THERMAL CONDUCTIVITY MEASUREMENT SYSTEM AND THERMAL CONDUCTIVITY MEASUREMENT METHOD THEREOF

摘要

The present invention provides a thermal conductivity measurement system for calculating thermal conductivity by measuring the temperature after cooling and heating both sides of the sample so that the sample such as a heat dissipation pad is in a thermal equilibrium state, maintaining the sample in a state in which thermal equilibrium is reached for a certain period of time, and It relates to a method for measuring thermal conductivity using the same. The present invention includes a lower filler fixing part 120 positioned on one side of the sample for measuring thermal conductivity, an upper filler fixing part 130 positioned on the other side of the sample, and heating one side of the sample. The heating unit 160 that generates heat, the cooling unit 170 cooled to cool the other side of the sample, and the lower side temperature measurement for measuring the first temperature and the second temperature of the lower filler fixing unit 120 . The unit 180, the upper side temperature measuring unit 190 for measuring the third temperature and the fourth temperature of the upper filler fixing unit 130, and the heating temperature measurement for measuring the temperature of the heating unit 160 A thermal conductivity meter 100 including a unit 200 and a control unit 210 for controlling the temperature of the heating unit 160, and a starting point at which the sample becomes thermal equilibrium and thermal equilibrium for a predetermined period of time is maintained In the thermal conductivity measurement system including a measurement server 500 for calculating the thermal conductivity of the sample by detecting the time point after the measurement, the thermal conductivity measuring device 100 includes the lower filler fixing part 120 and the upper filler fixing part The lower cover part for accommodating each of the 130 and sealing the sample positioned between the lower filler fixing part 120 and the upper filler fixing part 130 so as to be in a vacuum state to prevent contact with external air. 140 and the upper cover part 150, and a motor part 220 for adjusting the height or the horizontal of the upper filler fixing part 130 in order to fix the position of the sample according to a preset measurement condition, and , The lower filler fixing part 120 is heated by the heating part 160 so that one side of the sample is heated while seated so that one side of the sample is in contact, and the upper filler fixing part 130 is, The other side of the sample is cooled by the cooling unit 170 so that the other side of the sample is cooled while being in close contact with the lower filler fixing unit 120 in order to come into contact with the other side of the sample, and the inner side of the lower cover unit 140 and between the lower filler fixing part 120, the lower filler fixing part when not heated by the limit of the heating part 160 It includes an auxiliary heating material 141 for additionally transferring heat to one side of the sample by increasing the temperature of the part 120 , and between the upper cover part 150 and the upper filler fixing part 130 . , and an insulating material 151 for protecting the cooling unit 170 from being damaged due to high heat.