Patent classifications
H01B7/17
Leakage detection cable and method for manufacturing same
The present invention provides a leakage detection cable and a method for manufacturing the same, and the leakage detection cable detects a leaking liquid and includes: an electric wire core which includes one or more conductive wires, and a sheath layer that covers the one or more conductive wires; a detection unit which is coupled in a longitudinal direction of a surface of the electric wire core; and a first braided layer which is braided with non-conductive fibers and covers the detection unit, in which the detection unit has a predetermined resistance value that is proportional to a length, and reacts with the liquid such that an output electric current value is changed.
Leakage detection cable and method for manufacturing same
The present invention provides a leakage detection cable and a method for manufacturing the same, and the leakage detection cable detects a leaking liquid and includes: an electric wire core which includes one or more conductive wires, and a sheath layer that covers the one or more conductive wires; a detection unit which is coupled in a longitudinal direction of a surface of the electric wire core; and a first braided layer which is braided with non-conductive fibers and covers the detection unit, in which the detection unit has a predetermined resistance value that is proportional to a length, and reacts with the liquid such that an output electric current value is changed.
CABLE WITH REDUCED SUSCEPTIBILITY TO BUCKLING BREAKAGE
A cable including a plurality of internal insulated cores, each of which is formed by covering a conductor including a twisted wire with an insulator. The insulators have a tensile elastic modulus higher than that of a vinyl chloride resin for an electric wire and has a friction coefficient lower than that of the vinyl chloride resin for an electric wire. The cable may be a cab tire cable or a cab tire cord of a home appliance, a standard charger, or an on-board charger, for example, and is able to withstand long use without buckling breakage of the conductors.
WIRE HARNESS
A wire harness, wherein: the holder surrounds the electric wire and is inserted into the end of the pipe, a groove extending along a circumferential direction of the holder and facing an inner circumferential surface of the pipe is provided on an outer circumferential surface of the holder, and the end of the pipe is crimped and the holder is flexurally deformed, whereby the inner circumferential surface of the pipe and the outer circumferential surface of the holder are brought into intimate contact with each other, and an inner circumferential surface of the holder and an outer circumferential surface of the electric wire are brought into intimate contact with each other, a crimped portion of the end of the pipe being reduced in diameter inward in a radial direction of the pipe and being engaged with the groove of the holder.
Combination cable for vehicle
Provided is a combination cable for a vehicle that is capable of reducing noise interference and cross-talk between twisted pair wires. The combination cable for a vehicle includes a wire bundle and a sheath covering the wire bundle. The wire bundle includes a two-core first twisted pair wire, a two-core second twisted pair wire, a one-core first wire, and a one-core second wire. When viewed in cable cross-section, the wire bundle has the first twisted pair wire disposed on one side of a center line that runs from a center of the first wire to a center of the second wire, and has the second twisted pair wire disposed on the other side of the center line, and the first twisted pair wire and the second twisted pair wire are separated from each other.
Combination cable for vehicle
Provided is a combination cable for a vehicle that is capable of reducing noise interference and cross-talk between twisted pair wires. The combination cable for a vehicle includes a wire bundle and a sheath covering the wire bundle. The wire bundle includes a two-core first twisted pair wire, a two-core second twisted pair wire, a one-core first wire, and a one-core second wire. When viewed in cable cross-section, the wire bundle has the first twisted pair wire disposed on one side of a center line that runs from a center of the first wire to a center of the second wire, and has the second twisted pair wire disposed on the other side of the center line, and the first twisted pair wire and the second twisted pair wire are separated from each other.
Electric wire conductor, covered electric wire, and wiring harness
An electric wire conductor having both flexibility and a space-saving property. Also provided are a covered electric wire and a wiring harness containing the electric wire conductor. An electric wire conductor contains a wire strand containing a plurality of elemental wires twisted together. The electric wire conductor has a flat portion in which a cross section intersecting an axial direction of the wire strand has a flat shape. Assuming a conductor cross-sectional area of the flat portion as s mm.sup.2 and a vacancy ratio defined as a ratio of vacancies not occupied by the elemental wires in a cross section of the flat portion as v %, the conductor cross-sectional area and the vacancy ratio satisfies v>0.29 s+2.0. The covered electric wire contains electric wire conductor and an insulator covering the conductor. The wiring harness contains the covered electric wire.
Electric wire conductor, covered electric wire, and wiring harness
An electric wire conductor having both flexibility and a space-saving property. Also provided are a covered electric wire and a wiring harness containing the electric wire conductor. An electric wire conductor contains a wire strand containing a plurality of elemental wires twisted together. The electric wire conductor has a flat portion in which a cross section intersecting an axial direction of the wire strand has a flat shape. Assuming a conductor cross-sectional area of the flat portion as s mm.sup.2 and a vacancy ratio defined as a ratio of vacancies not occupied by the elemental wires in a cross section of the flat portion as v %, the conductor cross-sectional area and the vacancy ratio satisfies v>0.29 s+2.0. The covered electric wire contains electric wire conductor and an insulator covering the conductor. The wiring harness contains the covered electric wire.
CABLES WITH IMPROVED COVERINGS TO REDUCE SHRINKBACK AND METHODS OF FORMING THE SAME
A cable includes cable one or more conductors and a covering surrounding the one or more conductors. The covering is formed from a composition including polyethylene and a polyolefin elastomer, where the composition is crosslinked. A method of forming the cable is also provided.
MULTI-CORE CABLE ASSEMBLING METHOD AND MULTI-CORE CABLE ASSEMBLY PRODUCING METHOD
An assembling method for a multi-core cable having a plurality of electrical insulated wires is designed to connect one-end-portions of the electrical insulated wires to electrode patterns, respectively, of one circuit board, correspondingly connect other-end-portions of the electrical insulated wires to electrode patterns, respectively, of the other circuit board, compute intersection coefficients on one end side and the other of the cable, and iterate interchanging connecting destinations for the one-end-portions of the electrical insulated wires, correspondingly interchanging connecting destinations for the other-end-portions of the electrical insulated wires, and computing the intersection coefficients on the one end side and the other of the cable. The connecting destinations for the electrical insulated wires to the electrode patterns are determined in such a manner that a maximum intersection coefficient denoting either larger one of the respective intersection coefficients of the one end side and the other of the cable is made small.