Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Takashi Takada

Takashi Fujii

Kumiko Tachibana

Shintaro Nanbara

Noriaki Iwaguchi

Kazushi Kusawake

Kenji Ito

Kazuyuki Sohma

Itaru Sakabe

Kouhei Yoshikawa

Yusaku Maeda

Kenji Itou

Tetsuya Nakanishi

Toshiaki Kakii

Yoshinori Yamamoto

Tatsuya Konishi

Tomoyuki Hattori

Shigeyuki Tanaka

Seiji Shitama

Kouji Nishi

Naoyuki Oshiumi

Masuo Iida

Hironobu Rachi

Takao Fukuda

Shintaro Nambara

It is aimed to provide a wiring harness excellent in the waterproof performance of a part covered with a water blocking member also under a high temperature environment, a low temperature environment and a cold heat environment. In a wiring harness () in which an exposed conductor part () of an insulated wire () is covered with a water blocking member (), the water blocking member () is a cured product of a composition containing a urethane (meth)acrylate and has two or more glass transition points.

Wiring harness

A wire waterproof structure including a water-stopping material, wherein: the water-stopping material is configured to seal at least a partial region of a conductor comprising an assembly of a plurality of strands, the water-stopping material contains a resin material, and a filler dispersed in the resin material, and the filler has an average particle size of 1 μm or more and 15% or less of an outer diameter of the strands, and a content in the water-stopping material of 1 mass % or more and 20 mass % or less, relative to the resin material.

Wire waterproof structure

Provided is a composite material molded article including soft magnetic powder and resin containing the soft magnetic powder in a dispersed state. The composite material molded article is provided with a roughened region having an arithmetic average roughness Ra of 3.0 μm or more on at least a portion of its surfaces.

Composite material molded article, reactor, comprising a roughened surface

A reactor including: a coil that includes a winding portion; a magnetic core that includes an inner core portion that is located inside the winding portion and an outer core portion that is located outside the winding portion; an inner interposed member that is interposed between an inner surface of the winding portion and the inner core portion; and an end surface interposed member that is interposed between an end surface of the winding portion and the outer core portion. The inner interposed member is provided with first positioning portions that engage with the end surface interposed member and are located so as to respectively face a first pair of surfaces of the outer core portion to position the outer core portion, the first pair of surfaces being composed of a pair of surfaces that face each other.

Reactor

Provided is a composite material molded article including soft magnetic powder and resin containing the soft magnetic powder in a dispersed state. The composite material molded article includes a parting line corresponding to a parting surface of a mold for molding the composite material molded article, and an inner core portion to be arranged inside a coil. A peripheral surface includes surfaces along a circumferential direction of a magnetic flux excited in the inner core portion by the coil, and the parting line is formed to split a peripheral direction of the peripheral surface.

Composite material molded article and reactor

A waterproofing structurefor a core wire exposed portion of an electrical wire includes: an electrical wirethat includes a core wire exposed portions; an internal waterproofing portionthat encloses the core wire exposed portionto waterproof the core wire exposed portion; and an exterior memberthat forms a space S that is separated from an external space, around the internal waterproofing portion

Waterproofing structure for core wire exposed portion of electrical wire

Provided is soft magnetic powder constituted by an Fe alloy containing Si, in which soft magnetic particles of the soft magnetic powder include a SiOlayer formed on a surface of the particles, and a surface layer formed directly on the SiOlayer. The surface layer includes a first material that constitutes a matrix and a second material that is dispersed in the matrix. The first material is silicone or phosphate, and the second material is silicone or phosphate and is different from the first material.

Soft magnetic powder, magnetic core, method for manufacturing soft magnetic powder, and method for manufacturing magnetic core

Provided is an anticorrosive containing a curable resin composition and that has a high anticorrosive capability and a good adhesion to an oily surface, and a terminal-attached covered electric wire and a wiring harness using the anticorrosive. The terminal-attached covered electric wire has a contact portion where a wire conductor of a covered electric wire and a connection terminal contact each other. The contact portion is covered with the anticorrosive. The wiring harness contains the terminal-attached covered electric wire. The curable resin composition contains 100 parts by mass of a polymer of a (meth)acrylate monomer, the polymer having two or more (meth)acrylate groups, 40 to 90 parts by mass of isobornyl (meth)acrylate, and 1 to 15 part by mass of an alkyl (meth)acrylate represented by formula 1, where R1 is either H or CH3, and R2 is an alkyl group having a carbon number of 8 to 13, 

Anticorrosive, terminal-attached covered electric wire, and wiring harness

A wire harness can ensure waterproofness of an exposed conductor portion, and even when at least one of insulated wires is exposed to a high temperature, can suppress loosening of a rubber stopper of a waterproofing terminal. An outer periphery of a region containing an exposed conductor portion and coating material end portions is continuously covered with a protective film. At each of the coating material end portions, a gap between a coating material and the protective film covering the coating material is sealed with a waterproofing agent. At least one insulated wire has a flow path through which gas flows, the flow path being created in gaps between strands that constitute a conductor of the insulated wire and reaching from a coating material end portion opposite to the coating material end portion adjacent to the exposed conductor portion to a splice portion.

Waterproof wire harness

Provided is a wire harness in which waterproofness of an exposed conductor portion can be ensured, and even when at least one of insulated wires is exposed to a high temperature, a rubber stopper of a waterproofing terminal can be kept from coming off. An outer peripheral surface of an exposed conductor portion where partially exposed conductors of a plurality of insulated wires are joined together, and outer peripheral surfaces of coating material end portions adjacent to the exposed conductor portion, is continuously covered with a waterproofing agent. A gap between adjacent insulated wires is sealed with the waterproofing agent at the coating material end portions adjacent to the exposed conductor portion. At least one insulated wire of the plurality of insulated wires has a flow path through which gas flows, the flow path being created in gaps between strands that constitute a conductor of the insulated wire.

Wire harness having a waterproofing agent

Provided is a reactor that can be manufactured without holding an assembly when the assembly is fixed to a mounting plate via a bonding layer. The reactor includes a coil, a magnetic core, an interposed insulating member, a metal mounting plate, and a bonding layer. The interposed insulating member is provided with an inwardly interposed portion, a first interposed end face portion, and a second interposed end face portion. The interposed insulating member is obtained by combining a plurality of divided pieces that includes a divided piece having the first interposed end face portion, and a divided piece having the second interposed end face portion. The divided pieces are respectively provided with engaging portions that engage with each other, and the first interposed end face portion and the second interposed end face portion are each provided with a leg piece that separates the coil from the mounting plate.

Provided is a coated optical fiber excellent in both characteristics of the microbending loss resistance and the low-temperature characteristic. The coated optical fibercomprises an optical fiberthat has a cladding layer composed of glass formed on an outer periphery of a glass core, a primary coating layerthat coats an outer periphery of the optical fiber, and a secondary coating layerthat coats an outer periphery of the primary coating layer, wherein the primary coating layerhas a Young's modulus of 1.2 MPa or less, the secondary coating layerhas a Young's modulus of 700 MPa or more, and the primary coating layercontains tin in a content of 70 ppm or less.

Coated optical fiber

A coated glass fibercomprising a glass fiberand one or more coating layers each composed of an ultraviolet curable resin on the outer circumference of the glass fiber, wherein the ultraviolet curable resin constituting at least one of the coating layers is formed of an ultraviolet curable coating material containing a silane coupling agent and a photoacid generator. The coated optical fibercoated optical fiber having a high dynamic fatigue coefficient since adhesion between the surface of the glass fiber and the resin coating layer is satisfactory.

A coated glass fibercomprising a glass fiberand a resin coating layer containing an inner layerand an outer layerprovided on the outer circumference of the glass fiber, wherein the resin constituting the inner layeris formed by curing a urethane-based ultraviolet curable resin composition containing a surfactant in an amount of 0.1 to 1.0% by weight and Young's modulus thereof is from 0.3 to 10 MPa. The coated optical fiber has a good water immersion resistance.

Optical fiber

A coated optical fibercomprising a glass fiberand a primary coating layeron the outer circumference of the glass fiber, wherein a resin constituting the primary coating layercontains ingredient(s) having a molecular weight of more than 1,000, which is extracted with methyl ethyl ketone, in an amount of 5% by weight or more and 21% by weight or less and has a Young's modulus of 0.2 to 1.0 MPa. The resin constituting the primary coating layerof the coated optical fiberhas a good curability, and the coated optical fiberexhibits a reduced microbending loss.

Growing community of inventors

Yokohama, Japan

Takashi Takada