| 摘要 |
The present invention relates to a heat-emitting structure of an LED lamp of a ship for a polar environment, the LED lamp of a ship comprising: an LED light-emitting part having one or more LED chips integrated on a substrate and emitting light if an external power is supplied; a case containing the LED light-emitting part; and a glass bulb combined with the case to protect the LED light-emitting part, and having a lower part opened. The LED lamp of a ship further comprises: a heat transfer part extending toward an inner center from the lower circumference of the glass bulb to be in contact with the upper surface of the substrate and having a central hole formed in the inner middle to be penetrated by the LED chips. The present invention can ensure excellent light output easily and can be applied and used in an environment of temperature below zero as an ice forming phenomenon, which can be generated on the surface of the glass bulb when a ship sails in an environment of temperature below zero, can be prevented stably by conducting heat to the glass bulb via the heat transfer part in direct contact with the substrate having received the heat dissipated through the LED chips. Moreover, an ice forming phenomenon, which can be generated on the surface of the glass bulb, can be prevented more stably by conducting heat made by the LED chips to the heat transfer part while minimizing heat loss to the outside using a heat transfer panel. In addition, the present invention can be applied effectively to a ship exposed to an environment of temperature below zero as the LED light-emitting part can provide more excellent illumination in an environment of temperature below zero. |
