LED technology offers many advantagesJohn Moot
The world of lighting is inconceivable without LED technology, because it offers so many convincing advantages that nobody can ignore it. With their luminous flux, LED lamps can now replace all lights – from outdoor lights to ceiling lights to wall lights.
And many LED lamps are also dimmable so that users can adjust the brightness of their spotlights themselves.
You can save with LEDs, because the energy consumption is 90 percent less than with the incandescent lamp. LEDS are an energy-saving lighting solution that works entirely without mercury and, thanks to their long service life, produces little waste, and they are also durable (LEDs with a service life of up to 50,000 hours).
LEDs are much more efficient than traditional forms of lighting, but they still generate heat. This heat can have a detrimental effect on the LED and must therefore be dissipated to ensure that the advantages of this technology can be realized.
If excessive temperatures are reached in the structure of the LEDs, especially above the maximum operating temperature of the LED (~ 120-150˚C), effects can occur that lead to a complete failure of the light source.
The operating temperature is directly related to the service life of the LED; the higher the temperature, the shorter the life of the LED.
Since heat is given off by a component on its surface to the environment, the rate of dissipation increases with the surface.
Cooling concepts for LEDs
Heat sinks are used here. Heat sinks can be designed to provide a significantly increased surface area to maximize heat dissipation. Heat sinks are often used in LED applications and are attached to the back of the component. Ideally, the junctions should be perfectly smooth to improve the efficiency of heat dissipation. This is usually not possible. As a result, air gaps are created at the transition between the component and the heat sink, which significantly reduces the efficiency of the heat transfer.
Selection of the correct thermal interface material
There are many ways to improve the thermal management of LED products. Therefore, the right type of thermally conductive material must be chosen to ensure that the desired results in terms of heat dissipation are achieved. The Dr. Dietrich Müller GmbH supports you in the selection of suitable materials.
The Dr. Dietrich Müller GmbH offered thermal interface materials offer different solutions:
the Thermigrease thermal paste is a popular material for dissipating heat, but so are the Thermiflex thermal conductive foils and whether pad thermal mats are used.
Also, the Thermiglue product line, which is a broad delivery program Thermally conductive adhesives, are used in LED applications.
Stamped parts made from thermally conductive material
Dr. Dietrich Müller GmbH has all the processing techniques to produce the required Stanzteile to be delivered (on a roll, in a magazine, or as an individual part).