Lighting device and annular radiation structure thereof

Abstract

The invention discloses a lighting device and annular radiation structure thereof. The annular radiation structure is formed by being surrounded by a plurality of radiation units. Each radiation unit comprises a sheet body and at least one combination unit connected with the sheet body so as to combine an adjacent radiation unit.

Description

technical field [0001] The present invention relates to an illuminating device and its ring-shaped heat dissipation structure, in particular to a heat dissipation structure composed of a plurality of heat dissipation units arranged around and assembled with each other. Background technique [0002] There are already many lighting products on the market that use light-emitting diodes (LEDs) as light sources, such as street lamps, wall lamps, desk lamps, bulbs, and lamp tubes. Make sockets that meet general specifications such as E26, E27, MR16, GU4, etc., in order to directly replace traditional light bulbs. [0003] However, in light bulbs that use light-emitting diodes as light sources, the design of heat dissipation is a very important consideration, especially for bulbs with higher power, the design of heat dissipation is more important. Most of the current heat dissipation methods for light-emitting diode light bulbs are Use extruded or die-cast heat sinks for the cooli...

AI Technical Summary

Problems solved by technology

[0003] However, in light bulbs that use light-emitting diodes as light sources, the design of heat dissipation is a very important consideration, especially for bulbs with higher power, the design of heat dissipation is more important. Most of the current heat dissipation methods for light-emitting diode light bulbs are Use extruded or die-cast heat sinks for the cooling fins, see figure 1 , which shows a traditional lamp, including a plurality of light emitting diodes 11, an aluminum substrate 12, a heat conducting sheet 13 and a heat sink 14, the plurality of light emitting diodes 11 are built on the aluminum substrate 12, and the aluminum substrate 12 and the heat sink 14 They are combined through a heat sink 13. Although this method is the practice of most lamps and lanterns at present, if this radiator is used on high-wattage lamps, there may be poor heat dissipation. In addition, aluminum extrusion or die-casting The formed heat sink is limited by the manufacturing process, and the heat sink must have a certain thickness. Therefore, under the limited volume, the number of heat sinks is limited, resulting in the heat dissipation area cannot be increased, and the heat conduction sheet is used to combine the aluminum substrate and the heat sink. , will also add additional material cost

Images