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Application of thermal conductive adhesive in LED lighting fixtures

Time:2024-05-24 Views:131
       LED lighting, known as the fourth generation lighting technology, has been continuously recognized and favored by the market due to its many advantages. Various enterprises are also deepening their research and development of LED lighting fixtures, and the heat dissipation problem of LED lighting fixtures is one of the key factors restricting their performance.
Thermal conductive adhesive is a type of adhesive with good thermal conductivity, usually composed of organic compounds and thermal conductive particles. Mainly filling gaps to transfer heat, completing the heat transfer between the heating and cooling parts. Its main characteristics are good thermal conductivity, good insulation performance, strong adhesion, and long service life. In the manufacturing of LED lighting fixtures, thermal conductive adhesive is widely used in the bonding of thermal conductive materials such as radiators, heat sinks, and heat sinks to improve the heat dissipation effect and stability of LED lighting fixtures. This article will introduce the thermal conductivity mechanism, selection, and application of thermal conductive adhesive.
       Thermal conductive adhesive has good thermal conductivity, mainly due to the addition of thermal conductive fillers in the matrix resin, such as metal powder, ceramic powder, etc. Thermal conductive materials can quickly conduct heat and form a uniform thermal conductive layer in LED lamps while forming adhesive. The thermal conductivity mechanism of thermal adhesive is relatively stronger than traditional mechanical fastening methods. It not only has stronger adhesion, but also forms an efficient thermal conductivity layer in LED lamps, improves the heat dissipation performance of LED chips, avoids chip damage caused by overheating, and extends the service life of LED lamps.
Selection of thermal conductive adhesive
       Choosing a suitable thermal adhesive is the key to ensuring good heat dissipation of LED lighting fixtures.

When selecting thermal adhesive, attention should be paid to the following aspects:

1. Thermal conductivity of thermal conductive adhesive: The thermal conductivity of thermal conductive adhesive directly determines its thermal conductivity. Generally, the higher the thermal conductivity, the better the thermal conductivity.
2. Temperature resistance of thermal adhesive: When LED lamps are used, the chip will continuously generate heat, and the thermal adhesive needs to be able to operate in high temperature environments without failure.
3. Operating performance of heat transfer adhesive: The operating performance of heat transfer adhesive is also a factor to be considered when selecting, such as gel time, viscosity, hardness, etc.

Application of thermal conductive adhesive

The coating of thermal conductive adhesive can form a uniform thermal conductive layer between LED chips and thermal conductive materials, tightly fixing LED chips and heat sinks to achieve a dual effect of thermal conductivity and heat dissipation. At the same time, thermal conductive adhesive can also optimize the design of LED lighting fixtures, reduce the volume of LED lighting fixtures, improve the heat dissipation efficiency of lighting fixtures, and enhance the reliability and stability of lighting fixtures.
matters needing attention

When using thermal conductive adhesive, the following points should also be noted:

1. Remove impurities such as dust and oil from the surface of the adhered material, ensuring that the thermal conductive adhesive can be evenly applied to the surface of the thermal conductive material.
2. According to the characteristics of the thermal conductive adhesive, apply it appropriately as required to avoid the thermal conductive adhesive coating being too thick or too thin, which may affect the heat dissipation performance of LED lamps.
3. Choose appropriate thermal conductive adhesive coating tools and techniques to ensure uniform coating and good pressure balance.

Thermal conductive adhesive is a very important auxiliary material. Suitable thermal conductive adhesive plays an important role in improving the performance of LED lighting fixtures, avoiding damage to LED chips, prolonging the lifespan of LED lighting fixtures, and improving the efficiency and stability of LED lighting