| 摘要 |
An LED road lamp includes a heat dissipater module containing circuit boards, LED chips, and a cooling fin seat; and a completely sealed power supply. By directly using the cooling fin seat as an outer cover of a road lamp to contact with atmosphere for cooling, and directly transmitting heat from the LED chips and the circuit boards to a stand pipe, a dual cooling effect is achieved. Heat of the power supply is dissipated from the stand pipe through its sealed outer casing, to largely increase cooling area, lower temperature, and increase a cooling efficiency, preventing the power supply from being affected by ambient weather. Therefore, lifetimes of usage of the LED circuit boards, the LED chips, and the power supply are prolonged, the circuit boards are quickly assembled on and disassembled from a cooling base, and convenience in assembling and disassembling the circuit boards is improved. |
