Low profile LED lamp bulb

摘要

A low profile LED lamp with high efficient heat dissipation is disclosed. Each of the lead frame unit has a left top metal section, left middle metal section, right top metal section, and a top-down tapered metal section. The top-down tapered metal section is bent inwards to form a lead frame bottom cup which is suitable for fitting in the low profile LED lamp.

主权项

1. A light emitting diode (LED) lamp bulb, comprising:
a lead frame comprising a plurality of lead frame units, each lead frame unit among the plurality of lead frame units comprising:
a left top metal section;a left middle metal section connected with a bottom end of the left top metal section in a height direction of the lead frame unit;a right top metal section physically and electrically separated from the left top metal section by a gap in a width direction of the lead frame unit;a right bottom metal section connected with a bottom end of the right top metal section in the height direction of the lead frame unit; anda top-down tapered metal section connected with a bottom end of the left middle metal section in the height direction of the lead frame unit,whereinthe top-down tapered metal section has a portion arranged below the right bottom metal section in the height direction of the lead frame unit, and said portion is electrically isolated from the right bottom metal section,said top-down tapered metal section has a width tapered away from the left middle metal section in the height direction of the lead frame unit, andsaid top-down tapered metal section is bent inwards and towards the top-down tapered metal sections of other lead frame units among the plurality of lead frame units to form a lead frame bottom cup.