WO2011097083A1 - Mixing system and faucet sensor system for a touch free automatic faucet - Google Patents

Mixing system and faucet sensor system for a touch free automatic faucet Download PDF

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Publication number
WO2011097083A1
WO2011097083A1 PCT/US2011/022207 US2011022207W WO2011097083A1 WO 2011097083 A1 WO2011097083 A1 WO 2011097083A1 US 2011022207 W US2011022207 W US 2011022207W WO 2011097083 A1 WO2011097083 A1 WO 2011097083A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
water flow
motorized actuator
sensor
actuator mechanism
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2011/022207
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English (en)
French (fr)
Inventor
Chung-Chia Chen
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Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of WO2011097083A1 publication Critical patent/WO2011097083A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/05—Arrangements of devices on wash-basins, baths, sinks, or the like for remote control of taps
    • E03C1/055—Electrical control devices, e.g. with push buttons, control panels or the like
    • E03C1/057—Electrical control devices, e.g. with push buttons, control panels or the like touchless, i.e. using sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K19/00—Arrangements of valves and flow lines specially adapted for mixing fluids
    • F16K19/006—Specially adapted for faucets
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1842—Ambient condition change responsive

Definitions

  • the present invention generally relates to the field of automatic faucets. More particularly, the present invention relates to a mixing system and a faucet housing for a touch free automatic faucet.
  • the conventional automatic faucet is controlled with a single electronic sensor to toggle water on and off with a preset water temperature.
  • most applications such as kitchens, lavatories and commercial facilities require adjustments on water flow, temperature and continuous water flow services.
  • a water flow and temperature control mixing system for ; touch free automatic faucet.
  • the mixing system includes a cold water motorized actuator mechanism, a hot water motorized actuator mechanism, and a water flow mechanism.
  • the water flow mechanism comprises a hot water inlet connector and a cold water inlet connector to supply hot water and cold water, a solenoid valve, and a water outlet connector. The water is mixed in the water flow mechanism to obtain the desired temperature, and then directed through the solenoid valve and out of the water outlet connector.
  • An electronic logic processor is connected to the mixing system.
  • a faucet sensor system for a touch free automatic faucet includes a sensor housing, a plurality of sensor assemblies coupled to a sensor holding element and a securing nut within the sensor housing, and a faucet stationary base.
  • the plurality of sensor assemblies comprise a primary sensor assembly, a secondary sensor assembly, and a tertiary sensor assembly.
  • the secondary sensor assembly and the tertiary sensor assembly can be interchangeably placed on either side of the sensor housing. The interaction of the plurality of sensor assemblies allows the user of the touch free automatic faucet to control water temperature and flow rate.
  • FIG.1 illustrates a water flow and temperature control mixing system for a touch free automatic faucet according to a preferred embodiment
  • FIG.2 illustrates a side interior view of a water flow housing according to a preferred embodiment
  • FIG.3 illustrates a top interior view of the water flow housing shown in Fig. 2 according to a preferred embodiment
  • FIG.4 illustrates another side interior view of the water flow housing shown in Fig. 2 according to a preferred embodiment
  • FIG.5 illustrates an exploded view of the water flow and temperature control mixing system shown in Fig. 1 according to a preferred embodiment
  • FIG.6 illustrates an exploded view of a faucet sensor system according to a preferred embodiment
  • FIG.7 illustrates a transparent view of a sensor housing for the faucet sensor system shown in FIG. 6 according to a preferred embodiment.
  • a first preferred embodiment of a water flow and temperature mixing system is designated by the reference numeral 10.
  • the mixing system 10 comprises a hot water motorized actuator mechanism 503, a cold water motorized actuator mechanism 502, and a water flow mechanism 501.
  • the water flow mechanism 501 comprises a water flow housing 500, hot water inlet connector 508, a cold water inlet connector 507, a water outlet connector 509, and a solenoid valve housing 504.
  • the water flow housing includes a first tubular portion 517 and a second tubular portion 518.
  • the mixing system 10 defines an axis "A," a distal end 20, a proximal end 22, a hot water side 24 and a cold water side 26.
  • the hot water and cold water inlet connectors 508 and 507, and the outlet connector 509 are generally parallel to the axis A.
  • the hot water motorized actuator mechanism 503 is preferably located side-by-side to the cold water motorized actuator mechanism 502 adjacent to the distal end 20, and both motorized actuator mechanisms 502 and 503 are coupled to the water flow mechanism 501.
  • the cold water inlet connector 507 is coaxial to the first tubular portion 517 and the cold water motorized actuator mechanism 502.
  • the hot water inlet connector 508 is coaxial to the second tubular portion 518 and the hot water motorized actuator mechanism 503.
  • the solenoid valve housing 504 is placed coaxial to axis A, in front of and in between the hot water and cold water motorized actuator mechanisms 503 and 502.
  • the solenoid valve housing 504 in the preferred embodiment is centrally located in that it is positioned medially between the hot water side 24 and the cold water side 26, as well as in between the distal end 20 and the proximal end 22.
  • the solenoid valve housing 504 includes a water outlet connector 509, coaxially placed along the axis A and in parallel to the hot water inlet connector 508 and the cold water inlet 507.
  • FIG. 2 illustrates a cross-sectional view of the preferred embodiment of the water flow mechanism 501 taken along a cross-sectional line 2-2 of FIG. 3.
  • Cold water 104 enters the water flow mechanism 501 through the cold water inlet connector 507 at the proximal end 22, which is coaxial to a cold water flow valve 535 in parallel to the axis A.
  • the cold water inlet connector 507 and the coaxial cold water flow valve 535 collectively form a cold water passage way 541.
  • Hot water 105 enters the water flow mechanism 501 through the hot water inlet connector 508 at the proximal end 22, which is coaxial to a hot water flow valve 536 in parallel to the axis A.
  • the hot water inlet connector 508 and the coaxial hot water flow valve 536 collectively form a hot water passage way 542.
  • a water mixing chamber 510 is disposed within the water flow mechanism 501, between the cold water passage way 541 and the hot water passage way 542.
  • the incoming cold water 104 enters the water mixing chamber 510 through the cold water passage way 541 and an opening 543 disposed in the cold water flow valve 535.
  • the incoming hot water 105 enters the mixing chamber 510 through the hot water passage way 542 and an opening 544 disposed in the hot water flow valve 536.
  • a valve (505) see Fig.
  • valve 505 and the hot water flow valve 506 are preferably cartridge valves, they may comprise ball valves, cylinder valves, or any other types of valves.
  • FIG. 3 illustrates a top interior view of the preferred embodiment of the water flow mechanism 501 with cross-sectional lines 2-2 and 4-4.
  • a bracket portion 539 and a bracket portion 540 are provided on the outside of the water flow housing 500 to help facilitate the securing of the water flow mechanism 501 to the hot water and cold water motorized actuator mechanisms 503 and 502 . (See also FIG. 5).
  • the bracket portion 539 is disposed at the distal end 20 of the first tubular portion 517 and coaxial to the stem portion 537 of the cold water motorized actuator mechanism 502 in parallel to the axis A.
  • the bracket portion 540 is disposed at the distal end 20 of the second tubular portion 518 and coaxial to the stem portion 538 of the hot water motorized actuator mechanism 503 in parallel to the axis A.
  • a water temperature sensor housing 592 is disposed within the water flow housing 500 in between the first tubular portion 517 and the second tubular portion 518.
  • FIG. 4 illustrates a cross-sectional view of the preferred embodiment of the water flow mechanism 501 taken along a cross-sectional line 4-4 of FIG.3.
  • the cold water inlet connector 507 is coaxial to the cold water flow valve 535 in parallel to the axis A
  • the hot water inlet connector 508 is coaxial to the hot water flow valve 536 in parallel to the axis A.
  • the temperature of the water output is controlled by determining the respective amount of cold water and hot water going into the water mixing chamber 510.
  • a rotating cold water cartridge 505 (see FIG. 5) disposed in the cold water flow valve chamber 535 adjusts the incoming cold water flow by turning the opening 543 to align with an opening of a cold water conduit 532 and allow cold water to flow into the mixing chamber 510, or by turning the opening 543 away from the opening of the cold water conduit 532 to reduce cold water from flowing into the mixing chamber 510.
  • a rotating hot water cartridge 506 see FIG.
  • the hot water flow valve chamber 536 adjusts the incoming hot water flow by turning the opening 544 to align with an opening of a hot water conduit 534 and allow hot water to flow into the mixing chamber 510, or by turning the opening 544 away from the opening of the hot water conduit 534 to reduce hot water from flowing into the mixing chamber 510.
  • the water temperature sensor housing 592 is coupled to the water mixing chamber 510 along the axis A within the water flow housing 500.
  • the cold water and hot water valve stem portions 517 and 518 hold the water motorized actuator mechanisms 502 and 503 to rotate the cold water valve 505 and the hot water valve 506.
  • FIG. 5 illustrates an exploded view of the preferred embodiment of the mixing system 10.
  • An inlet cold water filter 513 is connected internally with a check valve 512 within the cold water inlet connector 507.
  • An inlet hot water filter 515 is connected internally with a check valve 514 within the hot water inlet connector 508.
  • the check valves 512 and 514 prevent or reduce water backflow from the cold water and the hot water inlet connectors 507 and 508.
  • the water flow housing 500 includes the tubular portions 517 and 518, and the bracket portions 539 and 540 to secure the water flow mechanism 501 to the motorized cold water and hot water actuator mechanisms 502 and 503.
  • the cold water motorized actuator mechanism 502 comprises the rotating cold water cartridge 505, a gasket 587C, a cartridge locking nut 586C , a motor actuator adapter 585C, a motor actuator 51 1C, an actuator connector 589C and electric wire 588C.
  • the hot water motorized actuator mechanism 503 comprises the rotating hot water cartridge 506, a gasket 587H, a cartridge locking nut 586H, a motor actuator adapter 585H, and a motor actuator 511H, an actuator connector 589H and electric wire 588H.
  • the rotating cold water cartridge 505 and the rotating hot water cartridge 506 are preferably two-way ceramic valve cartridges. However, they may comprise cylinder valves, ball valves, disk valves, or any other types of valves.
  • the cold water motorized actuator mechanism 502 turns the actuator connector 589C that is connected to the motor actuator adapter 585C and rotating cold water cartridge 505 such that the opening 543 aligns with the opening of the cold water conduit 532 within the water flow housing 500 to allow cold water to flow into the mixing chamber 510. (See Fig. 4).
  • the cartridge locking nut 586C and the gasket 587C hold the cold water cartridge 505 in position.
  • the hot water motorized actuator mechanism 503 turns the actuator connector 589H that is connected to the motor actuator adapter 585H and rotating hot water cartridge 506 such that the opening 544 aligns with the opening of the hot water conduit 534 within the water flow housing 500 to allow hot water to flow into the mixing chamber 510.
  • the cartridge locking nut 586H and the gasket 587H hold the hot water cartridge 506 in position.
  • the hot and cold water flow are mixed in the water mixing chamber 510.
  • the mixed water which now has the desired temperature, is directed through the solenoid valve housing 504 and out of the water outlet connector 509.
  • a water temperature sensor 591 is coupled to a gasket 594 and an O-ring 593, and the assembly is housed in the water temperature sensor housing 592 connected to the water mixing chamber 510 within the water flow housing 500, to detect the mixed water temperature in the water mixing chamber 510.
  • FIG. 6 an exploded view of a first preferred embodiment of a faucet sensor system is designated by the reference numeral 100 and is configured for use in connection with a touch free automatic faucet system.
  • the faucet sensor system 100 comprises a faucet spout 101, a water outlet spray head 555, a faucet stem 554, a sensor housing 552, a water pipe/shaft 557, a faucet stationary base 551, an installation bracket 559, and a tightening nut 558.
  • the sensor housing 552 is coupled to the faucet spout 101, and comprises a primary sensor 1 11, a plurality of secondary sensors 1 12 and 1 13, and a plurality of tertiary sensors 1 14 and 1 15.
  • the plurality of sensors are assembled on printed circuit boards (PCBs), placed inside sensor covers, and aligned with their respective matching windows or openings disposed in the sensor housing 552.
  • PCBs printed circuit boards
  • the secondary sensor 112 on PCB 564 is placed inside a sensor cover 565 and matched with a window/opening 112a disposed in the sensor housing 552;
  • the secondary sensor 1 13 on PCB 564 is placed inside the sensor cover 565 and matched with a window/opening 1 13a disposed in the sensor housing 552;
  • the primary sensor 11 1 on PCB 561 is placed inside a sensor cover 562 and matched with a window/opening 1 11a disposed in the sensor housing 552;
  • the tertiary sensor 114 on PCB 567 is placed inside a sensor cover 568 and matched with a window/opening 1 14a disposed in the sensor housing 552; and
  • the tertiary sensor 1 15 on PCB 567 is placed inside the sensor cover 568 and matched with
  • FIG. 7 illustrates a transparent view of the preferred embodiment of the sensor housing 552.
  • the plurality of sensors 1 11, 112, 113, 114, and 115 are installed on the plurality of PCBs 561, 564, and 567, assembled inside the plurality of sensor covers 562, 565, and 568, and secured to the sensor housing 552 using a sensor holding element 572 and a securing nut 573.
  • the primary sensor 11 1 is configured in the same direction as the water outlet spray head 555.
  • the various embodiments of the invention provide a touch- free automatic faucet with three or more sensors to control water flow and temperature for commercial and residential applications for easy and convenient operation, water conservation, and personal hygiene protection.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Remote Sensing (AREA)
  • Domestic Plumbing Installations (AREA)
PCT/US2011/022207 2010-02-02 2011-01-24 Mixing system and faucet sensor system for a touch free automatic faucet Ceased WO2011097083A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US30078110P 2010-02-02 2010-02-02
US61/300,781 2010-02-02
US12/714,443 2010-02-27
US12/714,443 US8418993B2 (en) 2010-02-02 2010-02-27 System and method of touch free automatic faucet

Publications (1)

Publication Number Publication Date
WO2011097083A1 true WO2011097083A1 (en) 2011-08-11

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Family Applications (2)

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PCT/US2011/022207 Ceased WO2011097083A1 (en) 2010-02-02 2011-01-24 Mixing system and faucet sensor system for a touch free automatic faucet
PCT/US2011/023488 Ceased WO2011097305A1 (en) 2010-02-02 2011-02-02 System and method of touch free automatic faucet

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2011/023488 Ceased WO2011097305A1 (en) 2010-02-02 2011-02-02 System and method of touch free automatic faucet

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US (5) US8418993B2 (enExample)
EP (1) EP2531660A4 (enExample)
JP (2) JP5848264B2 (enExample)
CN (2) CN102822426B (enExample)
DE (1) DE112011100417T5 (enExample)
WO (2) WO2011097083A1 (enExample)

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