Thermoelectric conversion device and application system thereof

Provided are a thermoelectric conversion device and an application system thereof. The thermoelectric conversion device comprises a first heat exchange element and a thermoelectric conversion element. The first heat exchange element comprises a first heat contact portion and a first connecting portion. The first heat contact portion is used to contact with a heat source or a cold source. The first connecting portion is provided with a first insulating surface. The thermoelectric conversion element comprises a first electrode layer, a first thermoelectric material, and a second thermoelectric material. The first electrode layer fits the surface of the first insulating surface. The first thermoelectric material has first electrical property. The second thermoelectric material has second electrical property. The second thermoelectric material conducts by the first electrode layer and the first thermoelectric material. 种热电转换装置及其应用系统，此热电转换装置包括第热交换元件以及热电转换元件。其中，第热交换元件包括第热接触部及第连接部。第热接触部用以和热源或冷源接触。第连接部具有第绝缘表面。热电转换元件包