CN211957157U - Flexible tensile charging cable - Google Patents
Flexible tensile charging cable Download PDFInfo
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- CN211957157U CN211957157U CN202020548519.4U CN202020548519U CN211957157U CN 211957157 U CN211957157 U CN 211957157U CN 202020548519 U CN202020548519 U CN 202020548519U CN 211957157 U CN211957157 U CN 211957157U
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- 229920000181 Ethylene propylene rubber Polymers 0.000 claims abstract description 6
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Abstract
The utility model relates to a wire and cable technical field, concretely relates to flexible tensile charging cable. The signal control wire core, the power transmission wire core, the auxiliary power wire core and the conductors for protecting the ground wire core of the cable are wrapped with insulating layers; the outer side of the insulating layer of the signal control wire core is provided with a copper wire braided shielding layer, an aluminum-plastic composite tape shielding layer and an inner sheath; the signal control wire core, the power transmission wire core, the auxiliary power supply wire core and the protective ground wire core are twisted into a core in a dry shape; the outer side of the twisted core is sequentially provided with a non-woven fabric belting layer and an outer sheath; the inner sheath and the outer sheath are made of modified TPE (thermoplastic elastomer) or modified PVC (polyvinyl chloride) or cross-linked polyolefin or polyurethane elastomer materials; the insulating layer is made of modified TPE or modified PVC or ethylene propylene rubber. The charging cable can fully meet the requirements of the charging cable for the electric automobile on high tensile property, high flexibility, excellent electrical performance, flame retardant property, environment resistance, wear resistance, tearing resistance, oil resistance, corrosion resistance, rolling resistance and the like.
Description
Technical Field
The utility model relates to a wire and cable technical field, concretely relates to flexible tensile charging cable.
Background
When the cable for the charging system is used, the cable frequently moves like an oil gun, the phenomena of artificial bending, distortion, dragging and even stretching can occur, and the mechanical damage to the charging cable is easily caused; meanwhile, most charging stations are constructed in a matched manner with gas stations, so that the charging stations are at the risk of failure after being polluted by oil. Therefore, the charging cable is required to have higher flexibility, mechanical properties, oil resistance, corrosion resistance, and the like.
The cable for the charging system integrates power and control signal cable cores, and the cables bound into a whole are easily interfered by the outside, have poor anti-interference capability, influence on signal transmission and have high distortion rate. The charging cable has a large load current value, a conductor is easy to generate heat in the power-on operation of the cable, and the charging cable is in a state of frequent dragging and moving in the use process, is exposed to the external environment for a long time, and is easy to be damaged and corroded by factors such as rat gnawing, automobile rolling, sunlight irradiation, air oxidation, wet water environment, acid-base compounds and the like.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of easy damage to corrosion, poor dragging resistance, poor stretching resistance and low flexibility. The cable for the charging system has higher requirements on performance indexes: the steel has the characteristics of high and low temperature resistance, ultraviolet resistance, water vapor resistance, microorganism resistance, strong short-time overload capacity, long service life, wear resistance, oil resistance, corrosion resistance, high tensile resistance, automobile rolling resistance, repeated dragging resistance and the like;
the utility model discloses specifically realize through following technical scheme:
specifically, a flexible tensile charging cable, flexible tensile charging cable include: the power transmission cable comprises a signal control cable core, a power transmission cable core, an auxiliary power supply cable core and a protection ground cable core;
the signal control wire core, the power transmission wire core, the auxiliary power wire core and the conductor for protecting the ground wire core are wrapped with insulating layers;
the outer side of the insulating layer of the signal control wire core is sequentially provided with: the copper wire braided shielding layer, the aluminum-plastic composite tape shielding layer and the inner sheath;
the signal control wire core, the power transmission wire core, the auxiliary power supply wire core and the protective ground wire core are twisted into a core in a dry shape;
the outer side of the twisted core is sequentially provided with a non-woven fabric belting layer and an outer sheath;
the inner sheath and the outer sheath are made of modified TPE (thermoplastic elastomer), or modified PVC (polyvinyl chloride), or cross-linked polyolefin, or polyurethane elastomer;
the insulating layer is made of modified TPE (thermoplastic elastomer), modified PVC (polyvinyl chloride) or ethylene propylene rubber.
Furthermore, a fiber rope is filled between the insulating layer wrapped by the signal control core conductor and the copper wire braided layer;
the signal control wire core comprises a first signal control wire core and a second signal control wire core;
the first signal control wire core is arranged at two sides of the second signal control wire core;
the number of the first signal control core conductors is at least 2, and the number of the second signal control core conductors is at least 7.
Furthermore, a PP rope is filled between the wire core and the non-woven fabric wrapping layer.
Furthermore, the copper wire braided shielding layer is a tinned copper wire braided shielding layer.
Furthermore, the monofilament diameter of the tinned copper wire braided shielding layer is 0.12 mm; the weaving density is greater than or equal to 80%.
Furthermore, the tinned copper wire braided shielding layer is of a net structure.
Further, the overlapping rate of the aluminum-plastic composite tape shielding layer is more than or equal to 15%.
Furthermore, the flexible tensile charging cable is twisted into a core, and the small-section wire cores are dispersed around the large-section main wire core.
Furthermore, the auxiliary power supply wire cores are distributed on two sides of the protective ground wire core;
the cross section of the auxiliary power supply wire core is smaller than that of the protective ground wire core.
Furthermore, the core conductor is formed by twisting bare soft thin copper wires and reinforcing wires.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a flexible tensile charging cable has solved the defect that the cable exists from selection, shielding mode, the stranding aspect of conductor structure, insulating layer and sheath material. The charging cable fully meets the requirements of the charging cable for the electric automobile on high tensile property, high flexibility, excellent electrical performance, flame retardant property, environment resistance, wear resistance, tear resistance, oil resistance, corrosion resistance, rolling resistance and other properties, and has the comprehensive properties of power transmission, signal control, transmission and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a flexible tensile charging cable according to the present invention;
fig. 2 is a schematic cross-sectional view of a conductor of a flexible tensile charging cable according to the present invention;
fig. 3 is a schematic cross-sectional view of a signal control core of a flexible tensile charging cable according to the present invention;
description of reference numerals:
101-signal control wire core; 1011-a first signal control wire core; 1012-a second signal control core; 102-a power transmission core; 103-auxiliary power supply wire core; 104-protective earth core; 201-a conductor; 202-an insulating layer; 301-copper wire braided shielding layer; 302-aluminum plastic composite tape shielding layer; 303-an inner sheath; 304-a fiber rope; 401-PP rope; 402-non-woven fabric belting layer; 403-an outer sheath;
the purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.
Detailed Description
For better understanding of the objects, aspects and advantages of the present invention, reference will now be made to the drawings and detailed description of the preferred embodiments of the present invention, in which other advantages and features of the present invention will be apparent to those skilled in the art from the following description.
The present invention can be implemented or applied by other different embodiments, and various details in the present specification can be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Secondly, the technical solutions in the embodiments can be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or can not be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, a flexible tensile charging cable, the flexible tensile charging cable includes: a signal control wire core 101, a power transmission wire core 102, an auxiliary power supply wire core 103 and a protective ground wire core 104;
the signal control wire core 101, the power transmission wire core 102, the auxiliary power wire core 103 and the conductor 201 of the protective ground wire core 104 are wrapped by an insulating layer 202; as shown in fig. 2;
as shown in fig. 3; the outer side of the insulating layer 202 of the signal control wire core 101 is sequentially provided with: a copper wire braided shielding layer 301, an aluminum-plastic composite tape shielding layer 302 and an inner sheath 303;
the signal control wire core 101, the power transmission wire core 102, the auxiliary power wire core 103 and the protective ground wire core 104 are twisted into a dry-shaped core;
specifically, the signal control line core 101 comprises a first signal control line core 1011 and a second signal control line core 1012;
the first signal control wire core 1011 is arranged at two sides of the second signal control wire core 1012
A signal control wire core 101 is arranged on the upper side of the power transmission wire core 102, an auxiliary power supply wire core 103 and a protection ground wire core 104 are arranged on the lower side of the power transmission wire core 102, and the auxiliary power supply wire cores 103 are arranged on two sides of the protection ground wire core 104;
the power transmission line core 102 quantity be two, signal control line core 101 quantity be three (wherein first signal control line core 1011 two, second signal control line core is one), auxiliary power supply line core 103 quantity be two, protection earth core 104 quantity is one.
Specifically, the three signal control wire cores 101, the two power transmission wire cores 102, the two auxiliary power supply wire cores 103 and the protective ground wire core 104 are arranged in a dry shape from top to bottom.
The outside of the twisted core is sequentially provided with a non-woven fabric belting layer 402 and an outer sheath 403;
the inner sheath 303 and the outer sheath 403 are made of modified TPE (thermoplastic elastomer), modified PVC (polyvinyl chloride), cross-linked polyolefin or polyurethane elastomer;
the insulating layer 202 is made of modified TPE, modified PVC or ethylene propylene rubber.
At present, most of new energy automobile fills cable insulation sheath materials for electric pile and is mostly ordinary TPE material, and ordinary TPE has certain wear resistance, but its oil resistance is difficult to be qualified. More and more new energy charging pile manufacturers hope to obtain a new energy material which has good wear-resistant and flame-retardant properties, can meet good oil resistance and has excellent cost performance. According to the requirements of some indexes on the material performance, modified TPE, modified PVC, cross-linked polyolefin, polyurethane elastomer and ethylene propylene rubber materials are selected, according to different characteristics of the materials, the modified TPE or the modified PVC or the ethylene propylene rubber is adopted as insulation, and the modified TPE or the modified PVC or the cross-linked polyolefin or the polyurethane elastomer is adopted as a sheath, so that the use requirement of the charging cable of the electric automobile is met.
In the embodiment of the present invention, in the flexible tensile charging cable, a fiber rope 304 is filled between the insulating layer 202 wrapped by the conductor 201 of the signal control core 101 and the copper wire braid;
the signal control wire core 101 comprises a first signal control wire core 1011 and a second signal control wire core 1012;
the first signal control wire core 1011 is arranged at two sides of the second signal control wire core 1012;
the number of the conductors 201 of the first signal control wire core 101 is at least 2, and the number of the conductors of the second signal control wire core is at least 7.
Specifically, a PP rope 401 is filled between the wire core and the non-woven fabric belting layer 402. The copper wire braided shielding layer 301 is a tinned copper wire braided shielding layer 301.
The monofilament diameter of the tinned copper wire braided shielding layer 301 is 0.12 mm; the weaving density is greater than or equal to 80%, and the covering rate of the aluminum-plastic composite tape shielding layer 302 is greater than or equal to 15%.
That is to say, guarantee to charge signal acquisition, transmission of saturation, safety precaution in the charging process, prevent signal interference, adopt tinned copper wire woven shield after signal control sinle silk 101 transposition, the monofilament diameter is 0.12mm, and weaving density is not less than 80%, then indulge the package aluminium-plastic composite tape shielding outward, the aluminium-plastic composite tape overlaps the rate and is not less than 15%.
In other words, the cable for the charging system frequently moves like an oil gun, and the phenomena of artificial bending, twisting, dragging, even stretching and the like exist, so the charging cable is required to have high tensile strength, easy dragging, high flexibility and easy bending, and generally the cable with higher flexibility has smaller pitch diameter, so that the cables have better bending performance. Fill electric pile cable core more, the structure is complicated, and the control core is all 1.0mm and less than the small cross-section sinle silk basically, when cabling together with the main core, easy atress is too big to cause the crushing wound, leads to insulation thickness not up to standard. The main wire core and the control wire core are stressed unevenly, and the control wire core is also dislocated, so that the finished cable and the charging interface cannot be effectively wired. Therefore, the paying-off tension of each wire core is well adjusted in the cabling process, and the wire branching device is added in front of the doubling die, so that the control wire core and the main wire core do not displace when rotating along with the rocking disc. Meanwhile, the small-section wire cores are dispersed around the large-section main wire core, so that the main wire core bears the force on the doubling die during cabling, and the insulation and pressure damage of the control wire core are avoided. The cable is easy to bend and resist tension, and can be repeatedly dragged without core breaking and deformation in the using process. The cabling wire core arrangement is as shown in fig. 1, namely, a power transmission wire core 102 with a large cross section is taken as a center, a signal control wire core 101 with a small cross section, an auxiliary power supply wire core 103 with a small cross section and a protection ground wire core 104 with a small cross section are arranged on the periphery, and specifically, the three signal control wire cores 101, the two power transmission wire cores 102, the two auxiliary power supply wire cores 103 and the protection ground wire core 104 are arranged in a dry shape from top to bottom.
Specifically, in the embodiment of the present invention, the shielding layer 301 is a mesh structure. That is to say, in the composite shielding, guarantee to charge saturation, safety precaution's signal acquisition, transmission in the charging process, prevent signal interference, and to the interference field of high low frequency mixture, then adopt the tinned copper wire to weave and add the compound tape combination shielding mode of plastic-aluminum, because it is network structure to weave the shielding, the interference source of certain wavelength of certain frequency can be woven for leaking, so these can be received once more by the aluminium foil by the signal that leaks and play better shielding effect, the compound tape of plastic-aluminum still can play dampproofing effect. The tin-plated copper wire is used for improving the strength, preventing the copper wire from being corroded in the serious pollution occasions, avoiding copper oxidation and improving the weldability and the reliability.
Preferably, the flexible tensile charging cable is stranded into a core, and the small-section wire cores are dispersed around the large-section main wire core. The auxiliary power wire cores 103 are distributed on two sides of the protective ground wire core 104; the cross section of the auxiliary power wire core 103 is smaller than that of the protective ground wire core 104; the auxiliary power supply wire core is mainly used for prompting a user whether the cable is smoothly electrified or not; the protective earth core has a large section, so that when the current is unstable, the equipment can be protected in real time.
That is to say, charging cable collects power transmission, signal control in an organic whole, and each sinle silk external diameter differs great, and the stranding in-process tension is inhomogeneous, the stranding pitch is not conform to the requirement, receive the winding displacement and press into snakelike in disorder, and supplementary sinle silk and signal control sinle silk 101 external diameter are less, and the easy atress is too big to cause the crushing at the stranding in-process, leads to insulation thickness not up to standard, because the inhomogeneous condition that can also appear control sinle silk dislocation of atress leads to finished product cable and the interface that charges can not effectively be worked a telephone switchboard.
Specifically, the core conductor 201 is formed by twisting a bare soft thin copper wire and a reinforcing wire. That is to say, power transmission sinle silk 102, protection earth core 104 and auxiliary power supply sinle silk 103 conductor 201 in the high flexibility high tensile charging cable are twisted by naked soft copper wire and are formed, and signal control sinle silk 101 is crooked, distortion, is dragged even tensile repeatedly in the use, and conductor 201 is fragile, so its conductor 201 is twisted by naked soft thin copper wire, reinforcing wire and is formed. In order to ensure that the flexibility of the conductor 201 requires reasonable arrangement of the stranded wires and control the pitch and the rotating speed of the stranded wires, the conductor 201 of the signal control wire core 101 is reinforced by selecting a plurality of metal materials with high strength and the same high conductivity.
Through the utility model discloses the scheme can realize that high flexibility high tensile charging cable has that high tensile easily drags to move, high softness is flexible, superior electrical property, resistant environment, wear-resisting, anti tear, resistant oil, anticorrosion, prevent characteristics such as rolling, and possess comprehensive properties such as power transmission and signal control, transmission, by power transmission sinle silk 102, protection ground sinle silk 104, auxiliary power source sinle silk 103 and signal control sinle silk 101 crowded package in the sheath behind the common stranding, its structure is as shown in fig. 1.
The power transmission wire core 102, the protective ground wire core 104 and the auxiliary power supply wire core 103 in the high-flexibility high-tensile charging cable are formed by twisting bare soft copper wires. The signal control wire core 101 is repeatedly bent, twisted, dragged and even stretched in the using process, and the conductor 201 is easily damaged, so that the conductor 201 is formed by twisting bare soft thin copper wires and reinforcing wires.
The power transmission wire core 102 is used for transmitting electric energy to an automobile energy storage battery, and a high-elasticity, high-low temperature-resistant and excellent-electrical-property insulating layer 202 is extruded outside a conductor 201 of the power transmission wire core 102; the ground wire core 104 is protected from damage of lines and equipment, and the conductor 201 of the ground wire core 104 is protected from being extruded with an insulating layer 202 which has high elasticity, high and low temperature resistance and excellent electrical performance; the conductor 201 of the auxiliary power supply wire core 103 is extruded with an insulating layer 202 with high elasticity, high and low temperature resistance and excellent electrical performance; the signal control wire core 101 is used for signal acquisition and transmission, and is used for controlling signals of charging saturation and safety early warning, and the conductor 201 of the signal control wire core 101 is extruded with an insulating layer 202 which has high elasticity, high and low temperature resistance and excellent electrical performance.
The signal control sinle silk 101 shielding layer is used for preventing signal interference, adopts the compound shielding of tinned copper wire woven shield with indulging package plastic-aluminum composite tape after the signal control sinle silk 101 transposition, and the crowded package one deck high softness is able to bear high low temperature, resistant environment, wear-resisting, tear-resistant, resistant oil, anticorrosion, prevent rolling inner sheath behind the shielding.
The high-flexibility high-tensile-strength charging cable is formed by cabling a power transmission wire core 102, a protective ground wire core 104, an auxiliary power supply wire core 103 and a signal control wire core 101 together, and then is extruded with a high-flexibility high-low temperature resistant, environment resistant, wear resistant, tear resistant, oil resistant, corrosion resistant and rolling resistant sheath layer.
The cable for the whole charging system has the characteristics of high tensile strength, easiness in dragging, high flexibility, easiness in bending, excellent electrical performance, environment resistance, wear resistance, tearing resistance, oil resistance, corrosion resistance, rolling resistance and the like, can be used in a frequency moving state along with a charging gun, and has comprehensive characteristics of power transmission, signal control transmission and the like.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a flexible tensile charging cable which characterized in that, flexible tensile charging cable include: the power transmission cable comprises a signal control cable core, a power transmission cable core, an auxiliary power supply cable core and a protection ground cable core;
the signal control wire core, the power transmission wire core, the auxiliary power wire core and the conductor for protecting the ground wire core are wrapped with insulating layers;
the outer side of the insulating layer of the signal control wire core is sequentially provided with: the copper wire braided shielding layer, the aluminum-plastic composite tape shielding layer and the inner sheath;
the signal control wire core, the power transmission wire core, the auxiliary power supply wire core and the protective ground wire core are twisted into a core in a dry shape;
the outer side of the twisted core is sequentially provided with a non-woven fabric belting layer and an outer sheath; the inner sheath and the outer sheath are made of modified TPE (thermoplastic elastomer), or modified PVC (polyvinyl chloride), or cross-linked polyolefin, or polyurethane elastomer;
the insulating layer is made of modified TPE (thermoplastic elastomer), modified PVC (polyvinyl chloride) or ethylene propylene rubber.
2. The flexible tensile charging cable according to claim 1, wherein a fiber rope is filled between the insulating layer wrapped by the signal control core conductor and the copper wire braid;
the signal control wire core comprises a first signal control wire core and a second signal control wire core;
the first signal control wire core is arranged at two sides of the second signal control wire core;
the number of the first signal control core conductors is at least 2, and the number of the second signal control core conductors is at least 7.
3. The flexible tensile charging cable according to claim 1, wherein a PP rope is filled between the wire core and the non-woven fabric belting layer.
4. The flexible tensile charging cable according to claim 1, wherein the braided shielding layer of copper wire is a tinned braided shielding layer of copper wire.
5. The flexible tension-resistant charging cable according to claim 4, wherein the tinned copper wire braided shield has a filament diameter of 0.12 mm; the weaving density is greater than or equal to 80%.
6. The flexible tension charging cable according to claim 5, wherein the braided shield of tinned copper wire is a mesh structure.
7. The flexible tensile charging cable according to claim 1, wherein the overlapping rate of the aluminum-plastic composite tape shielding layer is greater than or equal to 15%.
8. The flexible tension charging cable as claimed in claim 1, wherein the flexible tension charging cable is twisted into a core, and the small-section core is dispersed around the large-section main core.
9. The flexible tensile charging cable according to claim 1, wherein the auxiliary power core is distributed on two sides of the protective ground core;
the cross section of the auxiliary power supply wire core is smaller than that of the protective ground wire core.
10. The flexible tensile charging cable according to claim 1, wherein the conductors of the signal control wire core, the power transmission wire core, the auxiliary power supply wire core and the protective ground wire core are formed by twisting bare soft thin copper wires and reinforcing wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020548519.4U CN211957157U (en) | 2020-04-15 | 2020-04-15 | Flexible tensile charging cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020548519.4U CN211957157U (en) | 2020-04-15 | 2020-04-15 | Flexible tensile charging cable |
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| CN211957157U true CN211957157U (en) | 2020-11-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115966332A (en) * | 2022-09-05 | 2023-04-14 | 广东粤缆电线电缆有限公司 | Charging cable for electric automobile and preparation process thereof |
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- 2020-04-15 CN CN202020548519.4U patent/CN211957157U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115966332A (en) * | 2022-09-05 | 2023-04-14 | 广东粤缆电线电缆有限公司 | Charging cable for electric automobile and preparation process thereof |
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Denomination of utility model: A flexible tensile charging cable Granted publication date: 20201117 Pledgee: Agricultural Bank of China Limited Kunming Xishan District sub branch Pledgor: Kunming Electric Cable Co., Ltd. of Kunming Cable Group Registration number: Y2024980008481 |
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