SOLENOID VALVE, FLUID MACHINE, HYDRAULIC MACHINE AND RENEWABLE ENERGY TYPE POWER GENERATION DEVICE, AND MANUFACTURING METHOD OF SOLENOID VALVE

摘要

PROBLEM TO BE SOLVED: To provide a solenoid valve capable of improving a heat radiation property of the heat generating in a solenoid coil.SOLUTION: A solenoid valve includes: a solenoid coil 10; a valve body 20 configured so as to be driven by an electromagnetic force of the solenoid coil; a coil bobbin 30 having a pair of flange parts 34 provided so as to extend radially outward from a cylindrical part 32 and both ends of the cylindrical part, the coil bobbin 30 holding the solenoid coil in a space formed between the pair of flange parts on the outer peripheral side of the cylindrical part; a valve casing 40 having a shaft part 42 which is inserted in the cylindrical part of the coil bobbin, the valve casing 40 accommodating the coil bobbin provided around the shaft part, the solenoid coil and the valve body; and a filler 2 which, in the case where there is a gap between an inner peripheral surface of the cylindrical part of the coil bobbin and an outer peripheral surface of the shaft part of the valve casing, is provided in the gap, and in which heat conductivity is larger than that of air.