (ja) 浄水フィルタ及び浄水フィルタ用自立性筒状中空体の製造方法
JP3399473B2 (ja) 浄水器
JP3365414B1 (ja) 浄水器
JP3951723B2 (ja) 蛇口直結型浄水器
JP5160011B2 (ja) 蛇口直結型浄水器
JP3731530B2 (ja) 浄水器
JP2003211156A (ja) 浄水器
JP2003039062A (ja) 浄水器
KR200363662Y1 (ko) 소금재생통이 교환장착되는 연수기용 필터
JP3379528B2 (ja) 流量計およびろ過装置
JP3371334B2 (ja) 浄水器
JP2002210459A (ja) 蛇口直結型浄水器
JPH05115869A (ja) 浄水器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21910662

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202190000925.X

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21910662

Country of ref document: EP

Kind code of ref document: A1