Hello
I'm using Pro Mechanica - Thermal to analyse an LED light fitting. With the LED running at 700mA the Junction Temperature (the areawherethe heatand light is generated/applied)should be around 97degrees, this has been tested in the physical world, and my Mechanica results agree with this, however, the temperature of the rest of the body is about 10degree's different to what it should be!
I've included contact resistance between the different parts (although it's only a guessed value, as I can't find a way of calculating the contact resistance -can anyone can help with this as well?)
I know that the answers will be highly dependant on the guessed 'h' values as well, but i'm confident that the 'h' values are suitable.
tony
I'm using Pro Mechanica - Thermal to analyse an LED light fitting. With the LED running at 700mA the Junction Temperature (the areawherethe heatand light is generated/applied)should be around 97degrees, this has been tested in the physical world, and my Mechanica results agree with this, however, the temperature of the rest of the body is about 10degree's different to what it should be!
I've included contact resistance between the different parts (although it's only a guessed value, as I can't find a way of calculating the contact resistance -can anyone can help with this as well?)
I know that the answers will be highly dependant on the guessed 'h' values as well, but i'm confident that the 'h' values are suitable.
tony