Compression-resistant USB photoelectric composite wire

Abstract

The utility model relates to the technical field of cables, in particular to a compression-resistant USB photoelectric composite wire, which comprises a four-core multimode optical fiber, four signal wires and a control wire, the four signal wires and the control wire are arranged on the periphery of the four-core multimode optical fiber, a wrapping tape is jointly extruded outside the four signal wires and the control wire, a special-shaped filling strip is arranged in the wrapping tape, and the special-shaped filling strip is arranged in the control wire. The special-shaped filling strip comprises a circular pipe strip which sleeves the four-core multimode optical fiber, five compression-resistant straight strips which are integrally formed on the outer wall of the circular pipe strip and are annularly arranged at intervals, and arc-shaped strips which are integrally formed on the compression-resistant straight strips, are far away from the end face of the circular pipe strip and abut against the inner wall of the wrapping tape. And lightening holes which extend along the radial direction of the four-core multimode optical fiber and are through front and back are formed in the compression-resistant straight strips. According to the utility model, the four-core multimode optical fiber, the signal line and the control line are separated by the special-shaped filling strips, so that the four-core multimode optical fiber, the signal line and the control line are mutually independent, and the special-shaped filling strips serve as inner skeletons of the composite line to ensure that the composite line has good roundness.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field, concretely is a kind of compression-resistant USB photoelectric composite wire. BACKGROUND

[0002] Photoelectric composite wire integrates the function of optical fiber and cable, can transmit optical signal and electrical signal simultaneously.The utility model discloses a kind of anti-interference USB photoelectric composite wire, four-core multimode optical fiber is not located at the axis of composite wire in the utility model, when the part close to four-core multimode optical fiber on photoelectric composite wire is extruded, extrusion force is easy to cause four-core multimode optical fiber to deform, affect signal transmission. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of compression-resistant USB photoelectric composite wire to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of compression-resistant USB photoelectric composite wire, including four-core multimode optical fiber, four signal lines and a control line are located at the periphery of the four-core multimode optical fiber, four the signal line and a control line are extruded and packed with wrapping tape, the wrapping tape is provided with profiled filler strip in, the profiled filler strip includes the round tube strip of being set on the four-core multimode optical fiber outer, five compression-resistant straight strips that are integrally formed on the outer wall of the round tube strip and are annularly spaced, and the arc-shaped strip that is integrally formed on the compression-resistant straight strip and is away from the end face of the round tube strip and is in contact with the inner wall of the wrapping tape, the compression-resistant straight strip is provided with lightening hole, which extends along the radial direction of the four-core multimode optical fiber and penetrates front and back, the wrapping tape is extruded and packed with polytetrafluoroethylene sheath, the polytetrafluoroethylene sheath is provided with aluminum foil shield outside, and the aluminum foil shield is extruded and packed with EVM rubber sheath outside.

[0005] Optionally, the front longitudinal section of the lightening hole is rectangular, one end of the lightening hole extends to the outer wall of the round tube strip along the radial direction of the four-core multimode optical fiber, and the other end of the lightening hole extends to the inner wall of the arc-shaped strip along the radial direction of the four-core multimode optical fiber.

[0006] Optionally, the inner wall of the round tube strip is integrally formed with five annularly spaced arch-shaped strips, the front longitudinal section of the arch-shaped strip is circular arc-shaped, and the circular arc convex of the arch-shaped strip is tangent to the outer wall of the four-core multimode optical fiber.

[0007] Optionally, the arch-shaped strip is arranged in a staggered manner with the compression-resistant straight strip, and the thickness of the arch-shaped strip is the same as the thickness of the round tube strip.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] 1. The utility model discloses a special-shaped filling strip is separated four core multimode optical fiber, signal line and control line, makes it independent, and the special-shaped filling strip is as the endoskeleton of composite wire, ensures that the composite wire has good roundness;

[0010] 2. The utility model discloses a five arch strips maintain four core multimode optical fiber at the axis of cable, and the arch strip is soft, and the buffering energy absorption effect is good, can good reduce the destruction of external pressure to four core multimode optical fiber, and four core multimode optical fiber and the contact area of arch strip are small, and the frictional resistance of arch strip to four core multimode optical fiber is small, and four core multimode optical fiber is convenient to pass through the round pipe strip. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structural diagram of the utility model;

[0012] Figure 2 It is the structural diagram of the special-shaped filling strip in the utility model.

[0013] In the drawing: 1, four core multimode optical fiber;2, signal line;3, control line;4, wrapping tape;5, special-shaped filling strip;501, round pipe strip;502, compression-resistant straight strip;503, arc strip;504, lightening hole;505, arch strip;6, polytetrafluoroethylene sheath;7, aluminum foil shield;8, EVM rubber sheath. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0015] Embodiment: please refer to Figure 1 And Figure 2 The utility model provides a compression-resistant USB photoelectric composite wire, including four core multimode optical fiber 1, four signal lines 2 and a control line 3 are established at the outer periphery of four core multimode optical fiber 1, and the wrapping tape 4 is extruded and covered to four signal lines 2 and a control line 3, and the wrapping tape 4 is extruded and covered to the polytetrafluoroethylene sheath 6 outside, and the aluminum foil shield 7 is connected to the polytetrafluoroethylene sheath 6, and the EVM rubber sheath 8 is extruded and covered to the aluminum foil shield 7 outside.

[0016] The profiled filler strip 5 is provided in the wrapping tape 4, the profiled filler strip 5 is made of polypropylene extrusion, the profiled filler strip 5 comprises a round tube strip 501 sleeved outside the four-core multi-mode optical fiber 1, five anti-pressure straight strips 502 integrally formed on the outer wall of the round tube strip 501 and arranged in a ring shape at intervals, and an arc-shaped strip 503 integrally formed on the anti-pressure straight strip 502 and away from the end face of the round tube strip 501 and abutting against the inner wall of the wrapping tape 4, the anti-pressure straight strip 502 is provided with a lightening hole 504 extending along the radial direction of the four-core multi-mode optical fiber 1 and penetrating through the front and back, the longitudinal section of the lightening hole 504 is rectangular, one end of the lightening hole 504 extends to the outer wall of the round tube strip 501 along the radial direction of the four-core multi-mode optical fiber 1, and the other end of the lightening hole 504 extends to the inner wall of the arc-shaped strip 503 along the radial direction of the four-core multi-mode optical fiber 1. The lightening hole 504 reduces the material of the profiled filler strip 5 on the one hand, realizes the reduction of the mass of the composite wire, and on the other hand provides space for the pressure deformation of the anti-pressure straight strip 502, so that the anti-pressure straight strip 502 has good buffering and energy absorption effect.

[0017] The profiled filler strip 5 separates the four-core multi-mode optical fiber 1, the signal line 2 and the control line 3, so that they are independent of each other, the profiled filler strip 5 serves as the inner skeleton of the composite wire, and the composite wire has good roundness.

[0018] In addition to the above-mentioned embodiments, the inner wall of the round tube strip 501 is integrally formed with five arc-shaped strips 505 arranged in a ring shape at intervals, the longitudinal section of the arc-shaped strip 505 is a circular arc, and the circular arc of the arc-shaped strip 505 is tangent to the outer wall of the four-core multi-mode optical fiber 1. The arc-shaped strip 505 is arranged in a staggered manner with the anti-pressure straight strip 502, and the thickness of the arc-shaped strip 505 is the same as the thickness of the round tube strip 501. The five arc-shaped strips 505 maintain the four-core multi-mode optical fiber 1 at the center of the cable, the arc-shaped strip 505 is soft in texture and has good buffering and energy absorption effect, can well reduce the damage of external pressure to the four-core multi-mode optical fiber 1, the contact area between the four-core multi-mode optical fiber 1 and the arc-shaped strip 505 is small, the friction resistance of the arc-shaped strip 505 to the four-core multi-mode optical fiber 1 is small, and the four-core multi-mode optical fiber 1 can pass through the round tube strip 501 conveniently.

[0019] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A crush resistant USB optical electrical composite cable, comprising a four-core multi-mode optical fiber (1), four signal wires (2) and one control wire (3) arranged on the periphery of the four-core multi-mode optical fiber (1), and a wrapping tape (4) arranged on the periphery of the four signal wires (2) and the one control wire (3), characterized in that: The wrapping tape (4) is internally provided with a special-shaped filling strip (5), the special-shaped filling strip (5) comprises a circular tube strip (501) sleeved outside the four-core multi-mode optical fiber (1), five anti-pressure straight strips (502) integrally formed on the outer wall of the circular tube strip (501) and arranged in a ring shape, and an arc-shaped strip (503) integrally formed on the anti-pressure straight strip (502) and away from the end face of the circular tube strip (501) and abutting against the inner wall of the wrapping tape (4), the anti-pressure straight strip (502) is provided with a lightening hole (504) extending along the radial direction of the four-core multi-mode optical fiber (1) and penetrating front and back, and the wrapping tape (4) is externally provided with a polytetrafluoroethylene sheath (6), the polytetrafluoroethylene sheath (6) is externally sleeved with an aluminum foil shield (7), and the aluminum foil shield (7) is externally provided with an EVM rubber sheath (8).

2. The crush resistant USB optical electrical composite wire of claim 1, wherein: The front longitudinal section of the lightening hole (504) is rectangular, one end of the lightening hole (504) extends to the outer wall of the circular tube strip (501) along the radial direction of the four-core multi-mode optical fiber (1), and the other end of the lightening hole (504) extends to the inner wall of the arc-shaped strip (503) along the radial direction of the four-core multi-mode optical fiber (1).

3. The crush resistant USB optical electrical composite wire of claim 1, wherein: The inner wall of the circular tube strip (501) is integrally formed with five arc-shaped strips (505) arranged in a ring shape, the front longitudinal section of the arc-shaped strip (505) is a circular arc, and the circular arc of the arc-shaped strip (505) is tangent to the outer wall of the four-core multi-mode optical fiber (1).

4. The crush resistant USB optical electrical composite wire of claim 3, wherein: The arc-shaped strip (505) is arranged in a staggered manner with the anti-pressure straight strip (502), and the thickness of the arc-shaped strip (505) is the same as the thickness of the circular tube strip (501).

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