Patent ID: 7581878

Claim:
A measuring system ( 1 ) for determining the approximate maximum thermal conductive capability (Qmax) of a thermal conductive device ( 10 ), the thermal conductive device ( 10 ) to be measured comprising a heating terminal ( 10 a ) and a heat dissipating terminal ( 10 c ), the measuring system ( 1 ) comprising: a heating module ( 80 ), comprising a metal heated block ( 20 ) located at the heating terminal ( 10 a ) of the thermal conductive device ( 10 ), a heating rod ( 25 ) used for heating the metal heated block ( 20 ) to a predetermined temperature, and a heat insulating pressure device ( 30 ′) used for applying a pressure relatively to and covering the surface of the heating terminal ( 10 a ); a heat dissipating module ( 90 ), located at the heat dissipating terminal ( 10 c ) of the thermal conductive device ( 10 ), wherein a cooling device ( 40 ) cools the heat dissipating terminal ( 10 c ) and a cooling pressure device ( 40 ′) applies a pressure relatively to and is joined to the surface of the heat dissipating terminal ( 10 c ); a temperature extraction interface module ( 50 ), for extracting corresponding temperature values of the metal heated block ( 20 ) varying with time during cooling; and a calculation module ( 60 ) which obtains a maximum temperature drop of the metal heated block ( 20 ) in a specific interval of the cooling period from the values extracted by the temperature extraction interface module ( 50 ) from which a simulation heat dissipated quantity (Q) is obtained and compared with a database to obtain the approximate maximum thermal conductive capability (Qmax) of the thermal conductive device ( 10 ).