| 摘要 |
<p>The present invention relates to a head lamp device for a car, which comprises: an LED circuit substrate where an LED light source is mounted on the top and heat generated from the LED light source is conducted through the bottom; a keyhole shaped dovetail coupling groove composed of an inlet unit engraved on the bottom of the LED circuit substrate and has a relatively wide first width, and a slide unit which has a second width relatively smaller than the inlet unit; a heat sink which includes a radiating structure on one side to radiate the heat conducted from the LED circuit substrate, and includes a flattened circuit substrate assembling surface on the other side to adhere to the bottom of the LED circuit substrate; and a dovetail protrusion which protrudes towards the LED circuit substrate by being integrated with the assembling surface, and has a top whose width is smaller than the first width but larger than the second width in order to be inserted into the inlet unit of the dovetail coupling groove to be coupled to the slide unit.</p> |
