Patent ID: 9739469
Date: 2017-08-22
CPC Classifications: F21K,F21V

Claim:
1. A lighting device comprising: a light emitting module; a middle body which is provided on the light emitting module; a heat sink fan which is provided on the middle body; an upper case which is provided on the heat sink fan and is coupled to the middle body; and a lower case which is provided under the middle body and is coupled to the middle body, wherein the lower case has an air inlet, wherein the air inlet is connected to a first space between the heat sink fan and the upper case, wherein die first space is a closed space formed by the heat sink fan and the upper case, wherein the middle body has a first air path connecting the air inlet with the first space, wherein the middle body has an air outlet disposed at a side surface of the middle body and in communication with an outside directly, wherein the air outlet is connected to a second space between the middle body and the heat sink fan, wherein the middle body has a second air path connecting the air outlet with the second space, wherein the heat sink fan is disposed between the middle body and the upper case, wherein the heat sink fan injects air m the direction of the second space from the first space, wherein air introduced through the air inlet comes into the first space by the fast air path of the middle body, the air in the first space moves to the second space by the heat sink fan, and the air in the second space is emitted through the air outlet by the second air path of the middle body, the middle bode includes a top surface and a bottom surface, wherein the side surface of the middle body connects the top surface of the middle body and the bottom surface of the middle body, wherein the light emitting module is provided on the top surface of the middle body, and wherein the heat fan is provided between the bottom surface of the middle body and the upper case.