Showa Corporation

Akira Fujisaki

Yohei Hama

Yoshitaka Kubo

Harunori Imagawa

Akihiro Kogure

In a feeder line drawing structure of a motor for a ship propeller, a guide portion detachably retaining a feeder line drawn out from a grommet in a drawing direction is provided in a lower end side of a housing in accordance with an integral molding, a bracket connected to a lower end of a housing formed as a close-top tube shape.

Feeder line drawing structure of motor for ship propeller

In a motor-driven power steering apparatus, the main coil winding and auxiliary coil winding are wound around the same slot of a stator core in a parallel manner, a motor drive means has a main driver feeding at least to the main coil windings, and an auxiliary driver feeding only to the auxiliary coil windings, the main driver being actuated so as to be capable of assisting the steering during normal conditions of a control system of an electric motor, and the auxiliary driver is actuated so as to execute an auxiliary assist corresponding to a motor friction torque under abnormal conditions of the control system of the electric motor.

Motor-driven power steering apparatus

In a motor-driven power steering apparatus, a plurality of rotational position detecting sensors are provided in an electric motor, and during an abnormality in any one rotational sensor, the electric motor can be driven by using a detected result of any other one rotational position detecting sensor.

In an electric motor in which a magnet holder is provided in an inner periphery of a yoke, and a terminal insertion hole is provided in a feed connector provided in a brush holder. A terminal connected to a brush is inserted to the terminal insertion hole, and the yoke and the brush holder are connected. An engagement portion is provided in the terminal, a convex portion is provided in an end surface of the magnet holder, and the convex portion of the magnet holder is allowed to be engaged with the engagement portion of the terminal under a state in which the yoke and the brush holder are connected.

Electric motor

In an electric motor having a brush holding portion for holding a brush and a pigtail holding means for holding a pigtail connected to the brush, on a holder surface of a brush holder, the pigtail holding means holds the pigtail in both a lateral direction along the holder surface and a longitudinal direction crossing to the holder surface.

An electric motor is disclosed in which a rising wall is formed in a rear side of a terminal insertion hole in a brush holder, a terminal elastically deforms with respect to an upper surface of the rising wall so as to get over the rising wall, thereby being inserted into the terminal insertion hole, and a bent base end portion of the terminal is abutted against the rising wall so as to be prevented from coming off, an elastic deforming performance regulating portion is provided in the terminal.

An electric motor provided with a terminal insertion hole to which a terminal connected to a brush is inserted, in a feed connector, a fitting hole is formed in a base end portion of the terminal, a projection is formed in a side of a brush holder, and the fitting hole of the terminal inserted into the terminal insertion hole can be fitted to the projection of the brush holder.

In an electric power steering apparatus in which a brush holder of an electric motor is clamped between a yoke of the electric motor and a housing, and a communication passage allowing an inner portion of the yoke of the electric motor and an inner portion of the housing to be ventilated is provided in a partition wall of the brush holder, shielding opposing each other via a narrow passage are provided in an opening facing the inner portion of the yoke in the communication passage provided in the brush holder.

Electric power steering apparatus

In an electric motor, a brush holder is provided with a flange protruding to an outer side in a diametrical direction from an inner diameter position of a yoke, and at least a part of an electric conductor is buried in the flange.

Growing community of inventors

Tochigi, Japan

Akira Fujisaki