虹口区制造AD16系列蜂鸣器公司

    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。一般会采用三脚抽头电感，一般为10倍的升压比，有些高声压110dB以上的可能要用小功率变压器实现升压。虹口区制造AD16系列蜂鸣器公司

    结构原理蜂鸣器1.压电式蜂鸣器压电式蜂鸣器主要由多谐振荡器、压电蜂鸣片、阻抗匹配器及共鸣箱、外壳等组成。有的压电式蜂鸣器外壳上还装有发光二极管。多谐振荡器由晶体管或集成电路构成。当接通电源后(),多谐振荡器起振,输出，阻抗匹配器推动压电蜂鸣片发声。蜂鸣器压电蜂鸣片由锆钛酸铅或铌镁酸铅压电陶瓷材料制成。在陶瓷片的两面镀上银电极，经极化和老化处理后，再与黄铜片或不锈钢片粘在一起。2.电磁式蜂鸣器电磁式蜂鸣器由振荡器、电磁线圈、磁铁、振动膜片及外壳等组成。接通电源后，振荡器产生的音频信号电流通过电磁线圈，使电磁线圈产生磁场。振动膜片在电磁线圈和磁铁的相互作用下，周期性地振动发声。 虹口区制造AD16系列蜂鸣器公司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。

   蜂鸣器 拔下电源线，用镊子短路三脚插头的两个供电插脚，测另一头三芯插孔的两个供电插孔间的电阻为零，拿开镊子时电阻变为无穷大，说明电源供电线完好，不存在开路和短路故障。测电脑电源各输出脚对地间的电压全部为0V，在紫线与黑线间测不到5V待机电压，绿线与黑线间电压也为0V。拆开电脑电源盒，测电源输入端正反向电阻均为无穷大，测TUBE6A保险丝烧断。测C121两端正向电阻为无穷大，反向电阻为487Ω。C122两端正反向电阻都为13Ω。沿电路找到并联在C121两端的压敏保护电阻RV121(TVR10241X)由黄色变为红色，并被烧缺一块。RV122(TVR10241X)直接被击穿为13Ω，但仍为黄色。测查所有晶体管和大功率管及输出电路的所有整流二极管和滤波电容，对可疑元件逐一拆下检测，未找到击穿、漏电或开路元件。由电路的连接方式可以推断出，TVR10241X的保护电压应该是MYC10K471保护电压的一半。用一个MYG10K471彩电整流滤波输出端的保护压敏电阻，一脚焊接到C121的正极，一脚焊接到C122的负极，将两个串联保护的压敏电阻改为一个，以提高保护的灵敏度和可靠性，更换保险。通电测C121和C122两端的电压分别依次为156V，MYG10K471两端的电压为313V，比彩电中该电阻两端电压298V高5V。

    ex38779-0409Molex43045-0222Molex44472-1254Molex502430-8010Molex52584-1079Molex35313-0360Molex38779-0462Molex43045-0224Molex44472-1255Molex502438-0000Molex52584-1279Molex35313-0360Molex38780-0102Molex43045-0400Molex44472-1653Molex502438-0100单粒=502438-0000卷带Molex52584-1479Molex35313-0460Molex38780-0103Molex43045-0400Molex44472-1654Molex502439-0400Molex52588-1875Molex35313-0560Molex38780-0104Molex43045-0401Molex44472-2050Molex502439-0400Molex52588-2075Molex35313-0660Molex38780-0105Molex43045-0401Molex44472-2051Molex502439-0400Molex52602-0579Molex35313-0760Molex38780-0106Molex43045-0402Molex44472-2452Molex502439-0600Molex52610-0571Molex35313-1060Molex38780-0107Molex43045-0406Molex44472-2454Molex502439-0800Molex52610-0671Molex35328-0260Molex38780-0108Molex43045-0407Molex44474-0631停产=44474-0611停产Molex502439-1200Molex52610-0671Molex35328-0360Molex38780-0109Molex43045-0408Molex44475-1021Molex502439-1400Molex52610-0672Molex35328-0410Molex38780-0110Molex43045-0409Molex44475-1821Molex50。适用于电力、电讯、机床、船舶、纺织、印刷、矿山机械等设备的线路中的声音信号。

    460Molex35150-3319Molex38739-0187Molex42820-5222Molex39-53-2064Molex501912-4590Molex52207-2485Molex35151-0110Molex38739-0237Molex42820-6212Molex39-53-2065Molex501912-4790Molex52207-2585Molex35151-0119Molex38739-0433Molex42820-6222Molex39-53-2074Molex501920-3001Molex52207-2685Molex35151-0210Molex38739-0518Molex42824-4002Molex39-53-2075Molex501920-4001Molex52207-2885Molex35151-0210Molex38739-0588Molex42825-4001Molex39-53-2084Molex501930-1100Molex52207-3060Molex35151-0212Molex38739-0601Molex42825-4002Molex39-53-2085Molex501931-2070Molex52207-3085Molex35151-0214Molex38739-0604Molex42825-4003Molex39-53-2094Molex501931-3070Molex52213-0211Molex35151-0216Molex38740-0103Molex42878-4218Molex39-53-2095Molex501931-4070Molex52213-0311Molex35151-0219Molex38740-3102Molex42878-6218Molex39532-1002Molex501939-0300Molex52213-0417Molex35151-0310Molex38740-3706Molex42878-6362Molex39532-1003Molex501939-0500Molex52266-0211Molex35151-0319Molex38740-4606Molex42878-8408Molex39532-1004Molex501951-2400Molex5226。蜂鸣器的作用 蜂鸣器是一种一体化结构的电子讯响器。虹口区制造AD16系列蜂鸣器公司

有的压电式蜂鸣器外壳上还装有发光二极管。虹口区制造AD16系列蜂鸣器公司

    5556T)Molex43045-0606Molex44516-0009(PK-44516-004)Molex502584-0270Molex52610-1675Molex35363-0460Molex39-00-0038Molex43045-0607Molex44516-0012Molex502584-0360Molex52610-1771Molex35363-0460Molex39-00-0040Molex43045-0608Molex44516-0013Molex502584-0460Molex52610-1871Molex35363-0560Molex39-00-0040Molex43045-0609Molex44520-0001Molex502584-0470Molex52610-1872Molex35363-0660Molex39-00-0041单粒=39-00-0040卷带Molex43045-0610Molex44520-0004Molex502584-0670Molex52610-1890Molex35363-0760Molex39-00-0046Molex43045-0611Molex44520-0006Molex502584-0860Molex52610-2071Molex35363-0860Molex39-00-0046Molex43045-0612Molex44560-0001Molex502584-0870Molex52610-2072Molex35363-0960Molex39-00-0047单粒=卷带Molex43045-0613Molex44560-0002Molex502584-1060Molex52610-2075Molex35363-1060Molex39-00-0048Molex43045-0614Molex44560-0004Molex502584-1070Molex52610-2271Molex35363-1160Molex39-00-0049单粒=卷带39-00-0048Molex43045-0615Molex44560-0012Molex502584-1270Molex52610-2471Molex35363-1260Molex39-00-0059Molex43045-0616Molex4。虹口区制造AD16系列蜂鸣器公司