CN218274029U

CN218274029U - USB fills line soon

Info

Publication number: CN218274029U
Application number: CN202221770148.XU
Authority: CN
Inventors: 刘国强; 郑俊超; 舒波
Original assignee: Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; LTK Electric Wire Changzhou Co Ltd
Current assignee: Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; LTK Electric Wire Changzhou Co Ltd; Shenzhen Woer Special Cable Co Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2023-01-10
Anticipated expiration: 2032-07-08

Abstract

The application discloses a USB quick charging line, and relates to the technical field of cables; the USB quick-charging wire sequentially comprises an outer protective layer, a winding layer, a wrapping layer and a core wire layer from outside to inside; the core wire layer comprises a filling body, a plurality of first conductors, a plurality of second conductors and a plurality of third conductors; the plurality of first conductors concentrically surround the filler, and the second conductors and the third conductors are uniformly distributed between the adjacent first conductors by taking the filler as an axis; adopt the technical scheme that this application provided to solve current fill line conductor fast and to have resisted the bending performance relatively poor, lead to the shorter technical problem of life.

Description

USB fills line soon

Technical Field

The application relates to the technical field of cables, in particular to a USB quick charging line.

Background

USB-IF organizations issue the latest USB Type-C interface and the V2.1 version standard protocol of cable, the power supply capacity is improved from 100W to 240W, the requirements of high-power transmission of 48V 5A on the wire are stricter, most of the data charging wires on the market are still the 100W power design before use, the PE and PVC materials are used for manufacturing, the performances of high and low temperature flame retardance, bending resistance and flexibility are poor, the problems of blackening, dirty and cracking and the like can occur due to the fact that the wire is bent and is in contact with the sheath of the wire by hand in the long-term use process, at the moment, potential safety hazards can be caused in the charging process of equipment, and resource waste and economic loss are caused by replacement.

Specifically, the following problems are mainly analyzed in the prior art:

1. the existing quick-charging wire conductor mostly adopts a tinned stranded conductor with poor bending resistance, the flexibility and the bending resistance of the conductor are poor, the conductor is easy to break in the bending process after long-term use, the condition of open circuit and short circuit is caused, and great potential safety hazards are caused;

2. the existing products mostly adopt PE, PVC and other materials, and the materials have low temperature resistance level, poor flame retardant property and poor fatigue resistance;

3. the existing product structure is designed as 1P +2C +1C, the structure is not round enough, the flexibility and the bending resistance of a wire rod are poor, the swing test data are mostly about 1000-3000 times, and the problems of core wire breakage, skin breakage and the like can not be caused when one charging wire is used for one year.

SUMMERY OF THE UTILITY MODEL

This application aim at provides a USB fills line soon, adopts the technical scheme that this application provided to solve current fill line conductor soon and to endure that the bending resistance is relatively poor, leads to the shorter technical problem of life.

In order to solve the technical problem, the application provides a USB quick-charging wire, which sequentially comprises an outer protective layer, a winding layer, a wrapping layer and a core wire layer from outside to inside;

the core wire layer comprises a filling body, a plurality of first conductors, a plurality of second conductors and a plurality of third conductors; the plurality of first conductors concentrically surround the filler, and the second conductors and the third conductors are uniformly distributed between the adjacent first conductors by taking the filler as an axis;

in the above scheme, the first conductor concentrically surrounds the filler, and the second conductor and the third conductor are uniformly distributed between adjacent first conductors by taking the filler as an axis, so as to sequentially form a core wire layer; therefore, the conductors in the scheme are reasonably matched, a round core wire layer structure is formed, the bending resistance of the wire is effectively improved, and the service life of the wire is prolonged.

Preferably, the first conductor comprises a first core wire and a first insulating layer coated on the periphery of the first core wire;

the first core wire is a tinned copper wire, and the first insulating layer is made of an ETFE material;

in the scheme, the first conductor adopts the tinned copper wire as the core wire, has enough tensile strength, adopts the ETFE material as the insulating coating layer of the first conductor, and effectively improves various performances of the first conductor under the cooperation of the tinned copper wire and the insulating coating layer, such as low and high temperature resistance, corrosion resistance, bending resistance and flame retardance; wherein the temperature resistant grade is increased to-80-220 ℃, and the integral performance of the USB quick charging line is effectively improved.

Preferably, the second conductor is a tin-copper alloy wire;

preferably, the second conductor is 19 tin-copper alloy wires with the thickness of 0.04mm, and the tin content is preferably 0.6%;

in above-mentioned scheme, the second conductor adopts the tin-copper alloy, possesses high-efficient signal transmission and simultaneously has good resistant characteristic of buckling, further promotes cable physical strength and anti buckling performance.

Preferably, the third conductor comprises a third core wire and a double copper foil wound on the periphery of the third core wire;

the third core wire is an anti-bullet wire;

preferably, the third conductor is 0.2mm +100D bulletproof wire, and the double-piece copper foil is wound on the 100D bulletproof wire;

in the above scheme, the third conductor adopting the above structure also has good bending resistance, and the service life can be further effectively prolonged.

Preferably, the wrapping layer comprises a first wrapping layer and a second wrapping layer;

the first wrapping layer wraps the periphery of the core wire layer and is made of aluminum foil Mylar;

the second wrapping layer wraps the periphery of the first wrapping layer and is a PEFE (polyethylene ethylene) wrapping tape;

in the above scheme, adopt the aluminium foil wheat to draw around the package first layer, can effectively fix the wire rod structure and play shielding signal interference's effect, the second floor selects for use the fine PTFE band of antifatigue temperature-resistant performance, lubricated aluminium foil and winding copper wire, makes the wire rod softer, and it is better to sway the performance.

Preferably, the winding layer comprises a first winding layer and a second winding layer, and the first winding layer and the second winding layer are formed by winding a plurality of tinned copper wires;

one of the first winding layer and the second winding layer is wound in the Z direction, and the other winding layer is wound in the S direction;

in the above scheme, adopt this scheme further preferably with softer 0.06mm superfine copper wire and double-deck reverse winding design, offset the unilateral atress problem that produces when unidirectional winding, the wire rod is softer. The double layer reverse winding also enhances the EMI performance of the wire; in addition, the winding copper wire and two first conductors are used together as GND, and the overall wire diameter of the wire is reduced.

Preferably, a third wrapping layer is further arranged between the first wrapping layer and the second wrapping layer; the third wrapping layer is made of a PEFE material;

in the above scheme, the third taped covering made of the PEFE material can effectively buffer two copper wire winding layers.

Preferably, the outer protective layer comprises a sheath coated on the periphery of the winding layer and an outer netting coated on the periphery of the sheath;

the sheath is made of a silica gel material;

in the implementation process, the protective sleeve selects the silica gel with good performances of softness, temperature resistance, corrosion resistance, bending resistance, flame retardance, rebound resilience and the like as the protective layer material of the cable, so that various performances of the cable are further improved, and the service life of the cable is prolonged.

Preferably, the outer netting is made of PET material;

in above-mentioned scheme, outer netting adopts fire-retardant wear-resisting PET material, and the protection sheath makes the wire rod stand wear and tear and antifatigue characteristic more, weaves simultaneously and also can provide more various colour collocation and select.

Preferably, the filling body is an anti-bullet wire;

in the above scheme, kevlar is adopted for filling, so that the roundness and the flexibility of the wire rod are ensured, and the tensile strength of the wire rod is improved.

Compared with the prior art, the beneficial effect of this application lies in: the scheme reasonably constructs each conductor, the first conductor concentrically surrounds the filling body, and the second conductor and the third conductor are uniformly distributed between the adjacent first conductors by taking the filling body as an axis to sequentially form a core wire layer; therefore, the conductors in the scheme are reasonably matched, a round core wire layer structure is formed, the bending resistance of the wire rod is effectively improved, and the service life of the wire rod is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a cross-sectional structural schematic view of a cable according to an embodiment of the present application;

wherein: 10. an outer jacket; 11. weaving the net outside; 12. a sheath; 20. a winding layer; 21. a first winding layer; 22. a second winding layer; 30. wrapping a covering; 31. a first lapping layer; 32. a second lapping layer; 40. a core wire layer; 41. a first conductor; 411. a first core wire; 412. a first insulating layer; 42. a second conductor; 43. A third conductor; 44. a filler; 45. and a third lapping layer.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it is to be understood that the terms "upper", "lower", "side", "front", "rear", and the like indicate orientations or positional relationships based on installation, and are merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and operate, and therefore should not be construed as limiting the present application.

In the description of the present application, it should be noted that the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone.

It should be noted that, in the embodiments of the present application, the same reference numerals are used to refer to the same components or parts, and for the same parts in the embodiments of the present application, only one of the components or parts may be used as an example to refer to the reference numeral, and it should be understood that, for other similar components or parts, the reference numerals are also used.

For a further understanding of the contents, features and functions of the present invention, reference will now be made to the following examples, which are illustrated in the accompanying drawings and described in the following detailed description:

examples

Most of the data charging wires in the market are still designed by the previous 100W power, the charging wires are made of PE and PVC materials, the performances of high and low temperature flame retardance, bending resistance and flexibility are poor, the problems of blackening, dirt, cracking and the like can occur due to bending and hand contact with the outer skin of the wire rod in the long-term use process, and potential safety hazards can be caused in the charging process of equipment and resource waste and economic loss are caused by replacement; in order to solve the technical problem, the present embodiment provides the following technical solutions:

specifically, referring to fig. 1, the present embodiment provides a USB quick-charging cable, which comprises an outer sheath 10, a winding layer 20, a wrapping layer 30 and a core wire layer 40 in sequence from outside to inside;

specifically, the core layer 40 includes a filler 44, a plurality of first conductors 41, a plurality of second conductors 42, and a plurality of third conductors 43; the plurality of first conductors 41 concentrically surround the filler 44, and the second conductors 42 and the third conductors 43 are uniformly distributed between the adjacent first conductors 41 by taking the filler 44 as an axis;

in some embodiments, the first conductor 41 includes five, the second conductor 42 includes two, the third conductor 43 includes three, and the filler 44 includes one.

In the above scheme, the first conductors 41 concentrically surround the filler 44, and the second conductors 42 and the third conductors 43 are uniformly distributed between adjacent first conductors 41 with the filler 44 as an axis to sequentially form the core wire layer 40; therefore, the conductors in the scheme are reasonably matched, a round core wire layer 40 structure is formed, the bending resistance of the wire rod is effectively improved, and the service life of the wire rod is prolonged.

Further, in some of these embodiments, three first conductors 41 are used for VBOS; two first conductors 41 are used for GND in common with the winding layer 20; two second conductors 42 are used for USB2.0; three third conductors 43 are used for CC, PD, MODE.

Specifically, the first conductor 41 includes a first core 411 and a first insulating layer 412 covering the first core 411;

further, the first core 411 is a tin-plated copper wire, and the first insulating layer 412 is made of an ETFE material;

furthermore, the first conductor 41 uses 127 tinned copper wires of 0.04mm, the pitch is 6-8 mm, the tensile strength of the copper wires is required to be 400MPa, the elongation is more than 1.4%, and the thickness of the tin layer is 0.3+/-0.1 μm.

In the above scheme, the first conductor 41 adopts a tinned copper wire as a core wire, has sufficient tensile strength, adopts an ETFE material as an insulating coating layer thereof, and effectively improves various performances of the first conductor 41 such as low and high temperature resistance, corrosion resistance, bending resistance and flame retardancy in cooperation with the core wire and the ETFE material; wherein the temperature resistant grade is increased to-80-220 ℃, and the integral performance of the USB quick charging line is effectively improved.

Specifically, the second conductor 42 is a tin-copper alloy wire;

furthermore, the second conductor 42 is made of 19 tin-copper alloy wires with the thickness of 0.04mm, and the tin content is preferably 0.6%;

in the above scheme, the second conductor 42 is made of tin-copper alloy, so that the cable has high-efficiency signal transmission and good bending resistance, and the physical strength and bending resistance of the cable are further improved.

Specifically, the third conductor 43 includes a third core and a double copper foil wound around the outer periphery of the third core;

further, the third core wire is an anti-bullet wire;

furthermore, the third conductor 43 is made of 0.2mm +100D bulletproof wire, and the double-piece copper foil is wound on the 100D bulletproof wire;

in the above solution, the third conductor 43 with the above structure also has good bending resistance, and thus the service life can be effectively prolonged.

Furthermore, 100% untwisting equipment is adopted for total twisting of the core wire layer 40, S-direction twisting is conducted, the twisting pitch is 8-10 times of the wire diameter, and the ultra-small twisting distance further improves flexibility and bending resistance of the wire.

Specifically, the wrapping layer 30 includes a first wrapping layer 31 and a second wrapping layer 32;

the first wrapping layer 31 is wrapped on the periphery of the core wire layer 40 and is aluminum foil mylar;

further, the second wrapping layer 32 is wrapped on the periphery of the first wrapping layer 31 and is a PEFE wrapping tape;

in above-mentioned scheme, adopt the aluminium foil wheat to draw around the package first layer, can effectively fix the wire rod structure and play shielding signal interference's effect, the second floor is chooseed for use the fine PTFE band of antifatigue temperature-resistant performance, lubricated aluminium foil and winding copper wire, makes the wire rod softer, sways the performance better.

Specifically, the winding layer 20 comprises a first winding layer 21 and a second winding layer 22, and the first winding layer 21 and the second winding layer 22 are formed by winding a plurality of tinned copper wires;

furthermore, one of the first winding layer 21 and the second winding layer 22 is wound in the Z direction, and the other is wound in the S direction;

in the above scheme, adopt this scheme further preferably with softer 0.06mm superfine copper wire and double-deck reverse winding design, offset the unilateral atress problem that produces when unidirectional winding, the wire rod is softer. The double layer reverse winding also enhances the EMI performance of the wire; in addition, the winding copper wire and two first conductors 41 are used together as GND, and the overall wire diameter of the wire is reduced.

Further, the first winding layer 21 is formed by winding 110 tinned copper wires with the diameter of 0.06m, and the second winding layer 22 is formed by winding 115 tinned copper wires with the diameter of 0.06 m.

Specifically, a third wrapping layer 4530 is further arranged between the first wrapping layer 21 and the second wrapping layer 22; the third wrapping layer 4530 is made of PEFE material;

in the above scheme, the third wrapping layer 4530 made of PEFE material can effectively buffer the two copper wire winding layers 20.

Specifically, the outer protective layer 10 comprises a sheath 12 covering the outer periphery of the winding layer 20, and an outer netting 11 covering the outer periphery of the sheath 12;

further, the sheath 12 is made of a silicone material;

in the above scheme, the sheath 12 is made of soft, temperature-resistant, corrosion-resistant, bending-resistant, flame-retardant and resilient silica gel, which further improves various performances of the cable and prolongs the service life of the cable.

Furthermore, the hardness of the silica gel is 60A, and meanwhile, the adhesive force of the sheath 12 is 2-4 kgf/50mm by adopting an extrusion mode of a semi-extrusion pipe.

Preferably, the outer netting 11 is made of PET material;

further, 48 ingots of 200D flame retardant and abrasion resistant PET were used.

In the above scheme, outer netting 11 adopts fire-retardant wear-resisting PET material, and protection sheath 12 makes the wire rod stand wear and tear more and antifatigue characteristic, improves wire rod wear resistance, and protection sheath 12 avoids sweat stain dust pollution corruption, weaves simultaneously and also can provide more diversified colour collocation selection.

Preferably, the filling body 44 is a ballistic filament;

in the above scheme, the filler 44 is Kevlar, which ensures the roundness and flexibility of the wire rod and improves the tensile strength of the wire rod.

To sum up, the USB that this scheme provided fills cable soon adopts stranded conductor to add the design of multicore, and insulating and sheath 12 adopts the better ETFE and the silica gel material of high temperature resistant fire behavior, and outmost adoption PET netting plays the guard action, fine solution the fire-retardant gentle and resistant bending performance of product, each item resistance is excellent, sways the test and can reach more than 10 ten thousand, and wire rod life can reach 10 years.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The above description is only for the preferred embodiment of the present application, and is not intended to limit the present application in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present application are included in the scope of the present application.

Claims

1. The utility model provides a USB fills line soon which characterized in that: the USB quick-charging wire sequentially comprises an outer protective layer, a winding layer, a wrapping layer and a core wire layer from outside to inside;

the core wire layer comprises a filling body, a plurality of first conductors, a plurality of second conductors and a plurality of third conductors; the plurality of first conductors concentrically surround the filling body, and the second conductors and the third conductors are uniformly distributed between the adjacent first conductors by taking the filling body as an axis.

2. The USB fast charging line according to claim 1, characterized in that: the first conductor comprises a first core wire and a first insulating layer coated on the periphery of the first core wire;

the first core wire is a tinned copper wire, and the first insulating layer is made of an ETFE material.

3. The USB fast charging line according to claim 1, characterized in that: the second conductor is a tin-copper alloy wire.

4. The USB fast charging line according to claim 1, characterized in that: the third conductor comprises a third core wire and a double-piece copper foil wound on the periphery of the third core wire;

the third core wire is an anti-bullet wire.

5. The USB fast charging line according to claim 1, characterized in that: the wrapping layer comprises a first wrapping layer and a second wrapping layer;

the second is around the covering cladding in first is around the covering periphery, and is the PEFE band.

6. The USB fast charging line according to claim 1, characterized in that: the winding layer comprises a first winding layer and a second winding layer, and the first winding layer and the second winding layer are formed by winding a plurality of tinned copper wires;

one of the first winding layer and the second winding layer is wound in the Z direction, and the other winding layer is wound in the S direction.

7. The USB fast charging line of claim 6, characterized in that: a third wrapping layer is further arranged between the first wrapping layer and the second wrapping layer; the third wrapping layer is made of PEFE materials.

8. The USB fast charging line according to claim 1, characterized in that: the outer protective layer comprises a sheath coated on the periphery of the winding layer and an outer netting coated on the periphery of the sheath;

the sheath is made of a silicone material.

9. The USB fast charging cable of claim 8, characterized in that: the outer netting is made of PET material.

10. The USB fast charging line according to claim 1, characterized in that: the filling body is made of bulletproof wires.