Toyota Jidosha Kabushiki Kaisha

Yazaki Corporation

Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Other

Nitto-denko Corporation

Matsuo Industries, Inc.

Nitto Shinko Corporation

Hiroshi Aihara

Hayato Iizuka

Yasuhiro Yamaguchi

Kazuma Kayo

Yoshitaka Ohkubo

Takeshi Innan

Hajime Kato

Sho Miyazaki

Keiji Takizawa

Kei Sasaki

Yasuhiro Endo

Takaaki Miyajima

Satoshi Nakai

Hiroyuki Tsukashima

Yuji Sekitomi

Masao Okumura

Yasuhiro Otsuta

Yuki Yamakawa

Hiroaki Imai

Jun Fujiki

Toshihiro Kimura

Susumu Kiyohara

Naoki Fujimoto

Noriharu Ogiso

Jun c/o Nitto Shinko Corporation Fujiki

A noise filter () is equipped with a plurality of conductors () having respective winding portions () and a ring-shaped core () which is inserted through the winding portions of the a plurality of conductors and made of a magnetic material. The ring-shaped core is composed of a pair of divisional cores () and () which are combined together by joining each pair of joining surfaces () and (), located at each end, of the pair of divisional cores and. The one divisional core is straight and is inserted through the winding portions of the a plurality of conductors. The other divisional core has partition walls () each of which is located between adjacent ones of the a plurality of conductors, projects toward the one divisional core, and serves to form a magnetic path between the partition wall and the one divisional core.

Noise filter and noise reduction unit

A surge voltage reduction member includes a tubular magnetic body having a through-hole and at least one coil wire. The coil wire is inserted through the through-hole and has a winding portion which is winded around a portion of the magnetic body. The coil wire is formed by connecting a bent coil element wire and a straight coil element wire. Where the coil wire has two or more bent coil element wires, the winding portion is formed by connecting the through-hole passing portion of one of adjacent bent coil element wires to the outside passing portion of the other of the adjacent bent coil element wires and connecting the outside passing portion of the one of the adjacent bent coil element wires to the straight coil element wire.

Surge voltage reduction member

A surge voltage reducing member includes: a magnetic body including a long-side portion and short-side portions continuously formed at both ends of the long-side portion in a longitudinal direction; and a plurality of conductive paths wound around the long-side portion. Each of the conductive paths is wound in parallel along the longitudinal direction of the long-side portion.

Surge voltage reducing member with reduced size

A noise filter () used for a plurality of conducting members (), the noise filter includes, a ring-shaped core () made from a magnetic material, the ring-shaped core is attached to the plurality of conducting members to reduce noise of currents flowing through each of the plurality of the conducting members. The ring-shaped core including: a base core () having a plurality of support pillar portions () extending outward in radial directions; and a plurality of divisional cores () each being placed between two of the plurality of the support pillar portions adjacent to each other in the circumferential direction, and each having two end surfaces connected to end portions of the two of the plurality of the support pillar portions.

Noise filter

A wire harness includes: a wire part including a plurality of electric wires gathered in a same direction; and a shield member which collectively surrounds an outer periphery of the wire part. The shield member is disposed to be interposed between adjacent electric wires of the plurality of electric wires in the wire part. The adjacent electric wires in the wire part are arranged at a predetermined interval such that a predetermined value of electrostatic capacitance is established between the electric wires.

Wire harness including shield member surrounding electric wires

A noise filter () is equipped with plural conductors () having respective winding portions () and a ring-shaped core which is inserted through the winding portions of the plural conductors and made of a magnetic material. The ring-shaped core has a core main body () having a pair of extension portions () and () that are connected to each other at one end and a link core () which is attached to the core main body at the other end and thereby connects the extension portions and. At least one of the extension portions and of the core main body is straight. The plural conductors are arranged in a row in a state that the straight extension portion is inserted through the winding portions of the plural conductors.

A conductor unit includes: a plurality of conductors each including a conducting portion covered with an insulating coating; an annular core that includes a first core constituent portion and a second core constituent portion combined with the first core constituent portion, and that interposes the conductors between the first core constituent portion and the second core constituent portion; and a holding member that makes the first core constituent portion and the second core constituent portion press and hold the conductors therebetween.

Conductor unit

A noise reduction unit () is equipped with a noise filter (), a housing () which houses the noise filter, and a sealing material () which is charged in the housing. The noise filter is equipped with conductors () having respective winding portions () and a ring-shaped core () which is made of a magnetic material and is inserted through the winding portions of the conductors. In the housing, a mounting portion () for the ring-shaped core has recesses () that are recessed in a direction going away from the ring-shaped core and support portions () that support the ring-shaped core so that gaps (S) are formed between the ring-shaped core and the bottom surfaces of the respective recesses. The sealing material goes into the gaps and comes into contact with both of the ring-shaped core and the bottom surfaces of the recesses in the mounting portion.

Noise reduction unit

An electric wire holding member () includes: a main body portion () formed in a cylindrical shape having a central axis line (X); a plurality of electric wire accommodating portions (, and) provided to penetrate through the main body portion () along the central axis line (X), respectively, and are formed to be capable of individually accommodating electric wires (, and), respectively, the electric wire accommodating portions (, and) being disposed along a circumferential direction around the central axis line (X) at equal intervals in a cross section as viewed from an axial direction; and a space portion () formed between two electric wire accommodating portions adjacent to each other along the circumferential direction to penetrate through the main body portion () along the central axis line (X).

Electric wire holding member and wire harness

A wire harness includes a wire portion formed by arranging three wires in the same direction, the respective wires having conductors and insulators coating outer circumferences of the conductors, and a braided wire. The three wires of the wire portion and the braided wire are disposed such that the braided wire is interposed between two wires of the wire portion adjacent to each other along a circumferential direction around a central axial line of the wire portion on a cross section of the wire harness when viewed from an axial direction along the central axial line, on a side of the central axial line from outer circumferential-side tangents connecting the conductors of the two wires.

Wire harness

A core unit includes a magnetic substance core formed in an annular shape, electric wires of plural phases being wound around the magnetic substance core at respective positions that are different from each other, and a restriction member that restricts the displacement of the electric wires about the axis of the magnetic substance core, the electric wires being wound around the magnetic substance core. The restriction member has a body fixed to one end of the magnetic substance core in the axial direction, and a plurality of cutout portions are formed in edge portions of the body, the cutout portions surround the respective electric wires wound around the magnetic substance core separately from the inside of the magnetic substance core in the radial direction.

Core unit and wire harness

A wire harness includes a wire portion having three wires arranged in the same direction, connectors connected to both end portions of the wire portion, a middle portion installed in an intermediate position of the wire portion between the connectors, a wire-side surge reducing section provided in the wire portion, a connector-side surge reducing section provided in each of the connectors, and a middle portion-side surge reducing section provided in the middle portion.

A wire harness includes an electric wire portion in which three electric wires are collected in the same direction, a braided wire which surrounds the outer circumferential side of the electric wire portion in a bundle, and an electric wire holding member which maintains the arrangement of the electric wires about a center axis line of the electric wire portion. The electric wire holding member includes a plurality of braided correction portions which protrudes in the direction of the center axis line from an inner circumferential surface of the outer shape holding portion between two adjacent electric wires of the electric wire portion in the circumferential direction about the center axis line, and is formed so that the braided wire approaches the center axis line in relation to outer circumferential tangential lines connecting conductor portions of the two electric wires in a cross-section perpendicular to the center axis line.

Wire harness and electric wire holding member

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

When a torque control value (TR) is larger than a threshold value and vehicular speed (SV) is lower than a threshold value an upper temperature limit setting unit sets the upper temperature limit of a motor generator at an upper temperature limit (TS) higher than a normally set upper temperature limit (TS). A torque limitation control controls limiting a torque of the motor generator, as based on a motor temperature (T) and the upper temperature limit set by the upper temperature limit setting unit.

Growing community of inventors

Toyota, Japan

Hiroshi Aihara