CN104700959B - A kind of remote radio head optoelectrical cable and manufacture method thereof - Google Patents
A kind of remote radio head optoelectrical cable and manufacture method thereof Download PDFInfo
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- CN104700959B CN104700959B CN201510159901.XA CN201510159901A CN104700959B CN 104700959 B CN104700959 B CN 104700959B CN 201510159901 A CN201510159901 A CN 201510159901A CN 104700959 B CN104700959 B CN 104700959B
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Abstract
The invention belongs to technical field of cables, especially relate to a kind of remote radio head optoelectrical cable, it includes optical transmission unit, electricity transmission unit and oversheath, and described electricity transmission unit is made up of the first conductor layer and the second conductor layer；It is characterized in that the inner sheath that the Loose tube that multifiber unit by multifiber unit, envelopes by described optical transmission unit, the enhancement Layer being evenly distributed on outside Loose tube, extrusion molding are coated on outside enhancement Layer is constituted, every fiber unit is by optical fibers and envelopes fibre-optic hard-pressed bale layer and constitutes；First conductor layer is made up of the first kind raised line being distributed separately and first kind groove, and the second conductor layer is made up of the Equations of The Second Kind raised line being distributed separately and Equations of The Second Kind groove.Present invention further teaches the manufacture method of remote radio head optoelectrical cable.The present invention have simple in construction, easily fabricated, attenuation constant is lower, use more convenient flexibly, the beneficial effect such as temperature adaptation scope is wider.
Description
Technical field
The invention belongs to technical field of cables, especially relate to a kind of remote radio head optoelectrical cable.
Background technology
Open-minded along with 3G, 4G even more high frequency network, the cable amount of base station reduces the most day by day, reason is to have employed substantial amounts of to zoom out cable or dragging optical cable, this not only reduces the cost of the base station construction of operator, and makes maintenance work volume convenient, base station to greatly reduce；But, in prior art, remote radio head optical cable can not meet the demand of development, and volume is relatively big, cost remains high.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to disclose a kind of remote radio head optoelectrical cable, it realizes by the following technical solutions.
In first embodiment of the present invention, a kind of remote radio head optoelectrical cable, it includes optical transmission unit, electricity transmission unit and oversheath 91, and described electricity transmission unit is made up of the first conductor layer and the second conductor layer；It is characterized in that: the inner sheath 4 that the Loose tube 2 that multifiber unit by multifiber unit 1, is enveloped by described optical transmission unit, the enhancement Layer 3 being evenly distributed on outside Loose tube, extrusion molding are coated on outside enhancement Layer is constituted；Optical transmission unit is coated with ground plane 5, ground plane is coated with sealing coat 6, and the first conductor layer 7 is positioned at that sealing coat is outer, the outer extrusion molding of the first conductor layer is coated with middle sheath the 8, second conductor layer 9 and is positioned at that middle sheath is outer, oversheath extrusion molding is coated on outside the second conductor layer；The cumulative volume of multifiber unit accounts for the 35%～75% of Loose tube inner space volume；With in the projection of the plane of the axis perpendicular of ground plane: the first conductor layer and the second conductor layer have an equal area, or ground plane, the first conductor layer, the second conductor layer three have equal area；Described fiber unit is optical fibers.
In second embodiment of the present invention, a kind of remote radio head optoelectrical cable, it includes optical transmission unit, electricity transmission unit and oversheath 91, and described electricity transmission unit is made up of the first conductor layer and the second conductor layer；It is characterized in that: the inner sheath 4 that the Loose tube 2 that multifiber unit by multifiber unit 1, is enveloped by described optical transmission unit, the enhancement Layer 3 being evenly distributed on outside Loose tube, extrusion molding are coated on outside enhancement Layer is constituted, every fiber unit is by optical fibers 12 and envelopes fibre-optic hard-pressed bale layer 11 and constitutes；Optical transmission unit is coated with ground plane 5, ground plane is coated with sealing coat 6, and the first conductor layer 7 is positioned at that sealing coat is outer, the outer extrusion molding of the first conductor layer is coated with middle sheath the 8, second conductor layer 9 and is positioned at that middle sheath is outer, oversheath extrusion molding is coated on outside the second conductor layer；The cumulative volume of multifiber unit accounts for the 35%～75% of Loose tube inner space volume；With in the projection of the plane of the axis perpendicular of ground plane: the first conductor layer and the second conductor layer have an equal area, or ground plane, the first conductor layer, the second conductor layer three have equal area.
In 3rd embodiment of the present invention, a kind of remote radio head optoelectrical cable, it includes optical transmission unit, electricity transmission unit and oversheath 91, and described electricity transmission unit is made up of the first conductor layer and the second conductor layer；It is characterized in that: the inner sheath 4 that the Loose tube 2 that multifiber unit by multifiber unit 1, is enveloped by described optical transmission unit, the enhancement Layer 3 being evenly distributed on outside Loose tube, extrusion molding are coated on outside enhancement Layer is constituted, every fiber unit is by optical fibers 12 and envelopes fibre-optic hard-pressed bale layer 11 and constitutes；Optical transmission unit is coated with ground plane 5, ground plane is coated with sealing coat 6, and the first conductor layer 7 is positioned at that sealing coat is outer, the outer extrusion molding of the first conductor layer is coated with middle sheath the 8, second conductor layer 9 and is positioned at that middle sheath is outer, oversheath extrusion molding is coated on outside the second conductor layer；The cumulative volume of multifiber unit accounts for the 35%～75% of Loose tube inner space volume；First conductor layer is made up of the first kind raised line 71 being distributed separately and first kind groove 72, and first kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of first kind raised line exceeds the surface of first kind groove, and first kind groove does not penetrate into sealing coat；Second conductor layer is made up of the Equations of The Second Kind raised line 91 being distributed separately and Equations of The Second Kind groove 92, and Equations of The Second Kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of Equations of The Second Kind raised line exceeds the surface of Equations of The Second Kind groove, and Equations of The Second Kind groove does not penetrate into ground plane；What the underface of Equations of The Second Kind raised line was corresponding is first kind groove, and what the underface of Equations of The Second Kind groove was corresponding is first kind raised line, and the width of Equations of The Second Kind raised line is equal to the width of first kind groove, and the width of Equations of The Second Kind groove is equal to the width of first kind raised line；Cross and be perpendicular to the axis of ground plane and arbitrarily cut described optoelectrical cable: the area of Equations of The Second Kind raised line is the first sectional area with the area sum of first kind groove, and the area of Equations of The Second Kind groove is the second sectional area with the area sum of first kind raised line；All first sectional areas are equal, and all second sectional areas are equal, and all first sectional areas are equal with all second sectional areas.
In 4th embodiment of invention, a kind of remote radio head optoelectrical cable, it includes optical transmission unit, electricity transmission unit and oversheath 91, and described electricity transmission unit is made up of the first conductor layer and the second conductor layer；It is characterized in that: described optical transmission unit by multifiber unit 1, multifiber unit enveloped inner sheath 4 constitute；Optical transmission unit is coated with ground plane 5, ground plane is coated with sealing coat 6, and the first conductor layer 7 is positioned at that sealing coat is outer, the outer extrusion molding of the first conductor layer is coated with middle sheath the 8, second conductor layer 9 and is positioned at that middle sheath is outer, oversheath extrusion molding is coated on outside the second conductor layer；The cumulative volume of multifiber unit accounts for the 35%～75% of inner sheath inner space volume；With in the projection of the plane of the axis perpendicular of ground plane: the first conductor layer and the second conductor layer have an equal area, or ground plane, the first conductor layer, the second conductor layer three have equal area；Described fiber unit is optical fibers.
The present invention have simple in construction, easily fabricated, attenuation constant is lower, use more convenient flexibly, the beneficial effect such as temperature adaptation scope is wider.
Accompanying drawing explanation
Fig. 1 is the perspective view after one section of stripping of embodiment 1 of the present invention.
Fig. 2 is the cross-sectional structure schematic diagram that Fig. 1 amplifies.
Fig. 3 is the perspective view after one section of stripping of embodiment 2 of the present invention.
Fig. 4 is the perspective view after one section of stripping of embodiment 3 of the present invention.
Fig. 5 is the cross-sectional structure schematic diagram of embodiment 4 of the present invention.
Detailed description of the invention
Embodiment
1
Asking for an interview Fig. 1 and Fig. 2, a kind of remote radio head optoelectrical cable, it includes optical transmission unit, electricity transmission unit and oversheath 91, and described electricity transmission unit is made up of the first conductor layer and the second conductor layer；It is characterized in that: the inner sheath 4 that the Loose tube 2 that multifiber unit by eight fiber units 1, is enveloped by described optical transmission unit, the enhancement Layer 3 being evenly distributed on outside Loose tube, extrusion molding are coated on outside enhancement Layer is constituted；Optical transmission unit is coated with ground plane 5, ground plane is coated with sealing coat 6, and the first conductor layer 7 is positioned at that sealing coat is outer, the outer extrusion molding of the first conductor layer is coated with middle sheath the 8, second conductor layer 9 and is positioned at that middle sheath is outer, oversheath extrusion molding is coated on outside the second conductor layer；The cumulative volume of multifiber unit accounts for the 35%～75% of Loose tube inner space volume；With in the projection of the plane of the axis perpendicular of ground plane: the first conductor layer and the second conductor layer have an equal area, or ground plane, the first conductor layer, the second conductor layer three have equal area；Described fiber unit is optical fibers.
Certainly, the fiber unit described in this embodiment can be other many, but at least one.
Embodiment
2
Asking for an interview Fig. 3, a kind of remote radio head optoelectrical cable, it includes optical transmission unit, electricity transmission unit and oversheath 91, and described electricity transmission unit is made up of the first conductor layer and the second conductor layer；It is characterized in that: the inner sheath 4 that the Loose tube 2 that multifiber unit by four fiber units 1, is enveloped by described optical transmission unit, the enhancement Layer 3 being evenly distributed on outside Loose tube, extrusion molding are coated on outside enhancement Layer is constituted, every fiber unit is by optical fibers 12 and envelopes fibre-optic hard-pressed bale layer 11 and constitutes；Optical transmission unit is coated with ground plane 5, ground plane is coated with sealing coat 6, and the first conductor layer 7 is positioned at that sealing coat is outer, the outer extrusion molding of the first conductor layer is coated with middle sheath the 8, second conductor layer 9 and is positioned at that middle sheath is outer, oversheath extrusion molding is coated on outside the second conductor layer；The cumulative volume of multifiber unit accounts for the 35%～75% of Loose tube inner space volume；With in the projection of the plane of the axis perpendicular of ground plane: the first conductor layer and the second conductor layer have an equal area, or ground plane, the first conductor layer, the second conductor layer three have equal area.
Certainly, further, in this embodiment, the inner sheath 4 that enhancement Layer 3 that multifiber unit by multifiber unit 1, can also be enveloped by described optical transmission unit, extrusion molding are coated on outside enhancement Layer is constituted, and every fiber unit is by optical fibers 12 and envelopes fibre-optic hard-pressed bale layer 11 and constitutes.
Certainly, the fiber unit described in this embodiment can be other many, but at least one.
Embodiment
3
Asking for an interview Fig. 4, a kind of remote radio head optoelectrical cable, it includes optical transmission unit, electricity transmission unit and oversheath 91, and described electricity transmission unit is made up of the first conductor layer and the second conductor layer；It is characterized in that: the inner sheath 4 that the Loose tube 2 that multifiber unit by four fiber units 1, is enveloped by described optical transmission unit, the enhancement Layer 3 being evenly distributed on outside Loose tube, extrusion molding are coated on outside enhancement Layer is constituted, every fiber unit is by optical fibers 12 and envelopes fibre-optic hard-pressed bale layer 11 and constitutes；Optical transmission unit is coated with ground plane 5, ground plane is coated with sealing coat 6, and the first conductor layer 7 is positioned at that sealing coat is outer, the outer extrusion molding of the first conductor layer is coated with middle sheath the 8, second conductor layer 9 and is positioned at that middle sheath is outer, oversheath extrusion molding is coated on outside the second conductor layer；The cumulative volume of multifiber unit accounts for the 35%～75% of Loose tube inner space volume；First conductor layer is made up of the first kind raised line 71 being distributed separately and first kind groove 72, and first kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of first kind raised line exceeds the surface of first kind groove, and first kind groove does not penetrate into sealing coat；Second conductor layer is made up of the Equations of The Second Kind raised line 91 being distributed separately and Equations of The Second Kind groove 92, and Equations of The Second Kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of Equations of The Second Kind raised line exceeds the surface of Equations of The Second Kind groove, and Equations of The Second Kind groove does not penetrate into ground plane；What the underface of Equations of The Second Kind raised line was corresponding is first kind groove, and what the underface of Equations of The Second Kind groove was corresponding is first kind raised line, and the width of Equations of The Second Kind raised line is equal to the width of first kind groove, and the width of Equations of The Second Kind groove is equal to the width of first kind raised line；Cross and be perpendicular to the axis of ground plane and arbitrarily cut described optoelectrical cable: the area of Equations of The Second Kind raised line is the first sectional area with the area sum of first kind groove, and the area of Equations of The Second Kind groove is the second sectional area with the area sum of first kind raised line；All first sectional areas are equal, and all second sectional areas are equal, and all first sectional areas are equal with all second sectional areas.
Certainly, in this embodiment, the inner sheath 4 that enhancement Layer 3 that multifiber unit by multifiber unit 1, can also be enveloped by described optical transmission unit, extrusion molding are coated on outside enhancement Layer is constituted, and every fiber unit is by optical fibers 12 and envelopes fibre-optic hard-pressed bale layer 11 and constitutes.
Certainly, the fiber unit described in this embodiment can be other many, but at least one.
A kind of remote radio head optoelectrical cable in this embodiment, it is characterised in that its manufacture process comprises the steps of
Manufacture the step of finished product Loose tube: take polybutylene terephthalate or modified polypropene puts into secondary coated machine, form Loose tube by crowded tube process, and at least one by optical fibers and is enveloped the fiber unit that fibre-optic hard-pressed bale layer constitutes inserts in the space within Loose tube；Or the fiber unit that at least is made up of optical fibers is inserted in the space within Loose tube；The cumulative volume making at least fiber unit accounts for 35%～the 75% of Loose tube inner space volume, 1.0005～1.001 times of the multifiber unit a length of Loose tube length in Loose tube, form finished product Loose tube；
Manufacture the step of optical transmission unit: take the above-mentioned finished product Loose tube processed, by aramid yarn or polyamide staple fibre spun yarn or glass fiber yarn, spiral is uniformly coated on outside finished product Loose tube and forms enhancement Layer, take polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding is coated on outside enhancement Layer and forms inner sheath, complete the manufacture of optical transmission unit；
Manufacture the step of ground plane: take metallic conductor and be coated on outside optical transmission unit form ground plane than braiding cladding or spiral winding；
Manufacture the step of sealing coat: take polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding is coated on outside ground plane and forms sealing coat；
Manufacturing the step of the first conductor layer: the first conductor layer material taking banding is coated on outside sealing coat, the first conductor layer two edges joint in banding uses the mode of welding to be attached, and makes the first conductor layer to sealing coat full-shield；Wherein the first conductor layer is made up of the first kind raised line being distributed separately and first kind groove, and first kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of first kind raised line exceeds the surface of first kind groove, and first kind groove does not penetrate into sealing coat；
The step of sheath in manufacture: take polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding is coated on outside the first conductor layer sheath in formation；
Manufacturing the step of the second conductor layer: the second conductor layer material taking banding is coated on outside middle sheath, the second conductor layer two edges joint in banding uses the mode of welding to be attached, and makes the second conductor layer centering sheath full-shield form the second conductor layer；Wherein the second conductor layer is made up of the Equations of The Second Kind raised line being distributed separately and Equations of The Second Kind groove, and Equations of The Second Kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of Equations of The Second Kind raised line exceeds the surface of Equations of The Second Kind groove, and Equations of The Second Kind groove does not penetrate into ground plane；What the underface of Equations of The Second Kind raised line was corresponding is first kind groove, and what the underface of Equations of The Second Kind groove was corresponding is first kind raised line, and the width of Equations of The Second Kind raised line is equal to the width of first kind groove, and the width of Equations of The Second Kind groove is equal to the width of first kind raised line；Cross and be perpendicular to the axis of ground plane and arbitrarily cut described optoelectrical cable: the area of Equations of The Second Kind raised line is the first sectional area with the area sum of first kind groove, and the area of Equations of The Second Kind groove is the second sectional area with the area sum of first kind raised line；All first sectional areas are equal, and all second sectional areas are equal, and all first sectional areas are equal with all second sectional areas；
Manufacture the step of oversheath: take polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding is coated on outside the second conductor layer and forms oversheath, complete the manufacture of the remote radio head optoelectrical cable of new structure.
The manufacture method of a kind of remote radio head optoelectrical cable described above, it is characterized in that described: manufacture the first conductor layer step, manufacture in the step of sheath, the step that manufactures the second conductor layer carry out on same sheath extruding machine, first conductor layer, the second conductor layer are released with identical speed, same speed drawing, and during releasing, underface corresponding with first kind groove, Equations of The Second Kind groove, the underface of Equations of The Second Kind raised line is corresponding with first kind raised line.
Embodiment
4
Asking for an interview Fig. 5, a kind of remote radio head optoelectrical cable, it includes optical transmission unit, electricity transmission unit and oversheath 91, and described electricity transmission unit is made up of the first conductor layer and the second conductor layer；It is characterized in that: described optical transmission unit by eight fiber units 1, multifiber unit enveloped inner sheath 4 constitute；Optical transmission unit is coated with ground plane 5, ground plane is coated with sealing coat 6, and the first conductor layer 7 is positioned at that sealing coat is outer, the outer extrusion molding of the first conductor layer is coated with middle sheath the 8, second conductor layer 9 and is positioned at that middle sheath is outer, oversheath extrusion molding is coated on outside the second conductor layer；The cumulative volume of multifiber unit accounts for the 35%～75% of inner sheath inner space volume；With in the projection of the plane of the axis perpendicular of ground plane: the first conductor layer and the second conductor layer have an equal area, or ground plane, the first conductor layer, the second conductor layer three have equal area；Described fiber unit is optical fibers.
Certainly, the remote radio head optoelectrical cable of new structure described above, it is characterised in that described every fiber unit also can be by optical fibers 12 and envelope fibre-optic hard-pressed bale layer 11 and constitute.
Certainly, in this embodiment, a kind of remote radio head optoelectrical cable, it is also possible to be: it includes optical transmission unit, electricity transmission unit and oversheath 91, described electricity transmission unit is made up of the first conductor layer and the second conductor layer；It is characterized in that: described optical transmission unit is made up of multifiber unit 1, the inner sheath 4 that enveloped by multifiber unit, every fiber unit is by optical fibers 12 and envelopes fibre-optic hard-pressed bale layer 11 and constitutes；Optical transmission unit is coated with ground plane 5, ground plane is coated with sealing coat 6, and the first conductor layer 7 is positioned at that sealing coat is outer, the outer extrusion molding of the first conductor layer is coated with middle sheath the 8, second conductor layer 9 and is positioned at that middle sheath is outer, oversheath extrusion molding is coated on outside the second conductor layer；The cumulative volume of multifiber unit accounts for the 35%～75% of inner sheath inner space volume；First conductor layer is made up of the first kind raised line 71 being distributed separately and first kind groove 72, and first kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of first kind raised line exceeds the surface of first kind groove, and first kind groove does not penetrate into sealing coat；Second conductor layer is made up of the Equations of The Second Kind raised line 91 being distributed separately and Equations of The Second Kind groove 92, and Equations of The Second Kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of Equations of The Second Kind raised line exceeds the surface of Equations of The Second Kind groove, and Equations of The Second Kind groove does not penetrate into ground plane；What the underface of Equations of The Second Kind raised line was corresponding is first kind groove, and what the underface of Equations of The Second Kind groove was corresponding is first kind raised line, and the width of Equations of The Second Kind raised line is equal to the width of first kind groove, and the width of Equations of The Second Kind groove is equal to the width of first kind raised line；Cross and be perpendicular to the axis of ground plane and arbitrarily cut described optoelectrical cable: the area of Equations of The Second Kind raised line is the first sectional area with the area sum of first kind groove, and the area of Equations of The Second Kind groove is the second sectional area with the area sum of first kind raised line；All first sectional areas are equal, and all second sectional areas are equal, and all first sectional areas are equal with all second sectional areas.
Certainly, the fiber unit described in this embodiment can be other many, but at least one.
A kind of remote radio head optoelectrical cable in this embodiment, it is characterised in that its manufacture process comprises the steps of
Manufacture the step of optical transmission unit: take polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding and form inner sheath by crowded tube process, and at least one by optical fibers and is enveloped the fiber unit that fibre-optic hard-pressed bale layer constitutes inserts in the space within inner sheath；Or the fiber unit that at least is made up of optical fibers is inserted in the space within inner sheath；The cumulative volume making at least fiber unit accounts for 35%～the 75% of inner sheath inner space volume, 1.0005～1.001 times of the multifiber unit a length of Loose tube length in inner sheath, form optical transmission unit；
Manufacture the step of ground plane: take metallic conductor and be coated on outside optical transmission unit form ground plane than braiding cladding or spiral winding；
Manufacture the step of sealing coat: take polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding is coated on outside ground plane and forms sealing coat；
Manufacturing the step of the first conductor layer: the first conductor layer material taking banding is coated on outside sealing coat, the first conductor layer two edges joint in banding uses the mode of welding to be attached, and makes the first conductor layer to sealing coat full-shield；Wherein the first conductor layer is made up of the first kind raised line being distributed separately and first kind groove, and first kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of first kind raised line exceeds the surface of first kind groove, and first kind groove does not penetrate into sealing coat；
The step of sheath in manufacture: take polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding is coated on outside the first conductor layer sheath in formation；
Manufacturing the step of the second conductor layer: the second conductor layer material taking banding is coated on outside middle sheath, the second conductor layer two edges joint in banding uses the mode of welding to be attached, and makes the second conductor layer centering sheath full-shield form the second conductor layer；Wherein the second conductor layer is made up of the Equations of The Second Kind raised line being distributed separately and Equations of The Second Kind groove, and Equations of The Second Kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of Equations of The Second Kind raised line exceeds the surface of Equations of The Second Kind groove, and Equations of The Second Kind groove does not penetrate into ground plane；What the underface of Equations of The Second Kind raised line was corresponding is first kind groove, and what the underface of Equations of The Second Kind groove was corresponding is first kind raised line, and the width of Equations of The Second Kind raised line is equal to the width of first kind groove, and the width of Equations of The Second Kind groove is equal to the width of first kind raised line；Cross and be perpendicular to the axis of ground plane and arbitrarily cut described optoelectrical cable: the area of Equations of The Second Kind raised line is the first sectional area with the area sum of first kind groove, and the area of Equations of The Second Kind groove is the second sectional area with the area sum of first kind raised line；All first sectional areas are equal, and all second sectional areas are equal, and all first sectional areas are equal with all second sectional areas；
Manufacture the step of oversheath: take polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding is coated on outside the second conductor layer and forms oversheath, complete the manufacture of the remote radio head optoelectrical cable of new structure.
The manufacture method of a kind of remote radio head optoelectrical cable described above, it is characterized in that described: manufacture the first conductor layer step, manufacture in the step of sheath, the step that manufactures the second conductor layer carry out on same sheath extruding machine, first conductor layer, the second conductor layer are released with identical speed, same speed drawing, and during releasing, underface corresponding with first kind groove, Equations of The Second Kind groove, the underface of Equations of The Second Kind raised line is corresponding with first kind raised line.
A kind of remote radio head optoelectrical cable described in any of the above-described embodiment, it is characterised in that described optical fibers is silica fibre or plastic optical fiber.
A kind of remote radio head optoelectrical cable described in any of the above-described embodiment, it is characterised in that described optical fibers is single-mode fiber or multimode fibre.
Further, a kind of remote radio head optoelectrical cable described above, it is characterised in that described fibre-optic type is G.652 type or G.653 type or G.654 type or G.655 type or G.656 type or G.657 type or A1a type or A1b type or A1c type or A1d type or OM1 type or OM2 type or OM3 type.
A kind of remote radio head optoelectrical cable described in any of the above-described embodiment, it is characterised in that the material of described inner sheath is polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber.
A kind of remote radio head optoelectrical cable described in any of the above-described embodiment, it is characterised in that the material of described sealing coat is polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber.
A kind of remote radio head optoelectrical cable described in any of the above-described embodiment, it is characterised in that the material of described middle sheath is polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber.
A kind of remote radio head optoelectrical cable described in any of the above-described embodiment, it is characterised in that the material of described oversheath is polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber.
A kind of remote radio head optoelectrical cable described in any of the above-described embodiment, it is characterised in that described ground plane is conductive.
A kind of remote radio head optoelectrical cable described above, it is characterised in that the material of described Loose tube is polybutylene terephthalate or modified polypropene or steel or aluminum.
A kind of remote radio head optoelectrical cable described above, it is characterised in that the material of described enhancement Layer is aramid yarn or polyamide staple fibre spun yarn or glass fiber yarn.
A kind of remote radio head optoelectrical cable described above, it is characterised in that the material of described hard-pressed bale layer is polrvinyl chloride or nylon or politef or thermoplastic elastomer (TPE).
A kind of remote radio head optoelectrical cable described in any of the above-described embodiment, it is characterised in that described first conductor layer and the second conductor layer are all electrically conductive, and are continuous print, conducting.
In the present invention, the first conductor layer, the second conductor layer have identical cross-sectional area so that optoelectrical cable can transmit Monophase electric power load；There is wiring layers, can ground connection, the impact that protection optoelectrical cable is struck by lightning from thunderbolt and minimizing easily；When ground plane and the first conductor layer, the second conductor layer have identical cross-sectional area, can use as three phase supply, therefore, use quite flexible.
In the present invention, the first conductor layer is made up of the first kind raised line being distributed separately and first kind groove, the second conductor layer is when being made up of the Equations of The Second Kind raised line being distributed separately and Equations of The Second Kind groove, can use as radio frequency line；Due to first kind raised line, first kind groove, Equations of The Second Kind raised line and the synergism of Equations of The Second Kind groove, when conductor layer in the present invention is used as coaxial cable, during 75 Ω nominal characteristic impedance value, the attenuation constant≤18.0dB/100m of the attenuation constant of the attenuation constant of the attenuation constant of the attenuation constant of the attenuation constant of 30MHz≤1.5dB/100m, 200MHz≤3.0dB/100m, 800MHz≤8.0dB/100m, 1000MHz≤12.0dB/100m, 2000MHz≤15.0dB/100m, 3000MHz；And in prior art, during 75 Ω nominal characteristic impedance value, the attenuation constant≤40.0dB/100m of the attenuation constant of the attenuation constant of the attenuation constant of the attenuation constant of the attenuation constant of 30MHz≤2.0dB/100m, 200MHz≤4.0dB/100m, 800MHz≤12.0dB/100m, 1000MHz≤20.0dB/100m, 2000MHz≤30.0dB/100m, 3000MHz；Therefore, attenuation constant substantially reduces, therefore the remote radio head optoelectrical cable of the present invention can transmit longer distance.
In the present invention, the cumulative volume of multifiber unit accounts for Loose tube or the 35%～75% of inner sheath inner space volume, make light unit can have bigger range of activity in Loose tube or inner sheath, fiber unit is made to adapt to wider temperature range, through test, in the range of-80 DEG C～+150 DEG C, in the present invention, the fibre-optic pad value change absolute value maximum in fiber unit is only 0.025dB/km, has reached preferable using effect；Expand range of application, make maintenance cost less expensive.
Simply, easily grasp, equipment investment is low for manufacture method in the present invention.
Therefore, the present invention have simple in construction, easily fabricated, attenuation constant is lower, use more convenient flexibly, the beneficial effect such as temperature adaptation scope is wider.
The present invention is not limited to above-mentioned preferred forms, it will be appreciated that the design of the present invention can be implemented to use by other various forms, and they also fall within protection scope of the present invention.
Claims (7)
1. a remote radio head optoelectrical cable, it includes optical transmission unit, electricity transmission unit and oversheath, and described electricity transmission unit is made up of the first conductor layer and the second conductor layer；It is characterized in that: the inner sheath that the Loose tube that multifiber unit by multifiber unit, is enveloped by described optical transmission unit, the enhancement Layer being evenly distributed on outside Loose tube, extrusion molding are coated on outside enhancement Layer is constituted, every fiber unit is by optical fibers and envelopes fibre-optic hard-pressed bale layer and constitutes；Or the inner sheath that enhancement Layer that multifiber unit by multifiber unit, is enveloped by described optical transmission unit, extrusion molding are coated on outside enhancement Layer is constituted, every fiber unit is by optical fibers and envelopes fibre-optic hard-pressed bale layer and constitutes；Optical transmission unit is coated with ground plane, ground plane is coated with sealing coat, and the first conductor layer is positioned at outside sealing coat, the outer extrusion molding of the first conductor layer is coated with middle sheath, the second conductor layer is positioned at outside middle sheath, oversheath extrusion molding is coated on outside the second conductor layer；The cumulative volume of multifiber unit accounts for the 35%～75% of Loose tube inner space volume；First conductor layer is made up of the first kind raised line being distributed separately and first kind groove, and first kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of first kind raised line exceeds the surface of first kind groove, and first kind groove does not penetrate into sealing coat；Second conductor layer is made up of the Equations of The Second Kind raised line being distributed separately and Equations of The Second Kind groove, and Equations of The Second Kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of Equations of The Second Kind raised line exceeds the surface of Equations of The Second Kind groove, and Equations of The Second Kind groove does not penetrate into ground plane；What the underface of Equations of The Second Kind raised line was corresponding is first kind groove, and what the underface of Equations of The Second Kind groove was corresponding is first kind raised line, and the width of Equations of The Second Kind raised line is equal to the width of first kind groove, and the width of Equations of The Second Kind groove is equal to the width of first kind raised line；Cross and be perpendicular to the axis of ground plane and arbitrarily cut described optoelectrical cable: the area of Equations of The Second Kind raised line is the first sectional area with the area sum of first kind groove, and the area of Equations of The Second Kind groove is the second sectional area with the area sum of first kind raised line；All first sectional areas are equal, and all second sectional areas are equal, and all first sectional areas are equal with all second sectional areas.
A kind of remote radio head optoelectrical cable the most according to claim 1, it is characterised in that described optical fibers is silica fibre or plastic optical fiber.
A kind of remote radio head optoelectrical cable the most according to claim 2, it is characterised in that described optical fibers is single-mode fiber or multimode fibre.
A kind of remote radio head optoelectrical cable the most according to claim 3, it is characterised in that described fibre-optic type is G.652 type or G.653 type or G.654 type or G.655 type or G.656 type or G.657 type or A1a type or A1b type or A1c type or A1d type or OM1 type or OM2 type or OM3 type.
A kind of remote radio head optoelectrical cable the most according to claim 4, it is characterised in that the material of described inner sheath is polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber.
A kind of remote radio head optoelectrical cable the most according to claim 5, it is characterized in that the material of described sealing coat is polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber, the material of described middle sheath is polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber, the material of described oversheath is polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber.
7. the manufacture method of a remote radio head optoelectrical cable, it is characterised in that it comprises the steps of
Manufacture the step of finished product Loose tube: take polybutylene terephthalate or modified polypropene puts into secondary coated machine, form Loose tube by crowded tube process, and at least one by optical fibers and is enveloped the fiber unit that fibre-optic hard-pressed bale layer constitutes inserts in the space within Loose tube；Or the fiber unit that at least is made up of optical fibers is inserted in the space within Loose tube；The cumulative volume making at least fiber unit accounts for 35%～the 75% of Loose tube inner space volume, 1.0005～1.001 times of the multifiber unit a length of Loose tube length in Loose tube, form finished product Loose tube；
Manufacture the step of optical transmission unit: take the above-mentioned finished product Loose tube processed, by aramid yarn or polyamide staple fibre spun yarn or glass fiber yarn, spiral is uniformly coated on outside finished product Loose tube and forms enhancement Layer, take polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding is coated on outside enhancement Layer and forms inner sheath, complete the manufacture of optical transmission unit；
Manufacture the step of ground plane: take metallic conductor and be coated on outside optical transmission unit form ground plane than braiding cladding or spiral winding；
Manufacture the step of sealing coat: take polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding is coated on outside ground plane and forms sealing coat；
Manufacturing the step of the first conductor layer: the first conductor layer material taking banding is coated on outside sealing coat, the first conductor layer two edges joint in banding uses the mode of welding to be attached, and makes the first conductor layer to sealing coat full-shield；Wherein the first conductor layer is made up of the first kind raised line being distributed separately and first kind groove, and first kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of first kind raised line exceeds the surface of first kind groove, and first kind groove does not penetrate into sealing coat；
The step of sheath in manufacture: take polypropylene or polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding is coated on outside the first conductor layer sheath in formation；
Manufacturing the step of the second conductor layer: the second conductor layer material taking banding is coated on outside middle sheath, the second conductor layer two edges joint in banding uses the mode of welding to be attached, and makes the second conductor layer centering sheath full-shield form the second conductor layer；Wherein the second conductor layer is made up of the Equations of The Second Kind raised line being distributed separately and Equations of The Second Kind groove, and Equations of The Second Kind groove is that circumference ring leads to and caves in ground plane direction, and the surface of Equations of The Second Kind raised line exceeds the surface of Equations of The Second Kind groove, and Equations of The Second Kind groove does not penetrate into ground plane；What the underface of Equations of The Second Kind raised line was corresponding is first kind groove, and what the underface of Equations of The Second Kind groove was corresponding is first kind raised line, and the width of Equations of The Second Kind raised line is equal to the width of first kind groove, and the width of Equations of The Second Kind groove is equal to the width of first kind raised line；Cross and be perpendicular to the axis of ground plane and arbitrarily cut described optoelectrical cable: the area of Equations of The Second Kind raised line is the first sectional area with the area sum of first kind groove, and the area of Equations of The Second Kind groove is the second sectional area with the area sum of first kind raised line；All first sectional areas are equal, and all second sectional areas are equal, and all first sectional areas are equal with all second sectional areas；
Manufacture the step of oversheath: take polrvinyl chloride or Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon or polyurethane or rubber extrusion molding is coated on outside the second conductor layer and forms oversheath, complete the manufacture of remote radio head optoelectrical cable.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159901.XA CN104700959B (en) | 2015-04-07 | 2015-04-07 | A kind of remote radio head optoelectrical cable and manufacture method thereof |
| CN201610292581.XA CN105788751B (en) | 2015-04-07 | 2015-04-07 | A kind of electric power or communication remote radio head optoelectrical cable and its manufacture method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510159901.XA CN104700959B (en) | 2015-04-07 | 2015-04-07 | A kind of remote radio head optoelectrical cable and manufacture method thereof |
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| CN201610292581.XA Division CN105788751B (en) | 2015-04-07 | 2015-04-07 | A kind of electric power or communication remote radio head optoelectrical cable and its manufacture method |
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| CN104700959A CN104700959A (en) | 2015-06-10 |
| CN104700959B true CN104700959B (en) | 2017-01-04 |
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| DE59408600D1 (en) * | 1993-04-10 | 1999-09-16 | Cit Alcatel | Coaxial radio frequency cable |
| CN202110882U (en) * | 2011-06-23 | 2012-01-11 | 浙江万马集团特种电子电缆有限公司 | Novel photoelectric composite cable for cable televisions |
| CN103545047A (en) * | 2013-09-26 | 2014-01-29 | 张�浩 | Optical cable and coaxial optical cable |
| CN105609170B (en) * | 2014-09-03 | 2017-05-17 | 山东太平洋光纤光缆有限公司 | Lightning protection photoelectric composite cable, grounding layer, armoured layer and manufacturing methods for grounding layer and armoured layer |
| CN204695860U (en) * | 2015-04-07 | 2015-10-07 | 龚永祥 | A kind of remote radio head optoelectrical cable of new structure |
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