Sanyo Electric Co., Ltd.

Yukifumi Yamaguchi

Kenji Taguchi

Takashi Uchino

Hiroaki Sagara

Tetsuji Ueta

Yasuo Hirose

Masakatsu Fujiwara

Keiji Kishimoto

Kazuhiro Tomoshige

Kazuhisa Matsumoto

Hirofumi Mitsueda

Kouji Moriyama

Kazuhiro Matsuoka

Setsuji Yamaguchi

A stator includes multiple motor coils. The motor coils include multiple U-phase coils, multiple V-phase coils and multiple W-phase coils which are arranged in a circumferential direction of a motor. A neutral bus ring connects the motor coils together. The neutral bus ring is divided into multiple bus ring members. Each bus ring member connects together any one of the U-phase coils, any one of the V-phase coils and any one of the W-phase coils.

Motor with neutral bus ring connecting multiple motor coils

An aspect of the invention provides a motor that comprises: a stator including multiple motor coils; multiple bus rings configured to distribute currents of different phases to the motor coils; and a ring-shaped bus ring holder in which multiple holding grooves configured to hold the respective bus rings are formed, wherein: each of the motor coils includes an insulator around which a wound wire is wound; the insulator includes an outer flange formed at an outer side of the wound wire in a radial direction of the motor and extending in an axial direction of the motor; and the bus ring holder is arranged at an outer side of the outer flange in the radial direction of the motor, and contiguous to the outer flange.

Motor with multiple bus rings

Included are a rotor, and a stator having a yoke section and a teeth section including multiple teeth. The teeth section and the yoke section are made of mutually independent configuration members, and connected to each other. At least one of the teeth section and the yoke section is formed by connecting each neighboring two of its multiple segments arranged one after another in a direction in which the rotor rotates. At least some neighboring teeth out of the multiple teeth are unified.

Motor including a teeth section and a yoke section which are formed of mutually independent configuration members

A self-traveling vehicle without requiring guide wire for travel is provided which allows a change of a traveling course with little expense and labor for reconstruction. Such self-traveling vehicle comprises a storing means for storing a travel road to be traveled, a receiving means for receiving a signal from a satellite and a calculating means for calculating a current positional information based on the signals from the satellite. A controlling circuit for controlling the traveling drive and steering wheel drive provided in the vehicle controls the vehicle in such a manner as to travel on a predetermined set road by verifying the current positional information and the road to be traveled.

Self-traveling vehicle

A motor-assisted bicycle powered by both a motor and man power with a transmission reduction mechanism for transmitting the rotation of a motor as well as for reducing speed. The motor-assisted bicycle also has a driving wheel capable of being driven by a driving force delivered from the transmission reduction mechanism and a clutch for transmitting a one-way driving force. The clutch is provided within the transmission reduction mechanism, thereby making the entire driving portion of the motor-assisted bicycle more compact.

Motor car

A motor and pedal driven bicycle having a motor driving unit for providing driver power to a wheel in which the motor driving unit includes a disc-like casing having a space formed therein and dividable into two portions, a battery powered wheel driving motor, and a speed reducer coupled to the motor to reduce a revolution speed of the motor. The casing is composed of a fixed portion secured to a hub spindle of the wheel and a rotatable portion provided on a hub shell mounted on the hub spindle to be rotatable along with the hub shell. Either the motor or both the motor and the speed reducer are provided on the inside of the fixed portion of the casing.

Growing community of inventors

Himeji, Japan

Yukifumi Yamaguchi