青浦区主营AD16系列蜂鸣器货源充足

    本实用新型涉及蜂鸣器技术领域，特别涉及一种便于安装的压电式蜂鸣器。背景技术：蜂鸣器是一种一体化结构的电子讯响器，采用直流电压供电，广泛应用于计算机、打印机、复印机、报警器、电子玩具、汽车电子设备、电话机、定时器等电子产品中作发声器件。蜂鸣器主要分为压电式蜂鸣器和电磁式蜂鸣器两种类型，压电式蜂鸣器是一种电声转换器件，将压电材料粘贴在金属片上，当压电材料和金属片两端施加上一个电压后，因为逆压电效应，蜂鸣片就会产生机械变形而发出声响，压电式蜂鸣器大致分为回授式蜂鸣片(自激式)与无回授式蜂鸣片(外激式)两种。当回授式蜂鸣片搭配正回授振荡电路会产生一个与共振腔频率相同的单音；而无回授式蜂鸣片则可以搭配外部振荡电路，选择任意频率发出声音。然而，目前现有的压电式蜂鸣器大多装配复杂，安装较为繁琐，效率低，不方便安装及后期维护。发声形式：连续、断续 接线方式为接插式； 头部有：圆形，方形，矩形。青浦区主营AD16系列蜂鸣器货源充足

    34695-0100Molex38723-6502Molex41671-0011Molex39501-1016Molex501616-3585Molex52045-3045Molex34696-0100Molex38723-6504Molex41671-0023Molex39501-1017Molex501616-3985Molex52045-3245Molex34729-0080Molex38723-6506Molex41791-0774Molex39501-1018Molex501616-4185Molex52045-3645Molex34729-0120Molex38723-6510Molex41791-0832Molex39501-1019Molex501616-4585Molex52045-4045Molex34729-0121Molex38723-6702Molex41791-0834Molex39501-1020Molex501616-5185Molex52089-0519Molex34729-0160Molex38723-6703Molex41791-0853Molex39502-1002Molex501628-2191Molex52089-0719Molex34729-0200Molex38723-6705Molex41792-0511Molex39502-1003Molex501628-2791Molex52089-0819Molex34729-0201Molex38724-4908Molex41792-0515Molex39502-1004Molex501628-3191Molex52089-1219Molex34729-0202Molex38724-4912Molex41792-0530Molex39502-1005Molex501628-3391Molex52089-1419Molex34729-0203Molex38725-0004Molex41792-0532Molex39502-1006Molex501628-3591Molex52089-1619Molex34803-0211Molex38725-1114Molex42228-0494Molex39502-1007Molex501628-3991Molex52089-1719Mo。青浦区主营AD16系列蜂鸣器货源充足有“TH”标志的能在湿热带环境下工作。 防护等级：IP20。

    35183-0217Molex38760-0304Molex43030-0001Molex44300-1200Molex502380-0300Molex52437-3071Molex35184-0200Molex38760-0308Molex43030-0001Molex44300-1400Molex502380-0400Molex52437-3072Molex35184-0300Molex38760-0312Molex43030-0001Molex44300-1600Molex502380-0500Molex52465-1071Molex35184-0400Molex38760-0404Molex43030-0002Molex44300-1800Molex502380-0600Molex52465-1671Molex35184-0590Molex38760-1103Molex43030-0002Molex44300-2000Molex502380-0700(配套502382-0770)Molex52465-1871Molex35184-0600Molex38769-0022Molex43030-0003卷带=43030-0009Molex44300-2200Molex502380-0800Molex52465-1871Molex35184-0700Molex38769-0207Molex43030-0003Molex44300-2400Molex502380-0900Molex52465-2071Molex35184-0800Molex38769-0220Molex43030-0003Molex44372-0002Molex502380-1000Molex52465-2471Molex35184-0900Molex38770-0102Molex43030-0004Molex44428-0401Molex502380-1100Molex52465-2671Molex35184-1000Molex38770-0103Molex43030-0004Molex44428-0402Molex502380-1200Molex52465-2871Molex35184-1100Molex38770-0104Molex43030-0005Molex44428-0601M。

    006Molex45750-1212Molex50394-8100单粒=50394-8051卷带Molex52892-2695Molex35977-0400Molex39-01-2145Molex43045-2009Molex45750-3111Molex50394-8200Molex52892-2890Molex35977-0490Molex39-01-2145Molex43045-2010Molex45750-3111Molex50394-8400Molex52892-2895Molex35977-0500Molex39-01-2146Molex43045-2011Molex45750-3112Molex50397-8000Molex52892-3090Molex35977-0590Molex39-01-2160（5557-16R）Molex43045-2012Molex45750-3211Molex50398-8000Molex52892-3095Molex35977-0600Molex39-01-2160（5557-16R）Molex43045-2013Molex45750-3212Molex50398-8000Molex52893-0895Molex35977-0690Molex39-01-2160（5557-16R）Molex43045-2014Molex45802-0215Molex50419-9001Molex52893-0896Molex35977-0700Molex39-01-21615559-16PMolex43045-2015Molex45802-0227Molex50420-8000Molex52893-1090Molex35977-0790Molex39-01-2165Molex43045-2016Molex45802-1211Molex50516-8041Molex52893-1095Molex35977-0800=35977-0890Molex39-01-2166Molex43045-2018Molex45802-1223Molex50516-8041Molex52893-1295Molex35977-0900Molex39-01-2180Molex43045-2019Molex45830-0215Molex5。多谐振荡器由晶体管或集成电路构成。

    5264-05Molex52885-0374Molex35955-0410Molex39-01-2080Molex43045-1800Molex45579-0001配对45626-0001)Molex50-37-5054Molex52885-0474Molex35955-0420Molex39-01-20805557-08RMolex43045-1801Molex45586-0003Molex50-37-5063Molex52885-0574Molex35955-0610Molex39-01-2081Molex43045-1802Molex45593-1600（配套44828-1162）Molex50-37-5063Molex52885-0674Molex35955-0810Molex39-01-2081Molex43045-1806Molex45609-0001Molex50-37-5073(5264-07）Molex52885-0774Molex35955-0820Molex39-01-2085Molex43045-1807Molex45626-0001(配对#45627-0002)Molex50-37-5083Molex52885-0874Molex35956-0400Molex39-01-2085Molex43045-1809Molex45627-0002Molex50-37-5093Molex52885-0974Molex35965-0200Molex39-01-2085Molex43045-1811Molex45627-0002Molex50-37-5093Molex52885-1074Molex35965-0210Molex39-01-2086Molex43045-1812Molex45711-1000Molex50-37-5103Molex52885-1274Molex35965-0210Molex39-01-2100Molex43045-1813Molex45714-0001Molex50-37-5103Molex52885-1474Molex35965-0214Molex39-01-2100Molex43045-1814Molex45714-0003Molex50-37-5113Molex52885-1674。有源蜂鸣器和无源蜂鸣器的根本区别是产品对输入信号的要求不一样。青浦区主营AD16系列蜂鸣器货源充足

制备电磁铁Ｍ：在长约6厘米的铁螺栓上绕100圈导线。青浦区主营AD16系列蜂鸣器货源充足

    开关管q1的控制端通过所述电阻r1与mcu控制io口连接。在本发明实施例中，所述开关管q1为npn型三极管，所述开关管q1的端为集电极，所述开关管q1的第二端为发射极，所述开关管q1的控制端为基极。所述振荡回路30包括有电感l1、第二电感l2和电容c1，所述振荡控制电路20包括有第二电阻r2、第三电阻r3、第二开关管q2、第三开关管q3和第三电感l3，其中，所述第二电阻r2的端、第三电阻r3的端、电感l1的端和第二电感l2的端与电源vcc连接，所述电感l1的第二端分别与电容c1的端、第三开关管q3的端连接，所述第二电感l2的第二端分别与电容c1的第二端、第二开关管q2的端连接，所述蜂鸣器bz1连接于电容c1的端和电容c1的第二端之间；所述第二电阻r2的第二端分别与第三电感l3的端、第三开关管q3的控制端连接，所述第三电阻r3的第二端分别与第三电感l3的第二端、第二开关管q2的控制端连接，第二开关管q2的第二端、第三开关管q3的第二端与所述电源控制电路连接；所述电感l1、第二电感l2和第三电感l3绕制在同一个ef20变压器骨架上，且电感l1的端和第二电感l2的端互为异名端，第二电感l2的端和第三电感l3的端互为同名端。所述蜂鸣器采用标准工作频率为4khz的压电式蜂鸣器。青浦区主营AD16系列蜂鸣器货源充足