201122379 * 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種空調設備，特別是指一種設有濾網 的空調設備。 【先前技術】 習知的空調設備藉由將室内空氣吸入空調設備中，利用 冷凝器或蒸發器的熱交換作用對空氣進行降溫或升溫調節 後，再由空調設備的風道出口排出，達到對室内空氣產生溫 春 度調節的效果。且一般在空調設備的氣流吸入口還會加裝一 防塵濾網以濾除空氣中的灰塵髒污，而為了防止濾網經過長 時間使用而髒污阻塞，影響空調設備的冷/暖房熱交換效 能，空調設備製造廠商多會在使用說明書中提醒使用者定期 清潔濾網的重要性，但常常被使用者忽略。因此部分製造商 會在空調設備中設置一計時裝置來自動累計濾網使用時 間，當達到預設的使用時數（例如30天）便發出警示，以提 醒使用者清洗濾網。然而濾網的使用狀況與環境的落塵量有 φ 很大的關連’在乾淨的環境下’可能累積相當的使用時間， 濾網仍相當清潔’而在落塵量大的環境下，濾網可能在短時 間内就已阻塞，但在此情況下’由於習知空調設備採用之士十 時裝置因為累積的使用時間未到達並不會發出警示，以致请 網在阻塞未清情況下’將導致空調設備之冷/暖房效能明顯 降低。 【發明内容】 因此，本發明之目的，即在提供一種可以即時並確實 201122379 反應濾網阻塞程度以維持系統運作效能之空調設備之濾網 阻塞偵測方法及應用該方法的空調設備。 為達到上述目的’本發明一種空調設備之濾網阻塞偵 測方法’該空調設備具有—風道、一設於風道一端的進氣 濾網及一設於風道另一端，用以將風道中的空氣送出的風 扇，該方法包括：（A)於該風道中設置一氣壓感測器，使在 該風扇運轉時，感測風道中的氣體壓力，並對應產生一偵 測值；及（B)提供一警示單元接收該氣壓感測器輸出之偵測 值，並判斷該偵測值是否達到一預設值，若是則發出一警 示訊息。 本發明實現上述方法的空調設備，包括一風道； 一 s史於該風道一端，用以過濾進入風道的空氣的進氣濾 網，一設於該風道另一端，用以將風道中的空氣送出風道 外部的風扇，一設於該風道中以感測該風道中的氣體壓 力，並對應產生一偵測值的氣壓感測器，以及一警示單元， 其接收該氣壓感測器輪出之偵測值，並判斷該偵測值是否 達到一預設值，若是則發出一警示訊息。 其中該預設值代表該進氣濾網之阻塞情況已達到需要 /月理的程度，且該警不單元透過控制一 LED燈點亮或控制 一蜂鳴器發出聲音來傳達該警示訊息。 可替換地，該警不單元可根據一濾網阻塞程度與氣體 壓力對照表，判斷對應於該偵測值之濾網阻塞程度並發出 一濾網阻塞程度訊息。 較佳地，该警不單元可透過控制一 LED燈之顏色變化 201122379 來傳達該ι網阻塞程度訊息，或者透過控制多顆咖 點亮與否來傳達該濾網阻塞程度訊息。 禮 本發明的功效在於當空調設備之風扇運轉，而使風道 内之氣壓隨著進氣濾網的阻塞程度改變時，藉由在空調μ 備的風道中設置氣壓感測器感測風道中反應餘阻塞程^ 的氣壓值，並由警示單元判斷該氣壓值是否已達到—表示 進氣濾網之阻塞程度已達到需要清洗程度之預設值以適 時發出一警示訊息提醒使用者更換或清洗進氣濾網，使空 調設備不致因進氣濾網阻塞未及時清理而影響運作效能。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在以 下配合參考圖式之一個較佳實施例的詳細說明中，將可清楚 的呈現。 參閱圖1’是本發明空調設備之濾網阻塞偵測方法的一 較佳實施例’該方法應用在如圖2及圖3所示本發明之一空 調設備較佳實施例中’用以偵測空調設備之濾網的阻塞程度 並適時發出警示通知使用者。 如圖2及圖3所示，本實施例之空調設備2包括設於一 機殼20内部的風道2卜一設於風道21之一進氣端22的進 氣渡網23，一設於風道21之一出氣端24的風扇25，一設 於風道21中位於進氣濾網23與風扇25之間的氣壓感測器 26’ 一用以根據氣壓感測器26之感測值判斷進氣濾網23 阻塞程度，並適時發出一警示訊息的警示單元27，以及設 於風道21中用以冷卻空氣（及/或加熱空氣）的冷凝器（及/或 201122379 蒸發器）28和其它空調設備之相關零組件（圖未示其中風 扇25包含一馬達251和一設於風道21氣流流經路徑中並受 馬達251驅動的葉片252。 當空調設備2被啟動後，風扇25開始運轉，並將外部 空氣經由進氣濾網23吸入風道21中，使空氣經由冷凝器（及 /或蒸發器）28冷卻（及/或加熱）後由出氣端24送出，以調節 室内溫度》此時，如圖i之步驟U，氣壓感測器26被啟動 並感測風道21中的氣體壓力。理論上，當進氣濾網23完全 暢通時，風道21内的氣體壓力會接近於風道外的大氣壓 力’但是當進氣濾網23發生阻塞時，在空氣無法順暢地由 進氣濾網23進入風道21中，而風道21中的空氣又被風扇 25抽出的情況下’將造成風道21内的氣體壓力下降，使得 風道21内的氣壓小於風道21外的大氣壓力。亦即，當風扇 25運轉時，風道21内部的氣體壓力會隨著進氣濾網23的 阻塞程度不同而改變。因此氣壓感測器26可以藉由對風道 21内的氣壓進行偵測，而反應出進氣濾網23的阻塞程度， 並對應所測得之氣體壓力產生一偵測值（即氣壓值）。 因此’當進氣濾網23阻塞越嚴重時，氣壓感測器26 將偵測到越低的氣體壓力，並對應產生越小的偵測值，且該 偵測值被氣壓感測器26輸出給警示單元27。 接著，如圖2之步驟12，警示單元27根據一代表進氣 濾網23之阻塞情況已達到需要清理的程度之預設值（氣壓 值），判斷氣壓感測器26輸出之偵測值（氣壓值）是否達到該 預設值，若是，表示進氣濾網23之阻塞情況已影響到空調 201122379 設備運作效能而需要被清理’因此，如步驟13，警示單元 27會發出一警示訊息通知使用者更換或清洗進氣據網23， 該警示訊息可以是令空調設備2的一 LED燈（圖未示）閃 爍，或令空調設備2的一蜂鳴器（圖未示）發出聲音等，但並 不限於上述做法，只要能對使用者產生警示作用的任何警示 況息皆適用於本實施例。 此外，如圖4所示，是風道21内的氣體壓力（絕對氣壓） 與進氣濾網阻塞程度對照表，由表中可以看出通道21内氣 壓與進氣濾網阻塞程度之間的關係，所以，本實施例之除上 述做法外，也可以在警示單元27中預設該氣體壓力（絕對氣 壓）與進氣遽網阻塞程度對照表，使警示單元27可根據該對 照表，得到氣壓感測器26測得之偵測值所對應之濾.網阻塞 程度（例如暢通、輕微阻塞、阻塞、嚴重阻塞），並階段性地 顯示進氣濾網23的阻塞程度，例如藉由警示單元27控制空 調认備2之一 LED燈顯示不同顏色來階段性地顯示進氣濾 網23是在暢通（例如亮綠燈）、輕微阻塞（例如亮黃燈）、阻塞 (例如το紅燈）或嚴重阻塞（例如亮紅燈並不斷閃爍）的方式， 讓使用者可以更精確地得知進氣濾網23的使用狀況。 再者，上述階段性顯示進氣濾網23阻塞程度亦可由警 示單元27控制空調設備2預設的多顆（例如三顆）LED燈點 亮與否來表示’例如暢通時不點亮咖燈，輕微阻塞時點 免-顆LED燈，阻塞時點亮㈣㈣燈，嚴重阻塞時則三 顆LED燈全部點亮。 此外，本實施例之警示單元27雖然是根據風道21令氣 201122379 壓感測器26測得的絕對氣麼值來判斷進氣遽網23的阻塞程 度’但實際上警示單元27也可崎據風道η㈣與外部的 相對氣壓比較來判斷進氣濾網23的阻塞程度。 “上所述’本實施例利用當^調設備2之風扇25運轉 時，風道21内之氣壓會隨著進氣滤網23的阻塞程度而改變 之原理’藉由在空調設備2的風道21中設置氣壓感測器26 感測風道21中與進氣遽網23阻塞程度有關的氣壓值，並由 。示單元27判斷該氣壓值是否已達到代表進氣丨慮網之阻 塞程度已達到需要清洗程度之預設值，而藉由適時發出一警 示訊息給使用者’達到即時提醒使用者更換或清洗進氣滤網 23的目的，使空調設備不致因進氣濾網阻塞未及時清理而 影響運作效能。 惟以上所述者，僅為本發明之較佳實施例而已，當不能 以此限定本發明實施之範圍，即大凡依本發明申請專利範圍 及發明說明内容所作之簡單的等效變化與修飾，皆仍屬本發 明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是本發明空調設備之濾網阻塞偵測方法的一較佳 實施例的流程圖； 圖2是本實施例之空調設備的主要元件方塊示意圖； 圖3是本實施例之空調設備的具體元件結構示意圖；及 圖4是本實施例之絕對氣壓值與濾網阻塞程度對應關 係圖。 201122379 【主要元件符號說明】 2 空調設備 20 21 風道 22 23 進氣濾網 24 25 風扇 26 27 警不早兀 28 251馬達 252 11' -13步驟 機殼 進氣端 出氣端 氣壓感測器 冷凝器（蒸發器） 葉片201122379 * VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to an air conditioning apparatus, and more particularly to an air conditioning apparatus provided with a filter screen. [Prior Art] Conventional air conditioning equipment reduces air temperature or temperature by adjusting the heat exchange effect of a condenser or an evaporator by sucking indoor air into an air conditioner, and then discharging it by the air duct outlet of the air conditioner. Indoor air produces the effect of warming spring adjustment. Generally, a dust filter is installed in the air inlet of the air conditioner to filter out dust and dirt in the air, and in order to prevent the filter from being dirty and blocked after a long time of use, affecting the cold/warm heat exchange of the air conditioner. Performance, air-conditioning equipment manufacturers will often remind users of the importance of cleaning the filter regularly in the instruction manual, but it is often ignored by users. Therefore, some manufacturers will set up a timing device in the air conditioner to automatically accumulate the filter usage time. When the preset usage hours (for example, 30 days) are reached, an alarm is issued to remind the user to clean the filter. However, the use of the filter has a large correlation with the amount of dust in the environment. 'In a clean environment, it may accumulate a considerable amount of time, and the filter is still quite clean.' In an environment with a large amount of dust, the filter may be It has been blocked for a short period of time, but in this case, 'Because the conventional air-conditioning equipment adopts the ten-time device because the accumulated use time has not arrived and will not give a warning, so that the network is blocked, the air conditioner will cause air conditioning. The cold/warm room performance of the equipment is significantly reduced. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a screen blocking detection method for an air conditioner that can immediately and surely block the degree of blocking of a filter screen to maintain system operation efficiency, and an air conditioner using the same. In order to achieve the above object, a method for detecting a screen jam of an air conditioner of the present invention has an air duct, an air filter screen disposed at one end of the air duct, and a wind tunnel disposed at the other end of the air duct for wind The fan sent by the air in the road includes: (A) providing a gas pressure sensor in the air channel to sense the gas pressure in the air channel when the fan is running, and correspondingly generating a detection value; and B) providing a warning unit to receive the detection value of the air pressure sensor output, and determining whether the detection value reaches a preset value, and if yes, issuing a warning message. The air conditioning device for implementing the above method comprises: a wind channel; an air inlet filter screen for filtering air entering the air passage at one end of the air passage, and being disposed at the other end of the air passage for wind The air in the channel is sent out of the fan outside the air duct, and is disposed in the air channel to sense the gas pressure in the air channel, corresponding to a gas pressure sensor that generates a detection value, and a warning unit that receives the air pressure sensing The detected value of the round is detected, and it is determined whether the detected value reaches a preset value, and if so, a warning message is issued. The preset value represents that the blocking condition of the air intake filter has reached the required/monthly level, and the alarm unit transmits the warning message by controlling an LED to light or controlling a buzzer to sound. Alternatively, the alarm unit may determine the degree of filter blocking corresponding to the detected value and issue a screen blocking degree message according to a screen blocking degree and a gas pressure comparison table. Preferably, the alarm unit can communicate the color change of the LED light by controlling the color change of the LED light 201122379, or convey the filter blocking degree information by controlling whether the plurality of coffee lights are illuminated or not. The effect of the invention is that when the fan of the air conditioner operates, and the air pressure in the air duct changes with the degree of blockage of the air inlet filter, the air pressure sensor is provided in the air duct of the air conditioner to sense the reaction in the air duct. The pressure value of the residual block ^, and the warning unit determines whether the air pressure value has been reached - indicating that the air filter screen has reached the preset value of the degree of cleaning required to promptly issue a warning message to prompt the user to replace or clean it. The air filter screen prevents the air conditioning equipment from affecting the operation efficiency due to the air filter clogging not being cleaned up in time. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments of the drawings. 1 is a preferred embodiment of a method for detecting a jam screen of an air conditioner of the present invention. The method is applied to a preferred embodiment of an air conditioner of the present invention as shown in FIGS. 2 and 3. Measure the obstruction of the filter screen of the air conditioner and notify the user in a timely manner. As shown in FIG. 2 and FIG. 3, the air conditioning apparatus 2 of the present embodiment includes an air duct 2 disposed inside a casing 20, and an air intake network 23 disposed at one of the air inlets 22 of the air duct 21. a fan 25 at the outlet end 24 of the air duct 21, and a pneumatic sensor 26' disposed between the air inlet filter 23 and the fan 25 in the air duct 21 for sensing according to the air pressure sensor 26. A warning unit 27 for judging the degree of blockage of the intake filter 23 and issuing a warning message in time, and a condenser (and/or 201122379 evaporator) provided in the duct 21 for cooling the air (and/or heating the air) 28 and related components of other air conditioning equipment (not shown) wherein the fan 25 includes a motor 251 and a blade 252 disposed in the air passage 21 and flowing by the motor 251. When the air conditioner 2 is activated, the fan The operation starts at 25, and the outside air is sucked into the air passage 21 via the air intake filter 23, and the air is cooled (and/or heated) through the condenser (and/or the evaporator) 28, and then sent out from the air outlet 24 to adjust the indoor. At this time, as shown in step U of FIG. i, the air pressure sensor 26 is activated and senses the air passage 21 The gas pressure. Theoretically, when the intake filter 23 is completely unblocked, the gas pressure in the air passage 21 will be close to the atmospheric pressure outside the air duct'. However, when the air intake filter 23 is blocked, the air cannot be smoothly passed by When the air intake filter 23 enters the air duct 21, and the air in the air duct 21 is again extracted by the fan 25, the gas pressure in the air duct 21 is lowered, so that the air pressure in the air duct 21 is smaller than the air duct 21. The atmospheric pressure, that is, when the fan 25 is operated, the gas pressure inside the air duct 21 changes depending on the degree of clogging of the air inlet filter 23. Therefore, the air pressure sensor 26 can be used in the air passage 21 The air pressure is detected, and the degree of blocking of the air intake filter 23 is reflected, and a detected value (ie, a gas pressure value) is generated corresponding to the measured gas pressure. Therefore, 'the more the air intake filter 23 is blocked, the more the air pressure The lower the gas pressure is detected by the sensor 26, and the smaller the detection value is generated, and the detected value is output to the warning unit 27 by the air pressure sensor 26. Next, as shown in step 12 of FIG. The warning unit 27 is based on a blockage of the air intake filter 23 The preset value (barometric pressure value) of the degree to be cleaned has been reached, and it is judged whether the detected value (barometric pressure value) outputted by the air pressure sensor 26 reaches the preset value, and if so, it indicates that the blocking condition of the air intake filter 23 has been affected. To the air conditioner 201122379, the equipment needs to be cleaned. Therefore, in step 13, the warning unit 27 will send a warning message to inform the user to replace or clean the air intake net 23, and the warning message may be an LED light of the air conditioner 2. (not shown) flashes, or a buzzer (not shown) of the air conditioner 2 emits a sound, etc., but is not limited to the above, as long as any warning condition that can alert the user is applied to the present. Example. In addition, as shown in FIG. 4, it is a comparison table between the gas pressure (absolute air pressure) in the air duct 21 and the air intake filter blocking degree. It can be seen from the table that the air pressure in the air passage 21 is between the air intake filter and the air intake filter. Therefore, in addition to the above, the gas pressure (absolute air pressure) and the air intake net blocking degree comparison table may be preset in the warning unit 27, so that the warning unit 27 can obtain the comparison table according to the comparison table. The degree of blockage (eg, unblocked, slightly blocked, blocked, severely blocked) corresponding to the detected value of the detected value by the barometric sensor 26, and the degree of blockage of the intake filter 23 is periodically displayed, for example, by warning The unit 27 controls one of the LED lights of the air conditioner 2 to display different colors to periodically display that the air filter 23 is unblocked (for example, a green light), slightly blocked (for example, a yellow light), blocked (for example, a red light), or The way of severe blockage (such as a bright red light and continuous flashing) allows the user to know the usage of the air filter 23 more accurately. Furthermore, the above-mentioned staged display of the degree of blockage of the air intake filter 23 can also be controlled by the warning unit 27 to control whether a plurality of (for example, three) LED lights preset by the air conditioner 2 are lit or not to indicate that, for example, the light is not turned on when the light is turned on. When it is slightly blocked, it is free of LED lights. When it is blocked, it lights up (4) (4) lights. When it is severely blocked, all three LED lights are on. In addition, the warning unit 27 of the present embodiment determines the degree of blockage of the intake air net 23 based on the absolute air value measured by the air pressure sensor 21 and the pressure sensor 26 in the air passage 21, but in fact, the warning unit 27 can also be The degree of clogging of the intake filter 23 is judged based on the comparison of the relative turbulence of the air passage η (4) with the outside. "The above description" utilizes the principle that the air pressure in the air duct 21 changes with the degree of clogging of the air intake filter 23 when the fan 25 of the apparatus 2 is operated "by the wind in the air conditioner 2 The air pressure sensor 26 is disposed in the track 21 to sense the air pressure value in the air passage 21 related to the degree of blockage of the intake air net 23, and the indicating unit 27 determines whether the air pressure value has reached the level of blocking of the air intake filter network. The preset value of the degree of cleaning has been reached, and a warning message is sent to the user to promptly remind the user to replace or clean the air filter 23 so that the air conditioner does not block due to the air filter. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple scope of the patent application scope and the description of the invention according to the present invention. Equivalent changes and modifications are still within the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of a preferred embodiment of a method for detecting a jam screen of an air conditioner of the present invention; FIG. 3 is a schematic structural diagram of specific components of the air conditioning apparatus of the present embodiment; and FIG. 4 is a diagram showing the relationship between the absolute air pressure value and the degree of blocking of the filter screen of the present embodiment. Component symbol description] 2 Air conditioning equipment 20 21 Air duct 22 23 Intake air filter 24 25 Fan 26 27 Not early warning 28 251 Motor 252 11' -13 Step housing inlet end outlet end pressure sensor condenser (evaporation Blade