Aisan Kogyo Kabushiki Kaisha

Takahiro Nakamura

Takehide Nakamura

Masaki Ikeya

Tomoaki Inoue

Shinya Suzuki

Kazuhiro Nakamura

Hiroaki Miyazaki

A liquid level detector may include a float, an arm member, and a magnetic sensor unit. The float may be attached to the arm member. The arm member may be configured to convert a movement of the float in a vertical direction to a rotational movement. The magnetic sensor unit may include a magnetic sensor and covers. The covers may cover the magnetic sensor. The covers may include a first cover, and a second cover. The first cover may be made of a first resin material. The first cover may cover a whole surface of the magnetic sensor. The second cover may be made of a second resin material different from the first resin material. The second cover may cover a whole surface of the first cover.

Liquid level detector and fuel pump module including liquid level detector

A liquid level detector may comprise an arm attached to a float, a rotator fixed to the arm, a magnet fixed to the rotator, a supporter rotatably supporting the rotator. The supporter may comprise a body housing a magnetic sensor and opposing the magnet with a clearance, a supporting portion disposed along a rotation direction of the arm on an outer circumference side of the magnet and projecting from the body toward the rotator, and a flange portion projecting from the supporting portion along an outer circumference direction at a position spaced from the body in a rotational axial direction of the arm. The rotator may comprise an engaging portion slidably disposed relative to the flange portion along the rotation direction of the arm and engaging the flange portion so as to regulate a motion of the arm in the rotational axial direction.

Liquid level detector

A casing of a motor with resolver includes a stator, a motor shaft rotatably supported by a bearing, a motor rotor integrally rotatable with the motor shaft, and a resolver for detecting a rotation angle of the motor rotor. The resolver includes a disc-shaped resolver stator held on the motor casing and having a surface on which a thin-film-shaped coil is formed, and a disc-shaped resolver rotor provided on an end face of the motor rotor and having a surface on which a thin-film-shaped coil is formed. Part of the motor casing holding the outer periphery of the resolver stator is formed as a shield portion cylindrically protruding along the outer periphery of the resolver rotor to the rotor. The motor casing and the shield portion are each made of a non-magnetic conductive material.

Motor structure with planar coil type rotation detector

A motor is provided with a rotation detector including a detection rotor and a detection stator placed to face the detection rotor. The motor further includes a motor case and a motor shaft protruding out of the motor case. The detection rotor is fixed to an end of the motor shaft. The detection rotor includes a plate and a coil provided on the plate. The plate is fixed to the end of the motor shaft. Specifically, the motor shaft includes an opening in the end. The plate has a circular disc shape and a cylindrical portion protruding in the center from the back side. The cylindrical portion is press-fitted in the opening of the motor shaft to fix the plate to the end of the motor shaft.

Growing community of inventors

Anjo, Japan

Takahiro Nakamura