Honda Motor Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Takeo Fukuda

Hirofumi Atarashi

Hiroyuki Kikuchi

Mitsuyoshi Takao

Masaru Ozawa

Takeo Arai

Toshinori Tsukamoto

Yasuhiro Endo

Akira Kato

Tomoyuki Okada

Tatsuro Horie

Minoru Nakajima

Kazuaki Igarashi

Shuichi Kazuno

Shigemitsu Akutsu

Shigeru Tajima

Jun Takeuchi

Shoei Abe

Takashi Kuribayashi

Kenji Fukuda

Keiichi Yamamoto

Hisashi Nagaoka

Kaoru Noji

Noritaka Yamaguchi

Makoto Kawakami

Mitsuo Nakazumi

Keisuke Urushihara

Hiroyuki Baba

Takahiro Sato

A hydrogen station includes a state management apparatus that is connected to each of a plurality of systems and manages the states of the plurality of systems, and a safety control apparatus that is formed separately from the main equipment and is connected to the state management apparatus. The state management apparatus performs first watchdog control to check operations of the plurality of systems and the safety control apparatus performs second watchdog control to check an operation of the state management apparatus. The state management apparatus or the safety control apparatus cuts off the power supply from the safety control apparatus to the main equipment if an abnormality is recognized by the second watchdog control, even if the first watchdog control indicates correct operation.

Hydrogen station

An axial gap type motor according to the present invention includes: a rotor; and a pair of stators which are arranged to face each other and hold the rotor from both sides thereof along a rotation axis. The rotor includes: electromagnets which are provided on the rotor as main magnets, and arranged along a circumferential direction so that directions of magnetic fluxes thereof are parallel to the rotation axis; and sub permanent magnets which are provided on the rotor, arranged in the vicinities of circumferential end portions of the main magnets, and are magnetized orthogonal to the rotation axis and a radial direction.

Axial gap type motor

In the field of stators including divided tooth-shaped iron cores and core back iron cores, a stator is provided in which the tooth-shaped iron cores and the core back iron cores can be easily connected to each other, and the tooth-shaped iron cores and the core back iron cores can be prevented from coming off in the radial direction. In the stator of the present invention, a yoke () is formed such that the circumferential width thereof is greater at a radial-outer region than at a radial-inner region, i.e., such that the distance (a) between yoke side faces (A,A) gradually increases from a radial-inner region to a radial-outer region, and the distance (b) between two yoke side faces (A,A) opposing each other and facing a space between the tooth-shaped iron cores () that are disposed along a predetermined circumference with a predetermined interval is set to be a predetermined value over a range from a radial-inner region to a radial-outer region, or alternatively, is set so as to slightly decrease from a radial-inner region to a radial-outer region. A stator () is formed by inserting each of the core back iron cores () into a space between the tooth-shaped iron cores () adjacent to each other. The present invention also provides a stator in which a packing factor can be increased and the magnetic flux can be made smooth, and a manufacturing method therefor.

Stator having teeth with a projecting portion extending outwardly from a winding portion and a yoke portion

An electric motor driven by three-phase electric power includes armature windings that are connected in series, via an armature-winding connecting line, for each of a plurality of groups of three or N circumferentially-adjoining poles to thereby provide three-phase armature windings, wherein N is an arbitrary number equal to a multiple of three. The armature-winding connecting line connects in series the adjoining armature windings in such a way as to not substantially straddle a relatively great part of the outer periphery of any of the adjoining armature windings.

Electric motor and electric power steering apparatus equipped with the motor

An insulating bobbin mounted on a tooth extending from an annular yoke of a stator with a rectangular wire being around the insulating bobbin has a tooth insulating portion for insulating the tooth of the stator and the rectangular wire and an extending portion extending from an end portion of the tooth insulating portion along an inner surface of the yoke, wherein a guide groove for guiding the rectangular wire diagonally relative to a circumferential direction of the tooth insulating portion from an outside of the extending portion is provided in a side of the extending portion on one of axial sides of the stator.

Stator and insulating bobbin and a manufacturing method of the stator

An electric motor for a hybrid vehicle includes a rotor disposed and coupled between an internal combustion engine and a transmission, the rotor being coupled, at one end thereof in a direction of a rotation axis, to a crank shaft of the internal combustion engine and, at the other end, to the transmission via a drive plate; a through hole provided to extend in the direction of the rotation axis through the rotor; a fastening hole provided respectively in an end face of the crank shaft and in the drive plate to face, and be in communication with, the through hole; and a fastening member mounted in the through hole and in each of the fastening holes such that the rotor is fixed between the crank shaft and the drive plate. A desired performance is secured easily while preventing an excess increase in the cost for producing rotors.

Electric motor for hybrid vehicles

The stator includes core back iron cores disposed on outer circumferential sides between a plurality of teeth iron cores disposed at regular intervals of a predetermined distance in a predetermined circumferential direction. A stator winding is disposed on inner circumferential sides between the plurality of teeth iron cores. The stator winding is constituted by a plurality of wire bundles each of which is a bundle of a predetermined number of electric wires and which are connected in parallel with one another. The wire bundles are set so that the number of electric wires constituting a wire bundle located on the inner circumferential side between adjacent teeth iron cores is smaller than the number of electric wires constituting a wire bundle located on the outer circumferential side. Hence, the ratio (L/A) of the circumferential length L of each wire bundle to the sectional area A thereof is set at a value in a predetermined allowable range.

Stator and method for producing the stator

A stator winding which copes with high output and miniaturization turns formed by winding a wire sheaf of a plurality of fine wires bundled together, in an approximately rhombic shape, wherein the turns are arranged so as to be sequentially shifted in the direction of one diagonal of the rhombic shape, to thereby form an approximately rhombic shape coil segment comprising a continuous length of the wire sheaf. A plurality of coil segments are then sequentially shifted and overlapped on one diagonal to form a band shaped body, and a hollow cylindrical body is then formed by rolling the band shaped body into a circular shape. The winding is characterized in that with each turn, opposite end portions located in the direction of an other diagonal orthogonal to the direction of the one diagonal have U-shape bent back portions.

Stator winding and manufacturing method therefor

A stator and a stator manufacturing method is provided in which a space factor can be improved, while reducing the number of components and simplifying the manufacturing process. A stator comprises a plurality of teeth cores positioned at predetermined intervals on a predetermined circumference, a core back core provided on a circumferential outside between adjacent teeth cores, and stator windings which are wound around the teeth cores. An approximately U-shaped insulating sheet is provided between adjacent teeth cores with the ends of the sheet facing towards the circumferential outside, the insulating sheet is provided between the teeth cores and the stator windings , and the ends of the insulating sheet are bent inward and occluded by an inner end surface of the core back core which is inserted from the circumferential outside.

Stator and stator manufacturing method

A stator of a rotating electrical machine has improved heat dissipation of a stator and end portions of a stator winding thereof which are protected from damage due to stress concentration, by inserting a silicone rubber sheet between a stator core having no slots and the stator winding which is accommodated thereinside. The silicone rubber sheet comprises a rubber type material having flexibility so as to be deformable under pressure, which is reinforced by a glass cloth or a polyester mesh cloth. Moreover, this is preferably an insulating and heat dissipating sheet which contains a filler having good thermal conductivity. More preferably, a silicone rubber sheet which contains boron nitride is used. Furthermore, a protective sheet of a resin material is further inserted between the stator core and end portions of the stator winding over the silicone rubber sheet.

Rotating electrical machine stator

A manufacturing method of a slotless stator, involves assembling jointly define two divided cores which a stator core into a cylindrical shape, so as to contain therebetween a cylindrically shaped stator winding, wherein the stator winding an outer diameter larger than an inner diameter of the stator core in the uncompressed condition. By so doing, the stator winding is assembled inside the stator core in a radially inward compressed condition. At this time, since the stator winding functions as a spring pressing the inside of the stator core so as to expand in the normal direction (the radial outward direction), winding is mechanically secured by the resilient spring force at that time to the inner periphery of the stator core. Hence there is no longer the need for a special fixation mechanism or adhesive when assembling the stator core winding and stator core together.

Manufacturing method for slotless stator, and rotating electrical machine

A method of securing a stator winding such that it has improved heat dissipation performance includes steps of inserting a stator winding into a stator core soaking these components in a varnish tank while being held together as one, and after the varnish has soaked into the stator winding , withdrawing the winding and core from the varnish tank. Then a mandrel comprising an outer peripheral pressing portion made by wrapping a fluororubber around an outer periphery of a mandrel body made of a fluoroplastic, is inserted into the stator winding. After this, the varnish is heat hardened with the stator core, the stator winding, and the mandrel all held together as one. In so doing, the outer peripheral pressing portion is deformed with irregularities replicating the inner periphery of the stator winding . Hence on the inner peripheral side of the stator winding, the varnish resin hardens with the irregularities retained. As a result, the effective inner peripheral surface area of the stator winding with the hardered varnish is increased, and heat dissipation is thus improved.

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Wako, Japan

Takeo Fukuda