On-line collection device for LED electrothermal signals

The invention discloses an on-line collection device for LED electrothermal signals. The on-line collection device comprises a heating plate, a thermal conducing block arranged on the heating plate, and an LED testing circuit board arranged on the thermal conducing block; a plurality of testing holes used for accommodating LED chips are formed in the LED testing circuit board; a plurality of thermal signal collection holes corresponding to the testing holes are formed in the thermal conducting block; thermocouples used for collecting the LED chip thermal signals are arranged in the thermal signal collection holes and connected with a temperature patrol instrument; and an electric signal input hole and an electric signal collecting hole are further formed in the heat conducting block, a constant flow source supplies current stress to the LED testing circuit board through the electric signal input hole, and an electric signal patrol instrument collects electric signals on the LED testingcircuit board through th