LED lamp with small surface opening rate
A technology of surface opening ratio and LED lamps, which is applied to components of lighting devices, cooling/heating devices of lighting devices, lighting devices, etc. High porosity and other issues, to achieve the effect of easy installation, adjustable area size, and good flexibility
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[0020] Such as Figure 1 to Figure 4 As shown, the LED lamp with a small surface opening ratio in this embodiment is a high bay lamp, including a radiator 1, a cooling fan 2, a drive circuit board assembly 3, a power box upper cover 31, a power box lower cover 32, and a wind guide Cover 4, top cover 5, LED light source assembly 6, ventilation cover 100, connection and fixing assembly, light-transmitting protective cover 7, reflector 8, lampshade 9, the LED light source assembly 6 includes several LED chips and LED heat dissipation substrates, the The heat sink 1 includes a bottom plate 11, the bottom surface of the bottom plate 11 is a plane, the top surface of the bottom plate 11 is provided with a heat dissipation portion 12, and the heat dissipation portion 12 located at the periphery is in the shape of a sheet, arranged radially along the bottom plate 11 An air duct is formed, and the heat dissipation part 12 located in the center is needle-column to form criss-cross air c...
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