| 摘要 |
PURPOSE:To improve the facility of the DC power source device by a method where in a device with another facility having a exclusive power source is added to the DC power source device and a charging apparatus incoporated a storage battery is connected to the DC power source device. CONSTITUTION:A plug 11 of the DC power source device 10 is usually inserted into a plug socket etc. and is inputted at all times. A watch unit 19 is operated by the power from the DC power source device 10. When an electric razor 1 is charged, an insulating part of the outer circumference portion in a connecter 16 cuts off the conduction between a plug contact spring and a plug pin. A closed circuit is made between a battery 5 and DC power source device 10, and the battery 5 is charged. When the razor 1 is used, the plug pin and a plug contact spring are contacted, the circuit as the electric razor is made, and the circuit is opened and closed by an operation of a switch 4. |
