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為什么工控主板的價格比商用主板高?
2016-09-25 14:06:19 新聞來源:日本黃色視頻免費:深圳市澤創偉業科技有限公司
為什么工(gong)控主(zhu)板(ban)(ban)的價格(ge)比商用主(zhu)板(ban)(ban)高?工(gong)控主(zhu)板(ban)(ban)相對商用主(zhu)板(ban)(ban)好在哪?相信很多用戶朋友都有這個疑問,下面我(wo)們就從主(zhu)板(ban)(ban)元器件的用料與設計方面分析下:
商用主板:
商用(yong)主(zhu)板(ban)由于其更(geng)新換(huan)代的(de)速度(du)比較(jiao)快(kuai),且對產(chan)(chan)品(pin)(pin)(pin)的(de)穩(wen)定(ding)性及使(shi)用(yong)環(huan)境(jing)的(de)要(yao)求(qiu)(qiu)(qiu)比較(jiao)低,故此(ci)追求(qiu)(qiu)(qiu)的(de)是(shi)產(chan)(chan)品(pin)(pin)(pin)的(de)時效性,以(yi)及本身(shen)產(chan)(chan)品(pin)(pin)(pin)的(de)市場定(ding)位,對元器件選擇要(yao)求(qiu)(qiu)(qiu)上一般只需滿足系統運行(xing)2到3年的(de)使(shi)用(yong)壽命即可(3年之(zhi)后大部分已經更(geng)新換(huan)代了(le)),元器件的(de)用(yong)料上使(shi)用(yong)普通級別(bie)的(de)就可以(yi)了(le)。例如電容,商用(yong)主(zhu)板(ban)都是(shi)大量(liang)使(shi)用(yong)普通的(de)電解電容,一是(shi)出于商用(yong)市場產(chan)(chan)品(pin)(pin)(pin)的(de)使(shi)用(yong)考慮,二(er)是(shi)為(wei)降(jiang)低主(zhu)板(ban)的(de)成本考慮。
工控主板:
1)工控主(zhu)板的(de)元器件
工控主板選料會選用經過長時間(jian),高(gao)(gao)要求驗(yan)證(zheng)元(yuan)器件(jian),用以(yi)保證(zheng)產(chan)品在惡劣(lie)條件(jian)下(xia)高(gao)(gao)可靠性要求。例如(ru)(ru)工控主(zhu)(zhu)板(ban)的元(yuan)器件(jian)需要適應寬溫(wen)環境(-20℃~60℃),如(ru)(ru)固態電容器,保證(zheng)在惡劣(lie)環境下(xia)(壽命期內永久開(kai)機、氣候惡劣(lie)、潮濕、振(zhen)動、多塵、輻(fu)射、高(gao)(gao)溫(wen)等(deng)(deng)等(deng)(deng))正常工作;主(zhu)(zhu)板(ban)元(yuan)器件(jian)需要耐高(gao)(gao)溫(wen)、抗(kang)潮濕等(deng)(deng)等(deng)(deng)。
2)工控(kong)主板(ban)的電容
工(gong)控(kong)(kong)(kong)主(zhu)(zhu)板(ban)采(cai)用(yong)(yong)的(de)(de)(de)(de)(de)是(shi)(shi)高質(zhi)量的(de)(de)(de)(de)(de)貼片式(shi)的(de)(de)(de)(de)(de)固態電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)、鉭(tan)、陶瓷電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),即使(shi)使(shi)用(yong)(yong)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),對其(qi)品質(zhi)、性能及壽(shou)命(ming)要求也(ye)遠高于商用(yong)(yong)產品,現在的(de)(de)(de)(de)(de)工(gong)控(kong)(kong)(kong)主(zhu)(zhu)板(ban)都(dou)基(ji)本(ben)上(shang)采(cai)用(yong)(yong)固態電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),特別中高端的(de)(de)(de)(de)(de)工(gong)控(kong)(kong)(kong)主(zhu)(zhu)板(ban)。商用(yong)(yong)主(zhu)(zhu)板(ban)基(ji)本(ben)都(dou)是(shi)(shi)大(da)(da)量采(cai)用(yong)(yong)針腳式(shi)的(de)(de)(de)(de)(de)大(da)(da)電(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),因為大(da)(da)電(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)成(cheng)(cheng)本(ben)低(di)、容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)值大(da)(da)一(yi)個(ge)(ge)可以頂多個(ge)(ge)貼片或坦(tan)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)。從性質(zhi)來說,電(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)穩定性不及鉭(tan)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)、陶瓷電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)高,壽(shou)命(ming)不及它們長,耐高溫程度不及它們好(hao)。貼片式(shi)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)比(bi)針腳式(shi)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)更(geng)加穩定。從價(jia)格上(shang),鉭(tan)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)比(bi)普通的(de)(de)(de)(de)(de)電(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)要貴(gui),且由于鉭(tan)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)量較小,使(shi)用(yong)(yong)在主(zhu)(zhu)板(ban)上(shang)時,需要使(shi)用(yong)(yong)更(geng)多數量的(de)(de)(de)(de)(de)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),單單鉭(tan)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)成(cheng)(cheng)本(ben)就是(shi)(shi)電(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)幾十倍,這也(ye)是(shi)(shi)導致工(gong)控(kong)(kong)(kong)主(zhu)(zhu)板(ban)比(bi)商用(yong)(yong)主(zhu)(zhu)板(ban)成(cheng)(cheng)本(ben)價(jia)格高的(de)(de)(de)(de)(de)原因之一(yi)。
3)工控(kong)主板(ban)的PCB
商用(yong)主(zhu)板(ban)采用(yong)的(de)(de)(de)是(shi)4層(ceng)PCB設計(ji),一般的(de)(de)(de)PCB線(xian)路板(ban)分(fen)有四層(ceng),最(zui)上和最(zui)下的(de)(de)(de)兩層(ceng)是(shi)信(xin)號層(ceng),中間兩層(ceng)是(shi)接(jie)地層(ceng)和電(dian)源(yuan)層(ceng),將接(jie)地和電(dian)源(yuan)層(ceng)放在中間。工業主(zhu)板(ban)采用(yong)的(de)(de)(de)是(shi)6層(ceng)以上PCB線(xian)路板(ban)設計(ji),其設計(ji)是(shi)為了加強(qiang)主(zhu)板(ban)的(de)(de)(de)抗電(dian)磁干(gan)擾、電(dian)磁兼容(rong)能力,增強(qiang)主(zhu)板(ban)的(de)(de)(de)穩定性等等。
4)工控主板的壽命(ming)
與商用主(zhu)板2到3年使用壽命不同,大多數(shu)的工控(kong)主(zhu)板壽命要求在3年以上,部分高品質的工控(kong)主(zhu)板,使用壽命甚(shen)至達到5—7年。