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拆解报告:摩托罗拉50W立式无线充电器

 1 year ago
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在8月11日,摩托罗拉推出了RAZR 2022、X30 Pro、S30 Pro三款机型,其中X30 Pro支持125W有线快充,支持50W无线快充。搭配的无线充电器由立讯精密代工,跟随手机同步发售。无线充支持50W输出功率,内置双线圈,支持手机垂直和水平放置。 

这款充电器采用白色机身,底部内置风扇用于散热,吹走手机无线充电产生的热量,降低温升,让大功率无线充电持续时间更长。下面充电头网就对这款无线充进行拆解,一起来看看里面的设计。 

摩托罗拉50W立式无线充电器外观

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 摩托罗拉这款50W立式无线充电器采用一体式塑料外壳,表面喷砂处理,整体端庄简洁。 

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 支撑板倾斜设计,防止手机外翻以及提供用户很好的视觉体验。底部支撑平台外套软胶垫,增大摩擦提升稳定性以及可以防磕碰,给手机更好的保护。 

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 支撑板正面覆盖玻璃板,中心设计有摩托罗拉品牌logo。 

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 支撑板两侧设有灰色凸起小板,手机放上去便会自然形成风道。 

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 底部设有出风口,无线充电时内置风扇便由该口吹出冷风将充电过程中产生的热量带走,达到主动散热效果。 

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 立式无线充电器背面一览,边缘倒角设计。 

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 USB-C供电接口特写,端口处凹槽设计可以固定线缆避免脱落,达到稳定充电,设计细节讲究。 

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 机身底部设有LED灯环、防滑胶垫以及进气窗口,外壳上印有产品参数和认证信息,通过了qi、NOM、UKCA、CE、FCC认证。 

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 胶垫特写,凸起设计防滑同时避免底部磨损。 

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 产品型号为MW-02,支持5-20V3.5A输入,最大输出功率50W,由知名大厂立讯精密代工生产。 

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 拿在手上的大小直观感受,立式机身加持下,性能实用同时不占用桌面空间。 

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 测得产品净重约为190g。 

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 接通电源底部LED灯圈亮淡蓝色光,将氛围灯设计在底部既方便夜间使用,同时又不会刺激用户眼睛,细节满满。 

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 产品使用场景一览,支持横放竖放无线充电,满足同时充电以及接收消息或刷剧。 

摩托罗拉50W立式无线充电器拆解

 对摩托罗拉这款50W立式无线充电器有了基本了解后,下面继续对其进行拆解,看看用料做工如何。 

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 撕下底座的胶垫,固定螺丝隐藏在胶垫下面。 

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 拧下螺丝,拆下后盖,后盖通过导线连接灯板。 

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 灯板通过连接器连接导线供电。 

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 拆下后盖上的灯板,灯板通过双面胶固定,同时起到遮光作用。 

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 灯板上共焊接25颗贴片LED,用于提供均匀的灯光。 

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 贴片LED灯特写。 

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 充电器底部是一个散热风扇,在无线充电时开启,利用空气流动吹走热量。 

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 散热风扇通过螺丝固定。 

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 手机托架使用螺丝固定。 

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 拆下散热风扇,在风扇下面是支架,用于固定PCBA模块。 

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 PCBA模块连接USB-C接口排线,通过导线连接风扇和LED灯板。 

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 风扇和LED灯板连接插口特写。 

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 风扇来自StonePlus垒石,型号SBA0608A05M,工作电压5V,电流0.45A。据立讯精密透露,后续机型主要会使用鸿盈B65D7HB2223风扇,工作电压5V,电流0.4。 

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 拆下塑料支架,露出PCBA模块。 

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 PCBA模块顶部焊接无线充线圈,正面焊接屏蔽罩,底部焊接固态电容和电感。 

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 NTC热敏电阻和无线充电线圈焊点特写。 

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 无线充主控芯片和开关管均内置在屏蔽罩内部,外围焊接滤波电容和电感等元件。 

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 USB-C接口排线焊接在主板背面,底部还焊接NPO谐振电容。 

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 USB-C母座过孔焊接固定在小板上,点焊金属压板固定。 

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 USB-C母座来自KRCONN精睿兴业。 

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 一颗固态电容用于输入滤波,来自PolyCap柏瑞凯,为VN小型化SMD产品,容量为47μF,耐压35V。据充电头网拆解发现,柏瑞凯的SMD产品在手机快充、车充和无线充上应用非常广泛。 

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 6R8合金电感用于输入升压。 

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 两颗同步升压开关管来自AOS万代,型号为AONR66406,是一颗耐压40V,导阻5mΩ的NMOS,两颗组成半桥用于升压。 

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 升压输出的两颗滤波固态电容与输入滤波电容相同,也是来自PolyCap柏瑞凯的VN小型化SMD产品。 

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 主板正面焊有屏蔽罩,并贴有铜箔屏蔽。 

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 撕下铜箔,屏蔽罩内部填充绿色导热凝胶。 

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 拆下屏蔽罩,导热凝胶为无线充电全桥MOS管和切换MOS管散热。 

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 无线充电主控来自易冲无线,型号CPS8100,是一颗高度集成的无线充电发射芯片,支持3.9~26V输入电压。芯片内部集成降压转换器,线性稳压器,全桥驱动电路,集成调制解调电路和多通道12位ADC,内置ARM处理器内核,具有最大的灵活性,并具有极低的待机功耗。 CPS8100支持QC2.0/QC3.0/PD3.0/SCP/AFC快充取电,芯片内部集成3对半桥驱动器,支持降压或升压转换,可用于定频调压无线充控制。芯片支持过电压,过电流和过热保护,采用QFN6*6-48封装。  

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 CPS8100是易冲于2019年推出的一款高性价比的SOC TX 芯片, 迄今已出货超40KK~。 它被作为首选方案,广泛应用在华为、荣耀、MOTO摩托罗拉、三星等客户的高性能无线充电产品中。 它的车规版本CPSQ8100 也通过了AECQ-100的认证, 在比亚迪, 问界等客户的车型大批量量产出货。  

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 40.000MHz晶振为无线充电主控提供时钟。 

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 丝印120Y的降压芯片为无线充电主控供电。 

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 屏蔽罩内部八颗MOS管分别用于无线充电全桥驱动和线圈切换。 

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 两组共6颗NPO电容分别用于两个线圈谐振。 

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 白色插座用于LED氛围灯供电,黑色插座用于风扇供电,接口采用英文标注了定义。 

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 最后拆下无线充盖板,盖板通过卡扣和胶水固定。 

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 隔磁片上面粘贴两个无线充电线圈和热敏电阻,满足手机垂直和水平放置需求,热敏电阻用于检测无线充电时的温升。 

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 全部拆解一览,来张全家福。 

充电头网拆解总结

 摩托罗拉这款50W无线充电器采用白色外壳,立式设计,配有USB-C接口,支持手机横放和竖放,使用十分方便。无线充内置风扇散热,能够及时带走大功率无线充电产生的热量,稳定充电不降速。在无线充底部还有一圈氛围灯,提示用户无线充电器已经通电,随时可以使用,细节到位。 

充电头网通过拆解了解到,摩托罗拉50W无线充电器由大厂立讯精密代工生产,设计用料都十分讲究。底部采用离心风扇将空气从无线充电器与手机之间的间隙吹出,带走热量。无线充内部采用易冲无线方案,搭配AOS万代开关管。内部升压电路的输入、输出滤波电容均来自柏瑞凯。内部做工精细,用料可靠,外观精致,简洁实用。


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