手持POS機是一種多功能終端，把它安裝在信用卡的特約商戶和受理網點中與計算機聯成網絡，就能實現電子資金自動轉帳，它具有支持消費、預授權、余額查詢和轉帳等功能，使用起來安全、快捷、可靠。大宗交易中基本經營情報難以獲取，導(dao)入POS系統(tong)主要(yao)是解(jie)決零售業(ye)信(xin)息(xi)管理盲(mang)點。連鎖分(fen)店管理信(xin)息(xi)系統(tong)中的重要(yao)組成(cheng)部(bu)分(fen)。

一、POS機智能鋰電池設計要求：

根據客戶(hu)的要求和規(gui)格，設計(ji)與主機(ji)配套的POS機(ji)智能(neng)(neng)電(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)(zu)，將(jiang)帶通信協議的智能(neng)(neng)電(dian)(dian)(dian)量(liang)計(ji)、鋰電(dian)(dian)(dian)池(chi)(chi)(chi)及安(an)全(quan)保護性能(neng)(neng)集成到(dao)解(jie)決方(fang)(fang)案中去(qu)，可達到(dao)智能(neng)(neng)鋰電(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)(zu)與POS機(ji)主機(ji)信息共(gong)享，最(zui)(zui)終實(shi)現合理(li)、高效、安(an)全(quan)的電(dian)(dian)(dian)池(chi)(chi)(chi)管理(li)方(fang)(fang)案。在整個方(fang)(fang)案的設計(ji)過程中，以(yi)實(shi)現同主機(ji)的最(zui)(zui)完美的整合為方(fang)(fang)向，以(yi)確(que)保電(dian)(dian)(dian)池(chi)(chi)(chi)、電(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)(zu)及整個系(xi)統的安(an)全(quan)性為前提，以(yi)滿(man)足相應的設計(ji)法規(gui)及認證法規(gui)為首選(xuan)考(kao)慮。同時為了(le)確(que)保鋰電(dian)(dian)(dian)池(chi)(chi)(chi)的安(an)全(quan)性和可靠性，電(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)(zu)內部都要采取多層保護，防止(zhi)鋰電(dian)(dian)(dian)池(chi)(chi)(chi)因過充電(dian)(dian)(dian)，過放電(dian)(dian)(dian)或短路(lu)而(er)被破壞。

二、POS機智能鋰電池設計方案：

1）保(bao)護(hu)板（PCM）：主要是對可充(chong)電(dian)(dian)智(zhi)能電(dian)(dian)池(chi)(chi)組(zu)進行設(she)計的(de)保(bao)護(hu)線路(lu)，由于(yu)鋰電(dian)(dian)池(chi)(chi)本身的(de)化學(xue)特性，需要提供智(zhi)能電(dian)(dian)量計算(suan)、過充(chong)、過放、短路(lu)、過流(liu)及過溫等保(bao)護(hu)功能。以(yi)避免引起燃燒、爆炸等危險。

2）保護(hu)IC（Protection IC）：設計方案的主要保護(hu)功能芯(xin)片，對電(dian)芯(xin)進行過(guo)充、過(guo)放、過(guo)流、短(duan)路(lu)等功能的在線時時監測。使電(dian)芯(xin)在安全穩定高效的范圍內(nei)工作。

3）過流(liu)保(bao)護片（PTC）：主要針對(dui)二(er)次保(bao)護功能設計(ji)。PTC可恢(hui)復保(bao)險絲具有過流(liu)保(bao)護，自動恢(hui)復雙重功能。電池產品(pin)里的PTC可以(yi)防止電池高溫(wen)放(fang)電和不安全的大電流(liu)的發生(sheng)。 4）103450鋰離子電芯/103450 Li-ion cell（SANYO）。

5）場效(xiao)應管（MOSFET）：MOSFET管，在保護(hu)電(dian)(dian)路中起開關作(zuo)用(yong)，永遠(yuan)使負(fu)載(zai)兩端的電(dian)(dian)壓(ya)不(bu)會升高也不(bu)會降低，保證電(dian)(dian)壓(ya)穩(wen)定。

6）電(dian)(dian)(dian)(dian)(dian)量(liang)管理控(kong)制(zhi)芯片（BQ26500）：功(gong)能(neng)完(wan)整的電(dian)(dian)(dian)(dian)(dian)量(liang)檢(jian)(jian)(jian)測計(ji)，具(ju)有一(yi)(yi)個(ge)測量(liang)電(dian)(dian)(dian)(dian)(dian)壓與(yu)溫度的模數(shu)轉換(huan)器(qi)(qi)(ADC) 和一(yi)(yi)個(ge)測量(liang)電(dian)(dian)(dian)(dian)(dian)流與(yu)充(chong)電(dian)(dian)(dian)(dian)(dian)感測的模數(shu)轉換(huan)器(qi)(qi)。電(dian)(dian)(dian)(dian)(dian)量(liang)檢(jian)(jian)(jian)測計(ji)具(ju)有一(yi)(yi)個(ge)微處理器(qi)(qi)，負責執行(xing)電(dian)(dian)(dian)(dian)(dian)量(liang)檢(jian)(jian)(jian)測計(ji)，能(neng)夠提(ti)供剩(sheng)余電(dian)(dian)(dian)(dian)(dian)量(liang)狀態(Remaining State of Capacity)等信(xin)息，BQ26500產品還提(ti)供剩(sheng)余可運(yun)行(xing)時間 (Run Time to Empty)。主機可隨時向電(dian)(dian)(dian)(dian)(dian)量(liang)檢(jian)(jian)(jian)測計(ji)查(cha)詢這些信(xin)息，將(jiang)電(dian)(dian)(dian)(dian)(dian)池信(xin)息通(tong)知用戶。電(dian)(dian)(dian)(dian)(dian)量(liang)檢(jian)(jian)(jian)測計(ji)的使用非常方便。讓使用者隨時掌握電(dian)(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)(dian)能(neng)。

7）電池組封裝:膠殼(ke)。

8）POS機智能電池設(she)計方案原理圖：

三、POS機智能鋰電池產品實現圖：