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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:草莓視頻污黃:深圳市澤創偉業科技有限公司
為什么工控主(zhu)板(ban)(ban)(ban)的(de)價格(ge)比(bi)商(shang)用主(zhu)板(ban)(ban)(ban)高(gao)?工控主(zhu)板(ban)(ban)(ban)相對(dui)商(shang)用主(zhu)板(ban)(ban)(ban)好(hao)在哪?相信很多用戶朋友都有這個(ge)疑問,下面我(wo)們就從(cong)主(zhu)板(ban)(ban)(ban)元器(qi)件的(de)用料與設(she)計方面分析下:
商(shang)用主板(ban):
商(shang)用(yong)主板由于(yu)其更新(xin)(xin)換代(dai)的(de)(de)速度比較(jiao)快,且對產品(pin)(pin)的(de)(de)穩定性及使用(yong)環(huan)境(jing)的(de)(de)要求(qiu)比較(jiao)低(di),故此(ci)追求(qiu)的(de)(de)是(shi)(shi)產品(pin)(pin)的(de)(de)時(shi)效性,以及本(ben)(ben)身產品(pin)(pin)的(de)(de)市(shi)場定位,對元(yuan)器件(jian)(jian)選擇要求(qiu)上(shang)一般只需(xu)滿(man)足系統運行2到3年(nian)的(de)(de)使用(yong)壽命即(ji)可(ke)(3年(nian)之后大部(bu)分(fen)已經(jing)更新(xin)(xin)換代(dai)了),元(yuan)器件(jian)(jian)的(de)(de)用(yong)料(liao)上(shang)使用(yong)普(pu)通級別(bie)的(de)(de)就可(ke)以了。例(li)如(ru)電(dian)容,商(shang)用(yong)主板都是(shi)(shi)大量(liang)使用(yong)普(pu)通的(de)(de)電(dian)解電(dian)容,一是(shi)(shi)出于(yu)商(shang)用(yong)市(shi)場產品(pin)(pin)的(de)(de)使用(yong)考(kao)慮(lv),二是(shi)(shi)為降低(di)主板的(de)(de)成(cheng)本(ben)(ben)考(kao)慮(lv)。
工控主板:
1)工(gong)控主板的(de)元器件
工控主板選料會選用經過長(chang)時間(jian),高要(yao)求(qiu)驗證(zheng)(zheng)元(yuan)(yuan)器件(jian),用以保證(zheng)(zheng)產品在惡(e)劣(lie)(lie)條件(jian)下(xia)高可靠性(xing)要(yao)求(qiu)。例如工控主板(ban)的元(yuan)(yuan)器件(jian)需要(yao)適應寬溫環境(jing)(-20℃~60℃),如固態電容(rong)器,保證(zheng)(zheng)在惡(e)劣(lie)(lie)環境(jing)下(xia)(壽命(ming)期內永(yong)久開機、氣候惡(e)劣(lie)(lie)、潮濕、振(zhen)動、多塵、輻射(she)、高溫等(deng)等(deng))正常工作(zuo);主板(ban)元(yuan)(yuan)器件(jian)需要(yao)耐高溫、抗(kang)潮濕等(deng)等(deng)。
2)工控主板的電(dian)容
工控主板(ban)采(cai)用(yong)的(de)(de)(de)(de)(de)(de)(de)是(shi)高(gao)(gao)質量的(de)(de)(de)(de)(de)(de)(de)貼(tie)片(pian)(pian)式的(de)(de)(de)(de)(de)(de)(de)固態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)、鉭(tan)(tan)、陶瓷電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),即使使用(yong)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),對其品(pin)質、性(xing)能及壽命(ming)要(yao)求也(ye)遠(yuan)高(gao)(gao)于商用(yong)產(chan)品(pin),現在(zai)的(de)(de)(de)(de)(de)(de)(de)工控主板(ban)都基本上(shang)(shang)采(cai)用(yong)固態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),特別中(zhong)高(gao)(gao)端的(de)(de)(de)(de)(de)(de)(de)工控主板(ban)。商用(yong)主板(ban)基本都是(shi)大(da)量采(cai)用(yong)針腳式的(de)(de)(de)(de)(de)(de)(de)大(da)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),因(yin)為大(da)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)成(cheng)(cheng)本低、容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)值大(da)一個(ge)可以頂(ding)多個(ge)貼(tie)片(pian)(pian)或坦電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)。從性(xing)質來說(shuo),電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)穩定性(xing)不及鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)、陶瓷電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)高(gao)(gao),壽命(ming)不及它們長,耐(nai)高(gao)(gao)溫程度不及它們好。貼(tie)片(pian)(pian)式電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)比針腳式電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)更加穩定。從價格上(shang)(shang),鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)比普通的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)要(yao)貴,且由于鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)量較(jiao)小,使用(yong)在(zai)主板(ban)上(shang)(shang)時,需要(yao)使用(yong)更多數(shu)量的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),單(dan)單(dan)鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)成(cheng)(cheng)本就(jiu)是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)幾十(shi)倍,這也(ye)是(shi)導(dao)致工控主板(ban)比商用(yong)主板(ban)成(cheng)(cheng)本價格高(gao)(gao)的(de)(de)(de)(de)(de)(de)(de)原因(yin)之一。
3)工控主板的(de)PCB
商(shang)用(yong)主(zhu)板(ban)(ban)采用(yong)的(de)(de)是(shi)4層(ceng)(ceng)PCB設(she)計(ji)(ji),一般的(de)(de)PCB線路(lu)板(ban)(ban)分有(you)四層(ceng)(ceng),最上和(he)最下的(de)(de)兩層(ceng)(ceng)是(shi)信號層(ceng)(ceng),中(zhong)間兩層(ceng)(ceng)是(shi)接(jie)地(di)層(ceng)(ceng)和(he)電源(yuan)層(ceng)(ceng),將接(jie)地(di)和(he)電源(yuan)層(ceng)(ceng)放在中(zhong)間。工業主(zhu)板(ban)(ban)采用(yong)的(de)(de)是(shi)6層(ceng)(ceng)以上PCB線路(lu)板(ban)(ban)設(she)計(ji)(ji),其(qi)設(she)計(ji)(ji)是(shi)為(wei)了加強主(zhu)板(ban)(ban)的(de)(de)抗電磁干擾、電磁兼容能力,增強主(zhu)板(ban)(ban)的(de)(de)穩定(ding)性等(deng)等(deng)。
4)工(gong)控主板的壽命(ming)
與(yu)商用主板(ban)2到(dao)3年使(shi)用壽命不(bu)同,大(da)多數的工控主板(ban)壽命要求在3年以(yi)上,部分高品質的工控主板(ban),使(shi)用壽命甚(shen)至達到(dao)5—7年。
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