CN212516625U

CN212516625U - Low inductance cable

Info

Publication number: CN212516625U
Application number: CN202021146662.7U
Authority: CN
Inventors: 朱华山; 李维开; 王开宇; 杨惠龙
Original assignee: Jiangsu Etern Electric Co ltd
Current assignee: Jiangsu Etern Electric Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-02-09
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses a low inductance cable, including the filling layer, the outer parcel in proper order of filling layer has inner conductor layer, inner insulating layer, outer conductor layer, outer insulating layer, shielding layer and outer jacket, wherein the filling layer is the platykurtic, and the cross-section of this cable is the rectangle structure. Through the change to the cable structure, continue to reduce inductance, make the influence of high frequency signal to the cable inside more weak.

Description

Low inductance cable

Technical Field

The utility model relates to a low inductance cable belongs to cable technical field.

Background

In the development of communication technology, 5G is more and more practical, and 5G communication base stations begin to be installed on a large scale. The supply cable requirements for new communication devices are also increasing. The inside of traditional circular power cable is two parallel circular conductors, and when high frequency signal passed through, higher alternating inductance can be produced to the cable is inside to influence communication signal's transmission.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a low inductance cable is provided, through the change to cable structure, continue to reduce the inductance, make high frequency signal more weak to the inside influence of cable.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a low inductance cable, includes the filling layer, the outer parcel in proper order of filling layer has inner conductor layer, inner insulation layer, outer conductor layer, outer insulation layer, shielding layer and outer jacket, wherein the filling layer is the platykurtic, and the cross-section of this cable is the rectangle structure.

The low inductance cable is characterized in that: and the outer surface of the shielding layer is wrapped with a Mylar aluminum foil layer.

The low inductance cable is characterized in that: the inner conductor layer is formed by weaving or winding a bare copper wire or a tinned copper wire, and the weaving or winding density is greater than 90%.

The low inductance cable is characterized in that: the outer parcel of inner conductor layer is for extruding type inner insulating layer, the inner insulating layer is low smoke and zero halogen material, the outer parcel of outer conductor layer is for extruding type outer insulating layer, the outer insulating layer is low smoke and zero halogen material, the outer jacket adopts low smoke and zero halogen material.

The low inductance cable is characterized in that: the outer conductor layer is formed by weaving or winding a bare copper wire or a tinned copper wire, the weaving or winding density is greater than 85%, and the cross section shape of the outer conductor layer is consistent with that of the inner conductor layer.

The low inductance cable is characterized in that: the shielding layer is formed by weaving bare copper wires or tinned copper wires, and the weaving density is greater than 85%.

The utility model has the advantages that:

1. the rectangular cable structure is adopted to increase the face-to-face area of the inner conductor and the outer conductor and relatively greatly increase the capacitance between the conductors, so that the inductance of the cable is greatly reduced, the cable has a better low-inductance characteristic and ensures the excellent signal transmission performance;

2. adopting a flat and long square cable form; the cable is easier to bend in the direction of the short edge, and the cable is convenient to lay.

Drawings

Fig. 1 is a schematic structural diagram of a low inductance cable according to the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, a low inductance cable includes a filling layer 1, an inner conductor layer 2, an inner insulation layer 3, an outer conductor layer 4, an outer insulation layer 5, a shielding layer 6 and an outer protection layer 7 are sequentially wrapped outside the filling layer 1, wherein the filling layer 1 is flat, and the cross section of the cable is rectangular.

By utilizing the rectangular cable structure, the face-to-face area of the inner conductor and the outer conductor is increased, and the capacitance between the conductors is relatively greatly increased, so that the inductance of the cable is greatly reduced, the cable has a more excellent low-inductance characteristic, and the excellent signal transmission performance is guaranteed; and adopts a flat and long square cable form; the cable is easier to bend in the direction of the short edge, and the cable is convenient to lay.

The surface of shielding layer 6 has mylar aluminium foil layer around the package, through mylar aluminium foil and shielding layer's contact, effectively improves shielding efficiency.

The inner conductor layer 2 is formed by weaving or winding a bare copper wire or a tinned copper wire, and the weaving or winding density is greater than 90%.

The conductor can be ensured to be flexible by adopting a weaving or winding process, and the good flexibility can be kept during laying and using. And the relative area of the inner conductor and the outer conductor is effectively increased by controlling the density.

The outer parcel of inner conductor layer 2 is for extruding type inner insulating layer 3, inner insulating layer 3 is low smoke and zero halogen material, the outer parcel of outer conductor layer 4 is for extruding type outer insulating layer 5, outer insulating layer 5 is low smoke and zero halogen material, outer jacket 7 adopts low smoke and zero halogen material. The low-smoke halogen-free material can select a proper temperature grade between 90 ℃ and 150 ℃ according to different use temperatures. The use of the low-smoke halogen-free material ensures that the cable does not generate harmful gas to human body when burning. The temperature range is different according to the rated temperature of the cable required by different use occasions and different cost.

The outer conductor layer 4 is formed by weaving or winding a bare copper wire or a tinned copper wire, the weaving or winding density is larger than 85%, and the cross section shape of the outer conductor layer 4 is consistent with that of the inner conductor layer 2.

The shielding layer 6 is formed by weaving bare copper wires or tinned copper wires, and the weaving density is more than 85%.

The weaving density is more than 85, so that the shielding efficiency is ensured, and a good shielding effect is provided.

To sum up, the utility model provides a pair of low inductance cable through the change to cable structure, continues to reduce the inductance, makes high frequency signal more weak to the inside influence of cable.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A low inductance cable, characterized by: including filling layer (1), filling layer (1) wraps up in proper order outward has inner conductor layer (2), inner insulation layer (3), outer conductor layer (4), outer insulation layer (5), shielding layer (6) and outer jacket (7), wherein filling layer (1) is the platykurtic, and the cross-section of this cable is the rectangle structure.

2. A low inductance cable according to claim 1, wherein: the outer surface of the shielding layer (6) is wrapped with a Mylar aluminum foil layer.

3. A low inductance cable according to claim 1, wherein: the inner conductor layer (2) is formed by weaving or winding a bare copper wire or a tinned copper wire, and the weaving or winding density is larger than 90%.

4. A low inductance cable according to claim 1, wherein: inner conductor layer (2) outer parcel be for extruding type inner insulating layer (3), inner insulating layer (3) are low smoke and zero halogen material, outer conductor layer (4) outer parcel be for extruding type outer insulating layer (5), outer insulating layer (5) are low smoke and zero halogen material, outer jacket (7) adopt low smoke and zero halogen material.

5. A low inductance cable according to claim 3, wherein: the outer conductor layer (4) is formed by weaving or winding a bare copper wire or a tinned copper wire, the weaving or winding density is larger than 85%, and the cross section shape of the outer conductor layer (4) is consistent with that of the inner conductor layer (2).

6. A low inductance cable according to claim 1, wherein: the shielding layer (6) is formed by weaving bare copper wires or tinned copper wires, and the weaving density is more than 85%.