CN215496096U

CN215496096U - Charging cable

Info

Publication number: CN215496096U
Application number: CN202121372511.8U
Authority: CN
Inventors: 胡平
Original assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd
Current assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-01-11
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a charging cable which comprises an inner core and a protective layer coated outside the inner core, wherein the inner core comprises a main power supply core wire group used for transmitting large current and a signal core wire group used for transmitting signals, the protective layer comprises a non-woven fabric layer and a heat-shrinkable layer coated outside the non-woven fabric layer, and the main power supply core wire group and the signal core wire group are both coated in the non-woven fabric layer. The non-woven fabric layer has a moisture-proof effect, is soft in material and can be well attached to the inner core, and the gap between the inner core and the heat-shrinkable layer is filled to protect the inner core, so that the inner core is not easy to weaken the mutual combination of all core wires due to overlarge gap, and the stability of the structure of the inner core is not influenced; the pyrocondensation layer is used for the isolation protection inner core to have wear-resisting, resistant crooked characteristic, when charging cable used in the open air, charging cable was difficult because remove crooked and make pyrocondensation layer fracture, thereby improved charging cable's life, made the inner core be difficult for exposing in the external world and take place potential safety hazards such as electric leakage.

Description

Charging cable

Technical Field

The utility model relates to the technical field of charging, in particular to a charging cable.

Background

The existing charging cable generally has a core wire used for charging and signal transmission, a non-woven fabric layer coated outside the core wire, and an insulating sheath coated outside the non-woven fabric layer, wherein the insulating sheath usually adopts PPC (polypropylene random copolymer) and common polyethylene materials, and the like.

In view of the above, it is desirable to provide a charging cable to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a charging cable, which is characterized in that a heat-shrinkable layer is coated outside a main power supply core wire group and a signal core wire group, and the heat-shrinkable layer has the characteristics of wear resistance, bending resistance and the like, so that the problem that the charging cable is easy to crack when being used outdoors is solved.

In order to achieve the above object, the present invention provides a charging cable, including an inner core and a protective layer coated outside the inner core, wherein the inner core includes a main power core wire group for transmitting a large current and a signal core wire group for transmitting a signal;

the inoxidizing coating includes non-woven fabrics layer and pyrocondensation layer, main power core group with signal core group all is wrapped in the non-woven fabrics in situ, the cladding of non-woven fabrics layer outward has the pyrocondensation layer.

Further, the heat-shrinkable layer is a heat-shrinkable sleeve, and the heat-shrinkable sleeve is coated outside the non-woven fabric layer in a heat-shrinkable mode.

Furthermore, the heat-shrinkable layer is made of a cross-linked polyethylene material.

Further, the inner core further comprises an auxiliary power supply core wire group and a ground wire, and the main power supply core wire group, the signal core wire group, the auxiliary power supply core wire group and the ground wire are stranded into the inner core and are wrapped by the non-woven fabric layer.

Furthermore, the gaps among the main power core wire group, the signal core wire group, the auxiliary power core wire group and the ground wire are filled with fillers, and the non-woven fabric layer is further coated outside the fillers.

Further, when viewed in a direction perpendicular to the cross section of the inner core, the auxiliary power core line group and the signal core line group are both located on an upper side of the main power core line group, and the ground line is located on a lower side of the main power core line group.

Further, the main power supply core wire group includes a first main power supply core wire and a second main power supply core wire in contact with the first power supply core wire, the signal core wire group includes a first signal core wire and a second signal core wire in contact with the first signal core wire, the first signal core wire is in contact with the first main power supply core wire, and the second signal core wire is located between the first signal core wire and the auxiliary power supply core wire group.

Further, the protective layer also comprises an insulating sheath layer arranged between the non-woven fabric layer and the heat-shrinkable layer.

Further, the insulating sheath layer is made for the TPE material and through extruding the mode cladding in outside the non-woven fabrics layer.

Further, the thickness of the heat-shrinkable layer is smaller than that of the insulating sheath layer.

Further, the heat-shrinkable layer is located on the outermost layer.

The utility model has the beneficial effects that: the non-woven fabric layer and the thermal shrinkage layer are coated outside the inner core with the main power supply core wire group and the signal core wire group to protect the inner core, so that the inner core is not easy to damage to influence the current transmission and signal transmission functions. The non-woven fabric layer has a moisture-proof effect, is soft in material and can be well attached to the inner core, and the gap between the inner core and the heat-shrinkable layer is filled to protect the inner core, so that the inner core is not easy to weaken the mutual combination of all core wires due to overlarge gap, and the stability of the structure of the inner core is not influenced; the pyrocondensation layer is used for the isolation protection inner core to have wear-resisting, resistant crooked characteristic, when charging cable used in the open air, charging cable was difficult because remove crooked and make pyrocondensation layer fracture, thereby improved charging cable's life, made the inner core be difficult for exposing in the external world and take place potential safety hazards such as electric leakage.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a cross-sectional view of a charging cable according to one embodiment;

fig. 2 is a cross-sectional view of the charging cable provided in the second embodiment.

The reference numbers illustrate:

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Example one

Referring to fig. 1, an embodiment of the present invention provides a charging cable 100, including an inner core 1 and a protective layer 2 coated outside the inner core 1, where the inner core 1 includes a main power core wire set 11 for transmitting a large current and a signal core wire set 12 for transmitting a signal, the protective layer 2 includes a non-woven fabric layer 21 and a heat-shrinkable layer 22, both the main power core wire set 11 and the signal core wire set 12 are coated in the non-woven fabric layer 21, the non-woven fabric layer 21 is coated with the heat-shrinkable layer 22, the heat-shrinkable layer 22 is a heat-shrinkable sleeve, and the heat-shrinkable sleeve is coated outside the non-woven fabric layer 21 in a heat-shrinkable manner, so that the processing is convenient, at this time, the heat-shrinkable layer 22 is located on an outermost layer, and the heat-shrinkable layer 22 is made of cross-linked polyethylene (XLPE). The non-woven fabric layer 21 has a moisture-proof effect, is soft in material and can be well attached to the inner core 1, and the gap between the inner core 1 and the heat-shrinkable layer 22 is filled to protect the inner core 1, so that the inner core 1 is not easy to weaken the mutual combination of core wires due to overlarge gap, and the stability of the structure of the inner core 1 is influenced; pyrocondensation layer 22 is used for isolation protection inner core 1 to have wear-resisting, resistant crooked characteristic, when charging cable 100 used in the open air, charging cable 100 was difficult because remove crooked and make pyrocondensation layer 22 fracture, thereby improves charging cable 100's life, makes inner core 1 be difficult for exposing in the external world and takes place potential safety hazards such as electric leakage. In addition, the thermal shrinkage layer 22 is located on the outermost layer, when being affected by outdoor environment, the thermal shrinkage layer 22 is affected first, and the thermal shrinkage layer 22 is not easy to bend and break under stress, so that the charging cable 100 is not easy to damage, thereby prolonging the service life of the charging cable 100

Referring to fig. 1, the core 1 further includes an auxiliary power core set 13 and a ground wire 14, wherein the main power core set 11, the signal core set 12, the auxiliary power core set 13, and the ground wire 14 are twisted into the core 1 and are covered by a non-woven fabric layer 21. The gap between the main power core wire set 11, the signal core wire set 12, the auxiliary power core wire set 13 and the ground wire 14 is filled with the filler 15, and the non-woven fabric layer 21 is further coated outside the filler 15 to further stabilize the structure of the inner core 1 and prevent the core wires from loosening.

Referring to fig. 1, the auxiliary power core line group 13 and the signal core line group 12 are located on the upper side of the main power core line group 11, and the ground line 14 is located on the lower side of the main power core line group 11, as viewed along a direction perpendicular to the cross section of the core 1.

Referring to fig. 1, the main power core wire set 11 includes a first main power core wire 111 and a second main power core wire 112 contacting with the first power core wire, where the first main power core wire 111 and the second main power core wire 112 both include a plurality of power core wires (not shown) and an insulating layer (not shown) covering the plurality of power core wires, in this embodiment, the first main power core wire 111 is a positive power core wire, and the second main power core wire 112 is a negative power core wire, in other embodiments, the first main power core wire 111 may be a negative power core wire, and the second main power core wire 112 is a positive power core wire, which is not limited herein.

Referring to fig. 1, the signal core wire set 12 includes a first signal core wire 121 and a second signal core wire 122 in contact with the first signal core wire 121, the first signal core wire 121 is in contact with the first main power core wire 111, the second signal core wire 122 is located between the first signal core wire 121 and the auxiliary power core wire set 13, the first signal core wire 121 includes a plurality of twisted first signal wires (not numbered), a shielding layer (not numbered) covering the plurality of first signal wires, and an inner insulating sheath layer (not numbered) covering the shielding layer, and the second signal core wire 122 includes a plurality of twisted second signal wires (not numbered), and a shielding layer (not numbered) covering the plurality of second signal wires.

Referring to fig. 1, the auxiliary power core line group 13 includes two auxiliary power core lines in contact with each other, and the second signal core line 122 is in contact with one of the auxiliary power core lines.

The processing method of charging cable 100 includes: step S1: filling filler 15 in gaps among the main power supply core wire group 11, the signal core wire group 12, the auxiliary power supply core wire group 13 and the ground wire 14, and then twisting the main power supply core wire group 11, the signal core wire group 12, the auxiliary power supply core wire group 13, the ground wire 14 and the filler 15 together into the inner core 1; step S2: wrapping non-woven fabric around the inner core 1 to form a non-woven fabric layer 21; step S3: a heat-shrinkable sleeve made of XLPE is sleeved outside the non-woven fabric layer 21 and heated to shrink to form a heat-shrinkable layer 22, and the heat-shrinkable layer 22 is located at the outermost layer and covers the outer surface of the non-woven fabric layer 21. Thereby processing to form charging cable 100.

Example two

Referring to fig. 2, the structure of the charging cable 100 of the present embodiment is similar to that of the first embodiment, except that: the protective layer 2 further comprises an insulating sheath layer 23 arranged between the non-woven fabric layer 21 and the thermal shrinkage layer 22, so that the protective layer 2 is further prevented from cracking, the protection of the inner core 1 is enhanced, and the structural strength of the charging cable 100 is enhanced. The insulating sheath layer 23 is made of TPE and is coated outside the non-woven fabric layer 21 in an extrusion manner. The thickness of the heat-shrinkable layer 22 is smaller than that of the insulating sheath layer 23.

In processing charging cable 100, the processing steps are similar to those of the embodiment, except that: after step S2 and before step S3, the outer surface of the non-woven fabric layer 21 is covered with the insulating sheath layer 23 by extrusion, and the heat-shrinkable sleeve is sleeved on the outer surface of the insulating sheath layer 23 to form the heat-shrinkable layer 22. Thereby processing to form charging cable 100.

The utility model is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the utility model is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a charging cable, includes the inner core and cladding in the outer inoxidizing coating of inner core, its characterized in that:

the inner core comprises a main power supply core wire group used for transmitting large current and a signal core wire group used for transmitting signals;

2. The charging cable according to claim 1, wherein: the thermal shrinkage layer is a thermal shrinkage sleeve, and the thermal shrinkage sleeve is coated outside the non-woven fabric layer in a thermal shrinkage mode.

3. The charging cable according to claim 1, wherein: the thermal shrinkage layer is made of a cross-linked polyethylene material.

4. The charging cable according to any one of claims 1 to 3, wherein: the inner core further comprises an auxiliary power supply core wire group and a ground wire, and the main power supply core wire group, the signal core wire group, the auxiliary power supply core wire group and the ground wire are stranded into the inner core and are wrapped by the non-woven fabric layer.

5. The charging cable according to claim 4, wherein: gaps among the main power supply core wire group, the signal core wire group, the auxiliary power supply core wire group and the ground wire are filled with fillers, and the non-woven fabric layer is further coated outside the fillers.

6. The charging cable according to claim 4, wherein: and viewed in the direction perpendicular to the section of the inner core, the auxiliary power supply core wire group and the signal core wire group are both positioned on the upper side of the main power supply core wire group, and the ground wire is positioned on the lower side of the main power supply core wire group.

7. The charging cable according to claim 4, wherein: the main power core wire group comprises a first main power core wire and a second main power core wire in contact with the first main power core wire, the signal core wire group comprises a first signal core wire and a second signal core wire in contact with the first signal core wire, the first signal core wire is in contact with the first main power core wire, and the second signal core wire is located between the first signal core wire and the auxiliary power core wire group.

8. The charging cable according to claim 1, wherein: the protective layer further comprises an insulating sheath layer arranged between the non-woven fabric layer and the heat-shrinkable layer.

9. The charging cable of claim 8, wherein: the insulating sheath layer is made for the TPE material and through extruding the mode cladding in outside the non-woven fabrics layer.

10. The charging cable of claim 8, wherein: the thickness of the thermal shrinkage layer is smaller than that of the insulating sheath layer.

11. The charging cable according to any one of claims 1-2, 8-10, wherein: the heat-shrinkable layer is positioned on the outermost layer.