CN220065259U

CN220065259U - Easily crimping type stretch-proof communication cable

Info

Publication number: CN220065259U
Application number: CN202321327325.1U
Authority: CN
Inventors: 江平; 黄建卫; 蔡长威; 刘书鑫
Original assignee: Zhejiang Zhongda Yuantong Cable Technology Co ltd
Current assignee: Zhejiang Zhongda Yuantong Cable Technology Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-11-21
Anticipated expiration: 2033-05-29

Abstract

The utility model discloses an easy-crimping type stretch-resistant communication cable, which comprises a stretch-resistant inner core formed by twisting a plurality of aramid fibers and stainless steel wires, wherein the outer diameter of the stretch-resistant inner core is not more than 0.5mm, a ferrite film wrapping layer is wrapped outside the stretch-resistant inner core, a plurality of oxygen-free copper wires are spirally wrapped outside the ferrite film wrapping layer to form an inner conductor layer, the outer surface of the inner conductor layer is electroplated to form a permalloy layer, and a fluororesin extrusion outer sheath layer is wrapped outside the permalloy layer. The communication cable is better in flexibility, high in tensile strength and easy to crimp and install, can be firmly connected with the binding post in a press-fitting mode, and ensures the reliability of electric connection.

Description

Easily crimping type stretch-proof communication cable

Technical Field

The utility model relates to the technical field of cables, in particular to an easily-crimped stretch-resistant communication cable.

Background

When the terminal of the communication equipment cable needs to be connected, the terminal needs to be applied to, and when the communication cable is installed in a crimping way with the terminal, the contact area between the terminal and a cable wire is not enough easily caused by improper operation, the connection is not firm, the electric connectivity is poor, and faults are easy to cause.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the anti-stretching communication cable which is easy to press, has better flexibility and high tensile strength, is easy to press and install, can ensure firm press-fit connection with the wiring terminal and ensures the reliability of electric connection.

The utility model solves the technical problems through the following technical proposal.

The utility model provides an easy crimping formula stretch-proofing communication cable, includes by a plurality of aramid fiber and stainless steel transposition constitution stretch-proofing inner core, stretch-proofing inner core external diameter is not more than 0.5mm, stretch-proofing inner core outside cladding has ferrite film around the covering, and a plurality of oxygen-free copper wires are encircleed around ferrite film is around the outside spiral winding of covering and is formed the inner conductor layer, the electroplating of inner conductor layer surface forms the permalloy layer, the outside cladding of permalloy layer has the crowded package oversheath layer of fluorine resin.

Preferably, the stainless steel wire has a diameter of 0.01mm to 0.02mm.

Preferably, the ferrite film wrapping layer has a thickness of 5 μm to 8 μm.

Preferably, the ferrite film wrapping layer is a ferrite film tape unidirectional spiral lapping and wrapping structure, and the wrapping direction is opposite to the stretch-resistant inner core.

Preferably, the diameter of the oxygen-free copper wire is 0.1mm to 0.15mm, and the pitches are 30mm to 50mm.

Preferably, the permalloy layer thickness is 20 μm to 45 μm.

Preferably, the permalloy layer is externally coated with a thermally conductive silicone grease layer.

Preferably, the thermally conductive silicone grease layer has a thickness of 3 μm to 6 μm.

Preferably, the stretch resistant core is twisted in the same direction as the oxygen free copper wire.

Preferably, the thickness of the fluororesin extrusion coating outer sheath layer is 0.3mm to 0.9mm.

The utility model has the beneficial effects that:

1. the aramid fiber and the stainless steel wire are twisted to form the stretch-resistant inner core, so that the stretch-resistant inner core is better in flexibility and higher in stretch-resistant strength, load stress applied to the inner conductor layer can be effectively relieved, local stress concentration of the inner conductor layer is reduced, deformation and wire breakage of the oxygen-free copper wire are reduced, the outer wrapping ferrite film is wound on the cladding layer, dislocation mixing of the oxygen-free copper wire into the inner core can be effectively prevented, lateral pressure of the inner conductor layer during bending of a cable is better borne, bending resistance is enhanced, the inner conductor layer is higher in tensile strength and pressing strength, press-connection and installation are easy, press-connection with a wiring terminal are firm, and good electrical performance is guaranteed.

2. The permalloy layer is formed on the outer surface of the inner conductor layer formed by spiral winding of the oxygen-free copper wires through electroplating, the diameter of the oxygen-free copper wires is reasonably designed, and the thickness of the permalloy layer is optimized, so that the oxygen-free copper wires are tightly combined into a whole without loosening, the tension strength and the compression strength are higher, the press-fit connection with the wiring terminal is firm, and the reliability of the electrical characteristics is improved.

3. The heat conduction silicone grease layer is coated outside the permalloy layer, so that heat under the working state of the cable is timely dissipated, the thermal expansion effect is reduced, and the durability is improved.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model.

In the figure: 1-stretch-resistant core, 2-ferrite film wrapping layer, 3-oxygen-free copper wire, 4-inner conductor layer, 5-permalloy layer, 6-fluororesin extrusion coating outer sheath layer and 7-heat conduction silicone grease layer.

Description of the embodiments

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1, the easy-to-crimp stretch-resistant communication cable of the embodiment of the utility model comprises a stretch-resistant inner core 1 formed by twisting a plurality of aramid fibers and stainless steel wires, wherein the diameter of each stainless steel wire is 0.01mm to 0.02mm. The outer diameter of the stretch-proof inner core 1 is not more than 0.5mm. The outer part of the stretch-proofing inner core 1 is coated with a ferrite film wrapping layer 2, specifically, the ferrite film wrapping layer 2 is a ferrite film with a unidirectional spiral lapping wrapping structure, and the wrapping direction is opposite to the twisting direction of the stretch-proofing inner core 1. The ferrite film wrapping layer 2 has a thickness of 5 μm to 8 μm. A plurality of oxygen-free copper wires 3 are spirally wound around the ferrite film around the outer portion of the cladding 2 to form an inner conductor layer 4, specifically, the diameter of the oxygen-free copper wires 3 is 0.1mm to 0.15mm, and the pitches are 30mm to 50mm. The twisting direction of the stretch-proof inner core 1 is the same as the winding direction of the oxygen-free copper wire 3. The outer surface of the inner conductor layer 2 is electroplated to form a permalloy layer 5, and the thickness of the permalloy layer 5 is 20-45 mu m. Further, the permalloy layer 5 is externally coated with a heat-conducting silicone grease layer 7, and the thickness of the heat-conducting silicone grease layer 7 is 3-6 μm. The outer part of the permalloy layer 5 is coated with a fluororesin extrusion outer sheath layer 6. The thickness of the fluororesin extrusion outer sheath layer 6 is 0.3mm to 0.9mm.

The present utility model has been described in terms of embodiments, and it will be appreciated by those of skill in the art that various changes can be made to the features and embodiments, or equivalents can be substituted, without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. An easy crimping type stretch-proofing communication cable, characterized by: including constitute stretch-proofing inner core (1) by a plurality of aramid fiber and stainless steel wire transposition, stretch-proofing inner core (1) external diameter is not more than 0.5mm, stretch-proofing inner core (1) outside cladding has ferrite film around covering (2), and a plurality of oxygen-free copper wires (3) are around ferrite film is around the outside spiral winding of covering (2) forms inner conductor layer (4), inner conductor layer (4) surface electroplate and form permalloy layer (5), permalloy layer (5) outside cladding has fluororesin crowded package oversheath layer (6).

2. The easy-to-crimp stretch-resistant communications cable of claim 1, wherein: the stainless steel wire has a diameter of 0.01mm to 0.02mm.

3. The easy-to-crimp stretch-resistant communications cable of claim 1, wherein: the thickness of the ferrite film wrapping layer (2) is 5-8 mu m.

4. The easy-to-crimp stretch-resistant communications cable of claim 1, wherein: the ferrite film wrapping layer (2) is of a ferrite film belt unidirectional spiral lapping and wrapping structure, and the wrapping direction is opposite to the twisting direction of the stretch-resistant inner core (1).

5. The easy-to-crimp stretch-resistant communications cable of claim 1, wherein: the diameter of the oxygen-free copper wire (3) is 0.1mm to 0.15mm, and the pitches are 30mm to 50mm.

6. The easy-to-crimp stretch-resistant communications cable of claim 1, wherein: the permalloy layer (5) has a thickness of 20 μm to 45 μm.

7. The easy-to-crimp stretch-resistant communications cable of claim 1, wherein: the permalloy layer (5) is externally coated with a heat-conducting silicone grease layer (7).

8. The easy-to-crimp, stretch-resistant communications cable of claim 7, wherein: the thickness of the heat-conducting silicone grease layer (7) is 3-6 mu m.

9. The easy-to-crimp stretch-resistant communications cable of claim 1, wherein: the twisting direction of the stretch-proof inner core (1) is the same as the winding direction of the oxygen-free copper wire (3).

10. The easy-to-crimp stretch-resistant communications cable of claim 1, wherein: the thickness of the fluororesin extrusion outer sheath layer (6) is 0.3mm to 0.9mm.