1results about How to "Large temperature control range" patented technology

The utility model relates to a temperature control system for printing nozzle, including semiconductor refrigeration piece, with the semiconductor refrigeration piece one end of the heat dissipation spare, with the semiconductor refrigeration piece other end of the printing head temperature control block, with the semiconductor refrigeration piece electricity connection's temperature control unit and the cooling liquid circulating assembly of external and with the heat dissipation spare connection, the cooling liquid circulating assembly includes the cooling liquid tank, pump body and radiator that connect gradually, and the cooling liquid in the cooling liquid tank is transported to the radiator heat dissipation after the pump body and supplies to the cooling liquid flow channel, then again backflow to the cooling liquid tank. The utility model discloses a cooling liquid circulation system is formed through the heat dissipation spare and external cooling liquid circulating assembly, and the cooling effect of semiconductor refrigeration piece is improved to the heat dissipation spare cooling, reaches the purpose of faster cooling and lower temperature, makes printing nozzle can fast switching temperature and temperature control range is wider, to satisfy the demand of complex biological material printing and organ chip manufacturing, simple structure.