CN102656325A - 自动感应水龙头组件 - Google Patents
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Abstract
一种水龙头组件(10)包括一个用于安装成与水槽的盆相邻的底以及一个喷管(14),所述喷管从所述底向上和向外突出并终止于水出口(22)处。一个光发射器(30)被安装至喷管的一个部分并发射指向喷管的另一部分的光束,在该另一部分处,安装了一个光传感器(34),其中光束不与出口下面的区域相交。被安装至喷管的所述光传感器(34)产生一个信号,指示所述光束是否作用在光传感器上。一个控制电路根据所述信号打开阀,由此输送水通过出口。
Description
相关申请的交叉引用
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关于联邦赞助研究或开发方面的声明
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发明背景
发明领域
本发明涉及自动感应水龙头(touchless faucet),更具体地,涉及以下水龙头:该水龙头利用光束来检测人的存在并根据所述检测来激活水龙头。
相关技术的描述
在医院、公共休息室以及其他车间,通常提供有一种无需使用者接触即可打开和关闭的水龙头。现有技术中充塞着一些用于检测使用者的存在的、并根据所述检测激活一个控制水流向水龙头的电磁阀组件的设备。一个常见的检测技术,如专利号为4915347的美国专利中所描述的,包括发送红外光束至水龙头喷管的出口下面的流水区域中,使用者的手或其他物体被放置在流水区域以待清洗。如此放置的手或物体将红外光束中的一部分朝水龙头往回反射,从而所述被反射的光被安装在水龙头上或附近的传感器探测到。在传感器处探测到反射光,指示使用者位于水龙头前面。根据接收到反射光这一情况,传感器发射一个能引起电磁阀开启的电信号,从而将水从水龙头送出。当不再探测到反射光时,电磁阀断开,水流终断。
这种接近激活的水龙头所存在的一个问题是,靠近水龙头的室内元件,如镜子或光亮的水槽表面,能将光反射回到传感器,从而错误地触发水流。无生命的物体,如放置在水槽前边缘的手提包,也会错误地促使水龙头工作。所述水龙头的错误的激活不仅浪费水,也可能导致水溢出水槽,如果意外的物体还堵塞了泄水口。
现有的自动感应水龙头不适用于下述厨房水槽:这些厨房水槽用于从蒸煮罐倒水或切割蔬菜之类的操作,在所述操作过程中不需要来自水龙头的水。因此,在这些活动期间,手或其他物体位于水龙头出口下面时不应激活水流。
发明内容
一种水龙头组件包括一个喷管,该喷管具有一个底,该底用于安装在一个水槽的盆附近。所述盆是水槽的凹进去的部分,其被构造为接收和保持水。所述喷管从所述底向上和向外突出至盆的上方并终止于一个出口处,通过所述出口,将在所述出口下面的流水区域中产生水流。一个光发射器和一个光传感器被安装至喷管。所述光发射器朝向喷管底投射一束光,同时所述光束不与喷管下面的流水区域——来自所述出口的水喷出在该处——相交。所述光传感器产生一个信号,指示所述光束是否作用在光传感器上。根据所述信号,控制电路打开阀,由此输送水通过喷管。
在该水龙头组件的一个实施方案中,所述光传感器被安装至喷管底,并且所述光发射器被安装在喷管出口的附近,光束指向光传感器。此处,一个人,例如用他或她的手,中断光束,该中断通过来自光传感器的信号来指示。控制电路根据该信号,打开一个将水供应制水龙头喷管的阀。所述光可以是可见光谱中的光,以在手中断光束时向该人提供一个指示。所述水阀可以保持打开,直至一预定时间段已经过去或者所述光束再次被中断,看哪者发生在先。
在另一个水龙头组件实施方案中,所述光发射器和光传感器在喷管上彼此邻近,以及所述光传感器对物体,如人的手,所产生的光束反射作出响应。在此情形下,控制电路根据信号指示光传感器接收到所述光束而打开所述阀。同样,此处,水阀可以保持打开,直至一预定时间段已经过去或者所述光束再次被中断,看哪者发生在先。
因为光束不与喷管下面的流水区域——来自所述出口的水喷出在该处——相交,一个人可以使用水槽,同时不触发水的流出。例如,该人可以在保持在水槽内的水中清洗餐具或者倾倒一罐水,同时而不作用于光束及不激活水龙头。因此,该水龙头组件尤其适用于洗手之外的其他活动会发生的水槽处。
附图说明
图1是安装有根据本发明的水龙头组件的水槽的立体图;
图2是用于控制来自水龙头组件的水流的电路的框图;
图3是安装有第二水龙头组件的水槽的立体图;
图4是示出了与第二水龙头组件相关的配管(plumbing)和控制器的示意图;
图5示出了与一个具有传统的单出口手动混合阀的第三水龙头组件相关的配管和控制器。
具体实施方式
先参考图1,水龙头组件10包括一个水龙头11,该水龙头11具有一个安装板12和喷管14。所述安装板12适于立于水槽16的边缘15上或立于一个柜台上,所述柜台围绕安装于柜台下的水槽。一些艺术化水槽不具有安装板12,并且喷管14的底部直接安装至与水槽16的盆24相邻的表面。喷管14以倒J形的方式从安装板12向上延伸。尤其是,所述喷管14具有一个第一端17,所述第一端具有一个大体垂直的管状的底18,该底从安装板12向上突起并连接至一个管状的弓形部分20,所述弓形部分向上和向外弯曲到水槽的盆24上方并接着继续向下弯曲,终止于第二端19,该第二端具有一个水出口22。所述水出口22具有一个管嘴,当水龙头组件10被激活时,水流26从所述管嘴流出。尽管本发明结合了高度弓形的喷管来加以描述,水龙头11可以具有其他类型的从底部向上和向外突出至水出口的喷管。所述水龙头11可以具有一个拉出型的喷头,其中水出口连接至一个延伸穿过喷管14的软管。
光发射器30,如半导体激光器,发光二极管(LED)或发射光束32的其他设备,被安装在喷管14上,与水出口22相邻并面向底18。光发射器30被定向为将光束32以一个向下的角度朝向底18引导。光传感器34位于底18上的一个位置处,以接收光束32。对于该实施方案,半导体激光器具有产生高准直的狭窄的光束32的优势,借此,多数光——如果不是所有光,作用到传感器34上。然而,也可以使用来自其他类型的发射器的被聚焦成狭窄光束32的光。这种狭窄的光束沿着光束的路径提供了相对小的物体探测带。优选地,光对人眼是可见的,从而当使用者的手或其他物件阻挡光束32时,一个可见的光斑出现在该物体上,从而指示光束已经被中断。不可见光,如红外光谱中的光,仍然可以使用。作为另一个选择,光发射器30和传感器34的位置可以互换,其中光发射器被安装在底18上或底18的附近,传感器被安装在喷管上或喷管的附近,然而,在这种变动下,对于使用者而言,可能看不到落在手上的光斑。这种替代方案也可以使得发射的光中的一些可见地在水槽16所处的室内传播。
水龙头组件10的操作通过图2所示的电路40来控制,其中光发射器30和传感器34被连接至控制器44。所述控制器44由电池42或一个连接至室内110或220V交流电系统的低电压直流电源供电。光发射器30通过来自控制电路46的输出信号被周期性地激活,并在被激活时,产生光束32。一旦受到光束32的作用,传感器34产生一个电信号,该电信号被施加至控制电路46的输入端。可以采用多种熟知的信号处理技术或过滤器中的任何之一,以阻止室内的光激活水龙头组件110。
控制电路46优选地是基于微计算器的,并具有一个存储器,其存储控制水龙头组件10的操作的控制程序,以及存储控制程序所用的数据。控制电路46的输入端被连接至使用者输入设备50,所述使用者输入设备在图示实施方案中是触控板,如通常见于笔记本电脑的触控板,其用于供使用者移动显示屏上的光标。所述触控板产生输出信息,指示被使用者碰触的触控板上的一个二维位置。触控板的一个正交轴上的X信号指示了对水龙头排出的水所期望的温度,而另一正交轴上的Y信号指示了对所述水所期望的流速。通过碰触触控板上的不同位置,使用者能够改变温度和流速。或者,可以使用传统的按钮开关作为使用者输入设备59,通过其来升高和降低水温和流速。按钮开关还可以被提供用于选择预设的被编程到控制电路46中的水温或流速。
当水龙头11没有被使用时,光束32从发射器30传播到光传感器34,由此产生一个施加至控制电路46的输入端的电信号。一旦控制电路46接收该电信号,则确定使用者没有位于水龙头11处,并且不允许水流至水龙头喷管14。
再次参考图1,请注意光束32没有与出口22(水流26通过此出口流出)下面的“流水区域”相交,也不与水出口22下面的、通常使用者放置手或其他物体于其中以待清洗或其他利用水槽的目的的任何区域相交。在一个实施方案中,所述光束32不与一个从喷管的第二端19向下延伸至盆24的上开口27的边的更大的“工作区域”66相交。对于示例性的长方形盆24,工作区域66具有四棱锥形状,其中每一侧的边在图1中用短划线示出,然而对于圆形或椭圆形的盆,工作区域是圆锥形的。换言之,工作区域66具有由盆24的上部开口27限定的下部边界和至水出口22所处的喷管的第二端19向上逐渐变小。所述工作区域66可以额外地包括盆24的内部,因此该工作区域进一步由盆的侧壁和底部来限定边界。
通过避开流水区域和工作区域,光束32的路径允许一个人在不激活水流的情况下使用水槽。例如,一大罐水可以被倾倒至水槽中,或者餐具可以在保存于盆中的水中清洗,而不会出现中断光束132并从而触发水流的事件。在本文中,“出口下面的流水区域”指喷管水龙头下面的一个下述空间:物体置于该处时,来自出口的水将作用在物体上,并且排除出口竖向位置下面的其他下述空间:在这些空间处,来自出口的水将不作用在放置于该空间的物体上。尽管在第一水龙头组件10中,光传感器34低于水出口22,该传感器朝水槽的后部靠后设置,从而使得指向传感器的光束32不与出口22下面的由流出的水流26限定的流水区域相交。
当使用者靠近水槽16并想要激活水龙头11时,他或她的手或另一物体被放置光发射器30和传感器34之间,由此中断光束32。狭窄的光束132的路径限定了一个探测带。如之前所提醒的,优选的是,光是可见光谱,从而使得在物体上产生一个容易感知的光斑,以向使用者指示光束被阻挡了。而且,该光斑对用户是可见的,因为光从水龙头的水出口22附近向下朝水槽的盆24的后部及靠近水龙头喷管的管状底18传播。该路径照射对使用者可见的手或其他物体的一部分。
再次参考图2,以此方式中断光束32终止了之前由光传感器34产生的并被施加至控制电路46的输入端的电信号。当控制电路46确认其没有接收到与激活光发射器30相应的输入信号时,则确定一个人出现并希望使用水槽16。根据所述确定,控制电路46发送一个致使一对阀驱动器56和58打开一个阀组件60的输出信号,所述阀组件包括两个比例电磁阀61和62。所述两个电磁阀61和62分别控制热水和冷水流向喷管14。尤其是,所述两个电磁阀61和62的出口被连接在一起以产生热水和冷水的混合体,该热水和冷水的混合体被运送通过喷管14以产生流出的水流26。所述阀组件60可以利用其他能通过电操作的阀装置,以产生热水和冷水的混合体。所述阀组件60,连同控制器44,通常位于水槽16的下面。
热水和冷水电磁阀61和62开放的程度由存储在控制电路46的存储器内的相应的第一和第二值来独立地指定。所述值由来自使用者输入设备50的信号来设定并且被控制电路使用,以确定发送至阀驱动器56和58的控制信号的大小,以及由此确定施加至每个比例电磁阀641和62的电流的水平。参考图2中的触控板52的取向,将手指碰触触控板的水平轴上的不同位置,以指示不同的期望温度。触控板52的所述轴的所得信号指示控制电路升高或降低指示了热水电磁阀61开放的程度的第一值,并以相反的方式改变第二值,以改变冷水电磁阀62开放的程度。例如,移动手指到触控板52的右边,指示水温应该升高,这导致对应于热水电磁阀61的第一值升高以及导致用于冷水电磁阀62的第二值降低。这个动作送出更多的热水和更少的冷水至喷管14。
碰触如图2所定向的触控板52的垂直轴上的不同位置,则通过将第一和第二值两者改变相同的量以及同等地改变两个电磁阀61和62的开放程度,来改变水的流速。应该理解的是,两个电磁阀61和62可以不开放相同的量,因为水温设置可能指示了更大量的热水或冷水。例如,在触控板52上向下移动手指,指示水的流速应该降低。该移动将使第一和第二值两者降低相同的量,这将热水和冷水的流速降低至相同的程度,而同时保持流速的相同比例,并因此而保持来自水龙头11的相同温度的水的混合体。
此处所指的方向性关系和移动,如水平的,垂直的,上和下,或左和右,指的是相对于图中所示的部件的取向而言的关系和移动,其可能不是这些部件被组装到水槽上或水槽附近时的取向。
在通过使用者手上的光斑或通过水开始从水龙头流出,而已经指示光束被中断后,使用者的手可以移开,不去阻挡光束。一旦被激活,水龙头11可以保持打开达一固定的时间段,这可以由控制电路46中的微计算器所执行的软件定时器所确定。在所述时间段内,控制电路继续周期性地激活光发射器30并检查由光传感器34产生的信号。如果在水从喷管14流出时,使用者再次中断光束32,则两个电磁阀61和62立即被关闭,即使所述的固定的时间段尚未过去。作为另一选择,所述水龙头组件10可以被构造为使得两个电磁阀61和62仅仅在光束32继续被中断时保持打开。
一个人可以使用水槽,而同时不打开水。该人可以在喷管出口22的下面工作,并且不激活水流,因为光束不与出口22下面的水流区域或更大的工作区域66相交。因此,该人可以在没有水从喷管流出的情况下,剥蔬菜皮、放置餐具到水槽中或倾倒一锅水到水槽中。由光束32的路径限定的探测带的位置允许对水槽的诸如此类的使用。在任何一个需要水从喷管14流出的时刻,使用者可以简单地移动手或其他物体穿过光束32限定的探测带,以此马上中断光束。
参考图3,第二水龙头组件110包括一个水龙头111,其具有一个安装板112和一个喷管114,安装板相邻于水槽116的盆124固定,喷管以倒J形的方式从安装板向上延伸。尤其是,所述喷管114具有一个大体垂直的管状的底118,该底从接触安装板112的第一端117向上延伸并连接至一个弓形部分120,所述弓形部分向上和向外弯曲到水槽的盆24上方。所述弓形部分120继续向下弯曲至喷管114的远处的第二端119。该第二端119具有一个水出口122,所述水出口也指喷头,其在水流过喷管时产生水流126。
一个接近探测器130安装在喷管114上,靠近第二端119并面向底118。所述接近探测器130包括一个光发射器(如发光二极管(LED))以及一个光传感器,类似于第一水龙头组件10中的部件30和34。所述光发射器和光传感器被放置为彼此相邻,从而向下朝喷管底118投射一束狭窄的可见光束132,并对被一个物体(如可能被放置在光束中的使用者的手)反射回到探测器的任何光进行检测。所述光束132的路径形成了一个探测带,该探测带不与水出口122(送出的水流26通过开口122流出)下面的流水区域相交,所述光束也不与所述水槽的工作区域相交。
第二水龙头组件110包括一个手动操作的混合阀134,其被安装在与安装板112相邻的水槽边缘。作为另一个选择。所述混合阀可以被包括进喷管114的管状底118内,只要有一个独立的出口被提供用于自动混合阀组件147,如将要描述的。参考图4,这种混合阀134具有一个将来自热水管线141和冷水管线142的水混合至一个居间的腔内的混合级。在居间的腔内混合的热水和冷水的比例通过杆144的旋转位置来改变。所述混合阀134具有一个流动切断阀,其在打开时允许水从居间的腔流至第一出口145。所述流动切断阀通过将杆144倾斜至最为下面的位置而关闭。将杆144从最为下面的位置抬起,则打开流动切断阀,所述杆抬起的量成比例地控制流至第一出口145的水的流速。混合阀134的第一出口145被连接至喷管114的入口148。所述混合阀134具有第二出口146,其被直接连接至居间的腔。因此,无论流动切断阀是打开的还是关闭的,居间的腔内的热水和冷水混合体总能从第二出口146流动。一个合适的人工混合阀例如见述于序列号为2008/0072965的美国专利申请文件,但是,其他类型的人工混合阀也是可以使用的。
第二出口146被连接至一个能通过电操作的阀组件147,其具有单个电磁阀,该电磁阀将第二出口连接至喷管114的入口148。阀组件147的操作通过一个控制器150来控制,所述控制器包括用于操作一个连接至阀组件147的阀驱动器154的控制电路152。所述控制电路152具有一个连接至光发射器156的输出端以及一个连接至光传感器158的输入端,其中所述光发射器和光探测器是接近探测器130的一部分。控制器150包括电源159,如电池。
可以以类似于第一水龙头组件10的方式,通过将手或其他物体放置于光束132中而自动操作第二水龙头组件110。这种动作将光反射回到接近探测器130内的传感器。由于来自该光束的光仅仅在物体存在时才作用于传感器158,控制电路152仅仅在那个时候才接受来自光传感器的激活信号。在这种时候,作为响应,控制电路发送输出信号至阀驱动器154,作为响应,所述阀驱动器154打开阀组件147,以将热水和冷水的混合体从混合阀134的第二出口146送入喷管114的入口148。阀组件147打开的程度以及相应的水的流速,在控制电路中被预设。要注意的是,水温通过手动混合阀134的混合级而确定。之后,一旦使用者再次将手或其他物体放置于光束中132,或者在一预定激活时间段过去后(看哪个发生在先),控制电路152关闭阀组件147。
第二水龙头组件110可以通过使用者举起杆144而被手动操作,所述杆144打开混合阀134的流动控制阀级。杆被抬起的程度确定了流动控制阀打开的程度,也因此确定了水的流速。混合阀134的流动控制阀级与能通过电操作的阀组件147并联连接,因此,当其中任何一个打开时,水从混合阀的居间腔流至水龙头喷管114和水出口122。无论手动混合阀134或能通过电操作的阀组件147中的哪一个打开,旋转混合阀134的杆144控制送至水出口122的水的温度。
图5示出了第三水龙头组件180,其类似于第二水龙头组件110,除了使用具有单出口184的手动操作的混合阀182之外。第三水龙头组件180的部件中与第二水龙头组件110中的部件相同的部件用相同的参考数字表示。旋转混合阀182的杆186改变离开阀的混合体中热水和冷水的比例,并因此而改变输出的水的温度。杆186倾斜的程度控制离开混合阀的水的流速。混合阀182具有内部电开关,该电开关仅仅在阀打开时才导通电流,由此经由电缆188而向控制电路152提供阀信号。
混合阀182的输出184连接至能通过电操作的阀组件147的入口,因此,那两个阀串联地流体连接。为了打开水龙头,使用者必须抬起杆186以打开混合阀182。这个动作也关闭了混合阀的内部电开关,该内部电开关发送阀信号至控制电路152,以指示混合阀已经打开。所述控制电路152对所述阀信号作出相应,打开能通过电操作的阀组件147至完全开状态。这将水的混合体从混合阀182送至水龙头喷管114,并穿过水出口122。该使用者不用为了使水开始流出而必须将手或其他物体放在光束132的路径中。
然而,现在,如果使用者将手或其他物体放置在光束132的路径中,从光传感器158得到的信号致使控制电路152关闭能通过电操作的阀组件147,并打开水流。如果混合阀182保持打开,如通过电缆188上的阀信号所指示给控制电路152的,将手或其他物体从光束移开,并接着将该手或物体重新插入光束中,将导致控制电路打开阀组件147。重复中断光束,使阀组件147在打开和关闭状态之间切换,只要控制电路152继续接收到阀信号指示混合阀182是打开的。
前面的描述主要针对本发明的优选实施方案。尽管已经对本发明的范围内的各种变体给予过一些关注,仍然可以预期的是,本领域普通技术人员将可能意识到从本发明的实施方案的公开内容而显而易见的额外的变体。相应地,本发明的范围应该从以下权利要求来确定,并且不受限于上述公开内容。
Claims (29)
1.一种水龙头组件,包括:
一个喷管,该喷管具有第一端,该第一端用于安装在一个水槽的盆附近;并且该喷管具有第二端,一个出口位于所述第二端,用于在出口下面的流水区域产生水流;
一个光发射器,其被安装在喷管的一个部分并发射指向喷管的另一部分的光束,其中所述光束不与出口下面的所述流水区域相交;
一个安装至喷管的光传感器,其中光传感器产生一个信号,指示光束是否作用在光传感器上;
一个阀组件,其被连接至喷管以及能通过电操作,用于控制水流至喷管;以及
一个控制电路,其根据来自传感器的信号打开阀组件。
2.根据权利要求1所述的水龙头组件,其中,喷管包括一个弓形部分,该弓形部分从所述第一端向上和向外突出至所述第二端。
3.根据权利要求1所述的水龙头组件,其中,所述喷管具有一个倒J形形状。
4.根据权利要求1所述的水龙头组件,其中,所述光束不与工作区域相交,所述工作区域具有一个由盆的上开口限定的下部边界,其中所述工作区域从所述下部边界至所述出口向上逐渐变小。
5.根据权利要求1所述的水龙头组件,光传感器被安装在所述第一端的附近以及光发射器安装在所述第二端的附近。
6.根据权利要求1所述的水龙头组件,其中,光发射器和光传感器两者被安装在所述出口附近。
7.根据权利要求1所述的水龙头组件,其中,光对人眼是可见的。
8.根据权利要求1所述的水龙头组件,其中,光对人眼是不可见的。
9.根据权利要求1所述的水龙头组件,其中,根据来自传感器的信号,控制电路打开阀组件达一个预定的时间段。
10.根据权利要求1所述的水龙头组件,其中,当阀组件是打开的、光束作用在传感器上以及此后光束被阻挡而没有作用在传感器上时,控制电路关闭阀组件。
11.根据权利要求1所述的水龙头组件,还包括一个用户输入设备,用于设定水的温度和水的流速中的至少一个。
12.根据权利要求1所述的水龙头组件,还包括与阀组件并联连接的手动操作的阀。
13.根据权利要求1所述的水龙头组件,还包括与阀组件串联连接的手动操作的混合阀。
14.一种水龙头组件,包括:
一个喷管,该喷管具有一个底,该底用于安装在一个水槽的盆附近;所述喷管从所述底向上和向外突出并终止于一个用于产生水流的出口处,其中所述水流限定一个出口下面的流水区域;
一个光传感器,其被安装至喷管,位于所述底的附近;
一个光发射器,其被安装至喷管,位于所述出口附近,用于投射一束光到光传感器上,其中所述光传感器产生一个信号,指示所述光束是否作用在光传感器上;
一个阀组件,其能通过电操作,用于控制水流至喷管;以及
一个控制电路,其根据所述的信号指示所述可见光束被阻挡,没有作用在传感器上,而打开阀组件。
15.根据权利要求14所述的水龙头组件,其中,所述光发射器投射一束可见光。
16.根据权利要求14所述的水龙头组件,其中,所述光束不经过出口下面。
17.根据权利要求14所述的水龙头组件,其中,所述光束不与工作区域相交,所述工作区域具有一个由盆的开口限定的下部边界,其中所述工作区域从所述下部边界至所述出口向上逐渐变小。
18.一种水龙头组件,包括:
一个喷管,该喷管具有第一端,该第一端用于安装在一个水槽的盆附近;并且该喷管具有第二端,一个出口位于所述第二端,用于在出口下面的流水区域产生水流;
一个接近探测器,其被安装至喷管并限定一个不与工作区域相交的探测带,其中所述工作区域具有一个由盆的上开口限定的下部边界,以及所述工作区域从所述下部边界至所述出口的第二端向上逐渐变小,以及其中所述接近探测器产生一个指示是否有一个物体被放置在探测带中的信号;
一个阀组件,其能通过电操作,用于控制水流至喷管;以及
一个控制电路,其根据所述信号指示有一个物体处于探测带中而打开所述阀组件。
19.根据权利要求18所述的水龙头组件,其中,探测带位于所述喷管的第一端和第二端之间。
20.根据权利要求18所述的水龙头组件,其中,所述工作区域还包括再一个盆内部的区域。
21.根据权利要求18所述的水龙头组件,其中,所述接近探测器包括一个光发射器,其用于投射一束光到探测带中;以及一个光传感器,其用于接收所述光束。
22.根据权利要求21所述的水龙头组件,其中,所述光传感器被安装在所述喷管的第一端的附近,以及所述光发射器被安装在所述喷管的第二端的附近。
23.根据权利要求21所述的水龙头组件,其中,光发射器和光传感器两者被安装在喷管的第二端的附近。
24.根据权利要求21所述的水龙头组件,其中,光对人眼是可见的。
25.根据权利要求21所述的水龙头组件,其中,光对人眼是不可见的。
26.根据权利要求18所述的水龙头组件,其中,根据所述信号指示有一个物体处于探测带中,控制电路打开阀组件达一个预定的时间段。
27.根据权利要求18所述的水龙头组件,其中,当阀组件是打开的、所述信号指示没有任何物体处于探测带中以及此后所述信号指示一个物体位于探测带中时,控制电路关闭阀组件。
28.根据权利要求18所述的水龙头组件,其中,还包括与阀组件并联连接的手动操作的阀。
29.根据权利要求19所述的水龙头组件,其中,还包括与阀组件串联连接的手动操作的混合阀。
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US20150233100A1 (en) | 2015-08-20 |
US20240159033A1 (en) | 2024-05-16 |
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US11859375B2 (en) | 2024-01-02 |
US10125478B2 (en) | 2018-11-13 |
EP2513383A1 (en) | 2012-10-24 |
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