A heat dissipation device for LED lamp

By employing a combination design of thermal grease, heat sink fins, fan, and graphite thermal film in LED lights, the problem of low heat dissipation efficiency of LED lights is solved, achieving efficient heat dissipation and dust protection, and extending the lifespan of LED lights.

CN224381454UActive Publication Date: 2026-06-19SHENZHEN LUOCHUAN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN LUOCHUAN TECHNOLOGY CO LTD
Filing Date
2025-09-12
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing LED lamp heat dissipation devices have low heat dissipation efficiency and cannot quickly dissipate the heat generated by the LED chips, resulting in increased junction temperature and affecting the performance and lifespan of the LED chips.

Method used

Thermal grease is applied between the heat sink and the lamp board, combined with heat sink fins and a fan for active heat dissipation. Heat is actively absorbed by the graphite thermal film inside the transparent shell, and the transparent shell is fixed by annular grooves and threaded connections, forming multiple heat dissipation paths. It also features a dustproof mesh for easy disassembly.

Benefits of technology

It achieves efficient heat dissipation, avoids heat accumulation, extends the lifespan of LED lights, and improves the working performance and stability of LED chips.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a heat dissipation device for LED lamps, including a heat sink and a lamp plate. LED beads are mounted on the lamp plate, which is located in the middle of the upper part of the heat sink. A layer of thermally conductive silicone grease is coated between the bottom surface of the lamp plate and the upper surface of the heat sink. This invention increases the heat dissipation area, dispersing concentrated heat to the surfaces of multiple fins. Combined with an active fan at the bottom of the housing, a directional airflow is formed to quickly remove heat from the fins, and the hot air is discharged through vents on both sides of the housing. This achieves a synergistic effect of "passive heat dissipation (fins) + active heat dissipation (fan)," preventing heat accumulation. The graphite thermally conductive film inside the transparent housing actively absorbs radiant heat around the lamp plate, and conducts heat to the heat sink through the threaded connection between the transparent housing and the heat sink, supplementing the heat dissipation path and further reducing the ambient temperature around the lamp plate, alleviating the problem of a "closed thermal environment."
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