| 摘要 |
A self electricity-generating roadside lamp that generates electricity using pressure difference, comprising a roadside lamp upright post (1). Multiple wind power generators (2) are provided inside of the roadside lamp upright post (1). A cambered air cap (3) is provided on the upper portion of the upright post (1). A battery (4) and a control circuit (11) are disposed inside of the upright post (1). Multiple air inlets (5) are provided on the lower portion of the upright post (1). The upright post (1) is a semi-cylinder (8) of a transparent material. A salt layer (9) is provided between the semi-cylinder (8) and the upright post (1). On one hand, as an air current passes the cambered air cap (3), the flow speed thereof increases and the pressure decreases, and a high pressure air current flows upward and forms a strong ascending air current. On the other hand, the black salt layer (9) inside of the upright post (1) absorbs the heat from sunlight, and the air that has been heated moves upward and forms another ascending air current. The two ascending air currents push the multiple wind power generators (2) inside of the upright post (1) to rotate and generate power and provide said power to a light emitting part (7) of the roadside lamp for illumination. The maintenance rate is low due to that the electricity generating equipment is inside of the upright post of the roadside lamp; the black salt layer is used as the equipment for solar electricity generation, and is therefore lower in cost and longer in service life. |
