201143877 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種依據主要申請專利範圍之前言之具 有一可更換的匣筒之類型的滲透過濾裝置。 【先前技術】 具有前述特徵之過濾裝置係被廣泛使用於家庭用之飲 用水的過濾。其等通常被做成水罐、水壺、茶壺等等之形 式。一此技術之典型範例係述說於PD2008U000033中。 於此些裝置中，該過濾 樹脂或其他材料之過濾床，其等之能力經使用及/或經過一 段時間之後會耗竭，直到該匣筒必須被更換。因而提出有 諸裝置用於計算該匣筒之一或多個操作參數，以便在過遽 月b力被為不足時指出其耗竭狀況’來確保待被處理之液 體接續有效的過濾。典型地，由此些裝置所監測到的參數 包括自該匣筒之初始啟動後所經過的時間及/或已過攄之液 體量。此些參數可直接地被檢測出或經由和其等相關的函 數例如該過濾水罐之充注周期數、按鈕之壓力等等被測出。 於所有的情況中，通常至少有一開關被連接到指示裝 置用於選擇/或啟動該裝置之一功能的目的，典型地至少2 該指示裝置之初始啟動。於習知技術中，被使用的開關為 按鈕類型，通常具有橡膠保護以使其等為流體密的。此些 開關具有-些嚴重的缺點。首先，其等需要用於其等之啟 動之一定程度的壓力。此產生一 压王種於使用者中有關該啟動 201143877 之有效性的不確定狀態’尤其由於所施加的壓力可能不 足，接觸點可能被氧化，及/或重複壓力經過一段時間可能 造成對橡膠保護之損壞。為了克服此項缺點，已經開始採 用薄膜開關，於其中’該等接點係由二薄膜所形成，至少 其中之一可經一根手指的壓力被變形。即使於此情況中， 該開關會受到磨損，其在經過一段時間後，可能會造成損 壞且甚至可能會使水或濕氣進入該指示裝置中，因而嚴重 地危及其操作。 【發明内容】 本發明之主要目的係提供一種前述類型之過濾裝置， 其在結構及功能上係被設計成克服掉所有被敘述到之有關 月IJ述之習知技術的缺點。 於此目的之中’本發明之一主要目標係提供一種過濾 裝置’於其中該匣筒監測功能係高度可靠的。 此目的及其他目標係經由本發明藉由一依據隨附之申 請專利範圍所製成的滲透過濾裝置被達成的。 本發明之特性及優點藉由以下參考隨附圖式對一較佳 但非唯一之實施例為了引導而非限制之詳細說明可更加清 楚。 【實施方式】 於圖式中，數字丨指出一本發明所述及之類型的滲透 過濾裝置之整體。就此而言，該裝置為一具有—可更換匣 4 201143877 筒之過濾水罐，但亦被同樣考慮用於水壺、茶壺、咖啡壺 等等。 該水罐1包括-外殼2,其具有由一覆蓋3可移除式地 關閉的一注口。一漏斗狀的分配器（或”供給斗,,）6被插設入 該外殼中’以在該水罐丨中形成用於收集待被過濾之水的 一上承器4’及用於收集已過濾之水的—下承器5。 一承座7係形成於該分配器6中以承接一可更換的匣 筒9,該匣筒9以一種當待被過濾的水從上方流至該下承器 時匯流經此匣筒9之方式被定位。 用於指出該匣筒9之生命周期的一裝置1〇被提供在該 覆蓋3上（或在水罐之外殼的另一部分上，例如該把手n)， 以在該匣筒應該被更換時指出該匣筒之耗竭。 該指不裝置ίο包括一套接於一在該覆蓋3中之承座13 中的外.殼12、-用於顯示職筒之有用生命的信號指示例 如是代表殘餘有用生命的長條圖之顯示器14、及用於選擇 及/或啟動該指示裝置之一功能的一電氣開關裝置，例如為 了啟動自E筒之首次使用已經過之時間的—計數器。該開 關裝置匕#電路構件，其具有嵌入—積體電路中的一 電谷式近接開關及一操作電極16。 該電極16係由裝設在該過濾裝置之容器中的一條導電 f生材料所形成的，且藉由未被顯示的導線被連接到電路 15 °較佳地’該電極16被裝^在靠近於該覆蓋3上或在該 水罐之該把手11上之指示裝置10的地方。 電極16以此方式被結合於該指示裝置之該外殼12亦 201143877 疋較佳的’即忒指不裝置形成一單元；其可被分別地處理 且係獨立的，完全獨立及密封。 於該裝置1之操作中，該電極16作用成一習知開關之 按鈕構件，由於其是一電容性電極因而有明顯之不同，當 環繞該電極之介電場以被分佈時，該電極16作動該電路 之電氣開關。因此甚至不須實際地觸及到該電極16以便啟 動該電路15之開關；將—根手指帶#近其便足夠了。由於 此-配置，該電極16可被結合入該指示裝置之該外殼a 中於此其被元全地保護不會意外地接觸液體及濕氣。由 於其不再需要具有經由其佈線及/或去提供和相當不可靠之 薄膜的密封，此亦使其有可能將外殼12做成完全流體密的。 因此，本發明解決了前述的問題，同時提供了許多利 益，包括完全免於結合簡單接點之相當敏感性的磨損，使 该裝置12能以完全流體密的及經過一段時間為可靠的方式 被建構成。 【圖式簡單說明】 圖1為一呈一水罐形式之過濾裝置的概略剖視圖； 圖2為一自圖1之裝置之細部上方之平面視圖。 【主要元件符號說明】 無 6201143877 VI. Description of the Invention: [Technical Field] The present invention relates to a permeation filtering device of the type having a replaceable cartridge according to the scope of the main patent application. [Prior Art] The filtering device having the foregoing characteristics is widely used for filtration of drinking water for household use. They are usually made in the form of jugs, kettles, teapots, and the like. A typical example of this technique is described in PD2008U000033. In such devices, the filter bed of filter resin or other material may be depleted after use and/or after a period of time until the cartridge has to be replaced. Thus, it has been proposed to have means for calculating one or more operating parameters of the cartridge to indicate its depletion condition' when the force is insufficient during the over-boom period to ensure that the liquid to be treated continues to be effectively filtered. Typically, the parameters monitored by such devices include the time elapsed since the initial start of the cartridge and/or the amount of liquid that has passed. Such parameters may be detected directly or via a function associated with them, such as the number of filling cycles of the filtered water tank, the pressure of the button, and the like. In all cases, typically at least one switch is connected to the purpose of the indicating device for selecting and/or activating one of the functions of the device, typically at least 2 initial activation of the indicating device. In the prior art, the switch used is of the push button type and is usually rubber protected to make it fluid tight. These switches have some serious drawbacks. First, they need a certain amount of pressure for their initiation. This produces a pressure king in the user about the uncertainty of the effectiveness of the start 201143877', especially since the applied pressure may be insufficient, the contact points may be oxidized, and/or the repeated pressure may cause rubber protection over a period of time. Damage. In order to overcome this drawback, membrane switches have been used in which the contacts are formed by two films, at least one of which can be deformed by the pressure of one finger. Even in this case, the switch is subject to wear, which may cause damage after a certain period of time and may even cause water or moisture to enter the indicating device, thereby seriously jeopardizing its operation. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a filter device of the foregoing type that is structurally and functionally designed to overcome all of the disadvantages of the prior art described in relation to the above. In this context, one of the primary objects of the present invention is to provide a filter device in which the cartridge monitoring function is highly reliable. This and other objects are achieved by the present invention by means of a permeation filter device made in accordance with the scope of the appended patent application. The details and advantages of the invention are apparent from the following detailed description of the preferred embodiments, [Embodiment] In the drawings, the numeral 丨 indicates the entirety of a permeation filtering device of the type described in the present invention. In this regard, the device is a filtered water tank with a replaceable 2011 4 201143877 cartridge, but is also considered for use in kettles, teapots, coffee makers, and the like. The water tank 1 comprises a casing 2 having a nozzle that is removably closed by a cover 3. A funnel-shaped dispenser (or "feeding bucket") 6 is inserted into the outer casing 'to form an upper bearing 4' for collecting water to be filtered in the water tank and for collecting Filtered water-underloader 5. A socket 7 is formed in the distributor 6 to receive a replaceable cartridge 9 which flows from above to the water to be filtered The lower header is positioned to flow through the cartridge 9. A device 1 for indicating the life cycle of the cartridge 9 is provided on the cover 3 (or on another portion of the outer casing of the water tank, for example The handle n) indicates that the cartridge is depleted when the cartridge should be replaced. The fingerless device ίο includes a set of outer casing 12 connected to a socket 13 in the cover 3, The signal indicative of useful life of the display cylinder is, for example, a display 14 representing a bar chart of residual useful life, and an electrical switching device for selecting and/or activating one of the functions of the indicating device, for example, to start from the E-tube For the first time, the counter that has passed the time is used. The switch device 匕# circuit component has embedded An electric valley type proximity switch and an operating electrode 16 in the integrated circuit. The electrode 16 is formed by a conductive material placed in a container of the filtering device and is not shown Connected to the circuit 15° preferably the electrode 16 is mounted adjacent to the cover 3 or to the indicator device 10 on the handle 11 of the water tank. The electrode 16 is bonded to the indication in this manner. The housing 12 of the device is also 201143877. Preferably, the device does not form a unit; it can be separately processed and independent, completely independent and sealed. In operation of the device 1, the electrode 16 acts as a unit. The button member of the conventional switch is significantly different because it is a capacitive electrode. When the dielectric field surrounding the electrode is distributed, the electrode 16 actuates the electrical switch of the circuit. Therefore, it is not even necessary to actually touch To the electrode 16 to activate the switch of the circuit 15; it is sufficient to bring the finger strap #. Due to this configuration, the electrode 16 can be incorporated into the housing a of the indicating device. Ground protection does not mean Contact with liquids and moisture in the field. This also makes it possible to make the outer casing 12 completely fluid-tight since it no longer requires a seal through its wiring and/or provision and a relatively unreliable film. Thus, the present invention The foregoing problems are solved while providing a number of benefits, including complete freedom from the relatively sensitive wear of the simple contacts, allowing the device 12 to be constructed in a fully fluid-tight and reliable manner over time. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view of a filter device in the form of a water tank; Fig. 2 is a plan view from above the detail of the device of Fig. 1. [Explanation of main component symbols] None 6