▎ 摘　　要

NOVELTY - Ice maker comprises forming an ice-making space for generating ice, at least part of which is injection-molded with a conductive composite material including conductive material and non-conductive resin, and a tray (10) in which the conductive material forms an electrical network when power is applied and is heated by electrical resistance to separate ice; and a power terminal (20) inserted at both ends of the tray to supply power to the tray. The tray includes a heating part made of conductive composite material and inserted with power terminal, and an insulating part made of non-conductive resin. The conductive material includes carbon members dispersed in the non-conductive resin and form the electrical network, and metal powders that increase thermal conductivity of the conductive composite material and transfer electrical resistance heat generated by the carbon members to the surface of the tray and is interposed between the carbon members to increase the electrical network. USE - The ice maker is useful for artificially making large amount of ice at home and in business. ADVANTAGE - The ice maker can be easily separated ice, does not need to attach or install separate heater to the tray, and is easy to manufacture and can reduce manufacturing costs. DETAILED DESCRIPTION - Ice maker comprises forming an ice-making space for generating ice, at least part of which is injection-molded with a conductive composite material including conductive material and non-conductive resin, and a tray (10) in which the conductive material forms an electrical network when power is applied and is heated by electrical resistance to separate ice; and a power terminal (20) inserted at both ends of the tray to supply power to the tray. The tray includes a heating part made of the conductive composite material and inserted with the power terminal, and an insulating part made of the non-conductive resin. The conductive material includes carbon members that are dispersed in the non-conductive resin and form the electrical network, and metal powders that increase the thermal conductivity of the conductive composite material and transfer the electrical resistance heat generated by the carbon members to the surface of the tray and is interposed between the carbon members to increase the electrical network by the carbon members. The conductive composite material comprises 60-72 wt.% non-conductive resin. In the conductive composite material: the length of the carbon members is 1-100 mu m, and the content of the carbon members is 10-17 wt.% to form the electrical network; and the metal powders have diameter of 10-100 nm, the content of the metal powder is greater than or equal to 12 wt.% to increase the electrical network between the carbon members and increase the thermal conductivity of the conductive composite material, and less than or equal to 22 wt.% to reduce the specific gravity of the conductive composite material. The conductive composite material has specific gravity of 0.8-1.3, specific resistance of 2-10 ~omm2/m, and thermal conductivity of 156-235 kcal/mh degrees C according to ASTM D792. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the ice maker using conductive composite material. Tray (10) Power terminal (20) First terminal (21) Second terminal (22)