LED light bar

Abstract

The invention provides an LED light bar. The LED light bar is provided with a radiating bracket, wherein the radiating bracket comprises a radiating groove and a fixing strip which are designed integrally; the fixing strip is used for connecting the radiating bracket with a light panel; the radiating groove adopts a shovel teeth-type radiating fin and is a transversal radiating groove; and the transversal width of the shovel teeth-type radiating fin is larger than that of the fixing strip, so that the part of the transversal radiating groove, which exceeds the fixing strip in the width direction, is hollowed out. As the part of the transversal radiating groove, which exceeds the fixing strip in the width direction, is hollowed out, the LED light bar has the advantages that on one hand, the heat quantity of the fixing strip can be transferred to the whole radiating groove, except the part of the radiating fin right above the fixing strip, the hollowed out part of the radiating fin can take part in conducting the heat quantity of the fixing strip, and the hollowed out area can obtain external air to form natural upward air convection; on the other hand, the radiating groove, which is completely transversal, is greatly reduced in transversal width while being compared with a longitudinal radiating groove, so that the radiating rate is higher. Moreover, the hollowed out part of the radiating groove can guide rainwater out fast.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to an LED light bar. Background technique [0002] As the fourth-generation lighting source, LED is more and more well-known, and its advantages of energy saving and environmental protection are particularly prominent in the field of indoor and outdoor lighting. It can be known from many LED application schemes that LED light sources are widely used in outdoor street lights, tunnel lights, and indoor lights in the form of light bars, and the key technical indicators of LED light bars are heat dissipation, light efficiency, and waterproof and clean. [0003] Such as the current high-power LED street lamp, its more advanced technical solution adopts the parallel design of multiple light bars. For example, the application date is October 26, 2009, and the Chinese invention patent application number 200910110334.3 discloses a technical solution for LED street lamps, which includes at ...

AI Technical Summary

Problems solved by technology

Because the LED light source is located in the depth of the fixed groove 111, the groove wall limits the irradiation angle of the LED light source, so the irradiation angle of the entire light bar 10 is greatly limited, and the planar shape of the light outlet cover 14 has a great impact on the LED light source itself. The angle of illumination has little effect, which limits the overall light effect of the LED strip

[0007] In terms of cleaning, since the cooling groove 110 is completely located on the upper end area of ​​the fixing groove 111, the longitudinal cooling grooves 113 on both sides of the fixing groove 111 surround the whole cooling groove 110 into a bottom closed groove area, so that the inside of the cooling groove 110 Dust and other impurities are not easy to be washed away by rainwater, and long-term accumulation will reduce the heat dissipation performance of the heat sink 110, and even affect the life of the light source

[0008] Generally speaking, in the technical solution disclosed in the above patent application, the light bar is a popular form used in various types of LED lamps today, and the parallel light bar setting method is the trend of current LED lamps, but its heat dissipation, light effect and Waterproof and cleanliness need to be improved

Images