| 摘要 |
The invention aims to provide an illumination device which has the advantages that the cost is low, the heat dissipation effect is good, a person is not scalded if the person directly contacts the illumination device, and the like. The illumination device comprises the following structures that: an LED (Light Emitting Diode) base plate unit (1) is arranged on a metal heat-conducting plate (3) with high heat conductivity, and resin heat-radiating plates (4, 5) with high heat dissipation and low heat conductivity are closely adhered onto two fully exposed surfaces of the heat-conducting plate (3), except a part for mounting the LED base plate unit (1); and a three-layer structure is formed by the heat-conducting plate and the heat-radiating plates arranged on the two surfaces of the heating-conducting plate, thus heat discharged by the LED base plate unit (1) dissipates in the heat-conducting plate, is transmitted to the resin heat-radiating plates (4, 5) and then is exhausted from the resin heat-radiating plates (4, 5) to outdoor air. |
