CN115407469A - Bipolar cable joint box - Google Patents
Bipolar cable joint box Download PDFInfo
- Publication number
- CN115407469A CN115407469A CN202211050916.9A CN202211050916A CN115407469A CN 115407469 A CN115407469 A CN 115407469A CN 202211050916 A CN202211050916 A CN 202211050916A CN 115407469 A CN115407469 A CN 115407469A
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- Prior art keywords
- cable
- bipolar
- pressure cylinder
- hole
- fiber coiling
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- 239000004020 conductor Substances 0.000 claims abstract description 57
- 239000000835 fiber Substances 0.000 claims abstract description 35
- 239000013307 optical fiber Substances 0.000 claims abstract description 15
- 230000000712 assembly Effects 0.000 claims abstract description 9
- 238000000429 assembly Methods 0.000 claims abstract description 9
- 238000001746 injection moulding Methods 0.000 claims description 18
- 239000012212 insulator Substances 0.000 claims description 11
- 238000002788 crimping Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 11
- 230000003287 optical effect Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000004891 communication Methods 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/506—Underwater installation
Abstract
A bipolar cable joint box belongs to the field of submarine optical cable communication. The cable end device comprises a fiber coiling disc, a pressure cylinder, two end covers, two cable end assemblies and a plurality of conducting wires. Specifically, the method comprises the following steps: the fiber coiling disc is positioned in the pressure cylinder and used for storing the melting point of the optical fibers so as to weld the two optical fibers; the pressure cylinder is in a hollow cylinder shape with two open ends, and the two end covers are respectively and fixedly connected to the two ends of the pressure cylinder; the two cable end components are respectively and fixedly connected with the central hole of the end cover; the inner conductor layers of the two bipolar cables are conducted through the pressure cylinder, the end covers at the two ends of the pressure cylinder and the cable end assemblies; the wire crosses the pressure cylinder, and the outer conductor layer of two bipolar cables is connected respectively to the both ends of wire. The invention provides sealing, insulation and mechanical protection for the connection of the bipolar cable, and solves the problem that the conventional submarine joint box cannot adapt to the bipolar cable.
Description
Technical Field
The invention relates to a submarine joint box capable of adapting to a bipolar cable, and belongs to the field of submarine optical cable communication.
Background
As shown in fig. 1, the bipolar cable 1 is a submarine cable capable of transmitting two different polarities or voltages in the same submarine cable, and the submarine cable is additionally provided with an outer conductor layer 16 on the basis of a common submarine cable, and the outer conductor layer and the original inner conductor layer 14 are insulated from each other, so that the submarine cable can be used for simultaneously supplying power to two instruments requiring different voltages.
The submarine optical cable communication system uses a large number of splice boxes, and the splice boxes refer to joints which are used for connecting two sections of submarine cables by using special structural members and tools and are used for maintaining and repairing various submarine cables in the submarine optical cable communication system. Due to the particularities of the subsea environment, 25 year operational life of the closure is required. In order to achieve high reliability, the joint box needs to consider the design of high water pressure resistance, hydrogen sealing, small volume, convenient laying and the like.
However, most splice closures are designed based on the existing single-conductor-layer submarine cable, and cannot meet the requirements of simultaneous optical fiber fusion and connection of two conductor layers of a bipolar cable, so that the bipolar cable cannot be used for a long distance in a submarine optical cable communication system.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the problem that no connector box capable of adapting to a bipolar cable exists at present.
To achieve this, the invention provides a subsea closure that can accommodate a bipolar cable.
The technical scheme adopted by the invention is as follows:
a bipolar cable joint box comprises a fiber coiling disc, a pressure cylinder, two end covers, two cable end assemblies and a plurality of conducting wires. Specifically, the method comprises the following steps:
the fiber coiling disc is positioned in the pressure cylinder and used for storing the melting point of the optical fiber so as to weld the optical fibers of the bipolar cables at two ends; the pressure cylinder is in a hollow cylinder shape with two open ends, and the two end covers are fixedly connected to the two ends of the pressure cylinder respectively; the two cable end components are respectively and fixedly connected with the central hole of the end cover; the inner conductor layers of the two bipolar cables are conducted through the pressure cylinder, the end covers at the two ends of the pressure cylinder and the cable end assemblies; the wire crosses the pressure cylinder, and the outer conductor layer of two bipolar cables is connected respectively to the both ends of wire.
By adopting the scheme, the cable end assembly is respectively connected with two adjacent bipolar cables, optical fibers of the bipolar cables enter the fiber coiling disc inside the pressure cylinder through the inner hole of the cable end assembly to be welded, the inner conductor layers of the bipolar cables are contacted with the inner armor steel wire, the inner armor steel wire is contacted with the cable end assembly to realize photoelectric separation of the cable end, meanwhile, the inner conductor layers of the two bipolar cables are communicated through the contact of the inner armor steel wire, the cable end assembly, the end cover, the pressure cylinder, the end cover, the cable end assembly and the inner armor steel wire, and the outer conductor layers of the two bipolar cables are communicated through the contact of conducting wires.
Furthermore, the pressure cylinder is externally sleeved with an insulating sleeve, the wall thickness (axial direction) of the insulating sleeve is at least provided with 1 penetrating wire hole for a wire to pass through, so that the wire can pass through the corresponding wire hole, and the two ends of the wire are respectively led out to be connected with the outer conductor layers of the two bipolar cables.
Furthermore, the outer side end of the cable end component is fixedly connected with a cable end insulating part, the cable end insulating part is sleeved outside the outer conductor layer and the inner insulating layer, and the inner conductor layer penetrates through the cable end insulating part to insulate the inner conductor layer and the outer conductor layer of the bipolar cable end and prevent short circuit. The cable end insulator is provided with a wire groove for a lead to pass through so as to position the leading-out end of the lead and enable the leading-out end to be better connected with an outer conductor layer.
Furthermore, two sections of injection molding bodies are respectively positioned on two sides of the insulating sleeve, and each section of injection molding body extends to the outer insulating layer of the bipolar cable on the same side from the end part of the insulating sleeve.
The wire is wrapped inside the injection molding body at the outer part (leading-out end) of the insulating sleeve, so that the inner conductor layer and the outer conductor layer are insulated from each other; the injection molding body, the bipolar cable outer insulating layer and the insulating sleeve form an integrated sealing structure, and the insulativity and the sealability of the joint box are guaranteed.
Further, the conducting wire comprises a conductive body and an insulating sheath, the insulating sheath of the conducting wire can be a material which can bear 15kV of minimum voltage and can not melt in the environment of 300 ℃, and the insulating sheath of the conducting wire can also be the same material as the injection molding body; alternatively, the conducting wire is a bare wire. The lead is connected with the outer conductor layer of the double-stage cable in a welding mode, a mechanical structure connection mode or a heat-resistant elastic sleeve connection mode.
Furthermore, a counter bore is formed in the inner side end of the end cover and is connected with the center hole of the end cover to form a whole; the cable end assembly is characterized in that a large-diameter boss (matched with the inner diameter of the counter bore) is arranged at the inner side end of the cable end assembly, a round table (matched with the inner diameter of the counter bore) is arranged at the end part of the coiled fiber disc, and the large-diameter boss for tightly pressing the cable end assembly is arranged in the counter bore of the end cover. An end cover boss is arranged at the inner side end of the end cover, the outer diameter of the end cover boss is matched with the inner diameter of the pressure cylinder, and the end cover boss is arranged in the pressure cylinder. By the design, the end parts of the cable end assembly, the end cover, the fiber coiling disc and the pressure cylinder can be mutually matched in a limiting way.
The end part of the fiber coiling disc is provided with two symmetrically arranged screw holes, and the corresponding position of the end cover is provided with a screw through hole; and fixing screws penetrate through the screw through holes of the end cover and are screwed in the screw holes corresponding to the fiber coiling plate, so that the end cover is fixedly connected with the fiber coiling plate. The end cover is provided with long bolt through holes and bolt holes which are symmetrically arranged, and the long bolts penetrate through the long bolt through holes of the end cover and are screwed with the bolt holes of the other end cover, so that the end cover, the pressure cylinder, the fiber coiling disc and the cable end assembly are fixedly connected into a whole.
Furthermore, the inner armor steel wire of the bipolar cable extends into an inner hole of the cable end component, the inner armor steel wire is connected with the cable end component in a compression joint mode, the cable end component is contacted with the pressure barrel through the end cover, and inner conductor layers of the two bipolar cables are communicated through the inner armor steel wire, the cable end component, the end cover and the pressure barrel.
The innovation points of the invention are as follows:
1. connecting the outer conductor layers of the two bipolar cables by using a lead so as to insulate the inner conductor layer from the outer conductor layer;
2. the insulating sleeve with the wire hole is used for passing through a wire, and the wire can be passed through without changing the existing injection molding equipment;
3. insulation between the inner conductor layer and the outer conductor layer and insulation between the lead and the outside are ensured by selecting a lead insulation layer material;
4. the special fixing mode ensures that the lead cannot be loosened from the outer conductor layer to cause disconnection during injection molding.
According to the invention, the inner conductor layer of the bipolar cable is connected through the inner armor steel wire, the cable end assembly, the end cover and the pressure cylinder, the outer conductor layer of the bipolar cable penetrates through the insulating sleeve through the conducting wire to be connected, and two circuits are mutually insulated. The invention provides sealing, insulation and mechanical protection for the connection of the bipolar cable, and solves the problem that the conventional submarine joint box cannot adapt to the bipolar cable.
Drawings
FIG. 1 is a schematic view of a bipolar cable construction;
FIG. 2 is a schematic axial sectional view of the closure of the present invention;
FIG. 3 is a schematic view of the structure of the insulating sleeve of the present invention;
FIG. 4 is a schematic view of the end cap of the present invention;
FIG. 5 is a schematic view of a cable end insulator according to the present invention;
FIG. 6 is a schematic view of the cable end and end cap connection of the present invention;
FIG. 7 is a schematic view of the injection molding of the closure of the present invention;
fig. 8 is an exploded view of the splice enclosure of the present invention;
fig. 9 is an exploded view of the splice enclosure of the present invention (with the pressure barrel and insulating sleeve removed);
FIG. 10 is an enlarged view of a portion of FIG. 9;
FIG. 11 is an enlarged view of a portion of FIG. 9;
FIG. 12 is a schematic view of the connection of the cable end insulator of the present invention to a bipolar cable;
in the figure: 1 bipolar cable, 11 optical fiber, 12 metal tube, 13 inner armor steel wire, 14 inner conductor layer, 15 inner insulating layer, 16 outer conductor layer and 17 outer insulating layer; the fiber coiling disc 2, the round table 21 and the screw hole 22; a pressure cylinder 3; the end cover 4, a central hole 41, a counter bore 42, a long bolt through hole 43, a bolt hole 44, a bolt through hole 45, an end cover boss 46, a fixing bolt 47 and a long bolt 48; a cable end component 5, an inner hole 51 and a large-diameter boss 52; a wire 6; cable end insulator 7, wire groove 71; the insulating sleeve 8, the wire guide 81; a heat-resistant elastic sleeve 9; an injection molded body 10; an injection mold 100; and a seal ring 101.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the dual-stage cable 1 is a special submarine optical cable, which comprises, from inside to outside, an optical fiber 11, a metal tube 12, an inner armor wire 13, an inner conductor layer 14, an inner insulation layer 15, an outer conductor layer 16, and an outer insulation layer 17. Optical fiber is responsible for transmitting optical signals, the metal tube separates optical fiber from the outside, the inner armor steel wire protects the optical fiber from being influenced by external tension, the inner insulating layer insulates the inner conductor layer and the outer conductor layer from each other, so that the inner conductor layer and the outer conductor layer can pass through currents with different polarities, and the outer insulating layer is responsible for insulating the whole submarine optical cable.
Generally, the submarine optical cable needs to be connected with optical signals and electric signals separately, and then the submarine optical cable is wrapped by a sealing structure to ensure water tightness and insulation. The joint box capable of adapting to the double-stage cables provided by the embodiment has the functions of connecting the two double-stage cables and providing protection.
As shown in fig. 2, a bipolar cable splice closure includes a fiber reel 2, a pressure cylinder 3, two end caps 4, two cable end assemblies 5, and a plurality of wires 6. The fiber coiling disc 2 is positioned in the pressure cylinder 3, the pressure cylinder 3 is in a hollow cylinder shape with two open ends, and the two end covers 4 are respectively fixedly connected with two ends of the pressure cylinder; the two cable end assemblies 5 are respectively and fixedly connected to the central hole 41 of the end cover, and the outer side ends of the cable end assemblies are fixedly connected with cable end insulators 7.
The inner conductor layers 15 of the two bipolar cables penetrate through the cable end insulator 7 and the cable end assembly 5 and are conducted through the pressure cylinder 3, the end covers 4 at two ends of the pressure cylinder and the cable end assembly 5; the optical fiber 11 is drawn out of the inner conductor layer 15, enters the pressure cylinder, and is fusion-spliced by the fiber coiling disc 2 in the pressure cylinder.
The inner conductor layer 14 and the inner armor steel wire 13 extend into the inner hole 51 of the cable end component 5, the inner armor steel wire is connected with the cable end component in a crimping mode, and the inner conductor layers of the bipolar cables at the two ends are communicated through the inner armor steel wire, the cable end component, the end cover, the pressure cylinder, the end cover, the cable end component and the inner armor steel wire.
The pressure cylinder overcoat is equipped with insulating sleeve 8, and as shown in fig. 3, the wall thickness axial of insulating sleeve 8 is equipped with 4 wire holes 81 that link up, supply the wire to pass, can prevent like this that the single wire is unexpected to drop and cause the problem of whole circuit open circuit in the in-process of moulding plastics.
As shown in fig. 5, the cable terminal insulator 7 is provided with a slot 71 through which a wire passes so as to position a lead-out terminal of the wire. The both ends of wire are drawn forth from the wire guide respectively to fix a position through wire casing 71, connect the outer conductor layer of two bipolar cables again, use heat-resisting elastic sleeve 9 to fix the wire tip on bipolar cable outer conductor layer at last, prevent that the wire is in incorrect condition when moulding plastics.
Example 2
On the basis of the embodiment 1, as shown in fig. 4, the inner end of the end cover is provided with a counter bore 42 which is connected and penetrated with the central hole 41 of the end cover into a whole. The end cover is provided with 1 long bolt through hole 43, 1 bolt hole 44 and two screw through holes 45 which are uniformly distributed.
As shown in fig. 6, an end cover boss 46 is provided at the inner end of the end cover 4, the outer diameter of the end cover boss matches the inner diameter of the pressure cylinder, and the end cover boss is disposed in the pressure cylinder. The inner end of the cable end assembly 5 is provided with a large-diameter boss 52 matched with the inner diameter of the counter bore 42, the end of the fiber coiling disc 2 is provided with a circular table 21 matched with the inner diameter of the counter bore 42, and the circular table 21 presses the large-diameter boss 52 of the cable end assembly to be installed in the counter bore 42 of the end cover.
The end part of the fiber coiling disc 2 is provided with two screw holes 22 which are symmetrically arranged, and a fixing screw 47 passes through a screw through hole 45 of the end cover 4 and is screwed in the screw hole 22 corresponding to the fiber coiling disc, so that the end cover is fixedly connected with the fiber coiling disc. The end cover, the pressure cylinder and the fiber coiling disc are fixedly connected into a whole by using a long bolt 48 to penetrate through a long bolt through hole 43 of the end cover and to be screwed with a bolt hole 44 of the other end cover.
Example 3
On the basis of embodiment 1 or 2, as shown in fig. 7, two injection-molded bodies 10 are respectively located on both sides of the insulating sleeve, and each injection-molded body extends from the end of the insulating sleeve to the outer insulating layer 17 of the bipolar cable on the same side.
After the structure is completed, the product is placed in a groove of an injection mold 100, and the injection mold can be a common general joint box injection mold or a special mold; after the die is closed, the die is injected by using the same material as the insulating sleeve; after the injection molding is finished, the insulating sleeve, the injection molding body 10 and the outer insulating layer 16 of the bipolar cable form an injection molding whole, and the injection molding whole plays roles in insulating the inner conductor layer and the outer conductor layer of the bipolar cable and preventing water and insulating the whole joint box.
Example 4
On the basis of embodiment 3, a method for manufacturing a two-stage cable joint box comprises the following steps:
1) An insulating sleeve 8 is sleeved outside the pressure cylinder 3, the lead 6 penetrates through a lead hole 81 of the insulating sleeve 8, and two ends of the lead are led out;
2) Sequentially enabling one bipolar cable end to pass through a cable end insulator 7, a cable end component 5, an end cover 4 and a pressure cylinder 3, and sequentially enabling the other bipolar cable end to pass through the cable end insulator 7, the cable end component 5 and the end cover 4; leading the optical fiber 11 out of the metal tube 12; the two optical fibers are welded on the fiber coiling disc 2;
3) Placing the fiber coiling disc 2 in the pressure cylinder 3, and enabling the circular truncated cone 21 at the end part of the fiber coiling disc 2 to correspond to the screw hole of the large-diameter boss 52 of the cable end assembly 5 and connecting and fixing the circular truncated cone and the screw hole by adopting a bolt;
the circular truncated cone 21 at the end part of the fiber coiling disc 2 is pressed against the large-diameter boss 52 of the cable end assembly 5 and is limited and installed in the counter bore 42 of the end cover 4, and meanwhile, the end cover boss 46 is arranged in the pressure cylinder, so that the end cover is limited and matched with the pressure cylinder;
4) Fixing screws 47 penetrate through screw through holes 45 of the end cover 4 and are screwed in corresponding screw holes 22 of the fiber coiling disc, so that the end cover is fixedly connected with the fiber coiling disc; the long bolt 48 penetrates through the long bolt through hole 43 of the end cover and is screwed with the bolt hole 44 of the other end cover, and the two end covers are clamped and fixed at two ends of the pressure cylinder and the fiber coiling disc, so that the end cover, the pressure cylinder, the fiber coiling disc and the cable end assembly are fixedly connected into a whole; meanwhile, sealing rings 101 are arranged between the end cover and the pressure cylinder and between the cable end assembly and the pressure cylinder.
5) The inner armor steel wire 13 of the cable end is fixed in an inner hole 51 of the cable end component 5 in a compression joint mode, and the inner conductor layer 14 is in contact with the inner armor steel wire 13;
6) As shown in fig. 12, a step is formed between the inner insulating layer 15 and the outer conductor layer 16 of the cable end, the inner insulating layer, the step and the outer conductor layer are crimped in the inner hole of the cable end insulating member, and the cable end insulating member is fixed at the outer end of the cable end assembly;
7) Leading out two ends of a lead 6 from lead holes respectively, fixing the lead on the outer side wall of a cable end assembly by adopting a heat-resistant elastic sleeve 9 when the lead passes through the cable end assembly, clamping the lead in a wire groove 71 of the cable end insulation when the lead passes through the cable end insulation, then connecting the lead with an outer conductor layer 16 of a cable end, and finally fixing the end part of the lead with the outer conductor layer 16 by using the heat-resistant elastic sleeve 9;
8) Placing the junction box into a groove of an injection mold 100, arranging an injection molding body 10 between the end part of the insulating sleeve and an outer insulating layer of the cable end, and placing a lead inside the injection molding body; and the insulating sleeve is made of the same material as the insulating sleeve by injection molding, after the injection molding is finished, the insulating sleeve, the injection molded body 10 and the outer insulating layer form a sealing body, and the lead 6, the inner conductor layer 14 and the outer conductor layer 15 of the double-stage cable are protected in a sealing manner.
In conclusion, the submarine joint box suitable for the double-stage cables provided by the invention realizes independent butt joint of electric signals between the two double-stage cables and electric signals on the inner and outer conductors, meets the requirements of insulation and water resistance, can be injected by using a mold of the conventional joint box, and saves the cost for manufacturing the mold again.
In the above description, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in this application, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A bipolar cable splice closure, comprising:
the fiber coiling disc is used for welding two optical fibers;
the pressure cylinder is in a hollow cylinder shape with two open ends; the fiber coiling disc is positioned in the pressure cylinder;
two end covers are arranged and are respectively and fixedly connected to two ends of the pressure cylinder;
two cable end components are arranged and are respectively and fixedly connected with the central hole of the end cover; the inner conductor layers of the two bipolar cables are conducted through the pressure cylinder, the end covers at the two ends of the pressure cylinder and the cable end assemblies;
and the conducting wire stretches across the outside of the pressure cylinder, and two ends of the conducting wire are respectively connected with the outer conductor layers of the two bipolar cables.
2. A bipolar cable splice enclosure according to claim 1, further comprising:
the insulating sleeve is sleeved outside the pressure cylinder; the wall thickness of the insulating sleeve is provided with at least 1 wire hole along the axial direction.
3. A bipolar cable splice enclosure according to claim 2, further comprising:
and two cable end insulators are respectively fixedly connected with the outer side ends of the cable end assemblies.
4. A connector for a bipolar cable as claimed in claim 3, wherein the cable end insulator has a slot for the passage of a conductor.
5. A bipolar cable splice closure according to claim 3 or claim 4, further comprising:
the injection molding body is provided with two sections which are respectively positioned at two sides of the insulating sleeve; each section of injection molding body extends to the outer insulating layer of the bipolar cable on the same side from the end part of the insulating sleeve.
6. The bipolar cable joint box according to claim 1 or 4, wherein the end of the fiber coiling disc is provided with a screw hole, and the corresponding position of the end cover is provided with a screw through hole;
and fixing screws penetrate through the screw through holes of the end cover and are screwed in the screw holes corresponding to the fiber coiling plate, so that the end cover is fixedly connected with the fiber coiling plate.
7. A bipolar cable splice closure as claimed in claim 6, wherein the inner end of said end cap has an end cap boss, the outer diameter of said end cap boss matching the inner diameter of said pressure vessel, and said end cap boss being received within said pressure vessel.
8. A bipolar cable junction box according to claim 7, wherein the inner armour wires of said bipolar cable extend into the inner bore of the cable end assembly to connect the inner conductor layer to the cable end assembly by crimping.
9. The bipolar cable joint box according to claim 8, wherein the inner end of the end cap is provided with a counter bore, and the counter bore is communicated with the central hole of the end cap;
the cable end assembly is characterized in that a large-diameter boss is arranged at the inner side end of the cable end assembly, a round table is arranged at the end part of the fiber coiling disc, and the round table tightly presses the large-diameter boss of the cable end assembly to be installed in a counter bore of the end cover.
10. A bipolar cable joint box according to claim 9, wherein the end cap is provided with a long bolt through hole and a bolt hole, and the long bolt passes through the long bolt through hole of the end cap and is screwed with the bolt hole of the other end cap, thereby fixedly connecting the end cap, the pressure cylinder and the fiber coiling disc into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211050916.9A CN115407469A (en) | 2022-08-31 | 2022-08-31 | Bipolar cable joint box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211050916.9A CN115407469A (en) | 2022-08-31 | 2022-08-31 | Bipolar cable joint box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115407469A true CN115407469A (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211050916.9A Pending CN115407469A (en) | 2022-08-31 | 2022-08-31 | Bipolar cable joint box |
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| Country | Link |
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| CN (1) | CN115407469A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117092770A (en) * | 2023-10-18 | 2023-11-21 | 江苏亨通海洋光网系统有限公司 | Bipolar submarine optical cable joint box |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040196529A1 (en) * | 2002-12-13 | 2004-10-07 | Young Mark K. | Method and apparatus for electrically isolating an optical amplifier module housed in a universal cable joint |
| US20050013563A1 (en) * | 2003-07-15 | 2005-01-20 | George Woodruff | Electroluminescent cable connector |
| CN102812390A (en) * | 2010-02-01 | 2012-12-05 | 泰科电子海底通信有限责任公司 | Coupling multiple conductor undersea optical cables to an undersea device with an isolated bypass conductive path across the undersea device |
| CN113885151A (en) * | 2021-10-28 | 2022-01-04 | 中航宝胜海洋工程电缆有限公司 | Sea-land joint box for low-temperature environment and installation method |
| CN114068097A (en) * | 2021-12-07 | 2022-02-18 | 江苏通光海洋光电科技有限公司 | Coaxial bipolar submarine optical cable |
| CN217133431U (en) * | 2021-11-29 | 2022-08-05 | 中航宝胜海洋工程电缆有限公司 | A splice box for submarine communication system |
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2022
- 2022-08-31 CN CN202211050916.9A patent/CN115407469A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040196529A1 (en) * | 2002-12-13 | 2004-10-07 | Young Mark K. | Method and apparatus for electrically isolating an optical amplifier module housed in a universal cable joint |
| US20050013563A1 (en) * | 2003-07-15 | 2005-01-20 | George Woodruff | Electroluminescent cable connector |
| CN102812390A (en) * | 2010-02-01 | 2012-12-05 | 泰科电子海底通信有限责任公司 | Coupling multiple conductor undersea optical cables to an undersea device with an isolated bypass conductive path across the undersea device |
| CN113885151A (en) * | 2021-10-28 | 2022-01-04 | 中航宝胜海洋工程电缆有限公司 | Sea-land joint box for low-temperature environment and installation method |
| CN217133431U (en) * | 2021-11-29 | 2022-08-05 | 中航宝胜海洋工程电缆有限公司 | A splice box for submarine communication system |
| CN114068097A (en) * | 2021-12-07 | 2022-02-18 | 江苏通光海洋光电科技有限公司 | Coaxial bipolar submarine optical cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117092770A (en) * | 2023-10-18 | 2023-11-21 | 江苏亨通海洋光网系统有限公司 | Bipolar submarine optical cable joint box |
| CN117092770B (en) * | 2023-10-18 | 2023-12-22 | 江苏亨通海洋光网系统有限公司 | Bipolar submarine optical cable joint box |
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