Toyota Jidosha Kabushiki Kaisha

Matsuo Industries, Inc.

Yuki Yamakawa

Mutsumi Matsuura

Toru Takahashi

Kentaro Haruno

Hironao Hayashi

Yuji Sekitomi

Yoshikazu Suzuki

Tomokiyo Suzuki

Kensuke Nakanishi

Toshihiro Kimura

Iori Kobayashi

Osamu Kuriyagawa

Masanori Sumida

Eiji Yamada

Takashi Sano

Yasuhiro Endo

Hiroshi Aihara

Hiroaki Urano

Hiroshi Abe

Kazuhiro Goto

Masao Okumura

Haruki Kusamaki

Masayuki Nishiguchi

Hiroki Keino

Akira Ishimaru

Shigeru Hayashida

Noriharu Ogiso

A rotary electric machine includes a stator core, a coil, and a molded portion. The stator core includes an annular yoke and a plurality of teeth. The teeth protrude radially inward from the annular yoke. The coils are wound around the teeth respectively. The coil includes a coil end that protrudes toward an axially outer side from an axially end surface of the stator core. The molded portion is a resin member that covers the coil end. The molded portion includes a first member. The first member includes a communication portion that communicates inside of the molded portion with outside of the molded portion.

Rotary electric machine stator having a resin molded portion

A structure which enables highly accurate detection of the temperature of the stator windings of a dynamo-electric machine. A terminal base () integrated with a stator by resin molding is provided with: positioning sections () for three-phase stator windings (); and a positioning section () for a thermistor (). The positioning section () is disposed between the positioning sections (). The thermistor () is insert molded on the terminal base ().

Dynamo-electric machine

A variable reluctance resolver includes a rotor that rotates about a rotational axis, a plurality of detection coils that detect rotation of the rotor, and a magnetic member that magnetically connects adjacent ones of the detection coils to each other. The magnetic member includes a pair of body portions around which the detection coils are wound, and a connection portion that connects the pair of body portions to each other. Both the body portions and the connection portion have a thin flat shape. The body portions are flat so that a direction of extension of the flat shape is along a rotational axis direction, and the magnetic member has a U shape as viewed from the rotational axis direction.

Variable reluctance resolver and method of producing the variable reluctance resolver

A magnetic resolver includes a stator core made of magnetic material, coils, and a rotor. The stator core has a base plate and protrusions formed integrally with the base plate so as to protrude from a surface of the base plate in the thickness direction. The coils are provided around the respective protrusions. The rotor is disposed so as to face the surface of the base plate with the coils interposed therebetween. The overlapping area between the rotor and each of the protrusions changes with a change in a rotation angle of the rotor relative to the stator core. The stator core has through-holes that pass through the base plate and the respective protrusions in the thickness direction.

Magnetic resolver

A resolver is provided with a rotor plate fitted to a key groove in a rotating shaft and connected to the rotating shaft, and also with a resolver stator for detecting the rotational position of the rotor plate. The resolver stator is provided with a resolver cover for protecting a coil board of a stator core and fixed to the stator core. The coil board is provided with holes fitted to stator pins which are projections of the stator core, coil patterns each formed so as to center on each of the holes, and lead wires connected to the coil patterns formed on the coil board. The outer peripheral portion of the stator core is provided with long mounting holes for fixing the resolver to the housing of a rotating machine, such as an electric motor or a generator, and also with engaging holes engaging with claws of the resolver cover.

Resolver for detecting a rotational position of a resolver rotor connected to a rotator shaft of a rotating machine

In a method for producing a molded article having a resin part, the resin part is injection-molded to an opening of a main body part and the molded article has an excellent air-tightness between the resin part and the main body part. A foam sealant is attached to a peripheral portion around the opening of the main body part. Attached to the main body part is a retainer made of the same kind of resin as injected resin and adapted to keep the foam sealant compressed in its thickness direction. The main body part is placed within a mold so that the retainer is exposed inside a cavity of the mold. A molten resin is injected into the cavity of the mold. The injected resin and the retainer are integrated into the resin part.

Molded article production method and molded article

A case with a connector integrally formed with a resin connector, and can be manufactured with a small number of processes is provided. The connector case includes a housing, a resin connector, and a ground terminal extending along an outer periphery of the connector. A terminal-side fixing portion extending backward from the ground terminal is crimped to or pressed over a housing-side fixing portion. When molds are closed after the housing and the ground terminal are placed in the molds for injection molding of the resin connector, a pressing portion formed on the mold presses the terminal-side fixing portion against the housing-side fixing portion to crimp or press the terminal-side fixing portion to or over the housing-side fixing portion. As a result, in the process for the injection molding of the connector, the ground terminal is fixed to the housing at the same time. The connector case with the ground terminal fixed to the housing can be manufactured in a small number of processes.

Case with connector and manufacturing method thereof

Growing community of inventors

Miyoshi, Japan

Yuki Yamakawa