| 摘要 |
The present invention relates to heat spreader pieces for an LED lamp, to a heat spreader for an LED lamp comprising the heat spreader pieces coupled together, and to a tube-type LED lamp having same. The heat spreader is formed by assembling a plurality of separate heat spreader pieces for an LED lamp together in a fixable/replaceable configuration, using simple extrusion molding for the manufacture thereof instead of the difficult die casting employed in the prior art, and cutting and using only required lengths to improve productivity, to more quickly and efficiently dissipate heat generated therein to the outside, while also substantially reducing production costs. The heat spreader for an LED lamp is coupled at the bottom thereof to a socket base and at the top thereof to a circuit board that has a plurality of LEDs or LED chips mounted in an exposed dot configuration to emit light. The heat spreader consists of a plurality of cylindrical LED lamp heat spreader pieces that are interlocked and coupled together. Each heat spreader piece has a plurality of first heat-radiating fins spaced apart in the radial direction on the outside thereof, and a plurality of second heat-radiating fins spaced apart in the circumferential direction on the inside thereof. The spaces between the respective first heat-radiating fins and between the respective second heat radiating fins are opened to the outside. |
