773results about "Flat/ribbon cables" patented technology

A magnetic data cable is disclosed, including cable body and a data interface connected to both ends of the cable body. The cable body includes a cored wire group and an external protective layer wrapped outside of the cored wire group, a flexible magnetic strip is provided in the outer protective layer, and the flexible magnetic strip is located alongside of the cored wire group and extends parallel to the cored wire group. It is convenient to adjust diameter of the coil after the data cable has been coiled so as to facilitate storing of the data cable, and it is easy to operate.

A twin-axial cable including a first conductor; a first dielectric material surrounding the first conductor; a second conductor; a second dielectric material surrounding the second conductor; a first wedge; a second wedge positioned opposite to the first wedge; and a conductive shield surrounding the first conductor, the first dielectric material, the second conductor, the second dielectric material, the first wedge, and the second wedge, wherein at least a portion of the first wedge is positioned between the first dielectric material and the second dielectric material at a first region of the twin-axial cable, wherein at least a portion of the second wedge is positioned between the first dielectric material and the second dielectric material at a second region of the twin-axial cable opposite to the first region of the twin-axial cable.

The invention discloses a flame-retardant flat flexible high-current cable and a preparation method thereof, and relates to the technical field of cables. The cable comprises a flat conductor, an insulating layer, a shielding layer, a reinforcing layer and a sheath layer, the insulating layer contains 85-90 parts of low-density polyethylene, 1.2-1.5 parts of dicumyl peroxide, 12-15 parts of modified aluminum hydroxide and the like; and the sheath layer contains 42-50 parts of modified chlorinated polyethylene, 28-34 parts of modified aluminum hydroxide and the like. The modified chlorinated polyethylene is prepared through a three-step extrusion reaction, and the modified aluminum hydroxide is subjected to coupling agent treatment, coating modification and carbon nanotube composite modification. The flame-retardant flat flexible large-current cable has prominent advantages, an efficient flame-retardant system is constructed by modified aluminum hydroxide and antimony trioxide, and the V-0 level requirement of UL94 can be met; the flat structure is combined with the modified chlorinated polyethylene, so that the flexibility is excellent and the temperature-resistant range is wide. The design of the insulating layer and the shielding layer ensures excellent electrical performance, segmented temperature control and accurate parameter regulation and control are performed in preparation, stable product quality is ensured, and the device can adapt to a large-current application scene.

The invention belongs to the technical field of electromagnetic wire materials and manufacturing, and particularly relates to a copper-aluminum composite special-shaped enameled wire and a preparation method thereof.The enameled wire comprises a copper-clad aluminum composite conductor and an insulating paint layer coated on the outer surface of the copper-clad aluminum composite conductor; the composite conductor is composed of a copper layer and an aluminum core, and the volume ratio of the copper layer to the aluminum core is 60%: 40%-70%: 30%. The thickness of the composite conductor is 0.5-2.0 mm, the width of the composite conductor is 2.0-10.0 mm, and the width-to-thickness ratio of the composite conductor is 2-8; the eccentricity of the copper layer is less than or equal to 2.5. The enameled wire has high conductivity, light weight and high reliability, and is especially suitable for high-frequency power electronic devices such as new energy automobile motors, high-frequency transformers and photovoltaic inverters, and application scenarios with high requirements for space utilization rate, heat dissipation performance and long-term stability such as spaceflight and deep sea equipment in extreme environments.

The utility model provides a biaxial stretching automatic storage magnetic suction flat wire which comprises a wire rod filled with a magnetic suction material layer and a first connector and a second connector arranged at the two ends of the wire rod, the wire rod comprises a first section and a second section which are sequentially connected, the first section and the second section are folded, the first connector is arranged at the end of the first section, and the second connector is arranged at the end of the second section. The second connector is arranged at the end of the second section, and when the first section and the second section are wound together, the first connector and the second connector are located on the two circles of the outermost layer or both located on the outermost circle. According to the two-way stretching automatic storage magnetic absorption flat wire, the first section and the second section are folded and then wound together, so that the first connector and the second connector are located on the two circles of the outermost layer respectively or located on the outermost layer respectively; the problem that when one connecting end of an existing two-way stretching automatic storage magnetic suction flat wire is wound to an inner ring and pulled away, the wire is disordered is solved, and the problem that the inner layer of a coil forms a three-dimensional shape due to the fact that the wire is wound into the coil arranged in a stacked mode, and adsorption is difficult is also solved.

The invention discloses an easy-to-bend copper bar cable which comprises a flat copper bar conductor with the section thickness of 2.95 mm to 3.05 mm, the section width of 15.90 mm to 16.10 mm and the sectional area of 48 mm < 2 >, and an insulating layer which is made of a nylon material and wraps the copper bar conductor, the average thickness of the insulating layer is 0.55 mm to 0.65 mm, the minimum local thickness of the insulating layer is larger than or equal to 0.48 mm, the height of the outer contour of the insulating layer is 4.2 mm, and the thickness of the outer contour of the insulating layer is 4.2 mm. The width of the insulating layer is 17.2 mm, and the surface roughness Ra of the insulating layer is less than or equal to 0.8 [mu] m. The electric connector has the characteristics of temperature resistance, aging resistance and chemical corrosion resistance, supports customized designs such as end stamping and tin plating, is convenient to mount, reduces the occupied space by 30%, and remarkably improves the reliability and durability of electrical connection and the system integration efficiency.

The invention relates to the technical field of busbars, and discloses a multi-layer composite fire-resistant shielding busbar and a preparation method thereof, and the multi-layer composite fire-resistant shielding busbar comprises a conductor layer, a fire-resistant layer, a shielding layer and a sheath layer which are sequentially coated from inside to outside; wherein the conductor layer is made of copper or aluminum; the fireproof layer wraps the conductor layer and is formed by wrapping a double-layer PI three-in-one synthetic mica tape. According to the multi-layer composite fire-resistant shielding busbar and the preparation method thereof, the double-layer PI three-in-one synthetic mica tape is used for wrapping, a stable fire-resistant insulation structure is formed outside the conductor layer in a reverse wrapping mode that the first layer is clockwise and the second layer is anticlockwise, and the mica tape is formed by combining phlogopite paper and an organic silicon resin adhesive capable of resisting the temperature of 300 DEG C; the structural integrity can be maintained under the fire high-temperature condition, and electrical short circuit caused by thermal failure is effectively prevented; and meanwhile, the mica tape adhesive layer permeates into the micro-groove structure arranged on the surface of the conductor in the thermocuring process, so that the mechanical occlusion strength is further enhanced.

A flexible circuit base board and a flexible flat cable are provided. The flexible flat cable includes the flexible circuit base board and a transmission element. The flexible circuit base board includes a base film, multiple conductive wires, a transmission signal pad, a conductive structure, a collecting signal pad and a cover film. The conductive wires are spaced and placed on the base film. The transmission signal pad and the collecting signal pad are electrically connected to and are disposed on the base film. The conductive structure is disposed on the base film, and is electrically connected to at least one of the conductive wires and the transmission signal pad. The cover film is disposed on the base film, and covers the conductive wires, the conductive structure, the transmission signal pad, and the collecting signal pad. The transmission element is electrically connected to the collecting signal pad.

The utility model discloses an elevator accompanying flat cable which comprises a flat outer protection layer used for wrapping components horizontally placed in the elevator accompanying flat cable. The control unit comprises control wire groups which are horizontally arranged on the left side and the right side of the interior of the flat outer protection layer in parallel and are symmetrical, and each control wire group comprises a central elastic filling strip and insulating wire cores which surround the periphery of the filling strip and are arranged in a twisted mode; the communication unit comprises symmetrical communication wire groups which are horizontally arranged in the middle of the flat outer protection layer in parallel, each communication wire group comprises two video wires, a communication optical cable, a drainage wire, a shielding layer and an inner protection layer, the video wires, the communication optical cables and the drainage wires which are twisted are wrapped by the shielding layers, and the inner protection layers are extruded on the outer surfaces of the shielding layers; the steel wire ropes are symmetrically arranged on two sides of the communication unit. The communication line group is simple in structure and easy to produce and manufacture, improves the anti-interference capability of the communication line group, reduces signal distortion, and improves the bending resistance and fracture resistance of the traveling cable.

A power harness includes a cable having a ring insert received in an opening electrically connected to the cable body and having a cable seal sealed to the flat cable. The power harness includes a housing having a chamber with a cable slot and a bore passing through a hub. The power harness includes a threaded bolt received in the hub passing through the ring insert to threadably couple to a mating harness. The threaded bolt includes an insulating cover on the head and an insulating cap extending from the threaded shaft. The threaded bolt includes a bolt seal sealed to the housing. The power harness includes a contact ring received in the hub aligned with the ring insert with an opening that receives the threaded bolt. A first end engages and is electrically connected to the ring insert and a second end is electrically connected to the mating harness.

A differential signal transmission cable includes: an insulating layer that extends along a longitudinal direction of the differential signal transmission cable; a pair of signal lines that extends along the longitudinal direction of the differential signal transmission cable and is buried in the insulating layer; and a shield that exists around an outer peripheral surface of the insulating layer.

The invention discloses a high-speed cable and a high-speed cable assembly, and relates to the technical field of cables, the high-speed cable comprises two signal lines arranged side by side along a first direction, the outer walls of the two signal lines are sequentially coated with a foamed polytetrafluoroethylene layer, an aluminum foil layer and a plastic layer, and two flat ground wires are arranged between the aluminum foil layer and the plastic layer. The two flat ground wires are distributed in a layered mode in the second direction, and the flat ground wires abut against the aluminum foil layer or are bonded with the aluminum foil layer through a conductive adhesive; wherein the first direction is perpendicular to the second direction, the heights of the two signal lines in the second direction are located between the heights of the two flat ground wires in the second direction, the projection length of the two signal lines in the first direction is larger than the projection length of the flat ground wires in the first direction, and the two ends of the plastic layer in the second direction are arranged in a plane mode. According to the invention, the technical problem of poor grounding contact of the high-speed cable is solved.

The invention relates to a power transmission flexible bus which has three waterproof layers from inside to outside through the arrangement of a metal protection layer, a first waterproof layer and a second waterproof layer, ensures the electrical insulation, and also has the waterproof effect through the arrangement of a mechanical protection layer. Stable and reliable protection is formed on the surface of a product, which is directly exposed to seawater, and the mechanical strength is improved; therefore, the waterproof and compressive properties of the product in the deep sea environment are remarkably improved, the use safety of the product is effectively improved, and the service life of the product is effectively prolonged. Meanwhile, through the arrangement of the first lining layer and the second lining layer, stable and reliable supporting and buffering are formed for the metal protection layer and the mechanical protection layer, the metal protection layer is prevented from damaging the insulating layer, the mechanical protection layer is also prevented from damaging the second waterproof layer and the metal protection layer, and the durability of each layer of the product is further ensured; mutual damage between different layers is avoided, and the function integrity of the function of each layer in the preset use period is guaranteed.

The present invention belongs to the technical field of enameled copper flat wires, and relates to a direct-weldable polyurethane enameled copper flat wire and a preparation process therefor. In the present invention, by means of adding a rare-earth element, halloysite nanotubes, silicon carbide and graphene, a polyurethane paint in an intermediate layer is modified, and the performance of the polyurethane paint in the intermediate layer is thus effectively improved. By means of adding the rare-earth element, grains of the polyurethane paint can be refined, such that the polyurethane paint can be better coated on a copper flat wire; adding the halloysite nanotubes enables a polymer to form a network structure, such that the polyurethane paint has better mechanical strength; and adding silicon carbide and graphene further improves the mechanical strength of the polyurethane paint, also enhances the barrier properties of the polyurethane paint, and reduces the permeation of external substances, such as moisture and oxygen, to the polyurethane paint, thereby contributing to improving the oxidation resistance of the polyurethane paint.

A shielded flat cable includes a plurality of conductors arranged in parallel and including a ground line, an insulator including a first insulator disposed on an upper surface of the plurality of conductors and a second insulator disposed on a lower surface of the plurality of conductors, a metal foil disposed above the first insulator and electrically connected to the ground line, and a shield layer electrically connected to the metal foil and disposed so as to surround outer peripheries of the insulator and the metal foil.

Systems and methods for authentication may include balancing an unbalanced power cable using a transformer that has one or more phases by selecting a voltage on a tap handle; disposing a first bushing on one or more phases at a different voltage than the selected voltage; and balancing the unbalanced power cable based on the disposition of the first bushing on the one or more phases at the different voltage.

The utility model provides an audio and video electric power distribution comprehensive cotton covered wire for radio and television, which comprises an outer sheath, a cross-linked silicone rubber sheath is sleeved in the outer sheath, and an air cooling pipe, an audio wire harness, a video wire core and an electric power distribution wire core are wrapped in the cross-linked silicone rubber sheath. The audio and video power distribution integrated cotton covered wire for radio and television is applied to digital communication of civil radio and television, aerospace, offshore platforms and warships and modern information communication of data link operation, and can provide a working power supply for electrical equipment while transmitting audio signals and video signals. And reliable communication can be provided for users of high-flow high-definition high-frequency band special equipment in an extreme temperature environment.

The invention relates to electric devices by which electrical signals are transmitted, such as e.g. a ribbon cable, an integrated semiconductor component, an electrical circuit arrangement or another electrical cable.

The utility model discloses a flexible flat cable (FFC) with an external signal shielding structure, and relates to the technical field of FFCs. The FFC flat cable comprises an FFC flat cable body, and a first shielding layer is pasted on the outer side of the FFC flat cable body. A second shielding layer is adhered to the outer side of the first shielding layer; a first dismounting strip is pasted and fixed between the interface of the first shielding layer and the FFC body; a second dismounting strip is pasted and fixed on one side, far away from the FFC body, of the interface of the second shielding layer; pulling strips are fixed at two ends of the first dismantling strip and the second dismantling strip; velcro sub-surfaces are fixed to one sides of the pulling strips fixed to the two ends of the first dismounting strip. According to the utility model, the first shielding layer and the second shielding layer on the outer side of the FFC body can be quickly removed through the action of the first removal strip and the second removal strip, and the shielding of the outer layer does not need to be cut by an edge tool, so that the condition that the FFC body is damaged by the edge tool when the first shielding layer and the second shielding layer are removed is prevented.

AC electric machines have capacitive windings or connections, represented in circuit diagrams by capacitors, such as wire wound into electromagnetic coils, capacitively coupled and separated by a dielectric, which replace traditional coils in machines such as motors, generators, transformers, coils, and antennas.

An electromagnetically shielded data transmission cable, comprising: a first insulating base film and a second insulating base film which are stacked. A plurality of signal transmission metal lines are arranged at intervals between the first insulating base film and the second insulating base film; metal wires are provided on the two sides of each signal transmission metal line in parallel in a spaced manner; a first shielding layer is provided on the surface of the side of the first insulating base film facing away from the signal transmission metal lines and the metal wires; a second shielding layer is provided on the surface of the side of the second insulating base film facing away from the signal transmission metal lines and the metal wires; a first insulating film is provided between the first insulating base film and the first shielding layer; a second insulating film is provided between the second insulating base film and the second shielding layer. The electromagnetically shielded data transmission cable reduces signal attenuation, achieves stable signal transmission, reduces the overall bending radius, relaxes requirements for the installation space, and improving operation convenience for personnel.

The invention discloses a preparation method of a paper-insulated enameled copper flat wire, which relates to the technical field of paper-insulated conductors, and comprises the following steps: preparing a copper flat wire from a copper conductor; coating the insulating paint on the copper flat wire, and baking and curing to obtain an enameled copper flat wire; the enameled copper flat wire is wrapped by two gap wrapping layers to form a composite wire A. The gap wrapping layers are formed by spiral winding and gap wrapping of insulation paper in the length direction of the enameled copper flat wire. And taking one composite wire A or a plurality of composite wires as a composite wire B, and spirally winding, overlapping and coating the composite wire A or the composite wire B to form a self-locking wrapping layer. According to the invention, a composite wrapping mode of inner-layer gap wrapping (two layers) and outer-layer self-locking wrapping is adopted, and the spiral winding design of the insulation paper is combined, so that the paper layers are ensured to be tightly attached under bending or mechanical stress, looseness and gaps are avoided, and the mechanical stability and the electric insulation reliability of the insulation layer are remarkably improved.

The utility model provides a kind of flat cable overcoming the length difference of inside and outside diameter, include: line body and protection piece, line body includes two flat cable, at least one flat cable is equipped with pre-bending part, pre-bending part protrudes in the plane of flat cable, protection piece is sleeved in a part of two flat cable and contains pre-bending part, protection piece has opening, to allow pre-bending part to pass through opening after stretching.The flat cable overcoming the length difference of inside and outside diameter of the utility model can make the flat cable of bending no longer due to the mismatch of inside and outside diameter length and the problem of excessive flexure of outer ring, excessive compression deformation of inner ring.

The utility model relates to the technical field of motor leads, and discloses a lead for a propulsion motor, which comprises an outer protective sleeve, a plurality of lead wires, a plurality of lead wires, a plurality of lead wires and a plurality of lead wires, and is characterized in that the top and bottom of the outer protective sleeve are provided with grooves; and the heat dissipation positioning mechanism is arranged on the outer protective sleeve, and the heat dissipation positioning mechanism is used for supporting and positioning the outer protective sleeve with a heat dissipation effect. According to the utility model, the shape of the outer protective sleeve is set to be flat, and the groove is designed at the interval of the two conductors on the outer protective sleeve, so that the surface area of the structure can be increased, the contact area between the structure and heat dissipation media such as external air is increased, and the conductors in the outer protective sleeve can be quickly cooled; the problem that damage is easily caused by poor heat dissipation capability of a common wire is avoided, the service life of the structure is prolonged, the stability of the pushing motor during working is guaranteed, and the heat dissipation performance and the mechanical strength of the conductor are improved through the design that the conductor is the wire core formed by twisting seven copper wires together.

The utility model discloses an easy-to-tear light control double-parallel wire and a production mould, the easy-to-tear light control double-parallel wire comprises two groups of conductors arranged symmetrically and an insulating layer wrapping the conductors, the cross section of the double-parallel wire is in the shape of an oblate with a plurality of notches at the center, a connecting part is formed at the joint of the notches, the notches are arranged along the axial direction of the insulating layer, and the insulating layer is arranged in the middle of the double-parallel wire. And the conductor is arranged on one side far away from the connecting part. The tearing force of the easy-to-tear light control double-parallel wire with the same conductor specification is smaller than that of a traditional round double-parallel wire by 35%, and the easy-to-tear light control double-parallel wire is easier to tear. After the easy-to-tear light control double parallel wire is used, the condition that the copper wire is exposed due to breakage of the insulating layer does not occur any more, and the concentricity of the torn insulating layer can be kept above 90%.

The application relates to the technical field of new energy, in particular to a flexible flat cable, a CCS assembly and a battery module. The flexible flat cable comprises a first surface and a second surface oppositely arranged in a thickness direction, a plurality of slits penetrating from the first surface to the second surface, a length edge extending along a length direction, and the slits defining signal leads; a conductor extending along the length direction; a support body made of insulating material, extending along the length direction and being separated from the conductor; an insulating film covering the conductor and the support body; and a through hole penetrating from the first surface to the second surface at the support body and avoiding the conductor.

The invention discloses a high-adhesiveness film sintered aluminum flat wire and a preparation process thereof, a first coating contains plastic metal filler, a second coating contains high-modulus fibers, the high-modulus fibers in the second layer and the plastic metal filler in the first layer form a mechanical interlocking structure, and the metal filler and an aluminum matrix form physical metallurgical bonding. The fiber network in the second layer rapidly disperses local concentrated stress to a larger area by means of the high elastic modulus of the fiber network, and when the stress peak value which is not completely eliminated is transmitted to the first layer, the plastic metal filler can generate irreversible plastic deformation; the bonding strength between the thin film layers and between the thin film layers and the aluminum matrix is enhanced through a mechanical interlocking structure and physical metallurgical bonding, mechanical energy is converted into deformation work consumption, stress is prevented from being accumulated at an interface, and therefore the anti-fatigue and anti-impact performance of the coating is remarkably improved.

The utility model discloses a flexible flat cable. The flexible flat cable comprises an integrally-formed cable core and an outer sheath layer arranged outside the cable core, the cable core comprises a plurality of integrally-formed conductors and an inner coating layer wrapping the plurality of conductors, and the plurality of conductors are arranged at intervals. Through the above mode, the flexible flat cable provided by the utility model is soft, light and thin, is easy to bend, and is convenient to install and use.