Coil cooling structure

The main purpose of the present invention is to provide a coil cooling structure which is capable of inhibiting breakage of a cooling plate caused by thermal expansion when a current is passing through a coil, while ensuring heat-transfer properties from an end surface of the coil to the cooling plate. This coil cooling structure is provided with: a coil (30) including a plurality of strip conductors wound around a prescribed axis; an alumina layer (39) which is formed on an end surface of the coil (30) in the direction of the prescribed axis by way of spray coating, and which has a flattened surface; a cooling plate (41) which has alumina as a main component, is formed into a plate shape, and has flow paths (41a) for a cooling medium formed therein; and an adhesive agent (40) which bonds the alumina layer (39) and the cooling plate (41) together, and elastically deforms in accordance with the difference between the thermal expansion amounts of the alumina layer (39) and the cooling plate (41).