Patent ID: 8297062

Claim:
A heat-dissipating device ( 1 ) for supplying cold airflow, comprising: a casing ( 10 ) provided with a first air inlet ( 111 ), a second air inlet ( 112 ), a cold air outlet ( 121 ), and a hot air outlet ( 122 ) therein; a thermal insulation plate ( 20 ) having a through-hole ( 221 ) and disposed in the casing ( 10 ) for dividing an interior of the casing ( 10 ) into a hot air zone (ZH) and a cold air zone (ZC) separated completely from the hot air zone (ZH), the first air inlet ( 111 ) and the cold air outlet ( 121 ) being in communication with the cold air zone (ZC), and the second air inlet ( 112 ) and the hot air outlet ( 122 ) being in communication with the hot air zone (ZH); a thermoelectric cooling chip ( 30 ) having a cold-end surface ( 31 ) and a hot-end surface ( 32 ) opposite to the cold-end surface ( 31 ), and being disposed in the through-hole ( 221 ) with the hot-end surface ( 32 ) facing the hot air zone (ZH); a heat-dissipating body ( 40 ) disposed in the hot air zone (ZH) to abut against the hot-end surface ( 32 ); a cold-airflow supplying module ( 50 ) disposed in the cold air zone (ZC) to abut against the cold-end surface ( 31 ), and comprising a plurality of super heat pipes ( 52 ), a cooler ( 53 ) contacting the super heat pipes ( 52 ) and a first fan ( 54 ), wherein the first fan ( 54 ) is mounted in the cold air outlet ( 121 ) for guiding external air to enter the cold air zone (ZC) via the first air inlet ( 111 ) and be ejected from the cold air outlet ( 121 ); and a second fan ( 60 ) mounted in the second air inlet ( 112 ) for guiding external air to enter the hot air zone (ZH) via the second air inlet ( 112 ) and be ejected from the hot air outlet ( 122 ).