CN218159759U - Coaxial charging cable - Google Patents
Coaxial charging cable Download PDFInfo
- Publication number
- CN218159759U CN218159759U CN202221600486.9U CN202221600486U CN218159759U CN 218159759 U CN218159759 U CN 218159759U CN 202221600486 U CN202221600486 U CN 202221600486U CN 218159759 U CN218159759 U CN 218159759U
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- layer
- charging cable
- insulating layer
- cooling pipe
- conductor
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- 239000010410 layer Substances 0.000 claims abstract description 127
- 239000004020 conductor Substances 0.000 claims abstract description 72
- 238000001816 cooling Methods 0.000 claims abstract description 62
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052802 copper Inorganic materials 0.000 claims abstract description 38
- 239000010949 copper Substances 0.000 claims abstract description 38
- 239000000835 fiber Substances 0.000 claims abstract description 15
- 239000012792 core layer Substances 0.000 claims abstract description 10
- 239000002826 coolant Substances 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 7
- 239000004745 nonwoven fabric Substances 0.000 claims description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 5
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 230000017105 transposition Effects 0.000 claims description 3
- -1 XLPO Polymers 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims 2
- 239000013585 weight reducing agent Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 125000003827 glycol group Chemical group 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a coaxial type charging cable, include: the charging cable comprises a first conductor layer formed by twisting a plurality of first copper conductors, a first insulating layer coated on the outer side of the first conductor layer, a second conductor layer formed on the outer side of the first insulating layer by twisting a plurality of second copper conductors, and a second insulating layer coated on the outer side of the second conductor layer, wherein a first cooling pipe is arranged at the center of the charging cable, a second cooling pipe is sleeved between the second insulating layer and a sheath layer, a plurality of control core wires arranged along the circumferential direction are arranged between the second cooling pipe and the sheath layer, a fiber filling rope is arranged between adjacent control core wires, and the control core wires and the fiber filling rope form a control core layer which is wound and covered on the outer side of the second cooling pipe by twisting in a certain twisting distance and twisting direction. The utility model discloses have better interference killing feature and current-carrying capacity, compare the traditional charging cable of the same current-carrying capacity, the cable diameter can reduce 50%, weight reduction 60%.
Description
Technical Field
The utility model relates to a coaxial type charging cable belongs to wire and cable and application technique field.
Background
With the rapid development of new energy electric vehicles, the overlong charging time and the heavier product quality become one of the key factors limiting the development of new energy electric vehicles. In order to reduce the charging time, the rapid charging is usually realized by increasing the charging current, wherein the charging current is increased from the original 250A to 500A, and the charging current is increased to 700A for individual vehicle types. The high-voltage cable with the traditional structure adopts a copper stranded conductor, the whole weight is heavier, and the current-carrying temperature of the conductor exceeds 200 ℃ under such heavy current, so that the safety of the electric automobile is seriously influenced. Therefore, there is an urgent need in the market to develop a high voltage cable having light weight and high current carrying capacity.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a coaxial type charging cable, this coaxial type charging cable have better interference killing feature and current-carrying capacity, and than the traditional charging cable of the same current-carrying capacity, the cable diameter can reduce 50%, weight reduction 60%.
In order to solve the technical problem, the utility model adopts the technical scheme that: a coaxial-type charging cable comprising: the charging cable comprises a first conductor layer formed by twisting a plurality of first copper conductors, a first insulating layer coated on the outer side of the first conductor layer, a second conductor layer formed by twisting a plurality of second copper conductors on the outer side of the first insulating layer, a second insulating layer coated on the outer side of the second conductor layer and a sheath layer positioned on the outer side of the second insulating layer, wherein a first cooling pipe is arranged at the center of the charging cable, and a second cooling pipe is sleeved between the second insulating layer and the sheath layer;
the first copper conductors are tightly twisted outside the first cooling pipe, a gap layer is formed between the inner wall of the second cooling pipe and the outer surface of the second insulating layer, cooling media are filled in the first cooling pipe and the gap layer, a plurality of control core wires are arranged between the second cooling pipe and the sheath layer along the circumferential direction, a fiber filling rope is arranged between adjacent control core wires, and the control core wires and the fiber filling rope are twisted in a certain twisting distance and twisting direction to form a control core layer which is wound and covered outside the second cooling pipe.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, an isolation belt layer is arranged between the control core layer and the sheath layer.
2. In the scheme, the isolation belt layer is formed by wrapping non-woven fabrics on the outer surface of the control core layer.
3. In the scheme, the non-woven fabric is uniformly provided with gaps.
4. In the above scheme, the control core wire is composed of a copper conductor and an insulating layer tightly covering the surface of the copper conductor.
5. In the above scheme, the insulating layer is made of one of XLPO, PFA, and FEP.
6. In the scheme, the length of the gap layer in the radial direction is 1 mm-3 mm.
7. In the above scheme, the thickness of each of the first insulating layer and the second insulating layer is 0.5 mm-2.0 mm.
8. In the above scheme, the first insulating layer and the second insulating layer are made of one of XLPE, XLPO, FEP, and PFA.
9. In the above scheme, the cooling medium is one of engine coolant, glycol solution and silicone oil.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
the utility model discloses coaxial type charging cable, it all covers with the cooling tube in the inboard of conductor, the outside, and inside and outside cooling tube forms the return circuit, and plus the circulating pump realizes the flow of inside cooling medium, takes away the heat after the cable current-carrying rapidly to improve the current-carrying capacity of cable and reduce cable surface temperature, the current-carrying capacity is 2 to 3 times of equal cross-section high tension cable; in addition, adopt the coaxial-type structure, outer conductor is for the inner conductor, form the electromagnetic shield layer, carry out electromagnetic protection to the inner conductor, avoid inner electromagnetic leakage simultaneously, outermost control heart yearn conductor material is the copper conductor, form the shielding to coaxial current-carrying conductor, make the cable have good interference killing feature, and the conductor diameter of outer control heart yearn is far greater than traditional shielding layer thickness, have more excellent interference killing feature, especially obvious to the low-frequency interference effect, more traditional charging cable of same current-carrying capability, the cable diameter can reduce 50%, weight reduction 60%.
Drawings
Fig. 1 is a schematic structural view of the coaxial charging cable of the present invention;
FIG. 2 is an enlarged view of a local structure of the coaxial charging cable of the present invention;
figure 3 is the utility model discloses the structure enlargements of control heart yearn among the coaxial type charging cable.
In the above drawings: 1. a first cooling pipe; 2. a first copper conductor; 3. a first insulating layer; 4. a second copper conductor; 5. a fiber-filled rope; 6. a second insulating layer; 7. a release tape layer; 8. a second cooling pipe; 9. controlling the core wire; 10. a sheath layer; 11. a copper conductor; 12. an insulating layer; 13. copper monofilament; 14. a gap layer.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: the utility model provides a coaxial type charging cable for connect electric pile and the rifle that charges that fills among the high-power charging system of new energy automobile, include: the charging cable comprises a first conductor layer formed by stranding a plurality of first copper conductors 2, a first insulating layer 3 coated outside the first conductor layer, a second conductor layer formed by stranding a plurality of second copper conductors 4 outside the first insulating layer 3, a second insulating layer 6 coated outside the second conductor layer and a sheath layer 10 positioned outside the second insulating layer 6, wherein a first cooling pipe 1 is arranged at the center of the charging cable, and a second cooling pipe 8 is sleeved between the second insulating layer 6 and the sheath layer 10;
the plurality of first copper conductors 2 are tightly twisted outside the first cooling tube 1, a gap layer 14 is formed between the inner wall of the second cooling tube 8 and the outer surface of the second insulating layer 6, cooling media capable of circularly flowing are filled in the first cooling tube 1 and the gap layer 14, a plurality of control core wires 9 arranged along the circumferential direction are arranged between the second cooling tube 8 and the sheath layer 10, a fiber filling rope 5 is arranged between the adjacent control core wires 9, and the control core wires 9 and the fiber filling rope 5 are twisted in a certain twisting direction and a certain twisting distance to form a control core layer wound and covered outside the second cooling tube 8.
An isolation belt layer 7 is arranged between the control core layer and the sheath layer 10; the isolation belt layer 7 is formed by wrapping polyester non-woven fabric with low thermal conductivity on the outer surface of the control core layer; gaps are uniformly formed in the non-woven fabric, the surface temperature of the cable is further reduced by utilizing the air of fiber gaps on the non-continuous non-woven fabric for heat insulation, and the arrangement of the isolation belt layer can coat the control core wire and the fiber filling rope, so that the cable is prevented from being loosened when bent, the cable is ensured to be round, the sheath extrusion process is facilitated, the heat insulation is further realized, and the surface temperature of the sheath is reduced;
the control core wire 9 is composed of a copper conductor 11 and an insulating layer 12 tightly covering the surface of the copper conductor 11; the insulating layer 12 is made of XLPO;
the length of the gap layer 14 in the radial direction is 1 mm; the first insulating layer 3 and the second insulating layer 6 each have a thickness of 0.5 mm; the first insulating layer 3 and the second insulating layer 6 are made of XLPE; the cooling medium is engine coolant;
the first copper conductor 2 and the second copper conductor 4 are used as DC +/DC-of the charging cable; the material of the sheath layer 10 is TPU; the first copper conductor 1 and the second copper conductor 4 are formed by twisting a plurality of strands in a certain twisting distance and a certain twisting direction, and each strand consists of a plurality of copper monofilaments 13;
the diameter of the copper monofilament 13 is 0.15mm; the first cooling pipe 1 is a circular pipe with an inner diameter of 3mm; the thickness of the tube wall of the first cooling tube 1 is 0.5 mm; the first cooling pipe 1 is made of TPEE; the second cooling pipe 8 is a circular pipe, and the thickness of the pipe wall is 0.5 mm; the material of the second cooling pipe 8 is TPEE.
Example 2: the utility model provides a coaxial type charging cable for connect electric pile and the rifle that charges that fills in the high-power charging system of new energy automobile, include: the charging cable comprises a first conductor layer formed by stranding a plurality of first copper conductors 2, a first insulating layer 3 coated outside the first conductor layer, a second conductor layer formed by stranding a plurality of second copper conductors 4 outside the first insulating layer 3, a second insulating layer 6 coated outside the second conductor layer and a sheath layer 10 positioned outside the second insulating layer 6, wherein a first cooling pipe 1 is arranged at the center of the charging cable, and a second cooling pipe 8 is sleeved between the second insulating layer 6 and the sheath layer 10;
the plurality of first copper conductors 2 are tightly twisted outside the first cooling pipe 1, a gap layer 14 is formed between the inner wall of the second cooling pipe 8 and the outer surface of the second insulating layer 6, cooling media capable of circularly flowing are filled in the first cooling pipe 1 and the gap layer 14, the first cooling pipe, the first conductor layer, the first insulating layer, the second conductor layer, the second insulating layer and the second cooling pipe form a coaxial structure to form a DC +/DC-current-carrying loop of the direct-current charging cable, the cable space is fully utilized, the cable size is reduced, meanwhile, the electromagnetic interference resistance is better, cooling media such as cooling liquid are introduced into the space of the gap layer formed by the inner-layer cooling pipe and the outer-layer cooling pipe, the inner-layer cooling pipe and the outer-layer cooling pipe form a loop, an additional circulating pump is used for realizing the flowing of the internal cooling media, the heat generated by the current carrying of the cable is taken away, and the temperature is reduced, so that the current carrying capacity of the cable is improved;
be provided with a plurality of control heart yearns 9 that set up along circumference between second cooling tube 8 and restrictive coating 10, be provided with a fibre filling rope 5 between the adjacent control heart yearn 9, control heart yearn 9 forms the winding with certain lay length and hank to the transposition with fibre filling rope 5 and covers in the control sandwich layer in the second cooling tube 8 outside, control heart yearn and fibre filling rope evenly cover in the outside of second cooling tube with the spaced mode, the control heart yearn uses as charging cable's control heart yearn, fibre filling rope both can fill control heart yearn clearance in order to guarantee the cable is round, can increase the tensile breaking force of cable again, and provide the buffering when the cable is crooked, reduce the tensile force to the control heart yearn, improve the bending resistance of cable, can further keep apart the inside heat of cable, reduce cable surface temperature, make things convenient for the operation of charging.
The length of the gap layer 14 in the radial direction is 3mm; the first insulating layer 3 and the second insulating layer 6 each have a thickness of 2.0mm; the first insulating layer 3 and the second insulating layer 6 are made of PFA; the cooling medium is glycol solution;
the material of the sheath layer 10 is a PVC elastomer; the first copper conductor 1 and the second copper conductor 4 are formed by twisting a plurality of strands in a certain twisting distance and a certain twisting direction, and each strand consists of a plurality of copper monofilaments 13; the diameter of the copper monofilament 13 is 0.15 to 0.25mm;
the first cooling pipe 1 is a circular pipe with an inner diameter of 5mm; the thickness of the pipe wall of the first cooling pipe 1 is 2.0mm; the first cooling pipe 1 is made of silicon rubber; the second cooling pipe 8 is a circular pipe, and the thickness of the pipe wall is 2.0mm; the material of the second cooling pipe 8 is PFA.
By adopting the coaxial charging cable, the inner side and the outer side of the conductor are covered by the cooling pipes, the inner cooling pipe and the outer cooling pipe form a loop, the circulation pump is additionally arranged to realize the flow of an internal cooling medium, and the heat after the cable carries current is rapidly taken away, so that the current-carrying capacity of the cable is improved and the surface temperature of the cable is reduced, and the current-carrying capacity is 2 to 3 times of that of a high-voltage cable with the same section; in addition, adopt the coaxial-type structure, outer conductor is for the inner conductor, form the electromagnetic shield layer, carry out electromagnetic protection to the inner conductor, avoid inner electromagnetic leakage simultaneously, outermost control heart yearn conductor material is the copper conductor, form the shielding to coaxial current-carrying conductor, make the cable have good interference killing feature, and the conductor diameter of outer control heart yearn is far greater than traditional shielding layer thickness, have more excellent interference killing feature, especially obvious to the low-frequency interference effect, more traditional charging cable of same current-carrying capability, the cable diameter can reduce 50%, weight reduction 60%.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A coaxial type charging cable comprising: the utility model discloses a copper conductor layer, the second conductor layer that forms in the first conductor layer (3) outside, cladding in the second conductor layer (6) outside and be located sheath layer (10) in second conductor layer (6) outside, its characterized in that of forming by the transposition of a plurality of first copper conductor (2) first conductor layer, cladding in first conductor layer outside first insulating layer (3), by a plurality of second copper conductor (4) transposition: a first cooling pipe (1) is arranged in the center of the charging cable, and a second cooling pipe (8) is sleeved between the second insulating layer (6) and the sheath layer (10);
the first copper conductors (2) are tightly twisted outside the first cooling pipe (1), a gap layer (14) is formed between the inner wall of the second cooling pipe (8) and the outer surface of the second insulating layer (6), cooling media are filled in the first cooling pipe (1) and the gap layer (14), a plurality of control core wires (9) are arranged between the second cooling pipe (8) and the sheath layer (10) along the circumferential direction, a fiber filling rope (5) is arranged between the adjacent control core wires (9), and the control core wires (9) and the fiber filling rope (5) are twisted in a certain twisting distance and twisting direction to form a control core layer which is wound and covered outside the second cooling pipe (8).
2. The coaxial type charging cable according to claim 1, wherein: an isolation belt layer (7) is arranged between the control core layer and the sheath layer (10).
3. The coaxial type charging cable according to claim 2, wherein: the isolation belt layer (7) is formed by wrapping non-woven fabrics on the outer surface of the control core layer.
4. The coaxial type charging cable according to claim 3, wherein: gaps are evenly formed in the non-woven fabric.
5. The coaxial type charging cable according to claim 1, wherein: the control core wire (9) consists of a copper conductor (11) and an insulating layer (12) tightly covering the surface of the copper conductor (11).
6. The coaxial type charging cable according to claim 5, wherein: the insulating layer (12) is made of one of XLPO, PFA and FEP.
7. The coaxial type charging cable according to claim 1, wherein: the length of the gap layer (14) in the radial direction is 1 mm-3 mm.
8. The coaxial type charging cable according to claim 1, wherein: the thickness of each of the first insulating layer (3) and the second insulating layer (6) is 0.5 mm-2.0 mm.
9. The coaxial type charging cable according to claim 1, wherein: the first insulating layer (3) and the second insulating layer (6) are made of one of XLPE, XLPO, FEP and PFA.
10. The coaxial type charging cable according to claim 1, wherein: the cooling medium is one of engine coolant, glycol solution and silicone oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221600486.9U CN218159759U (en) | 2022-06-25 | 2022-06-25 | Coaxial charging cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221600486.9U CN218159759U (en) | 2022-06-25 | 2022-06-25 | Coaxial charging cable |
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| Publication Number | Publication Date |
|---|---|
| CN218159759U true CN218159759U (en) | 2022-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221600486.9U Active CN218159759U (en) | 2022-06-25 | 2022-06-25 | Coaxial charging cable |
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| Country | Link |
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| CN (1) | CN218159759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117153472A (en) * | 2023-09-27 | 2023-12-01 | 中天科技海缆股份有限公司 | submarine cable |
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2022
- 2022-06-25 CN CN202221600486.9U patent/CN218159759U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117153472A (en) * | 2023-09-27 | 2023-12-01 | 中天科技海缆股份有限公司 | submarine cable |
| CN117153472B (en) * | 2023-09-27 | 2025-09-19 | 中天科技海缆股份有限公司 | Submarine cable |
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