CN106683763A - Cable used for conduction charging system of electric vehicle - Google Patents
Cable used for conduction charging system of electric vehicle Download PDFInfo
- Publication number
- CN106683763A CN106683763A CN201510766298.1A CN201510766298A CN106683763A CN 106683763 A CN106683763 A CN 106683763A CN 201510766298 A CN201510766298 A CN 201510766298A CN 106683763 A CN106683763 A CN 106683763A
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- Prior art keywords
- layer
- cable
- charging system
- electric car
- conduction charging
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- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 13
- 229920006267 polyester film Polymers 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims description 18
- 238000012856 packing Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000004760 aramid Substances 0.000 claims description 7
- 229920003235 aromatic polyamide Polymers 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000009954 braiding Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 7
- 239000004745 nonwoven fabric Substances 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Abstract
Disclosed is a cable used for a conduction charging system of an electric vehicle. The cable comprises a cable core and a signal line, wherein the cable core is formed by multiple insulating wire cores in a twisted manner; the cable also comprises a polyester film band layer for coating the cable core and the signal line together, an inner sheath layer, an electromagnetic shielding layer, a non-woven fabric layer and an outer sheath layer which are arranged on the exterior of the polyester film band layer in a coating manner in sequence, and a filler which is arranged in the gap between the inner sheath layer and the insulating wire cores in a filling manner; the non-woven fabric layer adopts an interval type wrapping way, and the clearance ratio is 20-30%; and the polyester film band layer adopts an overlapping type wrapping way, and the overlapping ratio is not less than 25%. The cable has the advantages of excellent electrical performance, bending resistance, torsion resistance, low temperature flexibility and externally-applied pressure resistance.
Description
Technical field
The present invention relates to a kind of cable, particularly a kind of electric car conduction charging system cable.
Background technology
Electric car conduction charging system cable is a kind of new cable form occurred with electric automobile, it is used for the charging connection of electric automobile and power supply, it is one of key equipment of electric car conduction charging system, the good and bad safe and reliable operation on electric automobile of performance of such product will be produced and directly affected.
Such cable can indoors or outdoor application, the erosion of high and cold, daylight, rainwater and gasoline class material should be met in outdoor application, this requires that cable possesses the properties such as the uvioresistant, ozone, high-low temperature resistant and the chemical erosion that are suitable for use with occasion.It can be rolled in use by frequently stretch bending or by electric automobile, so such cable should also meet special mechanical property requirements, such as circumnutated, bent and vehicle field compaction test.
The structure of existing electric car conduction charging system cable as shown in figure 1, including by the stranded cable core of many insulated wire cores 10, holding wire 11, by cable core and holding wire be together coated in nonwoven layer 12 and the restrictive coating 13 that is coated on outside nonwoven layer 12.Packing material 14 is filled with gap between nonwoven layer 12 and insulated wire cores 10.
Insulated wire cores 10 include the stranded conductor 101 of multi beam strand and the insulating barrier 102 being coated on outside conductor 101.Strand forms conductor 101 using the structure of layer-stranding, and innermost layer is single strand, and remainder layer is formed by multi beam strand is stranded respectively, and, each layer is closely enclosed in last layer interior by innermost layer outwards.Except innermost layer, twist between adjacent layer to contrary.
But the cable of the structure has the following disadvantages：1st, the conductor of insulated wire cores is formed by strand layer-stranding, and wherein outermost layer lay ratio is 14～16 times, and the lay ratio of other layers in addition to outermost layer and innermost layer is 16～19 times, and it is 16～18 times that insulated wire cores are twisted into the lay ratio of cable core.Lay ratio is larger, causes the bending radius of conductor and cable core little, the pliability of conductor and cable core can not meet cable frequently move, bend and resistance to torsion requirement.2nd, in nonwoven layer is together coated on cable core and holding wire using eclipsed form is wrapped, the structure cable core can not be contacted with restrictive coating, cable is when being frequently bended and reversing, each there is position movement with restrictive coating in cable core, cable is caused to play bag, conductor break, restrictive coating is damaged, and shortens the service life of cable.3rd, the cross section of insulated wire cores is generally circular in cross section, then the gap between insulated wire cores is larger, and existing packing material is polyethylene rope, it is impossible to ensure the roundness of cable.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, and provides a kind of electric car conduction charging system cable.It has higher flexibility, outstanding anti-outer load pressure, good oil resistivity, splendid low-temperature flexibility and electromagnetism interference.Solve that existing electric car conduction charging system Cable Bending Radius is little, pliability not enough, cable core is easily each subjected to displacement with restrictive coating during use, causes cable to play bag, conductor break, restrictive coating damage, and roundness and does not reach the problem of requirement.
The technical scheme is that：A kind of electric car conduction charging system cable, including cable core and holding wire, cable core is formed by many insulated wire cores are stranded, also includes for cable core and holding wire being together coated on interior polyester film belt；Inner restrictive coating outside polyester film belt, electro-magnetic screen layer, nonwoven layer and external sheath layer are coated on successively；And the filler being filled between inner restrictive coating and insulated wire cores in gap；Nonwoven layer is wrapped using clearance-type, and clearance rate is 20%～30%；Polyester film belt is wrapped using eclipsed form, and Duplication is not less than 25%.
Further technical scheme is the present invention:Filler includes aramid yarn.
Further technical scheme is the present invention:Filler also includes packing.
Further technical scheme is the present invention：Insulated wire cores include the stranded conductor of multi beam strand and the insulating barrier being coated on outside conductor；Strand forms conductor using the structure of layer-stranding, innermost layer is single strand, remainder layer is formed by multi beam strand is stranded respectively, it is outside by innermost layer, in each layer is closely enclosed in last layer, remaining each layer in addition to innermost layer is twisted to identical, and the stranded lay ratio of remaining each layer in addition to innermost layer is 8～10 times.
Further technical scheme is the present invention:Electro-magnetic screen layer includes plastic-aluminum belt and wrapped braiding copper wire layer thereon.
Further technical scheme is the present invention:It is 12～14 times that insulated wire cores are twisted into the lay ratio of cable core
The present invention has the advantage that compared with prior art：
1st, add packing to be twisted into a closely knit entirety in filler, greatly improve the resist bending of cable, anti-torsion performance makes cable integrally have outstanding anti-outer load pressure and a thermal stress, good oil resistivity and splendid low-temperature flexibility.
2nd, filler includes packing and aramid yarn, the diameter of packing and the equal diameters of insulated wire cores, and can increase the stability of the construction of cable, it is ensured that the rounding property of cable more than the TPE materials of aramid yarn using density and hardness.
3rd, compared to existing cable, electro-magnetic screen layer is increased, it includes plastic-aluminum belt and wrapped braiding copper wire layer thereon, enhances the electromagnetism interference of cable.The electric capacity that proof copper-wire braided layer grid element center is produced by the most of elimination of aluminum plastic belt, less than 10 (CQC standards are less than 250), cancel out each other surface transfer impedance by the magnetic field that both produce.
4th, it is in cable core and holding wire being together coated on using mylar tape and wrapped using eclipsed form, it is easy to cable core to tighten, it is ensured that the rounding property of cable, it is also convenient for cable core in rear operation and combines closely with inner restrictive coating, facilitate the joint of charging pile cable terminal.
5th, the conductor of insulated wire cores is formed by strand layer-stranding, remaining each layer in addition to innermost layer is twisted to identical, flexibility gets a promotion, bending radius reaches 5D (D is finished cable diameter), the stranded lay ratio of remaining each layer in addition to innermost layer is 8～10 times, and it is 12～14 times that insulated wire cores are twisted into the lay ratio of cable core, compared with existing cable, lay ratio reduces, and bending radius further reduces.
Below in conjunction with figure, the invention will be further described with embodiment.
Description of the drawings
Fig. 1 is the structural representation of existing electric car conduction charging system cable；
Fig. 2 is the structural representation of the embodiment of the present invention 1；
Fig. 3 is the structural representation of the embodiment of the present invention 2；
Fig. 4 is the structural representation of the embodiment of the present invention 3；
Fig. 5 is the A portions enlarged drawing of Fig. 2.
Indicate：Must become apparent to show structure, cut-away section line is not filled by.
Specific embodiment
Embodiment 1：
As shown in Fig. 2,5：A kind of electric car conduction charging system cable, including：Cable core；Holding wire 1；Cable core and holding wire are together coated on into interior polyester film belt 3；Inner restrictive coating 4, electro-magnetic screen layer outside polyester film belt 3, nonwoven layer 6 and external sheath layer 7 are coated on successively；And the filler being filled between inner restrictive coating 4 and insulated wire cores 2 in gap.
Cable core is formed by many insulated wire cores 2 are stranded.Insulated wire cores 2 include the stranded conductor 21 of multi beam strand and the insulating barrier 22 being coated on outside conductor 21；Strand forms conductor 21 using the structure of layer-stranding, innermost layer is single strand, remainder layer is formed by multi beam strand is stranded respectively, it is outside by innermost layer, in each layer is closely enclosed in last layer, remaining each layer in addition to innermost layer is twisted to identical, and the stranded lay ratio of remaining each layer in addition to innermost layer is 8～10 times.It is 12～14 times that insulated wire cores 2 are twisted into the lay ratio of cable core.
Polyester film belt 3 is wrapped using eclipsed form, and Duplication is not less than 25%.Electro-magnetic screen layer includes plastic-aluminum belt 51 and wrapped braiding copper wire layer 52 thereon.The count of braiding copper wire layer 52 is not less than 80%.Nonwoven layer 6 is wrapped using clearance-type, and clearance rate is 20%～30%.
In the present embodiment, insulated wire cores have two, and filler includes packing 8 and aramid yarn 9.
Embodiment 2：
As shown in figure 3, the present embodiment compared with Example 1, is differed only in：Insulated wire cores have four, and filler is aramid yarn 9.
Embodiment 3：
As shown in figure 4, the present embodiment compared with Example 1, is differed only in：Insulated wire cores have five, and filler includes packing 8 and aramid yarn 9.
With regard to the explanation of technique effect：
Cable and the existing electric car conduction charging system cable of the present invention does under the same test conditions respectively finished product DC testing of cables, the test of electro-magnetic screen layer surface transfer impedance, finished cable Apparatus for Pressure at high-temp, finished cable low temperature flexing test, finished cable and deflects test, finished cable vehicle field compaction test and finished cable torsion pendulum method.Finished cable external diameter in above-mentioned test from the present invention is 11.5～14.8 (mm), and the finished cable external diameter of comparative example (i.e. existing cable) also selects 11.5～14.8 (mm).Result of the test is respectively as shown in table 1～7.
Table 1：Finished cable DC break down voltage is tested
Table 2：Electro-magnetic screen layer surface transfer impedance is tested
| Experiment parameter | Technical requirements | Result of the test | |
| The present invention | 30MHz | ≤250 | 4～8 |
| Existing cable | 30MHz | ≤250 | 65～82 |
Table 3：Finished cable Apparatus for Pressure at high-temp
Table 4：Finished cable low temperature flexing test
Table 5：Finished cable deflects test
Table 6：Finished cable vehicle field compaction test
Table 7：Finished cable torsion pendulum method (40N)
With reference to table 1～7 as can be seen that the electric car conduction charging system cable of the present invention is compared with existing electric car conduction charging system cable, with excellent electrical property, resistance to bend(ing) energy, anti-torsion performance, low-temperature flexibility and anti-outer load pressure.
Claims (9)
1. a kind of electric car conduction charging system cable, including cable core and holding wire (1), cable core is formed by many insulated wire cores (2) are stranded, be it is characterized in that：Also include for cable core and holding wire being together coated on interior polyester film belt (3)；It is coated on successively in the outer inner restrictive coating (4) of polyester film belt (3), electro-magnetic screen layer, nonwoven layer (6) and external sheath layer (7)；And the filler being filled between inner restrictive coating (4) and insulated wire cores (2) in gap；Nonwoven layer (6) is wrapped using clearance-type, and clearance rate is 20%～30%；Polyester film belt (3) is wrapped using eclipsed form, and Duplication is not less than 25%.
2. electric car conduction charging system cable as claimed in claim 1, is characterized in that：Filler includes aramid yarn (9).
3. electric car conduction charging system cable as claimed in claim 2, is characterized in that：Filler also includes packing (8).
4. electric car conduction charging system cable as claimed any one in claims 1 to 3, is characterized in that：Insulated wire cores (2) are including the stranded conductor of multi beam strand (21) and are coated on conductor (21) insulating barrier (22) outward；Strand forms conductor (21) using the structure of layer-stranding, innermost layer is single strand, remainder layer is formed by multi beam strand is stranded respectively, it is outside by innermost layer, in each layer is closely enclosed in last layer, remaining each layer in addition to innermost layer is twisted to identical, and the stranded lay ratio of remaining each layer in addition to innermost layer is 8～10 times.
5. electric car conduction charging system cable as claimed any one in claims 1 to 3, is characterized in that：Electro-magnetic screen layer includes plastic-aluminum belt (51) and wrapped braiding copper wire layer (52) thereon.
6. electric car conduction charging system cable as claimed in claim 4, is characterized in that：Electro-magnetic screen layer includes plastic-aluminum belt (51) and wrapped braiding copper wire layer (52) thereon.
7. the electric car conduction charging system cable as any one of claim 1,2,3,6, is characterized in that：It is 12～14 times that insulated wire cores (2) are twisted into the lay ratio of cable core.
8. electric car conduction charging system cable as claimed in claim 4, is characterized in that：It is 12～14 times that insulated wire cores (2) are twisted into the lay ratio of cable core.
9. electric car conduction charging system cable as claimed in claim 5, is characterized in that：It is 12～14 times that insulated wire cores (2) are twisted into the lay ratio of cable core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766298.1A CN106683763A (en) | 2015-11-11 | 2015-11-11 | Cable used for conduction charging system of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766298.1A CN106683763A (en) | 2015-11-11 | 2015-11-11 | Cable used for conduction charging system of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106683763A true CN106683763A (en) | 2017-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510766298.1A Pending CN106683763A (en) | 2015-11-11 | 2015-11-11 | Cable used for conduction charging system of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106683763A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158092A (en) * | 2016-08-20 | 2016-11-23 | 衡阳恒飞电缆有限责任公司 | Electric car conduction charging system cable |
| CN110444346A (en) * | 2019-05-12 | 2019-11-12 | 无锡市华美电缆有限公司 | Stranding device, stranding method and the flexible core of flexible core for charging pile cable |
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2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158092A (en) * | 2016-08-20 | 2016-11-23 | 衡阳恒飞电缆有限责任公司 | Electric car conduction charging system cable |
| CN110444346A (en) * | 2019-05-12 | 2019-11-12 | 无锡市华美电缆有限公司 | Stranding device, stranding method and the flexible core of flexible core for charging pile cable |
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