吉林戶外LED電話歡迎來(lái)電上海先盛照明電器供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 而LED基板與PCB之間的熱阻一般是℃/w（鋁基板的熱阻一般小于℃/w),那么Tj與PCB板之間溫差為8+℃。燈具散熱材料，一般壓鑄鋁（鋁合金的熱阻一般*為℃/w)，吉林戶外LED電話，那么燈"><meta name="keywords" content="吉林戶外LED電話,LED"><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/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_zmytdj/">專門(mén)用途燈具</a>?<a href="http://www.cdcfah.com/cp/third-zmytdj_leddengju/">LED燈具</a>?吉林戶外LED電話歡迎來(lái)電上海先盛照明電器供應(yīng)</p><div id="2sgdaho" class="leftbox clearfix"><h1>吉林戶外LED電話歡迎來(lái)電上海先盛照明電器供應(yīng)</h1><div id="vzro22y" class="proBig"><div id="cmjg2fo" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402595791627408/1170035.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="xmjlqka" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402595791627408/1170035.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3u3bi8v" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>吉林戶外LED電話,LED</p><p><span>***更新：</span>2020-12-18 01:09:12</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="fu8fheq" 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(hào)</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="irxum82" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="cg3nuwt" class="box"><p><p> 而LED基板與PCB之間的熱阻一般是℃/w（鋁基板的熱阻一般小于℃/w),那么Tj與PCB板之間溫差為8+℃。燈具散熱材料，一般壓鑄鋁（鋁合金的熱阻一般*為℃/w)，吉林戶外LED電話，那么燈殼到LEDPN結(jié)之間的溫差約為：（8+）=℃?，F(xiàn)在問(wèn)題是：燈殼Tscase與燈周邊環(huán)境溫度Ta的溫度差多少？這是由燈具的系統(tǒng)熱阻決定的。加入用于熱失散的燈殼接觸環(huán)境空間的面積為A，此面積大小就決定了兩者之間的溫差。當(dāng)A趨于無(wú)窮大時(shí)，燈殼與環(huán)境等溫。這是做不到的。日本西鐵城等公司，測(cè)算出散熱器面積與Tj的關(guān)系曲線。一個(gè)，要使Tj從100℃下降到80℃，散熱器與空氣接觸面積要增加60平方里面以上，由此可估算：60cm2/；每增加1W電功率的LED，若用60平方厘米以上的散熱器時(shí)，其Tj結(jié)溫將下降20℃。計(jì)算：那么用約用℃。那么，燈具系統(tǒng)熱阻Rthsystem=20/℃/w；于是對(duì)燈具施加，在Ta=25℃時(shí)，燈殼上的溫度應(yīng)該是：Tscase=25℃+℃；此時(shí)，通過(guò)前面的計(jì)算，我們可以知道LEDPN結(jié)溫是：Tj=45+℃；PN結(jié)溫Tj比起光效值100lm/WTj=25℃的時(shí)候，高了（）=℃；也就是一個(gè)100lm的LED光通量較Tj=25℃的時(shí)候要低：；100個(gè)LED等于比Tj=25℃時(shí)候，低；由此可以得知燈具的熱效率=（1-735/10000)=，吉林戶外LED電話，吉林戶外LED電話。所以：三個(gè)部分疊加后。上海先盛照明電器有限公司致力于提供LED，有想法的不要錯(cuò)過(guò)哦！吉林戶外LED電話</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林戶外LED電話,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402595791627408/1170035.png"></div>據(jù)不徹底統(tǒng)計(jì)分析，現(xiàn)階段銷售市場(chǎng)上仍是存在一些LED面板燈有側(cè)邊緣透光的問(wèn)題出現(xiàn)，那樣的難題不但是面板燈的品質(zhì)可想而知，并且還會(huì)危害面板燈的美觀大方性和質(zhì)量，因此，下邊來(lái)分析一下LED面板燈側(cè)漏光線難題及解決方案。 <p> 首先，必須弄清楚LED面板燈怎么會(huì)涌起側(cè)漏光線難題呢?關(guān)鍵有下列幾個(gè)因素： </p> <p> 1. 開(kāi)展安裝時(shí)沒(méi)有扭緊，沒(méi)有擰結(jié)子些。 </p> <p> 2. 內(nèi)嵌燈源部位有難題，導(dǎo)致燈源亮度過(guò)強(qiáng)，好像側(cè)邊透光。 </p> <p> 3. 在走向市場(chǎng)的那時(shí)候，必須根據(jù)質(zhì)量檢驗(yàn)，從視覺(jué)到表層必須查驗(yàn)發(fā)亮狀況是不是優(yōu)良。 </p> <p> 對(duì)于上面幾個(gè)問(wèn)題，處理LED面板燈側(cè)漏光線難題解決方案： </p> <p> <br /> </p> <p> <br /> 四川大功率LED現(xiàn)貨上海先盛照明電器有限公司致力于提供LED，歡迎新老客戶來(lái)電！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林戶外LED電話,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596297770001/2735169.png"></div><p>雙隔離安全型LED投光燈產(chǎn)品名稱：雙隔離安全型LED工礦燈（吊燈）產(chǎn)品關(guān)鍵詞：雙隔離、安全型、內(nèi)置雙燈、進(jìn)口芯片、防眩透鏡、帶熱保護(hù)隔離型防水驅(qū)動(dòng)、高功率因數(shù)、AI防水風(fēng)扇防蚊蟲(chóng)、全鋁燈體。產(chǎn)品名稱：雙隔離安全型LED投光燈光源套件產(chǎn)品關(guān)鍵詞：雙隔離、安全型、內(nèi)置雙燈、進(jìn)口芯片、防眩透鏡、帶熱保護(hù)隔離型防水驅(qū)動(dòng)、高功率因數(shù)、AI防水風(fēng)扇防蚊蟲(chóng)、全鋁燈體。光源參數(shù)：原裝SAMSUNG芯片，3535燈珠、純金線、EMC支架、110lm/w、顯色指數(shù)≧80。光源防護(hù)：進(jìn)口PC料模壓成型透鏡罩，配有防護(hù)網(wǎng)。雙隔離安全型LED工礦燈（吊燈）產(chǎn)品關(guān)鍵詞：雙隔離、安全型、內(nèi)置雙燈、進(jìn)口芯片、防眩透鏡、帶熱保護(hù)隔離型防水驅(qū)動(dòng)、高功率因數(shù)、AI防水風(fēng)扇防蚊蟲(chóng)、全鋁燈體。技術(shù)特點(diǎn)：1、標(biāo)稱功率：150W（內(nèi)置雙燈）。本產(chǎn)品提供一路50W和一路100W兩路輸出線，可以并聯(lián)為150W，實(shí)現(xiàn)50W/100W/150W三檔功率組合，場(chǎng)館LED防震節(jié)能燈，適合外接三路線控分光器或遙控分光器，也適合分別外接聲控、光控、時(shí)控、紅外、微波感應(yīng)等自控開(kāi)關(guān)，工廠LED防震節(jié)能燈，或分出一路接后備電源提供應(yīng)急照明。2、觸電防護(hù)：雙隔離型（安全，LED防震節(jié)能燈，不漏電）。本產(chǎn)品采用隔離式燈具。</p><p> 現(xiàn)在LED燈具的光效=。疑問(wèn)：不同燈珠廠給出的參數(shù)表格不一致，難以按照以上公式計(jì)算；燈珠模組排列是否會(huì)導(dǎo)致光效衰減？如何知道燈具外殼溫度，推算出Tj溫度？LED燈具光效與LED光效的區(qū)別（精）-百度文庫(kù)在線互動(dòng)式文檔分享平臺(tái)，在這里，您可以和千萬(wàn)網(wǎng)友分享自己手中的文檔，全文閱讀其他用戶的文檔，同時(shí)，也可以利用分享文檔獲取的積分下載文檔wenku./view/LED燈珠的晶片大小與光效LED能承受的電流，取決于：晶片大小，一般用mil（1mil=1/1000inch=)稱呼大小，舉例：SMD2835的三安芯片，一般做做10x30mil或者17x34mil。LED的燈珠使用，需要留有余量，一般需要比額定電流低20%左右。LED燈珠的評(píng)價(jià)一般按光效來(lái)計(jì)算，光通量/功率=光效，越高越貴。現(xiàn)在的LED光效一般都能達(dá)到100-150lm/W,甚至達(dá)到190lm/W。LED燈珠的光效，其實(shí)是跟驅(qū)動(dòng)電流一定程度上成反比，意思是驅(qū)動(dòng)電流約靠近額定電流，其實(shí)光效是越低的。一般燈珠廠標(biāo)注的高光效，都是在比較低的額定電流下測(cè)定的。燈珠色溫.，相關(guān)色溫ColorTemperature:色溫是照明光學(xué)中用于定義光源顏色的一個(gè)物理量。即把某個(gè)黑體加熱到一個(gè)溫度，其發(fā)射的光的顏色與某個(gè)光源所發(fā)射的光的顏色相同時(shí)。上海先盛照明電器有限公司是一家專業(yè)提供LED的公司，有想法可以來(lái)我司咨詢！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林戶外LED電話,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596721236634/4903425.png"></div><p> 本篇文章介紹如何判斷燈珠類型，燈珠的串并數(shù)，以及判斷燈珠板的額定輸入電壓和電流；另外，還介紹了市面上常見(jiàn)的LED驅(qū)動(dòng)器的類型，參數(shù)規(guī)格，以及如何配套好你想要的燈珠板。LED燈珠L(zhǎng)ED燈珠的類型，從草帽燈珠，食人魚(yú)這些都已經(jīng)消失的封裝開(kāi)始，到SMD，COB，CSP，日新月異，還需要適時(shí)補(bǔ)充。LED燈珠的組成LED燈珠由以下幾個(gè)部分組成：晶片，基板支架，導(dǎo)線，熒光粉，光學(xué)透鏡，支架塑料，如下圖：也有CSP就是沒(méi)有導(dǎo)線的對(duì)比，如：發(fā)光原理從物理學(xué)角度來(lái)理解：當(dāng)電流通過(guò)晶片時(shí)，N型半導(dǎo)體內(nèi)的電子與P型半導(dǎo)體內(nèi)的空穴在發(fā)光層劇烈地碰撞復(fù)合產(chǎn)生光子，以光子的形式發(fā)出能量（即大家看見(jiàn)的光）。不同材料的半導(dǎo)體會(huì)產(chǎn)生不同顏色的光色，如紅光、綠光、藍(lán)光等等。所以，沒(méi)有熒光粉的，直接就是晶片本身發(fā)光顏色，一般彩色燈珠都是這種類型。但是，到目前為止還沒(méi)有任何一種半導(dǎo)體材料能發(fā)出白色的光。這里就需要提到一位諾貝爾獎(jiǎng)獲得者——中村修二博士。他發(fā)明出了藍(lán)光LED，由此也為白光LED奠定了一定的基礎(chǔ)。基于這項(xiàng)重大的貢獻(xiàn)在2014年授予他諾貝爾物理學(xué)獎(jiǎng)。至于藍(lán)光LED是如何轉(zhuǎn)變?yōu)榘坠釲ED，大的原因在于晶片中多了一層熒光粉。上海先盛照明電器有限公司致力于提供LED，歡迎您的來(lái)電哦！安徽品質(zhì)LED廠家批發(fā)價(jià)</p><p style="text-indent:25px">上海先盛照明電器有限公司LED服務(wù)值得放心。吉林戶外LED電話</p><p>隨著近幾年LED應(yīng)用的發(fā)展，各種替代傳統(tǒng)熒光燈的LED照明產(chǎn)品快速發(fā)展并不斷完善。LED日光燈管產(chǎn)品，性能不斷提升，價(jià)格不斷下降，已經(jīng)達(dá)到替代傳統(tǒng)熒光燈管的地步。LED格柵燈是我們?nèi)粘W(xué)習(xí)、工作和生活的常見(jiàn)照明燈具之一。它既節(jié)能又光亮，給我們帶來(lái)了極大的便利。今期小編就和大家分享關(guān)于LED格柵燈的安裝和注意事項(xiàng)問(wèn)題。LED格柵燈安裝說(shuō)明取下燈盤(pán)上之格柵反光罩，注意取格柵反光罩時(shí)輕拿輕放，不要刮傷，將燈具本體放置已預(yù)留好的天花龍骨上。放置時(shí)請(qǐng)注意四邊的位置，讓其燈具四邊完全擱置龍骨條上，以免燈具掉落，注意當(dāng)燈具較重時(shí)，請(qǐng)用線絲將燈具吊裝在天花板上。將電源線從出線孔穿入，正確地接于接線端子臺(tái)處，請(qǐng)注意L標(biāo)識(shí)處接火線，N標(biāo)識(shí)處接零線，地標(biāo)識(shí)處接地線。正確地裝入光源，裝光源時(shí)請(qǐng)注意將光源卡入燈頭槽內(nèi)，聽(tīng)到啪的一聲后，表示光源與燈頭銅片處接觸良好。將格柵反光罩的吊帶一端栓在燈具本體吊帶孔內(nèi)，以方便后續(xù)更換光源，將格柵反光罩卡入燈具本體內(nèi)。注意彈片須與格柵反光罩良好地接觸，以免格柵反光罩脫落。吉林戶外LED電話</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2446781.html</p></div></div></div></div></div><div id="cbdf2b3" class="page-right twoColRt"><div id="ke2olnu" class="box01 margin10 clearfix"><h3><a 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