CN110957589A - Graphite grounding cable connecting device and graphite grounding cable connecting method - Google Patents
Graphite grounding cable connecting device and graphite grounding cable connecting method Download PDFInfo
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- CN110957589A CN110957589A CN201911147144.9A CN201911147144A CN110957589A CN 110957589 A CN110957589 A CN 110957589A CN 201911147144 A CN201911147144 A CN 201911147144A CN 110957589 A CN110957589 A CN 110957589A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 240
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 240
- 239000010439 graphite Substances 0.000 title claims abstract description 240
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 60
- 229910052751 metal Inorganic materials 0.000 claims abstract description 60
- 239000004744 fabric Substances 0.000 claims description 24
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000002788 crimping Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
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- Manufacturing & Machinery (AREA)
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Abstract
The invention relates to a graphite grounding cable connecting device and a graphite grounding cable connecting method. The graphite grounding cable connecting device comprises a connecting sheet, a wiring pipe and a pipe sleeve. Wherein, the wire connecting pipe is connected with the connecting piece. The wiring pipe is equipped with first lumen and the second lumen of looks spaced apart, and first lumen is circular cavity, and the second lumen encloses to be established outside first lumen, and first lumen is used for holding the graphite wire of graphite grounding cable, and the second lumen is used for holding the metal wire of graphite grounding cable. The sleeve pipe is sleeved outside the wiring pipe, a third pipe cavity is formed between the sleeve pipe and the wiring pipe, the third pipe cavity and the second pipe cavity are separated and enclosed outside the second pipe cavity, and the third pipe cavity is used for containing the graphite wire. The graphite grounding cable connecting device improves the electromagnetic shielding performance of the shielding wall formed by connecting the graphite grounding cables, and improves the tensile strength and the connection stability of the two graphite grounding belts after connection.
Description
Technical Field
The invention relates to the technical field of electric power engineering, in particular to a graphite grounding cable connecting device and a graphite grounding cable connecting method.
Background
In an area where the grounding grid of the power transmission line tower and the high-voltage gas pipeline are relatively close to each other, in order to ensure safety, an electromagnetic tunnel and an electromagnetic shielding wall need to be constructed in the grounding grid of the power transmission line tower so as to isolate the grounding grid from the high-voltage gas pipeline. The flexible graphite composite grounding band applied to the electromagnetic shielding wall is required to be doped with a certain amount of metal wires with high electric conductivity or high magnetic conductivity so as to realize the confinement of electromagnetic energy in a limited area in a grounding network. However, at present, such composite grounding strips are still connected in a traditional wire groove overlapping and pressing mode when being connected in the middle or at the terminal. The graphite grounding cable doped with the metal wires is connected in the traditional mode, so that the metal wires of the connecting part are clamped with graphite materials, and the function failure of an electromagnetic shielding wall part consisting of the graphite grounding cable, even most of electromagnetic shielding parts, is easily caused. Meanwhile, as the graphite grounding cables are soft, the tensile strength of the two graphite grounding cables is low after the two graphite grounding cables are connected.
Disclosure of Invention
Therefore, it is necessary to provide a graphite grounding cable connection device and a graphite grounding cable connection method for solving the problem of how to avoid the electromagnetic shielding failure of the electromagnetic shielding wall formed by the composite graphite grounding cable and how to improve the connection strength of the graphite grounding cable.
A graphite ground cable connection device comprising:
connecting sheets;
the wiring pipe is connected with the connecting piece and provided with a first pipe cavity and a second pipe cavity which are separated from each other, the first pipe cavity is a circular cavity, the second pipe cavity is arranged around the outside of the first pipe cavity, the first pipe cavity is used for accommodating a graphite wire of a graphite grounding cable, and the second pipe cavity is used for accommodating a metal wire of the graphite grounding cable;
the sleeve is sleeved outside the wiring pipe, a third pipe cavity is formed between the sleeve and the wiring pipe, the third pipe cavity and the second pipe cavity are separated and enclosed outside the second pipe cavity, and the third pipe cavity is used for containing the graphite wire.
Above-mentioned graphite ground connection cable connecting device is through seting up looks spaced first lumen and second lumen on the connecting tube, thereby can set up in first lumen through the graphite line with graphite ground connection cable, and set up the metal wire of graphite ground connection cable in the second lumen, make the graphite line and the graphite line lug connection of two graphite ground connection cables, metal wire and metal wire lug connection, and then in avoiding traditional crimping mode, graphite line and metal wire hybrid connection that electric conductive property is different and the shielding wall inefficacy problem that leads to, the electric conductive property that has guaranteed two graphite ground connection cable intermediate junction electric conductive properties and is not less than graphite ground connection cable body, the electromagnetic shielding performance of the shielding wall that the graphite ground connection cable connection formed has been improved. And the first pipe cavity is a circular cavity, so that the graphite grounding cable with a circular section can be more suitable. Meanwhile, the pipe sleeve is sleeved outside the wiring pipe, so that a third pipe cavity is formed between the wiring pipe and the pipe sleeve, the graphite wire in the first pipe cavity is extended out and is reversely bent to be pressed in the third pipe cavity, and the tensile strength and the connection stability of the two graphite grounding belts after connection are greatly improved.
In one embodiment, the number of the wiring tubes is at least two, each wiring tube is connected with the connecting piece, and the sleeve is sleeved outside each wiring tube.
In one embodiment, the wiring directions of at least two of the wire barrel intersect.
In one embodiment, the connection direction of the connection tube is parallel or approximately parallel to the connection piece.
In one embodiment, the cavity wall of the first lumen, the cavity wall of the second lumen and the cavity wall of the third lumen are provided with anti-slip sculpture.
In one embodiment, the wire connecting tube and the sleeve are made of metal pieces which are integrally bent.
In one embodiment, the graphite ground cable connection device further comprises a graphite film, and the graphite film is uniformly coated on the surface of the connecting sheet, the cavity wall of the first lumen, the cavity wall of the second lumen and the cavity wall of the third lumen.
In one embodiment, the graphite ground cable connection device further comprises an expansion joint, the expansion joint is connected with the connecting sheet, and the expansion joint is used for connecting third-party equipment.
In one embodiment, the graphite ground cable connecting device further comprises an outer sheath, the outer sheath comprises graphite cloth and a binding wire, the connecting sheet, the wire connecting tube and the sleeve are further coated with conductive adhesive, the graphite cloth is coated outside the connecting sheet and the sleeve and is bonded with the conductive adhesive, and the binding wire is used for binding the graphite cloth.
A graphite grounding cable connecting method comprises the following steps:
providing the graphite grounding cable connecting device;
respectively stripping the end parts of two graphite grounding cables to be connected, and separating the graphite wires of the graphite grounding cables from the metal wires;
inserting the graphite wires of the two graphite grounding cables into a first tube cavity of the wiring tube, extruding the wiring tube, and enabling the wall of the first tube cavity to clamp the graphite wires
Inserting the metal wires of the two graphite grounding cables into a second tube cavity of the wire connecting tube, and extruding the wire connecting tube to enable the wall of the second tube cavity to clamp the graphite wires;
sleeving a sleeve outside the wiring pipe to form a third pipe cavity between the sleeve and the wiring pipe;
and extending and bending the graphite wire in the first tube cavity, inserting the graphite wire into the third tube cavity, and extruding the sleeve to enable the wall of the third tube cavity to clamp the graphite wire.
According to the graphite grounding cable connecting method, the graphite wire of the graphite grounding cable is arranged in the first pipe cavity, and the metal wire of the graphite grounding cable is arranged in the second pipe cavity, so that the graphite wire and the graphite wire of the two graphite grounding cables are directly connected, the metal wire and the metal wire are directly connected, the problem that in a traditional crimping mode, a shielding wall fails due to the fact that the graphite wire and the metal wire which are different in electrical conductivity are in mixed connection is solved, the electrical conductivity of the middle connecting part of the two graphite grounding cables is not lower than that of the graphite grounding cable body, and the electromagnetic shielding performance of the shielding wall formed by connecting the graphite grounding cables is improved. And the first pipe cavity is a circular cavity, so that the graphite grounding cable with a circular section can be more suitable. Meanwhile, the pipe sleeve is sleeved outside the wiring pipe, so that a third pipe cavity is formed between the wiring pipe and the pipe sleeve, the graphite wire in the first pipe cavity is extended out and is reversely bent to be pressed in the third pipe cavity, and the tensile strength and the connection stability of the two graphite grounding belts after connection are greatly improved.
In one embodiment, the method for connecting a graphite ground cable further comprises the following steps:
when the graphite wires of the two graphite grounding cables are inserted into the first tube cavity of the wiring tube, the graphite wires of the two graphite grounding cables are mutually and alternately lapped.
In one embodiment, the method for connecting a graphite ground cable further comprises the following steps:
coating conductive adhesive on the connecting sheet, the wiring tube and the sleeve;
the connecting sheet and the sleeve are wrapped by graphite cloth;
and binding and fixing the graphite cloth by adopting a binding wire.
Drawings
FIG. 1 is a schematic view of a graphite ground cable connection device according to an embodiment;
FIG. 2 is a schematic structural view of a patch tube of the graphite ground cable connection assembly shown in FIG. 1;
FIG. 3 is a schematic structural view of a graphite grounding cable;
FIG. 4 is a top view of the graphite ground cable connection assembly shown in FIG. 1;
FIG. 5 is a left side view of the graphite ground cable connection assembly shown in FIG. 1;
FIG. 6 is a schematic diagram of a metal plate for use in making a graphite grounding cable connection device according to an embodiment;
fig. 7 is a schematic structural view of a graphite ground cable connection device according to another embodiment.
Description of reference numerals:
11. a wire connecting pipe; 114. a first lumen; 115. a second lumen; 116. a third lumen; 20. connecting sheets; 21. a metal sheet; 22. a protective film; 23. engraving; 30. a sleeve; 40. a graphite grounding cable; 41. graphite wires; 42. a metal wire; 50. and expanding the joint.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
Referring to fig. 1-3, the present embodiment provides a graphite grounding cable connection device for connecting two graphite grounding cables 40, so that the two graphite grounding cables 40 form a shielding wall. Specifically, the graphite ground cable connection assembly of one embodiment includes a connection tab 20 and a wire barrel 11. Wherein the terminal tube 11 is connected to the connection piece 20. The junction tube is provided with a first lumen 114 and a second lumen 115 that are spaced apart. The first lumen 114 is for receiving the graphite wire 41 of the graphite ground cable 40. The first lumen 114 is a circular cavity and is thus more suitable for graphite ground cables 40 that are circular in cross-section. The second lumen 115 is a crescent-shaped lumen, the second lumen 115 surrounds the first lumen, and the second lumen 115 is used for accommodating the metal wire 42 of the graphite grounding cable 40.
Referring to fig. 1, the graphite ground cable connection device further includes a sleeve 30, the sleeve 30 is sleeved outside the wire barrel 11, and a third lumen 116 is formed between the sleeve 30 and the wire barrel 11. The third lumen 116 is separated from the second lumen 115 and surrounds the second lumen 115, and the third lumen 116 is used for accommodating the graphite wire 41.
Specifically, as shown in fig. 3, the graphite ground cable 40 includes a plurality of graphite wires 41 and a metal wire 42 disposed between the two graphite wires 41. Before connecting the two graphite grounding cables 40, the ends of the two graphite grounding cables 40 to be connected are respectively stripped with a certain length of graphite woven cloth, and the metal wire 42 is drawn out, so that the graphite wire 41 of the graphite grounding cable 40 is separated from the metal wire 42. The graphite wires 41 of both graphite ground cables 40 are then inserted into the first lumen 114 of the patch tube and the graphite wires 41 of both graphite ground cables 40 are alternately lapped one over the other. The wire connecting pipe 11 is pressed to enable the cavity wall of the first cavity 114 to clamp the graphite wire 41, so that the graphite wires 41 of the two graphite grounding cables 40 are firmly connected. And then, the drawn metal wires 42 of the two graphite grounding cables 40 are smoothed and spread in the second tube cavity 115 of the wire connecting tube, and the wire connecting tube 11 is extruded to enable the cavity wall of the second tube cavity 115 to clamp the metal wires 42, so that the metal wires 42 of the two graphite grounding cables 40 are connected stably. Finally, the graphite wire 41 penetrating through the first tube cavity 114 is properly extended and extended, and is reversely bent and then inserted into the third tube cavity 116, and then the sleeve 30 is extruded, so that the sleeve 30 clamps the graphite wire 41, and the connection of the two graphite ground cables 40 is more stable.
The graphite grounding cable connecting device is characterized in that the first tube cavity 114 and the second tube cavity 115 which are separated from each other are formed in the wire connecting tube 11, so that the graphite wire 41 of the graphite grounding cable 40 can be arranged in the first tube cavity 114, the metal wire 42 of the graphite grounding cable 40 is arranged in the second tube cavity 115, the graphite wire 41 and the graphite wire 41 of the two graphite grounding cables 40 are directly connected, the metal wire 42 and the metal wire 42 are directly connected, the problem of failure of a shielding wall caused by hybrid connection of the graphite wire 41 and the metal wire 42 with different conductivity in a traditional crimping mode is avoided, the conductivity of the body of the graphite grounding cable 40 is not lower than that of the middle connecting part of the two graphite grounding cables 40, and the electromagnetic shielding performance of the shielding wall formed by connecting the graphite grounding cables 40 is improved. In addition, compare in the direct lapped connected mode of tradition, this application is through the crimping behind the graphite wire 41 reverse bending in first lumen 114 in third lumen 116, and then great improvement two graphite ground cables 40 connected tensile strength to and connection stability. Preferably, the sleeve 30 is a metal piece formed by integral bending.
Furthermore, the connecting sheet 20 and the wire connecting tube are made of metal materials with good conductivity. Preferably, the connecting piece 20 and the wire barrel 11 are integrally formed by a metal plate. As shown in fig. 6, a metal piece 21 is provided on the metal plate, and both sides of the metal piece 21 are bent to the middle of the metal piece 21 by a certain curvature, so that the metal piece 21 can be formed into a wire barrel.
Referring to fig. 4-5, specifically, there are at least two wire connecting tubes 11, each wire connecting tube 11 is connected to the connecting piece 20, and a sleeve 30 is sleeved outside each wire connecting tube 11. For example, as shown in fig. 4, the graphite earth cable connection device is provided with three terminal tubes 11, and a connecting piece 20 for connecting the three terminal tubes. Through set up a plurality of patch cords on connection piece 20 for a plurality of graphite grounding cable 40 can be connected simultaneously to graphite grounding cable connecting device, have improved graphite grounding cable connecting device utilization ratio, have reduced material cost.
Further, the wiring directions of the three wire barrel 11 are parallel or approximately parallel to the connecting piece 20, and the wiring directions of at least two of the wire barrels intersect. The direction of the wire barrel 11 is referred to as the direction of the graphite ground cable 40 through the barrel. For example, as shown in fig. 4, the wiring directions of two adjacent wiring pipes 11 are perpendicular to each other, and at least two wiring pipes 11 with intersecting wiring directions are used, so that the graphite grounding cable connection device can form a shielding wall with a mesh structure after being connected with the graphite grounding cable 40.
Further, referring to fig. 6, the cavity walls of the first lumen 114, the second lumen 115 and the third lumen 116 are all provided with anti-slip patterns 23, and the anti-slip patterns 23 are used for increasing the friction coefficient of the surface of the wire connecting tube, so as to prevent the graphite wires 41 and the metal wires 42 from falling out of the wire connecting tube. Preferably, the anti-slip pattern 23 is a wavy pattern 23 or a concave-convex structure. For example, as shown in fig. 6, before bending the metal sheet 21 to form the wire connecting tube, wavy sculptures 23 may be etched on both sides of the metal sheet 21, and after bending the metal sheet 21 to form the wire connecting tube, the cavity walls of the first lumen 114, the second lumen 115, and the third lumen 116 may form anti-slip sculptures formed by the wavy sculptures.
Further, referring to fig. 6, the graphite ground cable connection device may further include a protective film 22, and particularly, the protective film 22 is attached to the surface of the connection piece 20 and the surface of the wire barrel. As shown in fig. 6, before bending the metal plate, the front and back surfaces of the metal plate may be coated with the protective film 22, and after the metal plate is bent to form the connecting piece 20 for the wire connecting tube, the protective film 22 with a protective effect may be formed on the surface of the connecting piece 20 for the wire connecting tube. Preferably, the protective film 22 is a graphite film, which is uniformly applied to the surface of the tab 20 and the surface of the wire barrel. By coating the protective film 22 on the surface of the connecting piece 20 and the surface of the wiring tube, the corrosion resistance of the connecting piece 20 and the surface of the wiring tube is enhanced, so that the electrochemical corrosion problem caused by direct contact of the graphite wire 41 and the wiring tube is avoided, and the service life of the graphite grounding cable connecting device is prolonged.
Further, the graphite ground cable connection device may further include an outer sheath (not shown) covering the connecting piece 20 and the pipe sleeve 30 for further protecting the connecting piece 20 and the pipe sleeve 30 from corrosion. Specifically, the outer sheath includes graphite cloth and binding wires, the connecting sheet 20, the wire connecting tube 11 and the pipe sleeve 30 are further coated with conductive adhesive, and preferably, the conductive adhesive is coated on the edges and the bent parts of the wire connecting tube and the weak parts with corrosion resistance such as extrusion notches. Further, the graphite cloth is adhered with the conductive adhesive, so that the graphite cloth is tightly wrapped outside the connecting piece 20 and the pipe sleeve 30. The binding wire is used for binding the graphite cloth and sewing the opening of the graphite cloth, so that the graphite cloth is integrally bound firmly. The outer sheath is coated outside the connecting sheet 20 and the wiring pipe, so that the overall corrosion resistance of the graphite grounding cable connecting device is improved.
Further, referring to fig. 7, the graphite ground cable connection device may further include an expansion joint 50, the expansion joint 50 is connected to the connection piece 20, and the expansion joint 50 is used for connecting a third party device, for example, the expansion joint 50 is used for connecting a galvanized round steel ground or a copper bar down conductor. Preferably, the expansion joint 50 is a metal sheet 21, and the expansion joint 50 and the connecting sheet 20 are integrally formed. Preferably, the expansion joint 50 is coplanar with the connecting tab 20. Through reserving a sheetmetal 21 on connection piece 20 as expansion joint 50 to can be through the articulate of expansion joint 50 with third party's equipment, and then avoided graphite earth connection cable 40 lug connection third party's equipment to lead to graphite earth connection cable 40 electric property decline problem, improved the stability of shielding wall.
Further, the present application also provides a graphite ground cable connection method using the graphite ground cable connection device according to any one of the above embodiments, specifically, the graphite ground cable connection method according to an embodiment includes the following steps:
and S110, respectively stripping the ends of the two graphite grounding cables 40 to be connected, and separating the graphite wires 41 and the metal wires 42 of the graphite grounding cables 40.
Specifically, as shown in fig. 3, the graphite ground cable 40 includes a plurality of graphite wires 41 and a metal wire 42 disposed between the two graphite wires 41. Before connecting the two graphite grounding cables 40, the ends of the two graphite grounding cables 40 to be connected are respectively stripped with a certain length of graphite woven cloth, and the metal wire 42 is drawn out, so that the graphite wire 41 of the graphite grounding cable 40 is separated from the metal wire 42.
S120, inserting the graphite wires 41 of the two graphite grounding cables 40 into the first tube cavity 114 of the wire connecting tube, and extruding the wire connecting tube 11 to enable the cavity wall of the first tube cavity 114 to clamp 1 the graphite wires 41
Specifically, the graphite wires 41 of the two graphite ground cables 40 are overlapped alternately, so that the connection of the graphite wires 41 of the two graphite ground cables 40 is more stable.
S130, inserting the metal wires 42 of the two graphite grounding cables 40 into the second lumen 115 of the wire connecting tube, and pressing the wire connecting tube 11 to enable the cavity wall of the second lumen 115 to clamp the metal wires.
Preferably, the wire 42 drawn from the two graphite ground cables 40 needs to be smoothed and then laid flat within the second lumen 115 of the junction tube.
S140: a pipe sleeve 30 is sleeved outside the wire connecting pipe 11, so that a third pipe cavity 116 is formed between the pipe sleeve 30 and the wire connecting clamp 11;
s150: the graphite wire 41 in the first lumen 114 is extended and bent and then inserted into the third lumen 116, and the tube sleeve 30 is extruded, so that the graphite wire 41 is clamped by the lumen wall of the third lumen 116.
And S160, wrapping an outer sheath outside the pipe sleeve 30 and the connecting sheet 20.
Specifically, the outer sheath comprises graphite cloth and a binding wire, conductive adhesive is coated on the connecting piece 20, the edges and the bent parts of the wire connecting tube 11 and the pipe sleeve 30 and on the weak corrosion-resistant parts such as extrusion notches before the outer sheath is wrapped, and then the graphite cloth is wrapped outside the wire connecting tube and the connecting piece to be bonded with the conductive adhesive, so that the graphite cloth tightly wraps the connecting piece 20 and the wire connecting tube. And finally, binding the graphite cloth by using a binding wire and sewing the opening of the graphite cloth, so that the graphite cloth is integrally and firmly bound.
According to the graphite grounding cable connecting method, the graphite wire 41 of the graphite grounding cable 40 is arranged in the first cavity 114 of the junction box, and the metal wire 42 of the graphite grounding cable 40 is arranged in the second cavity 115 of the junction box, so that the graphite wire 41 and the graphite wire 41 of the two graphite grounding cables 40 are directly connected, the metal wire 42 and the metal wire 42 are directly connected, the problem of failure of a shielding wall caused by hybrid connection of the graphite wire 41 and the metal wire 42 with different conductive properties in a traditional crimping mode is solved, the conductive property of the middle connecting part of the two graphite grounding cables 40 is not lower than that of the body of the graphite grounding cable 40, and the electromagnetic shielding property of the shielding wall formed by connecting the graphite grounding cables 40 is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A graphite ground cable connection device, comprising:
connecting sheets;
the wiring pipe is connected with the connecting piece and provided with a first pipe cavity and a second pipe cavity which are separated from each other, the first pipe cavity is a circular cavity, the second pipe cavity is arranged around the outside of the first pipe cavity, the first pipe cavity is used for accommodating a graphite wire of a graphite grounding cable, and the second pipe cavity is used for accommodating a metal wire of the graphite grounding cable; and the number of the first and second groups,
the sleeve is sleeved outside the wiring pipe, a third pipe cavity is formed between the sleeve and the wiring pipe, the third pipe cavity and the second pipe cavity are separated and enclosed outside the second pipe cavity, and the third pipe cavity is used for containing the graphite wire.
2. The graphite earth cable connection device of claim 1, wherein there are at least two of the wire tubes, each of the wire tubes is connected to the connecting plate, each of the wire tubes is sleeved with the sleeve, the wire direction of each of the wire tubes is parallel or approximately parallel to the connecting plate, and the wire direction of at least two of the wire tubes intersects.
3. The graphite ground cable connection device of claim 1, wherein the walls of the first, second and third lumens are provided with anti-slip cuts.
4. The graphite ground cable connection device of claim 1, further comprising a graphite film uniformly applied to the surface of the connecting sheet, the wall of the first lumen, the wall of the second lumen, and the wall of the third lumen.
5. The graphite ground cable connection device of claim 1, further comprising an expansion joint, wherein the expansion joint is connected with the connection piece, and wherein the expansion joint is used for connecting third party equipment.
6. The graphite grounding cable connecting device according to claim 1, further comprising an outer sheath, wherein the outer sheath comprises a graphite cloth and a binding wire, the connecting sheet, the wire connecting tube and the sleeve are further coated with a conductive adhesive, the graphite cloth is coated outside the connecting sheet and the sleeve and is adhered with the conductive adhesive, and the binding wire is used for binding the graphite cloth.
7. A graphite earth cable connection device according to claim 1, wherein the wire barrel and the bushing are each an integrally bent metal piece.
8. A graphite grounding cable connecting method is characterized by comprising the following steps:
providing a graphite earth cable connection device according to any one of claims 1-7;
respectively stripping the end parts of two graphite grounding cables to be connected, and separating the graphite wires of the graphite grounding cables from the metal wires;
inserting the graphite wires of the two graphite grounding cables into a first tube cavity of the wiring tube, extruding the wiring tube, and enabling the wall of the first tube cavity to clamp the graphite wires
Inserting the metal wires of the two graphite grounding cables into a second tube cavity of the wire connecting tube, and extruding the wire connecting tube to enable the wall of the second tube cavity to clamp the metal wires;
sleeving a sleeve outside the wiring pipe to form a third pipe cavity between the sleeve and the wiring pipe;
and extending and bending the graphite wire in the first tube cavity, inserting the graphite wire into the third tube cavity, and extruding the sleeve to enable the wall of the third tube cavity to clamp the graphite wire.
9. The graphite grounding cable connection method of claim 8, further comprising the steps of:
when the graphite wires of the two graphite grounding cables are inserted into the first tube cavity of the wiring tube, the graphite wires of the two graphite grounding cables are mutually and alternately lapped.
10. The graphite grounding cable connection method of claim 8, further comprising the steps of:
coating conductive adhesive on the connecting sheet, the wiring tube and the sleeve;
the connecting sheet and the sleeve are wrapped by graphite cloth;
and binding and fixing the graphite cloth by adopting a binding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911147144.9A CN110957589A (en) | 2019-11-21 | 2019-11-21 | Graphite grounding cable connecting device and graphite grounding cable connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108418004A (en) * | 2018-04-28 | 2018-08-17 | 深圳供电局有限公司 | A kind of template bilayer crimping intermediate connector |
| CN108429019A (en) * | 2018-04-28 | 2018-08-21 | 深圳供电局有限公司 | A kind of lamination of Based on Dual-Aperture five connection device |
| CN108598719A (en) * | 2018-05-01 | 2018-09-28 | 深圳供电局有限公司 | One kind three is laminated connection device |
| CN207994108U (en) * | 2018-04-13 | 2018-10-19 | 深圳供电局有限公司 | A kind of cast bilayer crimping intermediate connector |
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| JPH0244665A (en) * | 1988-08-04 | 1990-02-14 | Sumitomo Electric Ind Ltd | Electric wiring parts and treating method for electric conductor terminal |
| CN102611067A (en) * | 2012-03-21 | 2012-07-25 | 哈尔滨理工大学 | High-voltage cable flexible joint with non-linear shielding layers |
| EP2712853A1 (en) * | 2012-10-01 | 2014-04-02 | Dantonit A/S | A powder composition and slurry for preparing heat conducting materials |
| CN107910671A (en) * | 2017-11-01 | 2018-04-13 | 国网辽宁省电力有限公司检修分公司 | The method of the flexible excessively gold utensil of plain conductor and flexible excessively gold utensil repairing counterpoise grounding |
| CN207994108U (en) * | 2018-04-13 | 2018-10-19 | 深圳供电局有限公司 | A kind of cast bilayer crimping intermediate connector |
| CN108418004A (en) * | 2018-04-28 | 2018-08-17 | 深圳供电局有限公司 | A kind of template bilayer crimping intermediate connector |
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Application publication date: 20200403 |