Thermal solution for bulb lamps

Thermal solution for bulb lamps

Overview of LED bulbs:

The bulb is also called bulb string, bulb chandelier, bulb panel, etc.

The LED bulb adopts the existing interface method, namely screw and socket (E26\E27\E14\B22, etc.), and even imitates the shape of the incandescent bulb in order to meet people’s usage habits. Based on the unidirectional light-emitting principle of LED, the designer made changes to the lamp structure to make

The light distribution curve of the LED bulb is basically the same as the point light source of the incandescent lamp.

bulb lamps

The structure of the LED bulb:

The structural components of the LED bulb are: driver, lamp bead, lamp bead substrate, radiator, PC cover, PBT shell, and lamp cap.

Thermal solution for bulb lamps

Glue requirements for LED bulbs:

Glue requirements for LED bulbs:

  1. Temperature resistance -50~150℃;
  2. Drive power potting and heat conduction;
  3. High bonding strength between lampshade and base;
  4. Environmental protection, non-toxic, no volatile VOC emissions to the environment;
  5. The circuit board is moisture-proof, anti-static, shock-proof, dust-proof, mildew-proof and salt-fog proof.

Glue scheme for LED bulbs:

Glue position for LED bulbGlue function categoryFeatures of glue application
Lampshade and baseThermally conductive adhesive sealantHigh bonding strength, no yellowing occurs under high temperature and strong ultraviolet rays after curing, and the material properties are stable
drive powerThermally conductive potting compoundPotting protection, insulation, moisture-proof, shock-proof, dust-proof, anti-corrosion, anti-aging
Heater dissipates heatThermal GreaseExcellent heat resistance and thermal conductivity, good thermal conductivity, temperature range -50~200℃
circuit boardThree-proof glueGood protective performance, dustproof, moistureproof, antistatic, shockproof

Due to different operating environments and processes, the glue application plan is different; for more detailed plans, please contact Cohetion

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