Patent ID: 8341967

Claim:
A heat-dissipating device for supplying cold airflow, including: a casing ( 10 ) provided with a hot air outlet ( 121 ), a cold air outlet ( 110 ), a first air inlet ( 122 ), and a second air inlet ( 123 ); a thermal insulation plate ( 20 ) provided in the casing ( 10 ) for dividing an interior of the casing ( 10 ) into a first accommodating space ( 101 ) and a second accommodating space ( 102 ), the hot air outlet ( 121 ) and the first air inlet ( 122 ) being in communication with the first accommodating space ( 101 ), the cold air outlet ( 110 ) and the second air inlet ( 123 ) being in communication with the second accommodating space ( 102 ), and the thermal insulation plate ( 20 ) being provided with a through-hole ( 200 ); a thermoelectric cooling chip ( 30 ) disposed in the through-hole ( 200 ), the thermoelectric cooling chip ( 30 ) having a hot-end surface ( 31 ) facing the first accommodating space ( 101 ) and a cold-end surface ( 32 ) facing the second accommodating space ( 102 ); a heat-dissipating module ( 40 ) received in the first accommodating space ( 101 ) and comprising a thermal-conducting body ( 41 ) adhered to the hot-end surface ( 31 ) of the thermoelectric cooling chip ( 30 ) and a heat-dissipating fan ( 42 ) positioned corresponding to the first air inlet ( 122 ); and a cold-airflow supplying module ( 50 ) received in the second accommodating space ( 102 ) to abut the cold-end surface ( 32 ) of the thermoelectric cooling chip ( 30 ), the cold-airflow supplying module ( 50 ) comprising a super heat pipe ( 52 ), a fins assembly ( 55 ) connected to the super heat pipe ( 52 ), and a fan ( 54 ) provided in the cold air outlet ( 110 ).