126results about "Concentric cables" patented technology

In some embodiments, a cable can include an electrically conductive inner core. A first insulation layer can be disposed about the inner core. An electrically conductive layer can be disposed about the first insulation layer. A second insulation layer can be disposed about the electrically conductive layer. A first polymer jacket can be disposed about the second insulation layer. The first polymer jacket can include a first layer of armor strength members disposed therein. A second polymer jacket can be disposed about the first polymer jacket. The second polymer jacket can include a second layer of armor strength members disposed therein. An outer polymer jacket can be disposed about the second polymer jacket. At least one of the first polymer jacket, the second polymer jacket, and the outer polymer jacket can be formed from an aliphatic polyketone polymer, an ethylene-propylene copolymer, a polyolefin elastomer, a polypropylene, or a cross-linkable polyethylene.

The invention provides a coaxial cable sealing assembly for a discharge switch of a high-voltage pulse capacitor. The coaxial cable sealing assembly comprises an inner conductor sealing sleeve, an insulating layer sealing assembly, an outer conductor sealing assembly and a sheath sealing assembly which are used for sealing an inner conductor, an insulating layer, an outer conductor and a sheath of a coaxial cable layer by layer. Through a multi-layer sealing structure, four layers of the coaxial cable are respectively and independently sealed, and a cooling liquid and volatile gas are effectively prevented from leaking through a conductor part, so that the problems of poor air tightness, cooling liquid leakage and the like caused by insufficient air gap sealing of the conductor part of the coaxial cable in the prior art are solved; the operation reliability of the liquid cooling radiator is obviously improved; the sealing assemblies are stably fixed through threaded connection between the pressing rings and the sleeves, meanwhile, the sealing gaskets are arranged in the pressing rings, pressure is applied by rotating the pressing rings, the sealing gaskets are tightly attached to the end faces of the coaxial cables, and efficient and reliable airtight sealing is further guaranteed.

The invention relates to the technical field of cable preparation, in particular to a superconducting semi-rigid cable made of high-purity aluminum and a preparation method thereof.The method comprises the steps that the high-purity aluminum is adopted as an inner conductor, and the inner conductor is preprocessed; coating the surface of the pretreated inner conductor with a PTFE mixture by using a pushing machine at normal temperature to obtain a normal-temperature pushing core wire; the qualified normal-temperature pushing core wire is wound on a cable reel and then placed in a vacuum high-temperature furnace to be subjected to vacuum sintering so as to obtain an inner conductor wrapped with an insulating layer; and the inner conductor wrapped with the insulating layer penetrates into the processed pure aluminum outer conductor tube, and the outer conductor is wrapped with PTFE to form an outer protective sleeve. According to the invention, the performance stability of the superconducting semi-rigid cable preparation can be improved.

A capacitive power transmission cable, having at least two sets of conductive strands, the sets of strands being insulated from each other and in capacitive relationship, the one with the other: wherein the conductive strands are laid at least substantially in a multiples of six layer structure, with substantially equal numbers of strands of both sets; each layer has strands of one set alternating with strands of the other set; and the strands of the respective sets have different contrasting color.

The invention relates to the technical field of water-cooled cables, and discloses a novel coaxial water-cooled cable, which comprises an outer sheath and a sealing mechanism, and is characterized in that the sealing mechanism comprises a connecting base, a limiting locking block, a locking bar, a contact ring groove, a spring, a contact ring, a connecting cover, a second limiting locking block, a second locking bar and the like; according to the device, stable mechanical locking is achieved through double clamping connection and friction contact of the limiting locking blocks, the locking strips and corresponding parts, the spring pushes the contact ring to be attached to the protruding connecting ring to form elastic sealing, the connection stability and the sealing performance are remarkably improved, and the sealing performance is greatly improved. The inner conductor is spirally wound, the outer conductor is annularly distributed, and the inner water pipe is used for circulating water cooling, so that the synergistic performance of electric conduction and heat dissipation is greatly optimized, the multi-layer insulation structure is matched with the outer sheath for protection, the insulation and protection performance is comprehensively enhanced, and the cable is suitable for a large-current transmission scene of high-power equipment.

The utility model discloses a lightweight anti-attenuation 16-core three-layer shielding coaxial cable which comprises 16 coaxial cable cores which are arranged in a square shape and form a cable core together with a polyester staple fiber buffer core material. The coaxial cable core comprises a central conductor, a foaming FEP insulating layer, a copper-plastic composite longitudinal wrapping inner shielding layer, a tinned copper wire braided middle shielding layer, a copper-plastic composite wrapping outer shielding layer and a polyurethane coating layer, and the shielding density of the tinned copper wire braided middle shielding layer is 40-60%; a para-position type wholly aromatic copolyamide stretched fiber woven isolation net and an irradiation crosslinking high-density polyethylene outer sheath layer are sequentially coated outside the cable core. The coaxial cable has good flexibility, the shielding layer is optimized to be of a three-layer shielding structure, the attenuation resistance is enhanced, meanwhile, the copper wire consumption and the material cost are reduced, and light-weight production is achieved.

The invention relates to a power cable (20) comprising: - a hybrid conductor (21) comprising: a central portion (22) of the Litz wire type having a plurality of electrically conductive strands (23) electrically insulated from each other, a crown portion (25) having electrically conductive strands (26) not electrically insulated from each other, the thickness of the crown portion (25) being calculated to be less than or equal to a skin thickness (δ), and - an insulator (27) disposed around the hybrid conductor (21). Figure for abbreviation: Figure 5

A power cable includes a conductor having a first section, a second section, and a weld metal located axially between the sections. The first section includes a central element made of a first metal and an outer structure made of a second metal surrounding the central element. The second section includes the second metal. An axial end section of the first section extends to the weld metal and includes a central axially extending member surrounded by the outer structure, wherein the member includes a first axial part made of the first metal and a second axial part made of the second metal. The first axial part has a first end welded to the central element and a second end welded to a first end of the second axial part. A second end of the second axial part and the outer structure are welded to the second section via the weld metal.

A capacitive cable comprises: (a) a first plurality of conductors for connection to a power source, (b) a second plurality of conductors for connection to a load, and (c) a dielectric material between the first plurality of conductors and the second plurality of conductors, wherein each conductor is individually insulated, and wherein at least one of the conductors of the first plurality of conductors and at least one of the conductors of the second plurality of conductors are woven or wound into one or more bundles such that each individual conductor repeatedly transitions, along a length of the one or more bundles, between an outside of the one or more bundles and an inside of the one or more bundles. The capacitive cable can be used as both a transmission line and a return line.

The invention relates to a combustion-resistant fireproof coaxial cable, and relates to the field of coaxial cables. The cable comprises a cable body and an outer coating, the cable body comprises an insulating layer, fireproof separators, conductors, a tension steel cable, a flame-retardant layer and an outer protective layer, the multiple fireproof separators are arranged in the insulating layer at intervals in the axial direction of the cable body, and the multiple conductors and the tension steel cable are arranged in the insulating layer; the plurality of conductors and the tension steel cables are arranged in a manner of respectively penetrating through the plurality of fireproof separators in a scattered manner, the insulating layer is sleeved with a flame-retardant layer, the flame-retardant layer is sleeved with an outer protective layer, and the outer protective layer of the cable body is sleeved with the outer coating layer. Through an innovative scheme of multi-level synergistic flame retardance, low-toxicity and low-smoke design and environment-friendly residue control, the core problems that a traditional coaxial cable is weak in flame retardance, high in toxicity and large in pollution are solved.

The invention relates to a cable with a conductive coating. The disclosed cable may include at least one electrical conductor, an inner electrical insulator surrounding the at least one electrical conductor, and an electrical shield disposed around the inner electrical insulator. The cable may include a conductive material disposed between adjacent layers of the cable. In one example, an electrocladding layer may be disposed in an electrical shield, for example, in an overlap region. The invention also discloses a flowable conductive material which can flow into the gap during operation of the cable.

The utility model discloses a vertical anti-slip cable for a wind power generation system, which comprises a cable body, the outermost layer of the cable body is a sheath layer, and the sheath layer is provided with protrusions. Relates to the technical field of cables, protrusions are arranged on the outermost sheath layer of the cable at equal intervals, for example, when the protrusions are arranged to be circular rings, the circular rings are lapped on a clamp or a ribbon for fixing the cable, so that the cable can be effectively prevented from slipping, and the stability of the cable is enhanced; when the protrusions are arranged to be semi-circular rings, the sides, without the semi-circular rings, of the cables make contact with the inner wall of the wind power tower tube, the clamps or the ribbons tightly fix the cables at the moment, the cables can still make tight contact with the inner wall of the wind power tower tube, large friction is generated, slipping is avoided, and the clamps or the ribbons are located below the semi-circular rings respectively. In other words, each semi-circular ring is lapped on a clamp or a cable tie, so that the semi-circular rings play a supporting role, the cable is effectively prevented from slipping, and the stability of the cable is further improved.

The utility model provides a coaxial cable with a built-in reinforcing layer, which relates to the technical field of cables and comprises a reinforcing core, three sub-wires distributed in an annular array are arranged outside the reinforcing core, anti-interference layers are arranged outside the sub-wires, and protective sleeves are respectively arranged outside the three sub-wires. According to the coaxial cable, the heat dissipation performance of the cable can be improved through the heat dissipation assembly, the temperature of the cable during operation can be effectively reduced due to the good heat dissipation capacity, insulation material aging caused by high temperature is reduced, and therefore the overall service life of the cable is prolonged, and replacement and maintenance cost is reduced; the anti-bending and anti-compression performance of the cable can be improved through the anti-compression assembly, when the cable is subjected to external extrusion, the stress of the cable can be uniformly distributed, pressure from different directions can be resisted, excellent structural strength is provided, and potential safety hazards such as short circuit, electric leakage and even fire hazards caused by damage of an insulating layer and exposure of a conductor are avoided.

The invention provides a low-frequency high-power feeding device, which relates to the technical field of low-frequency electromagnetic communication. The device comprises a first impedance converter, a double-layer feed cage and a second impedance converter which are sequentially connected through a first wire; the transformation ratio of the first impedance converter is a fixed value, the double-layer feed cage comprises a frame, an installation space is formed in the frame, and a first feed line ring and a second feed line ring are arranged in the installation space; the first feed line ring comprises a plurality of first wires arranged along the axial direction; the second feed line ring comprises a plurality of second wires arranged along the axial direction; the double-layer feed cage of the invention adopts a plurality of first wires and a plurality of second wires to form a coaxial double-layer cage structure, increases an effective current-carrying cross-section, improves transmission efficiency, has no leakage, can withstand a large current and withstand a certain voltage, realizes the matching of a transmitter output impedance and an antenna impedance with a characteristic impedance of the double-layer feed cage through an impedance converter, and realizes long-distance low-loss transmission of a low-frequency high-power signal from a transmitter to a tuning device.

The invention relates to a high-voltage cable (6), in particular for electrostatically charging a paint in a painting system for painting motor vehicle body components (14) with a paint. The high-voltage cable (6) according to the invention has an electrically conductive first conductor (7) extending in the longitudinal direction of the cable. According to the invention, the high-voltage cable (6) additionally has an electrically conductive second conductor (9) extending in the longitudinal direction of the cable, wherein the second conductor (9) is electrically insulated from the first conductor (7). The invention further relates to a coating system having such a high-voltage cable (6) and to the novel use of such a high-voltage cable (6) in a coating system.

The utility model discloses a high-strength pressure-resistant anti-corrosion waterproof ultrahigh-voltage power cable, which comprises a conductor, a semi-conductive wrapping tape is wrapped outside the conductor, a conductor shielding layer, an insulating layer and an insulating shielding layer are jointly extruded outside the semi-conductive wrapping tape, and a semi-conductive buffer water-blocking tape is wrapped outside the insulating shielding layer. A quick-setting liquid rubber waterproof layer is coated outside the semi-conductive buffer water-blocking tape, an anti-impact mixed-line woven reinforcing layer is arranged outside the quick-setting liquid rubber waterproof layer, a butyl rubber water-blocking pressure-reducing layer is arranged outside the anti-impact mixed-line woven reinforcing layer, a semi-conductive buffer water-blocking composite tape is arranged outside the butyl rubber water-blocking pressure-reducing layer, and the semi-conductive buffer water-blocking composite tape is arranged outside the semi-conductive buffer water-blocking composite tape. An FEP sheath layer is extruded outside the semi-conductive buffer water-blocking composite belt, and an acrylic acid anti-corrosion paint anti-corrosion layer is arranged outside the FEP sheath layer. According to the utility model, the mechanical performance, tensile performance, flexibility, waterproof performance, corrosion resistance and the like of the cable are improved, the mechanical strength and electrical characteristics of the cable are guaranteed, the service life is prolonged, and the market demand is better satisfied.

The present disclosure relates to a coaxial cable for nuclear power plants, and more specifically, relates to a coaxial cable for nuclear power plants, which includes an inner conductor arranged at a center of a cable, an insulating layer arranged in a form of surrounding an outer periphery of the inner conductor, and formed of a foaming material forming many porous cells, and a sheath layer arranged in a form of surrounding an outer periphery of the insulating layer. Activation energy of the insulating layer is within a range of 2.06 eV to 2.84 eV. Accordingly, it is possible to provide the coaxial cable for nuclear power plants which can maintain a certain level of performance even after the elapse of a specified lifespan.

Electrical cables and optical waveguides are disclosed as including an electrically insulative foam. The electrically insulative foam can coat at least one electrical conductor of the electrical cable. The electrically insulative foam can coat the optical fiber of the waveguide. The electrically insulative foam can also define a waveguide.

The invention relates to a high-voltage cable (6), in particular for the electrostatic charging of a coating in a coating system for coating motor vehicle body components (14) with a coating. The high-voltage cable (6) according to the invention has a first conductor (7) extending longitudinally and being electrically conductive. According to the invention, the high-voltage cable (6) additionally has a second conductor (9) extending longitudinally and being electrically conductive, wherein the second conductor (9) is electrically insulated from the first conductor (7). Furthermore, the invention also includes a coating system with such a high-voltage cable (6) and the novel use of such a high-voltage cable (6) in a coating system.

A capacitive cable comprises: (a) a first plurality of conductors for connection to a power source, (b) a second plurality of conductors for connection to a load, and (c) a dielectric material between the first plurality of conductors and the second plurality of conductors, wherein each conductor is individually insulated, wherein at least one of the conductors of the first plurality of conductors and at least one of the conductors of the second plurality of conductors are woven or wound into one or more bundles such that each individual conductor repeatedly transitions, along a length of the one or more bundles, between an outside of the one or more bundles and an inside of the one or more bundles, wherein the first plurality of conductors is woven or wound into a first bundle and the second plurality of conductors is woven or wound into a second bundle, and wherein the bundles are distributed radially with respect to each other. The capacitive cable can be used as both a transmission line and a return line.

The application relates to the technical field of cable preparation, in particular to a superconducting semi-rigid cable using high-purity aluminum and a preparation method thereof. The method comprises the following steps: using high-purity aluminum as an inner conductor, and pretreating the inner conductor; using a pusher to coat a PTFE mixture on the surface of the pretreated inner conductor at normal temperature to obtain a normal-temperature pusher core wire; winding the qualified normal-temperature pusher core wire on a cable reel and then placing the cable reel in a vacuum high-temperature furnace to perform vacuum sintering, so as to obtain an inner conductor wrapped with an insulation layer; and passing the inner conductor wrapped with the insulation layer into a pure aluminum outer conductor pipe which has been processed, and coating PTFE on the outer conductor to form an outer protective sleeve. The application can improve the performance stability of the superconducting semi-rigid cable preparation.

The invention relates to a cable unit designed for connecting a gradient coil, which is designed to generate a magnetic field gradient in one spatial direction, to a power amplifier, comprising at least one supply line, wherein the supply line comprises at least two cable elements in at least sections, wherein the at least two cable elements are electrically connected in parallel.

The invention relates to the technical field of cables, and provides an aerospace flexible coaxial cable and a manufacturing method thereof. The conductor layer comprises an anti-torsion core, an inner twisted layer, a pressure-bearing layer and an outer twisted layer from inside to outside, and the pressure-bearing layer is embedded between the inner twisted layer and the outer twisted layer; the outer side of the conductor layer is provided with an insulating layer which is divided into an inner layer, a middle layer and an outer layer. The insulating layer comprises an inner lining layer, a buffer layer and an outer lining layer. The outer side of the insulating layer is longitudinally wrapped with a shielding tape, and the shielding tape is of an axial continuous fluctuating structure and comprises an outer convex part and an inner concave part; every two concave parts form a group, and the concave parts are of a high-low structure; a shielding layer is woven on the outer side of the shielding tape, the outer side of the shielding layer is filled with a filling layer, and the outer side of the filling layer is wrapped with a sheath. The pressure-bearing layer is spirally wound between the inner twisted layer and the outer twisted layer to absorb the stress of the outer twisted layer and provide a certain bending deformation space for the outer twisted layer, so that the stress borne by the outer twisted layer is transferred to the pressure-bearing layer, and the service life of the cable can be prolonged.

The utility model discloses a coaxial cable outer conductor branch connecting device and a cable system. The coaxial cable outer conductor branch connecting device comprises a first connecting assembly and a second connecting assembly. The first connecting assembly comprises a first conductor used for being electrically connected with a first outer conductor located at the connecting end of the first coaxial cable, a second conductor used for being electrically connected with a second outer conductor located at the connecting end of the second coaxial cable, and a conducting bar used for connecting the first conductor and the second conductor. The conducting bar is also used for electrically connecting the conducting cores of the plurality of single-core cables; the second connecting assembly is used for electrically connecting the first inner conductor located at the connecting end of the first coaxial cable with the second inner conductor located at the connecting end of the second coaxial cable. The coaxial cable outer conductor branch connecting device brings new application to the coaxial cable, so that the application of the coaxial cable is wider, and cable systems are more diversified.

The utility model discloses a multilayer shielding high-voltage coaxial cable, which comprises a cable core, a cable core protection layer, a first filling layer, a shielding layer, a second filling layer, an arc-shaped reinforcing block, a first insulating layer and a second insulating layer, the cable core protection layer is wrapped on the outer surface of the cable core, the first filling layer is arranged on the outer side of the cable core protection layer, and the shielding layer is arranged on the outer side of the cable core protection layer. The first filling layer is wrapped by a shielding layer, the shielding layer is wrapped by a second filling layer, the second filling layer is provided with at least two arc-shaped reinforcing blocks, the arc-shaped reinforcing blocks are tightly attached to the second filling layer, the two arc-shaped reinforcing blocks are connected through a steel wire rope, and first insulating layers are arranged on the outer sides of the arc-shaped reinforcing blocks. And a second insulating layer is arranged outside the first insulating layer. The device is reasonable in design; and the arc-shaped reinforcing blocks are deformed after being extruded so as to protect the cable.

The application provides a cable and a preparation method thereof. The cable provided by the application comprises at least a conductor, an inner shielding layer, an insulation layer and an outer shielding layer; the inner shielding layer is arranged outside the conductor, the insulation layer is arranged outside the inner shielding layer, and the outer shielding layer is arranged outside the insulation layer; wherein the insulation layer comprises, by mass fraction, 100 parts of polypropylene, 3-5 parts of a first antioxidant; the first antioxidant is composed of antioxidant 1010, antioxidant 168 and antioxidant 330, and the mass ratio of the antioxidant 1010, the antioxidant 168 and the antioxidant 330 is (3-7):(1-3):(1-4). The cable has excellent electrical insulation performance (can be applied to a voltage level of 66 kV and above) and mechanical performance.

The utility model discloses a radiation-resistant long-life low-noise coaxial cable for a nuclear power station, which comprises a conductor formed by twisting tinned soft copper, and a wrapping semi-conductive layer, an insulating layer, an extruded semi-conductive layer, a comprehensive shielding structure, a wrapping high-temperature-resistant layer and an outer sheath are sequentially arranged outside the conductor. The tinned soft copper conductors are stranded, so that the structural stability is ensured, and oxidation is avoided; the insulating layer is made of radiation-resistant and long-service-life crosslinked polyethylene, so that the transmission performance is ensured to be stable; noise is reduced through the semi-conductive layer, and signal quality is improved; a comprehensive shielding structure is adopted, so that the electromagnetic compatibility is enhanced; the high-temperature-resistant layer is arranged to meet the high-temperature requirement of the And the outer sheath is made of a radiation-resistant polyolefin material, so that the mechanical property and the service life are ensured. Overall performance is excellent, and the system is suitable for complex environments.

Disclosed is an armored cable assembly including a core having a notched assembly tape about a plurality of conductors. A metal sheath surrounds the core.

The utility model relates to the technical field of leaky coaxial cables, in particular to a leaky coaxial cable with a high withstand voltage level, which comprises an inner conductor, an insulating layer, a longitudinal wrapping copper strip and a sheath which are sequentially arranged from inside to outside, and an inorganic ceramic insulating layer is arranged between the insulating layer and the longitudinal wrapping copper strip. According to the leaky coaxial cable with the high voltage withstanding grade, the inorganic ceramic insulating layer is arranged between the insulating layer and the longitudinally-wrapped copper strip, so that the longitudinally-wrapped copper strip can be separated from the insulating layer, damage to the insulating layer caused by burrs on the longitudinally-wrapped copper strip is avoided, and meanwhile, the inorganic ceramic insulating layer can improve the insulating effect; in addition, by controlling the thickness of the inorganic ceramic insulation layer, the insulation performance of products of various specifications can be ensured, and the insulation and high-voltage resistance of the cable is improved on the basis of the insulation and high-voltage resistance of the cable.