IS200VRTDH1DAB燃機(jī)模塊
例宏發(fā)繼電器型號(hào)為HF46F-G系列,其規(guī)格書(shū)中給出繼電器觸點(diǎn)材質(zhì)分為兩種材料：AgSnO2和AgNi，即：HF46F-G/XXT（帶T）觸點(diǎn)材料為AgSnO2；HF46F-G/XX（不帶T）觸點(diǎn)材料為AgNi。該系列的規(guī)格書(shū)中對(duì)不同材料觸點(diǎn)的應(yīng)用也做了區(qū)分，如下：
1）AgSnO2常用于容性負(fù)載、感性負(fù)載、馬達(dá)負(fù)載等會(huì)產(chǎn)生浪涌電流的應(yīng)用場(chǎng)合。
2）AgNi常用于阻性負(fù)載，電流穩(wěn)定的場(chǎng)合。
IS200VRTDH1DAB燃機(jī)模塊那么，對(duì)于開(kāi)關(guān)電源輸入端使用的繼電器應(yīng)用，后端實(shí)際負(fù)載一般都會(huì)有電感、電容等導(dǎo)致浪涌電流出現(xiàn)的器件，所以在選擇繼電器時(shí)就應(yīng)該使用觸點(diǎn)材料為AgSnO2的繼電器。
繼電器的失效一般有以下幾種：繼電器內(nèi)部多余物、觸點(diǎn)表面污物、工藝結(jié)構(gòu)不當(dāng)、觸點(diǎn)燒蝕，粘連、銀離子遷移、外部應(yīng)用導(dǎo)致簧片位移。
這些失效模式大部分是由于繼電器的生產(chǎn)工藝控制不當(dāng)引起的，因此對(duì)于繼電器生產(chǎn)廠家來(lái)說(shuō)，改善生產(chǎn)環(huán)境、完善質(zhì)量控制及檢驗(yàn)制度對(duì)于預(yù)防繼電器頻繁失效將會(huì)起到非常關(guān)鍵的作用。此外，用戶必須依據(jù)實(shí)際使用要求，首先優(yōu)選使用類型，再審慎確定所需的功能特性與物理特性（包含環(huán)境適應(yīng)性要求、輸入、輸出參數(shù)、時(shí)間參數(shù)、觸點(diǎn)壽命、體積、重量、安裝尺寸、安裝方式、密封性等），從而選用適合的繼電器，對(duì)應(yīng)避免使用過(guò)程中導(dǎo)致的失效也有重要意義。開(kāi)關(guān)電源實(shí)際工作過(guò)程中，即使繼電器觸點(diǎn)短路失效產(chǎn)品也可正常工作，因此在使用過(guò)程中很難發(fā)現(xiàn)。而一旦繼電器觸點(diǎn)短路失效，較大的輸入沖擊電流就會(huì)影響產(chǎn)品工作的可靠性，也可能因?yàn)檩^大的輸入沖擊電流導(dǎo)致前端供電系統(tǒng)的異常報(bào)警。預(yù)防這種情況出現(xiàn)的方案是設(shè)計(jì)前期把握好電路參數(shù)的選擇和選擇符合該電路特性使用的繼電器型號(hào)。全球領(lǐng)先的AC/DC和DC/DC轉(zhuǎn)換器制造商RECOM推出1.2kW AC/DC電源RACM1200-V。該轉(zhuǎn)換器是由RECOM 在奧地利開(kāi)發(fā)并在歐洲生產(chǎn)制造的，已獲得所有醫(yī)療應(yīng)用的相關(guān)認(rèn)證。隨著運(yùn)輸路線和供應(yīng)鏈的日益縮短，RECOM正致力于可持續(xù)性的發(fā)展。
機(jī)器人是需要使用超過(guò) 1kW 電源的一個(gè)例子。
General component layoutAccording to the functional units of the circuit, the layout of all components of the circuit shall comply with the following principles:
① Arrange the position of each functional circuit unit according to the circuit flow, so that the layout is convenient for signal flow, and keep the signal in the same direction as much as possible.
② Take the core components of each functional circuit as the center and layout around it. Components and parts shall be evenly, neatly and compactly arranged on the PCB to minimize and shorten the leads and connections between components and parts.
③ For the circuit working at high frequency, the distribution parameters between components should be considered. In general, the components and parts should be arranged in parallel as far as possible, which is not only beautiful, but also easy to assemble and weld, and easy to mass produce.
④ Components and parts located at the edge of the circuit board are generally not less than 2 mm away from the edge of the circuit board. The best shape of the circuit board is rectangle.
