静安区控制箱AD16系列蜂鸣器厂家

    可替52760-1679)Molex35965-0220Molex39-01-2101Molex43045-1815Molex45718-0002Molex50-37-5123Molex52885-2474Molex35965-0224Molex39-01-2105Molex43045-1818Molex45719-0005Molex50-37-5133Molex52892-0895Molex35965-0292Molex39-01-2106Molex43045-1819Molex45719-0007Molex50-37-5143Molex52892-1095Molex35965-9200Molex39-01-2120（5557-12R）Molex43045-1821Molex45719-0008Molex50-37-5153Molex52892-1295Molex35965-9210Molex39-01-2120（5557-12R）Molex43045-1824Molex45719-0009Molex50394-8051Molex52892-1495Molex35965-9220Molex39-01-2121Molex43045-1827Molex45732-0001Molex50394-8051Molex52892-1595Molex35977-0200Molex39-01-2125Molex43045-1829Molex45740-0001Molex50394-8051Molex52892-1695Molex35977-0290Molex39-01-2126Molex43045-2000Molex45750-1111Molex51353-4000Molex52892-1895Molex35977-0300Molex39-01-2140Molex43045-2001Molex45750-1112Molex50394-8052卷带=50394-8200单粒Molex52892-2495Molex35977-0304Molex39-01-2140Molex43045-2002Molex45750-1211Molex50394-8054Molex52892-2496Molex35977-0390Molex39-01-2141Molex43045。当添加交流电压后，会因为压电效应，而生成机械变形伸展及收缩，利用此特性使金属片振动而发出声响。静安区控制箱AD16系列蜂鸣器厂家

    60-0014Molex502584-1470Molex52610-2472Molex35363-2060Molex39-00-0059Molex43045-0617Molex44560-0024Molex502584-1560Molex52610-2571Molex35413-6202Molex39-00-0060Molex43045-0618Molex44620-0001Molex502584-1570Molex52610-2575Molex35413-6602Molex39-00-0061Molex43045-0619Molex44620-0002Molex502585-0370Molex52610-2671Molex35413-6702Molex39-00-0062Molex43045-0620Molex44620-0003Molex502585-0470Molex52610-2675Molex35413-6802Molex39-00-0065Molex43045-0621Molex44661-0001Molex502585-0570Molex52610-2871Molex35427-9802Molex39-00-0066Molex43045-0622Molex44661-0002Molex502585-0670Molex52610-2871Molex35427-9902Molex39-00-0067Molex43045-0623Molex44661-0011Molex502585-0870Molex52610-3071Molex35430-1700Molex39-00-0068Molex43045-0624Molex44661-0021Molex502585-1070Molex52689-0587Molex35430-1900Molex39-00-0075Molex43045-0625Molex44661-1001Molex502585-1270Molex52689-1287Molex35438-8000Molex39-00-0076Molex43045-0626Molex44661-1011Molex502585-1470Molex52689-3087Molex35439-8000Molex39-00-0077Molex43045-0627Molex。静安区控制箱AD16系列蜂鸣器厂家蜂鸣器内部有简单的振荡电路，能将恒定的直流电转化成频率的脉冲信号，面实出磁场交变，带动钼片振动发音。

   蜂鸣器 技术实现要素：本实用新型的主要目的是提出一种便于安装的压电式蜂鸣器，旨在解决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的技术问题。为实现上述目的，本实用新型提出的便于安装的压电式蜂鸣器，包括壳体、后盖、压电陶瓷片以及插脚，所述壳体呈圆柱体形设置，所述壳体的后端面凹设有一沿长度方向延伸且与所述压电陶瓷片相适配的呈圆环形的共振腔，所述压电陶瓷片可拆卸的嵌设于所述共振腔内设置，所述后盖可拆卸的嵌设于所述共振腔的后端开口处设置，所述插脚平行的凸设于所述后盖的后端面设置，且所述插脚与所述压电陶瓷片电性连接，所述壳体的下端外周壁设有安装板，所述壳体后端面的两侧外周壁分别对称的凸设有第二安装板，所述安装板分别与所述第二安装板垂直连接，所述安装板的两端分别对称的凹设有安装孔，所述第二安装板凹设有第二安装孔。可选地，所述安装板呈矩形设置，且所述安装孔对称平行的设置于所述壳体的外周壁的两侧。可选地，所述安装孔为u型槽，所述u型槽的后端面具有一开口，且所述u型槽沿长度方向延伸。可选地，所述第二安装板的外周壁呈圆弧形设置，所述第二安装孔对称的设置于所述壳体的外周壁的两侧。

    驱动电路由于蜂鸣器的工作电流一般比较大，以致于单片机的I/O口是无法直接驱动的*(但AVR可以驱动小功率蜂鸣器)，所以要利用放大电路来驱动，一般使用三极管来放大电流就可以了。蜂鸣器驱动电路一般都包含以下几个部分:一个三极管、一个蜂鸣器、一个续流二极管和一个电源滤波电容。1.蜂鸣器发声元件，在其两端施加直流电压(有源蜂鸣器)或者方波(无源蜂鸣器)就可以发声，其主要参数是外形尺寸、发声方向、工作电压、工作频率、工作电流、驱动方式(直流/方波)等。这些都可以根据需要来选择。2.续流二极管蜂鸣器本质上是一个感性元件，其电流不能瞬变，因此必须有一个续流二极管提供续流。否则，在蜂鸣器两端会产生几十伏的尖峰电压，可能损坏驱动三极管，并干扰整个电路系统的其它部分。3.滤波电容滤波电容C1的作用是滤波，滤除蜂鸣器电流对其它部分的影响，也可改善电源的交流阻抗，如果可能，比较好是再并联一个220uF的电解电容。4.三极管三极管Q1起开关作用，其基极的高电平使三极管饱和导通，使蜂鸣器发声;而基极低电平则使三极管关闭，蜂鸣器停止发声。 声音频率可控，可以做出"多来米发索拉西"的效果。

    671Molex35746-0410Molex39-00-0431Molex43045-1409Molex44915-0021Molex503548-0620Molex52808-0770Molex35746-0410Molex39-00-0432Molex43045-1410Molex44985-0001Molex503548-1220Molex52808-0771Molex35747-0110Molex39-00-0433Molex43045-1411Molex45280-0401Molex503548-1620Molex52808-0870Molex35747-0210Molex39-00-0434Molex43045-1412Molex45280-0602Molex503552-0620Molex52808-0871Molex35747-0310Molex39-00-0435Molex43045-1413Molex45280-0653Molex503552-1220Molex52808-0970Molex35747-0410Molex39-01-0023Molex43045-1414Molex45280-1203Molex503552-1620Molex52808-1070Molex35748-0110Molex39-01-0063Molex43045-1418Molex45280-1053Molex503552-1820Molex52808-1170Molex35748-0110Molex39-01-0069Molex43045-1419Molex45280-2402Molex50-36-1672Molex52808-1171Molex35748-0210Molex39-01-2020Molex43045-1420Molex45339-1600Molex50-36-1673（黑色）阻燃性阻燃性94V-0=39-01-2020（白色）阻燃性94V-2Molex52808-1270Molex35748-0310Molex39-01-2020Molex43045-1421Molex45481-0097Molex50-36-1675Molex52808-1271Molex35748-0410Molex39-01-2021。无源电磁蜂鸣器工作原理是：交流信号通过绕在支架上的线包在支架的芯柱上产生一交变的磁通。静安区控制箱AD16系列蜂鸣器厂家

工频耐压：AC1890V 50Hz .5s 绝缘电阻≥100MΩ。 交流指示灯允许电压波动±20% 连续工作寿命≥30000H。静安区控制箱AD16系列蜂鸣器厂家

    661-1131Molex502585-1570Molex52745-0496Molex35454-8702Molex39-00-0077Molex43045-0800Molex44764-0401Molex502598-2391Molex52745-0497Molex35454-8902Molex39-00-0078Molex43045-0800Molex44764-0402Molex502598-2591Molex52745-0696Molex35507-0200Molex39-00-0079Molex43045-0801Molex44764-0601Molex502598-3391Molex52745-0697Molex35507-0200Molex39-00-0079Molex43045-0802Molex44764-0602Molex502603-0870Molex52745-0796Molex35507-0300Molex39-00-0079Molex43045-0806Molex44764-0801Molex502702-0891Molex52745-0896Molex35507-0400Molex39-00-0080Molex43045-0807Molex44764-0802Molex502761-3300Molex52745-0897Molex35507-0400Molex39-00-0081Molex43045-0809Molex44764-0803Molex502761-4900Molex52745-0997Molex35507-0500Molex39-00-0082Molex43045-0810Molex44764-1001Molex502774-0891Molex52745-1096Molex35507-0600Molex39-00-0083Molex43045-0811Molex44764-1002Molex502790-3091Molex52745-1097Molex35507-0600Molex39-00-0084。静安区控制箱AD16系列蜂鸣器厂家