Integral LED blackboard lamp with efficient heat dissipation function

Abstract

The invention relates to the technical field of illumination, in particular to an integral LED blackboard lamp with an efficient heat dissipation function. The integral LED blackboard lamp comprises acasing, a light source module, a spreadlight lens and a driving power supply assembly, wherein the casing is used for sealing a casing cover plate; the light source module is arranged in the casing,and comprises a base plate and a plurality of groups of light emitting units arranged on the base plate; the base plate is tightly attached to the casing; heat of the light emitting units is conductedonto the casing by the base plate; the spreadlight lens covers the light source module; and the driving power supply assembly is arranged outside the casing. The integral LED blackboard lamp with theefficient heat dissipation function has the advantages that the heat can be fast dissipated; the service life of the blackboard lamp is prolonged; the generation of glare is reduced; the visual fatigue cannot be caused; in addition, the applicability is high; and the installation is convenient.

Description

technical field [0001] The invention relates to the field of lighting technology, in particular to an integrated high-efficiency heat dissipation LED blackboard lamp. Background technique [0002] Most of the blackboard lamps currently used in schools are in the form of T8 fluorescent tubes with arc-shaped reflector brackets, and their structures are as follows: figure 1 shown. [0003] This light fixture has the following problems: [0004] 1. The installation position of the blackboard light in the classroom is above the blackboard, such as figure 2 shown. Most of the light reflected by this structure reflector irradiates the upper part of the blackboard and the upper wall, but there is not enough light in the area of ​​the blackboard that really needs to be illuminated, resulting in extremely uneven illumination between the lower part and the upper part of the blackboard. [0005] 2. Since the blackboard lamp is installed above the head of the teacher, the direct lig...

AI Technical Summary

Problems solved by technology

Most of the light reflected by this kind of structural reflector hits the upper part of the blackboard and the wall above it, but there is not enough light in the area of ​​the blackboard that really needs to be illuminated, resulting in extremely uneven illumination between the lower part and the upper part of the blackboard

[0005] 2. Since the blackboard light is installed above the head of the teacher, the direct light of the blackboard light with this structure can enter the teacher's eyes, so it is easy to cause the teacher's visual fatigue

[0006] 3. With the popularization of multimedia equipment in classrooms, the installation height of blackboard lights must be higher than that of projection equipment, otherwise, in multimedia applications, blackboard lights will block the projection light of projection equipment and affect teaching

As the installation height of the blackboard lamp increases, the light emitted by the blackboard lamp of this structure to the effective use surface of the blackboard will be less and more uneven

[0007] 4. The light source used in the blackboard lamp with this structure is T8 fluorescent tube (it can be a traditional fluorescent tube or an LED fluorescent tube). As we all know, the use of traditional fluorescent tubes is inefficient and will cause energy waste; using LED T8 fluorescent tubes Because of the limited heat dissipation area of ​​the LED T8 fluorescent tube, the service life of the tube cannot be effectively guaranteed when the 500lx illumination requirement of the blackboard is met.

Images