Connection structure of LED lamp holder and heat radiation fins

A connection structure of an LED lamp holder and heat radiation fins, comprising a heat radiation fin module, a heat radiation core pipe and an insulation connector;

• the heat radiation fin module comprising a plurality of heat radiation fins surrounding the heat radiation core pipe, each heat radiation fin having an insertion portion and a stop tab at a distal end thereof;
• the heat radiation core pipe comprising an illumination base containing a plurality of LEDs;
• the insulation connector being a hollow housing, the insulation connector having an opening at an upper end thereof, a threaded portion at a lower end thereof, and a plurality of engaging hooks and engaging holes around the opening corresponding to the heat radiation fins;
• wherein the heat radiation fins are coupled to the heat radiation core pipe, the insertion portions of the heat radiation fins hold against the engaging hooks and are inserted in the engaging holes of the insulation connector, an end surface of the stop tab of each heat radiation fin holds against the respective engaging hook, so that the insulation connector and the heat radiation module are connected.