ROTARY ANGLE POSITION DETECTOR

摘要

PROBLEM TO BE SOLVED: To provide a rotary angle position detector, having a structure with improved compatibility precision with an actuator and relatively high maintenability. SOLUTION: In the rotary angle position detector 1, in a casing formed by an inner housing 10 that becomes a rotor nearly in a cylindrical shape, surrounding an axial center and an outer housing 11 that becomes a stator nearly in a cylindrical shape concentric with the axial center provided, while covering the inner housing 10, bearings 12, 13 in a laminated structure; a single-pole resolver 20 and a multipolar resolver 30 in a laminated structure; and a circuit board 40 are arranged side by side and closely toward the outside in the radial direction with respect to the axial center in this order. Furthermore, in the resolvers 20, 30 and the circuit board 40, an opening OP4completely facing them and simultaneously, in plan view, is provided at an upper portion of a space, where the resolvers and the circuit board are arranged. Also, a coating cover 14 is provided so as to cover the opening OP4. COPYRIGHT: (C)2009,JPO&INPIT