TWI651495B

TWI651495B - Air conditioner

Info

Publication number: TWI651495B
Application number: TW106137387A
Authority: TW
Inventors: 梅澤光; 上田貴郎; 高畑茂; 田中幸範
Original assignee: 日商日立江森自控空調有限公司
Priority date: 2017-04-28
Filing date: 2017-10-30
Publication date: 2019-02-21
Also published as: FR3065789A1; ES2698267B2; CN115095917B; CN115095917A; FR3065789B1; JP6296633B1; MY169892A; JP2018189256A; ES2698267A1; CN109154446A; WO2018198396A1; TW201839329A

Abstract

可適當地限制空氣調節機之洗淨熱交換器的洗淨運轉。為此，空氣調節機，具備：製冷循環，其具有冷卻或是加熱空氣的熱交換器；控制裝置（130），其可進行暖氣運轉、冷氣運轉、除濕運轉等的實行，並且控制製冷循環，來實行洗淨熱交換器之表面的洗淨運轉。此處，控制裝置（130），具有：當發生既定條件時，限制洗淨運轉之實行的限制控制部（138）。The washing operation of the washing heat exchanger of the air conditioner can be appropriately restricted. To this end, the air conditioner includes a refrigeration cycle having a heat exchanger for cooling or heating the air, and a control device (130) for performing heating operation, cooling operation, dehumidification operation, and the like, and controlling the refrigeration cycle, To perform the cleaning operation for cleaning the surface of the heat exchanger. Here, the control device (130) includes a restriction control unit (138) that restricts the execution of the washing operation when a predetermined condition occurs.

Description

Air conditioner

本發明是關於空氣調節機。 The present invention relates to an air conditioner.

在下述專利文獻1的說明書段落0019，記載著「此外，控制裝置11在暖氣運轉模式下，具備：在暖氣運轉後於室內側熱交換器4的鰭片4b表面附著水來去除鰭片4b表面的油成分等之實行熱交換器清潔運轉模式的手段」。 In the description paragraph 0019 of the following Patent Document 1, it is described that “the control device 11 includes, in the heating operation mode, water adhered to the surface of the fins 4b of the indoor heat exchanger 4 after the heating operation to remove the surface of the fins 4b Means for implementing the clean operation mode of heat exchangers ".

[Prior technical literature] [Patent Literature]

[專利文獻1]日本專利第4931566號公報 [Patent Document 1] Japanese Patent No. 4931566

但是，上述專利文獻1，對於適當限制熱交換器清潔運轉模式這點並沒有特別記載。 However, the above-mentioned Patent Document 1 does not specifically describe the point that the heat exchanger cleaning operation mode is appropriately restricted.

本發明是有鑑於上述情事而完成者，其目的在於提供一種可適當地限制洗淨熱交換器之洗淨運轉的空氣調節機。 The present invention has been made in view of the foregoing circumstances, and an object thereof is to provide an air conditioner capable of appropriately restricting the cleaning operation of a cleaning heat exchanger.

在用以解決上述課題之本發明的空氣調節機，其特徵為具備：製冷循環，其具有冷卻或是加熱空調室之空氣的室內熱交換器；控制裝置，其控制前述製冷循環，來實行洗淨前述室內熱交換器之表面的洗淨運轉，前述控制裝置，具有：當發生既定條件時，限制前述洗淨運轉之實行的限制控制部；探測室外溫度的外氣溫探測部，前述控制裝置，是將前述洗淨運轉之流通於前述室內熱交換器之冷媒的蒸發溫度設定為冰點以下，前述限制控制部，是當前述室外溫度低於來自前述室內熱交換器的排水可能結冰的第1既定溫度的話，限制前述洗淨運轉。 The air conditioner of the present invention for solving the above-mentioned problems is characterized by comprising: a refrigeration cycle having an indoor heat exchanger for cooling or heating the air of an air-conditioned room; and a control device that controls the refrigeration cycle to perform washing. For the cleaning operation of cleaning the surface of the indoor heat exchanger, the control device includes a restriction control unit that restricts the execution of the washing operation when a predetermined condition occurs, an outside temperature detection unit that detects an outdoor temperature, and the control device, The evaporation temperature of the refrigerant flowing through the indoor heat exchanger in the cleaning operation is set to be lower than the freezing point, and the restriction control unit is the first one that may freeze when the outdoor temperature is lower than the drainage from the indoor heat exchanger. At a predetermined temperature, the aforementioned washing operation is restricted.

根據本發明，可適當地限制洗淨熱交換器的洗淨運轉。 According to the present invention, the washing operation of the washing heat exchanger can be appropriately restricted.

[0008] ［實施形態的構造］〈空氣調節機的整體構造〉　　圖1為本發明之一實施形態之空氣調節機S的示意圖。　　圖1中，空氣調節機S具有：室內機100、室外機200、遙控器Re。室內機100與室外機200是以冷媒配管（未圖示）來連接，藉由周知的製冷循環，來對設置有室內機100的屋內空間（以下稱為空調室）進行空調。且，室內機100與室外機200，是透過通訊纜線（未圖示）來彼此接收傳送資訊。又，於室外機200，設有探測外氣溫的外氣溫探測部163。　　[0009] 遙控器Re是由使用者來操作，來對室內機100的遙控器接收傳送部Q送出紅外線訊號。該訊號的內容，是下達運轉、設定溫度的變更、計時器值的設定、運轉模式的變更、下達停止等的指令。空氣調節機S，是根據該等訊號，來進行暖氣運轉、冷氣運轉、除濕運轉、洗淨運轉等的空調運轉。且，室內機100的遙控器接收傳送部Q，是將室溫資訊、濕度資訊、電費資訊等之資訊傳送至遙控器Re，來對使用者通知該等資訊。　　[0010] 圖2為室內機100之拍攝部110之位置的側剖面圖。　　筐體基座101，是將熱交換器102、送風風扇103、過濾器108等的內部構造體予以收容。熱交換器102具有複數根傳熱管102a。傳熱管102a，是構成為：使藉由送風風扇103吸入至室內機100內的空氣，與流通於傳熱管102a的冷媒進行熱交換，來對該空氣進行加熱或冷卻。又，傳熱管102a，是連通於上述冷媒配管（未圖示），來構成周知之製冷循環（未圖示）的一部分。　　[0011] 藉由使圖2所示的送風風扇103旋轉，透過空氣吸入口107及過濾器108來吸取空調室內的空氣，並將在熱交換器102進行過熱交換的空氣導引至吹出風路109a。此外，被導引至吹出風路109a的空氣，是藉由左右風向板104及上下風向板105而被調整風向，並由空氣吹出口109b吹送來對空調室內進行空調。　　[0012] 左右風向板104，是依據來自後述之控制裝置130（圖3）的指示，以設在下部的旋動軸（未圖示）為支點，藉由左右風向板用馬達（未圖示）來旋動。上下風向板105，是依據來自後述之控制裝置130（圖3）的指示，以設在兩端部的旋動軸（未圖示）為支點，藉由上下風向板用馬達（未圖示）來旋動。藉此，可對空調室內所期望的位置吹送空調風。　　[0013] 在設置成將室內機100的前面予以覆蓋之前面面板106的下部，設有拍攝部110與可見光遮斷過濾器部117。拍攝部110適用一般的攝影機。此種的攝影機，為了重現以人眼所見的顏色而具有以可見光波長為中心的感度，但在紫外線波長及近紅外線波長亦有某種程度的感度。可見光遮斷過濾器部117，具有光學過濾器，使可見光波長的光衰減，來特別讓近紅外線波長通過。　　[0014] 拍攝部110，是藉由變更光軸的方向，而可取得熱交換器102的圖像資料。過濾器驅動部116，是因應必要來將可見光遮斷過濾器部117插入至拍攝部110的光軸中。該拍攝部110或可見光遮斷過濾器部117等的設置位置，是因應所取得之映像的目的而可變更，並不限定於圖1的位置。　　[0015] 將可見光遮斷過濾器部117放置在拍攝部110的光軸中來拍攝空調室內時，可取得近紅外線的亮度資料亦即近紅外線圖像。若單純拍攝空調室內的可見光時，例如白色的部分會有誤判為比實際上還「亮」的情況。相對於此，近紅外線圖像中，可去除空調室內之各部的顏色、圖案的影響。在此，本實施形態中，過濾器驅動部116，是因應必要來將可見光遮斷過濾器部117插入至拍攝部110的光軸中。　　[0016] 又，在對空調室內的日照明顯強烈的情況下，亦可將可見光遮斷過濾器部117從拍攝部110的光軸移開。且，亦可變更光學過濾器的規格，來使可見光遮斷過濾器部117讓紫外線透過。紅外線投光器115，例如為近紅外線二極體，對空調室內照射紅外線。這是為了使用紅外線照射前與紅外線照射後的亮度差異圖像，來正確地探測人體。　　[0017] 拍攝部110，是從拍攝部110的設置位置相對於水平方向設置成以既定角度朝向下方，而可適當地拍攝空調室內。且，拍攝部110，是左右擺動光軸，藉此可探測出空調室內之寬廣範圍的人體。但是，對於詳細的拍攝部110的搭載位置或角度，只要配合空氣調節機S的規格或用途來設定即可，並不用來限定構造。又，圖1、圖2所示之空氣調節機S的構造，僅為關於本實施形態的一例，本發明當然不限定適用在本實施形態。　　[0018] 〈控制裝置的構造〉　　圖3為本實施形態的空氣調節機S所適用之控制裝置130的方塊圖。　　圖3中，控制裝置130具有：攝影機微控制器130A、主微控制器130B、負載驅動部150、環境探測部160。　　且，上述的拍攝部110，具有：調整拍攝範圍或焦距的光學透鏡111、將從光學透鏡111射入的室內光予以變換成電氣訊號的拍攝元件112、將拍攝元件112的訊號予以數位化來變換成圖像資料的A/D變換器113、將該圖像資料的亮度或色調予以補正的數位訊號處理部114。　　[0019] 在此，進行撮影之際，因應所適用之產品的規格來適用適當的撮影參數（快門速度、白平衡、對比、消除雜訊等之一般的補正）為佳。根據拍攝部110的感度，藉由適用上述的可見光遮斷過濾器部117（參照圖2），而可取得適合人體探測的圖像資料。　　[0020] 且，環境探測部160，具有：室溫探測部161、照度探測部162、探測室外溫度的外氣溫探測部163、探測熱交換器102（參照圖2）溫度的熱交換器溫度探測部164。在此，室溫探測部161，為探測空調室內之溫度者，較佳為適用熱電元件等之遠紅外線感測器，從而可檢測出與拍攝部110的撮影範圍相同程度之範圍的室溫。且，照度探測部162，具有探測空調室內之照度的照度感測器。且，照度探測部162，亦可與照度一起測量照射至空調室內的日照量。且，亦可取代照度探測部162，改成根據拍攝部110的拍攝結果來測量照度。　　[0021] 且，如圖1所示般，外氣溫探測部163，是探測室外機200所設置的場所亦即空調室外的溫度。外氣溫探測部163，具有熱敏電阻等之半導體溫度感測器。且，熱交換器溫度探測部164，具有熱敏電阻等之半導體溫度感測器。如圖2所示般，熱交換器溫度探測部164，是安裝在熱交換器102的上端部，並探測熱交換器102的表面溫度。又，於環境探測部160，除了上述的之外，亦可因應必要來設置使用菲涅爾透鏡及紅外線感測器的活動量探測感測器、或是濕度感測器等之各種感測器。　　[0022] 且，攝影機微控制器130A具有記憶部140A，主微控制器130B具有記憶部140B。而且，記憶部140A、140B，各自具有RAM（Random Access Memory，無符號）及ROM（Read Only Memory，無符號）。且，攝影機微控制器130A及主微控制器130B，具備未圖示的CPU（Central Processing Unit）等之作為一般電腦的硬體，於ROM儲存有藉由CPU來執行的控制程式或各種資料等。在攝影機微控制器130A及主微控制器130B的內部，記憶部140A、140B以外的方塊是表示藉由控制程式等來實現的功能。　　[0023] 亦即，攝影機微控制器130A，具有圖像探測部139。而且，該圖像探測部139，具有：人體探測部131、髒污探測部132。且，主微控制器130B，具有：演算處理部141、自動運轉部135、驅動控制部136、時間計測部137、限制控制部138。　　[0024] 控制裝置130，可指定暖氣運轉、冷氣運轉、除濕運轉、及洗淨運轉之任一者，來使空氣調節機S的製冷循環（未圖示）動作。其中，暖氣運轉、冷氣運轉及除濕運轉，與周知的空氣調節機相同。且，所謂的洗淨運轉，是使熱交換器102的表面結露，以結露的水來洗淨熱交換器102之表面的運轉。洗淨運轉中，控制裝置130，是將流通於熱交換器102之冷媒的蒸發溫度，設定成露點溫度以下。且，洗淨運轉之冷媒的蒸發溫度，是設定成比除濕運轉之冷媒的蒸發溫度還要低（較佳為冰點之下）。　　[0025] 在此，於洗淨運轉，有著「強洗淨模式」及「弱洗淨模式」的運轉模式。所謂的弱洗淨模式，是將熱交換器102的溫度設定得比強洗淨模式還要高，是抑制能量消耗用的運轉模式。強洗淨模式中，控制裝置130，是使熱交換器102的表面冷卻至小於0℃為止。藉此，熱交換器102的表面會結霜。之後，控制裝置130，是對熱交換器102加熱來使霜融解，並以產生的水來洗淨熱交換器102的表面。另一方面，弱洗淨模式中，熱交換器102的表面有成為0℃以上的情況。　　[0026] 且，主微控制器130B，是透過遙控器接收傳送部Q，接收來自使用者的操作指示，並根據由環境探測部160所供給的各種環境資訊，或是來自遙控器接收傳送部Q的操作指令，透過負載驅動部150來控制各部。負載驅動部150，是根據來自主微控制器130B的指令，從而驅動：製冷循環（未圖示）、送風風扇103用的風扇馬達（未圖示）、左右風向板104用的風扇馬達（未圖示）、上下風向板105用的風扇馬達（未圖示）、室外機200所具備的壓縮機馬達（未圖示）等。　　[0027] 攝影機微控制器130A與主微控制器130B，是彼此交互傳輸各種動作指令。特別是，攝影機微控制器130A，是將圖像探測部139等的探測結果供給至主微控制器130B，主微控制器130B，是對攝影機微控制器130A，輸出拍攝要求訊號。且，以拍攝部110來取得之室內的圖像資料，是被供給至圖像探測部139，而在圖像探測部139進行各種的圖像處理。首先，髒污探測部132，是探測附著在熱交換器102表面的髒污。此處所指的「髒污」，包含有附著於熱交換器102表面的油膜，或是浮在熱交換器102表面的塵埃等之雙方。　　[0028] 且，人體探測部131，是根據由拍攝部110所供給的圖像資料，探測出室內人數、各室內人的位置、室內人的頭部、胸部、手、腳等的部位位置，或該等部位的動作。人體探測部131及髒污探測部132，亦可根據由拍攝部110所供給之相同規格的圖像資料來進行人體的部位或髒污的探測。且，於人體探測部131及髒污探測部132，將各個適合的撮影參數設定在拍攝部110的數位訊號處理部114亦可。此情況時，人體探測部131及髒污探測部132，是各自根據施以不同的訊號處理的結果，來進行人體的部位，或熱交換器102之髒污的探測亦可。　　[0029] 人體探測部131及髒污探測部132的探測結果，是供給至主微控制器130B的演算處理部141。演算處理部141，是對控制裝置130統整控制，為了空調運轉（暖氣運轉、冷氣運轉、除濕運轉或洗淨運轉），進行控制裝置130內之各部的運轉設定，控制驅動控制部136等，來實行空調運轉。上述的拍攝部110，是根據來自演算處理部141的拍攝要求訊號，拍攝室內及熱交換器102。　　[0030] 但是，藉由圖像探測部139的圖像處理所得到的探測結果，亦可只有室內人的位置或活動量等的資訊、距離資訊等的資訊，並不包含可讓人目視之映像的圖像資料。藉此，可減輕記憶手段140A、140B所保持的資料量，並成為圖像資料不會被拿到控制裝置130之外的構造，可實現空調室內之室內人的隱私保護。　　[0031] 包含在主微控制器130B，或是自動運轉部135，主要是實行「安眠功能」。這是適合在特別難睡的晚上來使用的功能。亦即，所謂的安眠功能，是經常使空氣調節機S成為OFF狀態，例如，在室溫成為既定值以上的情況下，自動實行弱冷氣運轉的功能。且，驅動控制部136，是根據演算處理部141等的指令，控制負載驅動部150等。且，時間計測部137，是計測空氣調節機S的運轉開始時刻、運轉繼續時間、運轉停止時間等之各種時間資訊。且，限制控制部138，是因應必要來限制演算處理部141所實行的洗淨運轉。其詳細與動作一同暫留後述。　　[0032] 且，控制裝置130，具有：攝影機基板122、控制基板124。於控制基板124實裝有主微控制器130B，於攝影機基板122實裝有攝影機微控制器130A與拍攝部110。實裝在攝影機基板122的拍攝部110及攝影機微控制器130A，是進行各種圖像處理，故得進行較多的資料處理，傾向於高速動作。因此，於攝影機基板122，雖然比較高價，但使用適合高速動作的多層基板為佳。另一方面，於主微控制器130B，並不要求多高速的動作，故於控制基板124可適用低價格的基板。　　[0033] 本實施形態中，控制裝置130，具有攝影機基板122與控制基板124，故在兩者之間會發生通訊。但是，兩者之間的通訊內容，例如為人體探測部131及髒污探測部132所致之探測結果或各種動作指令等，故通訊量可以比較小。因此，兩者之間的通訊，以連接線數量較少的串行通訊為佳。如此一來，成為將設在控制裝置130的回路基板分割成攝影機基板122及控制基板124之2片的構造，可便宜地構成控制裝置130。　　[0034] ［實施形態的動作］〈自動洗淨運轉〉　　接著，說明本實施形態的動作。　　上述的「洗淨運轉」，有著例如以既定時間間隔來自動實行的「自動洗淨運轉」、以及使用者手動操作遙控器Re（操作部）來啟動的「手動洗淨運轉」等2種類。且，使用者，可事先指定是否允許自動洗淨運轉。此外，使用者，在允許自動洗淨運轉的情況下，可指定當人在室內時是否允許自動洗淨運轉的實行。這是因為，實行洗淨運轉的話，室溫及濕度會稍微下降，故對自動實行洗淨運轉會感到不適的使用者亦存在的緣故。　　[0035] 圖4及圖5，是控制裝置130中所實行之定時中斷子程式的流程圖，本子程式是以既定的定時中斷周期（例如數秒或數分）來起動。本子程式，主要是適用於自動洗淨運轉。　　[0036] 圖4中的處理進行到步驟S2時，限制控制部138，會判斷自動洗淨運轉的起動是否被允許。在此，若判斷為「No」時，限制控制部138會禁止該時間點的自動洗淨運轉。關於此情況下的動作暫留後述。另一方面，在步驟S2判斷為「Yes」的話，處理進行到步驟S4，限制控制部138，會判斷上次的洗淨運轉（自動、手動之任一者）結束之後的運轉時間是否為既定的運轉間隔D1（第1動作時間）以上。該運轉間隔D1，是可實行自動洗淨運轉的間隔，例如為10小時～1000小時左右的值即可。　　[0037] 在此若判斷為「No」的話，限制控制部138會禁止該時間點的自動洗淨運轉。另一方面，若判斷為「Yes」時，處理進行到步驟S6，限制控制部138，會判斷「人在室內時的自動洗淨運轉有被允許」或是「空調室內沒有人」之中，是否符合至少其中一方的條件。換言之，人在室內時的自動洗淨運轉被禁止，且空調室內有人存在的情況下，會判斷為「No」，限制控制部138會禁止該時間點的自動洗淨運轉。　　[0038] 另一方面，在步驟S6判斷為「Yes」的話，處理進行到步驟S8，限制控制部138，是根據照度探測部162的探測結果，來判斷空調室內的照度是否在既定值以上。在此若判斷為「No」的話，限制控制部138會禁止該時間點的自動洗淨運轉。這是因為，照度未達既定值的話，室內人為就寢中的可能性較高。另一方面，在步驟S10判斷為「Yes」的話，處理進行到步驟S10，限制控制部138會判斷「安眠功能」是否為OFF狀態。　　[0039] 若安眠功能為ON狀態的話，在步驟S10判斷為「No」，處理進行到步驟S12。在步驟S12中，限制控制部138，會判斷上次的洗淨運轉結束之後的運轉時間是否經過既定的運轉間隔D2（第3動作時間）。在此，運轉間隔D2為比上述的運轉間隔D1還要長的時間，例如為運轉間隔D1的2倍左右的時間即可。在此若判斷為「No」的話，限制控制部138會禁止該時間點的自動洗淨運轉。另一方面，若步驟S10或S12之任一者判斷為「Yes」的話，處理進行到步驟S14。　　[0040] 在此，針對步驟S10及S12的意義進行說明。首先，安眠功能為ON狀態的話，室內人為就寢中的可能性較高，故在步驟S10判斷為「No」的情況下，限制控制部138原則上以禁止自動洗淨運轉為佳。但是，不管起床後還是就寢中，都不間斷地連續使用安眠功能的使用者亦存在。此情況時，若以安眠功能為ON狀態為理由立即禁止自動洗淨運轉的話，不管到何時都無法實行自動洗淨運轉。因此，限制控制部138，是在步驟S12中，判斷是否從上次的洗淨運轉經過了比通常的運轉間隔D1還要長的運轉間隔D2。亦即，在步驟S12判斷為「Yes」的話，只要符合其他條件則實行自動洗淨運轉。　　[0041] 攝影機微控制器130A的人體探測部131（參照圖3），是根據室內人的位置、姿勢、動作等，在室內人睡覺翻身的情況下，檢測出該內容，並通知主微控制器130B。圖4的處理進行到步驟S14時，限制控制部138，會判斷過去的既定時間內是否沒有檢測出睡覺翻身。在檢測有睡覺翻身的情況下判斷為「No」，限制控制部138會禁止該時點的自動洗淨運轉。這是因為，在檢測出睡覺翻身的情況下，室內人為就寢中的可能性較高。另一方面，在步驟S14判斷為「Yes」的話，處理進行到步驟S16。　　[0042] 步驟S16中，限制控制部138，會判斷外氣溫探測部163（參照圖3）所探測的外氣溫是否為既定溫度T1（第1既定溫度）以上。此處的溫度T1，例如設為0℃即可。這是因為，當外氣溫為冰點以下亦即小於0℃的話，將結露的水排出至室外的排水管（未圖示）會結冰而堵塞的緣故。但是，使用者亦可將溫度T1設為0℃以上之期望的值。這是因為，希望「為了避免在較冷的時間帶（例如小於5℃時）進一步使室內變冷」的使用者亦存在的緣故。在步驟S16判斷為「No」的話，限制控制部138會禁止該時點的自動洗淨運轉。另一方面，在步驟S16判斷為「Yes」的話，處理進行到步驟S18。　　[0043] 步驟S18中，限制控制部138，會判斷熱交換器溫度探測部164（參照圖3）所探測的熱交換器溫度是否為既定溫度T2（第2既定溫度、第3既定溫度）以上。此處，溫度T2是「若為該溫度以上的話，則可對製冷循環及熱交換器102進行穩定之洗淨運轉的溫度」。既定溫度T2，是依製冷循環或熱交換器102的構造而不同，但例如為-30℃即可。在步驟S18判斷為「No」的話，限制控制部138會禁止該時點的自動洗淨運轉。另一方面，在步驟S18判斷為「Yes」的話，處理進行到步驟S20（參照圖5）。　　[0044] 步驟S20中，限制控制部138，會判斷空氣調節機S的冷氣、暖氣、除濕或洗淨運轉是否停止，且，是否從停止時經過既定時間D3。這是因為，若沒有從運轉停止經過充分時間（既定時間D3）的話，會有因上次運轉的影響而對洗淨運轉造成阻礙的情況。此處若判斷為「No」的話，處理進行到步驟S22，限制控制部138會判斷是否符合既定的開始條件。這是因為，即使沒有從運轉停止經過既定時間D3，亦有可以開始洗淨運轉的情況。　　[0045] 此處的「開始條件」，例如為「冷氣運轉後，熱交換器溫度為露點溫度T3以上的情況」。這種狀況，例如在設定溫度為28℃左右之弱冷氣運轉之後會發生。在步驟S22判斷為「No」的話，限制控制部138會禁止該時點的自動洗淨運轉。另一方面，若步驟S20或S22之任一者判斷為「Yes」的話，處理進行到步驟S24。　　[0046] 步驟S24中，演算處理部141，會判斷是否符合「強洗淨開始條件」。此處，所謂的強洗淨開始條件，為開始強洗淨模式之洗淨運轉的條件。如上述般，洗淨運轉有著強洗淨模式及弱洗淨模式的運轉模式，強洗淨模式的能量消耗比弱洗淨模式還要大。在此，本實施形態中，是交互選擇強洗淨模式與弱洗淨模式，藉此試圖抑制電力消耗。具體來說，是將「上次洗淨運轉的運轉模式為弱洗淨模式」、「強洗淨模式的洗淨運轉在動作時間D4（第2動作時間）以上都沒被實行」等的條件，適用為「強洗淨開始條件」即可。這是因為，從強洗淨模式的洗淨運轉之後沒經過多少運轉時間的話，認為附著在熱交換器102的髒污較少的緣故。　　[0047] 在步驟S24判斷為「Yes」的話，處理進入到步驟S32，演算處理部141會開始強洗淨模式的洗淨運轉。另一方面，在步驟S24判斷為「No」的話，處理進入到步驟S34，演算處理部141會開始弱洗淨模式的洗淨運轉。接著，處理進行到步驟S36的話，演算處理部141，會判斷洗淨運轉是否結束。在此若判斷為「No」的話，處理進行到步驟S40。此處，與上述的步驟S18同樣地，限制控制部138，會判斷熱交換器溫度是否為既定溫度T2（例如-30℃）以上。在此若判斷為「No」的話，處理回到步驟S36。　　[0048] 以後，只要熱交換器溫度為既定溫度T2以上，則反覆進行步驟S36及S40的迴圈。在反覆該迴圈的期間中，演算處理部141，是持續進行洗淨運轉的流程。例如，選擇了強洗淨模式的情況下，演算處理部141，會使熱交換器102的表面冷卻至小於0℃，並藉由在該狀態持續既定時間，而使熱交換器102的表面結霜。之後，藉由熱交換器102來對霜加熱，在既定溫度以上的狀態持續既定時間。藉此，使霜融解，藉由所產生的水來洗淨熱交換器102的表面。　　[0049] 該等一連串的行程結束時，會在處理進行到步驟S36之際判斷為「Yes」，而使處理進行到步驟S38。在步驟S38中，演算處理部141，會將設在時間計測部137（參照圖3）的自動洗淨計時器（未圖示）之計時器予以歸零，並結束本子程式的處理。在此，所謂的自動洗淨計時器，是將空氣調節機S實行冷氣、暖氣或除濕運轉之時間予以計數的計時器。首先，在針對步驟S4及S12進行說明之際，是針對空氣調節機S的「運轉時間」進行了講解，但所謂的「運轉時間」，是代表著「自動洗淨計時器的計數結果」。　　[0050] 且，本實施形態中，針對洗淨運轉，是使用「結束」及「停止」等用詞。在此，所謂的「停止」，是指不問理由為何，使洗淨運轉停止之事。另一方面，所謂的「結束」，是指完整實行洗淨運轉之一連串行程的結果，從而使洗淨運轉停止之事。因此，「結束」是包含在「停止」的概念內。且，在洗淨運轉「結束」的情況下，演算處理部141，會藉由上述的步驟S38來將自動洗淨計時器予以歸零，就這點來看，可與因異常等導致的「停止」有所區別。　　[0051] 在反覆進行上述步驟S36及S40的迴圈之際，若熱交換器溫度未達既定溫度T2（例如-30℃）的話，在步驟S40判斷為「No」，處理進行到步驟S42。在此，限制控制部138，會使洗淨運轉「停止」，並結束本子程式的處理。在藉由該步驟S42來停止洗淨運轉的情況時，上述自動洗淨計時器不會歸零。因此，在下次的定時中斷時間點（例如數秒後或數分後）使定時中斷子程式（圖4、圖5）再次起動的話，在步驟S4判斷為「Yes」（從上次的洗淨運轉經過了運轉間隔D1）。　　[0052] 而且，之後當處理進行到步驟S18之際，只要熱交換器溫度回歸到既定溫度T2以上，則判斷為「Yes」。而且，只要從之前洗淨運轉被停止的時間點（亦即，實行了步驟S42的時間點）經過既定時間D3的話，藉由步驟S24以後的處理，演算處理部141會再次開始洗淨運轉。　　[0053] 且，如上述般，在步驟S2～S8、S12～S18、S22之中任一處判斷為「No」的話，限制控制部138會在該時間點禁止自動洗淨運轉。此情況下，處理進行到圖5的步驟S26，演算處理部141會判斷是否符合「髒污計測條件」。亦即，本實施形態中，演算處理部141，是對攝影機微控制器130A每隔既定的運轉時間就輸出指令，來進行熱交換器102的髒污探測。因此，從輸出前次指令的時間點經過既定的運轉時間的話，便符合「髒污計測條件」。　　[0054] 在步驟S26判斷為「Yes」的話，演算處理部141，會進行髒污計測。亦即，演算處理部141，是對攝影機微控制器130A輸出應實行髒污計測的動作指令。攝影機微控制器130A，會因應該動作指令，以拍攝部110來拍攝熱交換器102，並取得該圖像資料。然後，髒污探測部132，是根據該圖像資料，來探測熱交換器102的髒污程度。　　[0055] 接著，處理進行到步驟S30的話，演算處理部141，會根據熱交換器102之髒污程度的探測結果，來更新運轉間隔D1、D2。亦即，髒污程度越大，則使運轉間隔D1、D2越短，使熱交換器102被頻繁地洗淨。藉由上述，來結束本子程式的處理。　　[0056] 如上述般，在步驟S6中，若禁止人在室內時的自動洗淨運轉的話，只要有檢測出室內人就禁止該時間點的自動洗淨運轉。但是，到下次的定時中斷為止若室內人離室的話，自動洗淨運轉便可實行。在此，定時中斷子程式（圖4、圖5），是以比較短的定時中斷周期（例如數秒或數分）來起動，故本實施形態的動作，可以認為是「因人體探測部131檢測到人體而限制自動洗淨運轉之後，若人體探測部131變得檢測不到人體的話，就實行自動洗淨運轉」。　　[0057] 同樣地，在步驟S8中，若空調室內的照度未達既定值的話，會禁止該時間點的自動洗淨運轉。但是，到下次的定時中斷為止若照度成為既定值以上的話，自動洗淨運轉便可實行。因此，本實施形態的動作，可以認為是「因照度探測部162所探測的照度未達既定值而限制自動洗淨運轉之後，若照度成為既定值以上的話，就實行自動洗淨運轉」。　　[0058] 〈手動洗淨運轉〉　　圖6為在控制裝置130所實行之手動洗淨運轉子程式的流程圖。本子程式，是在遙控器Re中，當使用者進行了指示手動洗淨運轉之既定的操作之際而被起動。　　圖6的處理進行到步驟S60時，限制控制部138，會與上述步驟S16（參照圖4）同樣地，判斷外氣溫是否為既定溫度T1以上。在此若判斷為「Yes」的話，處理進行到步驟S62。　　[0059] 步驟S62中，限制控制部138，是與上述步驟S18（參照圖4）同樣地，判斷熱交換器溫度是否為既定溫度T2以上。在此若判斷為「Yes」的話，處理進行到步驟S64。　　另一方面，在步驟S60或S62判斷為「No」的話，限制控制部138會禁止該時點的自動洗淨運轉，本子程式結束。　　[0060] 步驟S64中，限制控制部138，會與上述步驟S20（參照圖5）同樣地，判斷空氣調節機S的冷氣、暖氣、除濕或洗淨運轉是否停止，且，是否從停止時經過既定時間D3。若此處判斷為「No」的話，處理進行到步驟S66，限制控制部138，會與上述步驟S22（參照圖5）同樣地，判斷是否符合既定的開始條件。但是，本子程式中，在步驟S66判斷為「No」的情況，處理會回到步驟S64。以後，反覆進行步驟S64及S66的迴圈，但若經過既定時間D3的話，就在該時間點於步驟S64判斷為「Yes」。　　[0061] 在步驟S64或S66判斷為「Yes」的話，處理進行到步驟S68。以後的步驟S68～S72、S76～S82的處理，是與上述之定時中斷子程式（參照圖5）的步驟S24、S32、S34、S36～S42的處理相同。亦即，根據是否符合強洗淨開始條件（S68），來以強洗淨模式（S70）或弱洗淨模式（S72）開始洗淨運轉。之後，當洗淨運轉正常結束時（S76為「Yes」），自動洗淨計時器會歸零（S78），使本子程式的處理結束。另一方面，當熱交換器溫度未達既定溫度T2時（S80為「No」），在該時間點停止洗淨運轉（S82）。　　[0062] ［實施形態的效果］　　如以上所述，根據本實施形態，控制裝置（130），具有在既定條件發生時，限制洗淨運轉之實行的限制控制部（138），故可適當地限制洗淨熱交換器的洗淨運轉。　　且，限制控制部（138），是在過去實行過洗淨運轉之後，到製冷循環的動作時間抵達既定的第1動作時間（D1）為止，限制洗淨運轉（允許手動洗淨運轉，禁止自動洗淨運轉）。藉此，可適當控制洗淨運轉的間隔。　　且，控制裝置（130），進一步具備：探測對象室內人體或對象室內人體動作的人體探測部（131），限制控制部（138），是當人體探測部（131）檢測出人體或人體的既定動作時，限制洗淨運轉（允許手動洗淨運轉，禁止自動洗淨運轉）。藉此，可適當限制有人在空調室內之際的動作。　　[0063] 且，控制裝置（130），進一步具備：探測對象室內照度的照度探測部（162），限制控制部（138），是當照度未達既定值的話，限制洗淨運轉（允許手動洗淨運轉，禁止自動洗淨運轉）。藉此，可因應照度，適當限制洗淨運轉。　　且，控制裝置（130），進一步具備：探測對象室內室溫的室溫探測部（161）、以及因應所探測的室溫來使停止中的製冷循環動作的自動運轉部（135），限制控制部（138），是在自動運轉部（135）動作的情況下，限制洗淨運轉（允許手動洗淨運轉，在經過運轉間隔D2之前禁止自動洗淨運轉）。藉此，在自動運轉部的動作中可適當限制洗淨運轉。　　[0064] 且，控制裝置（130），進一步具備；探測室外溫度的外氣溫探測部（163），限制控制部（138），是當室外溫度成為第1既定溫度（T1）以下時，限制洗淨運轉（S16、S60：手動、自動的洗淨運轉均禁止）。藉此，可因應室外溫度，適當限制洗淨運轉。　　且，限制控制部（138），是當室外溫度為冰點以下時，限制洗淨運轉。藉此，可防止排水管的結冰所致之堵塞等。　　[0065] 且，控制裝置（130），進一步具備：探測熱交換器（102）之溫度的熱交換器溫度探測部（164），限制控制部（138），是在洗淨運轉的實行中，當熱交換器（102）的溫度成為未達第2既定溫度（T2）時，使洗淨運轉停止（S40、S42、S80、S82）。藉此，可因應熱交換器102的溫度，更佳適當限制洗淨運轉。　　且，限制控制部（138），在根據熱交換器（102）的溫度來停止洗淨運轉之後，到熱交換器（102）的溫度成為第2既定溫度（T2）以上為止，禁止洗淨運轉的再實行（S18、S62）。藉此，可因應熱交換器102的溫度，更佳適當限制洗淨運轉。　　[0066] 且，空氣調節機S，進一步具備：由使用者來操作的操作部（Re），控制裝置（130），是根據操作部（Re）的操作來實行洗淨運轉，限制控制部（138），具有禁止除了操作部（Re）之操作以外的原因之洗淨運轉的實行（S2：禁止自動洗淨運轉）的功能。藉此，可適當限制除了操作部（Re）之操作以外之原因的洗淨運轉。　　[0067] 且，控制裝置（130），作為洗淨運轉，是選擇強洗淨模式或是比強洗淨模式還要少消耗能量的弱洗淨模式之中的任一種洗淨模式，過去，在第2動作時間（D4）內選擇了強洗淨模式的情況，具有選擇弱洗淨模式的功能（S24）。藉此，可適當限制洗淨運轉，來降低電力消耗。　　且，限制控制部（138），是在暖氣運轉結束之後，到經過既定時間（D3）為止，限制洗淨運轉的實行（S20、S64），藉此可適當限制暖氣運轉結束之後的洗淨運轉。　　[0068] 且，控制裝置（130），進一步具有：探測附著在熱交換器（102）表面之髒污的髒污探測部（132），限制控制部（138），是所探測的髒污越少則第1動作時間（D1）越長（S26～S30）。藉此，可因應熱交換器（102）的髒污，適當限制洗淨運轉的間隔。　　且，限制控制部（138），在自動運轉部（135）動作的情況下，在過去實行過洗淨運轉之後，當製冷循環的動作時間到達比第1動作時間（D1）還長的第3動作時間（D2）時，容許洗淨運轉（S12）。藉此，即使是自動運轉部（135）的動作中，亦可適當限制洗淨運轉的間隔。　　[0069] 且，限制控制部（138），在因照度未達既定值而限制洗淨運轉之後，當照度成為既定值以上時，實行洗淨運轉（S8）。藉此，可因應照度，適當限制洗淨運轉。　　且，限制控制部（138），在因人體探測部（131）檢測出人體而限制洗淨運轉之後，當人體探測部（131）變得沒有檢測到人體時，實行洗淨運轉（S6）。藉此，可適當限制有人在空調室內之際的動作。　　[0070] 且，限制控制部（138），是在冷氣運轉或除濕運轉結束之後，若熱交換器（102）的温度為第3既定温度（T3）以上的話，馬上容許洗淨運轉的實行（S22、S66）。藉此，可因應熱交換器（102）的溫度，來適當限制洗淨運轉。且，限制控制部（138），是在冷氣運轉或除濕運轉結束之後，到經過既定時間（D3）為止，限制洗淨運轉的實行（S20、S64）。藉此，可適當限制冷氣運轉或除濕運轉結束之後的洗淨運轉。　　[0071] 且，限制控制部（138），是在洗淨運轉結束之後，到經過既定時間（D3）為止，限制洗淨運轉的實行（S20、S64）。藉此，可適當限制洗淨運轉結束後之下一次的洗淨運轉。且，限制控制部（138），只要熱交換器（102）的溫度未達第2既定溫度（T2）的話，限制洗淨運轉的實行（S18、S62）。藉此，可因應熱交換器（102）的溫度，適當限制洗淨運轉。　　[0072] 且，控制裝置（130），在實行洗淨運轉之際，將流通於熱交換器（102）之冷媒的蒸發溫度設定成露點溫度（T3）以下。藉此，可適當地使空氣中的水蒸氣結露。　　且，控制裝置（130），是使洗淨運轉之冷媒的蒸發溫度，比除濕運轉之冷媒的蒸發溫度還低。藉此，可更適當地使空氣中的水蒸氣結露。　　[0073] ［變形例］　　本發明並不限定於上述實施形態，可有各種變形。上述的實施形態為用來容易理解說明本發明而示例者，並不限定於一定要具備所說明之所有的構造。且，亦可在上述實施形態的構造追加其他構造，亦可將構造的一部分置換成其他構造。且，圖中所示的控制線或訊號線僅表示說明上的必要者，並不一定是表示產品上所必要之所有的控制線或訊號線。亦可認為實際上幾乎所有的構造為相互連接。對於上述實施形態之可能的變形，例如有以下所述者。　　[0074] （1）上述實施形態之主微控制器130B的硬體可藉由一般的電腦來實現，因此亦可將關於圖4～圖6所示之流程圖的程式等予以儲存於記憶媒體，或是透過傳送經路來發佈。　　[0075] （2）圖4～圖6所示的處理，在上述實施形態中雖說明為使用程式之軟體的處理，但亦可將其一部分或全部取代成使用ASIC(Application Specific Integrated Circuit；特定用途取向IC)，或是FPGA(field-programmable gate array)等之硬體的處理。　　[0076] （3）上述實施形態的定時中斷子程式（圖4）中，在步驟S10判斷為「No」的情況，亦即「安眠功能」為OFF狀態的情況下，實行步驟S12所示的處理。但是，在步驟S10判斷為「No」的情況下，亦可立即禁止自動洗淨運轉，使處理進行到步驟S26（參照圖5）。　　[0077] 且，上述實施形態的步驟S10中，是判斷是否「安眠功能為OFF狀態」，但亦可取代此，改成判斷是否「安眠功能為OFF狀態，或是調溫OFF狀態」。在此，所謂「調溫OFF狀態」，是指「室內機100的送風風扇103雖有驅動，但製冷循環停止」的狀態。藉此，即使是空氣調節機S在通常的（非安眠功能的）冷氣、暖氣或除濕運轉的連續實行中，只要產生調溫OFF狀態的話，在從上次的洗淨運轉經過了運轉間隔D2之際，成為可實行洗淨運轉的狀態（步驟S12）。此情況時，步驟S20的處理，是取代上述實施形態，改成判斷「冷氣、暖氣、除濕或洗淨運轉之製冷循環的運轉為停止，且，從停止時起算是否經過既定時間D3」即可。　　[0078] （4）且，上述實施形態中，在步驟S40、S42、S80、S82中使洗淨運轉停止的邊界溫度（第2既定溫度）、以及在步驟S18、S62中禁止洗淨運轉之再實行的邊界溫度（第3既定溫度），是相同的既定溫度T2。但是，第2既定溫度與第3既定溫度亦可為不同溫度。　　[0079] （5）上述實施形態之步驟S22及S66（參照圖5、圖6）的「開始條件」，為「冷氣運轉後，熱交換器溫度為露點溫度T3以上的情況」。但是，在期待熱交換器102等之穩定動作的情況時，若之前的運轉為「冷氣運轉」或「除濕運轉」的話，即使熱交換器溫度未達露點溫度T3，亦可當成符合「開始條件」。在此情況時，只要在「冷氣運轉」或「除濕運轉」停止之後的話，可馬上開始洗淨運轉。又，在「暖氣運轉」結束之後的情況，是與上述實施形態的情況相同，在經過既定時間D3之前，限制洗淨運轉的實行。這是因為，暖氣運轉結束後，熱交換器102的溫度變得較高，從該狀態開始冷卻熱交換器102的話，會花費時間，且能量損失會變大。　　[0080] （6）上述實施形態中，為了防止排水管（未圖示）的結冰所致的堵塞，只要外氣溫未達既定溫度T1（例如0℃）的話，使禁止自動/手動兩者的洗淨運轉（步驟S16、S60）。但是，在排水管安裝加熱器的話，即使外氣溫未達溫度T1亦可實行洗淨運轉。此情況時，在步驟S16或S60判斷為「No」的情況下，使加熱器成為ON狀態，並持續進行步驟S18以後或是S62以後的處理即可。　　[0081] （7）上述實施形態中，作為洗淨運轉雖適用有強洗淨模式及弱洗淨模式之2種類的動作模式，但洗淨運轉亦可只有強洗淨模式。[0008] [Structure of Embodiment] <Overall Structure of Air Conditioner> Fig. 1 is a schematic diagram of an air conditioner S according to an embodiment of the present invention. In Figure 1, The air conditioner S has: Indoor unit 100, Outdoor unit 200, Remote control Re. The indoor unit 100 and the outdoor unit 200 are connected by a refrigerant pipe (not shown). With the well-known refrigeration cycle, Let's air-condition the indoor space (henceforth the air-conditioning room) in which the indoor unit 100 was installed. And Indoor unit 100 and outdoor unit 200, Receive and transmit information to each other through communication cables (not shown). also, For outdoor unit 200, An outside temperature detecting section 163 is provided to detect outside temperature. [0009] The remote control Re is operated by the user, The infrared signal is sent to the remote control receiving and transmitting unit Q of the indoor unit 100. The content of the signal, Is the release operation, Change of set temperature, Setting of timer value, Change of operation mode, Give instructions to stop, etc. Air conditioner S, Is based on those signals, For heating operation, Air-conditioning operation, Dehumidification operation, Air-conditioning operation such as washing operation. And The remote control receiving and transmitting unit Q of the indoor unit 100, Is the room temperature information, Humidity information, Information such as electricity bill information is sent to the remote control Re, To inform users of this information. [0010] FIG. 2 is a side sectional view showing the position of the imaging unit 110 of the indoor unit 100. Chassis base 101, Is the heat exchanger 102, Supply fan 103, Internal structures such as the filter 108 are contained. The heat exchanger 102 includes a plurality of heat transfer tubes 102a. Heat transfer tube 102a, Is constituted as: The air sucked into the indoor unit 100 by the blower fan 103, Heat exchange with the refrigerant flowing through the heat transfer tube 102a, To heat or cool the air. also, Heat transfer tube 102a, Is connected to the refrigerant pipe (not shown), It forms a part of a well-known refrigeration cycle (not shown). [0011] By rotating the blower fan 103 shown in FIG. 2, Air is sucked through the air inlet 107 and the filter 108, The air that has undergone heat exchange in the heat exchanger 102 is guided to the blow-out air passage 109a. In addition, Is directed to the air blowing out of the air path 109a, The wind direction is adjusted by the left and right wind direction plates 104 and 105. The air is blown from the air outlet 109b to air-condition the air-conditioned room. [0012] Left and right wind direction boards 104, According to the instructions from the control device 130 (Fig. 3) described later, With the pivot shaft (not shown) provided at the lower part as the fulcrum, The left and right wind direction boards are rotated by a motor (not shown). Up and down wind direction board 105, According to the instructions from the control device 130 (Fig. 3) described later, With a pivot shaft (not shown) provided at both ends as a fulcrum, It is rotated by a motor (not shown) for the up-and-down wind direction board. With this, Air-conditioning wind can be blown to a desired position in an air-conditioned room. [0013] Before the indoor unit 100 is covered so as to cover the lower part of the front panel 106, The imaging unit 110 and the visible light blocking filter unit 117 are provided. The imaging unit 110 is applicable to a general camera. This type of camera, In order to reproduce the color seen by the human eye, it has a sensitivity centered on the wavelength of visible light. However, it also has a certain degree of sensitivity at ultraviolet and near-infrared wavelengths. Visible light blocking filter section 117, With optical filter, Attenuates light at visible wavelengths, Come especially to let the near-infrared wavelength pass. [0014] Shooting section 110, Is by changing the direction of the optical axis, Image data of the heat exchanger 102 can be obtained. Filter drive unit 116, It is necessary to insert the visible light blocking filter section 117 into the optical axis of the imaging section 110 as necessary. The installation position of the imaging section 110 or the visible light blocking filter section 117, etc. It can be changed according to the purpose of the acquired image, It is not limited to the position of FIG. 1. [0015] When the visible light blocking filter section 117 is placed on the optical axis of the imaging section 110 to photograph an air-conditioned room, You can obtain near-infrared brightness data, that is, near-infrared images. If you only take pictures of visible light in air-conditioned rooms, For example, the white part may be misjudged as being "brighter" than it actually is. In contrast, In near-infrared images, Can remove the color of each part of the air-conditioned room, The effect of the pattern. here, In this embodiment, Filter drive unit 116, It is necessary to insert the visible light blocking filter section 117 into the optical axis of the imaging section 110 as necessary. [0016] Again, When the daylight in the air-conditioned room is strong, The visible light blocking filter section 117 may be moved away from the optical axis of the imaging section 110. And You can also change the specifications of the optical filter, The visible light blocking filter unit 117 allows ultraviolet rays to pass through. Infrared projector 115, For example, a near-infrared diode, Irradiate the air-conditioned room with infrared rays. This is to use the brightness difference image before and after infrared irradiation. To detect the human body correctly. [0017] Shooting section 110, Is set from the installation position of the photographing unit 110 to the downward direction with respect to the horizontal direction, Instead, you can shoot properly in air-conditioned rooms. And Shooting section 110, Is to swing the optical axis left and right, This can detect a wide range of human bodies in the air-conditioned room. but, For the mounting position or angle of the detailed imaging section 110, It only needs to be set according to the specifications or application of the air conditioner S, It is not intended to limit the structure. also, figure 1, The structure of the air conditioner S shown in FIG. 2, This is only an example of this embodiment. The invention is of course not limited to the application of this embodiment. [0018] <Structure of Control Device> FIG. 3 is a block diagram of a control device 130 to which the air conditioner S of this embodiment is applied. In Figure 3, The control device 130 has: Camera microcontroller 130A, Main microcontroller 130B, Load driving unit 150, Environment detection section 160. And, The above-mentioned shooting section 110, have: Optical lens 111 for adjusting shooting range or focal length An imaging element 112 that converts the indoor light incident from the optical lens 111 into an electrical signal, A / D converter 113, which digitizes the signal of the imaging element 112 to convert it into image data, A digital signal processing unit 114 that corrects the brightness or hue of the image data. [0019] Here, When taking photos, Appropriate shooting parameters (shutter speed, shutter speed, White balance, Compared, (General correction to eliminate noise, etc.) is better. According to the sensitivity of the imaging section 110, By applying the visible light blocking filter section 117 (see FIG. 2), And can obtain image data suitable for human detection. [0020] and, Environment detection unit 160, have: Room temperature detection section 161, Illumination detection unit 162, Outside air temperature detecting section 163 for detecting outdoor temperature, A heat exchanger temperature detection unit 164 that detects the temperature of the heat exchanger 102 (see FIG. 2). here, Room temperature detection section 161, To detect the temperature in the air-conditioned room, Far-infrared sensors suitable for thermoelectric elements, etc. Accordingly, a room temperature in a range similar to the imaging range of the imaging unit 110 can be detected. And Illumination detection section 162, An illuminance sensor that detects the illuminance in an air-conditioned room. And Illumination detection section 162, It is also possible to measure the amount of sunlight irradiated into the air-conditioned room together with the illumination. And It can also replace the illuminance detection section 162, Instead, the illuminance is measured based on the imaging result of the imaging section 110. [0021] and, As shown in Figure 1, Outside temperature detection section 163, It detects the temperature of the place where the outdoor unit 200 is installed, that is, the air conditioner outdoor. Outside temperature detection section 163, Semiconductor temperature sensor with thermistor, etc. And Heat exchanger temperature detector 164, Semiconductor temperature sensor with thermistor, etc. As shown in Figure 2, Heat exchanger temperature detector 164, Is mounted on the upper end of the heat exchanger 102, The surface temperature of the heat exchanger 102 is detected. also, In the environment detection section 160, In addition to the above, If necessary, an activity detection sensor using a Fresnel lens and an infrared sensor, Or a variety of sensors such as humidity sensors. [0022] and, The camera microcontroller 130A has a memory section 140A, The main microcontroller 130B includes a memory unit 140B. and, Memory section 140A, 140B, Each has RAM (Random Access Memory, Unsigned) and ROM (Read Only Memory, Unsigned). And Camera microcontroller 130A and main microcontroller 130B, Hardware (such as a CPU (Central Processing Unit)) not shown The ROM stores a control program or various data executed by the CPU. Inside the camera microcontroller 130A and the main microcontroller 130B, Memory section 140A, Blocks other than 140B indicate functions realized by a control program or the like. [0023] That is, Camera microcontroller 130A, The image detection unit 139 is provided. and, The image detection section 139, have: Human detection section 131, Dirty detection section 132. And Main microcontroller 130B, have: Calculation processing unit 141, Automatic operation unit 135, Drive control unit 136, Time measurement unit 137, Restriction control unit 138. [0024] Control device 130, Can specify heating operation, Air-conditioning operation, Dehumidification operation, And any of the washing operations, Then, a refrigeration cycle (not shown) of the air conditioner S is operated. among them, Heating operation, Air-conditioning operation and dehumidification operation, It is the same as a well-known air conditioner. And The so-called washing operation, Dew condensation on the surface of the heat exchanger 102, The operation of cleaning the surface of the heat exchanger 102 with dew condensation water. During cleaning operation, Control device 130, Is the evaporation temperature of the refrigerant flowing through the heat exchanger 102, Set below the dew point temperature. And The evaporation temperature of the refrigerant in the cleaning operation, It is set to be lower than the evaporation temperature of the refrigerant in the dehumidification operation (preferably below the freezing point). [0025] Here, For washing operation, There are operation modes of "strong washing mode" and "weak washing mode". The so-called weak washing mode, The temperature of the heat exchanger 102 is set higher than that of the strong cleaning mode. This is an operation mode for suppressing energy consumption. In the strong wash mode, Control device 130, The surface of the heat exchanger 102 is cooled to less than 0 ° C. With this, The surface of the heat exchanger 102 may be frosted. after that, Control device 130, Is to heat the heat exchanger 102 to melt the frost, The surface of the heat exchanger 102 is washed with the generated water. on the other hand, In weak wash mode, The surface of the heat exchanger 102 may become 0 ° C or higher. [0026] and Main microcontroller 130B, Is receiving the transmission section Q through the remote control, Receive instructions from the user, Based on various environmental information provided by the environmental detection unit 160, Or from the remote control receiving the operation instruction of the transmitting section Q, Each section is controlled by the load driving section 150. Load driving unit 150, According to the instruction from the main microcontroller 130B, Thus driving: Refrigeration cycle (not shown), A fan motor (not shown) for the blower fan 103, Fan motors (not shown) for left and right wind direction plates 104, Fan motor (not shown) for the up-and-down wind direction plate 105, A compressor motor (not shown) and the like included in the outdoor unit 200. [0027] Camera microcontroller 130A and main microcontroller 130B, It is to exchange various action instructions with each other. especially, Camera microcontroller 130A, The detection result of the image detection unit 139 is supplied to the main microcontroller 130B. Main microcontroller 130B, Is for camera microcontroller 130A, Output shooting request signal. And The indoor image data obtained by the shooting unit 110, Is supplied to the image detection unit 139, The image detection unit 139 performs various image processes. First of all, Dirty detection section 132, This is to detect dirt attached to the surface of the heat exchanger 102. The "dirty" referred to here, Contains an oil film attached to the surface of the heat exchanger 102, Or both of the dust floating on the surface of the heat exchanger 102. [0028] And, Human detection section 131, Is based on the image data provided by the imaging section 110, Detect the number of people indoors, The location of people in each room, Indoor people's head, chest, hand, Position of feet, etc. Or the action of these parts. Human body detection section 131 and dirt detection section 132, It is also possible to detect parts of the human body or dirt based on image data of the same specifications provided by the imaging section 110. And To the human body detection section 131 and the dirt detection section 132, Each appropriate imaging parameter may be set in the digital signal processing section 114 of the imaging section 110. In this case, Human body detection section 131 and dirt detection section 132, Are the results of processing according to different signals, To perform parts of the human body, Or the detection of the contamination of the heat exchanger 102 is also possible. [0029] Detection results of the human body detection section 131 and the dirt detection section 132, This is the calculation processing unit 141 supplied to the main microcontroller 130B. Calculation processing unit 141, Is integrated control of the control device 130, For air-conditioning operation (heating operation, Air-conditioning operation, Dehumidification operation or washing operation), Setting the operation of each unit in the control device 130, Control drive control unit 136, etc. To implement air-conditioning operation. The above-mentioned shooting section 110, Is based on the shooting request signal from the calculation processing unit 141, Shooting room and heat exchanger 102. [0030] However, The detection result obtained by the image processing of the image detection unit 139, It can also include information such as the location or activity of people indoors, Distance information, etc. It does not contain visual material for visual images. With this, Can reduce memory 140A, The amount of data held by 140B, And becomes a structure in which image data is not taken outside the control device 130, Can realize the privacy protection of indoor people in air-conditioned rooms. [0031] included in the main microcontroller 130B, Or automatic operation section 135, Mainly implement the "sleep function". This is a feature that is suitable for use during particularly difficult nights. that is, The so-called sleeping function, The air conditioner S is often turned OFF, E.g, When the room temperature becomes more than a predetermined value, Automatically performs the function of weak air-conditioning operation. And Drive control unit 136, According to instructions from the calculation processing unit 141, etc. The load driving unit 150 is controlled. And Time measurement unit 137, Is the measurement start time of the operation of the air conditioner S, Operation continuation time, Various time information such as operation stop time. And Restriction control unit 138, It is necessary to restrict the cleaning operation performed by the calculation processing unit 141 as necessary. The details will be described later with the action. [0032] Control device 130, have: Camera substrate 122, Control substrate 124. A main microcontroller 130B is installed on the control substrate 124, A camera microcontroller 130A and an imaging unit 110 are mounted on the camera substrate 122. The imaging unit 110 and the camera microcontroller 130A mounted on the camera substrate 122, Is to perform various image processing, Therefore, more data must be processed. Tends to move at high speed. therefore, On the camera substrate 122, Although relatively expensive, However, it is better to use a multilayer substrate suitable for high-speed operation. on the other hand, To the main microcontroller 130B, Does not require much high-speed action, Therefore, a low-cost substrate can be applied to the control substrate 124. [0033] In this embodiment, Control device 130, Having a camera substrate 122 and a control substrate 124, Therefore, communication will occur between the two. but, The content of the communication between the two, For example, the detection results or various motion instructions caused by the human body detection section 131 and the dirt detection section 132, Therefore, the communication volume can be relatively small. therefore, Communication between the two, Serial communication with a small number of cables is preferred. As a result, It has a structure in which a circuit board provided in the control device 130 is divided into two pieces, a camera substrate 122 and a control substrate 124, The control device 130 can be configured inexpensively. [0034] [Operation of Embodiment] <Automatic Washing Operation> Next, The operation of this embodiment will be described. "Washing operation" mentioned above, There are, for example, an "automatic cleaning operation" that is performed automatically at predetermined intervals, There are also two types of "manual washing operation" that the user manually operates the remote control Re (operation part) to start. And user, You can specify in advance whether to allow automatic cleaning operation. In addition, user, Where automatic washing operation is allowed, You can specify whether or not to allow the automatic washing operation to be performed when a person is indoors. This is because, If cleaning operation is carried out, Room temperature and humidity will drop slightly, Therefore, there are also users who are uncomfortable with the automatic cleaning operation. [0035] FIG. 4 and FIG. 5, Is a flowchart of a timer interrupt subroutine executed in the control device 130, This subroutine is started with a predetermined interrupted period (for example, seconds or minutes). This subroutine, Mainly suitable for automatic cleaning operation. [0036] When the processing in FIG. 4 proceeds to step S2, Restriction control unit 138, It is determined whether the start of the automatic cleaning operation is permitted. here, When judged as "No", The restriction control unit 138 prohibits the automatic washing operation at this point in time. The operation in this case will be described later. on the other hand, If it is judged as "Yes" in step S2, The process proceeds to step S4, Restriction control unit 138, Will judge the last cleaning operation (automatic, Whether the operation time after the end of any of the manual operations) is greater than or equal to the predetermined operation interval D1 (the first operation time). The running interval D1, Is the interval at which the automatic cleaning operation can be performed, For example, the value may be about 10 hours to 1000 hours. [0037] If it is judged "No" here, The restriction control unit 138 prohibits the automatic washing operation at this point in time. on the other hand, When judged as "Yes", The process proceeds to step S6, Restriction control unit 138, Will judge whether "the automatic washing operation is allowed when people are indoors" or "there is no one in the air-conditioned room", Whether at least one of the conditions is met. In other words, Automatic washing operation is prohibited when people are indoors, When there is someone in the air-conditioned room, Will be judged as "No", The restriction control unit 138 prohibits the automatic washing operation at this point in time. [0038] On the other hand, If it is judged as "Yes" in step S6, The process proceeds to step S8, Restriction control unit 138, Is based on the detection result of the illumination detection unit 162, To determine whether the illuminance in the air-conditioned room is above a predetermined value. If it is judged "No" here, The restriction control unit 138 prohibits the automatic washing operation at this point in time. This is because, If the illumination does not reach the set value, The possibility of artificial sleeping indoors is high. on the other hand, If it is judged as "Yes" in step S10, The process proceeds to step S10, The restriction control unit 138 determines whether the "sleep function" is OFF. [0039] If the sleep function is ON, It is judged as "No" in step S10, The process proceeds to step S12. In step S12, Restriction control unit 138, It is determined whether the operation time after the end of the last cleaning operation has passed a predetermined operation interval D2 (the third operation time). here, The operation interval D2 is longer than the above-mentioned operation interval D1. For example, it may be a time approximately twice as long as the operation interval D1. If it is judged "No" here, The restriction control unit 138 prohibits the automatic washing operation at this point in time. on the other hand, If it is judged as "Yes" in either of steps S10 and S12, The process proceeds to step S14. [0040] Here, The significance of steps S10 and S12 will be described. First of all, When the sleep function is ON, The possibility of artificial sleeping indoors is high, Therefore, if it is determined as "No" in step S10, In principle, the restriction control unit 138 preferably prohibits the automatic washing operation. but, Whether you wake up or go to bed, Users who use the sleep function continuously without interruption also exist. In this case, If the automatic washing operation is immediately prohibited for the reason that the sleep function is ON, The automatic cleaning operation cannot be performed at any time. therefore, Restriction control unit 138, It is in step S12, It is determined whether an operation interval D2 longer than the normal operation interval D1 has elapsed since the last cleaning operation. that is, If it is judged as "Yes" in step S12, As long as other conditions are met, automatic cleaning operation is implemented. [0041] The human body detection unit 131 (refer to FIG. 3) of the camera microcontroller 130A, Is based on the location of people indoors, posture, Actions, etc. In the case of an indoor person turning over while sleeping, Detected the content, And notify the main microcontroller 130B. When the process of FIG. 4 proceeds to step S14, Restriction control unit 138, It will be judged whether or not a sleep rollover has been detected in the past predetermined time. It is judged as "No" in the case of detection of sleep overturn, The restriction control unit 138 prohibits the automatic washing operation at this point. This is because, In the event that a sleep rollover is detected, The possibility of artificial sleeping indoors is high. on the other hand, If it is judged as "Yes" in step S14, The process proceeds to step S16. [0042] In step S16, Restriction control unit 138, It is determined whether the outside air temperature detected by the outside air temperature detecting unit 163 (see FIG. 3) is equal to or higher than the predetermined temperature T1 (the first predetermined temperature). Here the temperature T1, For example, it may be set to 0 ° C. This is because, When the outside temperature is below freezing, that is, less than 0 ° C, Drain pipes (not shown) that drain dew condensation water to the outside can freeze and block. but, The user can also set the temperature T1 to a desired value of 0 ° C or higher. This is because, There is also a user who wants to "in order to avoid further cooling the room in a cooler time zone (for example, less than 5 ° C)". If it is judged as "No" in step S16, The restriction control unit 138 prohibits the automatic washing operation at this point. on the other hand, If it is judged as "Yes" in step S16, The process proceeds to step S18. [0043] In step S18, Restriction control unit 138, It is determined whether the heat exchanger temperature detected by the heat exchanger temperature detection unit 164 (see FIG. 3) is a predetermined temperature T2 (a second predetermined temperature, 3rd predetermined temperature) or more. Here, The temperature T2 is "if it is above this temperature, The temperature at which the refrigeration cycle and the heat exchanger 102 can be stably cleaned. " Given temperature T2, Is different depending on the structure of the refrigeration cycle or heat exchanger 102, However, it may be, for example, -30 ° C. If it is judged as "No" in step S18, The restriction control unit 138 prohibits the automatic washing operation at this point. on the other hand, If it is judged as "Yes" in step S18, The process proceeds to step S20 (refer to FIG. 5). [0044] In step S20, Restriction control unit 138, Will judge the cold air of air conditioner S, Heating, Whether dehumidification or washing operation is stopped, And Whether or not a predetermined time D3 has elapsed since the stop. This is because, If sufficient time (predetermined time D3) has not elapsed since the operation was stopped, The cleaning operation may be hindered by the influence of the previous operation. If judged "No" here, The process proceeds to step S22, The restriction control unit 138 determines whether the predetermined start condition is met. This is because, Even if the predetermined time D3 has not elapsed since the operation was stopped, In some cases, the cleaning operation can be started. [0045] The "starting conditions" here, For example, "After air-conditioning operation, When the heat exchanger temperature is above the dew point temperature T3 ". This situation, For example, it occurs after a weak air-conditioning operation with a set temperature of about 28 ° C. If it is judged as "No" in step S22, The restriction control unit 138 prohibits the automatic washing operation at this point. on the other hand, If either step S20 or S22 is judged as "Yes", The process proceeds to step S24. [0046] In step S24, Calculation processing unit 141, It will be judged whether the "strong washing start condition" is met. Here, The so-called strong wash start condition, Conditions for starting the cleaning operation in the strong cleaning mode. As mentioned above, The washing operation has operation modes of strong washing mode and weak washing mode. The energy consumption of the strong washing mode is greater than that of the weak washing mode. here, In this embodiment, Is the interactive selection of strong and weak washing modes, This is an attempt to suppress power consumption. Specifically, "The operation mode of the last cleaning operation is the weak cleaning mode", "The cleaning operation in the strong cleaning mode is not performed for more than the operation time D4 (second operation time)", It can be applied as the "strong washing start condition". This is because, If there is not much running time after the washing operation in the strong washing mode, It is considered that there is less dirt attached to the heat exchanger 102. [0047] If it is judged as "Yes" in step S24, The process proceeds to step S32, The calculation processing unit 141 starts the cleaning operation in the strong cleaning mode. on the other hand, If it is judged as "No" in step S24, The process proceeds to step S34, The calculation processing unit 141 starts the cleaning operation in the weak cleaning mode. then, When the process proceeds to step S36, Calculation processing unit 141, It is judged whether the washing operation is completed. If it is judged "No" here, The process proceeds to step S40. Here, As in step S18 described above, Restriction control unit 138, It is judged whether the heat exchanger temperature is above a predetermined temperature T2 (for example, -30 ° C). If it is judged "No" here, The process returns to step S36. [0048] After that, As long as the heat exchanger temperature is above the predetermined temperature T2, Then, the loop of steps S36 and S40 is repeatedly performed. During the cycle of this loop, Calculation processing unit 141, This is a process for continuous cleaning operation. E.g, When strong wash mode is selected, Calculation processing unit 141, Will cool the surface of the heat exchanger 102 to less than 0 ° C, And by staying in that state for a predetermined time, As a result, the surface of the heat exchanger 102 is frosted. after that, The frost is heated by the heat exchanger 102, The state above the predetermined temperature continues for a predetermined time. With this, Melt the frost, The surface of the heat exchanger 102 is washed with the generated water. [0049] At the end of the series of trips, Will be judged as "Yes" when the process proceeds to step S36, Instead, the process proceeds to step S38. In step S38, Calculation processing unit 141, The timer of the automatic washing timer (not shown) provided in the time measurement unit 137 (refer to FIG. 3) is reset to zero. And end the processing of this subroutine. here, The so-called automatic washing timer, The air conditioner S is air-conditioned, Timer for heating or dehumidifying operation. First of all, When describing steps S4 and S12, It explained the "operating time" of the air conditioner S, But the so-called "operation time", It means "counting result of automatic washing timer". [0050] and In this embodiment, For washing operation, Use the words "end" and "stop". here, The so-called "stop" It means not asking why, Stop cleaning operation. on the other hand, The so-called "end", It refers to the result of a series of cleaning processes. Thus, the washing operation is stopped. therefore, "End" is included in the concept of "stop." And When the washing operation is "finished", Calculation processing unit 141, The automatic washing timer will be reset to zero by step S38, In this regard, It can be distinguished from "stop" due to abnormalities. [0051] When the above-mentioned steps S36 and S40 are repeatedly performed, If the heat exchanger temperature does not reach the predetermined temperature T2 (for example, -30 ° C), It is judged as "No" in step S40, The process proceeds to step S42. here, Restriction control unit 138, Make the washing operation "stop", And end the processing of this subroutine. When the washing operation is stopped by this step S42, The above automatic washing timer will not be reset to zero. therefore, Make the timer interrupt subroutine (Figure 4, Figure 5) If you start again, At step S4, it is determined as "Yes" (the operation interval D1 has passed since the last washing operation). [0052] Moreover, When the process proceeds to step S18, As long as the heat exchanger temperature returns above the predetermined temperature T2, It is judged as "Yes". and, As long as the previous washing operation was stopped (i.e., At the time point when step S42 was performed) When the predetermined time D3 elapses, With the processing after step S24, The calculation processing unit 141 restarts the cleaning operation. [0053] As mentioned above, In steps S2 to S8, S12 ～ S18, If it is judged "No" at any of S22, The restriction control unit 138 prohibits the automatic washing operation at this time. In this case, The process proceeds to step S26 in FIG. 5, The calculation processing unit 141 determines whether or not the "dirty measurement conditions" are met. that is, In this embodiment, Calculation processing unit 141, It outputs a command to the camera microcontroller 130A every predetermined operating time. To detect the contamination of the heat exchanger 102. therefore, If a predetermined operating time elapses from the time when the previous command was output, It will meet the "dirty measurement conditions". [0054] If it is judged as "Yes" in step S26, Calculation processing unit 141, Dirt measurement will be performed. that is, Calculation processing unit 141, It is an operation instruction for performing a dirty measurement to the camera microcontroller 130A. Camera microcontroller 130A, Will respond to action instructions, The heat exchanger 102 is photographed by the photographing unit 110, And obtain the image data. then, Dirty detection section 132, Is based on the image data, To detect the degree of soiling of the heat exchanger 102. [0055] Next, When the process proceeds to step S30, Calculation processing unit 141, According to the detection result of the degree of soiling of the heat exchanger 102, To update the running interval D1 D2. that is, The greater the degree of soiling, Then make the running interval D1, The shorter D2, The heat exchanger 102 is frequently washed. With the above, To end the processing of this subroutine. [0056] As mentioned above, In step S6, If the automatic washing operation is prohibited when people are indoors, As long as an indoor person is detected, the automatic cleaning operation at this time point is prohibited. but, If the indoor person leaves the room until the next scheduled interruption, Automatic cleaning operation can be implemented. here, Timer interrupt subroutine (Figure 4, Figure 5), Start with a relatively short timed interrupt period (for example, seconds or minutes), Therefore, the operation of this embodiment, It can be said that "after the human body detection unit 131 detects a human body and the automatic washing operation is restricted, If the human body detection unit 131 cannot detect a human body, Just perform the automatic cleaning operation. " [0057] Similarly, In step S8, If the illuminance in the air-conditioned room does not reach the set value, The automatic washing operation at this time point is prohibited. but, If the illuminance becomes more than a predetermined value until the next timer interruption, Automatic cleaning operation can be implemented. therefore, The operation of this embodiment, It can be considered that "after the automatic cleaning operation was restricted because the illuminance detected by the illuminance detection unit 162 did not reach a predetermined value, If the illuminance is above a predetermined value, Just perform the automatic cleaning operation. " [0058] <Manual Washing Operation> FIG. 6 is a flowchart of a manual washing operation subroutine executed by the control device 130. This subroutine, Is in the remote control Re It is started when the user performs a predetermined operation instructing a manual cleaning operation. 时 When the process of FIG. 6 proceeds to step S60, Restriction control unit 138, Similarly to the above-mentioned step S16 (refer to FIG. 4), Determine whether the outside air temperature is above the predetermined temperature T1. If it is judged as "Yes" here, The process proceeds to step S62. [0059] In step S62, Restriction control unit 138, It is the same as the above-mentioned step S18 (refer FIG. 4), It is determined whether the heat exchanger temperature is equal to or higher than a predetermined temperature T2. If it is judged as "Yes" here, The process proceeds to step S64. on the other hand, If it is judged as "No" in step S60 or S62, The restriction control unit 138 prohibits the automatic washing operation at this point, This subroutine ends. [0060] In step S64, Restriction control unit 138, Similarly to the above-mentioned step S20 (refer to FIG. 5), Judging the cold air of the air conditioner S, Heating, Whether dehumidification or washing operation is stopped, And Whether or not a predetermined time D3 has elapsed since the stop. If it is judged "No" here, The process proceeds to step S66, Restriction control unit 138, Similarly to the above-mentioned step S22 (refer to FIG. 5), Determine whether it meets the established starting conditions. but, In this subroutine, If it is determined as "No" in step S66, Processing returns to step S64. after, Repeat the loop of steps S64 and S66, But if the given time D3 elapses, At this point in time, it is determined as "Yes" at step S64. [0061] If it is judged as "Yes" in step S64 or S66, The process proceeds to step S68. Subsequent steps S68 to S72, Processing of S76 to S82, It is the same as step S24 of the timer interrupt subroutine (refer to FIG. 5), S32, S34, The processing from S36 to S42 is the same. that is, According to whether the strong washing start condition is met (S68), Start the cleaning operation in the strong cleaning mode (S70) or the weak cleaning mode (S72). after that, When the washing operation is completed normally (S76 is "Yes"), The automatic washing timer will be reset to zero (S78), End the processing of this subroutine. on the other hand, When the heat exchanger temperature does not reach the predetermined temperature T2 (S80 is "No"), At this point, the washing operation is stopped (S82). [0062] [Effects of Embodiment] As described above, According to this embodiment, Control device (130), With the given conditions, Restriction control unit (138) which restricts the execution of cleaning operation, Therefore, the washing operation of the washing heat exchanger can be appropriately restricted. And, Restriction control unit (138), After washing operation was performed in the past, Until the operation time of the refrigeration cycle reaches the predetermined first operation time (D1), Restricted washing operation (allows manual washing operation, Prohibition of automatic washing operation). With this, The interval between washing operations can be appropriately controlled. And, Control device (130), Further: A human body detection unit (131) that detects a human body in a subject room or human body motion in the subject room, Restriction control unit (138), When the human body detection unit (131) detects a human body or a predetermined movement of the human body, Restricted washing operation (allows manual washing operation, Prohibition of automatic washing operation). With this, It is possible to appropriately restrict the movement of someone in an air-conditioned room. [0063] and, Control device (130), Further: The illuminance detection unit (162) for detecting the indoor illuminance of an object, Restriction control unit (138), When the illuminance does not reach a predetermined value, Restricted washing operation (allows manual washing operation, Prohibition of automatic washing operation). With this, Can respond to illumination, Properly restrict washing operation. And, Control device (130), Further: Room temperature detection section (161) of room temperature to be detected, And an automatic operation unit (135) that operates a refrigerating cycle in response to the detected room temperature, Restriction control unit (138), When the automatic operation unit (135) operates, Restricted washing operation (allows manual washing operation, (Automatic washing operation is prohibited until the running interval D2 has elapsed). With this, The operation of the automatic operation section can appropriately limit the cleaning operation. [0064] and, Control device (130), Have further The outdoor temperature detection unit (163) that detects the outdoor temperature, Restriction control unit (138), When the outdoor temperature becomes lower than the first predetermined temperature (T1), Restricted washing operation (S16, S60: Manual, Automatic washing operation is prohibited). With this, Can respond to outdoor temperature, Properly restrict washing operation. And, Restriction control unit (138), Is when the outdoor temperature is below freezing, Limit cleaning operation. With this, It can prevent clogging caused by freezing of the drainage pipe. [0065] and, Control device (130), Further: A heat exchanger temperature detector (164) that detects the temperature of the heat exchanger (102), Restriction control unit (138), Is in the execution of the cleaning operation, When the temperature of the heat exchanger (102) has not reached the second predetermined temperature (T2), Stop the washing operation (S40, S42, S80, S82). With this, Depending on the temperature of the heat exchanger 102, It is better to appropriately limit the washing operation. And, Restriction control unit (138), After stopping the washing operation according to the temperature of the heat exchanger (102), Until the temperature of the heat exchanger (102) becomes equal to or higher than the second predetermined temperature (T2), Re-enforcement of washing operation is prohibited (S18, S62). With this, Depending on the temperature of the heat exchanger 102, It is better to appropriately limit the washing operation. [0066] Air conditioner S, Further: Operation part (Re) operated by the user, Control device (130), The cleaning operation is performed according to the operation of the operation unit (Re). Restriction control unit (138), Execution of cleaning operation for reasons other than the operation of the operation section (Re) (S2: Automatic washing operation is prohibited). With this, It is possible to appropriately restrict the washing operation for reasons other than the operation of the operation section (Re). [0067] and, Control device (130), As a washing operation, Choose one of the strong washing mode or the weak washing mode that consumes less energy than the strong washing mode. past, When the strong cleaning mode is selected in the second operation time (D4), It has a function of selecting a weak washing mode (S24). With this, Can properly limit washing operation, To reduce power consumption. And, Restriction control unit (138), After the heating operation is over, Until the predetermined time (D3) elapses, Restrictions on the execution of washing operations (S20, S64), This can appropriately limit the washing operation after the heating operation is completed. [0068] and, Control device (130), Further has: A dirt detection section (132) that detects dirt attached to the surface of the heat exchanger (102), Restriction control unit (138), The less the detected dirt, the longer the first operation time (D1) (S26 to S30). With this, Corresponds to the dirty of the heat exchanger (102), Properly limit the interval between washing operations. And, Restriction control unit (138), When the automatic operation unit (135) operates, After the cleaning operation was performed in the past, When the operation time of the refrigeration cycle reaches a third operation time (D2) longer than the first operation time (D1), Allow washing operation (S12). With this, Even during the operation of the automatic operation unit (135), The interval between washing operations can also be appropriately limited. [0069] Restriction control unit (138), After the washing operation was restricted because the illuminance did not reach a predetermined value, When the illuminance becomes more than a predetermined value, The washing operation is performed (S8). With this, Can respond to illumination, Properly restrict washing operation. And, Restriction control unit (138), After the human body detection unit (131) detects a human body, the washing operation is restricted. When the human body detection unit (131) becomes unable to detect a human body, The washing operation is performed (S6). With this, It is possible to appropriately restrict the movement of someone in an air-conditioned room. [0070] Restriction control unit (138), After the air-conditioning operation or dehumidification operation is completed, If the temperature of the heat exchanger (102) is equal to or higher than the third predetermined temperature (T3), Immediately allow the execution of the washing operation (S22, S66). With this, Depending on the temperature of the heat exchanger (102), To properly limit the washing operation. And Restriction control unit (138), After the air-conditioning operation or dehumidification operation is completed, Until the predetermined time (D3) elapses, Restrictions on the execution of washing operations (S20, S64). With this, The air-conditioning operation or the washing operation after the dehumidification operation is appropriately restricted can be appropriately restricted. [0071] and Restriction control unit (138), After the cleaning operation is completed, Until the predetermined time (D3) elapses, Restrictions on the execution of washing operations (S20, S64). With this, The next cleaning operation after the end of the cleaning operation can be appropriately restricted. And Restriction control unit (138), As long as the temperature of the heat exchanger (102) does not reach the second predetermined temperature (T2), Restrictions on the execution of washing operations (S18, S62). With this, Depending on the temperature of the heat exchanger (102), Properly restrict washing operation. [0072] and Control device (130), During the cleaning operation, The evaporation temperature of the refrigerant flowing through the heat exchanger (102) is set to be lower than the dew point temperature (T3). With this, Condensation of water vapor in the air can be made appropriately. And, Control device (130), Is the evaporation temperature of the refrigerant in the cleaning operation, It is lower than the evaporation temperature of the refrigerant in dehumidification operation. With this, Water vapor in the air can be condensed more appropriately. [0073] [Modifications] The present invention is not limited to the above embodiments, Can have various deformations. The above embodiment is exemplified for easy understanding of the present invention, It is not limited to having all the structures described. And You may add another structure to the structure of the said embodiment, A part of the structure may be replaced with another structure. And The control or signal lines shown in the figure are only necessary for explanation. It does not necessarily mean all the control or signal lines necessary for the product. It can also be considered that practically all structures are connected to each other. With regard to possible variations of the above embodiment, For example, there are the following. [0074] (1) The hardware of the main microcontroller 130B of the above embodiment can be realized by a general computer. Therefore, the programs and the like regarding the flowcharts shown in FIGS. 4 to 6 can also be stored in a storage medium. Or publish it via teleport. [0075] (2) The processing shown in FIG. 4 to FIG. 6, In the above-mentioned embodiment, although the process is described as software using a program, However, it is also possible to replace a part or all of them with an ASIC (Application Specific Integrated Circuit; Specific-use orientation IC), Or FPGA (field-programmable gate array) and other hardware processing. [0076] (3) In the timer interrupt subroutine (FIG. 4) of the above embodiment, When it is determined as "No" in step S10, That is, when the "sleep function" is OFF, The processing shown in step S12 is performed. but, When it is determined as "No" in step S10, Can also immediately prohibit automatic cleaning operation, The process proceeds to step S26 (see FIG. 5). [0077] In step S10 of the above embodiment, It is judged whether the "sleeping function is OFF", But it can also replace this, Change to determine whether "the sleep function is OFF, Or the temperature is OFF. " here, The so-called "temperature adjustment OFF state", It means "Although the ventilation fan 103 of the indoor unit 100 is driven, But the refrigeration cycle is stopped. With this, Even when the air conditioner S is in the normal (non-sleeping) air conditioner, Continuous operation of heating or dehumidifying operation, As long as the temperature OFF state is generated, When the operation interval D2 has passed from the previous cleaning operation, The washing operation is enabled (step S12). In this case, The process of step S20, Instead of the above embodiment, Change to judge "air-conditioning, Heating, The operation of the refrigeration cycle of the dehumidifying or washing operation is stopped, And Calculate whether the predetermined time D3 has elapsed since the stop. [0078] (4) and, In the above embodiment, In step S40, S42, S80, Boundary temperature (second predetermined temperature) at which the cleaning operation is stopped in S82, And in step S18, The boundary temperature (the third predetermined temperature) for which re-execution of the cleaning operation is prohibited in S62, Is the same given temperature T2. but, The second predetermined temperature and the third predetermined temperature may be different temperatures. [0079] (5) Steps S22 and S66 of the above embodiment (refer to FIG. 5, Figure 6) "Starting conditions", "After air-conditioning operation, When the heat exchanger temperature is above the dew point temperature T3 ". but, When a stable operation of the heat exchanger 102 or the like is expected, If the previous operation was "air-conditioning operation" or "dehumidification operation", Even if the heat exchanger temperature does not reach the dew point temperature T3, It can also be regarded as meeting the "starting conditions". In this case, As long as the "air-conditioning operation" or "dehumidification operation" is stopped, Washing operation can start immediately. also, After the "heating operation" ends, Is the same as in the above embodiment, Before the given time D3 elapses, Restrict the implementation of washing operation. This is because, After the heating operation is over, The temperature of the heat exchanger 102 becomes higher, When the heat exchanger 102 is cooled from this state, Will take time, And the energy loss will increase. (6) In the above embodiment, In order to prevent clogging caused by freezing of the drain pipe (not shown), As long as the outside air temperature does not reach a predetermined temperature T1 (for example, 0 ° C), Deactivate both automatic and manual cleaning operations (step S16, S60). but, When installing a heater in a drain pipe, Even if the outside air temperature does not reach the temperature T1, the cleaning operation can be performed. In this case, When it is determined as "No" in step S16 or S60, Turn the heater on The processing after step S18 or after step S62 may be continued. [0081] (7) In the above embodiment, As the cleaning operation, although two types of operation modes, strong cleaning mode and weak cleaning mode, are applicable, However, the washing operation may be performed only in the strong washing mode.

[0082] 102：熱交換器 130：控制裝置 131：人體探測部 132：髒污探測部 135：自動運轉部 138：限制控制部 161：室溫探測部 162：照度探測部 163：外氣溫探測部 164：熱交換器溫度探測部 D1：運轉間隔（第1動作時間） D2：運轉間隔（第3動作時間） D3：既定時間 D4：動作時間（第2動作時間） Re：遙控器（操作部） S：空氣調節機 T1：溫度（第1既定溫度） T2：溫度（第2既定溫度、第3既定溫度） T3：露點溫度[0082] 102: heat exchanger 130: control device 131: human body detection section 132: dirty detection section 135: automatic operation section 138: restriction control section 161: room temperature detection section 162: illuminance detection section 163: outside temperature detection section 164: Heat exchanger temperature detection unit D1: Operating interval (first operating time) D2: Operating interval (third operating time) D3: Predetermined time D4: Operating time (second operating time) Re: Remote control (operation unit) S: Air conditioner T1: Temperature (first predetermined temperature) T2: Temperature (second predetermined temperature, third predetermined temperature) T3: Dew point temperature

圖1為本發明之一實施形態之空氣調節機的示意圖。 FIG. 1 is a schematic diagram of an air conditioner according to an embodiment of the present invention.

圖2為室內機之主要部的側剖面圖。 Fig. 2 is a side sectional view of a main part of the indoor unit.

圖3為空氣調節機所適用之控制裝置的方塊圖。 Fig. 3 is a block diagram of a control device applicable to the air conditioner.

圖4為定時中斷子程式的流程圖(1/2)。 Figure 4 is a flowchart (1/2) of the timer interrupt subroutine.

圖5為定時中斷子程式的流程圖(2/2)。 Fig. 5 is a flowchart (2/2) of the timer interrupt subroutine.

圖6為手動洗淨運轉子程式的流程圖。 FIG. 6 is a flowchart of a manual washing operation subroutine.

Claims

An air conditioner is characterized by having a refrigeration cycle having an indoor heat exchanger that cools or heats air in an air-conditioned room, and a control device that controls the refrigeration cycle to perform cleaning of the surface of the indoor heat exchanger. In the cleaning operation, the control device includes a restriction control unit that restricts the execution of the cleaning operation when a predetermined condition occurs; an outside temperature detection unit that detects the outdoor temperature; and the control device circulates the cleaning operation in the The evaporation temperature of the refrigerant in the indoor heat exchanger is set to be below freezing point, and the restriction control unit restricts the washing operation when the outdoor temperature is lower than a first predetermined temperature at which drainage from the indoor heat exchanger may freeze. .

The air conditioner according to claim 1, wherein the restriction control unit restricts the washing operation until the operation time of the refrigeration cycle reaches a predetermined first operation time after performing the washing operation in the past. .

The air conditioner according to claim 1, wherein the control device further includes a human body detection unit that detects a human body in the subject room or the movement of the human body in the subject room, and the restriction control unit is in the human body detection unit. When the human body or the predetermined movement of the human body is detected, the washing operation is restricted.

The air conditioner according to claim 1, wherein the control device further includes an illuminance detection unit that detects the illuminance in the target room, and the restriction control unit restricts the cleaning operation when the illuminance does not reach a predetermined value.

The air conditioner according to claim 2, wherein the control device further includes a room temperature detection unit that detects a room temperature in the target room, and an automatic operation for stopping the refrigeration cycle operation in response to the detected room temperature. The operation unit, the restriction control unit, restricts the cleaning operation when the automatic operation unit operates.

The air conditioner according to claim 1, wherein the restriction control unit restricts the cleaning operation when the outdoor temperature is below a freezing point.

The air conditioner according to claim 1, wherein the control device further includes an indoor heat exchanger temperature detection unit that detects the temperature of the indoor heat exchanger, and the restriction control unit is in the execution of the cleaning operation, When the temperature of the heat exchanger does not reach the second predetermined temperature, the cleaning operation is stopped.

The air conditioner according to claim 7, wherein the restriction control unit stops the washing operation based on the temperature of the indoor heat exchanger, and then the temperature of the indoor heat exchanger reaches a third predetermined temperature or more Until now, re-execution of the aforementioned washing operation is prohibited.

The air conditioner according to claim 1, further comprising an operation unit operated by a user, wherein the control device performs the cleaning operation based on the operation of the operation unit, and the restriction control unit has a prohibition except The function of the aforementioned washing operation for reasons other than the operation of the aforementioned operating section.

The air conditioner according to claim 1, wherein the control device, as the washing operation, selects a strong washing mode or a weak washing mode that consumes less energy than the strong washing mode. Any of the washing modes has a function of selecting the weak washing mode when the strong washing mode is selected in the second operation time.

The air conditioner according to claim 1, wherein the restriction control unit restricts the execution of the washing operation until a predetermined time elapses after the heating operation is completed.

The air conditioner according to claim 10, wherein the restriction control unit allows the cleaning operation to be performed after the air-conditioning operation or the dehumidification operation is completed.

The air conditioner according to claim 5, wherein the restriction control unit, when the automatic operation unit operates, has performed the washing operation in the past, and when the operation time of the refrigeration cycle reaches In the third operation time when the operation time is long, the aforementioned cleaning operation is allowed.

The air conditioner according to claim 4, wherein the restriction control unit performs the washing operation after the washing operation is restricted because the illumination does not reach the predetermined value, and when the illumination becomes the predetermined value or more .

The air conditioner according to claim 3, wherein the restriction control unit restricts the washing operation after the human body detection unit detects the human body, and when the human body detection unit does not detect the human body, The aforementioned washing operation is performed.

The air conditioner according to claim 11, wherein the restriction control unit restricts the execution of the washing operation until the predetermined time elapses after the air-conditioning operation or the dehumidification operation is completed.

The air conditioner according to claim 16, wherein the restriction control unit restricts execution of the washing operation after the predetermined time has elapsed after the washing operation is completed.

The air conditioner according to claim 1, wherein when the control device performs the cleaning operation, the evaporation temperature of the refrigerant is set to a dew point or lower.

The air conditioner according to claim 18, wherein the control device lowers an evaporation temperature of the refrigerant in the cleaning operation to a temperature lower than an evaporation temperature of the refrigerant in the dehumidification operation.