Patent ID: 8847473

Claim:
A self-cooling screw bulb-type electromagnetic induction lamp, comprising: a bulb body ( 1 ), an inner tube ( 16 ), amalgam ( 15 ) and a coupler, wherein the inner tube ( 16 ) is arranged inside the bulb body ( 1 ), and the coupler is arranged inside the inner tube ( 16 ); besides, the lamp further comprises a screw-type lamp cap ( 2 ) and a radiating piece, wherein the bulb body ( 1 ) is connected on the screw-type lamp cap ( 2 ) through the radiating piece, and the coupler is connected with the radiating piece, wherein the radiating piece comprises a heat-conducting piece ( 3 ), a metal lamp cap cover ( 4 ) and more radiating fins ( 12 ); the heat-conducting piece ( 3 ) is arranged below the metal lamp cap cover ( 4 ) and is connected with the coupler; the radiating fins ( 12 ) is arranged in order on the outer wall of the metal lamp cap cover ( 4 ); and the bulb body ( 1 ) is connected on the screw-type lamp cap ( 2 ) through the metal lamp cap cover ( 4 ) and the heat-conducting piece ( 3 ), wherein the amalgam ( 15 ) is arranged at the bottom of the bulb body ( 1 ) and inside the metal lamp cap cover ( 4 ), wherein a radiating window ( 13 ) is arranged on the position of the metal lamp cap cover ( 4 ) corresponding to the amalgam ( 15 ), wherein a through hole ( 18 ) interconnected with the inner tube ( 16 ) is arranged on the bulb body ( 1 ), and the lower end of the inner tube ( 16 ) is interconnected with the radiating window ( 13 ).