204 results about "Multicore cable" patented technology

The invention discloses an insulating layer quality optimization method, system and equipment in high-density winding of a multi-core cable, and relates to the technical field of cables, and the method comprises the steps: obtaining the production demands of the multi-core cable, and determining a multi-core arrangement guide factor; carrying out winding structure design on the plurality of insulated core wires, and determining a multi-core winding structure layout; a control decision is made for the multi-core synchronous winding device, and a synchronous winding control first space is obtained; performing insulation layer quality loss inspection on the synchronous winding control first space to obtain a synchronous winding control second space; and performing multi-level joint optimization on the synchronous winding control second space to obtain a synchronous winding control strategy, and controlling the multi-core synchronous winding device to perform self-adaptive winding on the plurality of insulated core wires. The technical problems that in the high-density winding process of a multi-core cable in the prior art, an insulating layer is prone to damage, and winding control lacks an adaptive adjusting mechanism are solved, and the technical effects of improving the winding quality of the insulating layer and achieving adaptive control over the winding process are achieved.

A distributed composite geotechnical sensor disclosed by the present invention comprises a multi-core cable, an optical fiber sensing member, at least two composite sensing members and a plurality of connectors, the multi-core cable is used for transmitting charge signals, and the optical fiber sensing member and the multi-core cable are arranged in parallel and at an interval and are used for monitoring temperature and stress. The at least two composite sensing pieces are sequentially arranged at intervals along the length direction of the optical fiber sensing piece, are arranged in the same core with the optical fiber sensing piece and are used for monitoring dynamic stress waves or vibration, and the plurality of connecting bodies are respectively arranged at two ends of the composite sensing pieces and are connected with the multi-core cable, the optical fiber sensing piece and the composite sensing pieces. The electric connector is used for electrically connecting the multi-core cable with the composite sensing piece. According to the invention, the problems of relatively single monitoring index and incapability of positioning due to the fact that a traditional piezoelectric geotechnical cable can only monitor external disturbance information and cannot realize distributed monitoring can be effectively solved.

The utility model discloses a novel environment-friendly safety type multi-core fireproof cable, which comprises three groups of wire cores, each wire core consists of a copper core and a first insulating layer, the wire cores are mutually twisted, a second insulating layer is sleeved outside each of the three groups of wire cores, a shielding layer is arranged outside each second insulating layer, and the shielding layers are arranged outside the copper cores and the first insulating layers. The outer portion of the shielding layer is sleeved with an inner protection sleeve, the outer portion of the inner protection sleeve is sleeved with an outer protection sleeve, and the structure solves the problems that a multi-core cable is prone to being ignited when encountering a fire, and a certain gap exists between cable cores of the multi-core cable.

The utility model discloses a special connecting device for a grounding electrode of a high-density electrical method tester, which relates to the technical field of grounding devices and comprises a wire body assembly, the wire body assembly comprises a multi-core cable and a grounding rod, the outer side of the wire body assembly is fixedly connected with an installation assembly, and the top end of the wire body assembly is slidably connected with a line protection assembly. The wire body assembly is internally provided with a water seepage assembly, the installation assembly comprises an elastic sheet, the interior of the elastic sheet is fixedly connected to the outer side of the grounding rod, and the outer side of the elastic sheet is fixedly connected with a buckle. According to the utility model, the connection between the grounding rod and the mounting seat is still stable, the occurrence of a loosening condition can be effectively prevented, the anti-pulling capability of the cable is effectively increased, the service life of the connecting wire is prolonged, the grounding rod is ensured to maintain good electric contact under a dry condition, and the test accuracy is effectively improved.

The invention provides a small-diameter coaxial cable and a multi-core cable, which can suppress deterioration of appearance and electrical characteristics caused by shape deformation of an inner conductor. The small-diameter coaxial cable (1) is provided with an inner conductor (2) formed by twisting four metal wires (21), an insulator (3) covering the periphery of the inner conductor (2), a shielding layer (4) covering the periphery of the insulator (3), and an outer sleeve layer (5) covering the periphery of the shielding layer (4), and when the twisting pitch of the inner conductor (2) is set as P and the layer core diameter of the inner conductor (2) is set as Pd, P / Pd is less than 25.

The invention discloses an intelligent crane control method and system based on digitization, and belongs to the technical field of intelligent crane control, and the method comprises the steps: employing an AS5600 magnetic encoder to accurately recognize the angle change of an operation handle, improving the data transmission rate and the anti-interference capability through a CAN bus communication protocol, and combining a non-contact magnetic induction technology to reduce the energy consumption. Troubleshooting and maintenance are simplified through modular design, and the standby power consumption of the system is reduced through combination of a non-contact magnetic induction technology and a low-power-consumption circuit design; the control system is divided into independent functional units through the modular design, and the cable consumption is reduced through standardized interfaces; the CAN bus replaces a multi-core cable and is integrated with a photoelectric isolation and self-checking mechanism, so that the wiring complexity is reduced; the modular design supports rapid fault positioning and plug-and-play maintenance, and the labor cost is reduced; and through module unique ID tracing and a triple detection mechanism, the product quality consistency is ensured, a closed-loop optimization production process is formed, and the comprehensive operation cost is further reduced.

The invention relates to the field of cable processing, and particularly discloses a multi-core cable winding production machine which comprises a processing box and a mounting plate, a through groove is formed in the processing box in a penetrating mode, and a wrapping mechanism is arranged on the mounting plate; the processing mechanism comprises a limiting ring arranged on the inner wall of the through groove, the inner wall of the limiting ring is fixedly connected with a processing cylinder allowing a stranded cable to pass through, the processing cylinder is internally provided with a first annular cavity, an air pump is installed on the rear side of the processing box, and the air outlet end of the air pump communicates with the first annular cavity; the outer side of the processing cylinder is fixedly connected with a rotatable rotating ring, and the side, close to the cable inlet side, of the rotating ring is fixedly connected with a sealing plate. The production machine is used for removing the talcum powder after the multi-core cable is twisted, and when the talcum powder is removed, the talcum powder in the gaps of the twisted cable can be removed in a targeted manner, the talcum powder cannot be removed from the whole surface of the twisted cable, and the subsequent wrapping operation is not influenced on the basis of ensuring the removing effect.

A processing apparatus 200 for a multicore cable 1 processes the multicore cable 1 including a sheath 2 and cores 3 and 4 inserted in the sheath 2, and includes: a slitter 21 that makes a slit along a circumferential direction; a puller 22 that moves at least one of a distal portion of the sheath 2 and a proximal portion of the sheath 2 in a longitudinal direction of the multicore cable 1 to thereby expose the core wires 3 and 4, the distal portion being closer to a distal end of the multicore cable 1 than the slit, the proximal portion being closer to a proximal end of the multicore cable 1 than the slit; a detector 31 that detects a position of a specific core 3 of the cores 3 and 4 in a circumferential direction of the multicore cable 1; and a rotator 32a that rotates the multicore cable 1 based on the detected position of the specific core 3 in the circumferential direction to thereby move the specific core 3 to a predetermined position in the circumferential direction.

The invention discloses a mine electrical method integrated exploration system based on matrix electrodes and a use method, and belongs to the technical field of mine water disaster prevention and control, the system comprises a multi-core cable, matrix electrodes, an on-site host and the like, the host integrates an intelligent data analysis module, a data visualization module and the like, and the electrodes are arranged in a double-row matrix mode. When in use, exploration is completed through the steps of system deployment and self-inspection, parameter configuration, multi-frequency data acquisition, real-time analysis and anomaly recognition and remote collaboration and decision support. The system has the beneficial effects that an intelligent algorithm is built in the field host to realize data real-time preprocessing and low-resistance abnormity identification, so that the processing speed is improved, and minute-level response of the water disaster risk is realized; the data visualization module converts the data into a three-dimensional model, and the geological condition is visually presented; and the automatic control module automatically adjusts pole distribution parameters, remote fault diagnosis is realized by combining a remote monitoring function, and the reliability and the safety of the system are improved.

An elevator system has an elevator controller system to control movement of an elevator car between a predetermined number of floors of a building, and an elevator operating panel communicatively coupled via a multicore cable to the elevator controller system. The elevator operating panel includes at least one push-button having an open state and a closed state, wherein the push-button is configured to close in the closed state a wire loop of the multicore cable, and wherein the push-button is configured to be in the closed state when a user presses the push-button to enter an elevator call. In addition, the elevator system includes an ancillary operating panel arranged next to the elevator operating panel and having a proximity sensor for touchless entry of an elevator call.

A contact insert for an industrial electrical connector is provided. The contact insert has a connection side for the connection of individual conductors of a multi-core cable and a contact side for electrical connection to a mating electrical connector or to a socket. The contact insert includes a bridging element, which has a connection region associated with the connection side, for electrical connection to a conductor of the multi-core cable, and at least two contact regions associated with the contact side, for each electrically contacting a mating contact element of a mating electrical connector or of a socket.

This utility model relates to a processing and cutting device for multi-core cables, comprising a housing and a fixed frame installed inside the rear side of the housing. A spring is connected inside the fixed frame, and a slider is connected to the bottom of the spring. The slider is slidably connected to the fixed frame, and a connecting rod is rotatably connected to the bottom of the slider. A rotating plate is rotatably connected to the end of the connecting rod away from the slider. Limiting rods are connected to the left and right sides inside the housing. A trapezoidal plate is connected to the bottom of the rotating plate, and connecting cylinders are connected to the left and right sides of the bottom of the trapezoidal plate. This utility model achieves channel switching between two collection frames by precisely coordinating the trapezoidal plate, connecting cylinders, ball bearings, a turntable, protrusions, and limiting rods. When one collection frame is nearly full, the device automatically guides the waste material to the other side, ensuring smooth and uninterrupted switching. This avoids waste spillage and downtime losses during frame changes, making waste collection efficient and continuous, reducing labor costs, ensuring continuous and stable operation of the multi-core cable processing and cutting process, and improving production rhythm and operational standardization.

The invention discloses an AI self-inspection electricity supplementing system and method of an energy storage system. The system comprises an AI self-inspection electricity supplementing instrument, a distribution box, a high-voltage box and a battery pack module. Wherein the AI self-inspection electricity supplementing instrument is connected with the distribution box through a multi-core cable; the distribution box is used for installing a control module of the BMS system, the high-voltage box comprises a plurality of main control modules of the BMS system, and communication lines of the plurality of main control modules are connected in parallel and make-up lines are connected in parallel and then connected into the distribution box; the battery pack module comprises a plurality of battery clusters, electricity supplementing channels of all battery packs in each battery cluster are connected in parallel and then are connected to the corresponding main control module, and the AI self-inspection electricity supplementing instrument is used for analyzing battery cell data, determining an abnormal battery cell, controlling a switching circuit corresponding to the abnormal battery cell to be switched on, and switching on an electricity supplementing loop to supplement electricity to the abnormal battery cell. According to the system, the electricity supplementing current can be remarkably increased, the energy balance efficiency is improved, the electricity supplementing cost is reduced, and the accuracy, convenience and pertinence of electricity supplementing of the energy storage system are improved.

The invention relates to the technical field of oil and gas well oil testing and production testing, in particular to an oil-producing horizontal well fluid production profile and underground television integrated testing system which comprises the following steps that firstly, sand, scraps and crude oil in a shaft are cleaned, clear water is injected into the shaft, and then the well is closed; 2, testing pipe columns are installed together, wherein each testing pipe column comprises a multi-core cable, a coiled tubing, an array probe output profile logging instrument, a centralizer, a check valve, a light source and an underground television terminal, and the coiled tubing, the array probe output profile logging instrument, the centralizer, the check valve, the light source and the underground television terminal are sequentially connected together from top to bottom. The testing tubular column can complete two kinds of testing work after entering a well once, the precision of an interpretation result is improved, and the problems that the construction period is long and the cost is high when oil-producing horizontal well liquid production profile monitoring and underground television terminal hole monitoring are conducted after fracturing are conducted respectively are solved; according to the opening condition of each perforation cluster and fluid production profile data monitored by the underground television terminal, the reservoir and fracturing effect is comprehensively analyzed, and a basis is provided for reservoir and fracturing effect evaluation and fracturing scheme optimization.

The application discloses a multi-core cable plug-in core connector based on a smart grid, relates to the technical field of plug-in core connectors, and comprises a connector socket and a connector plug, further comprises: a needle seat and a plug-in needle, which are respectively arranged in the connector socket and the connector plug; a plug-in mechanism arranged at the end of the needle seat is used for switching different conductive contact surfaces by one-way rotation when the needle seat and the plug-in needle are plugged in each time; plug-in columns are respectively fixed on the end faces of the plug-in needle, and the end of the plug-in column close to the needle seat is provided with a conical surface structure; the plug-in mechanism comprises movable columns arranged at the end of the needle seat at equal angles, and the end of the movable column is provided with an inclined curved surface structure matched with the conical surface of the plug-in column; when the plug-in mechanism is plugged in, if poor contact occurs, the different horizontal curved surfaces of the conductive column can be switched to contact and conduct electricity with the plug-in column.

The invention discloses a filler supplementing device and method for multi-core cable stranding, and the device comprises a mounting ring which is provided with a feeding end and a discharging end; when the cable core is inserted, the supplementing pipe overcomes the elastic force of the spring to move outwards under the action of radial thrust, the through hole is opened to enable filler to flow out, and after the cable core leaves, the spring pushes the supplementing pipe to reset to seal the through hole, so that filler supplementing is automatically started and stopped; the cleaning assembly conveys gas through the gas inlet pipe, part of the gas flows into the air outlet pipe through the through hole and is sprayed out from the air outlet end at a high speed, impurities such as dust on the surface of a cable core are effectively removed through gas impact force, and the other part of the gas pushes the piston to move, so that the gas enters the expansion pipe and then enters the pressure cavity to supplement pressure. When the pressure of the pressure cavity is reduced due to extrusion of the annular air bag, gas can be supplemented in time to maintain the pressure stable, the filler in the storage cavity is ensured to continuously and stably flow out, and effective filling of gaps of the cable core is realized.

This invention provides a technique for accurately determining the correspondence between the ends of insulated wires in a multi-core cable with multiple insulated wires. An inspection device for determining the correspondence between the ends of insulated wires in a multi-core cable includes: a signal input unit that inputs an inspection signal to one end of each insulated wire via capacitive coupling; a signal output unit that outputs an inspection signal from the other end of each insulated wire via capacitive coupling; and a determination unit that measures the voltage of the inspection signal to determine the correspondence of the other ends of the insulated wires. At least one of the signal input unit and the signal output unit has a signal transmission cable and a substrate. A first electrode connected to the signal transmission cable is provided on one main surface of the substrate, and a second electrode capacitively coupled to the insulated wire is provided on the other main surface of the substrate. A transmission line connected to the first and second electrodes and transmitting the inspection signal is provided inside the substrate, and a shielding layer is provided on the substrate to suppress noise intrusion into the transmission line.

The present invention discloses a liquid level gauge for nuclear power liquid metal and a manufacturing method thereof, which overcomes the problem that the traditional liquid level gauges in the prior art do not meet the usage requirements of special environments such as nuclear power liquid metal and cannot measure the liquid level of nuclear power liquid metal. The liquid level gauge includes: a multi-core cable, an aviation plug, and a measuring device connected in sequence. The measuring device includes an outer sleeve and an electrode installed inside the outer sleeve. The outer sleeve is provided with an electrode hole, and a hollow ceramic ball head is installed at the electrode hole. One end of the electrode is connected to the aviation plug, and the other end of the electrode passes through the inner hole of the ceramic ball head and is insulated and sealed with the ceramic ball head. The problem of measuring the liquid level of nuclear power liquid metal when the nuclear reactor is at a high temperature of 500 °C and a pressure of 4 MPa is solved.

The invention discloses a multi-core cable arranging method and system applying a robot, and relates to the field of cable manufacturing. The method is applied to a flat cable robot control system and comprises the following steps: acquiring a projection curve of a to-be-processed cable core; identifying abnormal segments in the projection curve; the performance parameters of the abnormal segments are matched with a preset wire arrangement table, the winding standard of the multi-core cable corresponding to the abnormal segments is obtained, and the winding standard comprises the twisting angle and the pitch; performing difference value calculation on the winding standard of the multi-core cable corresponding to the abnormal segment and the winding standard of the to-be-processed multi-core cable to obtain a twisting angle difference value and a pitch difference value; according to the twisting angle difference value and the pitch difference value, determining a wire arrangement strategy of the abnormal segment; and when the abnormal segments start to be subjected to wire arrangement, the feeding speed and the wire arrangement tension of the wire arrangement mechanism to the to-be-processed wire core are controlled according to the wire arrangement strategy. By implementing the technical scheme provided by the invention, the problem that the processing quality of the multi-core cable is reduced due to error accumulation of the wire cores is solved.

The invention discloses an underground formation current injection electrode. The electrode comprises an upper connecting assembly, an electrode body, a lower connecting assembly, an upper multi-core cable and a lower multi-core cable, the upper multi-core cable penetrates through a plurality of mutually isolated holes in the upper connecting assembly, and the lower multi-core cable penetrates through a plurality of mutually isolated holes in the lower connecting assembly; the upper multi-core cable penetrates through a wire passing space arranged in the electrode body and is connected with the lower multi-core cable; the upper multi-core cable comprises a plurality of upper cable leads, and at least one upper cable lead is conducted with the electrode body; and the wire passing space is filled with an insulating medium. The electrode disclosed by the invention is simple in structure, convenient to construct, good in insulativity and high in safety and feasibility.

This invention provides a method for manufacturing a multi-core cable that allows multiple wires to be connected to a connecting member simultaneously, such as when the diameters of multiple wires are not uniform. [Solution] Each of the multiple electric wires 11 and 12 includes a conductor, a covering that covers the conductor, and exposed portions E1 and E2 where the conductor is exposed when the covering is removed. The connecting member includes a substrate, and the first surface of the substrate 21 is provided with multiple terminals 23 corresponding to each of the multiple electric wires. When the substrate is placed on a horizontal surface with the first surface facing upward, the height of the tops of the exposed portions placed on the corresponding terminals is not uniform. The manufacturing method includes a placement step of placing the exposed portions and solder 30 on the multiple terminals, and a connection step of connecting the multiple terminals and the exposed portions of the multiple electric wires corresponding to the multiple terminals all at once by pressing a flexible member 40 against the exposed portions and pressing toward the substrate, while heating the conductors using a non-contact method to melt the solder and solder them.

A wireless communication device (1A) comprises a control board (10A) installed inside a housing (20) of a device (2), and an antenna / user interface unit (11A) installed outside the housing (20). The control board (10A) generates a wireless signal based on data acquired from the device (2), transmits the wireless signal to the antenna / user interface unit (11A) via a high-frequency signal cable (12A), generates a display signal based on the state of the wireless communication device (1A), transmits the display signal to the antenna / user interface unit (11A) via a multi-core cable (13A), and receives an operation signal from the antenna / user interface unit (11A) via the multi-core cable (13A). The antenna / user interface unit (11A) transmits the wireless signal received from the control board (10A) to a server (3), performs display based on the display signal received from the control board (10A), receives an operation by a user, and transmits an operation signal related to the received operation to the control board (10A).

Apparatus and methods for coupling to a multi-core steel wire armored cable or a multi-core cable are described. The apparatus may include one or more magnets and one or more magnetic field sensors, and / or may include an array of two or more one or more sensors to enable the accommodation of the twisting of a plurality of conductors or cores. The apparatus is configured such that when the apparatus is coupled to the multi-core steel wire armored cable, a magnetic field corresponding to the one or more magnets is applied to an area of the multi-core steel wire armored cable. The apparatus is configured such that when the apparatus is coupled to the multi-core steel wire armored cable, each magnetic field sensor is oriented to detect a magnetic field component originating from the region of the multi-core steel wire armored cable.

A drain wire separation apparatus 10 comprises: a holding member 21 that holds a multicore cable 1 so as to be located on an axis 20a extending in an F-Rr direction; a separating member 61 which comprises a drain wire introduction part 61a into which a drain wire 2 can be introduced and which is provided at one position in an L-R direction orthogonal to the F-Rr direction; a first movement device 66 that moves the separating member 61 in a U-D direction; a first detection device 50 that detects the position of the drain wire 2 with respect to the L-R direction; a second movement device 64 that moves the separating member 61 in the L-R direction; and a control device 100. The control device 100 causes the first detection device 50 to detect the position of the drain wire 2 in the L-R direction, controls the second movement device 64 on the basis of the detected position of the drain wire 2, and causes the position of the drain wire introduction part 61a in the L-R direction and the position of the drain wire 2 in the L-R direction to coincide with each other.

The present invention discloses an electric leak detection and crosstalk detection string and leak detection process. The string includes a surface control portion and a downhole leak detection portion connected by a multi-core cable. The multi-core cable and the casing form an oil-casing annulus. The downhole leak detection portion includes an electric packer connected to one end of the multi-core cable, and pressure sensors a and b respectively installed at the upper and lower ends of the electric packer rubber sleeve, with pressure sensors a and b respectively connected to different cable cores of the multi-core cable. The surface control portion includes a cable transmission control mechanism connected to the other end of the multi-core cable for lowering the multi-core cable into or out of the wellbore, an electric packer control terminal for controlling the operation of the electric packer, and a pressure monitoring system for displaying pressure values ​​and / or pressure change graphs. The system can realize intelligent and visual leak detection, shorten leak detection construction time, and improve leak detection efficiency. The use of cables to lower the packer reduces the labor intensity and operating costs of workers.

This invention provides a cable arranging clamp capable of suppressing the shallowing of the slot due to wear and increasing the detection voltage, as well as an inspection method for multi-core cables. The cable arranging clamp arranges multiple cables included in a multi-core cable. The cable arranging clamp includes a slot forming portion. The slot forming portion includes a support member made of an insulator and multiple metal members spaced apart on the surface of the support member. The slot is formed by the support member and two adjacent metal members. Adjacent metal members are electrically insulated in the width direction of the slot.

A multicore cable includes a core in which multiple electrical wires are twisted together, a release layer covering the core, and a jacket covering the release layer. A lay length for the multiple electrical wires is greater than or equal to 21 times and less than or equal to 28 times a long dimension of the core, and the release layer is fixed to the jacket.

To provide a multi-core cable that is easy to bend and easily maintains its shape in a bent state.SOLUTION: A cable 1 comprises a plurality of wires 2, each having an insulator 22 that covers the circumference of a conductor 21, and a sheath 7 that covers the circumference of an assembled core 4 that is configured by twisting the plurality of wires 2 in two or more layers. In the assembled core 4, adjacent wires 2 are in contact with each other on the surface of insulator 4. The insulator 22 has a surface roughness Sdr of 1.0 or more, and a surface roughness Spc of 3000 mm-1 or more.SELECTED DRAWING: Figure 1