CN220305997U - Multilayer composite enamelled round copper wire - Google Patents
Multilayer composite enamelled round copper wire Download PDFInfo
- Publication number
- CN220305997U CN220305997U CN202321882334.7U CN202321882334U CN220305997U CN 220305997 U CN220305997 U CN 220305997U CN 202321882334 U CN202321882334 U CN 202321882334U CN 220305997 U CN220305997 U CN 220305997U
- Authority
- CN
- China
- Prior art keywords
- layer
- copper
- copper layer
- aluminum core
- core wire
- 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.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 61
- 229910052802 copper Inorganic materials 0.000 claims abstract description 61
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 11
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 121
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 29
- 229910052799 carbon Inorganic materials 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 239000011247 coating layer Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 239000004831 Hot glue Substances 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 description 20
- 229910052782 aluminium Inorganic materials 0.000 description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 19
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001398 aluminium Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model relates to the technical field of enameled wires, in particular to a multilayer composite enameled round copper wire, which comprises an aluminum core wire positioned at the innermost layer and a polyvinyl chloride sheath positioned at the outermost layer, wherein a first copper layer is arranged on the outer surface of the aluminum core wire, a second copper layer is arranged on the outer surface of the first copper layer, a first insulating layer is arranged between the outer surface of the aluminum core wire and the first copper layer, a second insulating layer is arranged between the first copper layer and the second copper layer, the insulating capability between the aluminum core wire and the first copper layer is achieved by adding the first insulating layer between the aluminum core wire and the first copper layer, the direct contact between the aluminum core wire and the first copper layer is avoided, the first copper layer is prevented from reducing the resistance of the aluminum core wire, and the damage of electrical equipment is caused by overlarge voltage passing through the aluminum core wire at the same voltage.
Description
Technical Field
The utility model relates to the technical field of enameled wires, in particular to a multilayer composite enameled round copper wire.
Background
Enameled wire is a main variety of winding wire, which is formed by two parts of conductor and insulating layer, and bare wire is annealed and softened, painted for many times and baked.
Among the prior art, a compound enamelled round copper wire of multilayer as proposed in patent application number "CN201821135490.6", including the aluminium heart yearn, set up in the first copper layer of this aluminium heart yearn surface, set up in the second copper layer of this first copper layer surface, through setting up one deck second copper layer outside copper-clad aluminium wire (i.e. aluminium heart yearn and first copper layer), play the effect that increases enamelled round copper wire bulk strength.
However, in the prior art, as the enamelled round copper wire proposed in the patent application number CN201821135490.6, the first copper layer is directly contacted with the outer surface of the aluminum core wire, so that the resistance of the aluminum core wire is reduced, the current passing through the aluminum core wire is larger under the same voltage, and the connected electronic equipment is easily damaged.
Disclosure of Invention
The utility model aims to provide a multilayer composite enamelled round copper wire so as to solve the problems in the background art.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a compound enamelled round copper line of multilayer, is including being located the aluminium heart yearn of inlayer and being located outermost polyvinyl chloride sheath, the surface of aluminium heart yearn is provided with first copper layer, and the surface on first copper layer is provided with the second copper layer, be provided with first insulating layer between the surface on aluminium heart yearn and the first copper layer, be provided with the second insulating layer between first copper layer and the second copper layer.
The outer surface of the second copper layer is provided with carbon wires in an annular array, the outer surface of the second copper layer is provided with a filling layer made of EVA hot melt adhesive material, the outer surface of the carbon wires is arc-shaped, and the outer surfaces of the carbon wires protrude out of the filling layer.
Preferably, the first insulating layer is made of PBT insulating material, and the thickness of the first insulating layer is 60-80 mu m.
Preferably, the material of the second insulating layer is heat-conducting silica gel, and the thickness of the second insulating layer is 30-60 μm.
Preferably, the inner surface of the polyvinyl chloride sheath is provided with a compression-resistant layer made of glass fiber yarn materials, and the thickness of the compression-resistant layer is 120-180 mu m.
Preferably, the inner surface of the compression-resistant layer is provided with a coating layer made of polyimide material, the coating layer is arranged on the outer surfaces of the carbon wires and the filling layer, and the thickness of the coating layer is 50-60 μm.
Preferably, the compression-resistant layer is provided with a plurality of arc shrinkage inner holes uniformly, the inner surface of the coating layer is provided with arc matching grooves in an annular array, and the arc matching grooves and the carbon wires are matched with the parts of the carbon wires protruding out of the filling layer.
The utility model has the beneficial effects that:
through adding first insulating layer between aluminium heart yearn and first copper layer, played the insulating ability between aluminium heart yearn and the first copper layer, avoid aluminium heart yearn and first copper layer direct contact, prevent that first copper layer from making aluminium heart yearn's resistance reduce, make the too big damage that causes electrical equipment through aluminium heart yearn's voltage at the same voltage, and add the second insulating layer between first copper layer and second copper layer, further promote insulating protection and the ability of preventing electric leakage, the outside carbon wire of second insulating layer plays the effect that promotes toughness, through set up carbon wire and the filling layer of being made by EVA hot melt adhesive material outside the second copper layer simultaneously, can play the fixed action to the carbon wire, and the connection effect between second copper layer and the coating, avoid carbon wire position to take place the skew.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic illustration of the connection of the second copper layer and the cladding layer of FIG. 1 in accordance with the present utility model;
fig. 3 is a schematic view of the structure of the cladding layer of fig. 1 according to the present utility model.
Reference numerals in the drawings are as follows:
1. the aluminum core wire, 2, a first copper layer, 3, a second copper layer, 4, a first insulating layer, 5, a second insulating layer, 6, a carbon wire, 7, a filling layer, 8, a compression layer, 9, a coating layer, 10, a polyvinyl chloride sheath, 11, an arc shrinkage inner hole, 12 and an arc fit groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a compound enamelled round copper line of multilayer, is including being located the aluminium heart yearn 1 of inlayer and being located outermost polyvinyl chloride sheath 10, the surface of aluminium heart yearn 1 is provided with first copper layer 2, and the surface of first copper layer 2 is provided with second copper layer 3, be provided with first insulating layer 4 between the surface of aluminium heart yearn 1 and the first copper layer 2, be provided with second insulating layer 5 between first copper layer 2 and the second copper layer 3.
The outer surface of the second copper layer 3 is provided with carbon wires 6 in an annular array, the outer surface of the second copper layer 3 is provided with a filling layer 7 made of EVA hot melt adhesive material, the outer surface of the carbon wires 6 is arc-shaped, and the outer surface of the carbon wires 6 protrudes out of the filling layer 7.
As shown in fig. 1, the outermost polyvinyl chloride sheath 10 is provided with a paint film, so that the outermost polyvinyl chloride sheath 10 has better protection capability, the polyvinyl chloride material can adapt to various complex environments, such as humid, high temperature, acid and alkali environments, and the like, effectively provides rust protection for the electric wire, and simultaneously improves the mechanical strength of the electric wire, and the carbon wire 6 plays a role of increasing the overall toughness of the enameled round copper wire, so that the electric wire is prevented from being easily strained by stress.
The first insulating layer 4 is made of PBT insulating material, and the thickness of the first insulating layer 4 is 60-80 mu m.
As shown in fig. 1, the first insulating layer 4 made of the PBT insulating material has the characteristics of cracking impact resistance, electricity resistance, good wear resistance, low friction coefficient, oil resistance, corrosion resistance and the like, and in addition, has thermal stability, can play a better role in protecting the material directly contacting the aluminum core wire 1, has good fluidity and formability, and can be processed through injection molding, extrusion and the like, so that the production process of the enamelled copper wire in the application is simpler and more convenient.
The second insulating layer 5 is made of heat-conducting silica gel, and the thickness of the second insulating layer 5 is 30-60 mu m.
The heat conduction silica gel is prepared by mixing organic silica gel serving as a main body, polymer materials such as filling materials and heat conduction materials, has good heat conduction and electrical insulation properties, and the second insulating layer 5 prepared by the heat conduction silica gel has excellent heat conduction and electrical insulation properties, and meanwhile has the advantages of being softer in material, high in elasticity and toughness, and convenient to bend and curl an enamelled copper wire.
The inner surface of the polyvinyl chloride sheath 10 is provided with a compression-resistant layer 8 made of glass fiber yarn materials, and the thickness of the compression-resistant layer 8 is 120-180 mu m.
The glass fiber yarn has the advantages of high tensile strength, small elongation, high elastic coefficient, good rigidity, large elongation in the elastic limit and high tensile strength, so that the glass fiber yarn absorbs impact energy, is inorganic fiber, has incombustibility and good chemical resistance, and has good tensile resistance of the compression layer 8 manufactured by the glass fiber yarn, and can protect the internal aluminum core wire 1 by absorbing the impact energy, and meanwhile, has the functions of fire prevention and flame retardance.
The inner surface of the compression-resistant layer 8 is provided with a coating layer 9 made of polyimide material, the coating layer 9 is arranged on the outer surfaces of the carbon wires 6 and the filling layer 7, and the thickness of the coating layer 9 is 50-60 mu m.
As shown in fig. 1, the coating layer 9 made of polyimide is used for coating, so that the high temperature resistance of the whole enamelled copper wire is further improved.
The inside of compressive layer 8 has evenly offered a plurality of arc shrink holes 11, and the arc cooperation recess 12 that is annular array is offered to the internal surface of coating 9, and arc cooperation recess 12 and the part that carbon wire 6 protrusion was in the filling layer 7 outside looks adaptation.
As shown in fig. 1 and 3, through the arc shrinkage inner hole 11 formed in the compression-resistant layer 8, the shrinkage capability of the compression-resistant layer during bending of the enameled copper wire is improved, and the arc matching groove 12 formed in the inner side of the cladding layer 9 and the carbon wires 6 are correspondingly designed, so that the part of each carbon wire 6 protruding out of the filling layer 7 is correspondingly attached to the inner side of the arc matching groove 12, and the positioning effect on the carbon wires 6 is achieved.
Compared with the related art, the multi-layer composite enamelled round copper wire provided by the utility model has the following structure
The beneficial effects are that:
through adding first insulating layer 4 between aluminium heart yearn 1 and first copper layer 2, the insulating ability to between aluminium heart yearn 1 and the first copper layer 2 has been played, avoid aluminium heart yearn 1 and first copper layer 2 direct contact, prevent that first copper layer 2 from making the resistance of aluminium heart yearn 1 reduce, make the too big damage that causes electrical equipment through the voltage of aluminium heart yearn 1 at the same voltage, and add second insulating layer 5 between first copper layer 2 and second copper layer 3, further promote insulating protection and the ability of preventing electric leakage, the outside carbon wire 6 of second insulating layer 5 plays the effect that promotes toughness, through setting up carbon wire 6 and the filling layer 7 of being made by EVA hot melt adhesive material in the outside of second copper layer 3 simultaneously, can play the fixed action to carbon wire 6, and the connected action to between second copper layer 3 and the cladding layer 9, avoid carbon wire 6 position to take place the skew.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (6)
1. The multilayer composite enamelled round copper wire comprises an aluminum core wire (1) positioned at the innermost layer and a polyvinyl chloride sheath (10) positioned at the outermost layer, wherein a first copper layer (2) is arranged on the outer surface of the aluminum core wire (1), a second copper layer (3) is arranged on the outer surface of the first copper layer (2), and the multilayer composite enamelled round copper wire is characterized in that a first insulating layer (4) is arranged between the outer surface of the aluminum core wire (1) and the first copper layer (2), and a second insulating layer (5) is arranged between the first copper layer (2) and the second copper layer (3);
the outer surface of the second copper layer (3) is provided with carbon wires (6) which are in an annular array, the outer surface of the second copper layer (3) is provided with a filling layer (7) made of EVA hot melt adhesive materials, the outer surface of the carbon wires (6) is arc-shaped, and the outer surface of the carbon wires (6) protrudes out of the filling layer (7).
2. The multilayer composite enameled round copper wire according to claim 1, characterized in that the first insulating layer (4) is made of PBT insulating material, and the thickness of the first insulating layer (4) is 60-80 μm.
3. The multi-layer composite enameled round copper wire according to claim 2, wherein the material of the second insulating layer (5) is heat-conducting silica gel, and the thickness of the second insulating layer (5) is 30-60 μm.
4. The multilayer composite enamelled round copper wire according to claim 1, characterized in that the inner surface of the polyvinyl chloride sheath (10) is provided with a compression layer (8) made of glass fiber yarn material, the thickness of the compression layer (8) is 120-180 μm.
5. The multi-layer composite enameled round copper wire according to claim 4, wherein a coating layer (9) made of polyimide material is arranged on the inner surface of the compression-resistant layer (8), the coating layer (9) is arranged on the outer surfaces of the carbon wire (6) and the filling layer (7), and the thickness of the coating layer (9) is 50-60 μm.
6. The multi-layer composite enameled round copper wire according to claim 5, wherein a plurality of arc-shaped shrinkage inner holes (11) are uniformly formed in the compression-resistant layer (8), arc-shaped matching grooves (12) which are in an annular array are formed in the inner surface of the cladding layer (9), and the arc-shaped matching grooves (12) are matched with the parts, protruding out of the filling layer (7), of the carbon wires (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321882334.7U CN220305997U (en) | 2023-07-18 | 2023-07-18 | Multilayer composite enamelled round copper wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321882334.7U CN220305997U (en) | 2023-07-18 | 2023-07-18 | Multilayer composite enamelled round copper wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220305997U true CN220305997U (en) | 2024-01-05 |
Family
ID=89374876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321882334.7U Active CN220305997U (en) | 2023-07-18 | 2023-07-18 | Multilayer composite enamelled round copper wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220305997U (en) |
-
2023
- 2023-07-18 CN CN202321882334.7U patent/CN220305997U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |