A semiconductor refrigeration piece temperature control device for laser instrument

The utility model provides a semiconductor refrigeration piece temperature control device for laser instrument, the device is including a semiconductor refrigeration piece, the 2nd semiconductor refrigeration piece, radiator, thermocouple, control system and pumping module, control system passes through the wire and connects a semiconductor refrigeration piece, the 2nd semiconductor refrigerationpiece and thermocouple, the thermocouple laminating is in pumping module bottom surface, the one side of a semiconductor refrigeration piece and the 2nd semiconductor refrigeration piece is connectedrespectively at the both ends of radiator bottom surface, the another side of a semiconductor refrigeration piece and the 2nd semiconductor refrigeration piece is connected respectively the both endsof pumping module bottom surface. The utility model discloses temperature control device has reduced the number of times that the positive negative pole of semiconductor refrigeration piece switches over, increases time interva