201139958 六、發明說明： 【發明戶斤屬之技術領域3 發明領域 本發明係有關於庫内設置有照明裝置的冰箱。201139958 VI. Description of the Invention: [Technical Field of Invention] 3 Field of the Invention The present invention relates to a refrigerator in which a lighting device is provided in a library.
L 發明背景 近年，已提出一種因發熱性較低、不會產生紅外線波 長的光、並可以低電壓驅動等理由，使用半導體發光元件 作為設置於冰箱内之照明裝置，以取代迄今之白熱燈管或 燈泡的冰箱。 迄今之利用發光二極體（半導體發光元件）作為照明裝 置的冰箱係如將複數之發光二極體配置成正方形，並設置 於冷藏庫内天花板而照射庫内者（例如，參照專利文獻1)。 在上述習知冰箱中，首先，冰箱門關閉時，不會進行 對發光二極體的通電，因此光不會照射於冰箱内。又，當 冰箱門開啟時，以機械式開關或霍爾積體電路等電子式開 關判斷為開門狀態，使順向電流流通於發光二極體，使之 發出白色光而照射冰箱庫内。 先行技術文獻 專利文獻 專利文獻1 :特開2001-82869號公報 【發明内容】 發明概要 發明欲解決之課題 201139958 然而’上述習知冰箱係藉由冰箱門每次開關而重複照 明裝置的點亮、熄滅。特別是照明裝置的光源為發光二極 體時，因其具指向性，會反光於冰箱内的收納物，而使利 用者感到刺眼，又，若發光二極體的照射方向向著利用者 側時，光容易進入使用者眼中；特別是夜晚屋内照明為關 閉狀態下開啟冰箱門時，若一 口氣馬上點亮照明裝置之發 光一極體，則容易陷入刺眼反而無法看清冰箱内的收納物 的狀況。 因此，利用者無法確實地取出所須的收納物、或者無 法確實地放置至收納位置，會使冰箱門長時間呈現非必要 的開啟狀態。因此，即使使用省能源的發光二極體作為照 明，也會使外部侵入冰箱内的熱能增加、導致冷卻效率降 低而有增加消費電力的課題。 本發明係解決上述習知課題者，目的在於提供一種冰 箱，係具有可照亮貯藏室内之照明裝置者，可減輕利用者 的視覺負擔’減少因刺眼或反光而增加之不必要的門開啟 狀態時間，而可抑制冰箱全體之消費電力量增加者。 用以欲解決課題之手段 為了解決上述習知課題，本發明之一態樣之冰箱，係 具有··前面具有開口部的貯藏室、可自由開閉地關閉前述 開口部的門、及以發光元件作為光源照亮前述貯藏室内的 照明裝置者，並具備有門開閉檢測部，係可檢 的開啟狀態及關閉狀態者；及控制裝置，係當前述門開閉 檢測部檢測出前述門的開啟狀態時，使前述照明裝置反覆 201139958 點亮與熄滅，使時間經過越久、前述照明裝置的點亮期間 越長者。 藉此，對於具有照亮貯藏室内之照明裝置的冰箱，使 照明裝置不一下子點亮，反覆進行點亮與熄滅而漸漸點 亮。藉此，可減輕利用者的視覺負擔，減少因刺眼或反光 而導致之不必要的冰箱門開放時間，而可抑制冰箱全體的 消費電力量增加。 發明效果 根據本發明之具有照亮貯藏室内之照明裝置的冰箱， 可使照明裝置不一下子點亮，反覆進行點亮與熄滅而漸漸 點亮。藉此，可減輕利用者的視覺負擔，減少因刺眼或反 光而導致之不必要的冰箱門開放時間，而可抑制冰箱全體 的消費電力量增加。 圖式簡單說明 第1圖係實施型態1的冰箱截面圖。 第2圖係實施型態1之照明裝置的要部縱截面圖。 第3圖係顯示實施型態1之控制裝置機能構成的方塊圖。 第4圖係顯示實施型態1之控制裝置動作之一例的流程圖。 第5圖係顯示實施型態1之控制裝置動作之一例的時間圖。 第6圖係顯示實施型態2之控制裝置動作之一例的流程圖。 第7圖係顯示實施型態2之控制裝置動作之一例的時間圖。 第8圖係實施型態3將發光二極體配置於内面壁之冰箱 的要部縱截面圖。 第9圖係實施型態3將發光二極體配置於天花板壁之冰 201139958 箱的要部縱截面圖。 第1〇圖係實施型態3將發光二極體配置於側面壁之冰 箱的要部橫截面圖。 I：實施方式】 用以實施發明之最佳形態 第1發明之冰箱，係具有：前面具有開口部的貯藏室、 可自由開閉地關閉前述開口部的門、及以發光元件作為光 源照亮前述貯藏室内的照明裝置者，並具備有門開閉檢測 部，係可檢測出前述門的開啟狀態及關狀態者；及控制 裝置’係當前述門開閉檢測部檢測出前述門的開啟狀態 時’使前賴明裝置反覆點亮與熄滅，使時間經過越久: 前述照明襞置的點亮期間越長者。 根據上述發明，具有可照亮貯藏室内之照明裝置的冰 知中’反覆使照明裝置點亮與熄滅，以使時間經過越久、 照明裝置點亮的期間越長。藉此，不會—σ氣點亮照明裝 置而可慢慢地點亮，可減輕湘者的視覺負擔，減少因刺 眼或反光而導致之不必要的冰箱Η職狀態，而可抑制冰 箱全體的消費電力量增加。 又，第2發明之冰箱，特別是在第1發明中，前述控制 裝置使前述照明裝置反覆點亮與熄滅，使相經過越久、 電流流通於前述照明裝置之期間的ON期間相對於電流未 流通於前述照明裝置之期間的QFF期間的比例越大。 藉此’使照明裝置反覆點亮與熄滅，使時間經過越久、 電流之ON#月間相對於〇FF期間的比例越大。料，藉由控 201139958 制電流流通於照明裝置的期間，可以不-口氣點亮照明裝 置而可慢慢地點亮。藉此可減輕利用者的視覺負擔，減少 因刺眼或反光而導致之不必要的冰箱Η開放狀態，而可抑 制冰箱全體的消費電力量增加。 又，第3發明之冰箱，特別是在第丨或第2發明中，前述 控制裝置在前述門開閉檢測部檢測出前述門的開啟狀態後 預疋之第-期間之間，使前述照明裝置持續媳、滅狀態，並 在前述第一期間經過後，使前述照明裝置反覆點亮與熄滅。 藉此，在檢測出門的開啟狀態後預定期間之間，使照 明裝置持續熄滅狀態’然後使照明裝置反覆點亮與媳滅。 亦即’開Π時’使彻者所見之冰箱内之亮度為與冰箱外 周圍之7C度同樣或其以下的狀態。藉此，由於可減輕利用 者的視覺負擔並慢慢地變亮，故可更減少因照明裝置所造 成之利用者視覺負擔，而可抑制冰箱全體的消費電力量增加。 又，第4發明之冰箱，特別是在第3發明中，前述控制 装·置在别述第一期間之間，使電流不流通於前述照明裝置 而持續炮滅狀態，並在前述第—期間經過後，控制流通於 前述照明裝置的電流而使前述照明裝置反覆點亮與媳滅。 藉此，在使電流不流通於照明裝置而持續熄滅狀態 後，控制流通於照明裝置的電流而使照明裝置反覆點亮與 熄滅。亦即，藉由控制流通於照明裝置之電流，開門時， 使利用者所見之冰箱内之亮度為與冰箱外周圍之亮度同樣 或其以下的狀態。藉此，由於可減輕利用者的視覺負擔並 慢慢地變亮，故可更減少因照明裝置所造成之利用者視覺 201139958 負擔，而可抑制冰箱全體的消f電力量增加。 又，第5發明之冰箱，特別是在第1〜第4發明中，前述 控制裝置使前述照明褒置反覆點亮與媳滅後，使前述昭明 裝置持續點亮狀態。又，第6發明之冰箱，特別是在第掩 明中，前述控制裝置在第二期間之間，藉由控制流通於前 述照明裝置之電流而使前述照明裝置反覆點亮與媳滅後， 持續使電流流通於前述照明裝置而持續點亮狀態。 藉此’藉由控制流通於照明纟置之電流而使照明裂置 反覆點亮與熄滅後，持續使電流流通於照明裝置而持續點 亮狀態。藉此，由於可防止照明急速變亮、而是在慢慢變 亮之後持續點亮’故可更減少因照明裝置所造成之利用者 視覺負擔，而可抑制冰箱全體的消費電力量增加。 又，第7發明之冰箱，特別是在第丨〜第6發明中，前述 控制裝置使點亮期間為第一點亮期間而使前述照明裝置反 覆點亮與熄滅後，更使點亮期間為長於第一點亮期間的第 二點亮期間而反覆進行點亮與熄滅。又，第8發明之冰箱， 特別是在第7發明中，前述控制裝置藉由pwM控制，決定 電流流通於前述照明裝置之期間的〇N期間、與電流未流通 於前述照明裝置之期間的〇 F F期間之比率的能率比及週 期，當前述週期重覆事先預定好之次數後，變化前述能率 比，使前述ON期間的比率變大並使前述週期重覆前述次 數’藉此使前述照明裝置反覆點亮與熄滅。 藉此，使照明裝置在同一點亮期間反覆點亮與熄滅 後’增長點亮期間，在該點亮期間反覆點亮與熄滅。具體 8 201139958 而言’藉由PWM(Pulse Width Modulation :脈衝寬度調變） 控制’變化能率比而使電流之ON期間的比率變大，來使照 明裝置反覆點亮與熄滅。藉此，由於可階段性更流暢地增 加明亮度而進行點亮控制，故可減輕利用者的視覺負擔， 減少因刺眼或反光而導致之不必要的冰箱門開放狀態，而 可抑制冰箱全體的消費電力量增加。 以下’參照圖示說明本發明之實施型態。與習知例或 已說明之實施型態為同樣構造者，附加同樣符號，並省略 詳細說明。另外，本發明並非限定於本實施型態者。 (實施型態1) 以下，根據第1圖至第4圖，說明本發明之實施型態1。 第1圖係本發明實施型態1之冰箱1〇〇的截面圖。 如同圖所示’冰箱100中，形成有前面具有開口部的複 數貯藏室：冷凍室11或冷藏室13。冷藏室13係藉由冷藏室 門25而可自由開閉地關閉前面的開口部。又，冰箱1〇〇具有 照明裝置20、溫度檢測部22、門開閉檢測部24及控制裝置26。 照明裝置2 0係於冷藏室13之左側壁面與右側壁面之棚 架13a更前方的位置依各縱方向配置，以發光元件作為光源 照亮冷藏室13内。關於照明裝置20的詳細構造，容後再述。 溫度檢測部22可檢測出冰箱1〇〇内的各部溫度。 門開閉檢測部2 4係由機械式開關或霍爾積體電路等電 子式開關所構成，可檢測出冷藏室13之冷藏室門25之開狀 態或閉狀態。 控制裝置26係設置於基板收納部28内。另外，關於控 201139958 制裝置26的詳細構造，容後再述。 又，冰箱100所具備之位於其他部位的冷减室風扇1〇可 循環冷殊室11内的冷氣’並且’阻尼器12在開的狀態時也 可使冷氣循環至冷藏室13。當冷藏室13不需要冷氣時，使 阻尼器12為關的狀態。壓縮機風扇14可使設置於機械室15 之壓縮機16或電容器（未圖示）進行空冷。電磁閥17可控制往 冷卻器18的冷媒流量。自動製冰機19可扭轉製冰盒21而使 冰塊離開製冰盒21。 第2圖係本實施型態1之照明裝置2〇的要部縱戴面圖。 如同圖所示，照明裝置20具有安裝基板i、發光二極體 2、通電端子3、斷熱板4、間隔件ό、燈罩7及外框9 ^ 安裝基板1係於一面或兩面形成有電路圖案（未圖示）之 平板狀基板》使用熱傳導性良好的環氧樹脂系基板或絕緣 金屬基板做為該安裝基板1。 做為光源之發光元件發光二極體2係形成為砲彈狀，構 造為使用來自於GaN系藍色發光二極體之藍色光、激發螢 光材料而得到白色光，並導出有流通電流的2根通電端子3。 斷熱板4係以胺基曱酸酯等樹脂形成為平板狀，並列設 有複數的插通孔，並且設置於安裝基板1與發光二極體2之間。 在此，發光二極體2係通電端子3插通於斷熱板4之插通 孔，以焊接安裝於安裝基板1之電路圖案，且於安裝基板1 依縱方向並列設置複數個發光二極體2 ^另外，當發光二極 體2之發熱量較少時，也可不設置斷熱板4。 又’依縱方向安裝有複數個發光二極體2之安裝基板！ 201139958 係藉由與外框9一體成形之間隔件6保持於設置在冰箱側璧 8内之凹部5。又，與發光二極體2之發光部隔著一定的踉 離，設有包覆住發光二極體2之發光部全體的燈罩7。如上 所述，分別於冰箱1 〇〇之庫内左右壁面安裝有照明裝置2〇。 接著’詳細說明冰箱1〇〇所具備之控制裝置26的機能構造。 第3圖係顯示本實施型態1之控制裝置26機能構造的万 塊圖。 如同圖所示，控制裝置26具備有微電腦30、照明裝置 驅動電路31、冷凍室風扇驅動電路32、壓縮機風扇驅動電 路33、電磁閥驅動電路34及自動製冰機驅動電路35。 微電腦30取得溫度檢測部22所檢測出之冰箱100内的 各部溫度，透過冷凍室風扇驅動電路32、壓縮機風扇驅動 電路33及電磁閥驅動電路34，對於冷凍室風扇1〇、壓縮機 風扇14、電磁閥17及自動製冰機19發出驅動指令。另外， 由於電磁閥17與自動製冰機19所使用之電流量較大，故將 微電腦30之程式設計成不會同時進行驅動。 具體而言’冷凍室風扇驅動電路32依照來自於微電腦 3〇的指示，驅動冷凍室風扇。在此，冷凍室風扇驅動電 路32可使冷凍室風扇1〇以可變速運轉。亦即，當冷珠室風 扇驅動電路32參照微電腦30從溫度檢測部22取得之溫度， 判斷冷;東室風崩10需要運轉時，可依照來自於微電腦3 〇的 指示，將冷;東室風扇10切換成高速旋轉或低速旋轉。 又，壓縮機風扇驅動電路33依照來自於微電腦30的指 示，驅動壓縮機風扇14。同樣地，電磁閥驅動電路34也驅 201139958 動電磁閥17,而自動製冰機驅動電路35驅動自動製冰機19。 照明裝置驅動電路31依照來自於微電腦30的指示，取 得門開閉檢測部24所檢測出之冷藏室門25的開閉狀態，當 冷藏室門25為開啟狀態時，驅動照明裝置20。 具體而言，照明裝置驅動電路31在門開閉檢測部24檢 測出冷藏室門25的開啟狀態時，當時間經過越久、使照明 裝置2〇的點亮期間越長，而使照明裝置20反覆點亮與熄 滅。亦即’當時間經過越久，照明裝置驅動電路31使電流 流通於照明裝置2〇期間之on期間相對於電流未流通於照 明裝置20期間之OFF期間的比率變大，而使照明裝置20反 覆點亮與熄滅。 又，照明裝置驅動電路31在門開閉檢測部24檢測出冷 藏室門25的開啟狀態後預定之第一期間之間，使照明裝置 20持續熄滅狀態，並在該第一期間經過後，使照明裝置2〇 反覆點亮與媳滅。亦即，照明裝置驅動電路31在第一期間 之間，使電流不流通於照明裝置20而持續熄滅狀態，並在 該第一期間經過後，控制流通於照明裝置2〇的電流使照明 裝置20反覆點亮與熄滅。 此外，照明裝置驅動電路31使照明裝置2〇反覆點亮與 熄滅後’使照明裝置20持續點亮狀態。亦即，照明裝置驅 動電路31在第二期間之間，控制流通於照明農置之電流 而使照明裝置20反覆點壳與熄滅後’使電流持續流通於照 明裝置20而持續點亮狀態。 計時器36係内藏於微電腦30 ’積算冷藏室門25呈開啟 12 201139958 狀態後之經過時間。 、,ώ第4圖係顯示本實施型態1之控制裝置26動作之一例的 /矛圖具體而$，本圖係關於照明裝置驅動電路31所進 行之照明裝置20驅動控制的流程圖。 第5圖係顯示本實施型態1之控制裝置26動作之一例的 夺間圖。具體而言，本圖係對於照明裝置20之發光二極體2 儿’、夂滅動作，以橫軸為時間單位，表示各階段（1、2、 3)動作的時間圖。 第4圖所示，在步驟1，照明裝置驅動電路31判斷門 開閉檢測部24是否已檢測出冷藏室門25的開啟狀態。然 2 ’照明裝置驅動電路31判斷門關檢測部24檢測出冷藏 室門25的_狀態時(步驟UN)，清除計時器％的計數(步 驟2) ’回到步驟卜又，當照明裝置驅動電路31判斷門開閉 檢測器24已檢測出冷藏室門25的開啟狀態時（步驟1為， 進行至步驟3。 在步驟3，照明裝置驅動電路31開始計時器36的計數， 又，將引數A設定為初期值的1。 接著，在步驟4，照明裝置驅動電路31判斷計時器36之 S十時的計數值是否大於預定之第一期間T1。然後，當照明 袭置驅動電路31判斷計時器36之計數值大於ή時（步驟4為 γ)，進行至步驟0。又，當照明裝置驅動電路31判斷計時器 36之計數值為T1以下時(步驟4為N)，進行至步驟5。 在步驟5，照明裝置驅動電路31維持發光二極體2為熄 滅狀態’回到步驟b如上所述，藉由進行步驟4及5的動作， 13 201139958 如第5圖的階段1所示，即使當門開閉檢測部24檢測出冷藏 室門25開啟時，從門開啟之T1期間，照明裝置2〇之發光二 極體2也不會點亮、而維持熄滅狀態。 又，在步驟6，照明裝置驅動電路31點亮照明裝置2〇之 發光二極體2。亦即，表示在τι期間經過後點亮照明裝置2〇 之發光二極體2。 接著，在步驟7，照明裝置驅動電路31判斷計時器36之 計數值是否大於T2xA(初期值為1}。然後’當照明裝置驅動 電路31判斷計數值為Τ2χΑ以下時(步驟7為Ν)，回到步驟6。 又，當照明裝置驅動電路31判斷計數值大於丁2)<八時(步驟7 為Υ)，進行至步驟8。 在步驟8，照明裝置驅動電路3丨使照明裝置2 〇之發光二 極體2媳滅。 接著，在步驟9，照明裝置驅動電路3丨判斷計時器36之 計數值是否大於T3。然後，當照明裝置驅動電路31判斷計 數值為T3以下時（步驟9為N) ’回到步驟§。又，當照明裝置 驅動電路31判斷計數值大於T3時(步驟9為γ)，進行至步驟1〇。 如以上所述，藉由進行步驟6〜9的動作，如第5圖之階 段2所示，為最初之T3期間的動作。亦即，T2xA期間中， 照明裝置20之發光二極體2為點亮，τ2χΑ期間經過後至T3 期間為止，發光二極體2為熄滅。 在步驟10，照明裝置驅動電路31將引數Α加上ρ值之值 作為引數A。 接著，在步驟11，照明裝置驅動電路3丨判斷Τ2χΑ是否 14 201139958 大於T3。然後，當照明裝置驅動電路31判斷Τ2χΑ為T3以下 時（步驟11為Ν)，清除計時器36的計數（步驟12)，回到步驟 6°又’當照明裝置驅動電路31判斷Τ2χΑ大於Τ3時（步驟u 為Y)，維持發光二極體2的點亮，結束處理。 如以上所述’藉由進行步驟10及11的動作，如第5圖之 階段2所示’為第2次之週期T3期間的動作。亦即，在T2>< (Α+Ρ)期間，照明裝置20之發光二極體2為點亮狀態。 接著’其後至Τ3期間為止為熄滅。如此一來，將引數 Α加上Ρ值，在τ2χΑ小於Τ3之間，慢慢增長點亮期間，同時 反覆熄滅的動作。而且，當Τ2χΑ大於Τ3時，如階段3所示， 當門開時，照明裝置20之發光二極體2亮燈。 因此，當冷藏室門25開啟時，門開閉檢測部24會檢測 出冷藏室門25的開啟狀態，但會如第5圖之階段1所示，在 Τ1期間之間，即使門為開放狀態，發光二極體2也會維持媳 滅狀態。然後，在Τ1期間經過後，進行至階段2的動作，使 點亮期間相對於預定期間Τ3為Τ2χΑ(第1個）、Τ2χ(Α+Ρ)(第2 個）、Τ2χ(Α+Ρ+Ρ)(第 3個）、…Τ2χ(Α+Ρ+·_·)(第Ν個），慢慢地 使電流流通至發光二極體2的期間變長，而使點亮的0Ν^ 間慢慢變長。如此一來，發光二極體2在第二期間之間，會 反覆點亮與熄滅。然後，如階段3所示，當點亮期間大於Τ3 期間時，冷藏室門25開放的期間之間，發光二極體2會持續 點亮。 所以，若冷藏室門25—開啟、發光二極體2就馬上點 亮，因為發光二極體2具指向性，故會因為反射至收納物、 15 201139958 或者直接較光，_彻 看清冷藏室u内部。^ ^ W目，反而無法 定時間後才點亮，gp 、，赭由土過預 庫内為冰箱外月/ 時持續T1期間維持熄滅狀態，使 :内為冰箱外周圍照明亮度以下的狀 易看 丨:庫内’可減低利用者的眼睛負擔。並且 室内的問題。如減輕μ看清冷藏 視謦、ΑΛ ’可更減低照明裝置20對利用者 ^ & ’ I可抑制冰箱100全體的t j#»。 (實施型態2) θ胃電力直〜加 在上述實施形態丨中斩漸 進行點_H日在本之點亮期間而 狀能$ f 4中，係更順暢地進行媳滅 狀態至點亮狀態的移行狀態。 明本實施形態2巾，照料置_電路贿照 月装置20反覆點亮與熄滅以使 後，反覆點亮與炉滅以㈣1 點亮 為第二點亮^使一間長於該第-點亮期間而 言’照明裝置驅動電灿藉由p侧控制，決 心綠通於照明裝置20之期間 於照明裝置2〇之期間的0FF期間之“ m未胤逋 當前述週期重覆事先預定好之錢後率的能率岐週期， 傻’變化能率比，使ON 期間的比率變大並使前述週期重霜< 裝置狐㈣減賊。冑錢次數，藉此使照明 第嶋顯示本實施型態2之控制裝置％動作之一例的 >M10°關㈣明t置控制電路31所進 16 201139958 行之照明裝置20驅動控制的流程圖。 第7圖係顯示本實施型態2之控制裝置動作之一例的時 間圖。具體而言’本圖係對於照明裝置2〇之發光二極體2的 點亮與熄滅動作，以橫軸為時間單位，表示各階段（101、 102、103)動作的時間圖。 在此，第6圖所示之步驟丨、2、4〜9、11A12與第帽 所示之步驟1、2、4〜9、11及12為相同處理，故省略詳細 δ兒明，特別洋細說明與第4圖所示之處理相異的步驟21〜U。 首先，如第6圖所示，照明裝置控制電路31判斷門開閉 檢測部2 4已檢測出冷藏室門2 5的開啟狀態時（步驟〖為γ)， 進行至步驟21。 在步驟21中，照明裝置控制電路31開始計時器36之計 數’又’將引數A設定為初期值的1、引數B設定為〇。 然後，藉由照明裝置控制電路31進行步驟4及5的動 作，如第7圖之階段101所示，從開門後之T1期間照明裝 置20之發光二極體2維持熄滅狀態。 接著，藉由照明裝置控制電路31進行步驟6〜9的動 作’如第7圖之階段102所示，為最初之T3期間的動作。亦 即’在Τ2χΑ期間’照明裝置2〇之發光二極體2點亮然後 至Τ3期間為止，發光二極體2熄滅。 之後，在步驟22，照明裝置控制電路31將Β加上丨作為 引數Β = Β+1，並判斷加上丨之後的Β是否大於5。然後，當 照明裝置控制電路31判斷加上丨之後的8為5以下時（步驟22 為^^)’回到步驟6;判斷大於5時(步驟22為Υ)，進行至步驟23。 17 201139958 在步驟23，照明裝置控制電路3i將引數a加上p值的值 作為引數A，而引數b為〇。 接著，照明裝置控制電路31在步驟U，比較與 Ή ’ s判斷Τ2χΑ為下時(步驟，清除計時器％ 的片數(步驟12) ’回到步驟6。又當照明裝置控制電路η 判斷T2xA大於T3時（步驟，使發光二極體2持續點 亮，並結束處理。 如以上所述，藉由進行步驟22、的動作，如第7 圖之又102所不’在最初的T3期間，τ2χΑ期間(第一點亮 期_亮後、至Τ3期間為止為熄滅，重複5次以上動作。 然後，第2個週期Τ3期間的動作係Τ2χ(Α+ρ)期間（第二點亮 期間)點亮後、至Τ3期間為止為熄滅，並重複以上動作5次。 亦即’照明裝置控制電路31藉由pwM控制，決定能率 及週期。在此’月b率比係指電流流通於照明裝置2〇期間 之⑽期間（Τ2χΑ期間）與電流未流通於照明裝置2〇期間之 F期間（T3 T2xA期間）的比率，而週期係指τ3期間。而 且’照明裝置㈣電路31反㈣述週期5次後，變化能率比 使期間為Τ2χ(Α+Ρ)期間，增加⑽期間的比率，更反覆 該週期5次。 如上所述，將Ρ值加上引數A，在Τ2χΑ小於丁3時，反覆 進行慢慢增長點亮期間、麟_作。而且，#Τ2χΑ大於 3時，如階段103所示，在門開啟時，照明裝置2〇之發光二 極體2為點亮。 如以上所述，在本貫施开入態中，開啟冷藏室門25時， 18 201139958 關於使用安料可發出可見光線區域内波長光之發光二極 體2之安裝基板i的照明裝置2⑽點亮，當門開閉檢測部24 檢測出冷藏至P ] 2 5的開啟狀,4時’發光二極體2繼續保持炮 滅，在經過預定期間T1後進行如下動作。 亦即，如第7圖之階段1〇2所示，相對於事先設定之丁3 期間，在Τ2ΧΑ期間，照明裝置2〇之發光二極體2為點亮， 而在丁2从的點亮期間過後、至Τ3期間結束為止為媳滅。上 述連串動作反覆進行Β次（本實施例為5次），接著將相對 於Τ3的點亮期間延長為τ2χ(Α+Ρ)期間，同樣反覆點亮與媳 滅Β次，更延長點亮期間而反覆Β次。然後，最後當丁以八大 於Τ3時，持續發光二極體2的電流0Ν期間，持續點亮狀態。 藉此Μ利用者開啟冷藏至門25時’由於發光二極體2 會從媳滅狀態平順緩慢地變成點亮狀態，故可減少因具指 向性之發光二極體2的光所造成的目眩、難以看清冰箱内部 的問題’並可達到減少冰箱100全體消費電力量的效果。 又，如上所述，係固定反覆點亮與熄滅次數(例如5次) 而進行點亮控制’但也可慢慢減少反覆相對於丁3之該點真 期間的次數。 藉此，可平順地控制從熄滅狀態移行至點*狀n門 的發光二極體2之亮度。 又，冷藏室門25開啟時’藉由至點亮前 "月】維持一定期間 的熄滅狀態，可提升照明的品質，並可抑鈿、人* 仰制令藏室門25開 啟時的消費電力。 可藉由門開閉 並且，本發明之冰箱具有控制裝置26， 201139958 檢測部24之檢測結果來控制流通於發光二極體2之電流，當 門開閉檢測部24檢測出冷藏室門25的開啟狀態時，控制裝 置26使流通於發光二極體2之電流在預定期間⑽後，控制 電淥之ON與OFF的期間比率中ON期間的比率慢慢變大。 藉此，由於點亮時照明裝置20會慢慢點亮，故可提升 照明品質，並可抑制冷藏室門25開啟時的消費電力。又， 由於減少發光二極體2的ON期間，故可達到延長發光二極 體2壽命的效果。 又’本發明之冰箱具有控制裝置26 ’可藉由門開閉檢 測部24之檢測結果來控制流通於發光二極體2之電流，當門 開閉檢測部24檢測出冷藏室門25的開啟狀態時，控制裝置 26使流通於發光二極體2之電流在預定期間〇ff後，控制電 流之ON與OFF反覆數次(貫施例2為5次），然後慢慢增長on 期間。 藉此’由於在發光一極體2點亮時，照明裝置2〇之發光 二極體2係從溫和的點亮狀態慢慢延長點亮期間，故可更提 升具有高級感的照明品質。 又，在實施形態1中，係如第4圖之步驟4所示，進行控 制在經過預定期間T1後’點壳發光二極體2而慢慢連續點 亮’但也可不經過預定期間，亦即以T1 ==〇前進至步驟6， 之後皆與實施形態1相同。 藉此，藉由不一口氣點亮照明裝置而慢慢地點亮，可 減輕利用者的視覺負擔’減少因目眩或光反射造成之必要 時間以上的門開放狀態’而可抑制冰箱1〇〇全體的消費電力 20 201139958 量增加。 又，在實施形態2中也一樣，第6圖之步驟4中，係在經 過預定期間T1後，點亮發光二極體2，但也可進行控制在不 經過預定期間，亦即以T1 = 0前進至·步驟6之後皆與實施 形態2相同。 (實施形態3) 在上述實施形態1、2中，如第1圖之冰箱100，照明裝 置20依縱方向形成於冷藏室13内的左右兩方側壁面時’具 體而言，配置於較冷藏室13内之棚架13a更前方時’依上述 實施形態進行發光二極體2的控制。 如第1圖所示，當上部係配置於利用者臉部高度之冷藏 室13時，由於照明冷藏室13内之發光二極體2光軸具有指向 性，特別是當光軸朝向冷藏室13之開口部方向時，發光二 極體2的光容易進入利用者的眼睛，而當冷藏室門25開啟 時，若發光二極體2的點亮期間可慢慢延長，則利用者的眼 睛也可漸漸習慣光以方便看冷藏庫内。 又’即使是第1圖所示之冰箱1〇〇以外的情況，如第8圖 所示之冰箱101所示’照明裝置2〇之發光二極體2配置於冷 藏室13的内面壁，並配置成朝向冷藏室13的開口方向時， 由於光容易進入利用者的眼睛，故若可如上所述慢慢延長 點焭期間，則可使眼睛習慣、減少刺眼情形。第8圖係本實 轭形態3將發光二極體2配置於内面壁之冰箱1〇1的要部縱 截面圖。 另外，可使燈罩7為透明板，呈凹凸形狀。藉此，由於 21 201139958 毛光-極體2的光轴可藉由凹凸形狀而擴散，故可減少光進 入眼目月X >(吏燈罩7為半透明化也可達到使光擴散的效果。 並且如第9圖所示之冰箱1〇2所示，照明裝置2〇之發 光-極體2依前後方向配置於冷藏室13之天花板壁並列配 置有複數個時’具體而言，係發光二極體2光軸向錯直方向 下方地配置於冷藏室13的天花板壁時，由於其具指向性， 故所照射之範圍為相對於光轴約3()、因此，即使發光二極 體2光軸向著錯直方向下方，也呈光容易從上方射入利用者 雙眼的配置關係。第9圖係本實施形態3將發光二極體2配置 於天花板壁之冰箱1〇2的要部縱截面圖。 又’即使是配置成發光二極體2光轴向著鉛直下方的情 況’即使使燈罩7形成為可使光擴散的凹凸構造，光也會容 易進入雙眼。 因此’在此情況下，從遠離利用者眼睛的内側發光二 極體2向著靠近利用者處的發光二極體2輪流進行實施形態 1、2所示之點売動作，藉此可減少刺眼情形而可減少消費 電力量的增加。 又’改變配置於内側之發光二極體2與配置於前方側的 發光二極體2的壳度，設定為從内側越靠前方側者、光度越 低’藉此可減輕利用者的視覺負擔》 另外，第10圖係本實施形態3之將發光二極體2配置於 側面壁之冰箱103的要部橫戴面圖。具體而言，同圖係以冷 凍室11與冷藏室13、左右隔熱區分冷束室11及冷藏室13之 區分壁50所形成的冰箱103的截面圖。 22 201139958 如該圖所示，在冰箱103，配置有2個具有安裝基板1之 冷藏室照明裝置20a ’而安裝基板1安裝有複數發光二極體 2 ’藉由檢測可開閉冷藏室13前面開口部之冷藏室門25的開 閉，當冷藏室門25開啟時，發光二極體2會點亮。又，在冰 箱103，更配置有具有安裝基板丨之冷凍室照明裝置2〇b，安 裝基板1上安裝有複數發光二極體2，當冷凍室門25a開啟 時，發光二極體2會點亮。具體而言，在冷藏室13左右兩側 面壁之棚架13a前方，設置有冷藏室照明裝置2〇a，而在冷 凍室11之左側面壁的棚架1 la前方，設置有冷凍室照明裝置 20b。 當僅開放冷藏室13之冷藏室門25時，只有2個冷藏室照 明裝置20a會如實施形態1、2般慢慢延長點亮期間，在經過 預疋期間後，進行點亮控制而持續連續的點亮狀態。當僅 開放冷凍室門25a時也一樣，只有冷凍室照明裝置2〇b會慢 慢延長點売期間，在經過預定期間後，進行點亮控制而持 續連續的點亮狀態。 又，分別於側面壁及天花板壁的不同2處配置冷藏室照 明裝置20a的情況下，進行點亮控制，使配置於不同處之冷 藏室照明裝置20a同步而慢慢延長點亮期間，在經過預定期 間後，進行點亮控制而持續連續的點亮狀態。 藉此，藉由不一口氣點亮照明裝置而更順暢地慢慢點 亮，可減輕利用者的視覺負擔，減少因目眩或光反射造成 之非必要的門開放狀態，而可抑制冰箱1〇〇全體的消費電力 量增加。 23 201139958 產業上之可利用性 如以上所述，本發明之冰箱當然可適用於使用發光二極 體照明之家庭用«務用冰箱，並且可廣泛地應麟具有門 靡之物%藏裝置等使用發光二極體照明的設備機器。 【圖式簡單說明】 第1 2 3 4圖係實施型態丨的冰箱截面圖。 第2圖係實施型態匕照明裝置的要部縱截面圖。 第圖係顯不實施型態i之控制裂置機能構成的方塊圖。 第須係顯示實施型態i之控制裝置動作之一例的流程圖。 第5圖係顯示實施型態丨之控制裝置動作之—例的時間圖。 第6圖係顯示實施型態2之控制裝置動作之一例的流程圖。 第頂係顯示實施型態2之控制裝置動作之一例的時間圖。 第8圖係實施型態3將發光二極體配置於内面壁之冰箱 的要部縱截面圖。 ，第9圖係實施型態3將發光二極體配置於天花板壁之冰 相的要部縱截面圖。 第_係實施型態3將發光二極體配置於側面壁之冰 箱的要部橫截面圖。 【主要元件符號說明】 6…間隔件 7…燈罩 8…冰箱側壁 9…外樞 10…冷凍室風扇 24 1 …安裝基板 2 2…發光二極體 3 ··.通電端子 4 …斷熱板 5...凹部 201139958 11...冷凍室 22...溫度檢測部 11 a...棚架 24...門開閉檢測部 12...阻尼器 25...冷藏室門 13...冷藏室 25a...冷凍室門 13a...棚架 26...控制裝置 14...壓縮機風扇 28...基板收納部 15...機械室 30...微電腦 16...壓縮機 31…照明裝置驅動電路 17...電 闊 32...冷凍室風扇驅動電路 18...冷卻器 33...壓縮機風扇驅動電路 19...自動製冰機 34...電磁閥驅動電路 20…照明裝置 35...自動製冰機驅動電路 20a...冷藏室照明裝置 36...計時器 20b...冷凍室照明裝置 50...區分壁 21...製冰盒 100、101、102、103···冰箱 25BACKGROUND OF THE INVENTION In recent years, a semiconductor light-emitting element has been proposed as a lighting device installed in a refrigerator because of low heat generation, light that does not generate infrared wavelength, and low-voltage driving, instead of the white heat lamp to date. Or a light bulb in the refrigerator. In the refrigerator in which the light-emitting diodes (semiconductor light-emitting elements) are used as the illumination device, the plurality of light-emitting diodes are arranged in a square shape, and are placed in the ceiling of the refrigerator to illuminate the interior of the refrigerator (see, for example, Patent Document 1) . In the above conventional refrigerator, first, when the refrigerator door is closed, the energization of the light-emitting diode is not performed, so that the light is not irradiated into the refrigerator. Further, when the refrigerator door is opened, the electronic switch such as a mechanical switch or a Hall integrated circuit is judged to be in a door opening state, and a forward current flows through the light emitting diode to emit white light to illuminate the refrigerator. CITATION LIST Patent Literature Patent Literature 1: JP-A-2001-82869 SUMMARY OF THE INVENTION SUMMARY OF THE INVENTION PROBLEM TO BE SOLVED BY THE INVENTION 201139958 However, the above-mentioned conventional refrigerator repeats the lighting of the lighting device by the opening and closing of the refrigerator door. Extinguished. In particular, when the light source of the illuminating device is a light-emitting diode, the illuminating device reflects the glare of the object in the refrigerator, and the illuminating direction of the illuminating diode is directed toward the user side. Light can easily enter the eyes of the user; especially when the indoor lighting is turned on in the closed state, if the light-emitting body of the lighting device is immediately lit in one breath, it is easy to fall into the glare and cannot see the contents in the refrigerator. situation. Therefore, the user cannot reliably take out the required storage items or can not reliably place them in the storage position, and the refrigerator door can be opened in an unnecessary state for a long time. Therefore, even if an energy-saving light-emitting diode is used as the illumination, the heat energy invaded into the refrigerator is increased, and the cooling efficiency is lowered to increase the power consumption. The present invention has been made in view of the above problems, and it is an object of the invention to provide a refrigerator having a lighting device capable of illuminating a storage compartment, which can reduce the visual burden of the user and reduce an unnecessary door opening state which is increased by glare or reflection. Time, and can suppress the increase in the amount of power consumed by the entire refrigerator. Means for Solving the Problems In order to solve the above problems, a refrigerator according to an aspect of the present invention includes a storage chamber having an opening in front, a door that can open and close the opening, and a light-emitting element. The light source illuminates the lighting device in the storage compartment, and includes a door opening and closing detecting unit that is in an open state and a closed state; and a control device that detects when the door opening and closing detecting unit detects the opening state of the door The illumination device is turned on and off in response to the 201139958, so that the longer the time passes, the longer the lighting period of the illumination device is. Thereby, in the refrigerator having the illuminating device illuminating the storage compartment, the illuminating device is not lit at once, and is turned on and off repeatedly to gradually light up. Thereby, the visual burden of the user can be reduced, and the unnecessary opening time of the refrigerator door due to glare or reflection can be reduced, and the increase in the amount of consumed electric power of the entire refrigerator can be suppressed. EFFECTS OF THE INVENTION According to the refrigerator of the present invention, which illuminates the lighting device in the storage compartment, the lighting device can be turned on without being turned on at once, and then turned on and off repeatedly. Thereby, the visual burden of the user can be reduced, and the unnecessary opening time of the refrigerator door due to glare or reflection can be reduced, and the increase in the amount of power consumed by the entire refrigerator can be suppressed. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view of a refrigerator in an embodiment 1. Fig. 2 is a longitudinal sectional view of an essential part of an illumination device of the first embodiment. Fig. 3 is a block diagram showing the functional configuration of the control device of the embodiment 1. Fig. 4 is a flow chart showing an example of the operation of the control device of the first embodiment. Fig. 5 is a timing chart showing an example of the operation of the control device of the first embodiment. Fig. 6 is a flow chart showing an example of the operation of the control device of the embodiment 2. Fig. 7 is a timing chart showing an example of the operation of the control device of the embodiment 2. Fig. 8 is a longitudinal sectional view of an essential part of a refrigerator in which the light-emitting diodes are disposed on the inner wall of the embodiment. Fig. 9 is a longitudinal sectional view of an essential part of the case of the embodiment 3 in which the light-emitting diode is placed on the ceiling wall. Fig. 1 is a cross-sectional view of an essential part of an ice box in which a light-emitting diode is disposed on a side wall. I. EMBODIMENT OF THE INVENTION The refrigerator according to the first aspect of the invention includes a storage compartment having an opening at the front, a door that can open and close the opening, and a light-emitting element as a light source. The lighting device in the storage compartment includes a door opening and closing detecting unit that can detect the open state and the closed state of the door; and the control device ′ when the door opening and closing detecting unit detects the open state of the door. The front illuminator device is repeatedly turned on and off, so that the longer the time passes: the longer the lighting period of the aforementioned illumination device is. According to the above invention, the illuminating device that illuminates the lighting device in the storage compartment repeatedly turns the illuminating device on and off so that the longer the time elapses and the longer the lighting device illuminates. In this way, the sigma gas can be ignited by lighting the illuminating device, and the illuminating device can be lightly illuminated, thereby reducing the visual burden of the occupant, reducing the unnecessary state of the refrigerator due to glare or reflection, and suppressing the consumption of the entire refrigerator. The amount of electricity has increased. According to a second aspect of the invention, in the first aspect of the invention, the control device causes the illumination device to be turned on and off repeatedly, and the ON period during which the phase passes longer and the current flows through the illumination device does not flow with respect to the current. The proportion during the QFF period during the aforementioned illumination device is larger. In this way, the illumination device is repeatedly turned on and off, so that the longer the time elapses, the higher the ratio of the ON# of the current to the period of the 〇FF. During the period in which the current is controlled by the control system 201139958, the lighting device can be illuminated without being turned on. Thereby, the visual burden of the user can be reduced, and the unnecessary opening state of the refrigerator due to glare or reflection can be reduced, and the increase in the amount of power consumed by the entire refrigerator can be suppressed. According to a third aspect of the invention, in the second aspect of the invention, the control device is configured to continue the illumination device between the first period of the opening after the door opening/closing detecting unit detects the open state of the door After the first period has elapsed, the illumination device is repeatedly turned on and off. Thereby, the illumination device is continuously turned off between the predetermined periods after the opening state of the door is detected, and then the illumination device is repeatedly turned on and annihilated. That is, when the opening is made, the brightness in the refrigerator seen by the reader is the same as or lower than the 7C degrees around the outside of the refrigerator. As a result, the visual burden of the user can be reduced and the brightness can be gradually brightened. Therefore, the visual burden on the user caused by the illumination device can be further reduced, and the increase in the amount of power consumed by the entire refrigerator can be suppressed. Further, in the refrigerator according to the fourth aspect of the invention, in the third aspect of the invention, the control device is placed between the first periods, and the current does not flow through the illumination device to continue the image-crushing state, and the first period is After the passage, the current flowing through the illumination device is controlled to cause the illumination device to repeatedly illuminate and annihilate. Thereby, the current flowing through the illumination device is controlled so that the current does not flow through the illumination device and is continuously turned off, and the illumination device is repeatedly turned on and off. That is, by controlling the current flowing through the illumination device, when the door is opened, the brightness in the refrigerator seen by the user is the same as or lower than the brightness of the surroundings of the refrigerator. As a result, the visual burden of the user can be reduced and the brightness can be gradually brightened. Therefore, the burden on the user's vision 201139958 caused by the illumination device can be further reduced, and the increase in the amount of power consumption of the entire refrigerator can be suppressed. Further, in the refrigerator according to the fifth aspect of the invention, in the first to fourth inventions, the control device causes the illumination device to be continuously turned on after the illumination device is turned on and off. Further, in the refrigerator according to the sixth aspect of the invention, particularly in the first aspect, the control device continues to illuminate and annihilate the illuminating device by controlling a current flowing through the illuminating device during the second period. The current is circulated to the illumination device to be continuously lit. Thereby, by controlling the current flowing through the illumination device, the illumination is cleaved and turned on and off, and then the current is continuously circulated to the illumination device to be continuously lit. As a result, it is possible to prevent the illumination from being suddenly brightened and to continue to illuminate after being gradually turned on. Therefore, the visual burden on the user due to the illuminating device can be further reduced, and the increase in the amount of consumed electric power of the entire refrigerator can be suppressed. Further, in the refrigerator according to the seventh aspect of the invention, in the second to sixth inventions, the control device causes the lighting device to be turned on and off after the lighting period is the first lighting period, and the lighting period is further The lighting is turned on and off repeatedly over the second lighting period of the first lighting period. Further, in the refrigerator according to the eighth aspect of the invention, in the seventh aspect of the invention, the control device determines, by the pwM control, a period during which the current flows through the illumination device, and a period during which the current does not flow through the illumination device. In the energy ratio and the period of the ratio of the FF period, after the period is repeated for a predetermined number of times, the energy ratio is changed, the ratio of the ON period is increased, and the period is repeated by the number of times. Repeatedly lit and extinguished. As a result, the illumination device is turned on and off after the same lighting period, and the lighting period is turned on and off during the lighting period. Specifically, in the case of PWM (Pulse Width Modulation) control, the ratio of the ON period of the current is increased, and the illumination device is repeatedly turned on and off. In this way, since the lighting control can be performed by gradually increasing the brightness in a smoother manner, the visual burden of the user can be reduced, and the unnecessary opening state of the refrigerator door due to glare or reflection can be reduced, and the entire refrigerator can be suppressed. The amount of electricity consumed has increased. Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same components as those of the conventional embodiments or the described embodiments are denoted by the same reference numerals, and the detailed description is omitted. Further, the present invention is not limited to the embodiment. (Embodiment 1) Hereinafter, an embodiment 1 of the present invention will be described based on Figs. 1 to 4 . Fig. 1 is a cross-sectional view showing a refrigerator 1 of the embodiment 1 of the present invention. As shown in the figure, in the refrigerator 100, a plurality of storage compartments having an opening portion in front are formed: a freezing compartment 11 or a refrigerating compartment 13. The refrigerator compartment 13 is configured to be able to open and close the front opening portion freely by the refrigerator compartment door 25. Further, the refrigerator 1A includes an illumination device 20, a temperature detecting unit 22, a door opening/closing detecting unit 24, and a control device 26. The illuminating device 20 is disposed in the longitudinal direction at a position on the left side wall surface of the refrigerating chamber 13 and the shelf 13a on the right side wall surface, and illuminates the inside of the refrigerating chamber 13 with the light-emitting element as a light source. The detailed structure of the illuminating device 20 will be described later. The temperature detecting unit 22 can detect the temperature of each part in the refrigerator 1〇〇. The door opening/closing detecting unit 24 is constituted by an electronic switch such as a mechanical switch or a Hall integrated circuit, and can detect an open state or a closed state of the refrigerating compartment door 25 of the refrigerating compartment 13. The control device 26 is provided in the substrate housing portion 28. In addition, the detailed structure of the control device 201139958 device 26 will be described later. Further, the cooling chamber fan 1 located at the other portion of the refrigerator 100 can circulate the cold air in the cold room 11 and the cold air can be circulated to the refrigerating chamber 13 when the damper 12 is in the open state. When the refrigerating compartment 13 does not require cold air, the damper 12 is turned off. The compressor fan 14 can air-cool the compressor 16 or a capacitor (not shown) provided in the machine room 15. The solenoid valve 17 controls the flow of refrigerant to the cooler 18. The automatic ice maker 19 can twist the ice making box 21 to cause the ice cubes to leave the ice making box 21. Fig. 2 is a longitudinal sectional view of an essential part of the illumination device 2 of the first embodiment. As shown in the figure, the illuminating device 20 has a mounting substrate i, a light emitting diode 2, an energizing terminal 3, a heat insulating plate 4, a spacer ό, a lamp cover 7, and an outer frame 9 ^ The mounting substrate 1 is formed with a circuit on one or both sides. In the flat substrate of the pattern (not shown), an epoxy resin substrate or an insulating metal substrate having excellent thermal conductivity is used as the mounting substrate 1. The light-emitting element light-emitting diode 2 as a light source is formed in a bullet shape, and is configured to obtain white light using blue light from a GaN-based blue light-emitting diode and an excitation fluorescent material, and derive a current flowing therethrough. Root energized terminal 3. The heat-dissipating plate 4 is formed into a flat plate shape by a resin such as an amino phthalate, and has a plurality of insertion holes arranged therebetween, and is provided between the mounting substrate 1 and the light-emitting diode 2. Here, the light-emitting diode 2 is inserted into the insertion hole of the heat-dissipating plate 4 to solder the circuit pattern mounted on the mounting substrate 1, and a plurality of light-emitting diodes are arranged side by side in the vertical direction of the mounting substrate 1. Body 2 ^ In addition, when the amount of heat generated by the light-emitting diode 2 is small, the heat-dissipating plate 4 may not be provided. Further, a mounting substrate of a plurality of light-emitting diodes 2 is mounted in the longitudinal direction! 201139958 is held by the spacer 6 integrally formed with the outer frame 9 in the recess 5 provided in the side wall 8 of the refrigerator. Further, a lamp cover 7 covering the entire light-emitting portion of the light-emitting diode 2 is provided with a predetermined separation from the light-emitting portion of the light-emitting diode 2. As described above, the lighting device 2 is attached to the left and right wall surfaces of the refrigerator 1 分别. Next, the functional structure of the control device 26 provided in the refrigerator 1A will be described in detail. Fig. 3 is a plan view showing the functional configuration of the control device 26 of the first embodiment. As shown in the figure, the control device 26 includes a microcomputer 30, an illumination device drive circuit 31, a freezer fan drive circuit 32, a compressor fan drive circuit 33, a solenoid valve drive circuit 34, and an automatic ice maker drive circuit 35. The microcomputer 30 obtains the temperature of each part in the refrigerator 100 detected by the temperature detecting unit 22, and passes through the freezing compartment fan drive circuit 32, the compressor fan drive circuit 33, and the solenoid valve drive circuit 34, and the freezer compartment fan 1 and the compressor fan 14 The solenoid valve 17 and the automatic ice maker 19 issue a drive command. Further, since the amount of current used by the solenoid valve 17 and the automatic ice maker 19 is large, the microcomputer 30 is programmed not to be driven at the same time. Specifically, the freezer compartment fan drive circuit 32 drives the freezer compartment fan in accordance with an instruction from the microcomputer. Here, the freezer compartment fan drive circuit 32 allows the freezer compartment fan 1 to operate at a variable speed. That is, when the cold bead chamber fan drive circuit 32 refers to the temperature obtained by the microcomputer 30 from the temperature detecting unit 22, it is judged to be cold; when the east chamber avalanche 10 needs to be operated, it can be cooled according to the instruction from the microcomputer 3; The fan 10 is switched to a high speed rotation or a low speed rotation. Further, the compressor fan drive circuit 33 drives the compressor fan 14 in accordance with an instruction from the microcomputer 30. Similarly, the solenoid valve drive circuit 34 also drives the 201139958 dynamic solenoid valve 17, and the automatic ice maker drive circuit 35 drives the automatic ice maker 19. The illuminating device drive circuit 31 takes the opening and closing state of the refrigerating compartment door 25 detected by the door opening/closing detecting unit 24 in accordance with an instruction from the microcomputer 30, and drives the illuminating device 20 when the refrigerating compartment door 25 is in the open state. Specifically, when the door opening/closing detecting unit 24 detects the open state of the refrigerating compartment door 25, the illuminating device drive circuit 31 reverses the lighting device 20 as the time elapses and the lighting period of the illuminating device 2 turns longer. Lights up and goes out. In other words, the longer the time elapses, the larger the ratio of the period during which the illumination device drive circuit 31 causes the current to flow through the illumination device 2 to the OFF period during which the current does not flow through the illumination device 20, and the illumination device 20 is turned over again. Lights up and goes out. Moreover, the illuminating device drive circuit 31 keeps the illuminating device 20 in a state of being extinguished between the first predetermined period after the door opening/closing detecting unit 24 detects the open state of the refrigerating compartment door 25, and after the first period has elapsed, the illumination is made. The device 2 〇 repeatedly lights up and annihilates. In other words, the illuminating device drive circuit 31 keeps the current from flowing through the illuminating device 20 during the first period and continues to be extinguished, and after passing the first period, controls the current flowing through the illuminating device 2 to cause the illuminating device 20 Repeatedly lit and extinguished. Further, the illuminating device drive circuit 31 causes the illuminating device 2 to be continuously turned on after the illuminating device 2 is turned on and off. In other words, the illuminating device driving circuit 31 controls the current flowing through the illuminating device during the second period to cause the illuminating device 20 to repeatedly circulate and extinguish the current, and the current continues to flow through the illuminating device 20 to continue the lighting state. The timer 36 is stored in the microcomputer 30' to calculate the elapsed time after the refrigerator compartment door 25 is turned on 12 201139958. Further, Fig. 4 is a flowchart showing an example of the operation of the control device 26 of the first embodiment, and Fig. 4 is a flowchart showing the drive control of the illumination device 20 performed by the illumination device drive circuit 31. Fig. 5 is a slap diagram showing an example of the operation of the control device 26 of the first embodiment. Specifically, this figure is a time chart showing the operation of each stage (1, 2, 3) with respect to the light-emitting diode 2 of the illumination device 20 and the annihilation operation, with the horizontal axis being the time unit. As shown in Fig. 4, in step 1, the illumination device drive circuit 31 determines whether or not the door opening/closing detecting portion 24 has detected the open state of the refrigerating compartment door 25. 2 'the illuminating device drive circuit 31 determines that the door closing detecting unit 24 detects the _ state of the refrigerating compartment door 25 (step UN), and clears the count of the timer % (step 2) 'back to step ib, when the illuminating device is driven The circuit 31 judges that the door opening/closing detector 24 has detected the open state of the refrigerating compartment door 25 (Step 1 is to proceed to Step 3. In Step 3, the illuminating device driving circuit 31 starts counting of the timer 36, and, in addition, the argument A is set to 1 of the initial value. Next, in step 4, the illumination device drive circuit 31 determines whether or not the count value of the S10 of the timer 36 is greater than the predetermined first period T1. Then, when the illumination attack drive circuit 31 determines the timing When the count value of the device 36 is greater than ή (step γ is γ), the process proceeds to step 0. Further, when the illumination device drive circuit 31 determines that the count value of the timer 36 is equal to or less than T1 (step 4 is N), proceed to step 5. In step 5, the illumination device driving circuit 31 maintains the light-emitting diode 2 in an extinguished state. [Back to step b, as described above, by performing the operations of steps 4 and 5, 13 201139958 is as shown in phase 1 of FIG. Even when the door opening and closing detecting portion 24 detects When the refrigerating compartment door 25 is opened, the light-emitting diode 2 of the illuminating device 2 is not turned on during the period T1 when the door is opened, and is kept off. Further, in step 6, the illuminating device driving circuit 31 illuminates the illuminating device. 2, the light-emitting diode 2, that is, the light-emitting diode 2 that illuminates the illumination device 2 after passing through the period of τι. Next, in step 7, the illumination device drive circuit 31 determines whether the count value of the timer 36 is It is greater than T2xA (initial value is 1}. Then 'When the illumination device drive circuit 31 determines that the count value is Τ2χΑ or less (step 7 is Ν), it returns to step 6. Also, when the illumination device drive circuit 31 determines that the count value is greater than D2 ) < Eight o'clock (Step 7 is Υ), proceed to Step 8. At step 8, the illuminating device drive circuit 3 annihilates the illuminating diode 2 of the illuminating device 2 . Next, at step 9, the illumination device drive circuit 3 determines whether the count value of the timer 36 is greater than T3. Then, when the illumination device drive circuit 31 determines that the count value is equal to or less than T3 (step 9 is N), the process returns to step §. Further, when the illumination device drive circuit 31 determines that the count value is larger than T3 (step 9 is γ), the process proceeds to step 1A. As described above, by performing the operations of steps 6 to 9, as shown in the second step of Fig. 5, the operation is performed during the first T3 period. That is, during the T2xA period, the light-emitting diode 2 of the illumination device 20 is turned on, and the light-emitting diode 2 is turned off after the τ2χΑ period elapses until the T3 period. In step 10, the illumination device drive circuit 31 adds the value of the argument Α to the value of ρ as the argument A. Next, in step 11, the lighting device driving circuit 3 determines whether or not 20112χΑ is greater than T3. Then, when the illumination device drive circuit 31 determines that Τ2χΑ is equal to or less than T3 (step 11 is Ν), the count of the timer 36 is cleared (step 12), and the process returns to step 6° and 'when the illumination device drive circuit 31 determines that Τ2χΑ is greater than Τ3. (Step u is Y), the lighting of the light-emitting diode 2 is maintained, and the processing is terminated. As described above, by performing the operations of steps 10 and 11, as shown in phase 2 of Fig. 5, the operation is performed during the second period T3. That is, at T2>< (Α+Ρ), the light-emitting diode 2 of the illumination device 20 is in a lighted state. Then, it is extinguished until then. In this way, the argument Α is added to the Ρ value, and when τ2 χΑ is smaller than Τ3, the lighting period is gradually increased, and the operation is repeatedly extinguished. Moreover, when Τ2χΑ is larger than Τ3, as shown in stage 3, when the door is opened, the light-emitting diode 2 of the illumination device 20 lights up. Therefore, when the refrigerating compartment door 25 is opened, the door opening and closing detecting portion 24 detects the open state of the refrigerating compartment door 25, but as shown in the phase 1 of Fig. 5, even if the door is open during the Τ1 period, The light-emitting diode 2 also maintains an annihilation state. Then, after the passage of the Τ1 period, the operation to the stage 2 is performed, so that the lighting period is Τ2χΑ (1st), Τ2χ(Α+Ρ) (2nd), Τ2χ (Α+Ρ+) with respect to the predetermined period Τ3. Ρ) (3rd), ... Τ2χ(Α+Ρ+·_·) (the third one), the period during which the current is gradually circulated to the light-emitting diode 2 is lengthened, and the light is turned on. Slowly grow longer. As a result, the light-emitting diode 2 is repeatedly turned on and off during the second period. Then, as shown in the stage 3, when the lighting period is longer than the Τ3 period, the light-emitting diode 2 is continuously lit during the period in which the refrigerating compartment door 25 is opened. Therefore, if the refrigerating compartment door 25-opens and the light-emitting diode 2 is immediately lit, since the light-emitting diode 2 has directivity, it will be reflected to the storage object, 15 201139958 or directly light, Room u interior. ^ ^ W, but can not be lit after a certain time, gp,, 赭 土 土 土 土 预 预 预 预 预 预 预 预 预 预 预 g g g g g g g g g g g g g g g g g g g g g g g g g g g g g Look at the 丨: Cune' can reduce the eye burden of the user. And indoor problems. If it is reduced, the refrigerating view ΑΛ, ΑΛ ’ can reduce the illumination device 20 to the user ^ & ’ I can suppress the t j#» of the entire refrigerator 100. (Embodiment 2) θ gastric power straightening is added to the above-described embodiment, and the gradual progress point _H is in the lighting period of the present state, and the energy is more smoothly ignited to the lighting state. The state of the transition. In the embodiment of the present invention, the towel is turned on and off, so that the backlight is turned on and off, and then turned on and off. (4) 1 is lit to the second lighting ^ to make one longer than the first lighting During the period of time, the illuminator drive is controlled by the p-side, and the determination is green during the period of the illuminating device 20 during the 0FF period of the illuminating device 2. After the rate of energy rate 岐 cycle, silly 'change rate ratio, so that the ratio during the ON period becomes larger and the aforementioned cycle heavy frost < Device Fox (four) minus thieves. The number of times of the money is used to cause the illumination to display the flow control of the illumination device 20 in the example of the % control operation of the second embodiment of the present embodiment. . Fig. 7 is a timing chart showing an example of the operation of the control device of the second embodiment. Specifically, this figure is a time chart showing the operation of each stage (101, 102, 103) with respect to the lighting and extinguishing operation of the light-emitting diode 2 of the illumination device 2, with the horizontal axis as a time unit. Here, the steps 丨, 2, 4 to 9, 11A12 shown in Fig. 6 are the same as the steps 1, 2, 4 to 9, 11 and 12 shown in the cap, so that the detailed δ 儿 明, Steps 21 to U which are different from the processing shown in Fig. 4 will be described in detail. First, as shown in Fig. 6, the illuminating device control circuit 31 determines that the door opening/closing detecting unit 24 has detected the open state of the refrigerating compartment door 25 (step γ), and proceeds to step S21. In step 21, the illumination device control circuit 31 starts the count of the timer 36, and sets the argument A to the initial value and the argument B to 〇. Then, the operations of steps 4 and 5 are performed by the illumination device control circuit 31. As shown in the stage 101 of Fig. 7, the light-emitting diode 2 of the illumination device 20 is maintained in an extinguished state during the period T1 after the door is opened. Next, the operation of steps 6 to 9 is performed by the illumination device control circuit 31. As shown in the phase 102 of Fig. 7, the operation is performed during the first T3 period. That is, the light-emitting diode 2 of the illumination device 2 is turned on during the period of Τ2χΑ, and the light-emitting diode 2 is turned off until the time Τ3. Thereafter, at step 22, the illuminating device control circuit 31 adds 丨 as 引 Β = Β +1 and judges whether or not Β after adding 丨 is greater than 5. Then, when the lighting device control circuit 31 determines that 8 after the addition of 丨 is 5 or less (step 22 is ^)), the process returns to step 6; when it is judged to be greater than 5 (step 22 is Υ), the process proceeds to step 23. 17 201139958 In step 23, the illumination device control circuit 3i uses the value of the argument a plus the value of p as the argument A, and the argument b is 〇. Next, the illuminating device control circuit 31 compares Ή ' s Τ 2 χΑ to the next step (step, clears the number of pieces of the timer % (step 12)' back to step 6. Further, when the illuminating device control circuit η judges T2xA When it is larger than T3 (step, the light-emitting diode 2 is continuously lit, and the processing is terminated. As described above, by performing the operation of step 22, as shown in FIG. 7 and 102, during the initial T3 period, During the period of τ2χΑ (the first lighting period _ after the light up to the Τ3 period is turned off, the operation is repeated five times or more. Then, the operation period of the second period Τ3 is Τ2χ(Α+ρ) period (second lighting period) After lighting, it is turned off until the Τ3 period, and the above operation is repeated five times. That is, the illuminating device control circuit 31 determines the energy rate and the period by the pwM control. Here, the monthly b rate ratio refers to the current flowing through the illuminating device. The period of the (10) period (Τ2χΑ period) and the F period (T3 T2xA period) during which the current does not flow in the illumination device 2〇, and the period refers to the period of τ3, and the 'lighting device (4) circuit 31 reverses (4) the period 5 After the second, change the energy rate ratio to make the period During the period of Τ2χ(Α+Ρ), the ratio of the period of (10) is increased, and the period is repeated five times. As described above, the Ρ value is added to the quotation number A, and when Τ2χΑ is less than the 丁3, the gradual increase is gradually increased during the lighting period. Further, when #Τ2χΑ is greater than 3, as shown in stage 103, when the door is opened, the light-emitting diode 2 of the illumination device 2 is lit. As described above, in the normal state of opening. When the refrigerating compartment door 25 is opened, the lighting device 2 (10) of the mounting substrate i of the light-emitting diode 2 that emits light in the visible light region using the ampule is turned on, and the door opening/closing detecting unit 24 detects the refrigerating to the P When the opening of the 2 5 is made, the luminous diode 2 continues to be fired at 4 o'clock, and the following operation is performed after the predetermined period T1 has elapsed. That is, as shown in the stage 1〇2 of Fig. 7, the setting is made in advance. During the period of 丁3, the illuminating diode 2 of the illuminating device 2 is turned on, and is annihilated after the illuminating period of the ding 2 is over and until the end of the Τ3 period. The series of operations are repeated one after another. (5 times in this embodiment), and then the lighting period relative to Τ3 is extended. During τ2χ(Α+Ρ), the lighting and annihilation times are repeated, and the lighting period is extended to repeat the Β times. Then, when Ding 八 is greater than Τ3, the current of the illuminating diode 2 is continued for 0 ,. When the user turns on the refrigerator to the door 25, the light-emitting diode 2 can be smoothly changed from the annihilation state to the light-on state, so that the light-emitting diode 2 having the directivity can be reduced. The dizziness caused by the light makes it difficult to see the problem inside the refrigerator, and the effect of reducing the amount of power consumed by the entire refrigerator 100 can be achieved. Further, as described above, the number of times of lighting and extinguishing (for example, five times) is fixed and lighted. Control 'but can also slowly reduce the number of times over which the true period of the point relative to D 3 is. Thereby, the brightness of the light-emitting diode 2 which is shifted from the extinguished state to the dot-shaped n-gate can be smoothly controlled. Moreover, when the refrigerating compartment door 25 is opened, the state of the lighting can be improved by maintaining the extinguishing state for a certain period of time until the lighting is performed, and the consumption of the lighting can be improved, and the consumption of the compartment door 25 can be suppressed. electric power. By opening and closing the door, the refrigerator of the present invention has the detection result of the control unit 26, 201139958 detecting unit 24 to control the current flowing through the light-emitting diode 2, and when the door opening/closing detecting unit 24 detects the open state of the refrigerating chamber door 25. When the current flowing through the light-emitting diode 2 is within a predetermined period (10), the control device 26 gradually increases the ratio of the ON period of the period between the ON and OFF of the control power. Thereby, since the lighting device 20 is gradually turned on when lighting, the lighting quality can be improved, and the power consumption when the refrigerating compartment door 25 is opened can be suppressed. Further, since the ON period of the light-emitting diode 2 is reduced, the effect of prolonging the life of the light-emitting diode 2 can be achieved. Further, the refrigerator of the present invention has the control device 26' that can control the current flowing through the light-emitting diode 2 by the detection result of the door opening/closing detecting portion 24, and when the door opening and closing detecting portion 24 detects the open state of the refrigerator compartment door 25. After the control device 26 causes the current flowing through the light-emitting diode 2 to be turned on for a predetermined period of time ff, the control current is turned ON and OFF several times (5 times in the second embodiment), and then the on period is gradually increased. Therefore, when the light-emitting diode 2 is turned on, the light-emitting diode 2 of the illumination device 2 is gradually extended from the light-on state to the lighting period, so that the illumination quality with a high-grade feeling can be further improved. Further, in the first embodiment, as shown in step 4 of FIG. 4, after the predetermined period T1 has elapsed, the "spot-emitting diode 2 is continuously lit and continuously lit" but the predetermined period may not be elapsed. That is, the process proceeds to step 6 with T1 ==〇, and is the same as in the first embodiment. In this way, the lighting device can be lighted up without being sighed, and the visual burden of the user can be reduced, and the door opening state of less than the necessary time due to glare or light reflection can be reduced, and the entire refrigerator can be suppressed. The amount of consumption power 20 201139958 increased. Further, in the second embodiment, in step 4 of the sixth embodiment, the light-emitting diode 2 is turned on after the predetermined period T1 has elapsed, but the control may be performed without a predetermined period, that is, with T1 = 0 advances to step 6 and is the same as in the second embodiment. (Embodiment 3) In the above-described first and second embodiments, when the illuminating device 20 is formed in the longitudinal direction on the right and left side wall surfaces in the refrigerator compartment 13 in the refrigerator 100 of the first embodiment, it is disposed in a relatively cold state. When the scaffolding 13a in the chamber 13 is further forward, the control of the light-emitting diode 2 is performed according to the above embodiment. As shown in Fig. 1, when the upper portion is disposed in the refrigerating chamber 13 of the user's face height, the optical axis of the light-emitting diode 2 in the illumination refrigerating chamber 13 has directivity, particularly when the optical axis faces the refrigerating chamber 13. In the direction of the opening portion, the light of the light-emitting diode 2 easily enters the user's eyes, and when the refrigerator compartment door 25 is opened, if the lighting period of the light-emitting diode 2 can be gradually extended, the user's eyes are also You can gradually get used to the light to see the refrigerator. In addition, even in the case of the refrigerator shown in Fig. 1, the light-emitting diode 2 of the illuminating device 2 is disposed on the inner wall of the refrigerator compartment 13 as shown in the refrigerator 101 shown in Fig. 8 and When it is arranged to face the opening direction of the refrigerating compartment 13, since light easily enters the eyes of the user, if the point is gradually extended as described above, the eyes can be used to reduce the glare. Fig. 8 is a longitudinal sectional view of an essential part of the refrigerator 1〇1 in which the light-emitting diode 2 is disposed on the inner wall of the present embodiment. Further, the globe 7 can be made of a transparent plate and has a concavo-convex shape. Thereby, since the optical axis of the hair-light body 2 can be diffused by the concavo-convex shape, it is possible to reduce the light entering the eye-eye X > (the lampshade 7 is semi-transparent and can also achieve the effect of diffusing light. Further, as shown in the refrigerator 1 to 2 shown in FIG. 9, the light-emitting body 2 of the illuminating device 2 is arranged in the front-rear direction in the ceiling wall of the refrigerating chamber 13 in a plurality of cases. When the polar body 2 is disposed below the ceiling wall of the refrigerating chamber 13 in the axial direction in the wrong direction, since the directivity is directional, the range of illumination is about 3 () with respect to the optical axis, and therefore even the light-emitting diode 2 The optical axis is placed in the wrong direction in the direct direction, and the light is easily incident on the user's eyes from above. Fig. 9 is a view showing the case where the light-emitting diode 2 is placed in the ceiling wall of the refrigerator 1〇2 in the third embodiment. The longitudinal cross-sectional view of the light-emitting diode 2 is arranged such that the light-emitting diode 2 is axially vertically downward. Even if the shade 7 is formed into a concave-convex structure that diffuses light, light can easily enter both eyes. In this case, from the inside of the user's eyes, the light-emitting diode (2) The light-emitting diodes 2 that are close to the user are alternately rotated in the first and second embodiments, thereby reducing the glare and reducing the amount of power consumption. The thickness of the polar body 2 and the light-emitting diode 2 disposed on the front side is set to be higher toward the front side from the inside, and the illuminance is lower, thereby reducing the visual burden on the user. The transverse cross-sectional view of the main part of the refrigerator 103 in which the light-emitting diode 2 is disposed on the side wall according to the third embodiment. Specifically, the cold chamber 11 and the cold storage chamber 13 are separated from each other by the freezer compartment 11 and the refrigerating compartment 13 A cross-sectional view of the refrigerator 103 formed by the partition wall 50 of the refrigerating compartment 13. 22201139958 As shown in the figure, in the refrigerator 103, two refrigerating compartment illuminating devices 20a' having the mounting substrate 1 are disposed, and the mounting substrate 1 is mounted with plural The light-emitting diode 2' is opened and closed by detecting the opening and closing of the refrigerator compartment door 25 at the front opening portion of the refrigerator compartment 13. When the refrigerator compartment door 25 is opened, the light-emitting diode 2 is turned on. Further, in the refrigerator 103, the refrigerator 103 is further disposed. Freezer compartment lighting with mounting substrate 2b, the plurality of light-emitting diodes 2 are mounted on the mounting substrate 1, and when the freezing chamber door 25a is opened, the light-emitting diodes 2 are lit. Specifically, the scaffolding of the left and right side walls of the refrigerating chamber 13 In front of 13a, a refrigerating compartment lighting device 2a is provided, and in front of the scaffolding la la on the left side wall of the freezing compartment 11, a freezing compartment lighting device 20b is provided. When only the refrigerating compartment door 25 of the refrigerating compartment 13 is opened, only The two refrigerating compartment lighting devices 20a are gradually extended in the lighting period as in the first and second embodiments, and after the pre-twisting period, the lighting control is performed to continue the continuous lighting state. When only the freezing compartment door 25a is opened, Similarly, only the freezing compartment lighting device 2〇b is gradually extended for a period of time, and after a predetermined period of time elapses, lighting control is continued to continue the continuous lighting state. In the case where the refrigerating compartment lighting device 20a is disposed at two different positions of the side wall and the ceiling wall, the lighting control is performed, and the refrigerating compartment lighting device 20a disposed at a different position is synchronized to gradually extend the lighting period. After the predetermined period of time, lighting control is performed to continue the continuous lighting state. By illuminating the lighting device more smoothly, the lighting can be smoothly illuminated more smoothly, and the visual burden of the user can be reduced, and the unnecessary door opening state caused by the glare or the light reflection can be reduced, and the refrigerator can be suppressed. 〇 The total amount of electricity consumed has increased. 23 201139958 Industrial Applicability As described above, the refrigerator of the present invention can of course be applied to a household refrigerator using a light-emitting diode illumination, and can widely use a threshold device such as a threshold. Equipment machine using LED illumination. [Simple description of the drawing] The 1 2 3 4 figure is a sectional view of the refrigerator in which the type of the crucible is implemented. Fig. 2 is a longitudinal sectional view of an essential part of an embodiment of the 匕 illumination device. The figure shows a block diagram of a control splitting function that does not implement type i. The first requirement is a flowchart showing an example of the operation of the control device of the implementation type i. Fig. 5 is a timing chart showing an example of the operation of the control device for implementing the configuration. Fig. 6 is a flow chart showing an example of the operation of the control device of the embodiment 2. The top system shows a time chart of an example of the operation of the control device of the second embodiment. Fig. 8 is a longitudinal sectional view of an essential part of a refrigerator in which the light-emitting diodes are disposed on the inner wall of the embodiment. Fig. 9 is a longitudinal sectional view of an essential part of the ice phase in which the light-emitting diode is disposed on the ceiling wall. In the third embodiment, a cross-sectional view of an essential part of the ice box in which the light-emitting diodes are disposed on the side wall is provided. [Main component symbol description] 6... Spacer 7... Lamp cover 8... Refrigerator side wall 9... External arm 10... Freezer compartment fan 24 1 ... Mounting substrate 2 2... Light-emitting diode 3 ··. Power-on terminal 4 ... Heat-dissipating plate 5 ... recessed portion 201139958 11...freezer compartment 22...temperature detecting section 11 a...shelf 24...door opening and closing detecting section 12...damper 25...refrigerator door 13... Freezer compartment 25a...freezer compartment door 13a...shelf 26...controller 14...compressor fan 28...substrate storage section 15...machine compartment 30...microcomputer 16... Compressor 31...Illumination device drive circuit 17...electrical wide 32...freezer fan drive circuit 18...cooler 33...compressor fan drive circuit 19...automatic ice maker 34... Solenoid valve drive circuit 20...illumination device 35...automatic ice machine drive circuit 20a...refrigerator room illumination device 36...timer 20b...freezer compartment illumination device 50...partition wall 21... Ice box 100, 101, 102, 103... refrigerator 25