四川白光投光燈批發(fā) 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="雖然功率不大的單個用電器功率因素低一點對電網(wǎng)的影響不大，但晚上大家點燈，同類負載太集中，會對電網(wǎng)產(chǎn)生較嚴重的污染。對于30瓦~40瓦的LED驅(qū)動電源，據(jù)說不久的將來，也許會對功率因素方面有一定的指標要求。4.驅(qū)動方式現(xiàn)在通行的有兩種:其一是"><meta name="keywords" content="四川白光投光燈批發(fā),投光燈"><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" 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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>四川白光投光燈批發(fā),投光燈</p><p><span>***更新：</span>2021-02-01 02:06:54</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="me0yuso" 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: </span>021-54169416</p><p><span>地址: </span>陶干路1199號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ogmayeu" class="page-proshow02"><p class="title">詳細說明</p><div id="ewcg4m4" class="box"><p><p style="text-indent:25px"><span style="display:none;"></span>雖然功率不大的單個用電器功率因素低一點對電網(wǎng)的影響不大，但晚上大家點燈，同類負載太集中，會對電網(wǎng)產(chǎn)生較嚴重的污染。對于30瓦~40瓦的LED驅(qū)動電源，據(jù)說不久的將來，也許會對功率因素方面有一定的指標要求。4. 驅(qū)動方式現(xiàn)在通行的有兩種:其一是一個恒壓源供多個恒流源，每個恒流源單獨給每路LED供電，四川白光投光燈批發(fā)。這種方式，組合靈活，一路LED故障，不影響其他LED的工作，但成本會略高-一點。另一種是直接恒流供電，LED串聯(lián)或并聯(lián)運行。它的優(yōu)點是成本低一點，但靈活性差，四川白光投光燈批發(fā)，還要解決某個LED故障，四川白光投光燈批發(fā)，不影響其他LED運行的問題。這兩種形式，在-段時間內(nèi)并存。<span style="display:none;"><span style="display:none;"></span></span>3、LED燈珠本身的質(zhì)量問題，也可以造成LED燈珠不亮，因為有些LED燈珠芯片存在漏電。四川白光投光燈批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川白光投光燈批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269781448710938/2265050.png"></div><p style="text-indent:25px">LED支架類別 1)、支架的作用:用來導電和支撐 2)、支架的組成:支架由支架素材經(jīng)過電鍍而形成，由里到外是素材、銅、鎳、銅、銀這五層所組成;3)、支架的種類:帶杯支架做聚光型，平頭支架做大角度散光型的1、直插式A、2002 杯/平頭:此種支架一般做對角度、亮度要求不是很高的材料，比其他支架要短10mm左右。Pin 間距為2. 28mm;B、2003杯/平頭:一般用來做φ 5以上的Lamp , 外露pin長為+29mm、-27mm，Pin 間距為2.54mm;C、2004杯/平頭:用來做用來做φ 3左右的Lamp， Pin長及間距同2003支架;D、2006:兩極均為平頭型，用來做閃爍、兩極均為平頭型，用來做閃爍Lamp，固IC，焊多條線;F、2009:用來做雙色的Lamp,杯內(nèi)可固兩顆，三支pin腳控制極性;G、2009-8/3009:用來做三色的Lamp，杯內(nèi)可固三顆晶片，四支pin腳。湖南飛利浦投光燈性能汽車用白熾燈不耐震動撞擊、易損壞、壽命短，需要經(jīng)常更換。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川白光投光燈批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269782039189453/4436063.png"></div><p style="text-indent:25px">燈桿破壞面抵抗矩W的計算點Р到燈桿受到的電池板作用荷載F作用線的距離為PQ=[5000+168+6）/tan16o]x Sin16o = 1545mm =1.545m所以，風荷載在燈桿破壞面上的作用矩M = F1.545。根據(jù)27m/s的設(shè)計zui大允許風速，2×30W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)= 1.330 = 949N所以，M= F1.545 = 9491.545 = 1466N.m根據(jù)數(shù)學推導，圓環(huán)形破壞面的抵抗矩W= 幾×(3r2o＋3r62＋83）。上式中，r是圓環(huán)內(nèi)徑，à是圓環(huán)寬度。破壞面抵抗矩W= T×(3r26+3r62+63）一T×（3×842×4十3×84×42＋43）= 88768mm3 =88.76810一6 m3風荷載在破壞面上作用矩引起的應(yīng)力=M/W= 1466188.768×10一6）=16.5106pa =16.5 Mpa<215Mpa其中，215Mpa是Q235鋼的抗彎強度。<span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"><span style="display:none;"><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></span></span></span></span></p><p style="text-indent:25px">太陽能電池板光效達到127Wp/m2，效率較高，對系統(tǒng)的抗風設(shè)計非常有利;燈頭部分以1W白光LED和1W黃光LED集成于印刷電路板上排列為一定間距的點陣作為平面發(fā)光源?？刂葡湎潴w以不銹鋼為材質(zhì)，美觀耐用;控制箱內(nèi)放置免維護鉛酸蓄電池和充放電控制器。本系統(tǒng)選用閥控密封式鉛酸蓄電池，由于其維護很少，故又被稱為“免維護電池”，有利于系統(tǒng)維護費用的降低;充放電控制器在設(shè)計上兼顧了功能齊備(具備光控、時控、過充保護、過放保護和反接保護等)與成本控制，實現(xiàn)很高的性價比。交通信號燈主要用超高亮度紅、綠、黃色LED,因為采用LED信號燈既節(jié)能，可靠性又高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川白光投光燈批發(fā),投光燈" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637269782155068360/7868258.png"></div><p style="text-indent:25px">我們經(jīng)常會碰到LED不亮的情況，封裝企業(yè)、應(yīng)用企業(yè)以及使用的單位和個人，都有可能碰到，這就是行業(yè)內(nèi)的人說的死燈現(xiàn)象。究其原因不外是兩種情況:其一，LED的漏電流過大造成PN結(jié)失效，使LED燈點不亮，這種情況一般不會影響其它的LED燈的工作。其二，LED燈的內(nèi)部連接引線斷開，造成LED無電流通過而產(chǎn)生死燈，這種情況會影響其它的LED燈的正常工作，原因是由于LED燈工作電壓低(紅黃橙﹐LED工作電壓1.8V-2.2V,藍綠白LED工作電壓2.8-3.2V）。顯示屏價格比重的70%，所以說LED器件可以決定LED顯示屏質(zhì)量的優(yōu)劣。江西專業(yè)投光燈led</p><p style="text-indent:25px">盡量不要買那些的電源。以防止因電源電流過大將Led燈珠擊穿而造成燈珠不亮燈具。四川白光投光燈批發(fā)</p><p style="text-indent:25px">―從發(fā)光強度角分布圖來分有三類:(1）高指向性。一般為尖頭環(huán)氧封裝，或是帶金屬反射腔封裝，且不加散射劑。半值角為5°～20°或更小，具有很高的指向性，可作局部照明光源用，或與光檢出器聯(lián)用以組成自動檢測系統(tǒng)。(2）標準型。通常作指示燈用，其半值角為20°~45°。(3）散射型。這是視角較大的指示燈，半值角為45°~90°或更大，散射劑的量較大。3、按發(fā)光二極管的結(jié)構(gòu)分―按發(fā)光二極管的結(jié)構(gòu)分有全環(huán)氧包封、金屬底座環(huán)氧封裝、陶瓷底座環(huán)氧封裝及玻璃封裝等結(jié)構(gòu)。四川白光投光燈批發(fā)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3100882.html</p></div></div></div></div></div><div id="yemcsyw" class="page-right twoColRt"><div id="mweka4o" class="box01 margin10 clearfix"><h3><a 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