Kabushiki Kaisha Yaskawa Denki

Other

Kabushiki Kaisha Denki

Kenichi Sadakane

Toru Shikayama

Shusaku Yoshida

Yuji Arinaga

Yasuhiro Matsutani

Ikuma Murokita

Masanobu Harada

Mitsuhiro Matsuzaki

Ryo Inoue

Akio Sakai

Toshikazu Hamao

Yasushi Yoshida

Shogo Makino

Mikio Oshima

Akihito Toyota

Shuji Yamazumi

Keijiro Misu

Kumiko Toma

Fei Zhao

Takehito Soga

Tadayoshi Itabe

Teruaki Imai

Tatsuo Abe

Muhammad Enamul Kabir

Ryuichi Soda

An encoder includes: an optical module that detects angular position information indicating an angular position of a rotating disk within one rotation thereof; a magnetic detecting unit that detects multi-rotation information indicating the number of rotations of the disk; a battery that supplies a power to the magnetic detecting unit when an external power is not supplied to the encoder; and a connector that connects connection terminals of the battery to a substrate to which at least one of the optical module and the magnetic detecting unit is connected, via solders in contact with the connection terminals.

Encoder, servo motor, servo system, and encoder control method

A torque sensor includes: a strain body; and an optical sensor configured to detect a deformation of the strain body. The strain body includes an outer peripheral portion having a ring shape, and an inner peripheral portion of which at least a part is disposed inside the outer peripheral portion in a radial direction. The optical sensor includes a scale fixed to one of the outer peripheral portion and the inner peripheral portion, and disposed between the outer peripheral portion and the inner peripheral portion, and a detector fixed to a remaining one of the outer peripheral portion and the inner peripheral portion, and disposed to face the scale between the outer peripheral portion and the inner peripheral portion.

Torque sensor, robot, and torque calculation method

A motor control device includes a base board, a drive board including switching devices including switching elements for power conversion, disposed along a plane intersecting the base board, and attached to the base board, and a board including a processor configured to execute computation processing for controlling the switching devices, disposed along a plane intersecting the base board, and attached to the base board.

Motor control device and robot system

A linear and curvilinear motor system includes: linear and curvilinear guiding devices movably guiding and respectively supporting right and left of a slider, each having a guide rail configured by linear tracks and a circular arc track and slider blocks; a motor unit having a stator with a stator linear section and a stator circular arc section and a mover with a linear section and provided for the slider and away from the stator with a gap interposed therebetween; and an encoder head and a hole sensor detecting positions of the linear tracks and the circular arc track. When a magnetic pole pitch of the linear section of the stator is a distance &#x3bb;m and a magnetic pole pitch of the circular arc section of the stator is an angle &#x3b3;m, a radius r of the circular arc track at the position detection point is defined as r=&#x3bb;m/&#x3b3;m.

Linear and curvilinear motor system

A canned linear motor armature comprising an armature winding constituted by a coil group including a plurality of formed coils formed in a flat plate shape. A metal-made chassis is provided to surround the armature winding by a frame-like shape. A can hermetically closes two opening portions of the chassis. The coil group is interposed by a wiring board having a wiring portion and a resin-made frame of a bath tub shape. The frame is opened only at a face side of the wiring board. A periphery of the formed coils surrounded by the wiring board and the frame is configured to be injection-molded by a mold or a potting resin.

Canned linear motor armature and canned linear motor

A canned linear motor armature includes an armature winding, a picture-frame-shaped casing, a flat can, and a plurality of refrigerant flow channels. The armature winding includes a coil. The picture-frame-shaped casing has an opening and encloses the armature winding. The flat can has a plate surface to close and seal the opening of the picture-frame-shaped casing. The plurality of refrigerant flow channels are provided within the can to face the coil of the armature winding.

In the canned linear motor armature, both the side surfaces of the armature winding () are fixed by two winding fixing frames () so as to sandwich the armature winding in between them in the longitudinal direction. A refrigerant passage () is provided in a space between the can () and the winding fixing frame (). A seal material () is provided in a gap between a case () and the winding fixing frame () to prevent a refrigerant supplied to the refrigerant passage () from leaking to the armature winding () sandwiched in between the two winding fixing frames () to impregnate the armature winding () with the refrigerant. A waterproof film is adhered onto a surface of the winding fixing frame () where the refrigerant comes into contact.

A canned linear motor armature and a canned linear motor. The canned linear motor armature including a winding accommodating frame formed in the shape of a recess which accommodates an armature winding; a flat plate-shaped connection substrate which connects the armature winding; cans which close airtightly both opening portions of the housing; refrigerant passages formed respectively between the can and the winding accommodating frame and between the can and the connection substrate; and a lead wire which connects the connection substrate and a terminal base, is so constructed that coating with an adhesive resin is provided around a land that is a connection part for connecting the armature winding and the lead wire on the connection substrate so as to include the connection part, and the surroundings of the adhesive resin are filled with a filled resin.

A coreless linear motor and a canned linear motor that can significantly reduce an increase in surface temperature of a linear motor armature are provided. In a magnetic field system of a coreless linear motor, two rows of permanent magnetsare disposed on the opposite sides in a magnetic field yoke, and an armatureis disposed so that armature coilsandincluding a plurality of coil groups centrally wound in the magnetic field system having the two rows of permanent magnets are arranged in two rows. One end of the two rows of the armature coilsandin a direction perpendicular to a direction of a magnetic gap between the two rows of permanent magnets branches into two parts, and the other end is arranged back-to-back. Further, the substratefor connecting the coils is inserted into a gap between the two rows of the branching coilsand. The armature coilsandand the substrateare integrally formed and fixed by mold resin

Growing community of inventors

Fukuoka, Japan

Kenichi Sadakane