| 摘要 |
A lamp bulb of an energy-saving LED street lamp, comprising a lamp base (1) and a lamp body (2); the lamp body (2) comprises a transparent casing (3), a heat dissipation barrel (4), sealing devices (5, 6), a power supply (7), a light emitting device (8), a heat-conductive transparent liquid, and a first heat dissipation device (22); a heat dissipation drum (4) is arranged inside the transparent casing (3); of both the heat dissipation barrel (4) and the transparent casing, (3) the two ends adjacent to and away from the lamp base (1) are respectively provided with the sealing devices (5, 6) so as to form a sealed cavity (9) between the outer surface of the heat dissipation barrel (4) and the inner surface of the transparent casing (3); the power supply (7) is arranged inside the lamp base (1); the light emitting device (8) is annularly arranged on the outer surface of the heat dissipation barrel (4); the heat-conductive transparent liquid is arranged inside the sealed cavity (9); and the first heat dissipation device (22) is arranged inside one end of the heat dissipation barrel (4) adjacent to the lamp base (1). |
