Abstract: An electric compressor includes a housing; a rotary shaft; an impeller connected to at least a first end portion of the rotary shaft in an axial direction of the rotary shaft, of the first end portion and a second end portion of the rotary shaft in the axial direction; and a pair of air bearings supporting the rotary shaft such that the rotary shaft is rotatable relative to the housing. A load on the first end portion is larger than a load on the second end portion. The pair of air bearings includes a first air bearing, and a second air bearing supporting the rotary shaft at a position closer to the second end portion of the rotary shaft than the first air bearing is. A load carrying capacity of the first air bearing is larger than a load carrying capacity of the second bearing.

Abstract: A thermoelectric device includes a thermoelectric element module arranged such that the vertically upper side is the cooling side and the vertically lower side is the heating side. On the cooling side of the thermoelectric element module, a DC-DC converter, a cooler, and a heat-transfer grease layer are arranged in this order from the vertically upper side.