71 results about "Copper conductor" patented technology

This invention discloses an environmentally friendly, green, halogen-free flame-retardant cable and its preparation method, relating to the field of cable technology. The cable includes a tin-plated copper conductor at its center. An inner shielding layer, an insulation layer, and an outer shielding layer are extruded onto the conductor using a three-layer co-extrusion process to form an insulated core. The insulated core is then wrapped with an oxygen-free soft copper strip as a metallic shielding layer, followed by a semi-conductive water-resistant tape pad, then longitudinally wrapped with an aluminum-plastic composite tape and extruded with polyethylene. A waterproof layer is wrapped with a double-layer high-strength corrosion-resistant alloy tape as an armor layer. The outermost layer of the cable is extruded with a flame-retardant outer sheath. This sheath uses polyethylene as a base material, adding maleic anhydride-modified oleic acid and peroxide, and incorporating zinc oxide and magnesium oxide to form an ion network structure, while also incorporating flame-retardant fillers. This invention exhibits good tensile strength, electrical insulation performance, compressive and tensile strength, and bending performance, while also possessing excellent elongation at break, low-temperature crack resistance, and halogen-free flame-retardant characteristics.

The utility model discloses a new energy automobile copper clad aluminum braided shield high voltage cable in the technical field of high voltage cable, including stranded copper conductor, the fixed extrusion of insulating layer has on the outer wall of stranded copper conductor, the insulating layer is cross -linked polyethylene or cross -linked polyolefin insulating layer, the insulating layer outside fixedly set semiconductive inner layer, fill in the PP filling strip between semiconductive inner layer with insulating layer, the outer wall of semiconductive layer extrudes and has copper clad aluminum braided shield layer, copper clad aluminum braided shield layer is 0.1~0.2 tinned copper clad aluminum wire, and with semiconductive inner layer is 360 degree ring pressure contact, the outer wall of copper clad aluminum braided shield layer fixed extrusion has aluminum foil layer, the outer wall of aluminum foil layer fixed extrusion has semiconductive outer layer, the outer wall of semiconductive outer layer fixed extrusion has cross -linked polyolefin sheath, the utility model discloses can reduce the shielding layer direct current resistance, guarantees the continuity of grounding, promotes high -frequency shielding efficiency, strengthens in 100kHz~30MHz frequency band shielding attenuation.

The application discloses a kind of corrosion-resistant double-armored submarine cable and preparation method thereof, it is related to submarine cable technical field.The corrosion-resistant double-armored submarine cable includes outer sheath layer, water barrier layer, double-armored layer, insulating inner liner, filling layer, insulating layer, copper conductor in turn from surface to inside;The outer sheath layer is obtained by extruding coating on the surface of double-armored layer by corrosion-resistant submarine cable material;The corrosion-resistant submarine cable material includes the following raw material components: by mass parts, 75-90 parts of high-density polyethylene, 30-50 parts of ultra-high molecular weight polyethylene, 10-25 parts of modified microfiber, 8-15 parts of ethylene-vinyl acetate copolymer, 0.2-0.5 parts of antioxidant, 1-1.2 parts of lubricant.The application optimizes sheath layer material, solves the problems of existing double-armored submarine cable corrosion failure, short service life, unstable performance and other problems, meets the demand of long-term service reliability.

This invention discloses a multi-strand synchronous stranding winding machine for soft copper conductors, relating to the technical field of conductor processing equipment. The machine includes a base, with a frame fixedly mounted on the top. Rotary shafts are rotatably mounted on both sides of the frame. A first guide frame, a second guide frame, and a mounting plate are fixedly mounted on the outer wall of the rotating shafts. A first servo motor is fixedly mounted on one outer wall of the frame. A first clamping assembly allows for quick clamping and fixing of the pay-off reel, making the clamping operation convenient and efficient. The pay-off and traction components can also adjust the clamping roller spacing via bolts to accommodate different specifications of soft copper conductors, offering strong versatility. Through the cooperation of the pay-off assembly, the second clamping assembly, the transmission structure, and the winding assembly, integrated synchronous operation of multi-strand soft copper conductors from pay-off, stranding, traction to winding is achieved. This not only improves the accuracy and quality of soft copper conductor processing but also optimizes the operation process and increases production efficiency.

The invention relates to a nickel-plated copper stranded conductor production process and equipment for a high-speed rail, and relates to the technical field of metal conductor machining, the nickel-plated copper stranded conductor production process comprises a base, an unwinding device, a dynamic stranding device and a winding device are installed on the base, and the dynamic stranding device comprises a support, a first gear and a second gear. The winding device comprises a motor, a second rotating rod, a first bevel gear, a second bevel gear and a winding drum. Through a linkage structure of the cleaning device and the dynamic twisting device, synchronous synergy of copper wire cleaning, tension control and uniform nickel plating is achieved, a copper wire can rotate by 360 degrees when penetrating through a nickel plating hole in real time, the binding force of a plating layer and a copper base body is improved, the problems that cleaning is not thorough and nickel plating is not uniform in a traditional technology are solved, and the production efficiency is improved. According to the utility model, the resistance to salt spray corrosion of the conductor is prolonged, the harsh standard of a high-speed rail is met, and accurate cooperation of twisting and winding and adaptation of conductors of multiple specifications are realized through traction sheave synchronous transmission and a self-adaptive positioning device.

This application relates to the field of cable manufacturing processes, and in particular to a manufacturing process and pretreatment equipment for low-loss millimeter-wave test cables. To address the problem of unstable dielectric constant and high high-frequency signal loss caused by interlayer gaps, the steps are as follows: First, conductor pretreatment, selecting silver-plated copper conductors, cleaning and drying them in pretreatment equipment; Second, PTFE insulation layer wrapping and heat setting, using PTFE film to wrap the pretreated silver-plated copper conductor in layers, followed by high-temperature heat setting in a heat setting furnace; Third, wrapping silver-plated copper flat strips around the PTFE insulation layer; Fourth, sequentially wrapping composite aluminum foil and PTFE film around the silver-plated copper flat strips to form a stabilizing layer; Fifth, preparation of the braided shielding layer. This application has the dual advantages of achieving high-frequency low loss and high structural stability, solving the problems of high high-frequency signal loss and poor structural stability in existing millimeter-wave test cables.

This disclosure provides a permanent magnet drive device and a liquid supply pump. The permanent magnet drive device includes: a housing assembly; an input assembly including an input housing portion, an input shaft, and a copper conductor portion, wherein the input housing portion is disposed in the housing assembly, the input shaft rotatably passes through the input housing portion, and the copper conductor portion is sleeved on the input shaft, the input housing portion, the input shaft, and the copper conductor portion forming a cooling channel, and the input housing portion having a liquid inlet communicating with the cooling channel; an output assembly including an output housing portion, an output shaft, and a permanent magnet portion, wherein the output housing portion is disposed in the housing assembly, the output shaft rotatably passes through the output housing portion, and the permanent magnet portion is sleeved on the output shaft, and the permanent magnet portion and the copper conductor portion are arranged opposite to each other, with an air gap formed between the copper conductor portion and the permanent magnet portion; and an adjustment assembly connected to the permanent magnet portion for driving the permanent magnet portion to move relative to the copper conductor portion to adjust the width of the air gap; wherein the input shaft is used to connect to a drive motor, and the output shaft is used to connect to the pump body.

This utility model relates to an optoelectronic composite cable, comprising a flame-retardant sheath, within which are arranged side-by-side optical units, copper conductors, a non-metallic reinforcing core, and high-strength yarn. The sheath has a circular structure and is made of low-smoke halogen-free flame-retardant polyolefin material. The optical unit includes G657A2 optical fiber and a tight-closing layer tightly wrapped around the optical fiber; the optical fiber operates at a temperature of -40℃ to 80℃. Two copper conductors are provided to provide power to the terminal equipment. The non-metallic reinforcing core enhances the bending resistance of the optoelectronic composite cable. The high-strength yarn enhances the tensile strength of the optoelectronic composite cable. This utility model's optoelectronic composite cable exhibits improved performance in tensile strength, bending resistance, and fire resistance, reducing the risk of signal interruption due to cable damage and lowering the cost of maintenance and replacement, thus improving the overall economic efficiency of the system. Its adaptability to various complex environments is significantly enhanced, ensuring the reliable operation of the communication system and better meeting the needs of modern communication network construction.

The utility model relates to the technical field of automobile wire and discloses high-soft high-strength copper-clad steel automobile wire for business car, include: conductor unit and insulating sheath, the insulating sheath is covered in the outside of conductor unit, the conductor unit includes inner stranding layer and outer stranding layer, the outer stranding layer concentric stranding constitutes with inner stranding layer, the outer stranding layer is stranding in the outside of inner stranding layer, the inner stranding layer is stranding constitutes by tensile metal wire, the outer stranding layer is stranding constitutes by conducting wire; The insulating sheath includes first insulating layer, metal braid, stress release ring and second insulating layer. The utility model discloses by setting up by tensile metal wire and conducting wire respectively stranding constitutes and concentric stranding's inner, outer stranding layer, guarantees conductivity and promotes tensile strength and flexibility, solves the problem that pure copper conductor wire is easy to break, reduces weight and improves efficiency, also overcomes the problem of aluminum conductor space occupation, and the outer layer insulating sheath structure realizes excellent insulation and mechanical protection, reduces the risk of breakage.

This utility model discloses a fire truck hose and cable layout structure, including a fire truck and a drone, with the drone mounted on the upper part of the fire truck. A fire-extinguishing water spray pipe is installed on the drone, connected to the fire truck's water pump via a hose. The drone is connected to a DC power supply on the chassis at the bottom of the fire truck via a cable, with the drone receiving DC power from the chassis power supply. Only one positive conductor is installed in the cable. The hose includes an outer layer, a negative conductor, and an inner lining layer, with the negative conductor positioned between the outer and inner lining layers and braided together with the outer layer. This utility model removes the negative conductor from the cable and integrates it into the hose structure, reducing the cable diameter and weight, effectively increasing the drone's lifting height under a 400kg load. The flowing medium inside the hose continuously carries away heat from the negative conductor, avoiding overheating risks. Simultaneously, the braided copper conductor and polyester layer enhance the hose's compressive strength.

This invention relates to the field of busbar technology and discloses a high-frequency busbar conductor structure and its manufacturing process for improving current carrying capacity. It solves the problem of poor heat dissipation in existing busbars that affects current carrying capacity. The structure includes a tubular busbar body, which comprises a combined insulating sleeve, a tubular copper conductor, an active air supply and heat dissipation mechanism, and an exhaust pipe. The combined insulating sleeve covers the outer surface of the tubular copper conductor. The active air supply and heat dissipation mechanism extends through one end of the bottom of the combined insulating sleeve and connects to the tubular copper conductor. The exhaust pipe extends through the other end of the bottom of the combined insulating sleeve and connects to the tubular copper conductor. The tubular copper conductor contains several auxiliary heat dissipation components, which consist of an aluminum nitride ceramic insulating heat-conducting sleeve, an aluminum heat dissipation sleeve, an aluminum central tube, several heat dissipation aluminum plates, and several heat dissipation fins. Through this busbar structure and manufacturing process, heat dissipation efficiency can be effectively improved, thereby increasing current carrying capacity.

The utility model discloses a three-core submarine cable capable of bearing high metal shielding short circuit current, comprising a wire core unit (1) and a sheath unit (2), the sheath unit (2) is used for wrapping and shaping the wire core unit (1), the wire core unit (1) comprises three electric signal core wires (1.1), the three electric signal core wires (1.1) are uniformly arranged in an array along the circumferential direction, the inner layer of each electric signal core wire (1.1) comprises a copper wire (1.1. 1), and the outer layer of each electric signal core wire (1.1) comprises a copper wire (1.1. 1). The outer layer of the electric signal core wire (1.1) comprises a metal shielding layer (1.1. 2), the metal shielding layer (1.1. 2) comprises a copper wire layer (1.1. 2.1) and a lead sheath layer (1.1. 2.2), and the lead sheath layer (1.1. 2.2) is arranged on the outer side of the copper wire layer (1.1. 2.1). The three-core submarine cable capable of bearing the high metal shielding short-circuit current combines the high conductivity of the copper wires and the metal shielding layer formed by the high strength of the lead sheath.

A non-destructive method for measuring the residual content of by-products in the insulation layer of high-voltage cables is disclosed. In this method, the high-voltage cable is placed in a degassing chamber. Under constant temperature, the high-voltage cable is cut, cleaned, and connected to test the current. The copper conductor of the high-voltage cable is connected to the high-voltage electrode. The outer shielding layer of the high-voltage cable is circumferentially stripped to form a spaced outer shielding layer, which is then connected to the shielding electrode and grounded. A copper strip on the outer shielding layer outside the spaced outer shielding layer is connected to the measuring electrode. The current in the high-voltage cable insulation layer is measured to obtain test results, including multiple sets of test currents, test times, test voltages, and test frequencies. Based on the test results, a three-exponential fitting is performed. Using the fitted continuous function and the corresponding test time and frequency, the polarization parameter values ​​in a fixed frequency band are obtained. These values ​​change as degassing progresses, and the polarization parameters at different stages are recorded. p and q are degassing factors. When p and q are less than 0.3, the by-product content is within the acceptable range.

This utility model belongs to the field of cables, specifically a wear-resistant graphene cable. Addressing the problem that existing cables have large contact areas with conduits, increasing cable wear and making conduit installation more difficult, the following solution is proposed: It includes multiple copper conductor bodies, each with an outer wall wrapped with a flame-retardant layer, all integrally formed within a filler layer. In this utility model, the rigid support of the graphene metal core copper conductor body and the aramid fiber braided layer, combined with the flexible buffering of rubber-foam cotton-epoxy resin, forms a dynamic stress balance mechanism. This ensures the cable's mechanical reliability while reducing environmental wear risks through surface smoothing. This structure and material also enable breakthroughs in wear resistance, impact resistance, conductivity stability, and environmental adaptability, allowing for wide application in harsh environments such as high wear and strong vibration.

The utility model relates to a kind of aluminium-plastic longitudinal package tinned copper flexible cable used underwater.The cable includes multiple insulated cores, the insulated core is composed of tinned soft copper conductor and the insulating layer arranged outside tinned soft copper conductor, the multiple insulated cores are wound into cable core with water-blocking tape, the multiple insulated cores are provided with filling between water-blocking tape, the cable core is longitudinally wrapped with aluminium-plastic composite tape, the aluminium-plastic composite tape is provided with armour layer outside, and the armour layer is extruded with outer sheath.The utility model has good flexibility and bending resistance, can adapt to complex and changeable wiring environment underwater, can stably transmit power in underwater environment, provides reliable power supply power connection for underwater equipment, is particularly important in the field of ocean engineering, underwater detection, submersible operation, etc., and ensures the normal operation of underwater equipment.

This utility model relates to the field of cable technology, and in particular to an environmentally friendly low-smoke halogen-free flame-retardant cable, comprising a cable body, which includes, from the inside out, a conductive core, a composite insulation layer, a shielding layer, a flame-retardant filling layer, and a sheath layer, all arranged in a coaxial nesting manner. The conductive core is formed by stranding multiple copper conductors and is tin-plated on the surface. The composite insulation layer is a three-layer composite structure, consisting of, from the inside out, a cross-linked polyethylene inner layer, a silane cross-linked polyolefin middle layer, and a low-smoke halogen-free flame-retardant polyolefin outer layer. The shielding layer is a double-layer shielding structure, including an aluminum-plastic composite tape wrapping layer and a tin-plated copper wire braided layer. The sheath layer is a double-layer co-extruded structure, including an inner sheath layer and an outer sheath layer arranged from the inside out. This utility model achieves comprehensive performance of low smoke and halogen-free, high flame retardancy, strong insulation, anti-interference, and aging resistance, and is safe, environmentally friendly, and reliable in use, meeting the stable operation requirements in complex environments such as high temperature and humidity.

The utility model relates to cable technical field, and disclose an easy bending type flat cable, including conductor layer, the outside fixed mounting of conductor layer has insulating buffer layer, the outside fixed mounting of insulating buffer layer has silver plated copper braid, the inside of insulating buffer layer evenly distributed has a plurality of micro air cavity, the outside fixed mounting of silver plated copper braid has aluminium -plastic composite tape. The easy bending type flat cable, the conductor layer adopts the silver plated copper conductor of multiple twisted formation conductor beam, cooperates the flexible isolation strip of silicone rubber material, both strengthen the flexibility of conductor itself, and provide sufficient space for the deformation when bending, avoid the conductor and break because of extrusion, the micro air cavity in insulating buffer layer and foamed polypropylene material can absorb stress through compression and spring back when bending, the decompression groove of outer sheath and silicone grease reduce the surface friction and tension when bending, and multiple structures cooperate to make the cable can bear high frequency bending and not easily damaged, greatly prolong the service life.

This utility model discloses an explosion-proof and flame-retardant liquid-cooled high-voltage automotive cable and its cable sheathing equipment. The cable includes a liquid-cooling pipe, a bare copper conductor, a wrapping layer, an explosion-proof tin-plated braided copper mesh, and a polyolefin insulation layer; the liquid-cooling pipe is located in the center of the cable. The cable sheathing equipment is a screw extruder, and the extrusion die is a double-layer die, including an inner die tube and an outer die tube. This utility model can effectively improve the cooling efficiency of the cable by setting up the liquid-cooling pipe, reducing the risk of fire caused by cable overload during the operation of electric vehicles, and improving the safety of electric vehicle operation. The cable sheathing equipment provided by this utility model, through the setting of the double-layer extrusion die, can effectively reduce the risk of compression deformation of the liquid-cooling pipe during the extrusion operation, ensuring the cooling efficiency of the cable.

The utility model provides a high temperature high pressure pulse cable for nuclear power station, include: single copper conductor and cross -linked polyimide insulating layer of extruding on copper conductor constitute insulating wire core, there is tinned copper wire double -layer weaving outside insulating wire core, adopt the outer sheath of cross -linked polyethylene material and extrude in weaving layer outside. The utility model in the conductor adopts single copper conductor to reduce the gap discharge under high pressure, because the conductor outer diameter is consistent, reduces the attenuation, guarantees the stability of signal transmission, the cross -linking technology adopts electron irradiation process in insulating layer, improves the temperature resistance grade, the radiation resistance of cable and the uniformity of cross -linked polyimide medium, reduces the loss of medium transmission, strengthens the electric strength, the weaving layer adopts the double shielding of double -layer copper wire weaving, can effectively shield the outside interference, guarantees the smooth transmission of signal, the outer sheath adopts cross -linked polyethylene sheath material, improves the heat resistance, the insulating property and corrosion resistance of cable.

The utility model relates to the field of electric wire provides a kind of soft electric wire based on reusable filling material. It aims to solve the problem of product appearance not neat caused by resource waste, unstable flame-retardant performance and cable structure deformation caused by non-recyclable filling material in traditional soft electric wire. The main scheme includes at least two cores, the core is composed of copper conductor (1) and polyvinyl chloride insulating layer (2) coated outside the copper conductor;A plurality of PVC filling strips (3) are filled in the gap between adjacent cores;Polyester tape wrapping layer (4) is coated on the outer periphery of the core and PVC filling strip (3), and the core and filling strip are fixed as a cable structure;Braided shielding layer (5) is coated on the outer periphery of the polyester tape wrapping layer (4);Polyvinyl chloride sheath layer (6) is coated on the outer periphery of the braided shielding layer (5).

The application discloses a kind of crosslinking polyolefin insulation low-smoke halogen-free flame-retardant fire-resistant cable, including the reinforcing core in center, the reinforcing core outer circumference is arranged with multiple copper conductors, the outside of copper conductor is covered with protective layer, the outside of all copper conductors is covered with insulating layer, shielding layer, heat insulation layer and outer sheath in turn, the gap between the inside of insulating layer and each copper conductor and the gap between reinforcing core and each copper conductor are provided with filling, multiple locating racks are arranged in the filling, each copper conductor is clamped in the fork-shaped piece arranged on locating rack, buffer assembly is arranged on locating rack.The application can strengthen the positioning of each conductor in the cable by setting locating rack, prevent each conductor from slipping or twisting, in addition, the setting of fork-shaped piece is convenient to cooperate with multiple conductors, and the production and assembly of cable will not become difficult, and the impact resistance of cable is strengthened by buffer assembly.

This invention provides a fire-resistant electric wire and a method for manufacturing the same that significantly improve fire resistance compared to conventional electric wires. [Solution] The fire-resistant electric wire includes a copper conductor 1201 and a double-fired mica tape 1203. The surface of the copper conductor is coated with a high-temperature resistant fire-resistant film 1202, which is composed of a two-component high-temperature resistant insulating ceramic paint. The double-fired mica tape is wound around the copper conductor coated with the high-temperature resistant fire-resistant film with a 50% overlap. The manufacturing method involves blending an organic silicone resin, a composite system of inorganic potassium silicate / lithium silicate, and special additives, curing the mixture, forming a ceramic protective layer, and then double-winding the double-fired mica tape with a 50% overlap, thereby improving the fire resistance of the electric wire from the conventional 750°C for 90 minutes to 950°C for 180 minutes.

The utility model belongs to cable field especially, it is a kind of graphene composite copper conductor anti-interference flame-retardant low-voltage power cable, to the lack of effective temperature monitoring means of current cable, cannot grasp the temperature change in the process of cable operation in real time, anti-interference ability is limited, the weight of traditional cable is larger, the problem of installation and handling difficulty, present and propose following scheme, including graphene composite copper conductor, its inside interval inserts graphene oxide fibre sensor;Crosslinking polyethylene insulating layer covered in the graphene composite copper conductor outside;Polyimide aluminium foil composite tape shielding layer covered in the outside of multiple conductors, in the utility model, thermal response hydrogel microcapsule breaks when contacting high-temperature fire source, releases ammonium polyphosphate flame retardant, and zinc oxide reacts to generate expansion carbon layer, effectively prevents fire spread, realizes flame-retardant self-repair function, graphene oxide fibre sensor interval inserts graphene composite copper conductor inside, can monitor cable temperature change in real time.

This invention relates to the field of wire and cable technology and discloses a method for preparing electroplated graphene copper conductors, comprising the following steps: copper substrate pretreatment, electroplating solution preparation, electroplating process, and post-treatment. This invention forms a composite structure of graphene and copper by electroplating graphene on the surface of a copper substrate. Graphene itself has excellent conductivity, and its unique two-dimensional structure can provide a good channel for electron transport, thereby effectively improving the conductivity of the copper conductor by 3%-5%.

The application discloses a kind of high wear-resistant flame-retardant photovoltaic cables, belong to photovoltaic cable technical field, including flexible torsion-resistant wire core, silicone rubber sheath layer, flame-retardant protective layer and wear-resistant layer, the flexible torsion-resistant wire core is composed of copper conductor and flexible carbon fiber support core, the outer wall of the flexible torsion-resistant wire core is fixedly covered with insulating isolation layer, waterproof and moisture-proof layer is fixed between the insulating isolation layer and silicone rubber sheath layer, the outer wall of the silicone rubber sheath layer is fixedly covered with flame-retardant protective layer, the flame-retardant protective layer is composed of intumescent graphite flame-retardant layer, glass fiber tape flame-retardant layer and ceramic silicon rubber fireproof layer, the flame-retardant protective layer and wear-resistant layer are fixedly covered with corrosion-resistant isolation layer, the outer wall of the wear-resistant layer is mounted with evenly distributed wear-resistant ribs and insecticide filling layer, the present application has the technical effects of flexible torsion-resistant, multi-layer active high-efficiency flame-retardant, high wear-resistant weather-resistant, waterproof and insect-proof.

This invention discloses a high-voltage integrated liquid-cooled transmission cable for new energy vehicles, belonging to the field of wires and cables. It includes a composite conductor core, an outer layer of high-temperature resistant modified XLPE insulation, multiple liquid-cooled microchannels symmetrically arranged outside the insulation layer, an inner shielding layer at the outer end of each microchannel, a buffer damping layer outside the inner shielding layer, an outer shielding layer outside the buffer damping layer, and an outer sheath outside the outer shielding layer. The composite conductor core uses a mixture of multi-strand ultra-fine tin-plated copper strands and high-strength aluminum-magnesium alloy wire. While ensuring a conductivity ≥95% IACS, the weight is reduced by 25%~30% compared to pure copper conductors, and flexibility is significantly improved. It can achieve stable transmission of 800V high voltage and 500A high current, efficient liquid cooling, strong electromagnetic shielding, high flexibility and lightweight, wide temperature range weather resistance, and ultra-long service life, comprehensively solving the problems of excessive temperature rise, severe interference, insufficient flexibility, short lifespan, and poor safety of traditional cables.