CN219872953U - Easy-stripping high-voltage shielding aluminum conductor cable for new energy automobile - Google Patents
Easy-stripping high-voltage shielding aluminum conductor cable for new energy automobile Download PDFInfo
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- CN219872953U CN219872953U CN202321027703.4U CN202321027703U CN219872953U CN 219872953 U CN219872953 U CN 219872953U CN 202321027703 U CN202321027703 U CN 202321027703U CN 219872953 U CN219872953 U CN 219872953U
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- conductor
- aluminum
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- new energy
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- 239000004020 conductor Substances 0.000 title claims abstract description 72
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 42
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 42
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 18
- 229920002379 silicone rubber Polymers 0.000 claims description 18
- 239000004945 silicone rubber Substances 0.000 claims description 12
- 229910052697 platinum Inorganic materials 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 9
- 239000002131 composite material Substances 0.000 abstract description 7
- 239000004033 plastic Substances 0.000 abstract description 6
- 230000017105 transposition Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 13
- 238000009413 insulation Methods 0.000 description 8
- 238000004073 vulcanization Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009954 braiding Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000000641 cold extrusion Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229940045985 antineoplastic platinum compound Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 methylethynylplatinum Chemical compound 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000003058 platinum compounds Chemical class 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000009941 weaving 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 discloses an easy-stripping high-voltage shielding aluminum conductor cable for a new energy automobile, which belongs to the technical field of wires and cables of new energy automobiles and comprises a conductor, an insulating layer, a copper wire braid, an aluminum-plastic composite tape wrapping layer and a sheath layer which are sequentially arranged from inside to outside, and is characterized in that: the conductor is formed by twisting strand units in a 1+6+12 three-layer mode, wherein the pitch diameter ratio of the middle layer is 20-23 times and is in a left twisting direction, and the pitch diameter ratio of the outer layer is 16-18 times and is in a left twisting direction; the strand units are formed by twisting aluminum monofilament bundles, and the pitch diameter ratio of the aluminum monofilament bundles is 30-34 times and is in a left twisting direction. The utility model provides a gap is little between conductor cable transposition finished product conductor monofilament and the strand wire, and the surface is round and difficult loose, can reduce the peeling force of conductor, reduces the wire harness manufacturer and cuts out the line and peels off the degree of difficulty, improves production efficiency.
Description
Technical Field
The utility model belongs to the technical field of wires and cables of new energy automobiles, and particularly relates to an easily-stripped high-voltage shielding aluminum conductor cable for a new energy automobile.
Background
Along with the rapid development of new energy electric vehicles, the intelligentization and the light weight become an important technical development direction of the new energy electric vehicles. The aluminum conductor has the characteristics of light weight, low price and the like, so that the aluminum conductor is widely applied to new energy automobiles, the whole automobile weight can be reduced, the light weight target is realized, the cost can be reduced, and the aluminum conductor has a broad market prospect in the electric automobile industry.
With the continuous expansion of new energy electric automobile markets, automobile manufacturers have increasingly increased the production efficiency and quality requirements for automobile wire harnesses. Automatic equipment wire cutting and stripping has become a common practice in harness production to improve production efficiency and reduce labor costs. However, with respect to the aluminum conductor harness, the harness trimming and peeling process becomes more complicated due to the characteristics of the aluminum conductor.
Firstly, aluminum conductors are prone to loose deformation compared with copper conductors, which results in irregular shapes or deformation of conductors during wire cutting and stripping, and increases the difficulty of operation. Secondly, the conductor gap of the aluminum conductor is larger, so that the insulating layer is easy to enter the conductor gap in the extrusion process, and the insulating layer is embedded too deeply in stripping, so that stripping quality is affected. In addition, the friction force on the surface of the aluminum conductor is large, so that the stripping force is increased, and the difficulty of the stripping process is increased. Finally, stripping is more difficult due to the possible presence of glue in the conductors in the aluminum conductor strands.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides the easy-stripping high-voltage shielding aluminum conductor cable for the new energy automobile, which solves the problem of stripping difficulty of an aluminum conductor harness caused by overlarge stripping force.
The utility model is realized in such a way that the easy-stripping high-voltage shielding aluminum conductor cable for the new energy automobile comprises a conductor, an insulating layer, a shielding layer and a sheath layer which are sequentially arranged from inside to outside, and is characterized in that: the conductor is formed by twisting strand units in a 1+6+12 three-layer mode, wherein the pitch diameter ratio of the middle layer is 20-23 times and is in a left twisting direction, and the pitch diameter ratio of the outer layer is 16-18 times and is in a left twisting direction; the strand units are formed by twisting aluminum monofilament bundles, and the pitch diameter ratio of the aluminum monofilament bundles is 30-34 times and is in a left twisting direction.
In the above technical solution, preferably, the insulating layer is a platinum vulcanized silicone rubber layer. The insulation adopts a silicon rubber insulation material, the silicon rubber adopts a platinum vulcanization system, the silicon rubber insulation extrusion mode is cold extrusion, the silicon rubber is formed by one-time vulcanization through a vulcanization furnace after extrusion, the insulation layer can be prevented from being embedded too deeply, the stripping force after extrusion meets the requirement, and the rubber clamping phenomenon is avoided.
In the above technical solution, preferably, the diameter of the aluminum monofilament bundles ranges from 0.49mm to 0.51mm.
In the above technical solution, preferably, the tensile strength of the aluminum monofilament bundles is 80-120 MPa.
In the above technical scheme, preferably, the elongation of the aluminum monofilament bundles is 20% -35%.
The utility model has the advantages and effects that the gap between the conductor monofilament and the stranded wire of the stranded finished conductor of the conductor cable is small, the surface is round and is not easy to loosen, the stripping force of the conductor can be reduced, the wire cutting and stripping difficulty of wire harness manufacturers is reduced, and the production efficiency is improved. Meanwhile, the conductor is not easy to loosen, the phenomenon of glue clamping in the conductor is reduced, the defective rate in production is reduced, and the production yield is improved.
In addition to the advantages described above, the present conductor cable may also:
1. improving the electrical performance of the conductor: the gaps between the stranded product conductor monofilaments and the strands are small, so that the resistance loss of the conductor can be reduced, and the conductivity of the conductor can be improved. The surface of the conductor is round and is not easy to loosen, so that gaps between the conductor and the insulating layer can be reduced, leakage current and dielectric loss are reduced, and the electrical performance of the conductor is improved.
2. Improving the mechanical properties of the conductor: the gaps between the stranded finished conductor monofilaments and the strands are small, the conductor is not easy to loosen, and the mechanical properties of the conductor can be improved. The surface of the conductor is round, irregular contact points between the conductor and the insulating layer are reduced, and mechanical abrasion and damage of the conductor in the use process are reduced, so that the durability and the stability of the conductor are improved.
3. The product quality is improved: the gaps between the stranded finished conductor monofilaments and the strands are small, the surfaces are round and are not easy to loosen, the quality stability and consistency of the conductors can be improved, and the variability of products is reduced. The surface of the conductor is round, defects and bad contact points between the conductor and the insulating layer are reduced, the failure rate of the product is reduced, and the quality reliability of the product is improved.
In summary, the technical effects of small gaps between the stranded finished conductor monofilaments and the strands, round surfaces and difficult loosening are achieved, the electrical performance and the mechanical performance of the conductor can be improved in the manufacturing of the wire harness of the new energy electric automobile, the production efficiency is improved, and meanwhile, the quality stability and the reliability of the product are improved, so that the high requirements of the new energy electric automobile on the wire harness are met.
Drawings
Fig. 1 is a schematic view of the cable of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In order to solve the problem that the stripping of an aluminum conductor harness is difficult due to overlarge stripping force, the utility model particularly provides an easy-stripping high-voltage shielding aluminum conductor cable for a new energy automobile. For further explanation of the structure of the present utility model, the detailed description is as follows in connection with the accompanying drawings:
referring to fig. 1, an easily-stripped high-voltage shielding aluminum conductor cable for a new energy automobile comprises a conductor 1, an insulating layer 2, a shielding layer and a sheath layer 5 which are sequentially arranged from inside to outside.
The conductor is formed by twisting strand units in a 1+6+12 three-layer mode, the pitch diameter ratio of the middle layer is 20-23 times and is in a left twisting direction, and the pitch diameter ratio of the outer layer is 16-18 times and is in a left twisting direction; the strand unit is formed by twisting 13 aluminum monofilament bundles 1-1, and the conductor is formed by 247 aluminum monofilament bundles in total. The pitch diameter ratio of the aluminum monofilament bundles is 30-34 times and the aluminum monofilaments are left twisted. The diameter range of the aluminum monofilament bundles is 0.49-0.51 mm, the tensile strength is 80-120 MPa, and the elongation is 20-35%. Through the design of the twisting parameters, the conductor monofilaments can be more closely arranged together in the twisting process, and gaps among the conductor monofilaments are reduced, so that twisting compactness is improved, and contact resistance is reduced.
The insulating layer is a platinum vulcanized silicone rubber layer. The platinum vulcanized silicone rubber layer is an insulating layer formed by a silicone rubber curing or vulcanizing mechanism, and the platinum catalyst is used for promoting the silicone rubber to undergo a crosslinking reaction in the curing process to form elastic solid. Such a vulcanization system is widely used in silicone rubber because it is capable of achieving a faster curing speed and a high degree of crosslinking effect at relatively low temperatures, typically at room temperature or slightly higher. The platinum catalyst is typically one or more platinum compounds, such as chloroplatinic acid (H2 PtCl 6), methylethynylplatinum (PtMe 3C 2H), and the like. The platinum catalyst can catalyze vulcanization reaction in the silicone rubber, so that silicon-hydrogen bonds and silicon-silicon bonds in the silicone rubber are crosslinked to form a three-dimensional network structure, thereby curing the silicone rubber and endowing the silicone rubber with performances such as elasticity, wear resistance and the like.
The silicon rubber insulation extrusion is cold extrusion, and the extruded silicon rubber is vulcanized and molded in one step by a vulcanizing furnace. The extrusion screw cylinder and extrusion are cooled by circulation of cooling liquid, so that the extrusion temperature is kept constant, scorching and early vulcanization are reduced, and the quality and stability of the insulating layer are improved. The extrusion adopts a half-extrusion die, and the die spacing is 6mm. The semi-extrusion die can be flexibly adjusted and customized according to the shape and the size of the cable insulation layer, and is suitable for the production of cable insulation layers with different types, specifications and requirements. By changing different parts of the mould, cable insulation layers of different shapes and sizes can be manufactured.
The shielding layer of the high-voltage shielding conductor cable for the new energy automobile is usually shielded by a metal layer, so that interference signals generated during electric energy transmission are prevented from affecting the safe use of other electric appliances in the automobile. In the embodiment, a composite shielding is adopted, and the shielding layer consists of a copper wire weaving layer 3 and an aluminum-plastic composite belt wrapping layer 4 which are arranged from inside to outside. The copper wire braided shield has good flexibility, can adapt to bending, stretching deformation and the like of a cable, but cannot completely shield interference signals due to gaps of the braided copper mesh, and the shielding mode of copper wire braided shield and aluminum plastic composite tape wrapping is adopted, so that a certain bending performance is maintained, and the shielding effect is enhanced.
The copper wire braiding layer is braided by 0.15mm tinned copper, the braiding density of the copper wire braiding layer is more than or equal to 85%, and the shielding effectiveness is ensured.
The aluminum-plastic composite belt wrapping layer is wrapped by an aluminum-plastic composite belt with the thickness of 0.025mm, and the covering rate of the aluminum-plastic composite belt wrapping layer is more than or equal to 25%.
The sheath layer adopts a platinum vulcanization system silicone rubber, the extrusion mode is cold extrusion, and the extrusion is carried out and then one-time vulcanization molding is carried out through a vulcanizing furnace. The cable has excellent high temperature resistance, and the whole cable has better softness performance, thereby being beneficial to installation.
According to the automobile industry standard, peel force tests are performed on a plurality of specification example cables, and the results are as follows:
table 1 insulation stripping force test
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (5)
1. The utility model provides an easy stripping high pressure shielding aluminum conductor cable for new energy automobile, includes conductor, insulating layer, shielding layer and restrictive coating that from inside to outside set gradually, its characterized in that: the conductor is formed by twisting strand units in a 1+6+12 three-layer mode, wherein the pitch diameter ratio of the middle layer is 20-23 times and is in a left twisting direction, and the pitch diameter ratio of the outer layer is 16-18 times and is in a left twisting direction; the strand units are formed by twisting aluminum monofilament bundles, and the pitch diameter ratio of the aluminum monofilament bundles is 30-34 times and is in a left twisting direction.
2. The easy-to-peel high-voltage shielding aluminum conductor cable for new energy automobiles according to claim 1, wherein: the insulating layer is a platinum vulcanized silicone rubber layer.
3. The easy-to-peel high-voltage shielding aluminum conductor cable for new energy automobiles according to claim 2, wherein: the diameter of the aluminum monofilament bundles ranges from 0.49mm to 0.51mm.
4. The easy-to-peel high-voltage shielding aluminum conductor cable for new energy automobiles according to claim 3, wherein: the tensile strength of the aluminum monofilament bundles is 80-120 MPa.
5. The easy-to-peel high-voltage shielding aluminum conductor cable for new energy automobiles according to claim 4, wherein: the elongation of the aluminum monofilament bundles is 20-35%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321027703.4U CN219872953U (en) | 2023-04-28 | 2023-04-28 | Easy-stripping high-voltage shielding aluminum conductor cable for new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321027703.4U CN219872953U (en) | 2023-04-28 | 2023-04-28 | Easy-stripping high-voltage shielding aluminum conductor cable for new energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219872953U true CN219872953U (en) | 2023-10-20 |
Family
ID=88319156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321027703.4U Active CN219872953U (en) | 2023-04-28 | 2023-04-28 | Easy-stripping high-voltage shielding aluminum conductor cable for new energy automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219872953U (en) |
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2023
- 2023-04-28 CN CN202321027703.4U patent/CN219872953U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |