Yazaki Corporation

Akira Mita

Tetsuro Ide

Nobuyuki Asakura

Takashi Gohara

Takuo Matsumoto

Masaaki Okada

A waveguide includes a waveguide body which is hollow inside and made from a shape-retentive material, and a conductive inner coating layer which is electrically conductive and provided on an inner surface of the waveguide body. The waveguide uses an inner space of the conductive inner coating layer as a transmission path to transmit electromagnetic waves as signals. Two electric wires provided along the outer surface of the waveguide body serve respectively as a power line and a ground line to transmit electric power.

Waveguide for in-vehicle communication system

In a shield-processing structure of a shielded cable, the shielded cableand an earth cableare held between two resin membersand, and ultrasonic vibration is applied to the resin membersandwhile exerting a compressive force between the resin membersand, thereby forming a shield-processed portion. A shielded cable-receiving grooveand an earth cable-receiving grooveare formed in a joint surfaceof each of the resin membersand, and earth cable-holding projectionsare formed on each of the joint surfaces, and is disposed adjacent to the shielded cable-receiving groove, and projects into the earth cable-receiving groove. Opposite end portionsandof a distal end surface of each of the earth cable-holding projectionsare higher than a central portionthereof.

Shield-processing structure of shielded cable

In a shielded structure of a flat shielding electric wire, the flat shielding electric wire includes a plurality of shielding cores, an inner insulating sheathe covering each of the plurality of shielding cores, a conductive covering member covering the inner insulating sheathes, and a first outer insulating sheathe covering the conductive covering member. A pair of resin members sandwiches the flat shielding electric wire therebetween. A coating electric wire is provided between the flat shielding electric wire and one of the pair of resin members. The coating electric wire includes a conductive wire and a second outer insulating sheathe covering the conductive wire. The first outer insulating sheathe and the second outer insulating sheathe are fused by ultrasonic excitation so that the conductive wire is electrically connected to a part of the conductive covering member. At least one of the pair of resin members is formed with an ultrasonic attenuation groove so as to face at least a part of the second outer insulating sheathe.

Shielded structure of flat shielding electric wire

In a shielding structure of a shielding electric wire in which the shielding electric wire and a ground wire are interposed between two resin members, and a compressive force is caused to act on the resin members and an ultrasonic wave is simultaneously applied to fuse the resin portions, thereby forming a shielded portion, a protruded portionis provided on one of junction faces of the two resin members and a holeincluding a protrusion inserting portionfor inserting the protruded portionand a resin inflow portionprovided in an inner position from the protrusion inserting portionand having a smaller width than a width of the protrusion inserting portionis provided on the other junction face, and step faces at both sides on a boundary between the protrusion inserting portionand the resin inflow portionin the holeare formed to be a pair of inclined facesand

Shielding structure of shielding electric wire

A connecting method of connecting covered wires with each other and recessed resinous tips used in the method are provided. In the method, it is executed at the first step to put a connecting part constituted by a shield wire and a ground wire between a first resin tip and a second resin tip. The first resin tips has, around the connecting part, first recessed parts for accommodating the molten cover of the shield wire and second recessed parts for accommodating the molten cover of the ground wire. The second resin tip has second recessed parts formed for accommodating the molten cover of the ground wire.

Recessed resin tips used in a connecting method

The shield processing structure for a flat shielded cable includes: a flat shielded cable including two shielded cores, a drain wire, an aluminum foil shield member for covering the two shielded cores and the drain wire, and an insulating outer jacket for covering the aluminum foil shield member; and resin members for clamping the flat shielded cable with joining surfaces. The flat shielded cable is clamped between the pair of resin members, and a grounding wire is interposed between the flat shielded cable and the resin member. In this state, ultrasonic vibration are applied across the pair of resin members, whereby at least insulating outer jackets are melted and scattered, and a conductor of the grounding wire, on the one hand, and the grounding wire-use contact portion of aluminum foil shield member and the drain wire are brought into contact with each other.

Shield processing structure for flat shielded cable and method of shield processing thereof

A plurality of shielded core wires has a first diameter. A conductive cover member covers the shielded core wires. A first insulating sheath covers the conductive cover member. A pair of resin members, each formed with a groove having a semi-ellipsoidal shape are thermally integrated with each other for forming an ellipsoidal through hole while accommodating the first insulating sheath therein. A major axis length of a cross section of the ellipsoidal through hole is substantially identical with a length obtained by adding each first diameter, twice a thickness of the conductive cover member and twice a thickness of the first insulating sheath. A minor axis length of a cross section of the ellipsoidal through hole is substantially identical with by adding the first diameter, twice the thickness of the conductive cover member and twice the thickness of the first insulating sheath.

Shielding for multicore shielded wire

In at least one shielded core wire, a first conductive core wire is covered with a first insulating sheath. A conductive foil covers the at least one shielded core wire. A second insulating sheath covers the conductive foil. In a branch wire, a second conductive core wire is covered with a third insulating sheath. A part of the second insulating sheath and a part of the third insulating sheath are thermally fused so that the conductive foil and the second conductive core wire are electrically connected.

Wire branch processing for shielded wire

A connecting method of connecting covered wires with each other and recessed resinous tips used in the method are provided. In the method, it is executed at the first step to put a connecting part constituted by a shield wire and a ground wire between a first resin tip and a second resin tip. The first resin tip has, around the connecting part, first recessed parts for accommodating the molten cover of the shield wire and second recessed parts for accommodating the molten cover of the ground wire. The second resin tip has second recessed parts formed for accommodating the molten cover of the ground wire.

Growing community of inventors

Haibara-gun, Japan

Akira Mita