WO2011096570A1 - 浄水器及び浄水器の表示ユニット - Google Patents
浄水器及び浄水器の表示ユニット Download PDFInfo
- Publication number
- WO2011096570A1 WO2011096570A1 PCT/JP2011/052585 JP2011052585W WO2011096570A1 WO 2011096570 A1 WO2011096570 A1 WO 2011096570A1 JP 2011052585 W JP2011052585 W JP 2011052585W WO 2011096570 A1 WO2011096570 A1 WO 2011096570A1
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- WO
- WIPO (PCT)
- Prior art keywords
- water
- flow rate
- raw water
- filtration cartridge
- water purifier
- Prior art date
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Classifications
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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
- C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/10—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/10—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission
- G01F1/115—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission with magnetic or electromagnetic coupling to the indicating device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/12—Cleaning arrangements; Filters
- G01F15/125—Filters
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/006—Cartridges
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/44—Time
- C02F2209/445—Filter life
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/06—Mounted on or being part of a faucet, shower handle or showerhead
Definitions
- the present invention relates to a faucet direct-coupled water purifier used by being attached to a faucet, and a display unit thereof.
- This application claims priority based on Japanese Patent Application No. 2010-25947 for which it applied to Japan on February 8, 2010, and uses the content here.
- a faucet directly connected water purifier that is attached to a faucet has a raw water discharge port that discharges raw water as it is, a shower discharge port that discharges raw water in a shower, and a purified water discharge port that discharges purified water, respectively.
- a discharge mode to be used can be selected by a switching operation.
- the faucet-directly connected water purifier is detachably equipped with a filtration cartridge for filtering raw water, and can be replaced when the filtration performance is lowered.
- This filtration cartridge has a problem that the performance degradation is accelerated as the use frequency of the purified water increases. Therefore, when the replacement period of the filtration cartridge is defined by the period of use, there is a problem that it is difficult to optimize the replacement cycle. Therefore, in recent years, it has been proposed to optimize the exchange cycle by displaying the optimum replacement time of the filtration cartridge by measuring the amount of purified water used by installing a flow meter in the faucet directly connected water purifier ( For example, see Patent Document 1).
- the above-mentioned conventional water purifier increases the number of parts and increases the size of the display unit that displays the optimal replacement time of the flow meter and the filtration cartridge, and the display unit is an electronic component.
- the number of assembling steps increases, such as waterproofing of the control board for performing flow rate detection processing, and the burden on the assembling worker increases.
- the present invention has been made in view of the above circumstances, and while being able to display information related to the replacement timing of the filtration cartridge based on the flow rate, it is possible to reduce the size and reduce the burden on the operator by suppressing an increase in assembly man-hours. It is an object of the present invention to provide a device that integrates a display unit that is the electronic component and a control board that performs flow rate detection processing, has excellent waterproofness and sealing performance, prevents condensation, and a water purifier having this device. To do.
- the present invention includes matters described in the following items (1) to (10).
- An inlet for receiving raw water for example, an inlet 4 in an embodiment described later
- a filtration cartridge for filtering the raw water received from the inlet for example, a filtration cartridge 3 in an embodiment described later
- filtration A water purifier having a discharge port (for example, the purified water discharge port 3a in the embodiment) for discharging the purified water, and a raw water passage (for example, described later) for sending the raw water received from the inflow port to the filtration cartridge
- a flow rate detection unit that detects a flow rate (for example, the flow rate detection unit 23 in the embodiment described later), and the filtration based on the detection result of the flow rate detection unit
- Display unit for displaying information about the exchange timing of the cartridges
- the above “raw water passage for sending raw water received from the inlet to the filtration cartridge or purified water passage for sending purified water from the filtration cartridge to the purified water discharge port” Is the “raw water channel for sending the raw water received from the inlet to the filtration cartridge”, and “the flow rate of the raw water flowing into the filtration cartridge through the raw water channel or the purified water passing through the purified water channel” Is a water purifier which is “the flow rate of raw water flowing into the filtration cartridge via the raw water passage”.
- an inlet for receiving raw water for example, inlet 4 in the embodiment described later
- a filtration cartridge for filtering raw water received from the inlet for example, filtration cartridge 3 in the embodiment described later
- filtered purified water In a water purifier provided with a discharge port (for example, a purified water discharge port 3a in an embodiment described later), a raw water channel (for example, a raw water channel in an embodiment described later) that sends raw water received from the inflow port to the filtration cartridge.
- a flow rate detection unit for detecting the flow rate of the raw water flowing into the filtration cartridge via the raw water channel for example, the flow rate detection unit 23 in the embodiment described later
- the detection result of the flow rate detection unit A display unit (for example, display unit 22 in the embodiment described later) that displays information related to the replacement timing of the filtration cartridge; Water purifier comprising provided body formed.
- the flow rate detector includes an impeller (for example, the impeller 24 in the embodiment) whose rotation speed changes according to the amount of water flow, and the impeller A water purifier including a rotation detection unit (for example, the rotation detection unit 25 in the embodiment) that detects the number of rotations of the vehicle, and the impeller is installed in the water passage.
- an impeller for example, the impeller 24 in the embodiment
- the impeller A water purifier including a rotation detection unit (for example, the rotation detection unit 25 in the embodiment) that detects the number of rotations of the vehicle, and the impeller is installed in the water passage.
- the water purifier according to (1) to (3) includes one waterproof case (for example, a waterproof case 30 in an embodiment described later), the display includes a liquid crystal display, and the waterproof A liquid crystal cover portion (for example, the liquid crystal cover portion 50 in the embodiment described later) that covers the liquid crystal display portion of the display portion is attached to the case portion by welding, and a power supply harness (for example, a lower portion than the liquid crystal cover) A drawer portion (for example, a drawer portion 46 in the embodiment described later) for pulling out the harness 44) in the embodiment described later to the outside of the waterproof case portion is provided, and the drawer portion is positioned above the lowest part of the raw water passage. Water purifier that is waterproofed.
- the drawer portion fixes the harness with a solid sealing material (for example, rubber packing 47 in an embodiment described later), and various curable liquid sealing materials.
- a water purifier that is waterproofed by filling for example, a sealing material 48 in an embodiment described later.
- the waterproof case portion and a battery box (for example, a battery box 52 in an embodiment described later) that holds the battery are sandwiched between the raw water passages.
- the water purifier formed by connecting the harness drawn out from the waterproof case part to the battery box through the lower side of the raw water passage.
- liquid crystal cover part is a water purifier body including the inflow port (for example, the water purifier body 2 in the embodiment). It is arranged to be exposed at a position between the front inlet and the filtration cartridge.
- a battery storage unit can be electrically connected through an opening between at least one of the flow rate detection unit and the display unit and the battery in the battery storage unit.
- the water purifier according to item (1), (2), (3), (7) or (8) formed integrally.
- a display unit that is used in a water purifier that filters raw water to be purified with a filtration cartridge to obtain purified water, and displays information related to the replacement timing of the filtration cartridge.
- the flow rate detection unit that detects the flow rate of the water passing through the water passage and the display unit that displays information on the replacement timing of the filtration cartridge based on the detection result of the flow rate detection unit are integrally formed. Display unit.
- a display unit that displays information related to the replacement timing of the filtration cartridge
- a flow rate detection unit that detects the flow rate of raw water or purified water
- the raw water passageway between the inlet and the filtration cartridge or the purified water passageway between the filtration cartridge and the purified water discharge port are integrally formed to provide a display unit, a flow rate detection unit, and Compared to the case where water passages are provided individually, the number of parts can be reduced, and the waterproof structure of the display unit and flow rate detection unit can be shared. Realizes downsizing of the main body and excellent design while enabling display, suppresses the increase in assembly man-hours, and is excellent in waterproofing and sealing of the display unit and flow rate detection unit, and can prevent condensation
- the relative position between the rotation detection unit that detects the rotation of the impeller and the impeller is not always changed by arranging the impeller in the water passage,
- the displacement of the detection value due to the displacement of the relative position between the impeller and the rotation detection unit can be suppressed, and the reliability of the flow rate detection can be improved.
- the liquid crystal cover portion disposed relatively above is attached by welding, so that even if the welding is insufficient, the inundation due to water from above is prevented.
- the harness by pulling out the harness from the downward drawer, it is possible to prevent water from entering the waterproof case from the drawer due to water from above even if the waterproofing of the drawer is insufficient. Therefore, waterproof reliability can be improved.
- the harness can be fixed in the inserted state using a solid sealing material, and the liquid sealing material can be filled in this fixed state, the harness is fixed.
- the waterproofing can be easily performed as compared with the case where the sealing material is filled in a state where the sealing material is not filled.
- the waterproof structure can be doubled by filling the sealing material and the liquid sealing material, there is an effect that the water tightness can be further improved.
- the waterproof case part and the battery box are arranged opposite to each other across the raw water passage, so that the harness can be easily cabling at a relatively short distance.
- the space below the raw water canal can be used effectively as a space for harness routing, so that further downsizing can be achieved compared to the case where a separate space for harness routing is provided. There is an effect that can.
- the flow rate can be stably measured. is there.
- the display content of the display unit can be confirmed at a position easily visible between the inflow port and the filtration cartridge, so that the merchantability can be improved. effective.
- the display unit and the flow rate detection unit are more excellent in waterproofness and sealing performance, Condensation can be prevented.
- this device is combined not only with the water purifier as described in the items (1) and (2) but also with a filtration cartridge of a stationary water purifier or an undersink water purifier.
- a display unit that displays information related to the replacement timing of the filtration cartridge, (ii) a flow rate detection unit that detects the flow rate of raw water or purified water, and (iii) a raw water channel between the inlet and the filtration cartridge, or
- a display unit, a flow rate detection unit, and a water passage are provided individually. Compared to the case, the number of parts can be reduced, and the waterproof structure of the display unit and flow rate detection unit can be shared, so information on the replacement timing of the filtration cartridge is displayed.
- FIG. 3 is a cross-sectional view taken along line AA in FIG. 2.
- FIG. 3 is a sectional view taken along line BB in FIG. 1.
- the water purifier 1 is attached to the faucet J so that the longitudinal direction of the water purifier 1 is perpendicular to the extending direction of the arm portion Ja of the faucet J.
- the front-rear direction and the left-right direction viewed from the front of the faucet J, that is, the user standing on the extension line of the arm portion Ja, are referred to as the front-rear direction and the left-right direction of the water purifier 1.
- the water purifier 1 of this embodiment is attached with a substantially cylindrical filtration cartridge 3 extending upward on the left side of the water purifier main body 2 extending in the horizontal direction, and is substantially L-shaped in front view. Presents.
- the water purifier main body 2 is formed with an inlet 4 for receiving raw water at the upper portion thereof, and this inlet 4 is fixed to the faucet J via a ring-shaped mounting jig 5. Further, on the lower surface of the water purifier main body 2, a discharge port (not shown) for discharging the raw water as it is is formed on the substantially extended line of the inlet 4 described above, and a plurality of shower holes are provided around the raw water discharge port. An annular shower outlet (not shown) is formed. By providing the raw water discharge port with the concave side of the curved mesh facing each other, the water is rectified by staying between the temporary meshes. Further, a purified water discharge port 3 a for discharging purified water is formed at the lower part of the filtration cartridge 3.
- a flow path switching mechanism K (see FIG. 2) including a rotary valve, a ball valve, and the like for switching the path and the flow path from the inlet 4 to the filtration cartridge 3 is disposed.
- the flow switching mechanism K is linked to a switching operation unit 6 formed at the end of the water purifier body 2 opposite to the filtration cartridge 3.
- the switching operation part 6 has a rotating shaft 7 in the horizontal direction, and its front part can swing in the vertical direction (in the direction of the arrow in FIG. 1).
- the operation position of the switching operation part 6 (upper / middle) -Each flow path is switched by the flow path switching mechanism according to the bottom.
- the filtration cartridge 3 can be attached to and detached from the support portion 8 provided at the end of the water purifier main body 2 on the opposite side to the switching operation portion 6, and the filtration cartridge 3 is attached to the support portion 8 to be engaged.
- the inlet (not shown) of the filtration cartridge 3 is connected to the flow path extending from the inlet 4 to the filtration cartridge 3.
- the filtration cartridge 3 includes an inner case 9 in which a filter (for example, a hollow fiber membrane) for purifying raw water and an adsorbent (for example, activated carbon) is housed, and the raw water flowing from the inlet of the filtration cartridge 3 It passes between the case 9 and the outer case 10 that covers the outside thereof, flows into the inner case 9 from the upper part of the inner case 9, and is purified by an adsorbent or a filter while flowing downward, and the filtration cartridge 3 Is discharged as purified water from the purified water discharge port 3a.
- the purified water discharge port 3a that discharges purified water at the time of cartridge replacement is also replaced, and there is an effect that hygiene can be maintained.
- an ion exchange resin or the like may be incorporated as appropriate.
- the water purifier main body 2 includes upper and lower outer casings 12 and 13, and an inclined surface 14 that faces obliquely upward is formed on the front side of the upper outer casing 12.
- a substantially rectangular display opening 15 is formed on the inclined surface 14 at a position between the inlet 4 and the filtration cartridge 3. The position where the display opening 15 is formed, that is, the inlet 4 and the filtration cartridge 3.
- the display unit Y is built in the exterior cases 12 and 13 between the two.
- the display unit Y includes a liquid crystal display 20 that can be seen through the display opening 15 and a display unit 22 that includes a display control board 21 that performs display control of the liquid crystal display 20.
- a flow rate detector 23 that detects the integrated flow rate of the raw water flowing into the filtration cartridge 3 is integrally provided.
- the display unit 22 displays, for example, integrated flow rate information of raw water flowing into the filtration cartridge 3 on the liquid crystal display 20 as information for notifying the user of the life of the filtration cartridge 3.
- the flow rate detector 23 has a magnet inside and rotates with an axial flow impeller 24 that rotates at a speed corresponding to the flow rate of fluid flowing from upstream to downstream, and is displaced as the impeller 24 rotates.
- a rotation detection unit 25 that detects the magnetic flux density and a sensor substrate 26 that calculates the integrated flow rate based on the detection result of the rotation detection unit 25 are configured to display information on the calculation result of the integrated flow rate by the sensor substrate 26. To 21. The calculation may be performed on the display control board 21 side.
- the display unit Y is integrally provided with a waterproof case 30 made of resin and a substantially cylindrical raw water passage 31 that forms a flow path between the inlet 4 and the filtration cartridge 3.
- the waterproof case portion 30 is formed with an upper opening portion 32 that opens along the inclined surface 14 of the outer case 12 described above, and a relatively large width display portion is accommodated on the upper opening portion 32 side of the waterproof case portion 30.
- a portion 33 is formed, and a detection portion storage portion 34 having a relatively small width dimension is formed on the opposite side of the waterproof case portion 30 from the upper opening portion 32.
- the display unit storage unit 33 has a width according to the size of the display control board 21, and a support part (not shown) that supports the peripheral part of the display control board 21 is formed therein. Further, the detection unit storage unit 34 communicates with the display unit storage unit 33 and is set to a width dimension corresponding to the dimension of the sensor substrate 26 that is narrower than the display control board 21.
- a support portion (not shown) for supporting the peripheral edge portion is formed. And the bottom wall of the detection part storage part 34 and the raw
- the raw water passage 31 forms part of a flow path for sending raw water to the filtration cartridge 3 and supports the impeller 24 of the flow rate detection unit 23 described above inside.
- a substantially plate-like rectifying rib 36 that rectifies the flow of the raw water is formed at the inlet 35 of the raw water passage 31, that is, upstream of the impeller 24.
- the rectifying rib 36 is formed integrally with the raw water passage 31 and is disposed across the diameter direction of the inlet 35 of the raw water passage 31 having a substantially circular cross section.
- the shape of the rectifying rib 36 is not limited to the above shape as long as it has a rectifying function.
- the raw water channel 31 is provided with plugs 38 and 39 formed in steps at the inlet 35 and the outlet 37, respectively, and the upstream plug 38 is inserted into the outlet (not shown) of the flow path switching mechanism K.
- the downstream insertion portion 39 is inserted and connected to the inlet (not shown) of the support portion 8 with which the filtration cartridge 3 is engaged.
- O-rings 40 and 41 are attached to the insertion portions 38 and 39, respectively, so that sufficient water tightness can be obtained at the connection portions.
- the outlet 37 of the raw water passage 31 described above is formed to have a larger channel cross-sectional area than the inlet 35.
- a substantially cylindrical shape having an insertion hole 45 for inserting a power supply harness 44 in the state of being stored in the water purifier main body 2 at the bottom of the display unit storage unit 33 of the waterproof case unit 30.
- a lead-out portion 46 is formed.
- the insertion hole 45 is disposed at a position below the liquid crystal cover portion 50 described later and above the lowermost portion 31 a of the raw water passage 31.
- the lead-out portion 46 protrudes downward, more specifically, in an oblique rear direction perpendicular to the inclined surface 14, and a rubber for fixing the harness 44 and securing water tightness in the lead-out portion 46.
- a packing 47 is attached, and a liquid sealing material 48 such as a UV curable resin is filled outside the rubber packing 47.
- the waterproof case unit 30 stores the rotation detection unit 25 and the sensor substrate 26, the display control substrate 21 and the liquid crystal display 20 in this order from the upper opening 32.
- the liquid crystal display 20, the display control board 21, and the sensor board 26 are arranged in a substantially parallel state and in a substantially parallel state with the inclined surface 14 of the outer case.
- a transparent liquid crystal cover 50 is disposed so as to cover the liquid crystal display 20, and the liquid crystal cover 50 is welded to the periphery of the upper opening 32 to close the upper opening 32. It becomes.
- a signal line S for transmitting and receiving information on the integrated flow rate is connected in advance between the sensor board 26 and the display control board 21, and a harness 44 that supplies power to each of the boards 21 and 26 is further provided with a drawing portion 46. Is inserted.
- the liquid crystal cover part 50 is provided with a convex part 51 fitted to the display opening 15 on the outer surface side, and the convex part 51 is fitted into the display opening part 15 of the water purifier main body 2 so that the liquid crystal cover part 50 is fitted.
- the waterproof case part 30 is positioned relative to the display opening 15 and the liquid crystal display 20 housed in the waterproof case part 30.
- the upper surface of the convex portion 51 is a smooth surface that is substantially flush with the periphery of the display opening portion 15 in a state where the convex portion 51 is fitted in the display opening portion 15. Exposed.
- the water purifier main body 2 is provided with a battery box 52 for storing a battery such as a button battery on the opposite side of the waterproof case 30 across the raw water passage 31.
- the battery box 52 includes a lid 53 on the rear side of the water purifier body 2, and the lid 53 is detachably engaged with a shallow and substantially bottomed cylindrical box body 54.
- a button battery is built in the state which followed the radial direction to the up-down direction.
- the battery box 52 is connected to a harness 44 drawn from the waterproof case 30 and routed through the lower portion of the raw water passage 31.
- the routing route of the harness 44 is not limited to the above route, and if the empty space around the raw water channel 31 is passed, For example, it may be routed above the raw water channel 31.
- the display unit 22 that displays information regarding the replacement timing of the filtration cartridge 3, the flow rate detection unit 23 that detects the flow rate of raw water, the inlet 4, and the filtration cartridge 3.
- the number of parts is reduced by providing the raw water channel 31 therebetween.
- the waterproof structure of the display unit 22 and the flow rate detection unit 23 can be shared, it is possible to display information related to the replacement timing of the filtration cartridge 3 while reducing the size of the water purifier. An increase in assembly man-hours can be suppressed.
- the waterproofness of the display part 22 and the flow volume detection part 23, sealing performance, and dew condensation prevention property can be improved.
- the flow detection unit 23 and the raw water passage 31 are integrally provided, and the impeller 24 is disposed in the raw water passage 31, so that the rotation detection unit 25 and the impeller 24 that detect the rotation of the impeller 24 are provided. Since the relative position of the impeller 24 and the rotation detection unit 25 does not always change, the displacement of the detection value due to the displacement of the relative position of the impeller 24 and the rotation detection unit 25 is suppressed, and the reliability of the flow rate detection can be improved. it can.
- the harness 44 is fixed in the inserted state to the drawer portion 46 using the rubber packing 47, and the liquid sealing material 48 is filled in this fixed state, so that the harness 44 is not fixed.
- the waterproofing can be easily performed as compared with the case where the stopper 48 is filled. Further, since the waterproof structure can be constructed in a double manner by filling the rubber packing 47 and the liquid sealing material 48, the watertightness can be further improved.
- the harness 44 can be easily routed at a relatively short distance, and the raw water passage 31 Since the lower space can be effectively used as a space for wiring the harness 44, further downsizing can be achieved as compared with the case where a space for wiring the harness 44 is provided separately. At this time, it is preferable to arrange the harnesses 44 on both the waterproof case 30 side and the battery box 52 side so that the drawers face downward.
- the flow rate can be stably measured.
- the content displayed on the liquid crystal display 20 of the display part 22 can be confirmed via the display opening part 15 in the position which is easy to visually recognize between the inflow port 4 and the filtration cartridge 3, improvement of merchantability is achieved. Can be achieved.
- invention of this water purifier is not limited to the water purifier 1 of embodiment mentioned above, A various design change is possible in the range which does not deviate from the summary.
- the arrangement is not limited to being substantially parallel, and the arrangement of the sensor board 26 may be changed as appropriate.
- the display control of the sensor board 26 is performed.
- the display control board 21 and the sensor board 26 may be formed integrally, In this case, further miniaturization can be achieved.
- the present invention is further a display unit that is used in a water purifier that purifies raw water to be purified with a filtration cartridge to obtain purified water, and displays information related to the replacement timing of the filtration cartridge, the raw water or purified water.
- a water passage, a flow rate detection unit that detects the flow rate of water passing through the water flow channel, and a display unit that displays information related to the replacement timing of the filtration cartridge based on the detection result of the flow rate detection unit are integrally formed.
- a display unit is provided. This is the invention of item (10) of the present invention. This one actual form is the same as that shown in FIGS. 6 and 7, the same numerical symbols as those in FIGS. 3 and 4 represent the same meaning as those in FIGS. Another embodiment of the display unit of the present invention is shown in FIG. In FIG. 5, the same numerical symbols as those in FIG. 3 represent the same meanings as those in FIG.
- 2 water purifier main body
- 3 filtration cartridge
- 3a purified water discharge port (discharge port)
- 4 inflow port
- 22 display unit
- 23 flow rate detection unit
- 24 impeller
- 25 rotation detection unit
- 30 Waterproof case part
- 31 Raw water passage
- 36 Rectification rib
- 44 Harness
- 46 Drawer part
- 47 Rubber packing (sealing material)
- 48 Sealing material
- 50 Liquid crystal cover part
- 52 Battery box
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- Hydrology & Water Resources (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Treatment Of Water By Ion Exchange (AREA)
Abstract
Description
本願は、2010年2月8日に日本に出願された特願2010-25947号に基づき優先権を主張し、その内容をここに援用する。
この発明は上記事情に鑑みてなされたものであり、流量に基づきろ過カートリッジの交換タイミングに関する情報を表示可能としつつ、小型化を図るとともに組立工数の増加を抑制して作業者の負担を軽減し、前記電子部品である表示部や流量検出処理を行う制御基板を一体化してそれらの防水性、密閉性に優れ、結露を防止した装置、及びこの装置を有する浄水器を提供することを課題とする。
(1) 原水を受け入れる流入口(例えば、後記実施形態(embodiment)における流入口4)と、該流入口から受け入れた原水をろ過するろ過カートリッジ(例えば、後記実施形態におけるろ過カートリッジ3)と、ろ過済みの浄水を吐出する吐出口(例えば、実施形態における浄水吐出口3a)とを備えた浄水器であって、前記流入口から受け入れた原水を前記ろ過カートリッジへ送る原水通水路(例えば、後記実施形態における原水通水路31)又はろ過カートリッジを出た浄水を前記浄水吐出口へ送る浄水通水路と、該原水通水路を介して前記ろ過カートリッジへ流入する原水又は前記浄水通水路を通過する浄水の流量を検出する流量検出部(例えば、後記実施形態における流量検出部23)と、該流量検出部の検出結果に基づき前記ろ過カートリッジの交換タイミングに関する情報を表示する表示部(例えば、後記実施形態における表示部22)とを一体的に形成して設けてなる浄水器。
即ち、原水を受け入れる流入口(例えば、後記実施形態における流入口4)と、該流入口から受け入れた原水をろ過するろ過カートリッジ(例えば、後記実施形態におけるろ過カートリッジ3)と、ろ過済みの浄水を吐出する吐出口(例えば、後記実施形態における浄水吐出口3a)とを備えた浄水器において、前記流入口から受け入れた原水を前記ろ過カートリッジへ送る原水通水路(例えば、後記実施形態における原水通水路31)と、該原水通水路を介して前記ろ過カートリッジへ流入する原水の流量を検出する流量検出部(例えば、後記実施形態における流量検出部23)と、該流量検出部の検出結果に基づき前記ろ過カートリッジの交換タイミングに関する情報を表示する表示部(例えば、後記実施形態における表示部22)とを一体的に形成して設けてなる浄水器。
また、防水ケース部内にポッティング材などの絶縁樹脂を充填することなしに、防水ケース部の十分な水密性を確保することができるため、ポッティング材を防水ケース部内に充填する場合と比較して組立作業者の負担を軽減できる。
また、シール材と液状の封止材の充填とにより2重に防水構造を構築することができるので、さらなる水密性の向上を図ることができる効果がある。
項(9)に記載した浄水器によれば、配線(ハーネス)をシール材や封止材を経由して引き出す必要がないので、表示部及び流量検出部の防水性、密閉性に一層優れ、結露を防止することができる。
項(10)に記載した表示ユニットによれば、この装置を、項(1)、(2)のような浄水器のみならず、据え置き型浄水器やアンダーシンク型浄水器のろ過カートリッジと組み合わせることにより、(i)ろ過カートリッジの交換タイミングに関する情報を表示する表示部、(ii)原水又は浄水の流量を検出する流量検出部、及び(iii)流入口とろ過カートリッジとの間の原水通水路又はろ過カートリッジと浄水吐出口との間に浄水通水路との間の浄水通水路を一体的に形成して設けていることで、それぞれ表示部、流量検出部、および通水路を個別に設けている場合と比較して、部品点数を削減することができ、さらに表示部、流量検出部の防水構造を共通化することができるので、ろ過カートリッジの交換タイミングに関する情報を表示可能にし、上記(i)、(ii)及び(iii)の小型化と優れたデザイン性を実現し、組立工数の増加を抑制し、更に、表示部及び流量検出部の防水性、密閉性に優れ、結露を防止することができる。
なお、内部ケース9にフィルタや吸着材を内蔵する場合について述べたが、例えばイオン交換樹脂等を適宜内蔵するようにしてもよい。
表示部22は、ろ過カートリッジ3の寿命をユーザに知らせるための情報として、例えばろ過カートリッジ3へ流入した原水の積算流量情報などを液晶ディスプレイ20に表示する。
また、防水ケース部30内にポッティング材などの絶縁樹脂を充填することなしに、防水ケース部30の十分な水密性を確保することができるため、ポッティング材を防水ケース部30内に充填する場合と比較して組立作業者の負担を軽減できる。
また、ゴムパッキン47と液状の封止材48の充填とにより2重に防水構造を構築することができるので、さらなる水密性の向上を図ることができる。
そして、流入口4とろ過カートリッジ3との間の視認しやすい位置で、表示開口部15を介して表示部22の液晶ディスプレイ20に表示された内容を確認することができるため、商品性の向上を図ることができる。
例えば、上述した表示制御基板21とセンサ基板26とを略平行に配置する場合について説明したが、略平行に限られるものではなくセンサ基板26の配置を適宜変更してもよい。例えば、多様なデザインの浄水器に対応すべく、防水ケース部30に対する原水通水路31の位置を防水ケース部30の側壁側等に変更する場合であっても、例えば、センサ基板26を表示制御基板21と垂直に配置するなど、センサ基板26の位置を変更することで柔軟に対応することができる。
本発明の表示ユニットの他の実施形態を図5に示す。この図5において、図3と同じ数字符号は、図3のものと同じ意味を表す。
Claims (10)
- 原水を受け入れる流入口と、該流入口から受け入れた原水をろ過するろ過カートリッジと、ろ過済みの浄水を吐出する吐出口とを備えた浄水器であって、
前記流入口から受け入れた原水を前記ろ過カートリッジへ送る原水通水路又はろ過カートリッジを出た浄水を前記浄水吐出口へ送る浄水通水路と、該原水通水路を介して前記ろ過カートリッジへ流入する原水又は前記浄水通水路を通過する浄水の流量を検出する流量検出部と、該流量検出部の検出結果に基づき前記ろ過カートリッジの交換タイミングに関する情報を表示する表示部とを一体的に形成して設けてなる浄水器。 - 原水を受け入れる流入口と、該流入口から受け入れた原水をろ過するろ過カートリッジと、ろ過済みの浄水を吐出する吐出口とを備えた浄水器において、
前記流入口から受け入れた原水を前記ろ過カートリッジへ送る原水通水路と、該原水通水路を介して前記ろ過カートリッジへ流入する原水の流量を検出する流量検出部と、該流量検出部の検出結果に基づき前記ろ過カートリッジの交換タイミングに関する情報を表示する表示部とを一体的に形成して設けてなる浄水器。 - 前記流量検出部は、通水量に応じて回転数が変化する羽根車と、該羽根車の回転数を検知する回転検知部とを備え、前記羽根車は前記通水路に設置されている請求項1又は2に記載の浄水器。
- 一の防水ケース部を備え、前記表示部が液晶表示部を備え、該防水ケース部には、前記表示部の液晶表示部を覆う液晶カバー部が溶着で取り付けられ、電力供給用のハーネスを外部に引き出す下向きの引き出し部が設けられ、該引き出し部は、前記液晶カバーよりも下方、且つ、前記原水通水路の最下部よりも上方に配置されて防水処理がなされている請求項1又は2に記載の浄水器。
- 前記引き出し部は、固形のシール材により前記ハーネスを固定し、硬化型の液状の封止材を充填することで防水処理がなされている請求項4に記載の浄水器。
- 前記防水ケース部と、電池を収納する電池ボックスとを、前記原水通水路を挟んで対向配置し、前記防水ケース部から引き出された前記ハーネスを前記原水通水路の下方を通して前記電池ボックスへ接続してなる請求項4に記載の浄水器。
- 前記羽根車の上流側に整流リブを設けてなる請求項3に記載の浄水器。
- 前記液晶カバー部は、前記流入口を備えた浄水器本体の前面の前記流入口と前記ろ過カートリッジとの間の位置に露出して配置されている請求項4に記載の浄水器。
- 前記通水路、流量検出部、及び表示部の他に更に電池収納部を、前記流量検出部及び表示部の少なくとも一方と、電池収納部内の電池との間に開口を通じて電気接続出来るように、一体的に形成してなる請求項1又は2に記載の浄水器。
- 浄水とされるべき原水をろ過カートリッジでろ過して浄水とする浄水器に用いられ、前記ろ過カートリッジの交換タイミングに関する情報を表示する表示ユニットであって、前記原水又は浄水の通水路と、この通水路を通過する水の流量を検出する流量検出部と、この流量検出部の検出結果に基づき、前記ろ過カートリッジの交換タイミングに関する情報を表示する表示部とを一体的に形成してなる表示ユニット。
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