CN106887283B

CN106887283B - Heat dissipation type charging cable

Info

Publication number: CN106887283B
Application number: CN201710203272.5A
Authority: CN
Inventors: 康树峰; 张强; 高承华; 薄强龙; 郑海梅
Original assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd; Changzhou Woer Heat Shrinkable Material Co Ltd; Shenzhen Woer New Energy Electric Technology Co Ltd
Current assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd; Changzhou Woer Heat Shrinkable Material Co Ltd
Priority date: 2017-03-30
Filing date: 2017-03-30
Publication date: 2023-07-07
Anticipated expiration: 2037-03-30
Also published as: CN106887283A

Abstract

The invention discloses a heat dissipation type charging cable which comprises a plurality of wires, an insulating bracket and an outer protective layer. A plurality of wires are respectively fixed on the insulating support. The wires and the insulating supports are coated in the outer protective layer, insulating heat conduction oil is filled among the wires, the insulating supports and the outer protective layer to form a heat dissipation insulating oil layer, and the wires are directly immersed in the insulating heat conduction oil. According to the heat dissipation type charging cable disclosed by the invention, the conducting wires are fixed by utilizing the insulating support, so that the conducting wires are directly immersed in insulating heat conduction oil, in the process of charging and using the cable, heat generated by the conducting wire core is transferred to the insulating heat conduction oil layer through the conducting wire insulating layer to be absorbed by the insulating heat conduction oil, and is rapidly dispersed into surrounding air through the outer protective layer, so that the temperature of the conductor can be rapidly reduced, the cable is kept in a lower-temperature working state, the service life of the cable is prolonged, in addition, filling is not used in the middle of the cable, the whole cable is easier to bend, and the use is more convenient.

Description

Heat dissipation type charging cable

Technical Field

The invention relates to a cable, in particular to a heat dissipation type charging cable.

Background

Along with the increase of people's awareness of environmental protection, electric vehicles are becoming popular, but the long charging time of electric vehicles restricts the popularization speed; the quick charging must require the cable to bear large current, but the charging cable can generate a large amount of heat after long-time large-current operation, and the current charging cable cannot effectively dissipate heat due to structural limitation, so that the aging of the cable is increased, the service life of the cable is shortened, breakdown and fire are caused even at high temperature, and great potential safety hazards are brought.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a scheme capable of rapidly, effectively and uniformly radiating, so that the problem of high temperature of a charging wire during rapid charging is effectively solved, and the service life and the safety coefficient of the charging wire are improved.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a heat dissipation type charging cable comprises a plurality of wires, an insulating support and an outer protective layer. The wires are respectively fixed on an insulating bracket. The wires and the insulating supports are coated in the outer protective layer, insulating heat conduction oil is filled among the wires, the insulating supports and the outer protective layer to form a heat dissipation insulating oil layer, and the wires are directly immersed in the insulating heat conduction oil.

Preferably, a plurality of slots are formed in the periphery of the insulating support, and the plurality of wires are respectively clamped in the corresponding slots.

Preferably, the outer sheath is an oil resistant outer sheath.

Preferably, the wire includes a main line including a main line core and a main line insulation layer, a ground line including a ground line core and a ground line insulation layer, an auxiliary line including an auxiliary line core and an auxiliary line insulation layer, and a signal line including a signal line core and a signal line insulation layer.

Preferably, at least one signal wire is arranged, and the signal wire is coated with a signal wire outer protective layer.

Preferably, insulating heat conduction oil is filled between the signal wire and the outer protective layer of the signal wire.

Preferably, the insulating support is hollow.

Preferably, the insulating support is an oil-resistant insulating support and has flexibility.

Preferably, the insulating support has a lower heat conductivity coefficient, and heat cannot be transferred to the cable through the insulating support, so that the heat cannot be accumulated in the cable, and the cable is easier to maintain a low-temperature working state.

Preferably, the wire core is a stranded wire core, and the stranded wire core is wrapped with a braided fabric.

Preferably, the braid is a polyester tape or oiled paper.

The signal wire insulating layer, the signal wire outer protective layer and the outer protective layer are all preferably made of oil-resistant materials.

As described above, the heat-dissipation type charging cable utilizes the insulating support to fix the wires, so that the wires are directly immersed in the insulating heat conduction oil, and in the process of charging and using the cable, heat generated by the wire core is transferred to the insulating heat conduction oil through the wire insulating layer to be absorbed by the insulating heat conduction oil, and rapidly diverges into the surrounding air through the outer protective layer, so that the temperature of the conductors can be rapidly reduced, the cable can be kept in a lower-temperature working state, the service life of the cable is prolonged, and in addition, the middle of the cable is not filled, so that the whole cable is easier to bend and more convenient to use.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of a charging cable of the present invention;

fig. 2 is a schematic cross-sectional view of the charging cable of fig. 1 at an inclined angle.

Detailed Description

The following describes embodiments of the present invention in detail. It should be emphasized that the following description is merely exemplary in nature and is in no way intended to limit the scope of the invention or its applications.

Referring to fig. 1 and 2, the heat dissipation type charging cable of the present invention includes a plurality of wires 10, an insulating support 20 and an outer sheath 30.

The insulating support 20 is substantially cylindrical, and the plurality of wires 10 are respectively fixed on the insulating support 20.

The wires 10 and the insulating support 20 are coated in the outer protective layer 30, insulating heat conduction oil is filled among the wires 10, the insulating support 20 and the outer protective layer 30 to form a heat dissipation insulating oil layer 40, and the wires 10 are directly immersed in the insulating heat conduction oil.

In this embodiment, the periphery of the insulating support 20 is provided with a plurality of slots 21, and a plurality of wires 10 are respectively clamped in the corresponding slots 21, so that the extrusion resistance or twisting resistance of the cable can be greatly enhanced.

In this embodiment, the insulating holder 20 is preferably hollow, having a central hole 22. The insulating support 20 preferably has arcuate edge slots 23.

In the present embodiment, the wire 10 includes a main line 11, a ground line 12, an auxiliary line 13, and a signal line 14. The main line 11 includes a main line 111 and a main line insulating layer 112. The ground wire 12 comprises a ground wire core 121 and a ground wire insulation layer 122. The auxiliary wire 13 includes an auxiliary wire core 131 and an auxiliary wire insulation layer 132. The signal line 14 includes a signal line core 141 and a signal line insulating layer 142.

Preferably, at least one signal wire 14 is arranged, and the signal wire 14 is coated with a signal wire outer protective layer 14c.

Preferably, insulating heat conducting oil is filled between the signal line insulating layer 142 and the signal line outer protective layer 14c. Of course, the signal line insulating layer 142 and the signal line outer protective layer 14c may not be filled or filled with other fillers.

Preferably, the insulating support 20 is hollow.

Preferably, the insulating support 20 is an oil resistant insulating support and has flexibility.

Preferably, the insulating support 20 has a low thermal conductivity, and heat is not transferred to the inside of the cable through the insulating support 20, so that heat is not accumulated in the cable, and the cable is more easily maintained in a low-temperature working state.

Preferably, the wire cores such as the main wire core 111, the ground wire core 121, the auxiliary wire core 131 and the signal wire core 141 are twisted wire cores, and the twisted wire cores are externally wrapped with a braided fabric. The braid is preferably a polyester tape or oiled paper.

The signal wire insulating layer 142, the signal wire outer sheath 14c, and the outer sheath 30 are preferably an oil-resistant signal wire insulating layer, an oil-resistant signal wire outer sheath, and an oil-resistant outer sheath, respectively.

Under the above structure, the heat generated by the conductor cores such as the main wire core 111, the ground wire core 121, the auxiliary wire core 131 and the signal wire core 141 can be quickly and uniformly absorbed by the insulating heat conducting oil; the gap between the wire 10 and the outer protective layer 30 is very small, so that heat can be rapidly dissipated through the outer protective layer 30; because all gaps in the cable are filled with insulating heat conduction oil, the heat dissipation efficiency and effect are greatly improved, and the cable is cooled rapidly.

In summary, the heat dissipation type charging cable of the invention uses the insulating bracket 20 to fix the conductive wire 10, so that the conductive wire 10 is directly immersed in the insulating heat conduction oil, and in the process of charging the cable, the heat generated by the conductive wire core such as the main wire core 111, the ground wire core 121, the auxiliary wire core 131 and the signal wire core 141 is absorbed by the insulating heat conduction oil, and rapidly diverges into the surrounding air through the outer protective layer 30, so that the temperature of the conductive wire core can be rapidly reduced, the cable can be kept in a lower temperature working state, the service life of the cable is prolonged, in addition, the middle of the cable is not filled, and the whole cable is easier to bend and more convenient to use.

The foregoing is a further detailed description of the invention in connection with specific/preferred embodiments, and it is not intended that the invention be limited to such description. It will be apparent to those skilled in the art that several alternatives or modifications can be made to the described embodiments without departing from the spirit of the invention, and these alternatives or modifications should be considered to be within the scope of the invention.

Claims

1. The utility model provides a heat dissipation type charging cable, includes a plurality of wires, insulating support and outer sheath, the wire includes wire core and cladding wire insulating layer outside the wire core, a plurality of wires are fixed in on the insulating support respectively, a plurality of wires and insulating support are by the cladding in the outer sheath, it forms the insulating oil reservoir of heat dissipation to fill between a plurality of wires, insulating support and the outer sheath to have insulating conduction oil, the wire is direct to immerse in the insulating conduction oil.

2. The heat dissipation type charging cable according to claim 1, wherein a plurality of slots are formed in the periphery of the insulating support, and the plurality of wires are respectively clamped in the corresponding slots.

3. The heat-dissipating charging cable of claim 1, wherein the outer jacket is an oil-resistant outer jacket.

4. The heat-dissipating charging cable of claim 1, wherein the conductive wire comprises a main wire, a ground wire, an auxiliary wire and a signal wire, the main wire comprising a main wire core and a main wire insulation layer, the ground wire comprising a ground wire core and a ground wire insulation layer, the auxiliary wire comprising an auxiliary wire core and an auxiliary wire insulation layer, the signal wire comprising a signal wire core and a signal wire insulation layer.

5. The heat dissipation type charging cable according to claim 4, wherein at least one signal wire is covered with a signal wire outer sheath.

6. The heat-dissipating charging cable of claim 5, wherein insulating heat-conducting oil is filled between the signal wire and the outer sheath of the signal wire.

7. The heat-dissipating charging cable of claim 1, wherein said insulating support is hollow.

8. The heat dissipating charging cable of claim 1, wherein said insulating support is an oil resistant insulating support and is flexible.

9. The heat-dissipating charging cable of claim 1, wherein the conductor core is a stranded core, and wherein the stranded core is wrapped with a braid.

10. The heat dissipating charging cable of claim 9, wherein said braid is polyester tape or oiled paper.