Tubular thermoelectric module

A thermoelectric module comprising:

• a multi-layered body provided with a tubular thermoelectric material layer having a first cylindrical surface and a second cylindrical surface on two opposite sides, a first electrode layer adjacent to the first cylindrical surface and a second electrode layer adjacent to the second cylindrical surface, a first electrical insulating layer adjacent to the first electrode layer and a second electrical insulating layer adjacent to the second electrode layer, a first highly heat conductive material layer adjacent to the first electrical insulating layer, a second highly heat conductive material layer adjacent to the second electrical insulating layer, the adjacent layers being in close contact with each other, and an electrical insulating outer layer covering a face of the body where the thermoelectric material layer, the electrode layers, the electrical insulating layers, and the highly heat conductive material layers are exposed, wherein the thermoelectric material layer comprises only one of a p-type semiconductor or an n-type semiconductor.

A thermoelectric module comprising:

• a multi-layered body provided with a tubular thermoelectric material layer having two cylindrical surfaces provided on opposite sides of the body, a pair of electrical insulating layers provided on opposite sides of the thermoelectric material layer and extending between the two surfaces, and a pair of highly heat conductive material layers provided adjacent to the electrical insulating layers, the adjacent thermoelectric material layer, electrical insulating layers and highly heat conductive material layers being in close contact with each other, an electrode connected to each of the two cylindrical surfaces, and an electrical insulating outer layer covering each of the surfaces excluding a region where the electrode is provided, wherein the thermoelectric material layer comprises only one of a p-type semiconductor or an n-type semiconductor.

A thermoelectric module comprising:

• a multi-layered body provided with a tubular thermoelectric material layer having two cylindrical surfaces on two opposite sides of the body, the thermoelectric material layer comprising only one of a p-type semiconductor or an n-type semiconductor, and
• a highly heat conductive material layer adjacent each of the cylindrical surfaces, the thermoelectric material layer and the highly heat conductive material layers being in close contact with each other, and an electrical insulating outer layer covering a face of the multi-layered body.