Patent ID: 8287161
Filing Date: 2012-10-16
Classification: F21S,F21V,F21Y

Abstract:
1. An LED lamp comprising: a heat sink; a circuit board fixed to the heat sink; a cover fixed to the heat sink, wherein a heat diffusion chamber is defined between the heat sink and the cover; a threaded rod comprising a first end, an opposite second end and a threaded shank, the first end fixed to the heat sink; the threaded shank extending through the circuit board, the heat sink, and the cover, wherein threads are formed in the lateral surface of the threaded shank, to increase a contact area between the threaded rod and the air in the heat diffusion chamber; and a support post and a base, wherein one end of the support post is fixed to the second end of the threaded rod, and an opposite end of the support post is fixed to the base; wherein, the threaded rod, the support post, and the base are made of heat dispersing material with good heat conductivity, heat generated by the circuit board is transferred directly to the threaded rod, and is transferred via the heat sink to the threaded rod, and then is transferred to the support post and the base.