Patent ID: 9200786
Filing Date: 2015-12-01
Classification: F21K,F21V,F21Y

Abstract:
1. A wide-angle LED lamp with obliquely-placed LED boards, comprising a lamp cap, a base, a stopper, a lamp body, and a lamp cover that are successively connected, the lamp cover being fastened to the lamp body, the base being sleeved with the lamp body, and the base receiving a longitudinally-arranged LED driver PCB, wherein the lamp body is composed of a heat radiation cup, a cylinder step protruding from the top of the heat radiation cup, a pyramidal frustum protruding from the cylinder step, an inner groove molded at a junction between the pyramidal frustum and the cylinder step, an outer circular recess molded at a junction between the cylinder step and an edge of the heat radiation cup, two screw holes respectively opened at the bottoms of two opposite facets of the pyramidal frustum, a round tube having a consistent diameter throughout its length and molded in both the heat radiation cup and the cylinder step, and a perforation opened in the pyramidal frustum and communicating with the round tube; an annular PCB sleeves the pyramidal frustum through an inner prism-shaped hole of the annular PCB to contact the cylinder step; a plurality of LED boards cover facets of the pyramidal frustum, the bottom of each LED board is inserted into both the inner prism-shaped hole of the annular PCB and the inner groove of the lamp body, the tops of all the LED boards are covered with a fixing cover, a screw screwed into both of a center hole of the fixing cover and a screw hole at the top of the pyramidal frustum connects the fixing cover to the pyramidal frustum, and thereby fixing the LED boards; each of two screws is screwed into the screw hole of the pyramidal frustum of the lamp body, a screw hole opened in a circular plate of the stopper and positioned right under the screw hole of the pyramidal frustum and a screw hole opened in an opening end of the base to make the lamp body and the stopper connected with the base; an end of the lamp cover is fastened into the outer circular recess of the lamp body.