| 摘要 |
A structure of LED (Light-Emitting Diode) lighting bulb has a fin base, a pillar, a circuit board, an electrical connector, and a cover. The fin base forms a bore extending through a central portion and the bore has an inner circumferential surface forming an internal thread. The pillar has an outer circumferential surface forming an external thread, and the pillar is received and retained in the bore through threading engagement. The circuit board is mounted to an end of the pillar, and the circuit board carries an LED and conductor wires. The electrical connector is recessed to form a hollow configuration having an inside surface forming threading, and is coupled to the pillar through threading engagement while electrically connected to the conductor wires. The cover is mounted to the fin base. The mounting arrangement of the pillar and circuit board facilitates replacement of the circuit board and maintenance. |
