山東led三防燈歡迎咨詢上海先盛照明電器供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="LED的光衰 1、LED冷光源之說 LED靠電子在能帶間的躍遷來發(fā)光，它光譜單一，不含紅外部分，山東led三防燈，不同于傳統(tǒng)的固體熱致發(fā)光光源的白熾燈。因此將LED稱作“冷”光源，其實LED芯片*能將不到10%的電能轉(zhuǎn)化"><meta name="keywords" content="山東led三防燈,三防燈"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" 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href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="kq3fla4" class="twoCol"><div id="lelsubv" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_zmgy/">照明工業(yè)</a>?<a href="http://www.cdcfah.com/cp/second-zmgy_swzmdj/">室外照明燈具</a>?<a href="http://www.cdcfah.com/cp/third-swzmdj_toushedeng/">投射燈</a>?山東led三防燈歡迎咨詢上海先盛照明電器供應(yīng)</p><div id="gqif3wy" class="leftbox clearfix"><h1>山東led三防燈歡迎咨詢上海先盛照明電器供應(yīng)</h1><div id="3fb3cjy" class="proBig"><div id="3ht7zbd" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637327891678251953/6378608.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2rya7w8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637327891678251953/6378608.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="kd8t2po" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>山東led三防燈,三防燈</p><p><span>***更新：</span>2021-01-27 10:08:00</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="rgdvnzb" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海先盛照明電器有限公司</a></p><p><span>聯(lián)系人：</span>顧勇軍</p><p><span>郵箱: </span>522366548@qq.com</p><p><span>電話: </span>13301861712</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-54169416</p><p><span>地址: </span>陶干路1199號</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="g2q33yv" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="m0oykmt" class="box"><p><p style="text-indent:25px">LED的光衰 1、LED冷光源之說 LED靠電子在能帶間的躍遷來發(fā)光，它光譜單一，不含紅外部分，山東led三防燈，不同于傳統(tǒng)的固體熱致發(fā)光光源的白熾燈。因此將LED稱作“冷”光源，其實LED芯片*能將不到10%的電能轉(zhuǎn)化為光能，其余90%轉(zhuǎn)化為熱能。而且這些熱能的大部分只能靠傳導(dǎo)散發(fā)出去。因此，良好的散熱設(shè)計對LED的正常使用非常重要。2、LED對工作溫度要求嚴(yán) LED的芯片對溫度異常敏感，這也是半導(dǎo)體的共性，山東led三防燈。從下列的圖及表格中可以看出LED的使用壽命與結(jié)溫(Tj)關(guān)系，山東led三防燈。一般公司沒有完整的開發(fā)團(tuán)隊和足夠的開發(fā)經(jīng)驗以及后續(xù)的供應(yīng)鏈管理能力，很難真正開發(fā)成功。山東led三防燈</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東led三防燈,三防燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637327891678251953/6378608.png"></div><p style="text-indent:25px">根據(jù)27m/s的設(shè)計zui大允許風(fēng)速，2X 30W的雙燈頭太陽能路燈電池板的基本荷載為730N?？紤]1.3 的安全系數(shù)，F(xiàn)=1.3 X 730=949N。所以，M=FX 1.545=949X 1.545= 1466N.m。根據(jù)數(shù)學(xué)推導(dǎo)，圓環(huán)形破壞面的抵抗矩W=π X (3r2δ +3rδ2+ δ3)。上式中，r是圓環(huán)內(nèi)徑，δ是圓環(huán)寬度。破壞面抵抗矩W=π X (3r2δ +3rδ2+ δ3)=π X (3X842X4+3X 84X42+43) =88768mm3=88.768X 10- 6m3風(fēng)荷載在破壞面上作用矩引起的應(yīng)力=M/W=1466/ ( 88.768X 10-6) =16.5X 106pa=16.5Mpa< <215Mpa，其中，215Mpa是Q235鋼的抗彎強度。廣西家用三防燈飛利浦格柵射燈單雙頭GD100經(jīng)久耐用安全節(jié)能:長效使用壽命及優(yōu)越的光效.符合國家CCC強制性標(biāo)準(zhǔn).安全放心。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東led三防燈,三防燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637327890117802734/2151949.png"></div><p style="text-indent:25px">所以，設(shè)計選取的焊縫寬度滿足要求，只要焊接質(zhì)量能保證，燈桿的抗風(fēng)是沒有問題的。2.4控制器: 太陽能充放電控制器的主要作用是保護(hù)蓄電池?；竟δ鼙仨毦邆溥^充保護(hù)、過放保護(hù)、光控、時控與防反接等。蓄電池防過充、過放保護(hù)電壓一般參數(shù)如表1，當(dāng)蓄電池電壓達(dá)到設(shè)定值后就改變電路的狀態(tài)。在選用器件上，目前有采用單片機(jī)的，也有采用比較器的，方案較多，各有特點和優(yōu)點，應(yīng)該根據(jù)客戶群的需求特點選定相應(yīng)的方案，在此不一-一詳述。<span style="display:none;"></span><span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"></span></span></span></span></span><span style="display:none;"><span style="display:none;"></span></span></p><p style="text-indent:25px">若是沒有使用環(huán)氧樹脂等有機(jī)物的場合有發(fā)現(xiàn)無機(jī)碳存在的話，與硫磺或溴素相同、有可能是由外部所入。以上的主要原因是由于有氧氣，濕氣侵入到LED內(nèi)部以及有無機(jī)碳的存在而帶來的一系列的問題，那么我們應(yīng)該如何解決呢?1)在封裝過程中避免使用環(huán)氧類的有機(jī)物，比如固晶膠;2)選擇低透氣性的封裝材料，盡量避免使用橡膠系的硅材料，盡量選用樹脂型的硅材料;3)在制程的過程中盡量采用電漿清洗支架，盡可能的增加烘烤流程。以上分享完畢。據(jù)LED照明產(chǎn)品全球市場的生產(chǎn)與銷售數(shù)據(jù)統(tǒng)計。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東led三防燈,三防燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637327891429326172/1164081.png"></div><p style="text-indent:25px">LED支架作為燈珠的基材是LED燈珠的重要物料，是LED芯片承載物，支架擔(dān)負(fù)著散熱和導(dǎo)電的作用，燈珠的熱阻、初期不良率。有很多SMD斷線的原因是LED支架的設(shè)計缺陷和品質(zhì)缺陷造成。根據(jù)不同的應(yīng)用場合有不同的燈珠類型，其實就是不同的LED支架類型所造成的不同LED類型。具體分類有:直插式支架、貼片式支架、大功率支架、平板式支架和cob支架。LED的支架由于需要導(dǎo)電和導(dǎo)熱，所以會用到金屬作為基材。同時,部分區(qū)域需要做絕緣處理,這就需要用工程塑料。故<span style="display:none;"></span>根據(jù)資料記載, 2010年我國LED平面燈產(chǎn)量約80萬只，總體市場規(guī)模近6億元。批發(fā)三防燈比較便宜</p><p style="text-indent:25px">2013 年一度銷量增，大有代替格柵燈、筒燈之勢，但是現(xiàn)在從市場的反映來看，這個趨勢并沒有得到延續(xù)。山東led三防燈</p><p style="text-indent:25px">一般的LED支架是經(jīng)過金屬沖壓再注塑所形成。LED作為發(fā)光二極管，需要對金屬內(nèi)表面進(jìn)行電鍍處理，銀作為良好的光反射材料，所以一般LED為電鍍銀表面處理。各種不同功率的LED采用的支架材料也不相同，小功率一般采用PPA、中功率一般采用PCT、目前有一些大功率采用EMC材料制作。所有的塑膠材料都有吸水性，所以在LED燈珠生產(chǎn)過程中對支架需要進(jìn)行烘烤的除濕處理。電鍍層的處理是支架的關(guān)鍵點，鍍層厚度和質(zhì)量關(guān)系著后面的光通量、焊接性能。山東led三防燈</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3035570.html</p></div></div></div></div></div><div id="9gipbip" class="page-right twoColRt"><div id="yamegnp" class="box01 margin10 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