A power generation device according to an embodiment of the present invention comprises: a cooling part; a thermoelectric module disposed on a first region of one surface of the cooling part; a connector part disposed on a second region of the one surface of the cooling part and connected to the thermoelectric module; a heat insulating member disposed on the connector part and disposed so as to expose a side surface of the connector part; a shield member disposed so as to cover the heat insulating member and the connector part; and a first insulating layer disposed between the connector part and the shield member.