| 摘要 |
PURPOSE: A rotatable thermos using a USB is provided to heat coffee, when a user is using a computer, by using electricity supplied through a USB port of the computer. CONSTITUTION: A rotatable thermos using a USB comprises a lid(1), a main body, a button(11), and a power supply device(5). The main body is made of stainless steel having low heat transfer coefficient. The main body is made in double structure. Buttons control function. The power supply device supplies the electricity power by using a USB port. |
