前言RFcednc
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充电头网采购了一款白牌高速吹风机，这款吹风机采用高速无刷电机，标称功率为1600W。这款白牌吹风机，相比拆解过的品牌吹风机，仅具有电源开关和档位开关。但是保留了双金属片温度开关，NTC热敏电阻和负离子发生器，在安全性和使用体验上仍然有保证。下面就带来这款无刷高速吹风机的拆解，一起看看内部的设计和用料。RFcednc
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智能负离子高速吹风机外观RFcednc
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这款白牌智能负离子高速吹风机与此前拆解的美的、岚斐品牌吹风机一样，也是取交流电使用，自带粉色电源线，机身主体则是更淡的白金配色，整体配色十分少女心，可以很好迎合女性用户群体。RFcednc
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电源线插头端特写，输入规格参数为10A 250V~，通过了CCC认证。RFcednc
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插头插脚为国标。RFcednc
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吹风机机身是经典T字造型设计，边缘处理得都很圆润，圆柱握把持握手感好。RFcednc
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握把最下方的进风部分外壳采用网孔设计，同时内部还设有超密滤网，可有效阻隔灰尘和碎发。RFcednc
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外壳上印有产品信息RFcednc
产品名称：智能负离子高速吹风机RFcednc
产品型号：DLX01RFcednc
额定电压：220V~RFcednc
额定频率：50HzRFcednc
额定功率：1600WRFcednc
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握把上还设有开关键以及档位切换键。RFcednc
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风筒前端外围设计磁铁环，可方便用户组装风嘴进行使用。RFcednc
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测得电源线长度约为1.8米。RFcednc
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吹风机机身两端长度约为24cm。RFcednc
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顶部风筒长度约为8.8cm。RFcednc
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直径约为7cm。RFcednc
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握把直径约为3.7cm。RFcednc
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另外测得这款智能负离子高速吹风机重量约为507g。RFcednc
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智能负离子高速吹风机拆解RFcednc
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看完了这款负离子吹风机的外观，下面就进行拆解，一起来看看内部的设计和用料。RFcednc
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首先撬开吹风机后盖。RFcednc
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吹风机后盖边缘设有密封圈。RFcednc
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后盖内部密封圈特写。RFcednc
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在吹风机头部设有圆形PCBA模块。RFcednc
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PCBA模块通过螺丝固定。RFcednc
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PCBA模块通过导线焊接连接。RFcednc
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PCBA模块由两块PCB焊接组成。RFcednc
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两片PCB之间通过排针焊接连接。RFcednc
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PCBA模块上层焊接整流滤波电路，下层焊接驱动芯片。RFcednc
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PCBA模块背面焊接一颗MCU，用于无刷电机驱动控制。RFcednc
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焊接拆分两片PCBA模块，继续进行解析。RFcednc
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PCBA模块正面一览，左侧焊接热敏电阻，安规X2电容，压敏电阻，共模电感和整流桥。RFcednc
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背面焊接保险丝和两颗光耦。RFcednc
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输入端贴片保险丝规格为3.15A。RFcednc
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NTC热敏电阻用于抑制上电的浪涌电流。RFcednc
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安规X2电容来自东莞成希，规格为0.47μF。RFcednc
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压敏电阻来自东莞成希，型号10D471K。RFcednc
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共模电感采用漆包线和磁环绕制。RFcednc
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整流桥型号KBP310，规格为3A1000V。RFcednc
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两颗高压电解电容来自宏远纳川电子。RFcednc
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规格均为33μF400V。RFcednc
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奥伦德 3H4B光耦用于过零检测。RFcednc
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奥伦德 M3052光耦用于可控硅控制。RFcednc
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双向可控硅型号BTA420-800BT，耐压800V，工作电流20A，采用TO220封装。RFcednc
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底层PCBA模块正面焊接三颗半桥芯片和两路降压电路。RFcednc
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背面焊接一颗MCU。RFcednc
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无刷电机驱动芯片来自中微半导体，型号CMS32M5710，是一颗Cortex-M0内核的电机控制专用芯片。芯片支持2.1-5.5V工作电压，芯片内置64K Flash和8K SRAM，具备46个GPIO，芯片内置ADC，运放，比较器，并具备UART接口，I2C接口和SPI接口。RFcednc
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三颗用于无刷电机驱动的半桥芯片特写。RFcednc
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用于电机驱动的半桥芯片来自华润微，型号CS5755SDQ，是一颗耐压500V的半桥智能功率模块，芯片内置两个快恢复MOS管，高压栅极驱动电路和自举二极管，兼容多种接口电压，并内置温度检测功能。RFcednc
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100mΩ电阻用于电流检测。RFcednc
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三颗2N3904三极管用于RGB LED驱动控制。RFcednc
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RGB LED特写。RFcednc
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非隔离降压芯片来自芯朋，型号PN8054E，芯片内部集成控制器和降压MOS管，用于降压输出。芯片固定15V输出电压，内部集成高压启动电路和完善的保护功能。RFcednc
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降压电感特写。RFcednc
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输出滤波电容规格为25V47μF。RFcednc
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另一路降压芯片丝印BCDOJ。RFcednc
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贴片降压电感特写。RFcednc
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连接NTC热敏电阻的插座特写。RFcednc
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吹风机进气口设有不锈钢滤网，并设有磁铁吸附固定保护罩。RFcednc
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不锈钢滤网由塑料骨架支撑。RFcednc
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骨架内部为供电导线。RFcednc
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取下功能按键和电源开关，继续拆解手柄。RFcednc
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取下手柄外壳，内部设置电源开关和按钮开关。RFcednc
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电源开关和按钮开关设有保护罩。RFcednc
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电源开关和按钮开关特写。RFcednc
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功能按键通过导线焊接连接。RFcednc
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微动按钮开关特写。RFcednc
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滑动点隐患开关特写。RFcednc
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手柄与外壳接缝处设有胶水密封。RFcednc
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拧开手柄的固定螺丝，拆解打开手柄外壳，在手柄内部设有无刷电机。RFcednc
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无刷电机外套蓝色硅胶套密封减震。RFcednc
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蓝色硅胶套特写。RFcednc
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无刷电机来自深圳市恒然电机有限公司，额定电压310V，额定功率60W，额定转速110000r/min。RFcednc
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电机尾部焊接接线插座。RFcednc
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风机前端扇叶特写。RFcednc
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继续拆解取出发热丝组件部分。RFcednc
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盖板通过螺丝固定。RFcednc
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取出盖板，露出内部的发热丝组件。RFcednc
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取出发热丝组件部分。RFcednc
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发热丝模块一览，上方设有双金属片温控器，在右侧为负离子发生器。RFcednc
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接线使用铆钉铆接连接。RFcednc
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负离子发生器来自东莞市南柏电子。RFcednc
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双金属片温控器特写，用于过热保护。RFcednc
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蛇形发热丝特写，外层设有云母板隔热。RFcednc
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另一面设有温度保险丝和NTC热敏电阻。RFcednc
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温度保险丝特写。RFcednc
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用于检测温度的热敏电阻特写。RFcednc
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导线端子均通过铆接连接。RFcednc
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全部拆解一览，来张全家福。RFcednc
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充电头网拆解总结RFcednc
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充电头网采购的这款白牌高速吹风机内置11万转高速电机，具备电源开关和档位选择，并通过灯光颜色指示档位状态。吹风机内部均使用国产方案，采用中微MCU进行电机运行控制，并使用华润微半桥芯片驱动。使用非隔离降压芯片为MCU和半桥芯片供电。RFcednc
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电吹风内部发热丝固定在云母支架上，配有热敏电阻检测温度。热敏电阻，温度保险丝和双金属片温控器均采用铆钉固定。无刷电机外套硅胶套进行缓冲。吹风机手柄和壳体均为两层设计，提升防护性能，整体设计用料都很可靠。RFcednc
责编：Ricardo
最前沿的电子设计资讯
