CN116453745B - Wisdom energy's power cable - Google Patents

Wisdom energy's power cable Download PDF

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Publication number
CN116453745B
CN116453745B CN202310583791.4A CN202310583791A CN116453745B CN 116453745 B CN116453745 B CN 116453745B CN 202310583791 A CN202310583791 A CN 202310583791A CN 116453745 B CN116453745 B CN 116453745B
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CN
China
Prior art keywords
insulating layer
ring
outer side
cloth bag
power cable
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Active
Application number
CN202310583791.4A
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Chinese (zh)
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CN116453745A (en
Inventor
庞鹏
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Hebei Yingtai Electric Cable Co ltd
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Hebei Yingtai Electric Cable Co ltd
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Priority to CN202310583791.4A priority Critical patent/CN116453745B/en
Publication of CN116453745A publication Critical patent/CN116453745A/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
    • H01B7/1815—Protections not provided for in groups H01B7/182 - H01B7/26 composed of longitudinal inserts
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
    • H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
    • H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/006—Constructional features relating to the conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Cable Accessories (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention discloses a smart energy power cable, which relates to the technical field of cables, wherein a high-temperature short circuit prevention component is arranged on the outer side of an inner insulating layer, a metal net cage is embedded on the inner side of a central tube, a deformation hole is formed in the middle of one end of a connecting middle plate, a rubber ring is embedded in the deformation hole, a rotating shaft is embedded in the middle of the rubber ring, connecting side plates are fixedly sleeved at two ends of the rotating shaft, a cloth bag is arranged at the position, between adjacent inner wires, of the outer side of the central tube, and exhaust holes are uniformly formed at the position, close to the cloth bag, of the outer side of the central tube.

Description

Wisdom energy's power cable
Technical Field
The invention relates to the technical field of cables, in particular to a smart energy power cable.
Background
The intelligent energy is a new energy production and utilization form obtained by applying new generation information technologies such as the Internet, the Internet of things and the like to monitor, store, convey and use the energy in real time, detect, report and optimize the energy in real time on the basis of big data and cloud computing so as to form an integrated management system which is in an optimal state, is open, transparent, decentralizes and widely voluntarily participates, and the integrated management system is utilized to obtain a new energy production and utilization form, and a cable matched for use is indispensable in the use process of the intelligent energy.
However, if the power cable in the current market generates high temperature during the use process, short circuit is easy to occur due to the fact that the inner wires are too close to each other, the problem that the cable diameter is too large is caused by directly expanding the distance between the inner wires, the cable needs to be replaced after being damaged due to the fact that the cable is high Wen Ziran, the outer side of the cable is not obvious, and time and labor are wasted in detection.
Disclosure of Invention
The invention provides a smart energy power cable, which can effectively solve the problems that if the power cable is high in temperature in the use process, short circuits are easily generated due to too close spacing of internal wires, the distance between the internal wires is directly enlarged, the diameter of the cable is too large, the cable needs to be replaced after being damaged due to the high Wen Ziran, the outer side of the cable is not obvious, and the detection is time-consuming and labor-consuming.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a wisdom energy power cable, includes the inner insulating layer, the inside internal conductor that evenly is provided with of inner insulating layer, its characterized in that: the outer side of the inner insulating layer is provided with a high-temperature short-circuit prevention component, and the high-temperature short-circuit prevention component comprises a central tube;
the inner insulating layer is characterized in that central pipes are equidistantly arranged at the position of the inner axis of the inner insulating layer, metal net cages are inlaid on the inner sides of the central pipes, connecting middle plates are welded in the middle of one ends of the metal net cages, deformation holes are formed in the middle of one ends of the connecting middle plates, rubber rings are inlaid in the deformation holes, rotating shafts are inlaid in the middle of the rubber rings, and connecting side plates are fixedly sleeved at two ends of each rotating shaft;
the inner side of the central tube is filled with first aluminum hydroxide powder, a cloth bag is arranged at the position, between the adjacent inner wires, of the outer side of the central tube, sodium sulfate powder is filled in the cloth bag, exhaust holes are uniformly formed in the position, close to the cloth bag, of the outer side of the central tube, flame-retardant strips are uniformly filled in the gaps between the inner wires, and one side of each flame-retardant strip is adhered with a hollow tube.
According to the technical scheme, the outer side of the inner lead is symmetrically inlaid with the armor half ring, one end of the armor half ring is provided with the rotating groove, the other end of the armor half ring is welded with the rotating rod, the inner side of one end of the rotating rod is fixedly penetrated with the positioning needle, the outer side of the armor half ring is symmetrically provided with the filling groove, the inner side of the filling groove is filled with second aluminum hydroxide powder, and a plurality of armor half rings are all positioned in the outer insulating layer;
the central tube is combined into a strip shape through the connecting middle plate, the rotating shaft and the connecting side plates, and is used as the center of a cable, when the temperature in the cable is too high and a fire occurs, the first aluminum hydroxide powder in the metal net cage is heated and decomposed to generate water vapor, the fire is extinguished and cooled, the redundant water vapor is absorbed by sodium sulfate powder in the cloth bag, the sodium sulfate powder is crystallized and expanded, and the inner wires are extruded and pushed to be far away from each other;
if the temperature is still continuously increased, the high temperature is transmitted to the armoring semi-ring through the inner insulating layer, the second aluminum hydroxide powder is continuously heated, decomposed and cooled, and the generated vapor can deform and expand the outer insulating layer.
According to the technical scheme, the metal net cage is hollow and cylindrical, and the central axis of the metal net cage is coincident with the central axis of the inner lead.
According to the technical scheme, the end faces of the flame-retardant strips are solid semicircles, the end faces of the hollow tubes are hollow semicircles, and the flame-retardant strips are mutually bonded with one side of the plane of the hollow tubes.
According to the technical scheme, the longitudinal section of the cloth bag is rectangular, one side of the cloth bag is connected with the inner wall of the inner insulating layer in an adhesive mode, and the central tubes are connected with the other side of the cloth bag in an adhesive mode.
According to the technical scheme, the distance between two ends of the rubber ring, which respectively exceed two sides of the connecting middle plate, is mm, and edges of two ends of the rubber ring are chamfered.
According to the technical scheme, the end part of the outer insulating layer is provided with the connection maintenance assembly, and the connection maintenance assembly comprises an external thread end cover;
the two ends of the outer insulating layer are fixedly sleeved with external thread end covers, wiring thorns are fixedly and penetratingly arranged at positions corresponding to the internal leads of the external thread end covers, insulating column tubes are welded on one sides of the wiring thorns, wiring tubes are embedded in the insulating column tubes positioned at one end of the outer insulating layer, binding posts are embedded in the insulating column tubes positioned at the other end of the outer insulating layer, and spring pieces are uniformly welded on the outer sides of the binding posts;
the outer side of the external thread end cover is connected with an external hexagonal ring through threads, a limit clamp is uniformly welded on one side of the external hexagonal ring, which is close to the external thread end cover, two ends of a connecting pipe are respectively welded between the adjacent external thread end covers, detection holes are symmetrically formed in the outer side of the connecting pipe, a shielding ring is rotationally sleeved on the outer side of the connecting pipe, a dislocation hole is formed in the position, corresponding to the detection hole, of the shielding ring, and one end, opposite to the insulating column pipe, is connected with a sealing ring in an adhesive mode;
the external thread end covers are respectively connected with the external hexagonal rings at the two ends of the connecting pipe, the multi-section cable is connected, the external hexagonal rings are rotated, the external thread end covers are mutually close, the spring piece enters the connecting pipe until the opposite sealing rings are mutually pressed, contacted and sealed, during detection, the shielding ring is rotated, the detection holes are overlapped with the dislocation holes, and then the external hexagonal rings are reversely rotated to expose the spring piece.
According to the technical scheme, the longitudinal section of the wiring thorn is cross-shaped, and one end of the wiring thorn is embedded into one end of the inner lead.
According to the technical scheme, the longitudinal section of the wiring tube is isosceles trapezoid, a plurality of spring pieces at one end of the wiring post surround to be annular, and edges of the spring pieces are chamfered.
According to the technical scheme, the detection holes and the dislocation holes are identical in shape, and the inner wall of the shielding ring is tightly attached to the outer side of the connecting pipe.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use;
the central tube is combined into a strip shape through the connecting middle plate, the rotating shaft and the connecting side plates, and is used as the center of the cable, so that the strength of the center of the cable is increased, and the strength of the outer side of the cable is increased through the armor half ring between the inner insulating layer and the outer insulating layer;
when the internal temperature of the cable is too high and a fire occurs, the first aluminum hydroxide powder in the metal mesh cage is heated and decomposed to generate water vapor, the water vapor remaining in the cable is condensed into water drops after fire extinguishing and cooling, and the water drops are absorbed by sodium sulfate powder in the cloth bag, the sodium sulfate powder is crystallized and expanded, the inner wires are pushed to be far away from each other by extrusion, at the moment, the hollow tube on one side of the flame retardant strip is extruded and deformed, the interval between the inner wires is enlarged under the condition of not changing the diameter of the cable, the short circuit after the cable insulating layer is damaged is prevented, and the safety is higher;
if the temperature still continuously rises, the high temperature can permeate the inner insulating layer and be transmitted to the armor semi-ring, the second aluminum hydroxide powder is continuously heated, decomposed and cooled, and the produced vapor can deform and expand the outer insulating layer, so that the cable is expanded from the flame section, the diameter is enlarged, the cable is easy to identify when cooled, and the cable is convenient to maintain and replace.
The connecting overhaul assembly is arranged, the external thread end cover is connected with the external hexagonal rings at two ends of the connecting pipe respectively, the multi-section cable is connected, the external hexagonal rings are rotated, the external thread end covers are mutually close, the spring piece enters the wiring pipe until the opposite sealing rings are mutually pressed and contacted and sealed, water penetration is prevented, the connection is simple and convenient, the shielding ring is rotated during detection, the detection holes are coincided with the dislocation holes, the external hexagonal rings are reversely rotated again, the spring piece is exposed, the used probes and the spring piece which are detected can be put into the detection holes to contact with data such as voltage and current, and the connection is simple and the detection is convenient.
In conclusion, the high-temperature short-circuit prevention assembly enlarges the distance between the inner wires under the condition that the diameter of the cable is not changed, short-circuit is prevented, the safety is higher, the connection maintenance assembly can directly detect the cable without peeling off the cable sheath, the operation is simple while the safety is ensured, and the overall safety of the cable is higher.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a high temperature short circuit prevention assembly according to the present invention;
FIG. 3 is a schematic view of the mounting structure of the positioning needle of the present invention;
FIG. 4 is a schematic view of the mounting structure of the cloth bag of the present invention;
FIG. 5 is a schematic view of the mounting structure of the connecting midplane of the present invention;
FIG. 6 is a schematic view of the structure of the connection service assembly of the present invention;
FIG. 7 is a schematic view of the mounting structure of the spring plate of the present invention;
reference numerals in the drawings: 1. an inner insulating layer; 2. an inner wire;
3. a high temperature short circuit prevention assembly; 301. a central tube; 302. a metal net cage; 303. connecting a middle plate; 304. a deformation hole; 305. a rubber ring; 306. a rotating shaft; 307. connecting the side plates; 308. a first aluminum hydroxide powder; 310. a cloth bag; 311. sodium sulfate powder; 312. an exhaust hole; 313. flame retardant strips; 314. a hollow tube; 315. an armor half ring; 316. a rotating groove; 317. a rotating lever; 318. a positioning needle; 319. filling the groove; 320. a second aluminum hydroxide powder; 321. an outer insulating layer;
4. connecting an overhaul assembly; 401. an external threaded end cap; 402. wiring thorns; 403. an insulating pillar; 404. a wire connection tube; 405. binding posts; 406. a spring piece; 407. an outer hexagonal ring; 408. a limit clamp; 409. a connecting pipe; 410. a detection hole; 411. a shielding ring; 412. staggered holes; 413. and (3) a sealing ring.
Description of the embodiments
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples: as shown in fig. 1-7, the invention provides a power cable technical scheme of smart energy, which comprises an inner insulating layer 1, wherein inner wires 2 are uniformly arranged inside the inner insulating layer 1, a high-temperature short-circuit prevention component 3 is arranged outside the inner insulating layer 1, and the high-temperature short-circuit prevention component 3 comprises a central pipe 301, a metal net cage 302, a connecting middle plate 303, a deformation hole 304, a rubber ring 305, a rotating shaft 306, a connecting side plate 307, first aluminum hydroxide powder 308, a cloth bag 310, sodium sulfate powder 311, an exhaust hole 312, a flame retardant bar 313, a hollow pipe 314, an armor half ring 315, a rotating groove 316, a rotating rod 317, a positioning needle 318, a filling groove 319, second aluminum hydroxide powder 320 and an outer insulating layer 321;
the central tube 301 is equidistantly arranged at the position of the inner axis of the inner insulating layer 1, the metal net cage 302 is inlaid at the inner side of the central tube 301, the metal net cage 302 is hollow and cylindrical, the central axis of the metal net cage 302 coincides with the central axis of the inner lead 2, the first aluminum hydroxide powder 308 is conveniently filled, the middle part of one end of the metal net cage 302 is welded with the connecting middle plate 303, the middle part of one end of the connecting middle plate 303 is provided with the deformation hole 304, the rubber ring 305 is inlaid in the deformation hole 304, the two ends of the rubber ring 305 respectively exceed the two sides of the connecting middle plate 303 by 2mm, the edges of the two ends of the rubber ring 305 are chamfered, the rubber ring 305 can deform while ensuring the connecting effect, the middle part of the rubber ring 305 is inlaid with the rotating shaft 306, and the two ends of the rotating shaft 306 are fixedly sleeved with the connecting side plate 307;
the central tube 301 is internally filled with first aluminum hydroxide powder 308, a cloth bag 310 is arranged at the position, between the adjacent inner wires 2, of the outer side of the central tube 301, the cloth bag 310 is made of fireproof materials, sodium sulfate powder 311 is filled in the cloth bag 310, vent holes 312 are uniformly formed in the position, close to the cloth bag 310, of the outer side of the central tube 301, flame retardant strips 313 are uniformly filled in gaps among the inner wires 2, one sides of the flame retardant strips 313 are bonded with hollow tubes 314, the end faces of the flame retardant strips 313 are solid semicircles, the end faces of the hollow tubes 314 are hollow semicircles, one sides of planes of the flame retardant strips 313 and the hollow tubes 314 are bonded with each other, and the flame retardant strips 313 and the hollow tubes 314 are bonded and connected conveniently.
The outer side of the inner lead 2 is symmetrically inlaid with an armoring half ring 315, one end of the armoring half ring 315 is provided with a rotating groove 316, the other end of the armoring half ring 315 is welded with a rotating rod 317, a positioning needle 318 is fixedly and penetratingly arranged at the inner side of one end of the rotating rod 317, the outer side of the armoring half ring 315 is symmetrically provided with a filling groove 319, the inner side of the filling groove 319 is filled with second aluminum hydroxide powder 320, and a plurality of armoring half rings 315 are all positioned in an outer insulating layer 321;
the central tube 301 is combined into a strip shape through the connecting middle plate 303, the rotating shaft 306 and the connecting side plates 307, and is used as the center of a cable, when the temperature in the cable is too high and a fire occurs, the first aluminum hydroxide powder 308 in the metal mesh cage 302 is heated and decomposed to generate water vapor, the fire is extinguished and cooled, the excessive water vapor is absorbed by the sodium sulfate powder 311 in the cloth bag 310, the longitudinal section of the cloth bag 310 is rectangular, one side of the cloth bag 310 is bonded and connected with the inner wall of the inner insulating layer 1, a plurality of central tubes 301 are bonded and connected with the other side of the cloth bag 310, so that the cloth bag 310 is conveniently fixed, the sodium sulfate powder 311 is crystallized and expanded, and the inner wires 2 are extruded and pushed to be far away from each other;
if the temperature continues to rise, the high temperature is transmitted to the armor half-ring 315 through the inner insulating layer 1, the second aluminum hydroxide powder 320 is continuously heated, decomposed and cooled, and the generated vapor deforms and expands the outer insulating layer 321.
The end part of the outer insulating layer 321 is provided with a connection maintenance assembly 4, and the connection maintenance assembly 4 comprises an external thread end cover 401, a wiring thorn 402, an insulating column tube 403, a wiring tube 404, a wiring post 405, a spring piece 406, an outer hexagonal ring 407, a limit clamp 408, a connecting tube 409, a detection hole 410, a shielding ring 411, a dislocation hole 412 and a sealing ring 413;
the two ends of the outer insulating layer 321 are fixedly sleeved with the outer thread end caps 401, the positions of the outer thread end caps 401 corresponding to the inner wires 2 are fixedly penetrated and provided with wiring thorns 402, the longitudinal section of each wiring thorn 402 is cross-shaped, one end of each wiring thorn 402 is embedded into one end of each inner wire 2 so as to facilitate connection between each wiring thorn 402 and each inner wire 2, one side of each wiring thorn 402 is welded with an insulating column tube 403, a wiring tube 404 is embedded into each insulating column tube 403 positioned at one end of the outer insulating layer 321, a binding post 405 is embedded into each insulating column tube 403 positioned at the other end of the outer insulating layer 321, spring pieces 406 are uniformly welded outside the binding post 405, the longitudinal section of each wiring tube 404 is isosceles trapezoid, a plurality of spring pieces 406 at one end of each binding post 405 surround to be annular, edges of the spring pieces 406 are chamfered so that the spring pieces 406 can enter the inside of each wiring tube 404;
the outer side of the external thread end cover 401 is connected with an external hexagonal ring 407 through threads, a limit clamp 408 is uniformly welded on one side of the external hexagonal ring 407, which is close to the external thread end cover 401, between two adjacent external thread end covers 401, which are respectively welded on two ends of a connecting pipe 409, detection holes 410 are symmetrically formed on the outer side of the connecting pipe 409, a shielding ring 411 is rotatably sleeved on the outer side of the connecting pipe 409, a dislocation hole 412 is formed at the position, corresponding to the detection hole 410, of the shielding ring 411, the detection hole 410 and the dislocation hole 412 are identical in shape, the inner wall of the shielding ring 411 is tightly attached to the outer side of the connecting pipe 409, so that the shielding ring 411 can ensure tightness when the outer side of the connecting pipe 409 smoothly rotates, and the opposite ends of the insulating column 403 are adhered with a connecting ring 413;
the external thread end caps 401 are respectively connected with the external hexagonal rings 407 at the two ends of the connecting pipe 409, a plurality of sections of cables are connected, the external hexagonal rings 407 are rotated, the external thread end caps 401 are mutually close, the spring piece 406 enters the wiring pipe 404 until the opposite sealing rings 413 are mutually pressed, contacted and sealed, during detection, the shielding ring 411 is rotated, the detection holes 410 are overlapped with the dislocation holes 412, and then the external hexagonal rings 407 are reversely rotated to expose the spring piece 406.
The working principle and the using flow of the invention are as follows: the central tube 301 is assembled into a long strip shape through the connecting middle plate 303, the rotating shaft 306 and the connecting side plate 307, as shown in fig. 5, as the center of a cable, the strength of the center of the cable is increased, the inside of the cloth bag 310 is filled with sodium sulfate powder 311 and then is adhered to the outer side of the connecting middle plate 303, the inner wires 2 are uniformly placed in gaps between the cloth bag 310, then the assembly of the flame retardant strips 313 and the hollow tubes 314 is filled, then the inner insulating layer 1 is wrapped on the outer side, armor half rings 315 are sequentially and symmetrically embedded on the outer side of the inner insulating layer 1, the rotating rods 317 are correspondingly placed in the rotating grooves 316, the armor half rings 315 between the inner insulating layer 1 and the outer insulating layer 321 increase the strength of the outer side of the cable, when the cable is bent, the rubber rings 305 deform, the rotating rods 317 move in the rotating grooves 316 to support the cable at all times, and the strength is ensured;
the external thread end cover 401 is sleeved at one end of the cable, the wiring thorns 402 penetrate into one end of the internal lead 2, the external thread end cover 401 is respectively connected with the external hexagonal rings 407 at two ends of the connecting pipe 409, a plurality of sections of cables are connected, the external hexagonal rings 407 are rotated, the external thread end covers 401 are mutually close, the spring pieces 406 enter the wiring pipe 404 until the opposite sealing rings 413 are mutually pressed and contacted for sealing, finally the shielding ring 411 is rotated, the detection holes 410 and the dislocation holes 412 are dislocation sealed, water infiltration is prevented, and the connection is simple and convenient;
when the internal temperature of the cable is too high and a fire occurs, the first aluminum hydroxide powder 308 in the metal mesh cage 302 is heated and decomposed to generate water vapor, the water vapor is discharged from the exhaust hole 312, the fire is extinguished and cooled, after the temperature is cooled, the excessive water vapor is condensed into water droplets, the water droplets are absorbed by sodium sulfate powder 311 in the cloth bag 310, the sodium sulfate powder 311 is crystallized and expanded, the inner wires 2 are pushed to be far away from each other by extrusion, at the moment, the hollow tube 314 at one side of the flame retardant strip 313 is extruded and deformed, the space between the inner wires 2 is enlarged under the condition of not changing the diameter of the cable, the short circuit is prevented, and the safety is higher;
if the temperature is still continuously increased, the high temperature is transmitted to the armor half ring 315 through the inner insulating layer 1, the second aluminum hydroxide powder 320 is continuously heated, decomposed and cooled, and the generated vapor can deform and expand the outer insulating layer 321, so that the spontaneous combustion section of the cable is expanded, the diameter is enlarged, and the cable is easy to identify and convenient to maintain and replace while cooling;
during routine maintenance detection, the shielding ring 411 is rotated, the detection hole 410 and the dislocation hole 412 are overlapped, the outer hexagonal ring 407 is reversely rotated, the outer threaded end cover 401 is mutually separated, the spring piece 406 in the wiring tube 404 is moved out, the spring piece 406 deforms along with the movement, the spring piece 406 always contacts the wiring tube 404 to maintain the electrified state, the used detection probes which are detected in the detection hole 410 and the spring piece 406 contact detection voltage and current and other data, if power is required to be cut off, the outer hexagonal ring 407 is continuously reversely rotated until the spring piece 406 is separated from the wiring tube 404, the limiting clamp 408 is clamped with the outer threaded end cover 401 at the moment to prevent excessive rotation, detection during power off can be carried out, and the connection is simple and the detection is convenient.
In conclusion, the high-temperature short-circuit prevention assembly 3 enlarges the space between the inner wires under the condition of not changing the diameter of the cable, prevents short-circuit, and has higher safety, and the connection maintenance assembly 4 can directly detect the cable without peeling off the cable sheath, so that the operation is simple while the safety is ensured, and the overall safety of the cable is higher.
Finally, it should be noted that: the foregoing is merely a preferred example of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a wisdom energy power cable, includes interior insulating layer (1), interior insulating layer (1) inside evenly is provided with interior wire (2), its characterized in that: the outer side of the inner insulating layer (1) is provided with a high-temperature short-circuit prevention component (3), and the high-temperature short-circuit prevention component (3) comprises a central tube (301);
the inner insulating layer (1) is provided with central tubes (301) at equal intervals at the inner axis position, metal net cages (302) are embedded in the inner sides of the central tubes (301), connecting middle plates (303) are welded in the middle of one ends of the metal net cages (302), deformation holes (304) are formed in the middle of one ends of the connecting middle plates (303), rubber rings (305) are embedded in the deformation holes (304), rotating shafts (306) are embedded in the middle of the rubber rings (305), and connecting side plates (307) are fixedly sleeved at two ends of the rotating shafts (306);
the inner side of the central tube (301) is filled with first aluminum hydroxide powder (308), a cloth bag (310) is arranged at the position, between the adjacent inner wires (2), of the outer side of the central tube (301), sodium sulfate powder (311) is filled in the cloth bag (310), exhaust holes (312) are uniformly formed in the position, close to the cloth bag (310), of the outer side of the central tube (301), flame-retardant strips (313) are uniformly filled in the gaps between the inner wires (2), and one side of each flame-retardant strip (313) is adhered with a hollow tube (314);
the inner lead (2) is symmetrically inlaid with an armor half ring (315), one end of the armor half ring (315) is provided with a rotating groove (316), the other end of the armor half ring (315) is welded with a rotating rod (317), a positioning needle (318) is fixedly arranged through the inner side of one end of the rotating rod (317), the outer side of the armor half ring (315) is symmetrically provided with a filling groove (319), the inner side of the filling groove (319) is filled with second aluminum hydroxide powder (320), and a plurality of armor half rings (315) are all positioned in an outer insulating layer (321);
the central tube (301) is combined into a strip shape through the connecting middle plate (303), the rotating shaft (306) and the connecting side plates (307), when the temperature inside the cable is too high and a fire occurs, the first aluminum hydroxide powder (308) in the metal mesh cage (302) is heated and decomposed to generate water vapor, fire is extinguished and cooled, the redundant water vapor is absorbed by the sodium sulfate powder (311) in the cloth bag (310), the sodium sulfate powder (311) is crystallized and expanded, and the inner wires (2) are pushed to be far away from each other;
if the temperature is still continuously increased, the high temperature is transmitted to the armor half ring (315) through the inner insulating layer (1), the second aluminum hydroxide powder (320) is continuously heated, decomposed and cooled, and the generated vapor can deform and expand the outer insulating layer (321);
the end part of the outer insulating layer (321) is provided with a connection maintenance assembly (4), and the connection maintenance assembly (4) comprises an external thread end cover (401);
external thread end covers (401) are fixedly sleeved at two ends of the external insulation layer (321), wiring thorns (402) are fixedly installed at positions, corresponding to the internal wires (2), of the external thread end covers (401), insulation column pipes (403) are welded on one sides of the wiring thorns (402), wiring pipes (404) are embedded in the insulation column pipes (403) at one end of the external insulation layer (321), binding posts (405) are embedded in the insulation column pipes (403) at the other end of the external insulation layer (321), and spring pieces (406) are uniformly welded on the outer sides of the binding posts (405);
the outer side of the external thread end cover (401) is connected with an external hexagonal ring (407) through threads, a limit clamp (408) is uniformly welded on one side, close to the external thread end cover (401), of the external hexagonal ring (407), two ends of a connecting pipe (409) are respectively welded between the adjacent external thread end covers (401), detection holes (410) are symmetrically formed in the outer side of the connecting pipe (409), a shielding ring (411) is rotatably sleeved on the outer side of the connecting pipe (409), a dislocation hole (412) is formed in the position, corresponding to the detection holes (410), of the shielding ring (411), and sealing rings (413) are respectively bonded and connected at the opposite ends of the insulating column (403);
the external thread end cover (401) is respectively connected with external hexagonal rings (407) at two ends of the connecting pipe (409), a plurality of sections of cables are connected, the external hexagonal rings (407) are rotated, the external thread end cover (401) is mutually close, the spring piece (406) enters the wiring pipe (404) until opposite sealing rings (413) are mutually pressed and contacted for sealing, during detection, the shielding ring (411) is rotated, the detection hole (410) is overlapped with the dislocation hole (412), and then the external hexagonal rings (407) are reversely rotated to expose the spring piece (406).
2. The smart energy power cable of claim 1 wherein said metal mesh cage (302) is hollow cylindrical, said metal mesh cage (302) central axis and inner conductor (2) central axis being coincident.
3. The smart power cable of claim 1 wherein said flame retardant strips (313) are solid semicircles on the ends of said hollow tubes (314) and wherein said flame retardant strips (313) are bonded to one side of the plane of said hollow tubes (314).
4. The smart energy power cable of claim 1, wherein the longitudinal section of the cloth bag (310) is rectangular, one side of the cloth bag (310) is adhesively connected with the inner wall of the inner insulating layer (1), and a plurality of central tubes (301) are adhesively connected with the other side of the cloth bag (310).
5. The smart power cable of claim 1, wherein the distance between the two ends of the rubber ring (305) beyond the two sides of the connecting middle plate (303) is 2mm, and the edges of the two ends of the rubber ring (305) are chamfered.
6. The smart energy power cable of claim 1 wherein said terminal (402) is cross-shaped in longitudinal section, and one end of said terminal (402) is embedded in one end of said inner conductor (2).
7. The smart energy power cable of claim 1 wherein said connector (404) is isosceles trapezoid in longitudinal section, a plurality of tabs (406) at one end of said connector (405) are looped around, and said tabs (406) are chamfered at their edges.
8. The smart power cable of claim 1, wherein the detection hole (410) and the dislocation hole (412) are the same in shape, and the inner wall of the shielding ring (411) is tightly attached to the outer side of the connecting pipe (409).
CN202310583791.4A 2023-05-23 2023-05-23 Wisdom energy's power cable Active CN116453745B (en)

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CN116705395B (en) * 2023-08-07 2023-10-20 潮源线缆有限公司 Fire-resistant aluminum alloy power cable
CN117558501B (en) * 2023-11-13 2024-05-07 哈尔滨交联电力电缆制造有限公司 Fire-resistant cable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011140052A (en) * 2010-01-08 2011-07-21 Nippon Steel Corp Flux-cored wire for gas-shielded welding
CN115798807A (en) * 2023-02-03 2023-03-14 兴华线缆有限公司 Low-smoke halogen-free flame-retardant fire-resistant power cable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011140052A (en) * 2010-01-08 2011-07-21 Nippon Steel Corp Flux-cored wire for gas-shielded welding
CN115798807A (en) * 2023-02-03 2023-03-14 兴华线缆有限公司 Low-smoke halogen-free flame-retardant fire-resistant power cable

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