CN117831849B - Aluminum alloy cable or optical cable with cross unit - Google Patents
Aluminum alloy cable or optical cable with cross unit Download PDFInfo
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- CN117831849B CN117831849B CN202410244473.XA CN202410244473A CN117831849B CN 117831849 B CN117831849 B CN 117831849B CN 202410244473 A CN202410244473 A CN 202410244473A CN 117831849 B CN117831849 B CN 117831849B
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 44
- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- 239000011241 protective layer Substances 0.000 claims abstract description 133
- 239000004020 conductor Substances 0.000 claims abstract description 83
- 230000005540 biological transmission Effects 0.000 claims abstract description 82
- 239000010410 layer Substances 0.000 claims description 211
- 239000013307 optical fiber Substances 0.000 claims description 85
- 230000003014 reinforcing effect Effects 0.000 claims description 47
- 230000001681 protective effect Effects 0.000 claims description 22
- 230000002787 reinforcement Effects 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 239000003351 stiffener Substances 0.000 description 27
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The invention belongs to the technical field of cables, and particularly relates to an aluminum alloy cable with a cross unit, which is provided with a cable core, wherein the cable core is provided with a second electric conductor of aluminum alloy, and is characterized in that: the cable core is provided with a cross unit outside, the cross unit is composed of four outer protective layers, four first butterfly units and an inner protective layer, the cable core is positioned in the inner protective layer in the same cross section, the four first butterfly units are fixed on the periphery of the inner protective layer, two ends of two adjacent outer protective layers are connected in a clockwise direction, the connection parts are connected with the corresponding first butterfly units, a transmission unit is arranged between the outer protective layers and the inner protective layer, and the transmission unit is provided with a second electric conductor of aluminum alloy; the invention has the beneficial effects of high production efficiency, mutually independent transmission units, convenient stripping, convenient heat dissipation, good mechanical property, expandability and the like; the invention also discloses an optical cable with the cross unit.
Description
Technical Field
The invention belongs to the technical field of cables, and particularly relates to an aluminum alloy cable or an optical cable with a cross unit.
Background
In the prior art, as CN218241370U discloses a cross-type photoelectric hybrid branch optical cable, which is characterized in that: the cable comprises a main optical cable, wherein the main optical cable comprises a first optical fiber and two feeder lines, the first optical fiber and the feeder lines are stranded and arranged in an outer sheath, four branch optical cables are equidistantly arranged on the circumference of the outer sheath through connecting pieces, the four branch optical cables are distributed at 90 degrees and are symmetrically arranged in a cross shape relative to the center of the main optical cable; the branch optical cable comprises a second optical fiber, reinforcing pieces and butterfly-shaped optical cable outer jackets, wherein the reinforcing pieces are arranged at two ends of the second optical fiber, the two reinforcing pieces are arranged in an axisymmetric mode by taking the second optical fiber as an axis, and the second optical fiber and the reinforcing pieces are arranged in the butterfly-shaped optical cable outer jackets.
The prior art has the following defects: 1. the electric unit cannot be added on the outer side of the optical cable, and the transmission density of the electric unit is small; 2. the structure cannot be used as a subunit expansion structure, and the photoelectric transmission density is increased.
Disclosure of Invention
In order to solve the above problems, the present invention aims to disclose an aluminum alloy cable or optical cable with a cross unit, which is realized by adopting the following technical scheme.
An aluminum alloy cable with cross unit has the cable core, the cable core comprises a center reinforcement and at least three second electric units, the second electric units are located around the center reinforcement, the second electric units are composed of a second conductor and a second insulating layer extruded outside the second conductor, the aluminum alloy cable is characterized in that: the cable core is provided with a cross unit, the cross unit consists of four outer protective layers, four first butterfly units and an inner protective layer, the inner protective layer is in a circular ring shape in the same cross section, a second containing cavity is formed in the inner protective layer, and the cable core is positioned in the second containing cavity;
The four first butterfly units are fixed on the periphery of the inner protective layer, and the distances between two adjacent first butterfly units are the same;
The outer protective layer is 匚 -shaped, the outer protective layer is composed of a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the rear outer protective layer is connected with the other end of the other side edge of the front outer protective layer in the clockwise direction, the connecting position of the two outer protective layers is connected with the corresponding first butterfly-shaped unit, a right-angle V-shaped groove is formed between the two adjacent outer protective layers, and a first containing cavity is formed between the outer protective layer and the inner protective layer;
The first cavity is internally provided with a transmission unit, the transmission unit is composed of a rectangular transmission unit protection layer and at least two first electric units positioned in the transmission unit protection layer, each first electric unit is composed of a first conductor and a first insulating layer extruded outside the first conductor, and the first conductor and the second conductor are aluminum alloy conductors.
The above-mentioned aluminum alloy cable with cross unit, its characterized in that: the first butterfly unit consists of a first butterfly protection layer, two first butterfly unit reinforcing pieces and an optical fiber, wherein the optical fiber is positioned between the two first butterfly unit reinforcing pieces, the first butterfly protection layer is extruded outside the two first butterfly unit reinforcing pieces and the optical fiber, and the connecting line of the axis of the optical fiber of the first butterfly unit and the axis of the second cavity is perpendicular to the connecting line of the axes of the corresponding two first butterfly unit reinforcing pieces.
The above-mentioned aluminum alloy cable with cross unit, its characterized in that: the bottoms of the V-shaped grooves, the axes of the optical fibers of the corresponding first butterfly units and the axes of the second accommodating cavities are positioned on the same straight line.
The above-mentioned aluminum alloy cable with cross unit, its characterized in that: and at least one second butterfly unit is further arranged between every two adjacent first butterfly units, each second butterfly unit is composed of a second butterfly protection layer, two second butterfly unit reinforcing pieces and an optical fiber, the optical fiber is positioned between the two second butterfly unit reinforcing pieces, the second butterfly protection layer is extruded outside the two second butterfly unit reinforcing pieces and the optical fiber, the second butterfly units are fixed with the inner protection layer, and the connecting line of the axis of the optical fiber of each second butterfly unit and the axis of the second accommodating cavity is perpendicular to the connecting line of the axis of the corresponding two second butterfly unit reinforcing pieces.
The above-mentioned aluminum alloy cable with cross unit, its characterized in that: the first accommodating cavity is internally provided with a transmission unit and a 匚 -shaped metal shielding part, two ends of the metal shielding part are respectively inserted between the first butterfly-shaped protective layer outside the first butterfly-shaped unit reinforcing part of the corresponding first butterfly-shaped unit and the end part of the corresponding outer protective layer, and the transmission unit is positioned between the metal shielding part and the inner protective layer.
An aluminum alloy cable with cross unit has protective sheath, its characterized in that: the protective sleeve is internally provided with three rows of cross units, each cross unit consists of four outer protective layers, four first butterfly units and an inner protective layer, the inner protective layer is in a circular ring shape in the same cross section, a second containing cavity is formed in the inner protective layer, a cable core is arranged in the second containing cavity, the cable core consists of a central reinforcing piece and at least three second electric units, the second electric units are positioned around the central reinforcing piece, and each second electric unit consists of a second conductor and a second insulating layer extruded outside the second conductor;
The four first butterfly units are fixed on the periphery of the inner protective layer, and the distances between two adjacent first butterfly units are the same;
The outer protective layer is 匚 -shaped, the outer protective layer is composed of a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the rear outer protective layer is connected with the other end of the other side edge of the front outer protective layer in the clockwise direction, the connecting position of the two outer protective layers is connected with the corresponding first butterfly-shaped unit, a right-angle V-shaped groove is formed between the two adjacent outer protective layers, and a first containing cavity is formed between the outer protective layer and the inner protective layer;
The first cavity is internally provided with a transmission unit, the transmission unit is composed of a rectangular transmission unit protection layer and at least two first electric units positioned in the transmission unit protection layer, each first electric unit is composed of a first conductor and a first insulating layer extruded outside the first conductor, and the first conductor and the second conductor are aluminum alloy conductors;
From left to right, when the first row has n cross units, the second row has n-1 cross units, the number of the cross units in the third row is the same as that of the cross units in the first row, n is more than or equal to 2, in the cross units in the first row, the bottom edge of the outer protection layer below the cross unit on the upper side is completely attached to the bottom edge of the outer protection layer above the cross unit adjacent to the lower side, in the cross units in the third row, the bottom edge of the outer protection layer below the cross unit on the upper side is completely attached to the bottom edge of the outer protection layer above the cross unit adjacent to the lower side, when the number of the cross units in the second row is more than or equal to two, the bottom edge of the outer protection layer below the cross unit on the second row is completely attached to the bottom edge of the outer protection layer above the cross unit adjacent to the lower side, from top to the bottom edge of the outer protection layer, the outer protection layer on the left side of the first cross unit on the second row is clamped between the a-side and the two outer protection layers on the right side of the upper side of the cross unit adjacent to the lower side, the inner protection layer on the left side of the cross unit on the left side is clamped between the left side of the cross unit on the second row and the outer protection layer a-1 and the inner wall of the outer protection layer on the left side of the outer protection layer adjacent to the inner protection layer, and the inner protection layer on the inner side of the inner protection layer is not smaller than the inner protection layer on the inner side of the inner protection layer.
An aluminum alloy cable with cross unit has protective sheath, its characterized in that: the protective sleeve is internally provided with three rows of cross units, each cross unit consists of four outer protective layers, four first butterfly units and an inner protective layer, the inner protective layer is in a circular ring shape in the same cross section, a second containing cavity is formed in the inner protective layer, a cable core is arranged in the second containing cavity, the cable core consists of a central reinforcing piece and at least three second electric units, the second electric units are positioned around the central reinforcing piece, and each second electric unit consists of a second electric conductor and a second insulating layer extruded outside the second electric conductor;
The four first butterfly units are fixed on the periphery of the inner protective layer, and the distances between two adjacent first butterfly units are the same;
The outer protective layer is 匚 -shaped, the outer protective layer is composed of a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the rear outer protective layer is connected with the other end of the other side edge of the front outer protective layer in the clockwise direction, the connecting position of the two outer protective layers is connected with the corresponding first butterfly-shaped unit, a right-angle V-shaped groove is formed between the two adjacent outer protective layers, and a first containing cavity is formed between the outer protective layer and the inner protective layer;
The first cavity is internally provided with a transmission unit, the transmission unit is composed of a rectangular transmission unit protection layer and at least two first electric units positioned in the transmission unit protection layer, each first electric unit is composed of a first conductor and a first insulating layer extruded outside the first conductor, and the first conductor and the second conductor are aluminum alloy conductors;
From left to right, when the first row has n cross units, the second row has n+1 cross units, the number of the cross units of the third row is the same as that of the cross units of the first row, n is more than or equal to 1, when the number of the cross units of the first row is more than or equal to two, the bottom edge of the outer protection layer below the cross units of the first row is completely attached to the bottom edge of the outer protection layer above the cross units adjacent to the lower side, in the cross units of the third row, the bottom edge of the outer protection layer below the cross units adjacent to the lower side is completely attached to the bottom edge of the outer protection layer above the cross units adjacent to the lower side, in the cross units of the second row, the bottom edge of the outer protection layer below the cross units adjacent to the lower side is completely attached to the bottom edge of the outer protection layer above the cross units of the first row, the outer protection layer on the right side of the first row is clamped between the a-th outer protection layer of the cross units of the second row and the two outer protection layers on the left side of the a+1 cross units, the inner protection layer on the left side of the cross units of the third row is clamped between the inner protection layer a-side of the outer protection layer and the outer protection layer on the right side of the cross units adjacent to the inner protection layer, and the inner protection layer on the inner side of the inner protection layer is not smaller than the inner wall of the inner protection layer of the outer protection layer, and the inner protection layer is filled between the inner protection layer and the inner protection layer on the inner protection layer between the outer protection layer and the outer protection layer.
The above-mentioned aluminum alloy cable with cross unit, its characterized in that: the bottoms of the V-shaped grooves, the axes of the optical fibers of the corresponding first butterfly units and the axes of the second accommodating cavities are positioned on the same straight line.
The above-mentioned aluminum alloy cable with cross unit, its characterized in that: at least one second butterfly unit is further arranged between two adjacent first butterfly units in the cross unit, the second butterfly unit is composed of a second butterfly protection layer, two second butterfly unit reinforcing pieces and an optical fiber, the optical fiber is positioned between the two second butterfly unit reinforcing pieces, the second butterfly protection layer is extruded outside the two second butterfly unit reinforcing pieces and the optical fiber, the second butterfly unit is fixed with the inner protection layer, and the connecting line of the axis of the optical fiber of the second butterfly unit and the axis of the second accommodating cavity is perpendicular to the connecting line of the axes of the corresponding two second butterfly unit reinforcing pieces.
The above-mentioned aluminum alloy cable with cross unit, its characterized in that: the first accommodating cavity is internally provided with a transmission unit and a 匚 -shaped metal shielding part, two ends of the metal shielding part are respectively inserted between the first butterfly-shaped protective layer outside the first butterfly-shaped unit reinforcing part of the corresponding first butterfly-shaped unit and the end part of the corresponding outer protective layer, and the transmission unit is positioned between the metal shielding part and the inner protective layer.
An optical cable with cross unit has the cable core, the cable core comprises a center reinforcement and at least three loose tubes, is equipped with at least one optic fibre in the loose tube, its characterized in that: the cable core is provided with a cross unit, the cross unit is composed of four outer protective layers, four first butterfly units and an inner protective layer, the inner protective layer is in a circular ring shape in the same cross section, a second containing cavity is formed in the inner protective layer, and the cable core is positioned in the second containing cavity;
The four first butterfly units are fixed on the periphery of the inner protective layer, and the distances between two adjacent first butterfly units are the same;
The outer protective layer is 匚 -shaped, the outer protective layer is composed of a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the rear outer protective layer is connected with the other end of the other side edge of the front outer protective layer in the clockwise direction, the connecting position of the two outer protective layers is connected with the corresponding first butterfly-shaped unit, a right-angle V-shaped groove is formed between the two adjacent outer protective layers, and a first containing cavity is formed between the outer protective layer and the inner protective layer;
the first containing cavity is internally provided with a transmission unit, the transmission unit is composed of a rectangular transmission unit protection layer and at least two loose tubes positioned in the transmission unit protection layer, and at least one optical fiber is arranged in each loose tube.
The above-mentioned aluminum alloy cable with cross unit, its characterized in that: the bottoms of the V-shaped grooves, the axes of the optical fibers of the corresponding first butterfly units and the axes of the second accommodating cavities are positioned on the same straight line.
The above-mentioned aluminum alloy cable with cross unit, its characterized in that: and at least one second butterfly unit is further arranged between every two adjacent first butterfly units, each second butterfly unit is composed of a second butterfly protection layer, two second butterfly unit reinforcing pieces and an optical fiber, the optical fiber is positioned between the two second butterfly unit reinforcing pieces, the second butterfly protection layer is extruded outside the two second butterfly unit reinforcing pieces and the optical fiber, the second butterfly units are fixed with the inner protection layer, and the connecting line of the axis of the optical fiber of each second butterfly unit and the axis of the second accommodating cavity is perpendicular to the connecting line of the axis of the corresponding two second butterfly unit reinforcing pieces.
The application has the following beneficial effects:
1. The cross units are integrally formed, and protective layers do not need to be respectively processed on the cable core, the first butterfly units and the transmission units, so that the processing is convenient, and the efficiency is high; and the cable core, the first butterfly unit and the transmission unit are respectively positioned on different layers, so that the stripping cannot be affected mutually.
The bottom of 2.V grooves, the axis of the optical fiber of the corresponding first butterfly unit and the axis of the second cavity are positioned on the same straight line, and the V-shaped grooves can be used as stripping grooves, so that constructors can quickly find and strip out the optical fiber in the first butterfly unit, and the outer protective layer or the inner protective layer cannot be damaged.
3. The gaps formed between two adjacent first butterfly units are beneficial to heat dissipation of the first conductors in the transmission units.
4. The addition of the second butterfly unit increases the fiber density within the cable.
5. The first butterfly unit and the possible second butterfly unit are evenly distributed around the inner sheath, and when the cable is laid in an overhead mode, the first butterfly unit reinforcing part in the first butterfly unit and the possible second butterfly unit reinforcing part in the second butterfly unit enable the tensile force born by the cable to be more even.
6. The 匚 -shaped metal shielding layer is arranged, the lightning protection characteristic is enhanced, meanwhile, the 匚 -shaped metal shielding layer also plays a supporting role on an internal transmission unit, and the compression resistance and the tensile resistance of the cable are improved.
7. The cross units can be mutually embedded and combined and expanded, have stable structure and adapt to the requirements of different transmission core numbers.
Drawings
Fig. 1 is a schematic perspective view of a section of embodiment 1.
Fig. 2 is a schematic structural view of the end face of embodiment 1.
Fig. 3 is a schematic perspective view of a section of the cross sheath of embodiment 1.
Fig. 4 is a schematic structural diagram of an end face of the cross sheath of embodiment 1.
Fig. 5 is a schematic perspective view of a section of the transmission unit of embodiment 1.
Fig. 6 is a schematic structural diagram of a transmission unit of embodiment 1.
Fig. 7 is a schematic perspective view of a section of embodiment 2.
Fig. 8 is a schematic structural view of the end face of embodiment 2.
Fig. 9 is a schematic perspective view of a section of the cross sheath of embodiment 2.
Fig. 10 is a schematic structural diagram of an end face of the cross sheath of example 2.
Fig. 11 is a schematic structural view of the end face of embodiment 3.
Fig. 12 is a schematic structural view of the end face of embodiment 4.
Fig. 13 is a schematic structural view of the end face of embodiment 5.
Fig. 14 is a schematic structural view of the end face of embodiment 6.
In the figure: 11. cross-section unit, 111 outer jacket, 112, right angle V-groove, 113, first cavity, 114, first butterfly-shaped unit, 1141, first butterfly-shaped jacket, 1142, first butterfly-shaped unit strength member, 1143, optical fiber, 115, inner jacket, 116, second cavity, 117, second butterfly-shaped unit, 1171, second butterfly-shaped jacket, 1172, second butterfly-shaped unit strength member, 12, transmission unit, 121, transmission unit jacket, 122, first insulation layer, 123, first electrical conductor, 124, loose tube, 13, cable core, 131, second insulation layer, 132, second electrical conductor, 133, center strength member, 14, metal shielding component, 2, filler component, 3, outer jacket.
Detailed Description
Example 1
As shown in fig. 1 to 6, an aluminum alloy cable with a cross unit, having a cable core 13, the cable core 13 is composed of a central reinforcement 133 and at least three second electric units, the second electric units are located around the central reinforcement 133, and the second electric units are composed of a second electric conductor 132 and a second insulating layer 131 extruded outside the second electric conductor 132, and is characterized in that: the cable core 13 is externally provided with a cross unit 11, the cross unit 11 is composed of four outer protective layers 111, four first butterfly units 114 and an inner protective layer 115, the inner protective layer 115 is in a circular ring shape in the same cross section, a second containing cavity 116 is formed in the inner protective layer 115, and the cable core is positioned in the second containing cavity 116;
The first butterfly unit 114 is composed of a first butterfly protection layer 1141, two first butterfly unit stiffeners 1142 and an optical fiber 1143, the optical fiber 1143 is located between the two first butterfly unit stiffeners 1142, the first butterfly protection layer 1141 is extruded outside the two first butterfly unit stiffeners 1142 and the optical fiber 1143, the four first butterfly units 114 are fixed around the inner protection layer 115, the adjacent two first butterfly units 114 have the same distance, and the connection line between the axis of the optical fiber 1143 of the first butterfly unit 114 and the axis of the second cavity 116 is perpendicular to the connection line between the axes of the corresponding two first butterfly unit stiffeners 1142;
The outer sheath 111 is 匚 -shaped, the outer sheath 111 is formed by a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the other side edge is connected with the other end of the other side edge of the previous outer sheath 111 along the clockwise direction, the connection part of the two outer sheaths 111 is connected with the corresponding first butterfly unit 114, a right-angle V-shaped groove 112 is formed between the two adjacent outer sheaths 111, the bottom of the V-shaped groove 112, the axis of the optical fiber 1143 of the corresponding first butterfly unit 114 and the axis of the second cavity 116 are positioned on the same straight line, and a first cavity 113 is formed between the outer sheath 111 and the inner sheath 115;
a transmission unit 12 is disposed in the first cavity 113, the transmission unit 12 is composed of a rectangular transmission unit protection layer 121 and at least two first electric units disposed in the transmission unit protection layer 121, and the first electric units are composed of a first electric conductor 123 and a first insulating layer 122 extruded outside the first electric conductor 123;
The first conductor 123 and the second conductor 132 are aluminum alloy conductors.
Example 2
As shown in fig. 7 to 10, and referring to fig. 5 and 6, an aluminum alloy cable having a cross unit, having a cable core 13, the cable core 13 being composed of a central reinforcement 133 and at least three second electric units, the second electric units being located around the central reinforcement 133, the second electric units being composed of a second electric conductor 132 and a second insulating layer 131 extruded outside the second electric conductor 132, characterized in that: the cable core 13 is externally provided with a cross unit 11, the cross unit 11 is composed of four outer protective layers 111, four first butterfly units 114, four second butterfly units 117 and an inner protective layer 115, the inner protective layer 115 is annular in shape in the same cross section, a second containing cavity 116 is formed in the inner protective layer 115, and the cable core is positioned in the second containing cavity 116;
The first butterfly unit 114 is composed of a first butterfly protection layer 1141, two first butterfly unit stiffeners 1142 and an optical fiber 1143, the optical fiber 1143 is located between the two first butterfly unit stiffeners 1142, the first butterfly protection layer 1141 is extruded outside the two first butterfly unit stiffeners 1142 and the optical fiber 1143, the four first butterfly units 114 are fixed around the inner protection layer 115, the adjacent two first butterfly units 114 have the same distance, and the connection line between the axis of the optical fiber 1143 of the first butterfly unit 114 and the axis of the second cavity 116 is perpendicular to the connection line between the axes of the corresponding two first butterfly unit stiffeners 1142;
The second butterfly unit 117 is composed of a second butterfly protection layer 1171, two second butterfly unit reinforcements 1172 and an optical fiber 1143, the optical fiber 1143 is located between the two second butterfly unit reinforcements 1172, the second butterfly protection layer 1171 is extruded outside the two second butterfly unit reinforcements 1172 and the optical fiber 1143, the four second butterfly units 117 are distributed with the four first butterfly units 114 at intervals, the second butterfly units 117 are fixed with the inner protection layer 115, and the connection line between the axis of the optical fiber 1143 of the second butterfly unit 117 and the axis of the second cavity 116 is perpendicular to the connection line between the axes of the corresponding two second butterfly unit reinforcements 1172;
The outer sheath 111 is 匚 -shaped, the outer sheath 111 is formed by a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the other side edge is connected with the other end of the other side edge of the previous outer sheath 111 along the clockwise direction, the connection part of the two outer sheaths 111 is connected with the corresponding first butterfly unit 114, a right-angle V-shaped groove 112 is formed between the two adjacent outer sheaths 111, the bottom of the V-shaped groove 112, the axis of the optical fiber 1143 of the corresponding first butterfly unit 114 and the axis of the second cavity 116 are positioned on the same straight line, and a first cavity 113 is formed between the outer sheath 111 and the inner sheath 115;
a transmission unit 12 is disposed in the first cavity 113, the transmission unit 12 is composed of a rectangular transmission unit protection layer 121 and at least two first electric units disposed in the transmission unit protection layer 121, and the first electric units are composed of a first electric conductor 123 and a first insulating layer 122 extruded outside the first electric conductor 123;
The first conductor 123 and the second conductor 132 are aluminum alloy conductors.
Example 3
Referring to fig. 11, and referring to fig. 3 and 4, an optical cable with a cross unit, having a cable core 13, the cable core 13 is composed of a central reinforcing member 133 and at least three loose tubes 124, and at least one optical fiber 1143 is disposed in the loose tubes 124, which is characterized in that: the cable core 13 is externally provided with a cross unit 11, the cross unit 11 is composed of four outer protective layers 111, four first butterfly units 114 and an inner protective layer 115, the inner protective layer 115 is annular in shape in the same cross section, and a second containing cavity 116 is formed in the inner protective layer 115;
The first butterfly unit 114 is composed of a first butterfly protection layer 1141, two first butterfly unit stiffeners 1142 and an optical fiber 1143, the optical fiber 1143 is located between the two first butterfly unit stiffeners 1142, the first butterfly protection layer 1141 is extruded outside the two first butterfly unit stiffeners 1142 and the optical fiber 1143, the four first butterfly units 114 are fixed around the inner protection layer 115, the adjacent two first butterfly units 114 have the same distance, and the connection line between the axis of the optical fiber 1143 of the first butterfly unit 114 and the axis of the second cavity 116 is perpendicular to the connection line between the axes of the corresponding two first butterfly unit stiffeners 1142;
The outer sheath 111 is 匚 -shaped, the outer sheath 111 is formed by a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the other side edge is connected with the other end of the other side edge of the previous outer sheath 111 along the clockwise direction, the connection part of the two outer sheaths 111 is connected with the corresponding first butterfly unit 114, a right-angle V-shaped groove 112 is formed between the two adjacent outer sheaths 111, the bottom of the V-shaped groove 112, the axis of the optical fiber 1143 of the corresponding first butterfly unit 114 and the axis of the second cavity 116 are positioned on the same straight line, and a first cavity 113 is formed between the outer sheath 111 and the inner sheath 115;
the first cavity 113 is provided with a transmission unit 12, the transmission unit 12 is composed of a rectangular transmission unit protecting layer 121 and at least two loose tubes 124 disposed in the transmission unit protecting layer 121, and at least one optical fiber 1143 is disposed in the loose tubes 124.
Example 4
As shown in fig. 12, and referring to fig. 3 to 6, an aluminum alloy cable having a cross unit, having a cable core 13, the cable core 13 being composed of a central reinforcement 133 and at least three second electric units, the second electric units being located around the central reinforcement 133, the second electric units being composed of a second electric conductor 132 and a second insulating layer 131 extruded outside the second electric conductor 132, characterized in that: the cable core 13 is externally provided with a cross unit 11, the cross unit 11 is composed of four outer protective layers 111, four first butterfly units 114 and an inner protective layer 115, the inner protective layer 115 is in a circular ring shape in the same cross section, a second containing cavity 116 is formed in the inner protective layer 115, and the cable core is positioned in the second containing cavity 116;
The first butterfly unit 114 is composed of a first butterfly protection layer 1141, two first butterfly unit stiffeners 1142 and an optical fiber 1143, the optical fiber 1143 is located between the two first butterfly unit stiffeners 1142, the first butterfly protection layer 1141 is extruded outside the two first butterfly unit stiffeners 1142 and the optical fiber 1143, the four first butterfly units 114 are fixed around the inner protection layer 115, the adjacent two first butterfly units 114 have the same distance, and the connection line between the axis of the optical fiber 1143 of the first butterfly unit 114 and the axis of the second cavity 116 is perpendicular to the connection line between the axes of the corresponding two first butterfly unit stiffeners 1142;
The outer sheath 111 is 匚 -shaped, the outer sheath 111 is formed by a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the other side edge is connected with the other end of the other side edge of the previous outer sheath 111 along the clockwise direction, the connection part of the two outer sheaths 111 is connected with the corresponding first butterfly unit 114, a right-angle V-shaped groove 112 is formed between the two adjacent outer sheaths 111, the bottom of the V-shaped groove 112, the axis of the optical fiber 1143 of the corresponding first butterfly unit 114 and the axis of the second cavity 116 are positioned on the same straight line, and a first cavity 113 is formed between the outer sheath 111 and the inner sheath 115;
A transmission unit 12 and a 匚 -shaped metal shielding component 14 are disposed in the first cavity 113, two ends of the metal shielding component 14 are respectively inserted between the first butterfly-shaped protective layer 1141 outside the first butterfly-shaped unit stiffener 1142 of the corresponding first butterfly-shaped unit 114 and the end of the corresponding outer protective layer 111, the transmission unit 12 is disposed between the metal shielding component 14 and the inner protective layer 115, the transmission unit 12 is composed of a rectangular transmission unit protective layer 121 and at least two first electrical units disposed in the transmission unit protective layer 121, and the first electrical units are composed of a first electrical conductor 123 and a first insulating layer 122 extruded outside the first electrical conductor 123;
The first conductor 123 and the second conductor 132 are aluminum alloy conductors.
Example 5
As shown in fig. 13, and referring to fig. 1 to 6, an aluminum alloy cable with a cross unit, having a protective sheath 3, characterized in that: five cross units 11 are arranged in the protective sleeve 3, the cross units 11 are composed of four outer protective layers 111, four first butterfly units 114 and an inner protective layer 115, the inner protective layer 115 is annular in shape in the same cross section, a second containing cavity 116 is formed in the inner protective layer 115, a cable core 13 is arranged in the second containing cavity 116, the cable core 13 is composed of a central reinforcing member 133 and at least three second electric units, the second electric units are located around the central reinforcing member 133, and the second electric units are composed of a second electric conductor 132 and a second insulating layer 131 extruded outside the second electric conductor 132;
The first butterfly unit 114 is composed of a first butterfly protection layer 1141, two first butterfly unit stiffeners 1142 and an optical fiber 1143, the optical fiber 1143 is located between the two first butterfly unit stiffeners 1142, the first butterfly protection layer 1141 is extruded outside the two first butterfly unit stiffeners 1142 and the optical fiber 1143, the four first butterfly units 114 are fixed around the inner protection layer 115, the adjacent two first butterfly units 114 have the same distance, and the connection line between the axis of the optical fiber 1143 of the first butterfly unit 114 and the axis of the second cavity 116 is perpendicular to the connection line between the axes of the corresponding two first butterfly unit stiffeners 1142;
The outer sheath 111 is 匚 -shaped, the outer sheath 111 is formed by a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the other side edge is connected with the other end of the other side edge of the previous outer sheath 111 along the clockwise direction, the connection part of the two outer sheaths 111 is connected with the corresponding first butterfly unit 114, a right-angle V-shaped groove 112 is formed between the two adjacent outer sheaths 111, the bottom of the V-shaped groove 112, the axis of the optical fiber 1143 of the corresponding first butterfly unit 114 and the axis of the second cavity 116 are positioned on the same straight line, and a first cavity 113 is formed between the outer sheath 111 and the inner sheath 115;
a transmission unit 12 is disposed in the first cavity 113, the transmission unit 12 is composed of a rectangular transmission unit protection layer 121 and at least two first electric units disposed in the transmission unit protection layer 121, and the first electric units are composed of a first electric conductor 123 and a first insulating layer 122 extruded outside the first electric conductor 123;
the first conductor 123 and the second conductor 132 are aluminum alloy conductors;
The five cross units 11 are divided into three rows, from left to right, the first row is provided with two cross units 11, the second row is provided with one cross unit 11, the third row is provided with two cross units 11, the bottom edge of the outer protection layer 111 below the cross unit 11 on the upper side is completely jointed with the bottom edge of the outer protection layer 111 above the cross unit 11 on the lower side in the first row, the bottom edge of the outer protection layer 111 below the cross unit 11 on the upper side is completely jointed with the bottom edge of the outer protection layer 111 above the cross unit 11 on the lower side in the third row in the two cross units 11 on the upper side, the outer protection layer 111 on the left side of the cross unit 11 on the second row is clamped between the two outer protection layers 111 on the right side of the two cross units 11 on the first row, the outer protection layer 111 on the right side of the cross unit 11 on the second row is clamped between the two outer protection layers 111 on the left side of the two cross units 11 on the third row, the inner wall of the protection layer 3 is completely jointed with the bottom edge of the outer protection layer 111 on the upper side of the cross unit 3, and all the inner protection layers 3 are jointed with the inner protection layer 111 on the outer protection layer 3 on the upper side, and all the inner protection layers are mutually jointed with the inner protection layers 3 on the inner sides of the outer protection layer 3 on the upper side.
Example 6
As shown in fig. 14, and referring to fig. 1 to 6, an aluminum alloy cable with a cross unit, having a protective sheath 3, characterized in that: seven cross units 11 are arranged in the protective sleeve 3, each cross unit 11 is composed of four outer protective layers 111, four first butterfly units 114 and an inner protective layer 115, the inner protective layer 115 is annular in shape in the same cross section, a second containing cavity 116 is formed in the inner protective layer 115, a cable core 13 is arranged in the second containing cavity 116, the cable core 13 is composed of a central reinforcing piece 133 and at least three second electric units, the second electric units are located around the central reinforcing piece 133, and each second electric unit is composed of a second electric conductor 132 and a second insulating layer 131 extruded outside the second electric conductor 132;
The first butterfly unit 114 is composed of a first butterfly protection layer 1141, two first butterfly unit stiffeners 1142 and an optical fiber 1143, the optical fiber 1143 is located between the two first butterfly unit stiffeners 1142, the first butterfly protection layer 1141 is extruded outside the two first butterfly unit stiffeners 1142 and the optical fiber 1143, the four first butterfly units 114 are fixed around the inner protection layer 115, the adjacent two first butterfly units 114 have the same distance, and the connection line between the axis of the optical fiber 1143 of the first butterfly unit 114 and the axis of the second cavity 116 is perpendicular to the connection line between the axes of the corresponding two first butterfly unit stiffeners 1142;
The outer sheath 111 is 匚 -shaped, the outer sheath 111 is formed by a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the other side edge is connected with the other end of the other side edge of the previous outer sheath 111 along the clockwise direction, the connection part of the two outer sheaths 111 is connected with the corresponding first butterfly unit 114, a right-angle V-shaped groove 112 is formed between the two adjacent outer sheaths 111, the bottom of the V-shaped groove 112, the axis of the optical fiber 1143 of the corresponding first butterfly unit 114 and the axis of the second cavity 116 are positioned on the same straight line, and a first cavity 113 is formed between the outer sheath 111 and the inner sheath 115;
a transmission unit 12 is disposed in the first cavity 113, the transmission unit 12 is composed of a rectangular transmission unit protection layer 121 and at least two first electric units disposed in the transmission unit protection layer 121, and the first electric units are composed of a first electric conductor 123 and a first insulating layer 122 extruded outside the first electric conductor 123;
the first conductor 123 and the second conductor 132 are aluminum alloy conductors;
the seven cross units 11 are divided into three rows, from left to right, the first row is provided with two cross units 11, the second row is provided with three cross units 11, the third row is provided with two cross units 11, the bottom edge of the outer protection layer 111 below the cross unit 11 in the first row is completely attached to the bottom edge of the outer protection layer 111 above the cross unit 11 below the cross unit 11, the bottom edge of the outer protection layer 111 below the cross unit 11 above the cross unit 11 from top to bottom is completely attached to the bottom edge of the outer protection layer 111 above the cross unit 11 below the cross unit 11, the bottom edge of the outer protection layer 111 below the cross unit 11 in the third row is completely attached to the bottom edge of the outer protection layer 111 above the cross unit 11 below the cross unit 11, the outer protection layer 111 on the right side of the cross unit 11 in the first row is clamped between the two outer protection layers 111 on the left side of the corresponding adjacent cross unit 11, the inner protection layer 3 is attached to the inner protection layer 3 on the outer protection layer 3 on the right side of the outer protection layer 111, and the inner protection layer 3 on the inner side of the outer protection layer 3 is attached to the inner protection layer on the outer protection layer 3 on the right side.
The application has the following beneficial effects:
1. The cross unit 11 is integrally formed, and protective layers are not required to be respectively processed on the cable core 13, the first butterfly unit 114 and the transmission unit 12, so that the processing is convenient, and the efficiency is high; and the cable core 13, the first butterfly unit 114 and the transmission unit 12 are respectively positioned at different layers, so that the stripping does not affect each other.
The bottom of 2.V groove 112, the axis of optical fiber 1143 of corresponding first butterfly unit 114 and the axis of second cavity 116 are located in the same straight line, and V-groove 112 can be used as a stripping groove, so that a constructor can quickly find and strip out optical fiber 1143 in the first butterfly unit without damaging outer protective layer 111 or inner protective layer 115.
3. The gap formed between two adjacent first butterfly units 114 facilitates heat dissipation from the first electrical conductor 123 within the transmission unit 12.
4. The addition of the second butterfly unit 117 increases the fiber density within the cable.
5. The first butterfly unit 114 and the possible second butterfly unit 117 are uniformly distributed around the inner sheath 115, and when laid overhead, the first butterfly unit stiffener 1142 in the first butterfly unit 114 and the possible second butterfly unit stiffener 1172 in the second butterfly unit 117 make the tension applied to the cable more uniform.
6. The 匚 -shaped metal shielding layer is arranged, the lightning protection characteristic is enhanced, meanwhile, the 匚 -shaped metal shielding layer also plays a supporting role on the internal transmission unit 12, and the compression resistance and the tensile resistance of the cable are improved.
7. The cross units 11 can be mutually embedded and combined and expanded, have stable structure and adapt to the requirements of different transmission core numbers.
The above-described embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (10)
1. An aluminum alloy cable with cross units, having a cable core (13), the cable core (13) being constituted by a central reinforcement (133) and at least three second electrical units, the second electrical units being constituted by a second electrical conductor (132) and a second insulating layer (131) extruded outside the second electrical conductor (132), characterized in that: the cable core (13) is externally provided with a cross unit (11), the cross unit (11) is composed of four outer protective layers (111), four first butterfly units (114) and an inner protective layer (115), the inner protective layer (115) is in a circular ring shape in the same cross section, a second containing cavity (116) is formed in the inner protective layer (115), and the cable core is positioned in the second containing cavity (116);
The four first butterfly units (114) are fixed on the periphery of the inner protective layer (115), and the distances between two adjacent first butterfly units (114) are the same;
The outer protection layer (111) is 匚 -shaped, the outer protection layer (111) is composed of a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the rear outer protection layer (111) is connected with the other end of the other side edge of the front outer protection layer (111) along the clockwise direction, the connecting part of the two outer protection layers (111) is connected with a corresponding first butterfly unit (114), a right-angle V-shaped groove (112) is formed between the two adjacent outer protection layers (111), and a first containing cavity (113) is formed between the outer protection layers (111) and the inner protection layers (115);
The first accommodating cavity (113) is internally provided with a transmission unit (12), the transmission unit (12) is composed of a rectangular transmission unit protection layer (121) and at least two first electric units positioned in the transmission unit protection layer (121), each first electric unit is composed of a first electric conductor (123) and a first insulating layer (122) extruded outside the first electric conductor (123), and the first electric conductor (123) and the second electric conductor (132) are aluminum alloy conductors.
2.An aluminum alloy cable with a cross unit according to claim 1, characterized in that: the first butterfly unit (114) is composed of a first butterfly protection layer (1141), two first butterfly unit reinforcing pieces (1142) and an optical fiber (1143), the optical fiber (1143) is located between the two first butterfly unit reinforcing pieces (1142), the first butterfly protection layer (1141) is extruded outside the two first butterfly unit reinforcing pieces (1142) and the optical fiber (1143), and the axis of the optical fiber (1143) of the first butterfly unit (114) is perpendicular to the axis of the second cavity (116).
3. An aluminum alloy cable with a cross unit as claimed in claim 2, characterized in that: the bottoms of the V-shaped grooves (112), the axes of the optical fibers (1143) of the corresponding first butterfly units (114) and the axes of the second accommodating cavities (116) are positioned on the same straight line.
4. An aluminum alloy cable with a cross unit according to claim 3, characterized in that: at least one second butterfly unit (117) is further arranged between two adjacent first butterfly units (114), the second butterfly units (117) are composed of a second butterfly protection layer (1171), two second butterfly unit reinforcing pieces (1172) and an optical fiber (1143), the optical fiber (1143) is located between the two second butterfly unit reinforcing pieces (1172), the second butterfly protection layer (1171) is extruded outside the two second butterfly unit reinforcing pieces (1172) and the optical fiber (1143), the second butterfly units (117) are fixed with the inner protection layer (115), and the axis of the optical fiber (1143) of each second butterfly unit (117) is perpendicular to the axis of the corresponding second butterfly unit reinforcing piece (1172).
5. An aluminum alloy cable with a cross unit according to claim 4, characterized in that: a transmission unit (12) and a 匚 -shaped metal shielding component (14) are arranged in the first accommodating cavity (113), two ends of the metal shielding component (14) are respectively inserted between the first butterfly-shaped protective layer (1141) outside the first butterfly-shaped unit reinforcing piece (1142) of the corresponding first butterfly-shaped unit (114) and the end part of the corresponding outer protective layer (111), and the transmission unit (12) is positioned between the metal shielding component (14) and the inner protective layer (115).
6. An aluminium alloy cable with cross units, having a protective sheath (3), characterized in that: three rows of cross units (11) are arranged in the protective sleeve (3), each cross unit (11) is composed of four outer protective layers (111), four first butterfly units (114) and one inner protective layer (115), the inner protective layers (115) are in a circular ring shape in the same cross section, a second containing cavity (116) is formed in each inner protective layer (115), a cable core (13) is arranged in each second containing cavity (116), each cable core (13) is composed of a central reinforcing piece (133) and at least three second electric units, and each second electric unit is composed of a second electric conductor (132) and a second insulating layer (131) extruded outside the second electric conductor (132);
The four first butterfly units (114) are fixed on the periphery of the inner protective layer (115), and the distances between two adjacent first butterfly units (114) are the same;
The outer protection layer (111) is 匚 -shaped, the outer protection layer (111) is composed of a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the rear outer protection layer (111) is connected with the other end of the other side edge of the front outer protection layer (111) along the clockwise direction, the connecting part of the two outer protection layers (111) is connected with a corresponding first butterfly unit (114), a right-angle V-shaped groove (112) is formed between the two adjacent outer protection layers (111), and a first containing cavity (113) is formed between the outer protection layers (111) and the inner protection layers (115);
A transmission unit (12) is arranged in the first accommodating cavity (113), the transmission unit (12) is composed of a rectangular transmission unit protection layer (121) and at least two first electric units positioned in the transmission unit protection layer (121), each first electric unit is composed of a first electric conductor (123) and a first insulating layer (122) extruded outside the first electric conductor (123), and the first electric conductor (123) and the second electric conductor (132) are aluminum alloy conductors;
From left to right, when the first column has n cross units (11), the second column has n-1 cross units (11), the number of cross units (11) of the third column is the same as the number of cross units (11) of the first column, n is equal to or greater than 2, among the cross units (11) of the first column, the bottom edge of the outer sheath (111) below the upper cross unit (11) is fully bonded to the bottom edge of the outer sheath (111) above the lower adjacent cross unit (11), among the cross units (11) of the third column, the bottom edge of the outer sheath (111) below the upper cross unit (11) is fully bonded to the bottom edge of the outer sheath (111) above the lower adjacent cross unit (11), when the number of cross units (11) of the second column is equal to or greater than two, the bottom edge of the outer sheath (111) below the lower cross unit (11) on the second column is fully bonded to the bottom edge of the outer sheath (111) above the lower adjacent cross unit (11), the bottom edge of the outer sheath (111) below the lower cross unit (11) is fully bonded to the outer sheath (111) below the lower cross unit (11), and the top edge of the outer sheath (111) is fully bonded to the top edge of the outer sheath (111) below the upper cross unit (11) of the lower cross unit (11) of the upper cross unit (11), and the top edge is bonded to the top edge (111) of the outer sheath (111) below the upper side of the upper cross unit (11) and the lower side and the top side of the outer side (11) and the top side of the outer sheath (11) and the outer sheath (11 a) side of the upper side is completely bonded to the top side, a is less than or equal to n-1, the inner wall of the protective sleeve (3) is rectangular, the leftmost outer protective layer (111) is attached to the left inner wall of the protective sleeve (3), the leftmost outer protective layer (111) is attached to the upper inner wall of the protective sleeve (3), the rightmost outer protective layer (111) is attached to the right inner wall of the protective sleeve (3), the bottommost outer protective layer (111) is attached to the lower inner wall of the protective sleeve (3), and filling components (2) are arranged in gaps between the outer protective layers (111) and all cross units (11).
7. An aluminium alloy cable with cross units, having a protective sheath (3), characterized in that: three rows of cross units (11) are arranged in the protective sleeve (3), each cross unit (11) is composed of four outer protective layers (111), four first butterfly units (114) and one inner protective layer (115), the inner protective layers (115) are in a circular ring shape in the same cross section, a second containing cavity (116) is formed in each inner protective layer (115), a cable core (13) is arranged in each second containing cavity (116), each cable core (13) is composed of a central reinforcing piece (133) and at least three second electric units, and each second electric unit is composed of a second electric conductor (132) and a second insulating layer (131) extruded outside the second electric conductor (132);
The four first butterfly units (114) are fixed on the periphery of the inner protective layer (115), and the distances between two adjacent first butterfly units (114) are the same;
The outer protection layer (111) is 匚 -shaped, the outer protection layer (111) is composed of a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the rear outer protection layer (111) is connected with the other end of the other side edge of the front outer protection layer (111) along the clockwise direction, the connecting part of the two outer protection layers (111) is connected with a corresponding first butterfly unit (114), a right-angle V-shaped groove (112) is formed between the two adjacent outer protection layers (111), and a first containing cavity (113) is formed between the outer protection layers (111) and the inner protection layers (115);
A transmission unit (12) is arranged in the first accommodating cavity (113), the transmission unit (12) is composed of a rectangular transmission unit protection layer (121) and at least two first electric units positioned in the transmission unit protection layer (121), each first electric unit is composed of a first electric conductor (123) and a first insulating layer (122) extruded outside the first electric conductor (123), and the first electric conductor (123) and the second electric conductor (132) are aluminum alloy conductors;
From left to right, when the first column has n cross units (11), the second column has n+1 cross units (11), the number of cross units (11) of the third column is the same as the number of cross units (11) of the first column, n is equal to or greater than 1, when the number of cross units (11) of the first column is equal to or greater than two, the bottom edge of an outer sheath (111) below an upper cross unit (11) of the first column is fully attached to the bottom edge of an outer sheath (111) above a lower adjacent cross unit (11), the bottom edge of an outer sheath (111) below an upper cross unit (11) is fully attached to the bottom edge of an outer sheath (111) above a lower adjacent cross unit (11) among the cross units (11) of the third column, in the cross units (11) of the second row, the bottom edge of the outer protection layer (111) below the cross unit (11) of the upper side is completely attached to the bottom edge of the outer protection layer (111) above the cross unit (11) adjacent to the lower side, the outer protection layer (111) on the right side of the a-th cross unit (11) of the first row is clamped between the two outer protection layers (111) on the left sides of the a-th and a+1-th cross units (11) of the second row from top to bottom, the outer protection layer (111) on the left side of the a-th cross unit (11) of the third row is clamped between the two outer protection layers (111) on the right sides of the a-th and a+1-th cross units (11) of the second row, a is less than or equal to n, the inner wall of the protective sleeve (3) is rectangular, the leftmost outer protective layer (111) is attached to the left inner wall of the protective sleeve (3), the leftmost outer protective layer (111) is attached to the upper inner wall of the protective sleeve (3), the rightmost outer protective layer (111) is attached to the right inner wall of the protective sleeve (3), the bottommost outer protective layer (111) is attached to the lower inner wall of the protective sleeve (3), and filling components (2) are arranged in gaps between the outer protective layers (111) and all cross units (11).
8. An aluminum alloy cable with a cross unit according to claim 6 or claim 7, characterized in that: at least one second butterfly unit (117) is further arranged between two adjacent first butterfly units (114) in the cross unit (11), the second butterfly unit (117) is composed of a second butterfly protection layer (1171), two second butterfly unit reinforcements (1172) and an optical fiber (1143), the optical fiber (1143) is positioned between the two second butterfly unit reinforcements (1172), the second butterfly protection layer (1171) is extruded outside the two second butterfly unit reinforcements (1172) and the optical fiber (1143), the second butterfly unit (117) is fixed with the inner protection layer (115), and the axis of the optical fiber (1143) of the second butterfly unit (117) is perpendicular to the axis of the second accommodating cavity (116).
9. An optical cable with cross unit, has cable core (13), cable core (13) comprises a center reinforcement (133) and at least three loose tube (124), is equipped with at least one optic fibre (1143) in loose tube (124), its characterized in that: the cable core (13) is externally provided with a cross unit (11), the cross unit (11) is composed of four outer protective layers (111), four first butterfly units (114) and an inner protective layer (115), the inner protective layer (115) is in a circular ring shape in the same cross section, a second containing cavity (116) is formed in the inner protective layer (115), and the cable core is positioned in the second containing cavity (116);
The four first butterfly units (114) are fixed on the periphery of the inner protective layer (115), and the distances between two adjacent first butterfly units (114) are the same;
The outer protection layer (111) is 匚 -shaped, the outer protection layer (111) is composed of a bottom edge and two side edges, one end of the bottom edge of one side edge is connected with the other end of the bottom edge of the other side edge, the other end of one side edge of the rear outer protection layer (111) is connected with the other end of the other side edge of the front outer protection layer (111) along the clockwise direction, the connecting part of the two outer protection layers (111) is connected with a corresponding first butterfly unit (114), a right-angle V-shaped groove (112) is formed between the two adjacent outer protection layers (111), and a first containing cavity (113) is formed between the outer protection layers (111) and the inner protection layers (115);
The first accommodating cavity (113) is internally provided with a transmission unit (12), the transmission unit (12) is composed of a rectangular transmission unit protecting layer (121) and at least two loose tubes (124) positioned in the transmission unit protecting layer (121), and at least one optical fiber (1143) is arranged in each loose tube (124).
10. An optical cable with cross-shaped units according to claim 9, characterized in that: at least one second butterfly unit (117) is further arranged between two adjacent first butterfly units (114), the second butterfly units (117) are composed of a second butterfly protection layer (1171), two second butterfly unit reinforcing pieces (1172) and an optical fiber (1143), the optical fiber (1143) is located between the two second butterfly unit reinforcing pieces (1172), the second butterfly protection layer (1171) is extruded outside the two second butterfly unit reinforcing pieces (1172) and the optical fiber (1143), the second butterfly units (117) are fixed with the inner protection layer (115), and the axis of the optical fiber (1143) of each second butterfly unit (117) is perpendicular to the connecting line of the axes of the corresponding two second butterfly unit reinforcing pieces (1172).
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| CN212540812U (en) * | 2020-08-15 | 2021-02-12 | 常熟高通智能装备有限公司 | Cross leading-in optical cable for 5G |
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| CN116665981A (en) * | 2023-07-31 | 2023-08-29 | 苏州知遇光电科技有限公司 | Butterfly-shaped optical cable with bending optical fiber ribbon, ribbon-shaped optical cable and power cable |
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2024
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103093887A (en) * | 2013-01-28 | 2013-05-08 | 蒋菊生 | Cross-shaped framework and cables with cross-shaped framework adopted |
| CN210403244U (en) * | 2019-10-29 | 2020-04-24 | 江苏亨通光电股份有限公司 | Novel indoor wireless photoelectric composite cable for distribution system |
| CN110853817A (en) * | 2019-12-23 | 2020-02-28 | 常熟共益信息科技有限公司 | Photoelectric composite cable with novel structure for 5G network |
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