CN210535378U

CN210535378U - Superfine bending-resistant Ethernet data line

Info

Publication number: CN210535378U
Application number: CN201921709300.1U
Authority: CN
Inventors: 李彬彬; 王德全; 陈磊; 冯森辉; 沈福良
Original assignee: Zhejiang Zhaolong Interconnection Technology Co ltd
Current assignee: Zhejiang Zhaolong Interconnection Technology Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-05-15
Anticipated expiration: 2029-10-12

Abstract

The utility model relates to a super fine resistant crooked ethernet data line, including sinle silk, shielding layer and outer jacket, the sinle silk includes conductor and the outer insulating layer of high temperature extrusion molding of conductor, conductor 1 is twisted by the single metal monofilament that diameter is less than or equal to 0.06mm of 19 at least, because the data line needs to have stronger resistant bending property, single conductor is too thick, can cause the compliance variation of cable, bending stress grow; the number of the conductors is too small, so that the softness is not facilitated, and the probability of wire breakage of the conductors is greatly increased; the bending service life of the cable can be greatly reduced. The utility model discloses satisfied the comprehensive requirement of robot inner space data line pair line footpath and bending property, superfine metal monofilament conductor is simultaneously selected, makes it the bending stress of per share metal monofilament reduce, under the bending radius condition of allowwing, is unlikely to take place elastic deformation, makes the insulating layer damage, has prolonged the life of data line.

Description

Superfine bending-resistant Ethernet data line

Technical Field

The utility model relates to an ethernet data line technical field, concretely relates to ultra-fine resistant crooked ethernet data line is applied to the data transmission of motion departments such as robot.

Background

With the rise of the internet of things, an ecosystem, cloud computing and big data of the internet of things are becoming core driving factors for the development of the robot industry. The mutual data transmission and processing among the inner parts of the robot, the inner parts of the robot and the terminal equipment are realized by the connection of Ethernet data cables.

Based on the long-term repeated actions of the robot movement mechanism, the narrow internal space and other reasons, the data cable for realizing signal transmission needs to have not only a smaller wire diameter but also superior bending resistance, as in the application of the invention in china: a high-performance robot arm cable CN 105390187A discloses that a copper wire bundle formed by stranding superfine copper wires with the diameter of 0.08-0.09mm is selected as a conductor, so that the cable has certain flexibility and meets the use condition that the robot arm cable needs to be bent frequently.

Although the diameter of the conductor in the patent is 0.08-0.09mm, the number of the conductors is more, so that the robot bending application condition can be met, but the conventional Ethernet data cable is a cable made of a single conductor structure or a 7-conductor structure.

Disclosure of Invention

Further requirement to line footpath and bending property in order to solve the ethernet data line of robot motion mechanism department data transmission the utility model provides an ethernet data line has had flexibility and bending resistance when reducing the line footpath simultaneously concurrently, accords with the requirement of the inside transmission cable of robot.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a superfine bending-resistant Ethernet data line comprises a wire core, a shielding layer and an outer protective layer, wherein the wire core comprises a conductor and an insulating layer extruded at high temperature outside the conductor, the conductor 1 is formed by stranding at least 19 metal monofilaments with the diameter of less than or equal to 0.06mm, and as the data line needs to have stronger bending-resistant performance, the single conductor is too thick, the softness of the cable is poor, and the bending stress is increased; the number of the conductors is too small, so that the softness is not facilitated, and the probability of wire breakage of the conductors is greatly increased; the bending service life of the cable can be greatly reduced. The utility model discloses the preferred adoption 19 single diameters of root are less than or equal to 0.06 mm's metal monofilament transposition forms the conductor, has satisfied the comprehensive requirement of robot inner space data line to line footpath and bending property, and superfine metal monofilament conductor selects simultaneously, makes it per share metal monofilament's bending stress reduce, under the bending radius condition of permission, is unlikely to take place elastic deformation, makes the insulating layer damage, has prolonged the life of data line.

Furthermore, four strands of the wire cores are symmetrically distributed and are star-twisted to form a cable, and the space design of the four groups of the wire cores in symmetrical arrangement shortens the distance between the wire cores to the maximum extent, reduces the outer diameter of the data line, and is convenient for fixing all the wire cores in a gathering arrangement mode. The symmetrical star quad structure can ensure stable transmission performance, such as characteristic impedance, attenuation, return loss and the like.

Furthermore, the shielding layer is formed by winding a plurality of metal monofilaments for shielding, the diameter of each metal monofilament is less than or equal to 0.1mm, and the metal monofilaments have excellent bending performance while the wire diameter is reduced.

Further, the insulating layer and the outer protective layer are made of fluoroplastics. Unlike PVC and PE plastics used for conventional data lines, the fluoroplastic has excellent electrical properties, low dielectric constant, high thermal stability, low flammability, low hygroscopicity, excellent weather resistance, excellent resistance to most chemicals, good heat resistance, wide temperature range of use, good mechanical properties, excellent non-adhesiveness and excellent stain resistance; the comprehensive properties enable the fluoroplastic insulated wire and cable to have excellent mechanical and physical properties and excellent electrical properties, and are particularly suitable for industrial equipment application. The fluoroplastic is a thermoplastic material, can be formed and processed by a common thermoplastic processing method, and has a simplified process. The thin fluoroplastic outer protective layer can be processed to obtain the data line with the small line diameter when the data line is applied to the robot signal transmission data line. In addition, the fluoroplastic has excellent elongation and elongation performance, so that the insulating layer and the outer protective layer made of the fluoroplastic are not easy to break or fracture when being bent and deformed. Meanwhile, the fluoroplastic has a low dielectric loss coefficient, so that the attenuation of signal transmission can be reduced, and the data transmission performance is improved.

Furthermore, the superfine metal monofilament is a plated copper conductor or an alloy conductor, and has good flexibility and bending resistance.

Compare conventional ethernet data line, the utility model has the characteristics of as follows:

by adopting the plating copper conductor or the alloy copper conductor with the diameter of 19 cores or more and less than 0.06mm, the formed data wire has small wire diameter and excellent bending performance, and is particularly suitable for the requirement of data transmission at a robot motion mechanism; the four-wire-core star-stranding cabling structure is stable, the wire core distance is effectively shortened, the wire diameter is further reduced, the flexibility is high, and the data transmission performance is excellent. The insulating layer and the outer protective layer of the fluoroplastic can greatly reduce the damage and fracture caused by bending deformation, and the oil stain resistance, the weather resistance and the chemical resistance of the fluoroplastic can meet the application requirements of severe industrial environments such as robots.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1 is a conductor, 2 is an insulating layer, 3 is a shielding layer, 4 is an outer sheath.

Detailed Description

For the related technical personnel to more clearly understand the technical scheme of the utility model, the utility model will now be described in further detail with reference to the attached drawings.

Example 1

As shown in fig. 1, a superfine resistant crooked ethernet data line, including sinle silk, shielding layer 3 and outer jacket 4, four groups sinle silk star twists the stranding, the sinle silk includes conductor 1 and conductor 1 outer high temperature extrusion molding's fluoroplastic insulating layer 2, conductor 1 is twisted by at least 19 single diameter less than or equal to 0.06 mm's metal monofilament and forms, many 0.1mm or less diameter's metal monofilament in the winding shielding in the cable core outside, outer jacket 4 prevents that the data line from damaging for fluoroplastics is located the outside of shielding layer, plays the effect of protection isolation.

The data line is obtained by processing the following steps: firstly, conductor stranding: 19 silver plated copper monofilaments of 0.06mm were twisted to form a 30AWG stranded conductor. The conductor formed by twisting the monofilaments can slide relatively in the moving process of the robot, so that the internal and external tensile force and pressure of the whole conductor are decomposed, the tensile strength is high, the conductor wire diameter is small, the conductor wire has high flexibility, a stable structure is still kept when the data wire is bent, and the plastic deformation is not easy to occur; secondly, core wire: FEP material having a thickness of about 0.16mm is extruded onto the outer layer of the conductor using high temperature extrusion equipment to form insulated single wire. Then, star stranding and cabling: and (3) twisting the 4 symmetrically arranged insulated single wires by using special cabling equipment to form a cabling cable core. Then, winding: 64 tinned copper monofilament conductors with the thickness of 0.08mm are wound on the outer layer of the cabling cable core by using special winding equipment to form a shielding winding semi-finished product wire, and the tinned copper monofilament with high bending strength is used as a shielding layer, so that an external magnetic field can be effectively shielded, and the stability of data transmission is ensured; finally, sheathing: and (3) extruding an FEP material with the thickness of about 0.27mm on the outer layer of the wound semi-finished product by using high-temperature extrusion equipment to finish the manufacture of the finished product wire.

The outer diameter of a finished CAT5E superfine bending-resistant Ethernet data line manufactured according to the above formula is 2.2mm, the data transmission requirement of a narrow space in a robot can be met, the experimental conditions of bending radius of 60mm, hanging weight of 100g, bending angle +/-90 and bending frequency of 60 times/minute are set, the bending resistance of the data line reaches more than 100 ten thousand times, and a robot motion mechanism can perform long-term and frequent bending motion.

Example two

In this embodiment, 19 highly flexible ultra-fine tin-plated copper monofilaments of 0.05mm were twisted to form a stranded conductor of 32 AWG. FEP material having a thickness of about 0.14mm was then extruded over the conductor using a high temperature extrusion apparatus to form insulated single wires. And then, twisting the 4 symmetrically arranged insulated single wires by using special cabling equipment to form a cabling cable core. Then, winding 80 0.05mm tin-plated copper monofilament conductors on the outer layer of the cabling cable core by using special winding equipment to form a shielding winding semi-finished product wire; and finally, extruding an FEP material with the thickness of about 0.30mm on the outer layer of the wound semi-finished product by using high-temperature extrusion equipment to finish the manufacture of the finished product wire.

The outer diameter of the data wire obtained by processing the 0.05mm high-flexibility superfine tin-plated copper conductor by the steps similar to those of the embodiment is 2.0mm, the bending resistance reaches more than 100 ten thousand times (test conditions are that the bending radius is 50mm, the hanging weight is 100g, the bending angle is +/-90 degrees, and the bending frequency is 60 times/minute), and the requirement of bending resistance is met while the wire diameter is smaller.

In order to verify that the data line of the present invention has excellent flexibility, bending resistance and environmental resistance, the data line manufactured in the first embodiment and the second embodiment is subjected to a performance test and compared with a common CAT5E cable on the market.

Table 1 is a table comparing the performance of the data cable manufactured in the first and second embodiments of the present invention with that of the conventional CAT5E cable. Referring to table 1, the inner conductor is formed by twisting 19-core or more coated copper conductors or alloy copper conductors with a diameter of less than 0.06mm into a wire core, the four-wire core is twisted into a cable core, a plurality of tin-plated copper monofilament conductors are wound outside the cable core to form a shielding layer, and finally, the outer layer is formed by extruding fluoroplastic at high temperature to complete the cabling process of the data line. Compared with the conventional CAT5E wire, the data wire prepared by the process has better flexibility and flexibility, can adapt to the industrial fields of minus 60 ℃ to plus 200 ℃, has greatly reduced wire diameter, is suitable for various fields needing bending resistance and long-term reciprocating movement, and particularly meets the requirement of data transmission at moving mechanisms such as robots.

Watch 1

What has been described above is merely a preferred embodiment of the present invention. It should be noted that, for a person skilled in the art, several modifications and variations can be made without departing from the principle of the invention, which is also considered as the protection scope of the invention.

Claims

1. The superfine bending-resistant Ethernet data line comprises a wire core, a shielding layer (3) and an outer protective layer (4), and is characterized in that the wire core comprises a conductor (1) and an insulating layer (2) extruded outside the conductor (1) at high temperature, and the conductor (1) is formed by stranding at least 19 metal monofilaments with the diameter of less than or equal to 0.06 mm.

2. The ultra-fine bending-resistant Ethernet data line of claim 1, wherein four groups of the line cores are star-twisted into a cable.

3. The ultra-fine bending-resistant Ethernet data line of claim 1 is characterized in that the shielding layer (3) is formed by winding and shielding a plurality of metal monofilaments, and the diameter of each metal monofilament is less than or equal to 0.1 mm.

4. The ultra-fine bending-resistant Ethernet data line of claim 1, wherein the insulating layer (2) and the outer sheath (4) are fluoroplastics.

5. The ultra fine bending resistant Ethernet data line of any one of claims 1 to 4, wherein the metal monofilament is a plated copper conductor or an alloy conductor.