| 摘要 |
The present invention relates to an LED lighting apparatus and, more specifically, to an LED lighting apparatus installed in a tunnel. The LED lighting apparatus according to the present invention comprises: an LED lighting unit (300) which includes an LED substrate (320) on which a plurality of LED elements (310) are installed, and a heat dissipation unit (330) coupled to the LED substrate (320); a lower housing which is fixed to a structure (2); an upper housing (200) which is provided with an opening portion (210) such that the LED elements (310) are directed to the outside, is fixed and coupled to the LED lighting unit (300), and is coupled through hinge to the lower housing (100) to form an enclosed inner space with the lower housing (100); one or more straight cooling pipes (400) which are installed to penetrate at least one of the lower housing (100) and the upper housing (200), allow the external air to flow from one end to the other end, and cool the inner space heated by the heat dissipation unit (330) of the LED lighting unit (300); and one or more heat transfer members (350) which are installed to come in face contact with the cooling pipes (400) and the heat dissipation unit (330), and transfer heat from the heat dissipation unit (330) to the cooling pipes (400). |
