前言
充电头网采购了BYD比亚迪7kW壁挂式交流充电桩,这款充电桩型号为KDNT/BYD-GA7,最大充电电流为32A。充电桩支持刷卡充电和即插即充两种使用方式,适合不同环境安装。充电桩自带5米长充电线,并在充电桩机身上设有插座,用于收纳充电枪。
充电桩机身上设有充电和故障指示灯,用于指示充电状态以及故障信息,便于用户了解情况。充电桩侧面设有急停按钮,在紧急情况可以立刻断开充电桩电源输出。下面就带来比亚迪这款7kW壁挂式交流充电桩的拆解,一起看看内部的用料和做工。
比亚迪7kW壁挂式交流充电桩外观
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702301964.jpeg?x-oss-process=style/cdt800w)
购买比亚迪7kW壁挂式交流充电桩,除了产品本体外,还有背部安装钣金、M4螺钉、膨胀胶塞、NFC卡片、合格证等。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702302781.jpeg?x-oss-process=style/cdt800w)
比亚迪7kW壁挂式交流充电桩包括充电盒、线缆以及充电枪头。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702302535.jpeg?x-oss-process=style/cdt800w)
充电盒为前后合封结构设计,主体采用PC防火材质,前后外壳白、灰配色,整体样式不规整,但做了对称设计。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702303426.jpeg?x-oss-process=style/cdt800w)
机身正面上方印有BYD品牌。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702303054.jpeg?x-oss-process=style/cdt800w)
下方设有充电指示灯、故障指示灯以及刷卡区标识。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702303456.jpeg?x-oss-process=style/cdt800w)
充电枪座特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702303791.jpeg?x-oss-process=style/cdt800w)
机身一侧设有急停按钮。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702304364.jpeg?x-oss-process=style/cdt800w)
侧面红色急停按钮特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702304526.jpeg?x-oss-process=style/cdt800w)
另一侧贴有产品铭牌。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702305076.jpeg?x-oss-process=style/cdt800w)
产品铭牌特写
产品型号:KDNT/BYD-GA7
输入电压:220V~
输入电流:Max. 32A
输出电流:220V~
输出电流:Max. 32A
输出功率:7kW
频率:50/60Hz
防护等级:IP55
重量:3.6kg
使用环境:室内或室外
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702305870.jpeg?x-oss-process=style/cdt800w)
机身底部设有电网输入接口和充电枪接口。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702305255.jpeg?x-oss-process=style/cdt800w)
机身背面设有接线仓,盖板使用螺丝固定。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702310495.jpeg?x-oss-process=style/cdt800w)
接线仓内一览。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702310623.jpeg?x-oss-process=style/cdt800w)
充电枪头符合人体工学设计,机身流线型过渡,显得更加圆润。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702311714.jpeg?x-oss-process=style/cdt800w)
前端外壳亮面处理,并印有BYD品牌。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702313241.jpeg?x-oss-process=style/cdt800w)
充电枪头前端一览。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702313147.jpeg?x-oss-process=style/cdt800w)
充电枪持握场景一览。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702312667.jpeg?x-oss-process=style/cdt800w)
由于充电盒机身为不规则造型设计,这里进行大体测量,让大家有基本了解,非精确测量。大体测得充电盒机身长度约为37cm。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702311231.jpeg?x-oss-process=style/cdt800w)
机身宽度约为22.5cm。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702313182.jpeg?x-oss-process=style/cdt800w)
机身厚度约为11.7cm。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702370134.jpeg?x-oss-process=style/cdt800w)
测得线缆直径为14.57mm。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702365620.jpeg?x-oss-process=style/cdt800w)
线缆长度约为4.9m。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702365553.jpeg?x-oss-process=style/cdt800w)
最后测得比亚迪7kW壁挂式交流充电桩重量约为3.3kg。
比亚迪7kW壁挂式交流充电桩拆解
看完了比亚迪这款壁挂式交流充电桩的外观,下面就进行拆解,一起看看内部的设计和用料。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702314493.jpeg?x-oss-process=style/cdt800w)
首先拧开机身背面的固定螺丝,拆开充电桩外壳,在壳体边缘设有密封圈用于防水。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702313799.jpeg?x-oss-process=style/cdt800w)
在外壳内部设有指示灯小板和NFC小板,通过排线连接到PCBA模块。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702313378.jpeg?x-oss-process=style/cdt800w)
PCBA模块通过螺丝固定在壳体内部,连接输入输出导线和信号线。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702373615.jpeg?x-oss-process=style/cdt800w)
NFC小板通过排线连接。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702373294.jpeg?x-oss-process=style/cdt800w)
NFC小板使用螺丝固定。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702313883.jpeg?x-oss-process=style/cdt800w)
指示灯小板也通过螺丝固定。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702313212.jpeg?x-oss-process=style/cdt800w)
连接NFC小板和指示灯小板的连接器特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702314518.jpeg?x-oss-process=style/cdt800w)
零序电流互感器采用插接件连接。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702313846.jpeg?x-oss-process=style/cdt800w)
另一个电流互感器线圈也采用插接件连接。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702314517.jpeg?x-oss-process=style/cdt800w)
充电桩连接导线通过螺丝接线柱固定。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702320588.jpeg?x-oss-process=style/cdt800w)
充电桩壳体接线柱特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702381718.jpeg?x-oss-process=style/cdt800w)
急停按钮固定在壳体内部。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702381436.jpeg?x-oss-process=style/cdt800w)
急停按钮来自江阴长江电器。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702315152.jpeg?x-oss-process=style/cdt800w)
连接急停按钮的插接件特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702315951.jpeg?x-oss-process=style/cdt800w)
CP线通过螺丝接线柱固定。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702384379.jpeg?x-oss-process=style/cdt800w)
输出导线通过螺丝压板固定。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702320545.jpeg?x-oss-process=style/cdt800w)
充电桩内部PCBA模块通过螺丝固定。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702321614.jpeg?x-oss-process=style/cdt800w)
充电桩内部NFC小板和指示灯小板以及连接线特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702320292.jpeg?x-oss-process=style/cdt800w)
NFC小板正面焊接NFC通信芯片,MCU,蜂鸣器和稳压芯片。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702391035.jpeg?x-oss-process=style/cdt800w)
小板边缘为印刷NFC天线。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702321245.jpeg?x-oss-process=style/cdt800w)
连接插座用于通信和供电。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702321779.jpeg?x-oss-process=style/cdt800w)
1117 3.3V稳压芯片用于为NFC芯片和MCU供电。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702321875.jpeg?x-oss-process=style/cdt800w)
NFC芯片来自wisesun维晟,型号WS1850S,是一颗符合ISO/IEC4443A/B标准的超低功耗非接触式读写卡芯片,工作频率为13.56MHz,具备SPI接口,I2C接口和UART接口,采用QFN32封装。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702321696.jpeg?x-oss-process=style/cdt800w)
贴片晶振频率为27.120MHz。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702324287.jpeg?x-oss-process=style/cdt800w)
芯片外置的两颗R56绕线电阻特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702322678.jpeg?x-oss-process=style/cdt800w)
MCU来自灵动微,型号MM32F0010,芯片内置ARM cortex M0 32位处理器,最高工作频率为48MHz,内置16KB FLASH和2KB SRAM,具备I2C,SPI和两个UART接口,采用TSSOP20封装。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702324168.jpeg?x-oss-process=style/cdt800w)
MCU外置时钟晶振特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702393641.jpeg?x-oss-process=style/cdt800w)
用于指示工作状态的贴片LED特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702324264.jpeg?x-oss-process=style/cdt800w)
用于刷卡提示的蜂鸣器特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702324177.jpeg?x-oss-process=style/cdt800w)
指示灯小板焊接电阻和LED指示灯和连接器。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702323710.jpeg?x-oss-process=style/cdt800w)
小板采用铝基板便于散热。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702323761.jpeg?x-oss-process=style/cdt800w)
贴片连接器特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702324047.jpeg?x-oss-process=style/cdt800w)
指示灯采用贴片焊接。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702325752.jpeg?x-oss-process=style/cdt800w)
PCBA模块左侧焊接EMI滤波电路,左下角焊接辅助电源电路。在上方中间位置设有接线柱和继电器,右侧设有MCU用于充电桩整机控制。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702325050.jpeg?x-oss-process=style/cdt800w)
PCBA模块背面焊接电压比较器,降压转换器以及漏电保护器芯片。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702324297.jpeg?x-oss-process=style/cdt800w)
输入端与输出端接线柱特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702324331.jpeg?x-oss-process=style/cdt800w)
输入端设有气体放电管用于吸收过压浪涌。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702330623.jpeg?x-oss-process=style/cdt800w)
压敏电阻规格为14D561K,用于吸收过压浪涌。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702325959.jpeg?x-oss-process=style/cdt800w)
保险丝规格为3.15A250V。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702331238.jpeg?x-oss-process=style/cdt800w)
NTC热敏电阻用于抑制上电的浪涌电流。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702330543.jpeg?x-oss-process=style/cdt800w)
蓝色压敏电阻用于吸收过压浪涌。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702325959.jpeg?x-oss-process=style/cdt800w)
安规X2电容规格为0.22μF。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702325824.jpeg?x-oss-process=style/cdt800w)
共模电感采用绝缘框架绕制。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702325781.jpeg?x-oss-process=style/cdt800w)
安规X2电容来自KYET科雅电子,规格为0.1μF。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702330671.jpeg?x-oss-process=style/cdt800w)
蓝色Y电容来自JK-ET建坤电子。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702331451.jpeg?x-oss-process=style/cdt800w)
另一颗蓝色Y电容同样来自建坤电子。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702331318.jpeg?x-oss-process=style/cdt800w)
整流桥来自SEP威旺电子,型号DB307S,规格为3A 1000V。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702330639.jpeg?x-oss-process=style/cdt800w)
两颗高压滤波电容来自红宝石,为BXW系列长寿命电解电容,规格为450V22μF。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702331534.jpeg?x-oss-process=style/cdt800w)
色环差模电感特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702331238.jpeg?x-oss-process=style/cdt800w)
电源芯片来自艾创微,型号ICW206,是一颗内部集成700V高压功率管的电源芯片,支持18W连续输出功率,峰值输出功率为24W。芯片具有低输出降频功能,待机功耗低于0.1W。芯片采用DIP-7封装,适用于适配器和开关电源应用。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702331531.jpeg?x-oss-process=style/cdt800w)
蓝色高压电容用于RCD吸收电路。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702331467.jpeg?x-oss-process=style/cdt800w)
100μF50V电解电容用于为电源芯片供电。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702331667.jpeg?x-oss-process=style/cdt800w)
电源变压器采用EF20磁芯,磁芯缠绕胶带绝缘。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702331748.jpeg?x-oss-process=style/cdt800w)
蓝色Y电容特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702331970.jpeg?x-oss-process=style/cdt800w)
亿光EL817光耦用于输出电压反馈。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702332136.jpeg?x-oss-process=style/cdt800w)
两颗输出滤波电容规格为1000μF16V。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702332329.jpeg?x-oss-process=style/cdt800w)
隔离电源模块来自AIPULUNION爱浦电子,型号NN2-12D12C3NA,输入电压和输出电压均为12V,最大输出功率为2W。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702332524.jpeg?x-oss-process=style/cdt800w)
黄色自恢复保险丝用于过流保护。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702332783.jpeg?x-oss-process=style/cdt800w)
2.2μH电感用于输入滤波。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702332921.jpeg?x-oss-process=style/cdt800w)
输出滤波电感特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702333127.jpeg?x-oss-process=style/cdt800w)
充电桩主控芯片来自国民技术,型号N32G457VEL7,芯片内置32位ARM Cortex-M4内核,最高主频144MHz,支持浮点运算和DSP指令,集成512KB FLASH和144KB SRAM,集成UART,I2C,SPI,QSPI,USB,CAN和SDIO等通信接口,内部集成密码算法硬件加速引擎,采用LQFP100封装。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702333442.jpeg?x-oss-process=style/cdt800w)
主控芯片外置8.000MHz时钟晶振特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702334329.jpeg?x-oss-process=style/cdt800w)
热敏电阻用于检测充电桩内部温度。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702334710.jpeg?x-oss-process=style/cdt800w)
1117稳压器用于为MCU供电。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702402631.jpeg?x-oss-process=style/cdt800w)
在PCB上还预留显示屏接口。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702335157.jpeg?x-oss-process=style/cdt800w)
电量计量芯片来自合力为,型号HLW0832,是一颗单相计量IC,支持有功功率、视在功率,电压和电流有效值测量。芯片内置振荡器,电压参考和电源监控电路,支持UART通信方式,采用SOP8封装。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702340531.jpeg?x-oss-process=style/cdt800w)
电压互感器来自择明朗熙电子,ZMPT107-1电流型电压互感器,用于采集输入交流电压送至计量芯片。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702335572.jpeg?x-oss-process=style/cdt800w)
复旦微FM2147是高性能漏电保护器专用电路。内部包括稳压电源、放大电路、比较电路、跳闸控制器以及跳闸驱动电路。用于检测输出是否存在漏电进行保护。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702340312.jpeg?x-oss-process=style/cdt800w)
两个电流互感器来自南京圳恒通电子,型号分别为ZHT360-2P和ZHT181G-2P,分别用于充电电流检测和零序电流检测。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702412568.jpeg?x-oss-process=style/cdt800w)
降压芯片来自TI德州仪器,型号TPS54331,是一颗28V输入,3A输出电流的降压转换器,芯片内部集成80mΩ开关管,采用8-pin SOIC封装。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702412428.jpeg?x-oss-process=style/cdt800w)
6.8μH合金电感特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702412051.jpeg?x-oss-process=style/cdt800w)
四路电压比较器来自ST意法半导体,型号LM239,是一颗低功耗四路电压比较器,支持-40~105℃工作温度,采用SO14封装。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702411895.jpeg?x-oss-process=style/cdt800w)
电压比较器来自TI德州仪器,型号LM2903AVQ,为车规级双路电压比较器,符合AEC-Q100标准,采用SOIC8封装。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702340673.jpeg?x-oss-process=style/cdt800w)
亿光EL3H7光耦用于隔离通信。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702343023.jpeg?x-oss-process=style/cdt800w)
继电器来自美硕,型号MPQ1-S-112D-A,内置一组常开触点,线圈电压为12V,触点容量为40A 250V,两颗分别用于火线和零线通断控制。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702342235.jpeg?x-oss-process=style/cdt800w)
接下来拆解充电枪,拧下外壳固定螺丝,拆开充电枪外壳。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702422990.jpeg?x-oss-process=style/cdt800w)
充电枪内部导线直接连接到插头。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702422893.jpeg?x-oss-process=style/cdt800w)
充电枪内部导线固定压板特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702422768.jpeg?x-oss-process=style/cdt800w)
导线通过扎带固定。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702422685.jpeg?x-oss-process=style/cdt800w)
用于检测锁扣闭合的微动开关特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702422871.jpeg?x-oss-process=style/cdt800w)
锁扣打开时的状态特写。
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702420978.jpeg?x-oss-process=style/cdt800w)
全部拆解一览,来张全家福。
充电头网拆解总结
![拆解报告:BYD比亚迪7kW壁挂式交流充电桩KDNT/BYD-GA7-充电头网](https://static.chongdiantou.com/wp-content/uploads/2024/07/2024071702343551.png?x-oss-process=style/cdt800w)
最后附上比亚迪壁挂式交流充电桩核心器件清单,方便大家查阅。
比亚迪壁挂式交流充电桩为单相220V供电,支持7kW充电功率,充电桩内置NFC读卡器功能,支持刷卡使用,满足个人家庭使用。在充电桩机身上设有红绿指示灯,用于指示充电状态和故障信息,并且设有急停按钮,在紧急情况下可以立刻断开充电桩输出。
充电头网通过拆解了解到,比亚迪壁挂式交流充电桩内置NFC读卡器模块,采用维晟WS1850SNFC读卡器芯片搭配灵动微MM32F0010用于通信。采用国民技术N32G457VEL7 MCU用于整机控制,使用合力为HLW0832电能计量芯片用于电压和电流检测,复旦微FM2147进行漏电保护。
充电桩内部电源芯片采用爱创微ICW206,内部高压电容来自红宝石,输入端设有气体放电管和压敏电阻进行过压保护。充电桩壳体内部设有热敏电阻进行过热保护,控制充电输出的两颗继电器来自美硕电子,PCBA整体涂三防漆进行保护,内部做工用料扎实可靠。
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