Sensing proximity using structural internal elements as capacitive elements

The invention relates to sensing proximity using structural internal elements as capacitive elements. An electronic device may include a housing, a back cover, a structural member, and a sensing circuit. The housing may at least partially define an interior volume of the electronic device, and the back cover may define at least a portion of the interior volume and may be connected to the housing. The structural member may be disposed against the rear cover and at least partially disposed within the interior volume, the structural member including an electronic component. The sensing circuit may be disposed in the interior volume and electrically coupled to the electronic component. The sensing circuit may detect an amount of charge of the electronic component as part of a user proximity sensor of the electronic device. 本公开涉及使用结构内部元件作为电容元件来感测接近度。一种电子设备可包括外壳、后盖、结构构件和感测电路。该外壳可至少部分地限定该电子设备的内部体积，并且该后盖可限定该内部体积的至少一部分并可连接到该外壳。该结构构件可抵靠该后盖设置并且至少部分地设置在该内部体积内，该结构构件包括电子部件。该感测电路可设置在该内部体积中并且电耦接到该电子部件。该感测电路可检测作为该电子设备的用户接近度传感