CN214705541U - Cable for charging pile - Google Patents
Cable for charging pile Download PDFInfo
- Publication number
- CN214705541U CN214705541U CN202121065521.7U CN202121065521U CN214705541U CN 214705541 U CN214705541 U CN 214705541U CN 202121065521 U CN202121065521 U CN 202121065521U CN 214705541 U CN214705541 U CN 214705541U
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- Prior art keywords
- cable
- cooling
- control
- sheath
- charging pile
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- 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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Abstract
The utility model relates to a technical field that charges especially relates to a fill cable that electric pile used. In order to solve the problems of limited cooling effect, unsafe use and the like of the existing cooling cable, the utility model provides a cable for a charging pile, which comprises an inner sheath and an outer sheath, wherein a power wire harness and a control wire harness are inserted in the inner sheath, the outer sheath is sleeved on the inner sheath, and a plurality of supporting convex strips are arranged on the inner wall of the outer sheath at intervals; and a cooling conduit is clamped between the inner sheath and the outer sheath and is inserted into a cooling conduit groove between any two adjacent support convex strips. The utility model discloses fill the cable temperature rise that electric pile used and hang down, the cooling effect is good, and the security is high.
Description
Technical Field
The utility model relates to a technical field that charges especially relates to a fill cable that electric pile used.
Background
The new energy electric automobile is popularized and applied more and more due to the advantages of high efficiency, energy conservation, zero emission and the like. The new energy electric automobile uses the vehicle-mounted power supply as power, utilizes the motor to drive the wheels to travel, and the vehicle-mounted power supply is the storage battery that can charge really, consequently, the charging station of vehicle-mounted power supply, fill electric pile and charging power cable etc. are the indispensable infrastructure of guaranteeing that the whole car of new energy electric automobile uses.
In the development of new energy electric automobile technology, the charging speed is an important factor influencing the development of new energy electric automobiles. The charging time can be greatly shortened by high-power charging, and the charging waiting time is reduced, so that the new energy electric automobile needs to be charged by using larger and larger charging current. However, the problem of heating and high temperature rise of the cable can be inevitably caused by high-power charging with large current, and the excessive temperature rise can damage the insulating layer or the protective sleeve of the cable, accelerate the aging of the insulating layer or the protective sleeve of the cable, cause the insulating layer or the protective sleeve of the cable to lose the original electrical property and mechanical property, burn out the cable conductor and even cause damage to the human body and equipment.
To reduce the temperature rise of the cable, it is common practice to increase the cross-sectional area of the copper conductor of the cable. However, this not only makes the cable too bulky, but also causes the flexibility of the cable to deteriorate, and the manufacturing cost to increase significantly.
Compared with a common power cable, the cable for the charging pile needs to meet the requirements of light weight, small occupied space and good flexibility. In order to meet the requirement of a cable for charging piles, a cooling cable for charging piles with a cooling function appears on the market, wherein one side or two sides of an insulated wire core in the cooling cable are closely adjacent to cooling conduits which are independent of the insulated wire core and used for radiating the insulated wire core. However, such a cooling cable has the following disadvantages:
1. in the cooling cable, the cooling guide pipes are filled in gaps among the insulated wire cores, and because the gaps among the insulated wire cores in the cooling cable are limited, the number of the filled cooling guide pipes is limited, the heat dissipation and cooling effects of the cooling cable are limited;
2. in the cooling cable, the cooling conduit is filled in the gap piece of the insulating wire core, and the cooling conduit is easy to be extruded and deformed in the dragging and moving process, so that the cooling conduit is easy to bend and block; the insulated wire core is easy to generate relative movement, so that the insulated wire core is easy to deform and damage, and even the control wire core and the signal wire core generate relative movement to deform, and the phenomena of conductor breakage and the like occur;
3. the cooling liquid is injected into the cooling conduit to cool the insulated wire core, and when the cooling conduit is damaged, the cooling liquid easily flows into the cable, so that serious potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of limited cooling effect, unsafe use and the like of the existing cooling cable, the utility model provides a cable for a charging pile, which comprises an inner sheath and an outer sheath, wherein a power wire harness and a control wire harness are inserted in the inner sheath, the outer sheath is sleeved on the inner sheath, and a plurality of supporting convex strips are arranged on the inner wall of the outer sheath at intervals; and a cooling conduit is clamped between the inner sheath and the outer sheath and is inserted into a cooling conduit groove between any two adjacent support convex strips. When using, the accessible to the utility model discloses fill the cable utilization that electric pile used and insert the cooling conduit mesocycle injection coolant liquid or the cooling gas that presss from both sides between inner sheath and oversheath and cool off the cable, reduce the temperature rise of cable, improved the cooling effect of cable. Additionally, the utility model discloses in filling the cable that electric pile was used, cooling conduit presss from both sides and puts between inner sheath and oversheath, even cooling conduit takes place to buckle the damaged coolant liquid that leads to in the cooling conduit and spills over, can not cause the damage to the power pencil that is arranged in the inner sheath and control pencil yet, has improved the utility model discloses fill the safety in utilization of the cable that electric pile was used.
Preferably, the support ribs are distributed on the inner wall of the outer sheath in a twisted manner. Like this, support the sand grip and be the transposition distribution on the inner wall of outer sheath, so the cooling tube transposition winding that the cartridge supported between the sand grip at two adjacent supports is on the inner sheath, can further improve the utility model discloses fill the radiating effect of the cable that electric pile was used. Furthermore, the cooling guide pipes are stranded to form a cooling guide pipe bundle, the pitch multiple of the cooling guide pipe bundle is pm cold, and pm cold is more than or equal to 10 and less than or equal to 14. Like this, form cooling pipe bundle transposition winding on the outer wall of inner sheath by the cooling pipe transposition, can further improve the utility model discloses fill the heat dispersion of the cable that electric pile was used. Further preferably, the inner diameter of the cooling conduit is r, and r is more than or equal to 0.8mm and less than or equal to 1.2 mm; in the cooling duct bundle, the distance between two adjacent cooling ducts is l, and l is more than or equal to 1mm and less than or equal to 2 mm. Like this, after the cooling duct bundle that the cooling duct transposition formed, the transposition winding is on interior sleeve pipe again to the cooling duct bundle, can further improve the utility model discloses fill the heat dispersion of the cable that electric pile was used. Additionally, in production the utility model discloses during the cable that fills electric pile and use, can be in the outer package one deck polyester area of cooling pipe bundle, the cooling pipe bundle that will strand the formation is fixed, makes things convenient for the production of later process, improves production efficiency, reduction in production cost.
Preferably, the power supply harness includes a power supply line conductor and a power supply insulating layer, the power supply insulating layer being coated on the power supply line conductor; the control harness includes a control wire conductor and a control insulating layer, the control insulating layer being coated on the control wire conductor. The power supply wire harness and the control wire harness are simple in structure and convenient to manufacture. Furthermore, the power line conductor and the control line conductor are stranded soft copper conductors, and the power insulation layer and the control line insulation layer are made of TPE (thermoplastic elastomer), EY (EY) or XLPO (XLPO) materials. The power wire harness and the control wire harness are good in flexibility and not easy to bend and damage; the power insulating layer of the power wire harness and the control insulating layer of the control wire harness are good in insulating performance and cannot interfere with each other, and therefore charging safety and charging efficiency are improved. Preferably, the inner sheath is made of TPE or TPU material, and the outer sheath is made of TPU material. Therefore, the inner sheath is high temperature resistant, good in flexibility and flame retardant, and the outer sheath is high in mechanical strength, flame retardant and good in processing performance.
Preferably, the power wire harness and the control wire harness are twisted into a cable, the pitch multiple formed by twisting the power wire harness and the control wire harness is a pm line, and the pm line is more than or equal to 8 and less than or equal to 12. Like this, power pencil and control pencil transposition stranding, and the pitch multiple that the transposition formed is 8 to 12 to usable inner sheath is closely coated power pencil and control pencil, and then prevents the utility model discloses fill the cable that electric pile was used and cause power pencil or control pencil to take place relative displacement for taking place deformation, damage when the bending or frequently pull the removal. Furthermore, the thickness of the inner sheath is within th, and the thickness of the inner sheath is not less than 0.6mm and not more than 1.2 mm; the thickness of the outer sheath is th, and is not less than 1.0mm and not more than th and not more than 3.0 mm. Like this, when production, can according to the utility model discloses fill the thickness of the external diameter adjustment inner sheath of the cable that electric pile was used to guarantee that the inner sheath can closely coat power pencil and control pencil, avoid power pencil and control pencil to take place to warp or damaged in the use, prolong the utility model discloses fill the life of the cable that electric pile was used.
Drawings
Fig. 1 is the utility model discloses fill the terminal surface structure schematic diagram of the cable that electric pile used.
Detailed Description
The cable for charging the electric pile of the present invention will be described in detail with reference to fig. 1.
As shown in fig. 1, the cable for the charging pile of the utility model comprises an inner sheath 1 and an outer sheath 2, wherein a power wire harness 3 and a control wire harness 4 are inserted in the inner sheath 1, the outer sheath 2 is sleeved on the inner sheath 1, and a plurality of supporting convex strips 21 are arranged on the inner wall of the outer sheath 2 at intervals; a cooling duct (not shown) is interposed between the inner sheath 1 and the outer sheath 2, and the cooling duct is inserted into the cooling duct groove 22 between any two adjacent support ribs 21. Preferably, the support ribs 21 are twisted on the inner wall of the outer sheath 2. Like this, support sand grip 21 and be the transposition distribution on the inner wall of outer sheath 2, so the cooling pipe transposition winding in the cooling pipe groove 22 of cartridge between adjacent two support sand grips 21 is on inner sheath 1, can improve the utility model discloses fill the radiating effect of the cable that electric pile was used.
When using, the accessible to the utility model discloses fill the cable utilization that electric pile used and insert the cooling conduit mesocycle injection coolant liquid or the cooling gas that insert between inner sheath 1 and oversheath 2 and cool off the cable, reduce the temperature rise of cable, improved the cooling effect of cable. Additionally, the utility model discloses in filling the cable that electric pile was used, cooling conduit presss from both sides and puts between inner sheath 1 and oversheath 2, even the cooling conduit that is arranged in certain cooling conduit groove 22 takes place to buckle the damage and leads to the coolant liquid in the cooling conduit to spill over, can not cause the damage to power pencil 3 and control pencil 4 that are arranged in inner sheath 1 yet, improved the utility model discloses fill the safety in utilization of the cable that electric pile was used.
The power supply harness 3 includes a power supply conductor 31 and a power supply insulating layer 32, the power supply insulating layer 32 being coated on the power supply conductor 31; the control harness 4 includes a control wire conductor 41 and a control insulating layer 42, and the control insulating layer 42 is coated on the control wire conductor 41. The power supply wire harness 3 and the control wire harness 4 are simple in structure and convenient to manufacture. Preferably, the power conductor 31 and the control conductor 41 are stranded soft copper conductors, and the power insulation layer 32 and the control insulation layer 42 are made of TPE (Thermoplastic Elastomer), EY (ethylene propylene rubber) or XLPO (cross-linked polyolefin) materials. The power wire harness and the control wire harness are good in flexibility and not easy to bend and damage; the power insulating layer of the power wire harness and the control insulating layer of the control wire harness are good in insulating performance and cannot interfere with each other, and therefore charging safety and charging efficiency are improved. Preferably, the inner sheath is made of TPE or TPU (Thermoplastic polyurethanes) material, and the outer sheath is made of TPU material. Therefore, the inner sheath is high temperature resistant and good in flexibility, and the outer sheath is cold resistant, high in mechanical strength and good in processing performance. Preferably, the power wire harness 3 and the control wire harness 4 are twisted into a cable, the pitch multiple formed by twisting the power wire harness 3 and the control wire harness 4 is a pm line, and the pm line is more than or equal to 8 and less than or equal to 12. Like this, power pencil 3 and control pencil 4 transposition stranding, and the pitch multiple that the transposition formed is 8 to 12 to usable inner sheath 1 closely coats power pencil 3 and control pencil 4, and then prevents the utility model discloses the cable that fills electric pile usefulness causes power pencil 3 or control pencil 4 relative inner sheath 1 to take place relative displacement when the bending or frequently pull the removal for taking place deformation, damage. Preferably, the thickness of the inner sheath 1 is within th, and is more than or equal to 0.6mm and less than or equal to 1.2mm within th; the thickness of the outer sheath 2 is th, and is more than or equal to 1.0mm and less than or equal to 3.0 mm. Like this, when production, can be according to the utility model discloses fill the thickness of the external diameter adjustment inner sheath 1 of the cable that electric pile was used to guarantee that inner sheath 1 can closely coat power pencil 3 and control pencil 4, avoid power pencil 3 and control pencil 4 to take place to warp or damaged in the use, prolong the utility model discloses fill the life of the cable that electric pile was used.
The cooling guide pipes are twisted to form a cooling guide pipe bundle, the pitch multiple of the cooling guide pipe bundle is pm cold, and pm cold is more than or equal to 10 and less than or equal to 14. Like this, form cooling pipe bundle transposition winding on the outer wall of inner sheath 1 by the cooling pipe transposition, can further improve the utility model discloses fill the heat dispersion of the cable that electric pile was used. Preferably, the inner diameter of the cooling conduit is r, and r is more than or equal to 0.8mm and less than or equal to 1.2 mm; in the cooling duct bundle, the distance between two adjacent cooling ducts is l, and l is more than or equal to 1mm and less than or equal to 2 mm. Like this, after the cooling pipe bundle that the cooling pipe transposition formed, the transposition winding is on interior sleeve pipe 1 again for the cooling pipe bundle, can further improve the utility model discloses fill the heat dispersion of the cable that electric pile was used.
When the cable for the charging pile is produced, the power wire harness 3 and the control wire harness 4 need to be twisted into a cable, and the value range of a pitch multiple pm line formed by twisting is [8, 12], wherein the power wire harness 3 consists of power line conductors 31 and power insulation layers 32, and the number of the power line conductors 31 is not limited to 2-5; the control wire harness is composed of control wire conductors 41 and control wire insulating layers 42, and the number of the control wire conductors is not limited to 2-5; when the power harness 3 and the control harness 4 are twisted into a cable, the total number of the power harness 3 and the control harness 4 includes, but is not limited to, 1-3 bundles. Then, process into inner sheath 1 with TPE or TPU material production through the extrusion mode, this inner sheath 1's thickness is 0.6mm to 1.2mm, and this inner sheath 1 is closely crowded package of cable that power pencil 3 and control pencil 4 transposition formed, thereby can prevent the utility model discloses power pencil 3 and/or control pencil 4 in the cable that fills electric pile usefulness are because of crooked or frequently pull the removal and take place to warp, damage including 1 inside relative movement of taking place of sheath. Then, stranding the cooling guide pipes to form a cooling guide pipe bundle, and simultaneously controlling the pitch multiple pm of the cooling guide pipe bundle to be between 10 and 14; a layer of polyester tape is wound outside the cooling conduit bundle, the cooling conduits in the cooling conduit bundle are fixed, and the cooling conduit bundle is twisted and uniformly wound on the inner sheath 1, so that the cooling conduits are prevented from moving relatively when being twisted and wound on the outer wall of the inner sheath 1, and the production efficiency, the production quality and the production cost are prevented from being influenced. And finally, extruding the flame-retardant TPU material to form the outer sheath 2 in an extrusion mode, synchronously removing the polyester tape wrapped on the cooling conduit bundle in the extrusion process, and simultaneously controlling the thickness of the outer sheath 2 to be 1.0 mm-3.0 mm.
Production and processing obtains like this the utility model discloses fill cable that electric pile used has following advantage:
1. a plurality of cooling conduits are twisted and wound on the inner sheath 1, so that the heat transfer contact area is larger, and the heat dissipation effect is good; when using, can circulate in the cooling duct and pour into coolant liquid or cooling gas into, can take away fast the utility model discloses fill the heat that power harness produced in the in-process of charging in the cable that electric pile used, realize the effective cooling to power harness, thereby reduce effectively the utility model discloses fill the charging temperature of the cable that electric pile used, improved greatly the utility model discloses fill the thermal diffusivity of the cable that electric pile used.
2. The transposition winding has a plurality of cooling ducts on the outer wall of inner sheath 1, when pouring into cooling duct with coolant liquid or cooling gas, can not lead to because of the damaged cable that individual cooling duct is scrapped the utility model discloses fill the electric pile and use simultaneously, because power pencil and control pencil overcoat have laid inner sheath 1, when leading to the coolant liquid to spill over when individual cooling duct is damaged, the coolant liquid can not flow into power pencil and/or control pencil, more can not consequently cause the safety problem of charging.
3. Adopt the extrusion mode once only to extrude the formation oversheath with the TPU material to can make oversheath 2 and inner sheath 1 cohere as an organic wholely, and then with the intact clamp of cooling pipe fix between inner sheath 1 and oversheath 2, and form the support sand grip between two adjacent cooling pipes or cooling pipe restraints, avoid the utility model discloses fill the cable that electric pile was used frequently pull and remove in-process extrusion cooling pipe and lead to the cooling pipe to take place to warp.
4. The utility model discloses adopt fire-retardant TPU material extrusion and package to apply including sheath and the outer oversheath of cooling pipe or cooling pipe bundle of winding on the outer wall of inner sheath in the cable that fills electric pile usefulness, cold-resistant, still have good elasticity and compliance when 35 ℃ below zero, can avoid the utility model discloses the cable that fills electric pile usefulness is because of cold and sclerosis in cold region, influences the utility model discloses the bending property and the mobility of the cable that fills electric pile usefulness enlarge the utility model discloses fill the applicable region of the cable that electric pile usefulness.
Claims (9)
1. The cable for the charging pile is characterized by comprising an inner sheath and an outer sheath, wherein a power supply wiring harness and a control wiring harness are inserted into the inner sheath, the outer sheath is sleeved on the inner sheath, and a plurality of supporting convex strips are arranged on the inner wall of the outer sheath at intervals; and a cooling conduit is clamped between the inner sheath and the outer sheath and is inserted into a cooling conduit groove between any two adjacent support convex strips.
2. The charging pile cable of claim 1, wherein the support ribs are distributed in a twisted manner on the inner wall of the outer sheath.
3. The charging pile cable of claim 2, wherein the cooling ducts are twisted to form a cooling duct bundle having a pitch multiple pmColdAnd 10 is less than or equal to pmCold≤14。
4. The charging pile cable according to claim 3, wherein the cooling conduit has an inner diameter r of 0.8mm ≤ r of 1.2 mm; in the cooling duct bundle, the distance between two adjacent cooling ducts is l, and l is more than or equal to 1mm and less than or equal to 2 mm.
5. The charging pile cable according to any one of claims 1 to 4, wherein the power supply harness comprises a power supply conductor and a power supply insulating layer, the power supply insulating layer being coated on the power supply conductor; the control harness includes a control wire conductor and a control insulating layer, the control insulating layer being coated on the control wire conductor.
6. The charging pile cable of claim 5, wherein the power conductor and the control conductor are stranded soft copper conductors, and the power insulation layer and the control insulation layer are made of TPE, EY or XLPO materials.
7. The charging pile cable of claim 5, wherein the inner sheath is made of TPE or TPU material, and the outer sheath is made of TPU material.
8. The charging pile cable according to any one of claims 1 to 4, wherein the power harness and the control harness are twisted to form a cable, and a pitch multiple formed by twisting the power harness and the control harness is pmThreadAnd pm is not more than 8Thread≤12。
9. The cable for a charging pile according to claim 8, wherein the inner sheath has a thickness thInner partAnd 0.6mm is less than or equal to thInner partLess than or equal to 1.2 mm; the thickness of the outer sheath is thOuter coverAnd 1.0mm is less than or equal to thOuter cover≤3.0mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121065521.7U CN214705541U (en) | 2021-05-18 | 2021-05-18 | Cable for charging pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121065521.7U CN214705541U (en) | 2021-05-18 | 2021-05-18 | Cable for charging pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214705541U true CN214705541U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121065521.7U Active CN214705541U (en) | 2021-05-18 | 2021-05-18 | Cable for charging pile |
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| CN (1) | CN214705541U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130129A (en) * | 2021-05-18 | 2021-07-16 | 上海飞航电线电缆有限公司 | Cable for charging pile |
| CN118299115A (en) * | 2024-03-29 | 2024-07-05 | 山东航空学院 | High-power charging pile liquid cooling cable and charging gun head adapter |
-
2021
- 2021-05-18 CN CN202121065521.7U patent/CN214705541U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130129A (en) * | 2021-05-18 | 2021-07-16 | 上海飞航电线电缆有限公司 | Cable for charging pile |
| CN118299115A (en) * | 2024-03-29 | 2024-07-05 | 山东航空学院 | High-power charging pile liquid cooling cable and charging gun head adapter |
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