LED LIGHTING DEVICE AND VEHICLE HEADLIGHT HAVING SAME

摘要

An LED lighting device includes an LED module; a light guide member disposed adjacent to the LED module guides light emitted from the LED module towards an object; a heat transfer member coupled to the LED module absorbs the heat from the LED module; a heat-absorbing portion is formed in the shape of a capillary tube, injected with working fluid, and coupled to the heat transfer member so as to absorb heat; and a heat pipe loop provided with a heat-dissipating portion for dissipating the heat absorbed in the heat-absorbing portion. The LED lighting device can have a simple structure without a cooling fan while obtaining a high output by including the heat-dissipating portion which has a large dissipation area and high heat transfer performance. Since heat dissipation can be carried out without an additional cooling device, minor failures can be reduced, and maintenance of the device can be simplified.

主权项

1. An LED lighting device comprising:
an LED module; a light guide member arranged adjacently to the LED module and configured to guide light emitted by the LED module to a target object; a heat transfer member coupled to the LED module and configured to absorb heat from the LED module; and a heat pipe loop formed in the shape of a capillary tube and comprising a heat-absorbing portion coupled to the heat transfer member to absorb heat and a heat-dissipating portion configured to dissipate the heat absorbed by the heat-absorbing portion.