A heat conduction unit comprising: a thermoelectric element having a heating surface and a heat absorption surface that opposes the heating surface; an evaporation device having a first side that contacts the heating surface of the thermoelectric element and a second side coupled to a refrigerant pipe of an evaporator to transmit heat from the heating surface of the thermoelectric element; wherein an amount of heat-exchange between a refrigerant of the evaporation device and a central portion of the heating surface having a high temperature is greater than an amount of heat-exchange between the refrigerant and a peripheral portion of the heating surface that surrounds the central portion of the heating surface, wherein the evaporation device includes: a heat exchange plate (1461, 1462) adapted to contact the heating surface of the thermoelectric element to exchange heat with the heating surface; and a refrigerant flow channel within the heat exchange plate (1461, 1462), the refrigerant flow channel is adapted to allow the refrigerant from the evaporator to flow in the refrigerant flow channel to exchange heat with the heat exchange plate (1461, 1462), wherein the heat exchange plate (1461, 1462) has a refrigerant intake port for intaking the refrigerant from the evaporator to the refrigerant flow channel and a refrigerant discharge port for discharging the refrigerant from the refrigerant flow channel, characterised in that the refrigerant intake port is formed at a central portion of the heat exchange plate (1461, 1462) to exchange heat with a central portion of the heating surface of which the temperature is higher than that of the peripheral portion of the heating surface. a thermoelectric element having a heating surface and a heat absorption surface that opposes the heating surface; an evaporation device having a first side that contacts the heating surface of the thermoelectric element and a second side coupled to a refrigerant pipe of an evaporator to transmit heat from the heating surface of the thermoelectric element; wherein an amount of heat-exchange between a refrigerant of the evaporation device and a central portion of the heating surface having a high temperature is greater than an amount of heat-exchange between the refrigerant and a peripheral portion of the heating surface that surrounds the central portion of the heating surface, wherein the evaporation device includes: a heat exchange plate (1461, 1462) adapted to contact the heating surface of the thermoelectric element to exchange heat with the heating surface; and a refrigerant flow channel within the heat exchange plate (1461, 1462), the refrigerant flow channel is adapted to allow the refrigerant from the evaporator to flow in the refrigerant flow channel to exchange heat with the heat exchange plate (1461, 1462), a heat exchange plate (1461, 1462) adapted to contact the heating surface of the thermoelectric element to exchange heat with the heating surface; and a refrigerant flow channel within the heat exchange plate (1461, 1462), the refrigerant flow channel is adapted to allow the refrigerant from the evaporator to flow in the refrigerant flow channel to exchange heat with the heat exchange plate (1461, 1462), wherein the heat exchange plate (1461, 1462) has a refrigerant intake port for intaking the refrigerant from the evaporator to the refrigerant flow channel and a refrigerant discharge port for discharging the refrigerant from the refrigerant flow channel, characterised in that the refrigerant intake port is formed at a central portion of the heat exchange plate (1461, 1462) to exchange heat with a central portion of the heating surface of which the temperature is higher than that of the peripheral portion of the heating surface.