CN210296020U

CN210296020U - Flexible cable suitable for high-voltage device

Info

Publication number: CN210296020U
Application number: CN201921721533.3U
Authority: CN
Inventors: 张亚闪; 王维亚; 徐颖; 刘述权; 刘欢
Original assignee: Kunshan Spectrum Electronic Technology Co ltd
Current assignee: Kunshan Spectrum Electronic Technology Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-04-10
Anticipated expiration: 2029-10-15

Abstract

The utility model relates to a flexible cable suitable for high pressure device, including flexible inner core, flexible inner core encircles outward and distributes and has a plurality of conductor assembly, constitutes the inner core ring, and the outer parcel of inner core ring has the first around the covering, and the first parcel has first weaving layer around the covering, and the outer parcel of first weaving layer has the second around the covering, and the second has the second weaving layer around the outer parcel of covering, and the outer parcel of second weaving layer has the third around the covering, and the third has outer sheath around the outer parcel of covering. Therefore, the conductor assemblies are matched with the filling ropes, certain strength is guaranteed under the condition that the cable is soft, and the cable is not easy to oxidize at the temperature of-55-200 ℃ on trial. The insulating layer is independent, so that the temperature resistance level is high, the voltage resistance level is also high, and the requirement of 20000V direct current high voltage can be met. The shielding layer is arranged, so that the electromagnetic compatibility of the cable is improved under the condition of ensuring the flexibility of the cable. The outer layer sheath is arranged, so that better flexibility is kept under the condition of meeting high temperature resistance.

Description

Flexible cable suitable for high-voltage device

Technical Field

The utility model relates to a cable especially relates to a flexible cable suitable for high tension apparatus.

Background

In some situations where voltage levels are very high, overvoltage protection for high voltage devices becomes a very important option. Some high-voltage traveling wave tubes and electronic tubes have voltages as high as 20000V, and such high voltages have great influence on electronic circuits of equipment, and are fatal to the equipment in case of voltage overload. It is currently relatively reliable to install overvoltage protectors in these high-voltage devices, but due to the space constraints of the added location, very high requirements are placed on the cables: generally, a cable is required to have a multi-core structure, a single core also needs to be capable of bearing very high voltage, shielding interference is well protected, more importantly, the cable is required to be super-flexible, and the cable may need to be bent in a space of 10 mm.

A flexible high-voltage cable (CN201927385U) suitable for machines such as excavator is introduced in the prior art. It includes the cable core that three at least sinle silks are constituteed, and every sinle silk includes insulating layer, the shielding layer that conductor and conductor set gradually outward, and the cable core is equipped with around the covering outward, is the polypropylene around the covering, is equipped with the armor around the covering outward, and this armor is the network structure that the steel wire was woven, is equipped with total insulating layer outside the armor, and this total insulating layer is thermoplasticity vulcanized rubber insulating layer, is equipped with the restrictive coating outside the total insulating layer. However, the structure of the device has defects, and the device cannot meet the requirement of bending in a space of 10mm when being applied, and cannot realize normal work of-55 to 200. Simultaneously, its insulating layer, around the covering structure singleness, the shielding effect is poor, sees electromagnetic compatibility effect to 20000V's service environment and does not exist almost.

In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create a flexible cable suitable for high voltage devices, so that the flexible cable has industrial value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a flexible cable suitable for high tension apparatus.

The utility model discloses a flexible cable suitable for high pressure device, including flexible inner core, wherein: the flexible inner core is surrounded and distributed with a plurality of conductor components outward, constitutes the inner core ring, the outer parcel of inner core ring has first around the covering, the outer parcel of first around the covering has first weaving layer, the outer parcel of first weaving layer has the second around the covering, the outer parcel of second around the covering has the second weaving layer, the outer parcel of second weaving layer has the third around the covering, the outer parcel of third around the covering has outer sheath.

Further, the above flexible cable for high voltage devices, wherein the conductor assembly is formed by winding ten conductors.

Furthermore, the flexible cable suitable for the high-voltage device is characterized in that the flexible inner core is a filling rope, and the filling rope is formed by winding and weaving tetrafluoroethylene strips.

Further, the flexible cable suitable for a high voltage device as described above, wherein the conductor assembly includes a plurality of conductor cores, the conductor cores are wrapped by insulating layers, the conductor cores are silver-plated copper conductors, the diameter of the silver-plated copper conductors is 0.05 to 0.15 mm, the insulating layers are crosslinked fluororesin layers, and the thickness of the crosslinked fluororesin layers is 0.5 to 1.5 mm.

Further, the flexible cable for a high voltage device as described above, wherein the diameter of the silver-plated copper conductor is 0.1 mm, and the thickness of the crosslinked fluororesin layer is 1 mm.

Furthermore, the flexible cable suitable for the high-voltage device is characterized in that the first, second and third wrapping layers are formed by weaving tetrafluoroethylene foaming tapes, and the thicknesses of the first, second and third wrapping layers are 0.05-1 mm.

Further, the flexible cable suitable for the high-voltage device is described above, wherein the first braided layer and the second braided layer are silver-plated copper wire braided layers, and the thickness of each silver-plated copper wire braided layer is 0.1 to 1.5 mm.

Further, the flexible cable suitable for a high voltage device is described above, wherein the outer sheath is a braided layer of tetrafluoroethylene filaments, and the thickness of the braided layer of tetrafluoroethylene filaments is 1 to 2 mm.

Still further, the flexible cable suitable for a high voltage device as described above, wherein the braided layer of tetrafluoroethylene filaments has a thickness of 1.5 mm.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

1. a plurality of conductor components are matched with the filling ropes, so that certain strength is ensured under the condition that the cable is soft, and the cable is not easy to oxidize at the temperature of-55-200 ℃ on trial.

2. The insulating layer is independent, so that the temperature resistance level is high, the voltage resistance level is also high, and the requirement of 20000V direct current high voltage can be met.

3. The shielding layer is arranged, so that the electromagnetic compatibility of the cable is improved under the condition of ensuring the flexibility of the cable.

4. The outer layer sheath is arranged, so that better flexibility is kept under the condition of meeting high temperature resistance.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic view of a flexible cable suitable for use in a high voltage device.

The meanings of the reference symbols in the drawings are as follows.

1 flexible inner core 2 first wrapping layer

3 first braided layer 4 second around covering

5 second braided layer 6 third lapping layer

7 outer sheath 8 conductor core material

9 insulating layer

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The flexible cable suitable for high voltage devices, as shown in fig. 1, comprises a flexible inner core 1, which is distinguished in that: a plurality of conductor components are distributed around the flexible inner core 1 to form an inner core ring, and a first wrapping layer 2 is wrapped outside the inner core ring. Meanwhile, in order to realize the shielding effect of the cable, the cable has proper flexibility (bending radius of 10mm), and a composite layered structure is adopted. Particularly, first weaving layer 3 has been wrapped around the outer parcel of covering 2, and the outer parcel of first weaving layer 3 has the second around covering 4, and the second has second weaving layer 5 around the outer parcel of covering 4, and the outer parcel of second weaving layer 5 has the third around covering 6. Finally, an outer layer sheath 7 wraps the third wrapping layer 6, and isolation protection with the external environment is achieved.

In view of the above, the present invention provides a portable electronic device, which is capable of preventing the overvoltage protection device from being damaged by the overvoltage, and which is capable of preventing the overvoltage protection device from being damaged by the overvoltage. And simultaneously, the utility model discloses the flexible inner core 1 of chooseing for use is the filling rope, and the filling rope is tetrafluoroethylene (PTFE) strip, and the winding is worked out through the foaming process after handling and is constituted. Therefore, the flexible cable has better flexibility, and is convenient for the conductor assembly to be distributed around with proper supporting effect.

Furthermore, considering the daily conduction requirement of the overvoltage protection device below 20000V dc, the conductor assembly comprises a plurality of conductor cores 8, and the conductor cores 8 are wrapped by insulating layers 9. Specifically, the conductor core material 8 is a silver-plated copper conductor having a diameter of 0.05 to 0.15 mm, and the insulating layer 9 is a crosslinked fluororesin layer having a thickness of 0.5 to 1.5 mm. Meanwhile, in terms of normal use requirements, the diameter of the silver-plated copper conductor is 0.1 mm, and the thickness of the crosslinked fluorine resin layer is 1 mm, so that the silver-plated copper conductor can meet the requirements of conventional use.

Simultaneously, in order to play suitable interval, first wind covering 2, second around covering 4, third around covering 6 for the tetrafluoroethylene foaming area weave constitute, first wind covering 2, second around covering 4, the third around the thickness of covering 6 be 0.05 to 1 millimeter. And, first weaving layer 3, second weaving layer 5 are silver-plated copper wire weaving layer, and the thickness of silver-plated copper wire weaving layer is 0.1 to 1.5 millimeters.

Still further, in order to have a better wear-resistant protection effect and realize complete isolation from the external environment, the inner conductor assembly is protected, the outer sheath 7 is a tetrafluoroethylene yarn braided layer, and the thickness of the tetrafluoroethylene yarn braided layer is 1 to 2 millimeters. The self-lubricity, hydrophobicity, temperature resistance and weather resistance of the polytetrafluoroethylene ensure that the cable can be used in various severe environments. Certainly, in the conventional use environment at present, the thickness of the tetrafluoroethylene filament braided layer is only 1.5 millimeters, and the temperature resistance range can be met, namely, the temperature resistance range is-55-200 ℃.

Through foretell expression of characters and combination of the attached drawing can be seen, adopt the utility model discloses afterwards, possess following advantage:

Furthermore, the indication directions or positional relationships described in the present invention are directions or positional relationships based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated device or structure must have a specific direction or operate in a specific directional configuration, and therefore, should not be construed as limiting the present invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. Flexible cable suitable for high tension device, including flexible inner core, its characterized in that: the flexible inner core is surrounded and distributed with a plurality of conductor components outward, constitutes the inner core ring, the outer parcel of inner core ring has first around the covering, the outer parcel of first around the covering has first weaving layer, the outer parcel of first weaving layer has the second around the covering, the outer parcel of second around the covering has the second weaving layer, the outer parcel of second weaving layer has the third around the covering, the outer parcel of third around the covering has outer sheath.

2. The flexible cable adapted for use in a high voltage apparatus according to claim 1, wherein: the conductor assembly is formed by winding ten conductors into a cable.

3. The flexible cable adapted for use in a high voltage apparatus according to claim 1, wherein: the flexible inner core is a filling rope which is formed by winding and weaving tetrafluoroethylene strips.

4. The flexible cable adapted for use in a high voltage apparatus according to claim 1, wherein: the conductor assembly comprises a plurality of conductor core materials, insulating layers wrap the conductor core materials, the conductor core materials are silver-plated copper conductors, the diameter of each silver-plated copper conductor is 0.05-0.15 mm, the insulating layers are cross-linked fluororesin layers, and the thickness of each cross-linked fluororesin layer is 0.5-1.5 mm.

5. The flexible cable adapted for use in a high voltage apparatus according to claim 4, wherein: the diameter of the silver-plated copper conductor is 0.1 mm, and the thickness of the cross-linked fluorine resin layer is 1 mm.

6. The flexible cable adapted for use in a high voltage apparatus according to claim 1, wherein: first around covering, second around covering, third around the covering for the tetrafluoroethylene foaming area weave constitute, first around covering, second around the covering, the third around the thickness of covering be 0.05 to 1 millimeter.

7. The flexible cable adapted for use in a high voltage apparatus according to claim 1, wherein: the first woven layer and the second woven layer are silver-plated copper wire woven layers, and the thickness of each silver-plated copper wire woven layer is 0.1-1.5 mm.

8. The flexible cable adapted for use in a high voltage apparatus according to claim 1, wherein: the outer sheath is a tetrafluoroethylene silk braid, and the thickness of the tetrafluoroethylene silk braid is 1-2 millimeters.

9. The flexible cable adapted for use in a high voltage apparatus according to claim 8, wherein: the thickness of the tetrafluoroethylene silk weaving layer is 1.5 millimeters.