High-flame-retardant photoelectric composite wire

Abstract

The utility model relates to the technical field of photoelectric composite wires, in particular to a high-flame-retardant photoelectric composite wire, which comprises an optical fiber body, an outer cover, a first signal wire, a second signal wire, a third signal wire and a fourth signal wire, an auxiliary mechanism is arranged on the surface of the outer cover, a first insulating layer is arranged on the surface of the optical fiber body, and a second insulating layer is arranged on the surface of the fourth signal wire. A protective layer is arranged in an inner cavity of the outer cover, and the second signal line is an HEAC signal line. Through the cooperation of the optical fiber body, the first insulating layer, the braid layer, the aluminum foil layer and the aramid fiber filling layer, the low-frequency signal compatibility is improved, the optical fiber core uses OM3-150, the signal attenuation is small, the authentication distance is as long as 75FT, the actual use length reaches 300FT, the HEAC signal line conductor uses 23AWG, various parameters such as attenuation and SKEW meet the requirements of HDMI2.1 association, and the optical fiber core has the advantages of low frequency signal compatibility improvement, low-frequency signal compatibility improvement, low-frequency signal compatibility improvement, low-frequency signal compatibility improvement, low-frequency signal compatibility improvement, low-frequency signal compatibility improvement, low-frequency signal compatibility improvement and low-frequency signal compatibility improvement. The characteristic impedance can be controlled to be 100 + / -10 ohm, the photoelectric composite transmission line is woven by a tinned copper mesh, the shielding rate is more than 95%, and electromagnetic interference is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to photoelectric composite wire technical field, specifically is a kind of high flame-retardant photoelectric composite wire. BACKGROUND

[0002] At present, we all know the reason of electric wire fire,

[0003] First short circuit: the two wires of circuit touch each other, current does not pass through the electric equipment in line, and directly forms a loop. Since the resistance of electric wire itself is relatively small, if only through the loop of electric wire, current will increase sharply, several tens of times, several hundred times of normal situation. The current passing through the electric wire exceeds its safe load current, and the electric wire will heat. The more the excess is, the greater the heat is. When the heat makes the temperature of electric wire exceed the ignition point of insulating layer or sheath, the rubber or plastic insulating layer of electric wire will fire 2.

[0004] Second overload: when the amount of current passing through the wire exceeds the safe load current, the temperature of the wire continuously rises, which is called wire overload. When the wire is overloaded, the insulation of the wire is accelerated. When the wire is seriously overloaded, the temperature of the wire will continuously rise, and even the insulation of the wire will burn, and can ignite the combustible material near the wire, causing fire. Many current cables do not have the effect of flame retardation, and many fires are caused by electric wire fire. We need to solve the existing technical problems, and therefore we design a kind of high flame-retardant photoelectric composite wire. INVENTION CONTENT

[0005] The utility model discloses a kind of high flame-retardant photoelectric composite wire, with the advantage of being conducive to improving low-frequency signal compatibility, and the advantage of strong flame-retardant performance, solve the advantage of being conducive to improving low-frequency signal compatibility, and the problem of general flame-retardant performance.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of high flame-retardant photoelectric composite wire, including optical fiber body, outer covering, first signal line, second signal line, third signal line and fourth signal line, the surface of outer covering is provided with auxiliary mechanism, the surface of optical fiber body is provided with first insulating layer, the inner chamber of outer covering is provided with protective layer, the second signal line is HEAC signal line, the optical fiber body is OM3-150.

[0007] Preferably, the auxiliary mechanism includes an auxiliary groove, the auxiliary groove is formed on the surface of the outer covering, the right side of the outer covering is provided with a scale line, and the surface of the scale line is provided with a protective film.

[0008] Preferably, the number of auxiliary grooves is two, and the front and back sides of the protective film are fixedly connected with the outer covering.

[0009] Preferably, the protective layer comprises a braided layer, an inner cavity of the braided layer is provided with an aluminum foil layer, and an inner cavity of the aluminum foil layer is provided with an aramid filling layer.

[0010] Preferably, the aramid filling layer is arranged on a surface of the first insulating layer, and the braided layer is fixedly connected to an inner cavity of the outer covering.

[0011] Preferably, a ground wire is arranged on a right side of the inner cavity of the aluminum foil layer, and a surface of the ground wire is provided with a second insulating layer.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The utility model discloses a fiber body, first insulating layer, braided layer, aluminum foil layer and aramid filling layer cooperate, have the advantage that it is favorable to promote low frequency signal compatibility, and the fiber core uses OM3-150, and signal attenuation is small, and the authentication distance is as long as 75FT, and the actual use length reaches 300FT, and HEAC signal line conductor adopts 23AWG, and attenuation and SKEW wait for each item parameter satisfies HDMI2.1 association requirement, and characteristic impedance can control to 100+ / -10Ω, and the photoelectric composite transmission line adopts tinned copper mesh weaving, and shielding rate is 95% or more, and electromagnetic interference is effectively reduced.

[0014] 2、The utility model discloses a fiber body, outer covering, protective layer, braided layer and aluminum foil layer cooperate, have the advantage that the flame -retardant performance is stronger, and the first insulating layer uses FEP material, and outer covering material uses CMP level fire -retardant PVC material, and the braided layer adopts tinned copper mesh weaving, and electromagnetic interference is shielded while guaranteeing good flame -retardant property. ACCURACY OF DRAWINGS

[0015] Figure 1 It is the structure of the utility model sectional view schematic diagram;

[0016] Figure 2 It is the local structure schematic diagram of the utility model;

[0017] Figure 3 It is the local structure sectional view axial side schematic diagram of the utility model.

[0018] In the drawing: 1, fiber body;2, outer covering;3, first signal line;4, second signal line;5, third signal line;6, fourth signal line;7, auxiliary mechanism;8, first insulating layer;9, protective layer;10, auxiliary groove;11, scale line;12, protective film;13, braided layer;14, aluminum foil layer;15, aramid filling layer;16, ground wire. DETAILED DESCRIPTION

[0019] Please refer to Figures 1-3The utility model provides a kind of high flame-retardant photoelectric composite wire, including optical fiber body 1, outer 2, first signal line 3, second signal line 4, third signal line 5 and fourth signal line 6, the surface of outer 2 is provided with auxiliary mechanism 7, the surface of optical fiber body 1 is provided with first insulating layer 8, the material of first insulating layer 8 is FEP, the inner cavity of outer 2 is provided with protective layer 9, second signal line 4 is HEAC signal line, optical fiber body 1 is OM3-150, outer 2 uses CMP grade fireproof PVC material, second signal line 4 conductor uses 23AWG.

[0020] Please refer to Figure 3 Auxiliary mechanism 7 includes auxiliary groove 10, auxiliary groove 10 is opened in the surface of outer 2, by setting auxiliary groove 10, can play auxiliary positioning function when photoelectric composite wire is erected, facilitate to improve the stability of photoelectric composite wire, the right side of outer 2 is provided with scale line 11, by setting scale line 11, operator is convenient to understand the length of photoelectric composite wire, facilitate the process that photoelectric composite wire is connected, the surface of scale line 11 is provided with protective film 12.

[0021] Please refer to Figure 3 The number of auxiliary groove 10 is two, the front and back sides of protective film 12 are fixedly connected with outer 2, by setting protective film 12, the surface of scale line 11 can be protected, avoid scale line 11 to become not clear after rubbing.

[0022] Please refer to Figure 1 And Figure 2 Protective layer 9 includes braided layer 13, braided layer 13 is woven with tinned copper mesh, shielding rate is more than 95%, effectively reduces electromagnetic interference, improves flame retardance simultaneously, the inner cavity of braided layer 13 is provided with aluminum foil layer 14, by setting aluminum foil layer 14, not only can the optical fiber be protected, but also the shielding performance of cable can be improved, to improve the anti-interference performance of cable, the inner cavity of aluminum foil layer 14 is provided with aramid filling layer 15, the material of aramid filling layer 15 is aramid, by setting aramid filling layer 15, composite wire can be more wear-resistant, and the anti-pulling performance is improved.

[0023] Please refer to Figure 1 And Figure 2 Aramid filling layer 15 is arranged on the surface of first insulating layer 8, braided layer 13 is fixedly connected in the inner cavity of outer 2, by setting braided layer 13, shielding effect can be played, electromagnetic interference is effectively reduced, it is favorable to the transmission of low-frequency signal, and good flame retardance is guaranteed.

[0024] Please refer to Figure 1 And Figure 2 The right side of the inner cavity of aluminum foil layer 14 is provided with ground wire 16, the surface of ground wire 16 is provided with second insulating layer, by setting first insulating layer 8 and second insulating layer, the safety of photoelectric composite wire can be increased, and discharge effect is improved.

[0025] In use, the first insulating layer 8 is tightened and wrapped on the surface of the optical fiber body 1, and the second insulating layer is tightened and wrapped on the surface of the ground wire 16, the first insulating layer 8 and the second insulating layer can form a protective layer 9 around the optical fiber body 1 and the ground wire 16, increase the safety of the optical and electrical composite wire, and the optical fiber body 1 after wrapping, the first signal wire 3, the second signal wire 4, the third signal wire 5, the fourth signal wire 6, the ground wire 16 and the aramid filling layer 15 are twisted in a certain direction and rule, and the cable surface after twisting is wrapped with an aluminum foil layer 14 and a braided layer 13 in turn, and finally the outer sheath 2 is added on the surface of the braided layer 13, so as to form a complete optical and electrical composite wire, all materials in the utility model are high-flame-retardant materials, the core wire insulation uses FEP material, which improves the flame retardance and increases the heat resistance, the outer sheath 2 uses CMP-grade fireproof PVC material, which protects the core wire, the optical fiber body 1 uses OM3-150, the signal attenuation is small, the attenuation value reaches ≤3.5dB / km@850nm and ≤1.5dB / km@1300nm, meets the HDMI2.1 association certification, the certification distance is as long as 75FT, the actual use length is 300FT, the second signal wire 4 conductor adopts 23AWG, the attenuation and SKEW parameters meet the requirements of the HDMI2.1 association, the characteristic impedance can be controlled to 100+ / -10Ω, and 8K / 120Hz or 16K / 60Hz audio and video transmission is supported, the capacity resistance between low-band signal wires is reduced, the low-frequency signal wire compatibility is good, and the occurrence of many old devices not supporting or even not displaying is avoided, the braided layer 13 adopts tin-plated copper mesh, the shielding rate is more than 95%, electromagnetic interference is effectively reduced, and good flame retardance is ensured, the flame retardance grade of the optical and electrical composite wire can not only meet horizontal combustion or conventional vertical combustion, but also meet the composite requirements in some ventilation channels, high-rise buildings, indoor home decoration and various vertical shaft channels, when erecting, the auxiliary groove 10 on the surface of the outer sheath 2 is erected on the fixed frame, since the auxiliary groove 10 is symmetrically arranged on the surface of the outer sheath 2, the cable erection is stable, and the signal transmission is not affected, the scale line 11 can conveniently enable the operator to know the length of the optical and electrical composite wire, and is beneficial to the connection and erection process of the optical and electrical composite wire.

[0026] In summary: the high-flame-retardant optical and electrical composite wire solves the problems that the general optical and electrical composite wire does not have the advantage of improving low-frequency signal compatibility and the flame retardance is general through the cooperation of the optical fiber body 1, the first insulating layer 8, the braided layer 13, the aluminum foil layer 14, the aramid filling layer 15, the outer sheath 2 and the protective layer 9.

Claims

1. A high flame-retardant optoelectronic composite line, comprising an optical fiber body (1), an outer sheath (2), a first signal line (3), a second signal line (4), a third signal line (5), and a fourth signal line (6), characterized in that: The outer sheath (2) is provided with an auxiliary mechanism (7), the surface of the optical fiber body (1) is provided with a first insulating layer (8), the inner cavity of the outer sheath (2) is provided with a protective layer (9), the second signal line (4) is a HEAC signal line, and the optical fiber body (1) is OM3-150. The protective layer (9) includes a braided layer (13), the inner cavity of which is provided with an aluminum foil layer (14), and the inner cavity of which is provided with an aramid filling layer (15).

2. The high flame-retardant optoelectronic composite line according to claim 1, characterized in that: The auxiliary mechanism (7) includes an auxiliary groove (10), which is opened on the surface of the outer cover (2). A scale line (11) is provided on the right side of the outer cover (2), and a protective film (12) is provided on the surface of the scale line (11).

3. The high flame-retardant optoelectronic composite line according to claim 2, characterized in that: The number of auxiliary grooves (10) is two, and the front and rear sides of the protective film (12) are fixedly connected to the outer cover (2).

4. The high flame-retardant optoelectronic composite line according to claim 1, characterized in that: The aramid filling layer (15) is disposed on the surface of the first insulating layer (8), and the braided layer (13) is fixedly connected to the inner cavity of the outer sheath (2).

5. The high flame-retardant optoelectronic composite line according to claim 1, characterized in that: A ground wire (16) is provided on the right side of the inner cavity of the aluminum foil layer (14), and a second insulating layer is provided on the surface of the ground wire (16).

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