Rotation angle detector

Abstract

Upper and lower insulators are mounted so as to electrically insulate a sensor core and a sensor coil, a connector is formed integrally with the upper insulator so as to be positioned on an outer circumferential side of a yoke of the sensor core, and lead wire portions of conductor wires constituting an excitation winding and an output winding of the sensor coil are joined to terminal pins on an upper surface of the upper insulator so as to have a predetermined amount of slack.

What is claimed is:  
     
         1 . A rotation angle detector comprising: 
 a sensor core in which a plurality of teeth are formed on an inner circumferential portion of an annular yoke;    a sensor coil composed of an excitation winding and an output winding each constructed by installing a conductor wire on said teeth;    an insulator mounted to said sensor core so as to electrically insulate said sensor core and said sensor coil;    a connector formed integrally with said insulator so as to be positioned on an outer circumferential side of said yoke; and    a sensor rotor rotatably disposed inside said yoke,    wherein lead wire portions of said conductor wires constituting said excitation winding and said output winding are each joined to a terminal pin of said connector on a first surface side of said insulator so as to have a predetermined amount of slack.    
     
     
         2 . The rotation angle detector according to  claim 1 , wherein: 
 said lead wire portions of said conductor wires are disposed so as not to cross each other.    
     
     
         3 . The rotation angle detector according to  claim 1 , wherein: 
 said lead wire portions of said conductor wires are covered by a lead wire protective resin layer.    
     
     
         4 . The rotation angle detector according to  claim 1 , wherein: 
 a crossover wire guide portion for guiding a crossover wire portion of said conductor wires spanning between said teeth is formed on a second surface side of said insulator.