PORTABLE TERMINAL WIRELESS CHARGING SYSTEM HAVING MULTIPLE CONTACT POINTS

• Main Author: MIN JEE HONG
• Format: Patent
• Language: English; Korean
• Published: 03.05.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERATION; INDUCTANCES; MAGNETS; PERFORMING OPERATIONS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SYSTEMS FOR STORING ELECTRIC ENERGY; TELEPHONIC COMMUNICATION; TRANSFORMERS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

An objective of the present invention is to provide a wireless charging system for a portable terminal that can be easily attached to the portable terminal and improve charging efficiency. The wireless charging system for a portable terminal comprises: a terminal accessory fixed to a back surface of the portable terminal and having a built-in transmission coil that generates a magnetic field for wireless charging by magnetic induction; and a wireless charging device that can be coupled to the terminal accessory using a magnetic force. The terminal accessory and the wireless charging device are provided with a first contact and a second contact, respectively, so when the terminal accessory and the wireless charging device are combined, the first and second contacts are in contact with each other, and then power is supplied from the wireless charging device to the transmission coil built into the terminal accessory. Each of the first and second contacts includes a negative electrode and two or more positive electrodes. 본 발명은 휴대용 단말기 무선 충전 시스템에 관한 것으로, 그 시스템은 휴대용 단말기의 배면에 고정되며 자기 유도 방식의 무선 충전을 위해 자기장을 발생시키는 송신 코일이 내장된 단말기 액세서리; 및 단말기 액세서리와 자력을 이용해 결합 가능한 무선 충전 장치;를 포함하며, 단말기 액세서리와 무선 충전 장치에는 각각 제1 접점과 제2 접점이 구비되어 단말기 액세서리와 무선 충전 장치가 결합되는 경우 제1, 2 접점들이 서로 접촉되어 무선 충전 장치로부터 단말기 액세서리에 내장된 송신 코일로 전원이 공급되고, 제1, 2 접점들은 각각 음극 전극과 2 이상의 양극 전극들을 포함한다.