| 摘要 |
PURPOSE: A portable multifunctional charging device is provided to improve charging efficiency by charging a battery and a solar cell plate simultaneously. CONSTITUTION: A bag(10) is the shape of a square box. A solar cell plate(30) is formed on the front of the bag and opened upwardly by a hinge section(31). A multistage diaphragm(11) is formed in the bag and divides a space into an upper layer, a lower layer and a middle layer. The solar cell plate exposes a solar cell to the outside. A generator(20) and a battery(50) are arranged in the lower layer. A circuit board including an SMPS(62), a DC-DC converter(40) and a DC power supply(63) are embedded in the middle layer. A high efficient LED bulb(70) for emergency is embedded in the upper layer. |
