【正文】 ，通過對振蕩電路 振蕩 頻率的調(diào)節(jié)，使其與延時電路相協(xié)調(diào)，從而準確控制出水時間和顯示時間。 畢業(yè)設(shè)計用紙 共 25 頁 第 1 頁 中文摘要 飲水對健康起著十分重要的作用，然而，目前市場上大量流行的桶裝水因為保質(zhì)周期、送水環(huán)節(jié)的人工操作污染、飲水機內(nèi)長期菌體有機物堆積等問題而正被另一種新興的水取代 ——自動投幣售水機。 自動售水機 電路起到控制作用，是 自動售水機的 大腦 ，也是整個機臺的核心部分，它決定了整臺水機運行的正常與否 、 使用的壽命長短 、 擁有智能 和 穩(wěn)定的電控技術(shù) 。對振蕩頻率的調(diào)節(jié)分為粗調(diào)和微調(diào)， 以 保證其 準確性。 關(guān)鍵詞： 自動售水機 ； 時間控制 ； 振蕩頻率 ； 鎖存 CCZZIILLII 畢業(yè)設(shè)計用紙 共 25 頁 第 2 頁 ABSTRACT Drinking water is playing very important role to health, but, large amount of barrelled popular water the automation is being substituted by another one kind of water new and developing throwing in coins selling water machine because the hand operation guaranteeing the quality period , giving water a link contaminates , the longterm thallus anic congeries waits for problem within drinking water machine at present on the marketplace. Arrive at control action starting from when the automation sells the water electromechanical road, cerebrum being that the automation sells water machinebe also entire machine core part, its working lifespan length that regularity uses or not, own intelligence and stable electricity having decided to rectify platform water machine charge a technology. That design is centering on duration control , measure by checking oscillating circuit oscillating frequency39。s accuracy. The deferred element stretches a foot in coordination with using the chip lock exist function counting, to unite the road controlling the entire electromechanical. Keywords: The automation sells water machine， duration control， oscillating frequency， lock exist 畢業(yè)設(shè)計用紙 共 25 頁 第 3 頁 目 錄 第一章自動售水機的介紹 ................................................................................. 4 自動售水機的背景及意義 ........................................................................... 4 自動售水機的應用 ....................................................................................... 4 第二章總體方案設(shè)計 ......................................................................................... 6 設(shè)計要求與功能實現(xiàn) ................................................................................... 6 設(shè)計框圖 ....................................................................................................... 6 主要芯片功能介紹 ....................................................................................... 6 555 定時器 .......................................................................................... 6 引腳圖 ................................................................................ 10 CD4553 引腳及功能 ......................................................................... 10 ............................................................................................... 11 繼電器介紹 ................................................................................................ 13 繼電器的 功能 .................................................................................. 13 繼電器的運用 .................................................................................. 13 第三章單元電路設(shè)計 ....................................................................................... 14 脈沖信號發(fā)生電路 ..................................................................................... 14 延時電路 ..................................................................................................... 14 數(shù)據(jù)鎖存、計數(shù)器清零電路 ..................................................................... 15 譯碼與顯示電路 ......................................................................................... 16 第 四 章電路的安裝與調(diào)試 ............................................................................... 17 電路的安裝 ................................................................................................ 17 安裝步驟 .............................................................