| 摘要 |
The present invention relates to a passive heat radiator and a streetlight heat radiating device. The passive heat radiator incIudes a heat radiating base plate (3); a slablike upstanding plate (11) connected to the heat radiating base plate (3) by soldering, and perpendicular to a horizontal plane when the heat radiating base plate is under a mounting status a heat absorbing ending face (12) disposed at one side of the heat radiating base plate (3) deviated from the upstanding plate (11), and adapted to mount a heat generating element; and heat radiating fins (4) connected to a surface of the upstanding plate (11) by soldering, and perpendicular to the horizontal plane when the heat radiating base plate (3) is under the mounting status. The heat radiating device includes a mounting seat (15) and connecting seats (16). The heat absorbing ending face (12) is provided with a bulb holder, or a circuit board is layout in the heat absorbing ending face, and connected with the streetlight bulb by soldering; the mounting seats (15) are connected to the sides of the heat radiating base plate (3) respectively; and the connecting seats (16) are fixed and connected to the sides of the mounting seats (15). The present invention adopts an upstanding plate (11) and heat radiating fins (4) substantially perpendicular to a horizontal plane to form a heat radiating channel with a direction consistent with that of hot air flowing, which improves heat radiating effect. |
