Metal ceramics heating device

A metal ceramics heating device, comprising a first ceramic body and a second ceramic body;

• wherein an intermediate ceramic layer is provided between the first ceramic body and the second ceramic body;
• and
• a first resistance wire is provided on a side of the first ceramic body close to the intermediate ceramic layer, the first resistance wire is formed by tungsten paste printing and sintering;
• and
• a second resistance wire is provided on a side of the second ceramic body close to the intermediate ceramic layer, the second resistance wire is formed by tungsten paste printing and sintering;
• wherein the first resistance wire and second resistance wire comprise a first heating circuit, a second heating circuit;
• two ends of the first heating circuit are connected to a first electrode and a second electrode respectively;
• and two ends of the second heating circuit are connected to a first electrode and a third electrode respectively;
• and
• the first heating circuit and the second heating circuit are connected to an external control circuit through the first electrode to achieve commonor separate control.