CN112002461A - Charging cable - Google Patents
Charging cable Download PDFInfo
- Publication number
- CN112002461A CN112002461A CN202011058762.9A CN202011058762A CN112002461A CN 112002461 A CN112002461 A CN 112002461A CN 202011058762 A CN202011058762 A CN 202011058762A CN 112002461 A CN112002461 A CN 112002461A
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- CN
- China
- Prior art keywords
- layer
- wires
- shielding layer
- charging cable
- conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0045—Cable-harnesses
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a charging cable, which comprises: a wire core, comprising: two signal lines; five power cords, with two the signal line transposition, the power cord includes: the first conductor is formed by stranding 41 tinned copper wires with the diameters of 0.08 +/-0.003 mm; the first insulating layer is arranged on the first conductor, has an outer diameter of 0.79 +/-0.02 mm and is made of a Teflon material; the double-layer shielding layer is arranged on the wire core part, the double-layer shielding layer is connected with the two power wires in parallel, the coating directions of the double-layer shielding layer are opposite, the shielding layer is formed by winding tinned copper wires with the diameters of 0.05 +/-0.002 mm, and the winding pitch is 18.4 +/-3 mm; and the sheath layer is arranged on the shielding layer. The invention has high charging speed.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a charging cable.
Background
The mobile phone charging wire is also called a mobile phone data wire and is a cable used for connecting a mobile phone to a computer. The common phenomenon is that one data line can be used for various mobile phone models, the data lines of some models are exaggerated, and one data line can be used for 30-40 different types of mobile phones.
At present, the fast charging technology in the mobile phone industry is mainly divided into two categories: the low-voltage large-current quick charging scheme and the high-voltage low-current quick charging scheme have low charging efficiency.
Disclosure of Invention
In order to solve at least one technical problem in the background art, the invention provides a charging cable which meets the requirements of high-voltage large-current charging and improves the charging efficiency.
The invention provides a charging cable, which comprises:
a wire core, comprising:
two signal lines;
five power cords, with two the signal line transposition, the power cord includes:
the first conductor is formed by stranding 41 tinned copper wires with the diameters of 0.08 +/-0.003 mm;
the first insulating layer is arranged on the first conductor, has an outer diameter of 0.79 +/-0.02 mm and is made of a Teflon material;
the double-layer shielding layer is arranged on the wire core part, the double-layer shielding layer is connected with the two power wires in parallel, the coating directions of the double-layer shielding layer are opposite, the shielding layer is formed by winding tinned copper wires with the diameters of 0.05 +/-0.002 mm, and the winding pitch is 18.4 +/-3 mm;
and the sheath layer is arranged on the shielding layer.
Preferably, the signal line includes:
the second conductor is formed by twisting 19 tinned copper wires with the diameter of 0.06 +/-0.003 mm and 1 polyester fiber wire of 100D;
and the second insulating layer is arranged on the second conductor, has the outer diameter of 0.76 +/-0.02 mm and is made of a teflon material.
Preferably, the wire core further comprises 6 250D first reinforcing fiber wires, and the 6 first reinforcing fiber wires are twisted with five power wires and two signal wires, and the winding pitch is 25 ± 2 mm; and 6 first reinforced fiber wires are respectively positioned in the space formed among the power line, the signal line and the shielding layer.
Preferably, the wire core is further provided with an aluminum foil layer having a thickness of 0.025 ± 0.001mm and a width of 12 ± 1mm, the aluminum foil layer being located inside the shield layer.
Preferably, the shielding layer is wound with 250D of a second reinforcing fiber wire.
Preferably, the sheath layer is made of TPE material, and the outer diameter of the sheath layer is 3.6 +/-0.08 mm.
The beneficial effects brought by one aspect of the invention are as follows:
when the cable of the invention is 1M, the resistance of the whole loop is about 70M omega, and is 120-130M omega in the prior art. The invention effectively reduces the resistance value of the cable, can pass large current when the voltage is constant, and has high power and high charging speed. And, because the resistance value is lower, the cable generates heat for a short time, and energy consumption is little, avoids the too fast intensification.
Drawings
FIG. 1 is a schematic cross-sectional view of the present disclosure.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in the present application may be combined with each other; the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, the present invention provides a charging cable, which includes:
a wire core, comprising:
two signal lines; five power lines twisted with the two signal lines; seven wire harnesses formed by the two signal wires and the five power wires form a true circle when being twisted, and the flexibility is good.
The power cord includes:
the first conductor is formed by stranding 41 tinned copper wires with the diameters of 0.08 +/-0.003 mm; the resistance requirement needs to be met.
The first insulating layer is arranged on the first conductor, has an outer diameter of 0.79 +/-0.02 mm and is made of a Teflon material; the thickness of the first insulating layer is about 0.1 mm. The Teflon material is selected to avoid breakdown. The greater the thickness of the first insulating layer, the greater the hardness. If the size is small, short circuit is easy, and the skin is easy to break.
The double-layer shielding layer is arranged on the wire core part, the double-layer shielding layer is connected with the two power wires in parallel, the coating directions of the double-layer shielding layer are opposite, and the double-layer shielding layer is more tightly coated when being coated; the shielding layer is formed by winding tinned copper wires with the diameter of 0.05 +/-0.002 mm, and the winding pitch is 18.4 +/-3 mm; the diameter of the tinned copper wire serving as the shielding layer is smaller, so that the whole cable is softer. If the diameter is smaller, the requirement of the resistance value cannot be met, and if the diameter is too large, waste is caused. If the winding pitch is too large, the shielding requirements cannot be met, and if the winding pitch is too small, overlapping can be caused; and the sheath layer is arranged on the shielding layer.
Wherein 3 power lines are used as the anode, and 2 power lines and the double-layer shielding layer are used as the cathode. The shielding layer plays a role in shielding, and meets the resistance requirement of the whole loop by matching with 2 power lines.
When the cable of the present embodiment is 1M, the resistance of the whole circuit is about 70M Ω, and 120-130M Ω in the prior art. The effectual resistance that reduces the cable of this embodiment, when voltage is fixed, can let the heavy current pass through, power is high, and charging speed is fast. And, because the resistance value is lower, the cable generates heat for a short time, and energy consumption is little, avoids the too fast intensification.
The test is carried out for 168 hours under the conditions that the voltage is 11V, the current is 6.5A, the temperature is 85 ℃, and the relative humidity is 85 percent, the temperature rise of any point of the cable is not more than 30 ℃, and the charging function of the wire rod is normal.
The embodiment realizes high-voltage large-current charging, so that the charging power reaches 71.5W, and only 23 minutes is needed for charging 4500mAh high-capacity batteries to 85%.
Further, the signal line includes:
the second conductor is formed by twisting 19 tinned copper wires with the diameter of 0.06 +/-0.003 mm and 1 polyester fiber wire of 100D; can form a true circle by 1 tinned copper wire in the inner part, 6 tinned copper wires in the middle and 12 tinned copper wires at the outermost side, thereby improving the flexibility. The polyester fiber is added to improve the tensile strength. If the diameter of the tinned copper wire is large, it is unnecessary and wasteful. If the ratio is small, the high frequency characteristics cannot be satisfied.
And the second insulating layer is arranged on the second conductor, has the outer diameter of 0.76 +/-0.02 mm and is made of a teflon material. If the diameter of the second insulation layer is large, the entire cable is allowed to harden. Meanwhile, the diameter of the whole cable is controlled to be about 3.6 +/-0.08 mm, so that the sheath layer becomes thin, and the safety is caused. If the diameter is small, the requirement of high frequency characteristics cannot be satisfied.
Further, the wire core part also comprises 6 250D first reinforced fiber wires, and the 6 first reinforced fiber wires are twisted with five power wires and two signal wires, and the winding pitch is 25 +/-2 mm; and 6 first reinforced fiber wires are respectively positioned in the space formed among the power line, the signal line and the shielding layer. 6 first reinforcing fiber threads with the number of 250D are added to increase the internal filling, so that the product is more round and soft. At the same time, the tensile strength is increased.
Further, an aluminum foil layer is arranged on the wire core part, the thickness of the aluminum foil layer is 0.025 +/-0.001 mm, the width of the aluminum foil layer is 12 +/-1 mm, and the aluminum foil layer is positioned on the inner side of the shielding layer. The shielding effect is improved.
Further, a second reinforcing fiber wire of 250D is wound on the shielding layer. The tensile strength and the torsional strength are increased.
Furthermore, the sheath layer is made of TPE materials, and the outer diameter of the sheath layer is 3.6 +/-0.08 mm. The size is small, and the use is convenient.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A charging cable, characterized in that it comprises:
a wire core, comprising:
two signal lines;
five power cords, with two the signal line transposition, the power cord includes:
the first conductor is formed by stranding 41 tinned copper wires with the diameters of 0.08 +/-0.003 mm;
the first insulating layer is arranged on the first conductor, has an outer diameter of 0.79 +/-0.02 mm and is made of a Teflon material;
the double-layer shielding layer is arranged on the wire core part, the double-layer shielding layer is connected with the two power wires in parallel, the coating directions of the double-layer shielding layer are opposite, the shielding layer is formed by winding tinned copper wires with the diameters of 0.05 +/-0.002 mm, and the winding pitch is 18.4 +/-3 mm;
and the sheath layer is arranged on the shielding layer.
2. The charging cable according to claim 1, wherein the signal line includes:
the second conductor is formed by twisting 19 tinned copper wires with the diameter of 0.06 +/-0.003 mm and 1 polyester fiber wire of 100D;
and the second insulating layer is arranged on the second conductor, has the outer diameter of 0.76 +/-0.02 mm and is made of a teflon material.
3. The charging cable according to claim 1, wherein the cable core further comprises 6 pieces of 250D first reinforcing fiber wires, the 6 pieces of the first reinforcing fiber wires being twisted with five power supply wires, two signal wires, and a winding pitch of 25 ± 2 mm; and 6 first reinforced fiber wires are respectively positioned in the space formed among the power line, the signal line and the shielding layer.
4. The charging cable according to claim 1, wherein the wire core is further provided with an aluminum foil layer having a thickness of 0.025 ± 0.001mm and a width of 12 ± 1mm, the aluminum foil layer being located inside the shield layer.
5. The charging cable of claim 1, wherein the shielding layer is wrapped with 250D second reinforcing fiber wires.
6. The charging cable according to claim 1, wherein the sheath layer is made of TPE material and has an outer diameter of 3.6 ± 0.08 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058762.9A CN112002461A (en) | 2020-09-30 | 2020-09-30 | Charging cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058762.9A CN112002461A (en) | 2020-09-30 | 2020-09-30 | Charging cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112002461A true CN112002461A (en) | 2020-11-27 |
Family
ID=73475054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011058762.9A Pending CN112002461A (en) | 2020-09-30 | 2020-09-30 | Charging cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112002461A (en) |
-
2020
- 2020-09-30 CN CN202011058762.9A patent/CN112002461A/en active Pending
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