Patent ID: 8408750
Filing Date: 2013-04-02
Classification: F21K,F21V,F21Y

Abstract:
1. An LED illuminating device, comprising: a hollow base comprising a first end and a second end opposite to the first end, the hollow base comprising a circumferential wall, and a plurality of rows of vents defined in the circumferential wall of the hollow base, each of the rows of the vents being arranged along a direction from the first end to the second end, each of the rows of the vents including an intake vent adjacent to the first end and an outlet vent adjacent to the second end; an LED substrate mounted on the first end of the hollow base and comprising a plurality of LEDs; a driving circuit module accommodated in the hollow base and electrically connecting with the LEDs; and a space formed between a circumferential wall of the driving circuit module and an inner surface of the circumferential wall of the hollow base, the space being communicated with the vents; wherein the intake vents are configured for introducing cold air to the space and the outlet vents are configured for allowing hot air in the space to exit therethrough.