CN219979191U - Vehicle-mounted cable for new energy automobile - Google Patents
Vehicle-mounted cable for new energy automobile Download PDFInfo
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- CN219979191U CN219979191U CN202321199465.5U CN202321199465U CN219979191U CN 219979191 U CN219979191 U CN 219979191U CN 202321199465 U CN202321199465 U CN 202321199465U CN 219979191 U CN219979191 U CN 219979191U
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- 239000010410 layer Substances 0.000 claims abstract description 138
- 239000004020 conductor Substances 0.000 claims abstract description 80
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 39
- 238000009941 weaving Methods 0.000 claims abstract description 37
- 239000004734 Polyphenylene sulfide Substances 0.000 claims abstract description 32
- 229920000069 polyphenylene sulfide Polymers 0.000 claims abstract description 32
- 239000011247 coating layer Substances 0.000 claims abstract description 23
- 238000013329 compounding Methods 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 36
- 238000001125 extrusion Methods 0.000 claims description 29
- 229910052802 copper Inorganic materials 0.000 claims description 26
- 239000010949 copper Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 22
- 229920002379 silicone rubber Polymers 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 238000009954 braiding Methods 0.000 claims description 12
- 239000004945 silicone rubber Substances 0.000 claims description 9
- 238000009940 knitting Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 238000005452 bending Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a vehicle-mounted cable for a new energy automobile, which comprises a conductor, and an insulating layer, a shielding layer, an inner sheath layer and an outer sheath layer which are sequentially coated outside the conductor from inside to outside; the outer sheath layer is mainly formed by compounding an inner aramid fiber yarn weaving layer and an outer polyphenylene sulfide coating layer coated on the outer side of the aramid fiber yarn weaving layer. Aiming at the special technical requirements of new energy automobiles on the vehicle-mounted cable, the formed cable has excellent mechanical property and environmental resistance, is beneficial to miniaturization of the cross section size, and is more flexible and light in weight.
Description
Technical Field
The utility model relates to a cable, in particular to a vehicle-mounted cable for a new energy automobile.
Background
In recent years, along with the development of a 'two-carbon' target policy and the planning of the development of new energy automobiles, new energy automobiles enter a rapid development period. The vehicle-mounted cable for the new energy automobile is taken as an important component of the whole vehicle system of the new energy automobile, and plays a vital role in the quality of the vehicle condition of the new energy automobile.
The vehicle-mounted cable for the new energy automobile is connected among components such as a high-voltage battery, an inverter, a motor and the like of the new energy automobile, belongs to a high-temperature-resistant special cable, and has relatively high requirements on technical level.
According to the technical requirements of the high-voltage cable of the new energy automobile, the vehicle-mounted cable of the new energy automobile at least has the technical characteristics of good flexibility, shielding property, environmental resistance (such as scratch resistance, high temperature resistance, mould resistance, salt fog resistance, vibration resistance and the like), voltage resistance at least reaches 600V, temperature resistance at least reaches 125 ℃, current resistance at least reaches 250A, and service life at least reaches 3000h.
The currently disclosed vehicle-mounted cable for the new energy automobile mainly comprises a conductor formed by twisting copper wires, a silicon rubber insulating layer, a shielding layer, a sheath layer and the like which are sequentially coated outside the conductor from inside to outside, and the technology of the vehicle-mounted cable for the new energy automobile is disclosed in China patent literature and is named as a soft super wear-resistant cable for the new energy automobile (publication No. CN 107610827A, publication No. 2018, 01 month and 19 days), a soft cable for the high-temperature-resistant new energy automobile (publication No. CN 209785626U, publication No. 2019, 12 month and 13 days), a high-temperature-resistant high-pressure odorless explosion-proof cable for the new energy automobile (publication No. CN 110289122A, publication No. 2019, 09 month and 27 days) and the like. In these disclosed techniques, a sheath layer designed to be used in contact with the application environment is generally extruded with a large thickness from a material such as silicone rubber or polyurethane elastomer in order to satisfy high temperature resistance and environmental resistance. Because the physical properties of the molding material of the sheath layer are directly determined, the extrusion thickness can only be increased as much as possible under the condition that the properties of the material cannot be improved, so as to improve the physical properties, and the cross section dimension of the molded vehicle-mounted cable for the new energy automobile is larger (under the condition that the arrangement structure of all the functional layers is basically consistent). Obviously, the cable with larger cross section has larger bending radius, is unfavorable for improving flexibility, has heavier unit weight and is unfavorable for light weight. In addition, the sheath layer formed by extruding and wrapping materials such as silicon rubber or polyurethane elastomer has relatively low tensile and tear-resistant mechanical properties, and relatively low environmental resistance, particularly scratch and abrasion resistance and vibration resistance.
In summary, based on the special technical requirements of the new energy automobile on the vehicle-mounted cable, the above-mentioned prior art is not beneficial to improving the overall performance of the formed vehicle-mounted cable for the new energy automobile, and needs to be further improved.
Disclosure of Invention
The technical purpose of the utility model is that: aiming at the special technical requirements of the new energy automobile on the vehicle-mounted cable and the defects of the prior art, the vehicle-mounted cable for the new energy automobile is excellent in mechanical property and environmental resistance and beneficial to miniaturization of the cross section size.
The technical aim of the utility model is achieved by the following technical scheme that the vehicle-mounted cable for the new energy automobile comprises a conductor, and an insulating layer, a shielding layer, an inner sheath layer and an outer sheath layer which are sequentially coated outside the conductor from inside to outside;
the outer sheath layer is mainly formed by compounding an inner aramid fiber yarn weaving layer and an outer polyphenylene sulfide coating layer coated on the outer side of the aramid fiber yarn weaving layer.
The technical measures aim at the special requirements of the new energy automobile on the vehicle-mounted cable, the outer sheath layer is formed by compounding the aramid fiber yarn weaving layer and the compact polyphenylene sulfide coating layer in a thinner thickness, the aramid fiber yarn weaving layer can reliably improve the mechanical properties of the outer sheath layer such as tensile resistance, tearing resistance and the like, the polyphenylene sulfide coating layer can reliably improve the environmental resistance (including water resistance, scratch resistance, mildew resistance, salt mist resistance, vibration resistance and the like) of the outer sheath layer, the formed outer sheath layer still has excellent mechanical property and environmental resistance under the condition of thinner thickness, the formed cable performance is improved, the miniaturization of the cross section size of the cable is facilitated, the bending radius of the cable with smaller cross section size (under the condition that the arrangement structure of all functional layers is basically consistent) is smaller, the flexibility is facilitated to be improved, and the unit weight is lighter and the light weight is facilitated.
As one of the preferable schemes, the knitting density of the aramid fiber yarn knitting layer is more than or equal to 95%;
the weaving angle of the aramid fiber yarn weaving layer is 50-72 degrees.
The aramid fiber yarn weaving layer formed by the technical measures is more favorable for the reliable attachment of the polyphenylene sulfide coating layer, and the formed outer sheath layer has better mechanical properties such as tensile strength, tear resistance and the like.
As one of preferable schemes, the coating thickness of the polyphenylene sulfide coating layer is 500-900 μm. The technical measure is favorable for reducing the thickness of the outer sheath layer on the premise of meeting the use performance, thereby reducing the cross section size of the formed cable and the unit weight.
As one of the preferable schemes, the shielding layer is a braided structure of copper wires or tinned copper wires;
the weaving density of the shielding layer is more than or equal to 85%;
the braiding angle of the shielding layer is 50-72 degrees.
The shielding layer of the technical measure has small influence on the bending and softness of the formed cable on the premise of meeting the shielding performance.
As one of preferable schemes, the conductor is formed by twisting a plurality of conductor strands;
each conductor strand is formed by twisting a plurality of copper conductor bundles of category 5 or category 6.
The conductor is manufactured in a multi-stranded mode by the technical measures, the position of each monofilament in the manufactured conductor is basically in the extension area on the upper portion of the stranded wire and the compression area on the lower portion of the stranded wire in turn, when the stranded wire is bent, the conductor cannot deform, the bending radius is smaller, the product is softer, the bending-resistant effect is obvious, laying and installation are easier to achieve in a narrow space in a new energy automobile, and electric power and signal transmission of the cable are better guaranteed.
As one of the preferable schemes, the insulating layer is an extrusion structure of a silicon rubber material, and the extrusion thickness is 0.6-1.8 mm. The insulating layer of the technical measure is beneficial to reducing the cross section size and the unit weight of the formed cable on the premise of meeting the insulating performance, the volume resistivity performance and the temperature resistance performance.
As one of the preferable schemes, the inner sheath layer is an extrusion structure of a silicon rubber material, and the extrusion thickness is 0.8-2.5 mm. The inner sheath layer of the technical measure is beneficial to reducing the cross section size and the unit weight of the formed cable on the premise of meeting the high-low temperature resistance protective performance.
The beneficial technical effects of the utility model are as follows: the technical measures aim at the special technical requirements of the new energy automobile on the vehicle-mounted cable, and the formed cable has excellent mechanical property and environmental resistance, is beneficial to miniaturization of the cross section size, and is more flexible and light in weight.
Drawings
Fig. 1 is a schematic view of the cable structure of the present utility model.
The meaning of the symbols in the figures: 1-a conductor; 2-an insulating layer; 3-a shielding layer; 4-an inner sheath layer; 5-an outer sheath layer.
Detailed Description
The utility model relates to a cable, in particular to a vehicle-mounted cable for a new energy automobile, and the technical scheme of the main body of the utility model is specifically described below by combining a plurality of embodiments. Wherein, the embodiment 1 is combined with the attached drawing of the specification, namely, fig. 1, to clearly and specifically explain the technical scheme of the utility model; other embodiments, although not drawn separately, may still refer to the drawings of embodiment 1 for its main structure.
It is to be noted here in particular that the figures of the utility model are schematic, which for the sake of clarity have simplified unnecessary details in order to avoid obscuring the technical solutions of the utility model which contribute to the state of the art.
Example 1
Referring to fig. 1, the cable of the present utility model comprises a conductor 1, and an insulating layer 2, a shielding layer 3, an inner sheath layer 4 and an outer sheath layer 5 which are sequentially coated outside the conductor 1 from inside to outside.
Specifically, the conductor 1 adopts an annealed copper conductor (namely, a phloem copper conductor) of the 5 th class specified in the standard of GB/T3956-2008 'conductor of cable'. More specifically, a plurality of 5 th copper conductor bundles are twisted to form a conductor strand; the plurality of conductor strands are stranded in a 1+6+12 concentric circle layered stranding configuration to form a final conductor 1.
The insulating layer 2 is an extrusion structure of a silicone rubber material, the silicone rubber material is uniformly extruded outside the conductor 1, and the extrusion thickness is about 1.2mm.
The shielding layer 3 is a braided structure of copper wires outside the insulating layer 2. More specifically, the diameter of the copper wire is basically the diameter of the 5 th/6 th type conductor monofilament specified in the GB/T3956-2008 standard, the braiding density of the copper wire outside the insulating layer is about 90 degrees, and the braiding angle is about 65 degrees.
The inner sheath layer 4 is a uniform extrusion structure of a silicone rubber material outside the shielding layer 3, and the extrusion thickness is about 2mm.
The outer sheath layer 5 is mainly formed by compounding an inner aramid fiber yarn weaving layer and an outer polyphenylene sulfide coating layer coated on the outer side of the aramid fiber yarn weaving layer. More specifically, the aramid fiber filaments are woven at a density of about 97% and a weaving angle of about 65 ° outside the inner jacket layer 4. The coating thickness of the polyphenylene sulfide coating layer is about 750 mu m, the polyphenylene sulfide coating is uniformly coated outside the aramid fiber yarn weaving layer, and the coated polyphenylene sulfide coating layer fully covers the aramid fiber yarn weaving layer without exposure.
Example 2
The cable comprises a conductor, and an insulating layer, a shielding layer, an inner sheath layer and an outer sheath layer which are sequentially coated outside the conductor from inside to outside.
Specifically, the conductor adopts annealed copper conductors of class 5 (i.e. annealed copper conductors) specified in GB/T3956-2008 Standard of conductor of Cable. More specifically, a plurality of 5 th copper conductor bundles are twisted to form a conductor strand; the plurality of conductor strands are stranded in a 1+6+12+18 concentric circular layered lay configuration to form a final conductor.
The insulating layer is an extrusion structure of a silicon rubber material, the silicon rubber material is uniformly extruded outside the conductor, and the extrusion thickness is about 1.5mm.
The shielding layer is a braided structure of copper wires outside the insulating layer. More specifically, the diameter of the copper wire is basically the diameter of the 5 th/6 th type conductor monofilament specified in the GB/T3956-2008 standard, the braiding density of the copper wire outside the insulating layer is about 88%, and the braiding angle is about 70 degrees.
The inner sheath layer is a uniform extrusion structure of a silicone rubber material outside the shielding layer, and the extrusion thickness is about 2.3mm.
The outer sheath layer is mainly formed by compounding an inner aramid fiber yarn weaving layer and an outer polyphenylene sulfide coating layer coated on the outer side of the aramid fiber yarn weaving layer. More specifically, the aramid fiber filaments were woven at a density of about 99% and a weave angle of about 55 ° on the exterior of the inner jacket layer. The coating thickness of the polyphenylene sulfide coating layer is about 900 mu m, the polyphenylene sulfide coating is uniformly coated outside the aramid fiber yarn weaving layer, and the coated polyphenylene sulfide coating layer fully covers the aramid fiber yarn weaving layer without exposure.
Example 3
The cable comprises a conductor, and an insulating layer, a shielding layer, an inner sheath layer and an outer sheath layer which are sequentially coated outside the conductor from inside to outside.
Specifically, the conductor adopts an annealed copper conductor (namely a tough pitch copper conductor) of 6 th class specified in the standard of GB/T3956-2008 conductor of cable. More specifically, a plurality of 6 th copper conductor bundles are twisted to form a conductor strand; the plurality of conductor strands are stranded in a 1+6+12+18 concentric circular layered lay configuration to form a final conductor.
The insulating layer is an extrusion structure of a silicon rubber material, the silicon rubber material is uniformly extruded outside the conductor, and the extrusion thickness is about 0.8mm.
The shielding layer is a braided structure of copper wires outside the insulating layer. More specifically, the diameter of the copper wire is basically the diameter of the 5 th/6 th type conductor monofilament specified in GB/T3956-2008 standard, the braiding density of the copper wire outside the insulating layer is about 85 percent, and the braiding angle is about 50 DEG
The inner sheath layer is a uniform extrusion structure of a silicone rubber material outside the shielding layer, and the extrusion thickness is about 2.5mm.
The outer sheath layer is mainly formed by compounding an inner aramid fiber yarn weaving layer and an outer polyphenylene sulfide coating layer coated on the outer side of the aramid fiber yarn weaving layer. More specifically, the aramid fiber filaments were woven at a density of about 95% and a weave angle of about 70 ° on the exterior of the inner jacket layer. The coating thickness of the polyphenylene sulfide coating layer is about 600 mu m, the polyphenylene sulfide coating is uniformly coated outside the aramid fiber yarn weaving layer, and the coated polyphenylene sulfide coating layer fully covers the aramid fiber yarn weaving layer without exposure.
In order to enhance the curing effect and the curing speed of the polyphenylene sulfide coating outside the aramid fiber yarn weaving layer, a curing agent can be added into the polyphenylene sulfide in a ratio of about 1:1, and the polyphenylene sulfide and the curing agent are uniformly mixed to form the polyphenylene sulfide coating.
Example 4
The cable comprises a conductor, and an insulating layer, a shielding layer, an inner sheath layer and an outer sheath layer which are sequentially coated outside the conductor from inside to outside.
Specifically, the conductor adopts a 6 th class annealed tin-plated copper conductor (namely a phloem conductor) specified in the standard of GB/T3956-2008 cable conductor. More specifically, a plurality of 6 th type tinned copper conductor bundles are twisted to form a conductor strand; the plurality of conductor strands are stranded in a 1+6+12 concentric circle layered stranding configuration to form a final conductor.
The insulating layer is an extrusion structure of a silicon rubber material, the silicon rubber material is uniformly extruded outside the conductor, and the extrusion thickness is about 1.7mm.
The shielding layer is a braided structure of tinned copper wires outside the insulating layer. More specifically, the diameter of the tinned copper wire basically adopts the diameter of the 5 th/6 th type conductor monofilament specified in GB/T3956-2008 standard, the braiding density of the tinned copper wire outside the insulating layer is about 92 percent, and the braiding angle is about 55 degrees
The inner sheath layer is a uniform extrusion structure of a silicone rubber material outside the shielding layer, and the extrusion thickness is about 0.8mm.
The outer sheath layer is mainly formed by compounding an inner aramid fiber yarn weaving layer and an outer polyphenylene sulfide coating layer coated on the outer side of the aramid fiber yarn weaving layer. More specifically, the aramid fiber filaments were woven at about 96% density and at about 50 ° angle on the exterior of the inner jacket layer. The coating thickness of the polyphenylene sulfide coating layer is about 550 mu m, the polyphenylene sulfide coating is uniformly coated outside the aramid fiber yarn weaving layer, and the coated polyphenylene sulfide coating layer fully covers the aramid fiber yarn weaving layer without exposure.
Example 5
The cable comprises a conductor, and an insulating layer, a shielding layer, an inner sheath layer and an outer sheath layer which are sequentially coated outside the conductor from inside to outside.
Specifically, the conductor adopts annealed copper conductors of class 5 (i.e. annealed copper conductors) specified in GB/T3956-2008 Standard of conductor of Cable. More specifically, a plurality of 5 th copper conductor bundles are twisted to form a conductor strand; the plurality of conductor strands are stranded in a 1+6+12 concentric circle layered stranding configuration to form a final conductor.
The insulating layer is an extrusion structure of a silicon rubber material, the silicon rubber material is uniformly extruded outside the conductor, and the extrusion thickness is about 1.4mm.
The shielding layer is a braided structure of tinned copper wires outside the insulating layer. More specifically, the diameter of the tinned copper wire basically adopts the diameter of the 5 th/6 th type conductor monofilament specified in GB/T3956-2008 standard, the braiding density of the tinned copper wire outside the insulating layer is about 89 percent, and the braiding angle is about 60 degrees
The inner sheath layer is a uniform extrusion structure of a silicone rubber material outside the shielding layer, and the extrusion thickness is about 1.2mm.
The outer sheath layer is mainly formed by compounding an inner aramid fiber yarn weaving layer and an outer polyphenylene sulfide coating layer coated on the outer side of the aramid fiber yarn weaving layer. More specifically, the aramid fiber filaments are woven at about 95% density and about 60 ° angle on the exterior of the inner jacket layer. The coating thickness of the polyphenylene sulfide coating layer is about 680 mu m, the polyphenylene sulfide coating is uniformly coated outside the aramid fiber yarn weaving layer, and the coated polyphenylene sulfide coating layer fully covers the aramid fiber yarn weaving layer without exposure.
The above examples are only intended to illustrate the present utility model, not to limit it.
Although the utility model has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: the above embodiments can be modified or some technical features thereof can be replaced by others; such modifications and substitutions do not depart from the spirit and scope of the utility model.
Claims (7)
1. A vehicle-mounted cable for a new energy automobile comprises a conductor (1), and an insulating layer (2), a shielding layer (3), an inner sheath layer (4) and an outer sheath layer (5) which are sequentially coated outside the conductor (1) from inside to outside;
the method is characterized in that:
the outer sheath layer (5) is mainly formed by compounding an inner aramid fiber yarn weaving layer and an outer polyphenylene sulfide coating layer coated on the outer side of the aramid fiber yarn weaving layer.
2. The vehicle-mounted cable for a new energy automobile according to claim 1, wherein:
the knitting density of the aramid fiber yarn knitting layer is more than or equal to 95%;
the weaving angle of the aramid fiber yarn weaving layer is 50-72 degrees.
3. The vehicle-mounted cable for a new energy automobile according to claim 1, wherein:
the coating thickness of the polyphenylene sulfide coating layer is 500-900 mu m.
4. The vehicle-mounted cable for a new energy automobile according to claim 1, wherein:
the shielding layer (3) is a braided structure of copper wires or tinned copper wires;
the weaving density of the shielding layer (3) is more than or equal to 85%;
the braiding angle of the shielding layer (3) is 50-72 degrees.
5. The vehicle-mounted cable for a new energy automobile according to claim 1, wherein:
the conductor (1) is formed by twisting a plurality of conductor strands;
each conductor strand is formed by twisting a plurality of copper conductor bundles of category 5 or category 6.
6. The vehicle-mounted cable for a new energy automobile according to claim 1, wherein:
the insulating layer (2) is an extrusion structure of a silicon rubber material, and the extrusion thickness is 0.6-1.8 mm.
7. The vehicle-mounted cable for a new energy automobile according to claim 1, wherein:
the inner sheath layer (4) is of an extrusion structure made of silicone rubber material, and the extrusion thickness is 0.8-2.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199465.5U CN219979191U (en) | 2023-05-18 | 2023-05-18 | Vehicle-mounted cable for new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199465.5U CN219979191U (en) | 2023-05-18 | 2023-05-18 | Vehicle-mounted cable for new energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219979191U true CN219979191U (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321199465.5U Active CN219979191U (en) | 2023-05-18 | 2023-05-18 | Vehicle-mounted cable for new energy automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219979191U (en) |
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2023
- 2023-05-18 CN CN202321199465.5U patent/CN219979191U/en active Active
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