CN218159648U - Medium-strength aluminum alloy stranded wire - Google Patents
Medium-strength aluminum alloy stranded wire Download PDFInfo
- Publication number
- CN218159648U CN218159648U CN202221704410.0U CN202221704410U CN218159648U CN 218159648 U CN218159648 U CN 218159648U CN 202221704410 U CN202221704410 U CN 202221704410U CN 218159648 U CN218159648 U CN 218159648U
- Authority
- CN
- China
- Prior art keywords
- fan
- conductive layer
- reinforcing
- core
- cores
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Non-Insulated Conductors (AREA)
Abstract
The utility model relates to a medium-strength aluminum alloy stranded wire, which comprises a central reinforcing unit and a conductive unit; the central reinforcing unit comprises a circular reinforcing core and fan-shaped reinforcing cores, the circular reinforcing core is arranged in the center, the fan-shaped reinforcing cores are twisted on the outer side of the circular reinforcing core, the straight edges of two adjacent fan-shaped reinforcing cores are tightly attached, and the fan-shaped reinforcing cores are twisted to form a ring with the inner diameter matched with that of the circular reinforcing core; the conductive unit comprises a first conductive layer and a second conductive layer, the first conductive layer is arranged on the outer side of the fan-shaped reinforcing core, and the second conductive layer is arranged on the outer side of the first conductive layer. The utility model discloses strengthen the mode that the unit adopted fan-shaped enhancement core and circular enhancement core combination with the center, make the structure of whole center enhancement unit inseparabler, diameter after the transposition is littleer, can increase the quantity of wire in the pencil with the model, increases the sectional area of wire, reduces the resistance of wire, reduces the power loss of whole pencil.
Description
Technical Field
The utility model belongs to the technical field of the power transmission technique and specifically relates to indicate a moderate strength aluminum alloy stranded conductor.
Background
The high-conductivity medium-strength aluminum alloy stranded wire mainly faces national and regional customers in key areas at home and abroad, belongs to the field of power transmission, and is a special aluminum alloy wire with excellent mechanical property and electrical conductivity. The product has excellent conductivity and bearing performance, can reduce the loss problem of the power transmission line, and is mainly applied to overhead power transmission lines with 500kV or below.
The loss problem of whole circuit has direct relation with the structure of pencil, and the sectional area of wire in the pencil is bigger, and the resistance of whole wire just is littleer, and whole pencil will reduce the loss of electric energy in transmission process, consequently, need the structure of rationally arranging whole pencil, reduce the loss of electric energy.
In the prior art, a medium-strength aluminum alloy stranded wire usually adopts a round galvanized steel core as a reinforcing core, so that the whole cable has poor corrosion resistance and is difficult to adapt to the environment with severe conditions; meanwhile, in order to improve the strength, a plurality of circular galvanized steel cores are used as internal reinforcing cores in a stranding mode, and the diameter of the internal reinforcing cores of the structure is larger. Fewer wires are arranged in the wire harness with the same diameter, so that the sectional area of the wires is reduced, the resistance of the wires is increased, and the electric energy loss is increased.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to solve the technical problem that the diameter of the strengthening core structure of overcoming intensity aluminum alloy stranded conductor among the prior art is great, and the sectional area that can make wire in the same model pencil is littleer, leads to more electric energy loss's defect.
In order to solve the technical problem, the utility model provides a medium-strength aluminum alloy stranded wire, which comprises a central reinforcing unit and a conductive unit;
the central reinforcing unit comprises a circular reinforcing core and fan-shaped reinforcing cores, the circular reinforcing core is arranged in the center, a plurality of fan-shaped reinforcing cores are twisted on the outer side of the circular reinforcing core, the straight edges of two adjacent fan-shaped reinforcing cores are tightly attached, and the plurality of fan-shaped reinforcing cores are twisted to form a ring shape with the inner diameter matched with that of the circular reinforcing core;
the conductive unit comprises a first conductive layer and a second conductive layer, the first conductive layer is arranged on the outer side of the fan-shaped reinforced core, and the second conductive layer is arranged on the outer side of the first conductive layer.
In an embodiment of the present invention, the first conductive layer includes a plurality of first wires, and a plurality of the first wires are twisted outside the fan-shaped reinforcing core to form the first conductive layer.
In an embodiment of the present invention, the cross-section of the first wire is trapezoidal, and the plurality of first wires are twisted to form a circle.
In an embodiment of the present invention, the second conductive layer includes a plurality of second wires, and a plurality of second wires are twisted outside the first conductive layer to form the second conductive layer.
In an embodiment of the present invention, the cross-section of the second wire is circular, and the plurality of second wires are twisted to form a circle.
In an embodiment of the invention, the second conductive layer is provided with two layers.
In an embodiment of the present invention, a first corrosion prevention layer is disposed between the first conductive layer and the central reinforcing unit.
In an embodiment of the present invention, a second corrosion prevention layer is disposed between the fan-shaped reinforcing core and the circular reinforcing core and between the plurality of fan-shaped reinforcing cores.
In an embodiment of the present invention, the center of the fan-shaped reinforcing core and the center of the circular reinforcing core are steel cores, and the outside of the steel core is coated with metal aluminum.
Compared with the prior art, the technical scheme of the utility model have following advantage:
a well intensity aluminum alloy stranded conductor, inside center strengthen the mode that the core adopted circular and fan-shaped combination, strengthen the core with the mode setting of transposition in a week of circular enhancement core with fan-shaped, closely laminate between the core is strengthened at whole center, reduced the diameter of whole center and strengthened the core, can increase the quantity of wire in the pencil with the model, increase the sectional area of wire, reduce the resistance of wire, reduce the electric energy loss of whole pencil.
Drawings
In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, in conjunction with the accompanying drawings, in which
Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the central core of FIG. 1;
FIG. 3 is a schematic structural diagram of the conductive unit in FIG. 1;
fig. 4 is a schematic overall structure diagram of a second embodiment of the present invention;
description reference numbers indicate: 1. a central reinforcing unit; 2. a conductive unit; 3. a first anticorrosive layer; 4. a second anticorrosive layer; 11. a circular reinforcing core; 12. a sector shaped reinforcement core; 21. a first conductive layer; 22. a second conductive layer; 211. a first conductive line; 221. a second conductive line.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
The first embodiment is as follows:
referring to fig. 1, the utility model discloses a medium-strength aluminum alloy stranded wire, which comprises a central reinforcing unit 1 and a conductive unit 2; the central reinforcing unit 1 is used for improving the tensile strength of the whole wire harness, the central reinforcing unit 1 comprises a circular reinforcing core 11 and fan-shaped reinforcing cores 12, the circular reinforcing core 11 is arranged in the center, the fan-shaped reinforcing cores 12 are twisted outside the circular reinforcing core 11, the straight edges of two adjacent fan-shaped reinforcing cores 12 are tightly attached, and the fan-shaped reinforcing cores 12 are twisted to form a ring with the inner diameter matched with that of the circular reinforcing core 11;
specifically, adopt the mode of circular reinforcing core 11 and the combination of fan-shaped reinforcing core 12, a week of circular reinforcing core 11 is laminated with the arc limit of fan-shaped reinforcing core 12, and secondly closely laminating forms a circular again between the straight flange of a plurality of fan-shaped reinforcing cores 12, has increased a lantern ring in the outside of circular reinforcing core 11 in other words to all hug closely between this lantern ring and the inside circular reinforcing core 11, form the isolation with the external world. On one hand, the entry of foreign matters can be prevented, and the corrosion resistance of the whole central reinforcing unit 1 is improved; on the other hand, the combination of the circular reinforcing cores 11 and the fan-shaped reinforcing cores 12 has a more compact structure, so that the diameter of the whole central reinforcing unit 1 is reduced, and more conductive layers can be added to the whole wire harness. Secondly, the central reinforcing unit 1 adopts a combination of the circular reinforcing cores 11 and the fan-shaped reinforcing cores 12, so that the tensile strength of the whole wire harness can be increased to a certain extent.
The conductive unit 2 includes a first conductive layer 21 and a second conductive layer 22, the first conductive layer 21 being disposed outside the fan-shaped reinforcing core 12, and the second conductive layer 22 being disposed outside the first conductive layer 21.
Specifically, the outside that unit 1 was strengthened at the center is provided with two-layer conducting layer, can increase the number of piles and the thickness of conducting layer on the basis that unit 1's diameter is strengthened at the center reduces, guarantees to possess more conducting layers in the pencil with the model, increases the cross-sectional area of conducting layer in the whole pencil, can reduce the resistance of pencil, reduces the power consumption of whole pencil.
Further, the first conductive layer 21 includes a plurality of first conductive wires 211, and the plurality of first conductive wires 211 are twisted outside the fan-shaped reinforced core 12 to form the first conductive layer 21; the cross-sectional shape of the first conductive lines 211 is trapezoidal, and a plurality of the first conductive lines 211 are twisted to form a circle.
As can be seen, the first conductive layer 21 is formed by twisting a plurality of first conductive wires 211, specifically, the first conductive wires 211 are molded lines, the cross-sectional area thereof is a trapezoid structure, the conductive wires of the trapezoid structure are tightly attached to each other, and a circular ring shape is formed and sleeved on the outer side of the central reinforcing unit 1; by adopting the structure, on one hand, external filth substances can be prevented from entering the central reinforcing unit 1, the corrosion resistance of the whole wire harness is improved, and the service life of the whole wire harness is prolonged; on the other hand, the wire of the trapezoidal-shaped wire structure can reduce the diameter of the whole wire harness.
Further, the second conductive layer 22 includes a plurality of second conductive lines 221, and the plurality of second conductive lines 221 are stranded outside the first conductive layer 21 to form the second conductive layer 22; the cross section of the second conductive line 221 is circular, and a plurality of second conductive lines 221 are twisted to form a circle, and the second conductive layer 22 is provided with two layers.
It can be seen that the second conductive layer 22 is formed by twisting a plurality of second conductive wires 221, as with the first conductive layer 21, and different from the first conductive layer 21, the second conductive wires 221 in the second conductive layer 22 have a circular cross-section and are formed by twisting a common round wire. Preferably, the second conductive layer 22 is provided with two layers, and the thickness of the second conductive layer 22 is increased, so that the cross-sectional area of the whole wiring harness conducting wire can be increased, and the loss of power transmission can be reduced.
In the production process of the wire harness, the adopted molded lines and the common round lines have advantages and disadvantages respectively, and firstly, the round lines have the advantages that: the production process is simple, the production difficulty is low, and the twisting of the wire harness in the manufacturing process is facilitated; the disadvantages of round wire: the wire with the same specification is large in diameter and high in wind resistance, and a large outer layer gap is easy to accumulate water vapor in humid weather, so that ice coating is increased; secondly, the advantages of the profile: the structure of the wire can be designed without the regular stranding rule, so that the specification and the structure of the wire are flexible and various, and more complex requirements are met; the diameter of the wire can be reduced, and the wind resistance is reduced. The smooth surface can increase the difficulty of water vapor adhesion, thereby reducing the thickness of ice coating; disadvantages of the profile: the production process is complex and the production difficulty is high. The whole strand can be selected in the production process according to the cost and the production requirement.
As the preferred embodiment of the present invention, the above-mentioned materials of the first wire 211 and the second wire 221 are aluminum alloys, and have better conductivity and tensile strength, and the materials are easily obtained, so that the manufacturing cost of the whole wire harness can be reduced.
Further, a first anticorrosive layer 3 is arranged between the first conductive layer 21 and the central reinforcing unit 1; the second anticorrosive layer 4 is provided between the fan-shaped reinforcing cores 12 and the circular reinforcing core 11 and between the plurality of fan-shaped reinforcing cores 12.
Specifically, the first anticorrosive layer 3 can prevent external foreign matters from corroding the central reinforcing member through the first conductive layer 21, prolong the service life of the central reinforcing member and ensure the tensile strength of the whole wire harness; the second anticorrosive layer 4 is disposed inside the central reinforcing core, specifically between two adjacent fan-shaped reinforcing cores 12 and between the fan-shaped reinforcing cores 12 and the round wire reinforcing core.
As the utility model discloses an optimal selection scheme, first anticorrosive coating 3 is high temperature resistant anticorrosive oleamen with second anticorrosive coating 4, can prevent effectively that steam and other materials from getting into the inside of pencil, to the inside corruption that causes of pencil, improves the corrosion protection of pencil.
Furthermore, as the preferred scheme of the utility model, the materials used by the central reinforcing unit 1 are all aluminum-clad steel; specifically, the centers of the fan-shaped reinforcing core 12 and the circular reinforcing core 11 are steel cores, and the outer sides of the steel cores are coated with metal aluminum. The aluminum-clad steel has the advantages of higher strength, better corrosion resistance, better electrical property than galvanized steel wires and the like, and has great design flexibility due to a great number of combination choices of the thickness of the aluminum layer and the strength of the steel wires; has better performances in the aspects of mechanical strength, energy conservation, consumption reduction, corrosion prevention and the like.
Example two:
referring to fig. 3, another embodiment of the present invention is different from the first embodiment in that the trapezoidal shaped profile in the first conductive layer 21 is replaced with an "SZ" profile; specifically, a plurality of SZ-shaped molded lines are mutually twisted on the outer side of the central reinforcing unit 1, and any two SZ-shaped molded lines are mutually meshed; the structure and material of the other parts are the same as those of the first embodiment, and are not described in detail herein.
The trapezoid-shaped line is replaced by the 'SZ' shaped line, the pull-weight ratio of the whole wire is larger, the sag characteristic of the wire is better, the same 'SZ' shaped line is the same as the trapezoid-shaped line, the whole first conducting layer 21 formed after twisting is in a circular ring shape, and compared with a common round line, the diameter of the first conducting layer is also smaller; of course, the production process of the entire wire harness is more complicated.
To sum up, the utility model discloses a medium strength aluminum alloy stranded wire, with central reinforced unit 1 adopt the mode of fan-shaped reinforced core 12 and circular reinforced core 11 combination, make the structure of whole central reinforced unit 1 inseparabler, the diameter after the transposition is littleer, can increase the quantity of wire in the pencil of the same type, increase the sectional area of wire, reduce the resistance of wire, reduce the electric energy loss of whole pencil; meanwhile, the whole central reinforcing unit 1 is made of aluminum-clad steel and replaces the traditional galvanized steel wire and the common aluminum-clad steel wire as reinforcing cores; has better performances in the aspects of mechanical strength, energy conservation, consumption reduction, corrosion prevention and the like.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.
Claims (9)
1. The utility model provides a medium strength aluminum alloy stranded conductor which characterized in that: comprises a central reinforcing unit and a conductive unit;
the central reinforcing unit comprises a circular reinforcing core and fan-shaped reinforcing cores, the circular reinforcing core is arranged in the center, a plurality of fan-shaped reinforcing cores are twisted on the outer side of the circular reinforcing core, the straight edges of two adjacent fan-shaped reinforcing cores are tightly attached, and the plurality of fan-shaped reinforcing cores are twisted to form a ring shape with the inner diameter matched with that of the circular reinforcing core;
the conductive unit comprises a first conductive layer and a second conductive layer, the first conductive layer is arranged on the outer side of the fan-shaped reinforced core, and the second conductive layer is arranged on the outer side of the first conductive layer.
2. The medium-strength aluminum alloy stranded wire of claim 1, wherein: the first conducting layer comprises a plurality of first conducting wires, and the first conducting wires are stranded on the outer side of the fan-shaped reinforced core to form the first conducting layer.
3. The medium-strength aluminum alloy stranded wire of claim 2, wherein: the cross section of the first wire is trapezoidal, and the plurality of first wires are twisted to form a circle.
4. The medium-strength aluminum alloy stranded wire of claim 1, wherein: the second conducting layer comprises a plurality of second conducting wires, and the second conducting wires are stranded on the outer side of the first conducting layer to form the second conducting layer.
5. The medium-strength aluminum alloy stranded wire of claim 4, wherein: the cross section of the second wire is circular, and a plurality of second wires are twisted to form a circle.
6. The medium-strength aluminum alloy stranded wire of claim 1, wherein: the second conductive layer is provided with two layers.
7. The medium-strength aluminum alloy stranded wire of claim 1, wherein: a first anticorrosive layer is arranged between the first conductive layer and the central reinforcing unit.
8. The medium-strength aluminum alloy stranded wire of claim 1, wherein: and second anticorrosive layers are arranged between the fan-shaped reinforced cores and the circular reinforced cores and between the fan-shaped reinforced cores.
9. The medium-strength aluminum alloy stranded wire of claim 1, wherein: the center of the sector reinforcing core and the center of the circular reinforcing core are steel cores, and the outer sides of the steel cores are coated with metal aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221704410.0U CN218159648U (en) | 2022-06-28 | 2022-06-28 | Medium-strength aluminum alloy stranded wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221704410.0U CN218159648U (en) | 2022-06-28 | 2022-06-28 | Medium-strength aluminum alloy stranded wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218159648U true CN218159648U (en) | 2022-12-27 |
Family
ID=84591956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221704410.0U Active CN218159648U (en) | 2022-06-28 | 2022-06-28 | Medium-strength aluminum alloy stranded wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218159648U (en) |
-
2022
- 2022-06-28 CN CN202221704410.0U patent/CN218159648U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201600934U (en) | Strengthened core expanded diameter conductor | |
| CN201758012U (en) | Guide line with carbon fiber composite core | |
| CN102103896A (en) | Highly conductive heat-resistant aluminum conductor and production process thereof | |
| CN101051536A (en) | Unequal diameter round single line composite twisted layer conductor | |
| CN218159648U (en) | Medium-strength aluminum alloy stranded wire | |
| CN216928113U (en) | Novel tin-plated copper stranded wire | |
| CN202025567U (en) | Super corrosion-resistant type conducting wire | |
| CN201429999Y (en) | Multiple capacity conducting wire with carbon fiber core | |
| CN205645376U (en) | Compound core aluminium molded lines aerial [insulated] cable that strengthens of high performance carbon fiber | |
| CN210606715U (en) | Novel super corrosion-resistant overhead transmission conductor | |
| CN111128452A (en) | Corrosion-resistant fireproof cable | |
| CN209328594U (en) | High current-carrying capacity aluminium alloy conductor for overhead transmission line | |
| CN201465585U (en) | Aramid yarn mandrel aerial cable | |
| CN221529563U (en) | High-conductivity steel-cored aluminum strand | |
| CN202384084U (en) | Carbon fiber composite core soft aluminum stranded wire | |
| CN217767880U (en) | Low-relaxation clearance type wire | |
| CN215265615U (en) | Salt-fog-resistant and moisture-resistant offshore wind power cable | |
| CN201107442Y (en) | Structure tight type optical fiber composite overhead ground wire | |
| WO2020037657A1 (en) | High-strength and corrosion-resistant optical fiber composite overhead ground wire in aluminum-clad pbt structure | |
| CN213459181U (en) | Super heat-resistant aluminum alloy wire with maximum allowable working temperature of 210 DEG C | |
| CN212182029U (en) | Special high-torsion-resistance composite cable for wind driven generator | |
| CN220753095U (en) | Combined conductor for medium-voltage cable | |
| CN218957413U (en) | Overhead insulated cable with good abrasion resistance effect for electrical engineering | |
| CN209766066U (en) | High-strength flat filament structure | |
| CN213277586U (en) | TV transposition type arrangement video monitoring area shielding elevator cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |