CN216053969U - Multi-core aluminum alloy cable - Google Patents
Multi-core aluminum alloy cable Download PDFInfo
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- CN216053969U CN216053969U CN202122230452.7U CN202122230452U CN216053969U CN 216053969 U CN216053969 U CN 216053969U CN 202122230452 U CN202122230452 U CN 202122230452U CN 216053969 U CN216053969 U CN 216053969U
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- aluminum alloy
- cable
- conductors
- arc line
- core
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 63
- 239000004020 conductor Substances 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims description 12
- 239000000779 smoke Substances 0.000 claims description 7
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 206010000369 Accident Diseases 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Abstract
The utility model mainly relates to the technical field of cables, and provides a multi-core aluminum alloy cable which comprises more than three aluminum alloy conductors and limiting pieces arranged among the aluminum alloy conductors; the section of the limiting part is formed by sequentially connecting more than three arc line sections at the beginning, each arc line section is attached to the outer edge of the connected aluminum alloy conductor, and the number of the arc line sections is the same as that of the aluminum alloy conductors; the intersection point of two adjacent arc line segments forms a ridge along the length direction of the limiting piece; the limiting parts are arranged among the aluminum alloy conductors, so that the aluminum alloy conductors are prevented from being twisted in the cable, and meanwhile, the recesses are arranged on the edges, so that the influence of the limiting parts on the flexibility of the cable is greatly reduced, and the technical problem that the multi-core aluminum alloy conductor cable is easy to twist in the prior art is solved.
Description
Technical Field
The utility model mainly relates to the technical field of cables, in particular to a multi-core aluminum alloy cable.
Background
The copper core cable is still the most widely applied cable product at present, but the copper core cable product in China has the following problems: with the increasing shortage of copper resources, most of the copper conductors in China depend on import, which leads to the restriction of the cable industry in China to developed countries to a certain extent; compared with other conductor materials, the copper price is higher, so that the investment cost of copper core cable items is high; the density of copper is higher, so the communication cable has higher quality, the construction cost is increased, and meanwhile, the aluminum core cable has certain problems in installation and use, for example, a gap is easily formed at a cable joint and even falls off, so that the contact resistance is increased or the risk of electric leakage is caused; or the contact of the conductor is poor, sparks are generated, and fire accidents are caused; the aluminum core conductor is easy to break off or has cracks to cause resistance to be increased, the conductor generates heat to cause potential safety hazards, the aluminum alloy cable can avoid the defects of a copper core cable and an aluminum core photovoltaic cable to a certain extent, and the aluminum alloy cable has the advantages of low price, light weight and the like, so that the aluminum alloy cable is widely applied to almost all fields of the construction industry of China at present.
The existing multi-core aluminum alloy cable is usually placed between aluminum alloy conductors through a plurality of filling strips, the multi-core aluminum alloy conductors can be prevented from moving inside the cable due to the arrangement of the filling strips, but the multi-core aluminum alloy conductors cannot be prevented from being twisted around the axis direction, and a few cables are internally provided with anti-twisting limiting parts, so that the flexibility of the cable is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides a multi-core aluminum alloy cable which is used for solving the technical problems in the background technology.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a multi-core aluminum alloy cable comprises more than three aluminum alloy conductors and is characterized by further comprising limiting pieces arranged among the aluminum alloy conductors; the cross section of the limiting part is formed by sequentially connecting more than three arc line sections at the beginning, each arc line section is attached to the outer edge of the connected aluminum alloy conductor, and the number of the arc line sections is the same as that of the aluminum alloy conductors; the intersection point of two adjacent arc line segments forms a ridge along the length direction of the limiting piece; the edge is provided with a plurality of recesses towards the interior of the limiting part.
Preferably, the cross section of the recess is in the shape of an inverted triangle.
Preferably, the cable is sequentially provided with a sheath and an insulating layer from outside to inside, and the aluminum alloy conductor is wrapped in the insulating layer.
Preferably, a filling strip is further arranged between two adjacent aluminum alloy conductors and the insulating layer.
Preferably, the sheath material is irradiation type low-smoke halogen-free cross-linked polyolefin.
Preferably, the insulating layer material is irradiation type low smoke zero halogen cross-linked polyolefin.
Compared with the prior art, the utility model has the beneficial effects that: according to the multi-core aluminum alloy conductor cable, the limiting pieces are arranged among the plurality of aluminum alloy conductors, so that the plurality of aluminum alloy conductors are prevented from being twisted in the cable, meanwhile, the ridges are provided with the depressions, the influence of the limiting pieces on the flexibility of the cable is greatly reduced, and the technical problem that the multi-core aluminum alloy conductor cable is easy to twist in the prior art is solved.
The present invention will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
fig. 2 is a schematic axial view of the internal structure of the present invention.
In the figure: 1 an aluminum alloy conductor;
2 a limiting part; 201 an arc segment; 202 edges; 203 is sunken;
3, sheathing;
4 an insulating layer;
5 filling the strip.
Detailed Description
In order to facilitate an understanding of the utility model, the utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the utility model are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the utility model.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, the utility model provides a multi-core aluminum alloy cable, which comprises more than three aluminum alloy conductors 1 and limiting parts 2 arranged among the aluminum alloy conductors 1, wherein the cross section of each limiting part 2 is formed by sequentially connecting more than three arc segments 201 at the beginning, each arc segment 201 is attached to the outer edge of the aluminum alloy conductor 1 connected with the arc segment 201, and the number of the arc segments 201 is the same as that of the aluminum alloy conductors 1; an intersection point of two adjacent arc segments 201 forms an edge 202 along the length direction of the limiting member 2, and a plurality of recesses 203 are formed on the edge 202 towards the inside of the limiting member 2.
In the present embodiment, the limiting member 2 is provided for a multi-core aluminum alloy cable composed of three or more aluminum alloy conductors 1, and a cavity can be formed in the middle of the three or more aluminum alloy conductors 1, and the cavity can be used to accommodate the limiting member 2.
In this embodiment, the cross section of the limiting member 2 is formed by sequentially connecting more than three arc segments 201 at the beginning, each arc segment 201 is attached to the outer edge of the connected aluminum alloy conductor 1, that is, the outer edge of the limiting member 2 is attached to the outer edge of each connected aluminum alloy conductor 1, at this time, the limiting member 2 and the aluminum alloy conductor 1 have the largest contact area, and the effect of preventing the plurality of aluminum alloy conductors 1 from twisting around the axis direction is also the best.
In the present embodiment, in view of the requirement of the cable for good flexibility, when the bending direction of the limiting member 2 is perpendicular to the edge 202 due to the existence of the edge 202, the edge 202 may reduce the flexibility of the entire cable due to its own tensile/anti-compression characteristics, and especially when the limiting member 2 is completely attached to the surrounding aluminum alloy conductor 1, the tensile/anti-compression capability of the edge 202 may be enlarged due to the limited space, so that a plurality of recesses 203 are provided on the edge 202 towards the inside of the limiting member 2, the existence of the recesses 203 allows the recesses 203 to be opened when the edge 202 is pulled, and the recesses 203 to be closed when the edge 202 is compressed, thereby reducing the influence of the limiting member 2 on the flexibility of the cable.
According to the multi-core aluminum alloy cable, the aluminum alloy conductors 1 are easy to twist in the cable in the direction around the axis, the limiting parts 2 are arranged among the aluminum alloy conductors 1, so that the aluminum alloy conductors 1 are prevented from twisting in the cable, and meanwhile, the recesses 203 are formed in the edges 202, so that the influence of the limiting parts 2 on the flexibility of the cable is greatly reduced.
In view of the specific implementation of the recess 203, based on the above embodiment, the present invention provides a preferable technical solution, the cross section of the recess 203 is an inverted triangle, in which, when the rib 202 is pulled, two ends of the recess 203 can be unfolded around the end points of the triangle, and when the rib 202 is pressed, two ends of the recess 203 can be closed around the end points of the triangle, so as to reduce the influence on the flexibility of the cable to the maximum extent, it can be understood that, when the cross section of the recess 203 is a rectangle or other shapes, the length of the bottom exists, and when the rib 202 is pulled/pressed, the length of the bottom will also be pulled/pressed, thereby generating the resistance, so the effect is not as good as that of the inverted triangle.
In view of the realization of the overall structure of the cable, on the basis of the above embodiment, the utility model further provides a preferable technical scheme, the cable is sequentially provided with the sheath 3 and the insulating layer 4 from outside to inside, and the aluminum alloy conductor 1 is wrapped in the insulating layer 4.
In view of avoiding the sliding or twisting of the aluminum alloy conductor 1 in the cable, on the basis of the above embodiment, the present invention further provides a preferred technical solution, and a filler strip 5 is further disposed between two adjacent aluminum alloy conductors 1 and the insulating layer 4.
Considering the specific implementation of the material of the sheath 3, on the basis of the above embodiment, the utility model provides a preferable technical scheme, the material of the sheath 3 is irradiation type low-smoke zero-halogen cross-linked polyolefin, the material has good flame retardant effect, no halogen acid gas is emitted during combustion, the release amount of toxic and corrosive gases is very little, the concentration of generated smoke is extremely low, namely, the secondary hazard is small, and the utility model is suitable for some public occasions.
In view of the specific implementation of the material of the insulating layer 4, on the basis of the above embodiment, the present invention further provides a preferred technical solution, the material of the insulating layer 4 is irradiation type low smoke zero halogen cross-linked polyolefin, and the reason for selecting the material is the same as the material selection of the sheath 3.
The utility model is described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the above embodiments, and it is within the scope of the utility model to adopt the method concept and technical solution of the utility model to make such insubstantial modifications, or to directly apply the concept and technical solution of the utility model to other applications without any modification.
Claims (6)
1. A multi-core aluminum alloy cable comprises more than three aluminum alloy conductors and is characterized by further comprising limiting pieces arranged among the aluminum alloy conductors;
the cross section of the limiting part is formed by sequentially connecting more than three arc line sections at the beginning, each arc line section is attached to the outer edge of the connected aluminum alloy conductor, and the number of the arc line sections is the same as that of the aluminum alloy conductors;
the intersection point of two adjacent arc line segments forms a ridge along the length direction of the limiting piece;
the edge is provided with a plurality of recesses towards the interior of the limiting part.
2. The multi-core aluminum alloy cable as claimed in claim 1, wherein the cross section of the recess is an inverted triangle.
3. The multi-core aluminum alloy cable as claimed in claim 1, wherein the cable is sequentially provided with a sheath and an insulating layer from outside to inside, and the aluminum alloy conductor is wrapped in the insulating layer.
4. The multi-core aluminum alloy cable as claimed in claim 3, wherein a filler strip is further disposed between two adjacent aluminum alloy conductors and the insulating layer.
5. The multi-core aluminum alloy cable according to claim 3, wherein the sheath material is an irradiated low-smoke zero-halogen cross-linked polyolefin.
6. The multi-core aluminum alloy cable according to claim 3, wherein the insulating layer material is irradiation type low smoke zero halogen cross-linked polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122230452.7U CN216053969U (en) | 2021-09-15 | 2021-09-15 | Multi-core aluminum alloy cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122230452.7U CN216053969U (en) | 2021-09-15 | 2021-09-15 | Multi-core aluminum alloy cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216053969U true CN216053969U (en) | 2022-03-15 |
Family
ID=80537252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122230452.7U Active CN216053969U (en) | 2021-09-15 | 2021-09-15 | Multi-core aluminum alloy cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216053969U (en) |
-
2021
- 2021-09-15 CN CN202122230452.7U patent/CN216053969U/en active Active
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