WO2008057630A2 - Système de commande de robinet et procédé - Google Patents

Système de commande de robinet et procédé Download PDF

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Publication number
WO2008057630A2
WO2008057630A2 PCT/US2007/070939 US2007070939W WO2008057630A2 WO 2008057630 A2 WO2008057630 A2 WO 2008057630A2 US 2007070939 W US2007070939 W US 2007070939W WO 2008057630 A2 WO2008057630 A2 WO 2008057630A2
Authority
WO
WIPO (PCT)
Prior art keywords
valve
fluid
sensor
faucet spout
switch
Prior art date
Application number
PCT/US2007/070939
Other languages
English (en)
Other versions
WO2008057630A3 (fr
Inventor
Kum Foong Boey
Original Assignee
Kum Foong Boey
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 Kum Foong Boey filed Critical Kum Foong Boey
Priority to US11/925,490 priority Critical patent/US8006712B2/en
Priority to US11/970,902 priority patent/US7766026B2/en
Priority to PCT/US2008/000263 priority patent/WO2008085971A1/fr
Publication of WO2008057630A2 publication Critical patent/WO2008057630A2/fr
Publication of WO2008057630A3 publication Critical patent/WO2008057630A3/fr

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Classifications

    • 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

Definitions

  • the invention relates generally to faucets, and, more particularly, to a control system and method for controlling fluid flow to faucets.
  • Touchless control systems have been developed which allow water flow from a faucet when a person places his or her hand within range of an infrared sensor. Touchless control systems promote sanitary conditions because they eliminate the need to touch any part of the faucet. Many touchless control systems, however, lack a means for convenient adjustment of water temperature. The ability to adjust temperature is indispensable in households, hotels, hospitals, and many work places. Touchless control systems that have no temperature control can be installed to dispense only warm water, but this increases energy costs when warm water is not always needed.
  • control systems with timers have been developed which allow a person to use another part of his or her body, such as a knee, to activate a water temperature controller. Such systems help conserve water and reduce the cost of heating water. Such systems also promote sanitary conditions by eliminating the need for a person to the touch the controller after she has washed her hands.
  • a drawback of such systems is that the controller for temperature and/or flow is located at a location that may be inaccessible to or accidentally bumped by some persons, such as persons in wheel chairs.
  • control systems with an infrared sensor the sensor is often fixed in position within the faucet spout, which limits the ability to locate the sensing range of the sensor in an area that is universally accessible.
  • the present invention is directed to a faucet control system for and method of controlling fluid flow to a faucet spout in fluid communication with at least one fluid source.
  • the system comprises a first valve adapted to control fluid flow from a first fluid source to the faucet spout, a first switch that is normally deactivated and is hand activated by a user of the system, and controller.
  • the controller includes a timer and in communication with the first valve and the first switch.
  • the controller is configured to open the first valve when the first switch is activated, thereby allowing fluid flow from the first fluid source to the faucet spout, and to close the first valve after a first selected period of time after the first switch is deactivated, thereby preventing fluid flow from the first fluid source to the faucet spout after the first selected period of time.
  • the controller includes an adjustment knob for adjusting the first selected period of time.
  • the system comprises a second valve adapted to control fluid flow from a second fluid source to the faucet spout, and a second switch that is normally deactivated and is hand activated by the user, wherein the controller is in communication with the second valve and the second switch.
  • the controller is configured to open the second valve when the second switch is activated, thereby allowing fluid flow from the second fluid source to the faucet spout, and to close the second valve after a second selected period of time after the second switch is deactivated, thereby preventing fluid flow from the second fluid source to the faucet spout after the second selected period of time.
  • the system comprises a third switch that is normally deactivated and is hand activated by the user, wherein the controller is in communication with the third switch.
  • the controller is configured to open the first valve and the second valve when the third switch is activated, thereby allowing fluid flow to the faucet spout from the first fluid source and the second fluid source, and to close the first valve and the second valve after a third selected period of time after the third switch is deactivated, thereby preventing fluid flow to the faucet spout from the first fluid source and the second fluid source after the third selected period of time.
  • the first switch and/or second switch, and/or third switch includes flexible conductive sheets and an exposed outer surface, the flexible conductive sheets configured to make contact with each other when hand pressure is applied by the user to the exposed outer surface, thereby activating the first switch and/or second switch, and/or third switch.
  • the present invention is also directed to a faucet control system for controlling fluid flow to a faucet spout in fluid communication with a first fluid source delivering a first fluid and a second fluid source delivering a second fluid.
  • the system comprises a valve apparatus having an outlet connectable to the faucet spout, a first inlet connectable to the first fluid source, and a second inlet connectable to the second fluid source, a first sensor that is hand activated by a user of the system, a second sensor that is hand activated by the user and provides a sensor signal when activated, and a controller in communication with the valve apparatus, the first sensor, and the second sensor, the controller controls the valve apparatus to allow a proportion of the first fluid to the second fluid is delivered to the faucet spout when the first sensor is activated, and to alter the proportion when the second sensor is activated.
  • the valve apparatus includes a first valve adapted to be connected to the first fluid source and a second valve adapted to be connected to the second fluid source.
  • the controller controls the first valve and the second valve such that a first proportion of the first fluid to the second fluid is delivered to the faucet spout when the second sensor provides an initial sensor signal.
  • the controller also controls the first valve and the second valve such that a second proportion of the first fluid to the second fluid is delivered to the faucet spout when the second sensor provides a first subsequent sensor signal after the initial sensor signal, the second proportion being different than the first proportion.
  • the controller further controls the first valve and the second valve such that a third proportion of the first fluid to the second fluid is delivered to the faucet spout when the second sensor provides a second subsequent sensor signal after the first subsequent sensor signal, the third proportion being different than the first proportion and the second proportion.
  • the first valve opens when power is provided to the first valve
  • the second valve opens when power is provided to the second valve
  • the controller includes a first relay, a second relay, and a third relay.
  • the first relay provides power to the first valve when the second sensor provides an initial sensor signal.
  • the second relay provides power to the first valve and the second valve when the second sensor provides a first subsequent sensor signal after the initial sensor signal.
  • the third relay provides power to the second valve when the second sensor provides a second subsequent sensor signal after the first subsequent sensor signal.
  • the first sensor is adapted to be mounted at a location spaced apart from the faucet spout and includes a sensing element having a sensing range, and the first sensor activates when the hand of the user is within the sensing range.
  • the sensing element of the first sensor is oriented such that the sensing range of the sensing element is below the faucet spout and the first sensor.
  • the second sensor is adapted to be mounted at a location spaced apart from the faucet spout and includes a sensing element having a sensing range, and the second sensor activates when the hand of the user is within the sensing range.
  • the sensing element of the second sensor is oriented such that the sensing range of the sensing element is above the second sensor.
  • a method comprises connecting the first inlet of a first valve to the first fluid source, connecting the first outlet of the first valve to the faucet spout, connecting the second inlet of a second valve to the second fluid source, connecting the second outlet of the second valve to the faucet spout, adhering a touch panel for activating the first valve and the second valve on a structure and at a location that is accessible to a user, and applying hand pressure to the touch panel to open one or both of the first valve and the second valve.
  • applying hand pressure to the touch panel comprises applying pressure to a first portion of the touch panel to allow a first proportion of the first fluid to the second fluid to be delivered to the faucet spout, applying pressure to a second portion of the touch panel to allow a second proportion of the first fluid to the second fluid to be delivered to the faucet spout, the second portion being different than the first proportion, and applying pressure to a third portion of the touch panel to allow a third proportion of the first fluid to the second fluid to be delivered to the faucet spout, the third proportion being different than the first and second proportion.
  • the present invention is also directed to a method comprising connecting an outlet of a valve apparatus to the faucet spout, connecting a first inlet of a valve apparatus to the first fluid source, connecting a second inlet of the valve apparatus to the second fluid source, mounting a first sensor at a first location spaced apart from the faucet spout, mounting a second sensor at a second location spaced apart from the faucet spout, activating the first sensor without touching the first sensor to allow a proportion of the first fluid to the second fluid to be delivered to the faucet spout, and activating the second sensor without touching the second sensor to alter the proportion of the first fluid to the second fluid.
  • mounting the first sensor includes orienting a sensing element of the first sensor such that a sensing range of the sensing element is located below the first sensor and the faucet spout.
  • mounting the second sensor includes orienting a sensing element of the second sensor such that a sensing range of the sensing element is located above the second sensor.
  • FIG. 2 is a schematic diagram of the first and second sensors of FIG. 1 showing a pyroelectric sensor, an IR filter, and a focusing device.
  • FIG. 9 is a plan view of a circuit board within the controller of FIG. 7 showing electronic components, a timer adjustment knob, connections to the solenoids, the touch panel, and the power supply.
  • FIG. 10 is a perspective view of a sink cabinet with a sink showing the touch panel of FIG. 7 disposed on an exposed surface of the sink cabinet, the solenoid valves connected to water supplies, the power supply plugged into an electrical wall outlet, and the controller mounted within the cabinet.
  • FIG. 1 a block diagram of a faucet control system 10 having a valve apparatus 12 controlled by a controller 14 that provides a valve control signal 16 to the valve apparatus.
  • the faucet control system also has a first sensor 18 and a second sensor 20 that provide a first sensor signal 22 and a second sensor signal 24, respectively, to the controller.
  • the faucet control system further has a visual display 26 for indicating temperature information in response to a display signal 28 from the controller.
  • the valve apparatus 12 allows a desired proportion of cold to hot fluid from fluid sources 38, 36 to be delivered to faucet spout assembly 40.
  • the delivery of the desired proportion of cold to hot fluid is prescribed by a user of the faucet control system 10 by activating the first and second sensors 18, 20.
  • the user may desire that fluid exiting the faucet outlet 46 come from (i) only the cold fluid source 36, (ii) from both the cold and hot fluid sources 36, 38, or (iii) only from the hot fluid source 38.
  • the first and second sensors 18, 20 are adapted to detect the presence of an object radiating thermal energy, such as the user's hand, within range of the sensors.
  • the first sensor 18 When the first sensor 18 detects the presence or motion of the user's hand within its sensing range 62, the first sensor provides the first sensor signal 22 indicating the presence of the hand to the controller 14.
  • the sensing range 62 is the area beneath the faucet outlet 46 and is indicated by phantom lines in the sink 60 shown in FIG. 4.
  • the controller In response to the first sensor signal, the controller provides a first control signal 16A to the valve apparatus 12 so that a default proportion of cold to hot water begins to be delivered by valve apparatus to the faucet spout assembly 40.
  • the first control signal 16A provided to the valve apparatus 12 may be an electrical current sufficient to actuate a motor or solenoid in the valve apparatus.
  • a first sensor signal 22 is provided to the circuit board 78.
  • a second sensor signal 24 is provided to the circuit board 78.
  • the circuit board activates the first relay device 72, which in turn provides a valve control signal 16 to only the first valve 66.
  • the first valve is moved from the normally closed to the open state so that cold water from the cold water source 36 is delivered to the faucet spout assembly 40.
  • the second valve 68 remains in its normally closed state so that only cold water exits the faucet outlet 46.
  • another second sensor signal 24 is provided to the circuit board 78.
  • the circuit board activates the second relay device 74, which in turn provides a valve control signal 16 to both the first valve 66 and the second valve 68.
  • the first valve remains in the open state and the second valve is moved from the normally closed state to the open state.
  • cold and hot water from the cold and hot water sources 36, 38 are delivered to the faucet spout assembly 40 so that warm water exits the faucet outlet 46.
  • water continues to be delivered to the faucet spout assembly 40 while the user's hand remains within the first sensing range 62 of the first sensor 18, even after the user's hand has moved out of the second sensing range 64 of the second sensor 20.
  • FIG. 7 shows a timed faucet control system 210 that comprises a touch sensor or panel 212, a first solenoid valve 214, a second solenoid valve 216, a controller 218 having a timer 220, and a power supply 222.
  • the controller 218 is connected to a power supply 222 and is in communication with the touch panel 212 and the first and second solenoid valves 214, 216.
  • the spring 236 is configured to move the armature 234 to a closed orientation at which the diaphragm 238 prevents fluid flow through the valve 214, 216 by blocking the valve outlet 223, 226.
  • the solenoid coil assembly 232 is configured to move the armature 234 from the closed orientation to an open orientation when power or electrical current is supplied by the controller 218 to the valve 214, 216. At the open orientation, the diaphragm 238 allows fluid flow through the valve outlet 223, 226.
  • the touch panel 212 includes three switches: a hot switch
  • each switch can be selectively activated and deactivated and is connected to the controller 218 by separate pairs of touch panel electrical leads 246.
  • the switches 240, 242, 244 may be configured as mat switches described in U.S. Patent Number 5,322,086 to Sullivan, the entire contents of which is incorporated herein by reference.
  • each mat switch 240, 242, 244 functions as a momentary-contact, normally-open, single-pole, single-throw switch.
  • Each mat switch 240, 242, 244 preferably includes at least one pair of flexible conductive sheets.
  • the flexible conductive sheets in each mat switch 240, 242, 244 are configured to be spaced apart in a normally-open configuration when no pressure is applied to an exposed outer surface adjacent to one of the flexible conductive sheets.
  • the flexible conductive sheets in each mat switch 240, 242, 244 are also configured to make contact with each other when pressure is applied to the exposed outer surface of the touch panel 212.
  • the portions of the exposed outer surface corresponding to the hot switch 240, warm switch 242, and cold switch 244 are labeled to indicate hot, warm, and cold to allow a user to select the desired water temperature.
  • the touch panel 212 also includes an unexposed outer surface which may be adhered or otherwise attached to a sink cabinet or other structure at a location that is accessible to a user of the timed faucet control system 210.
  • each mat switch 240, 242, 244 includes additional pairs of flexible conductive sheets so as to form stacked mat switches, wherein additional pressure applied to the exposed outer surface of the touch panel 212 causes the additional pairs of flexible conductive sheets to make contact with each other.
  • the controller 218 includes a circuit board 245 with electrical components.
  • the circuit board includes connections to the power supply 222, the first valve electrical leads 225, the second valve electrical leads 228, and the touch panel electrical leads 246.
  • the timer 220 of the controller 218 has an adjustment knob 248.
  • the adjustment knob 248 may be connected to a potentiometer or manually adjustable resistor.
  • the controller 218 is configured to provide current or power only to the first solenoid valve 214 when pressure is applied to the cold switch 244 of the touch panel 212, such that cold water from a cold water supply is delivered through the first solenoid valve to a cold water inlet of a faucet.
  • the controller 218 is also configured to provide current or power only to the second solenoid valve 216 when pressure is applied to the hot switch 240 of the touch panel 212, such that hot water from a hot water supply is delivered through the second solenoid valve to a hot water inlet of the faucet.
  • the controller 218 is further configured to provide current or power to both the first and the second solenoid valves 214, 216 when pressure is applied to the warm switch 242 of the touch panel 212, such that cold and hot water is delivered simultaneously to the respective cold and hot water inlets of the faucet so that warm water flows out of the faucet. In this way, cold, warm, or hot water flows out of the faucet when the cold switch 244, warm switch 242, or hot switch 240 of the touch panel 212 is activated with pressure.
  • the controller 218 is also configured to continue providing current or power to one or both of the valves 214, 216 after pressure is removed from the touch panel 212 such that the desired water temperature continues to be delivered to the faucet. In this way, water continues to be delivered to the faucet after the switches 240, 242, 244 have been deactivated. It will be appreciated that a user of the timed faucet control system 210 need not apply pressure continuously to the touch panel 212 in order to have water at a desired temperature flow out of the faucet continuously.
  • the controller 218 is further configured to provide power or current to one or both valves 214, 216 such that the valve(s) has a high open condition when a second amount of pressure, greater than the first amount of pressure, is applied to either switch 240, 242, 244 on the touch panel 212.
  • a second amount of pressure greater than the first amount of pressure
  • two or more pairs of flexible conductive sheets within the activated switch 240, 242, 244 make contact with each other, which is detected by the controller 218.
  • the controller 218 provides signals, power, or current to the valves 214, 216 so that fluid flows out of the faucet at a higher rate of flow.
  • the timed faucet control system 210 is shown installed in a sink cabinet 250 with a sink 251.
  • the first solenoid valve 214 is connected to a cold water supply 252 beneath the sink 251 and is connected by means of a cold water conduit 254 to a cold water inlet 256 of a faucet 258 adjacent the sink 251.
  • the second solenoid valve 216 is connected to a hot water supply 260 also beneath the sink 251 and is connected by means of a hot water conduit 262 to a hot water inlet 264 of the faucet 258.
  • the power supply 222 is plugged into an electrical wall outlet 266 and is connected by means of power leads 268 to the controller 218, which is mounted inside the cabinet 250.
  • the timer adjustment knob 248 is shown protruding from a cover 255 that protects the circuit board 245 of the controller 218. In this way, the knob 248 is easily accessible.
  • the touch panel 212 is mounted on an exterior surface of the cabinet so that the exposed outer surface 253 of the touch panel 212 is accessible to a user of the system 210. It will be appreciated that the touch panel 212 may be mounted so as to be easily accessible by persons confined to wheel chairs or other persons with limited mobility. Preferably, the touch panel 212 is located at a suitable height, such as, for example, near or at the level of the sink 251 or faucet 258, so that pressure is applied to the touch panel 212 with the user's hand.
  • the user momentarily touches or otherwise applies pressure to a portion of the touch panel 212 thereby activating any one of the mat switches 240, 242, 244 corresponding to the desired water temperature.
  • the controller 218 detects the applied pressure and begins to provide power or current to one or both valves 214, 216 in response to the detected pressure, such that water flows out of the faucet at the desired temperature.
  • the controller 218 keeps the valve or valves 214, 216 open by continuing to provide power or current to the valve or valves 214, 216 for a selected amount of time associated with present position of the adjustment knob 248 on the timer 220 of the controller 218.
  • the controller 218 automatically discontinues providing power or current to the valve or valves 214, 216, thereby closing the valves or valves 214, 216.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Domestic Plumbing Installations (AREA)

Abstract

L'invention concerne un système de commande de robinet qui comprend une valve, des capteurs ou un panneau tactile devant être activés par un utilisateur, ainsi qu'un contrôleur qui commande la valve. Un premier capteur peut démarrer l'écoulement d'un fluide et un second capteur peut modifier la proportion des fluides délivrés en provenance de deux sources de fluide. Les capteurs peuvent être activés sans être touchés et peuvent inclure des éléments de détection infrarouge. Le panneau tactile peut être activé par pression manuelle et peut inclure des feuilles électriquement conductrices. Le panneau tactile peut comporter une première partie permettant l'écoulement d'un fluide depuis une première source de fluide, une seconde partie permettant l'écoulement d'un fluide depuis la première source de fluide et depuis une seconde source de fluide, ainsi qu'une troisième partie permettant l'écoulement d'un fluide depuis la seconde source de fluide. Le contrôleur peut inclure une minuterie ajustable de telle sorte que l'écoulement de fluide puisse être stoppé automatiquement après un intervalle de temps sélectionné.
PCT/US2007/070939 2006-10-27 2007-06-12 Système de commande de robinet et procédé WO2008057630A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US11/925,490 US8006712B2 (en) 2006-10-27 2007-10-26 Faucet control system and method
US11/970,902 US7766026B2 (en) 2006-10-27 2008-01-08 Faucet control system and method
PCT/US2008/000263 WO2008085971A1 (fr) 2007-01-08 2008-01-08 Système et procédé de contrôle de robinet

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US85500206P 2006-10-27 2006-10-27
US60/855,002 2006-10-27
US88397007P 2007-01-08 2007-01-08
US60/883,970 2007-01-08

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US11/925,490 Continuation-In-Part US8006712B2 (en) 2006-10-27 2007-10-26 Faucet control system and method
US11/970,902 Continuation-In-Part US7766026B2 (en) 2006-10-27 2008-01-08 Faucet control system and method

Publications (2)

Publication Number Publication Date
WO2008057630A2 true WO2008057630A2 (fr) 2008-05-15
WO2008057630A3 WO2008057630A3 (fr) 2008-11-06

Family

ID=39365160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/070939 WO2008057630A2 (fr) 2006-10-27 2007-06-12 Système de commande de robinet et procédé

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WO (1) WO2008057630A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457141A (en) * 2008-02-01 2009-08-12 Kibuts Glil Yam Automatic faucet
US8407827B1 (en) 2009-07-06 2013-04-02 Adam Michael Friedman Spatially reactive water system
US9057182B1 (en) 2009-07-06 2015-06-16 Adam Friedman Spatially reactive water system incorporating a non tactile control module
CN112503227A (zh) * 2020-12-31 2021-03-16 广东金雅智能家居科技有限公司 一种具有防腐蚀功能的智能控制水龙头

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105822819B (zh) * 2016-05-06 2017-12-29 赵晨希 计时计量双管水龙头

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322086A (en) * 1992-11-12 1994-06-21 Sullivan Robert A Hands-free, leg-operated, faucet-control device
US5868311A (en) * 1997-09-03 1999-02-09 Cretu-Petra; Eugen Water faucet with touchless controls
US6019130A (en) * 1996-06-25 2000-02-01 Rosemarie Brand-Gerhart Water run-out fitting
US6913203B2 (en) * 2003-12-03 2005-07-05 Delangis Eric Self powered electronically controlled mixing valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322086A (en) * 1992-11-12 1994-06-21 Sullivan Robert A Hands-free, leg-operated, faucet-control device
US6019130A (en) * 1996-06-25 2000-02-01 Rosemarie Brand-Gerhart Water run-out fitting
US5868311A (en) * 1997-09-03 1999-02-09 Cretu-Petra; Eugen Water faucet with touchless controls
US6913203B2 (en) * 2003-12-03 2005-07-05 Delangis Eric Self powered electronically controlled mixing valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457141A (en) * 2008-02-01 2009-08-12 Kibuts Glil Yam Automatic faucet
US8407827B1 (en) 2009-07-06 2013-04-02 Adam Michael Friedman Spatially reactive water system
US9057182B1 (en) 2009-07-06 2015-06-16 Adam Friedman Spatially reactive water system incorporating a non tactile control module
CN112503227A (zh) * 2020-12-31 2021-03-16 广东金雅智能家居科技有限公司 一种具有防腐蚀功能的智能控制水龙头

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