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針對(duì)按鍵開關(guān)的分類和原理全面介紹

發(fā)布日期:2022-10-30 點(diǎn)擊率:55

       按鍵開關(guān)主要分為兩類:用金屬簧片作開關(guān)接觸片者稱為按鍵開關(guān),其接觸電阻低、手感良好、發(fā)出“滴答”清脆聲。 以導(dǎo)電橡膠為接觸通路,習(xí)慣上叫導(dǎo)電橡膠開關(guān)。

      開關(guān)感覺良好,但是接觸電阻較大,通常為100一300n左右。 按鍵開關(guān)其構(gòu)造為依靠按鍵下移使得接觸簧片或者導(dǎo)電橡膠塊與焊片相接觸而構(gòu)成通路。

       按鍵開關(guān)操作力的大小和簧片的狀態(tài)相關(guān)。 開始力正比于簧片被擠壓距離簧片被擠壓至一個(gè)高度后,操作力驟減,伴隨“滴答”聲音。 導(dǎo)龜橡膠開關(guān)的結(jié)構(gòu)通常分為兩類。 操作力曲線因橡膠塊幾何形狀而變化較大。

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