Patent ID: 9160187
Filing Date: 2015-10-13
Classification: H02J

Abstract:
1. An optical charger for charging a battery, comprising: a fixing block for fixing the battery; a plurality of light receivers fixed on the fixing block and configured to convert optical power into electric power to charge the battery; a substrate comprising a loading surface for loading the fixing block; a plurality of light emitters positioned on the substrate, the light emitters facing the light receivers when the fixing block is positioned on the loading surface, the light emitters configured to obtain electrical energy from an external power supply and emit light rays to the light receivers; a pressure sensor configured for sensing whether the fixing block and the battery are positioned on the loading surface, wherein the pressure sensor is exposed from the loading surface, the pressure sensor comprises a sensing module, a storage module, and a comparison module, the sensing module is configured for sensing a press applied thereon to obtain a press value, the storage module stores a predetermined pressure value, the predetermined pressure value is substantially equal to a sum of a weight of the fixing block and a weight of the battery, the comparison module is configured for comparing the obtained pressure value to the predetermined pressure value, when the obtained pressure value is greater than or equal to the predetermined pressure value, the comparison module determines that both of the fixing block and the battery are loaded on the loading surface; and a controller electrically connected to the sensor and the light emitter and configured for controlling to power the light emitters on when the sensor senses that both of the fixing block and the battery are positioned on the loading surface.