초록 ▼

A rotation sensor device capable of detecting rotation speed of a rotatable magnetic member with high accuracy and reliability even in a low rotation speed range and a method of manufacturing the same through simplified process. As a means for detecting a rotation frequency of a toothed-wheel-like r

A rotation sensor device capable of detecting rotation speed of a rotatable magnetic member with high accuracy and reliability even in a low rotation speed range and a method of manufacturing the same through simplified process. As a means for detecting a rotation frequency of a toothed-wheel-like rotatable magnetic member (100), a permanent magnet (25) and a magneto-electric conversion element (22) are used. Conductors (24) having these elements (22; 25) mounted at a tip end portion is embedded integrally in a base (23) of a resin material through an insert molding process such that the elements (22; 25) and those portions of the conductors which constitute mounting electrodes are exposed at least partially on the surface of the base (23). Electronic parts (26) are packaged on the mounting electrode portions (24a).

대표청구항 ▼

A rotation sensor device for detecting a rotational state of a rotatable magnetic member, comprising: a magneto-electric conversion element for detecting change of magnetic flux which takes place as said rotatable magnetic member rotates; a base made of a resin material for holding at least said mag

A rotation sensor device for detecting a rotational state of a rotatable magnetic member, comprising: a magneto-electric conversion element for detecting change of magnetic flux which takes place as said rotatable magnetic member rotates; a base made of a resin material for holding at least said magneto-electric conversion element; a base made of a resin material for holding at least said magneto-electric conversion element; insert conductors embedded integrally in said base using an insert molding process, said insert conductors being partially exposed on a surface of said base, said magneto-electric conversion element being electrically connected to said insert conductors; exposed mounting electrodes each formed by bending corresponding ones of said exposed portions of said insert conductors in a doubled-up structure, such that a respective mounting surface of the doubled-up structure of each of said exposed mounting electrodes lies along the surface of said base; at least one electronic part being mounted on at least one of said exposed mounting electrodes and being electrically connected to said magneto-electric conversion element; and a connector portion having terminal electrodes formed by end portions of said insert conductors.