CN114937522A - Water-resistant double-layer co-extrusion sheath solar photovoltaic cable - Google Patents
Water-resistant double-layer co-extrusion sheath solar photovoltaic cable Download PDFInfo
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- CN114937522A CN114937522A CN202210673470.9A CN202210673470A CN114937522A CN 114937522 A CN114937522 A CN 114937522A CN 202210673470 A CN202210673470 A CN 202210673470A CN 114937522 A CN114937522 A CN 114937522A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000001125 extrusion Methods 0.000 title claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 54
- 239000000945 filler Substances 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000378 calcium silicate Substances 0.000 claims description 9
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 9
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 239000004718 silane crosslinked polyethylene Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000011491 glass wool Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000010410 layer Substances 0.000 description 39
- 239000002344 surface layer Substances 0.000 description 12
- 238000004804 winding Methods 0.000 description 10
- 229920000742 Cotton Polymers 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 230000007062 hydrolysis Effects 0.000 description 5
- 238000006460 hydrolysis reaction Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
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- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1895—Internal space filling-up means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The invention discloses a water-resistant double-layer co-extrusion sheath solar photovoltaic cable which comprises guide lines, wherein conductor wire cores are arranged on the periphery of the guide lines in an annular array, and the guide lines are used for guiding and arranging the conductor wire cores; the periphery of the conductor wire core is wrapped with an insulating sleeve which is used for protecting the conductor wire core; an inner sheath is sheathed outside the guide wire, and the guide wire and the conductor wire core are all positioned inside the inner sheath; the waterproof layer is arranged on the periphery of the inner sheath, the outer sheath is arranged on the periphery of the waterproof layer, the protection effect on conductor cores inside the photovoltaic cable can be effectively improved through the inner and outer double-layer sheaths, and the water resistance of the cable is improved through the arrangement of the waterproof layer; according to the invention, the waterproof layer is arranged on the periphery of the inner sheath, the outer sheath is arranged on the periphery of the waterproof layer, the protection effect on the conductor core inside the photovoltaic cable can be effectively improved through the inner and outer double-layer sheaths, and the water resistance of the cable is improved through the arrangement of the waterproof layer.
Description
Technical Field
The invention relates to the technical field of photovoltaic cables, in particular to a water-resistant double-layer co-extrusion sheath solar photovoltaic cable.
Background
With the gradual development of the solar photovoltaic grid-connected power generation industry with the advantages of zero emission, long service life and the like, the solar photovoltaic grid-connected power generation industry becomes one of the emerging industries which are most concerned in the world nowadays. The photovoltaic cable is an important connecting component in a wiring system for connecting the solar photovoltaic module and the inverter, and the service life of the whole system can be directly influenced by the quality of the photovoltaic cable.
In fact, solar energy systems are often used in harsh environmental conditions, and since solar energy needs to be used in open air to better collect solar energy, solar photovoltaic cables often need to be exposed to the sun and rain, and the cables need to have good water resistance to ensure the service life of the cables and the solar energy systems.
Disclosure of Invention
The invention aims to provide a water-resistant double-layer co-extrusion sheath solar photovoltaic cable, wherein a waterproof layer is arranged on the periphery of an inner sheath, an outer sheath is arranged on the periphery of the waterproof layer, the protection effect on conductor cores inside the photovoltaic cable can be effectively improved through the inner and outer double-layer sheaths, and the water resistance of the cable is improved through the arrangement of the waterproof layer.
The purpose of the invention can be realized by the following technical scheme:
a water-resistant double-layer co-extrusion sheath solar photovoltaic cable comprises guide lines, wherein conductor wire cores are arranged on the periphery of the guide lines in an annular array, and the guide lines are used for guiding and arranging the conductor wire cores;
the periphery of the conductor wire core is wrapped with an insulation sleeve which is used for protecting the conductor wire core;
the guide wire is sleeved with an inner sheath, and the guide wire and the conductor wire core are all positioned in the inner sheath;
the inner sheath periphery is provided with the waterproof layer, and the waterproof layer periphery is provided with the oversheath, can effectively improve the protection effect to the inside conductor sinle silk of photovoltaic cable through inside and outside double-deck sheath to the water proofness of cable is improved in the setting of waterproof layer.
As a further scheme of the invention: the inner sheath is inside to be provided with the filling layer, and the filling layer is used for compressing tightly the conductor sinle silk at the wire guide periphery.
As a further scheme of the invention: the filling layer is the mixture of insulating wear-resisting filler and thermal-insulated filler, and insulating wear-resisting filler is irradiation crosslinked polyolefin material, and insulating wear-resisting filler plays insulating effect to the conductor sinle silk of photovoltaic cable, and thermal-insulated filler is superfine glass cotton for isolated conductor sinle silk's high temperature, and the cotton coefficient of heat conductivity of superfine glass is little, can keep apart external high temperature effectively, makes inside conductor sinle silk and the insulating cover of photovoltaic cable keep normal temperature, avoids receiving high temperature after the decomposition.
As a further scheme of the invention: the wire guide periphery is annular array and is provided with a plurality of bandages, and the quantity of bandage is the same with the quantity of conductor sinle silk, collimates the conductor sinle silk through the bandage, ensures that the conductor sinle silk keeps relatively stable in the wire guide outside, can prevent effectively that the conductor sinle silk from taking place to rock to lead to the conductor sinle silk to take place the twisting, influence photovoltaic cable's normal life.
As a further scheme of the invention: the outer sheath is arranged on the periphery of the outer sheath, and the outer sheath is used for protecting the inner outer sheath.
As a further scheme of the invention: the outer surface layer sheath is a silane cross-linked polyethylene outer sheath.
As a further scheme of the invention: the thickness of the outer surface layer sheath is not less than 1.5mm, the density of the outer surface layer sheath is 0.90g/ml to 0.97g/ml, and the outer surface layer sheath is made of silane crosslinked polyethylene, so that the cable has the characteristics of flame retardance, water resistance, heat resistance and wear resistance, and can effectively ensure the protection effect on the interior of the optical cable.
As a further scheme of the invention: and a waterproof filling layer is arranged between the outer surface layer sheath and the outer sheath and is used for blocking water.
As a further scheme of the invention: the waterproof filling layer is calcium silicate filling particles, the waterproof layer is made of silica gel, the silica gel has waterproof performance and ductility, meanwhile, the outer gap of the outer sheath is provided with the waterproof filling layer made of calcium silicate, the overall hydrolysis resistance is improved, the cable is suitable for being used in an environment in contact with water for a long time, the service life of elements in the cable is prolonged, the use safety performance of the cable is guaranteed, the silica gel is matched with the calcium silicate, the cable has good hydrolysis resistance, the cable can be protected from being easily cracked in the use process, the transmission rate of the cable is improved, the service life of the cable is prolonged, and the tensile strength and the tear resistance of the cable are improved.
The invention has the beneficial effects that:
(1) the inner sheath periphery is provided with the waterproof layer, and the waterproof layer periphery is provided with the oversheath, can effectively improve the protection effect to the inside conductor sinle silk of photovoltaic cable through inside and outside double-deck sheath to the setting of waterproof layer improves the water resistance of cable.
(2) Insulating wear-resisting filler plays insulating effect to the conductor sinle silk of photovoltaic cable, and thermal-insulated filler is superfine glass cotton for isolated conductor sinle silk's high temperature, the cotton coefficient of heat conductivity of superfine glass is little, can keep apart external high temperature effectively, makes inside conductor sinle silk of photovoltaic cable and insulating cover keep normal temperature, avoids receiving high temperature after decomposition.
(3) Carry out the ligature with the conductor sinle silk through the bandage, ensure that the conductor sinle silk keeps relatively stable in the guidance cord outside, can prevent effectively that the conductor sinle silk from taking place to rock to lead to the conductor sinle silk to take place the twisting, influence photovoltaic cable's normal life.
(4) The waterproof filling layer is calcium silicate filling particles, the waterproof layer is made of a silica gel material, the silica gel material has waterproof performance and certain ductility, meanwhile, the waterproof filling layer made of calcium silicate is arranged in the gap outside the outer sheath, the overall hydrolysis resistance is improved, the cable is suitable for being used in an environment in contact with water for a long time, the service life of elements in the cable is prolonged, and the use safety performance of the cable is ensured.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a photovoltaic cable of the present invention;
FIG. 2 is a schematic perspective view of the winding device of the present invention;
FIG. 3 is a schematic front view of the winding device of the present invention;
FIG. 4 is a schematic top view of the winding device of the present invention;
FIG. 5 is a schematic structural view of a wire coil clamping and conveying assembly of the winding device;
FIG. 6 is a schematic structural view of a wire coil driving assembly of the winding device of the invention;
fig. 7 is a schematic structural view of a flat cable assembly of a winding device according to the present invention.
In the figure: 10. a guide wire; 11. a conductor core; 12. an insulating sleeve; 13. binding bands; 14. a filling layer; 15. an inner sheath; 16. a waterproof layer; 17. an outer sheath; 18. a waterproof filling layer; 19. an outer skin jacket; 2. a main body frame; 21. a top plate; 22. a wire holder; 23. a top support; 24. a wire coil bottom plate; 3. a wire assembly; 31. a lower lead frame; 32. a lower lead shaft; 33. an upper lead frame; 34. an upper wire guide shaft; 4. a wire locking assembly; 41. a wire locking bracket; 42. a wire locking box; 43. a wire locking cylinder; 44. a lifting seat; 45. a conduit; 5. a flat cable assembly; 51. a wire arranging cylinder; 52. a guide bar; 53. a telescopic rod; 54. a wire arranging seat; 6. a wire coil clamping and conveying assembly; 61. a disc feeding cylinder; 62. a disc feeding guide rod; 63. a sliding seat; 64. a chuck base; 65. a chuck assembly; 651. a chuck base; 652. a chuck cylinder; 653. a first clamp arm; 654. a second clamp arm; 655. a chuck; 656. a gear; 657. a drive link plate; 658. a drive rod; 7. a wire coil drive assembly; 71. a platen cylinder; 72. a platen support; 73. a platen guide; 74. rotating the disc; 75. a drive motor; 76. a driving pulley; 77. a belt; 78. a driven pulley; 79. the wire coil rotates the shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention relates to a water-resistant double-layer co-extrusion sheath solar photovoltaic cable, which comprises a guide wire 10, wherein conductor wire cores 11 are arranged on the periphery of the guide wire 10 in an annular array, and the guide wire 10 is used for guiding and arranging the conductor wire cores 11; the periphery of the conductor wire core 11 is wrapped with an insulating sleeve 12, and the insulating sleeve 12 is used for protecting the conductor wire core 11; an inner sheath 15 is sleeved outside the guide wire 10, and the guide wire 10 and the conductor wire core 11 are all positioned inside the inner sheath 15; inner sheath 15 periphery is provided with waterproof layer 16, and waterproof layer 16 periphery is provided with oversheath 17, can effectively improve the protective effect to inside conductor sinle silk 11 of photovoltaic cable through inside and outside double-deck sheath to waterproof layer 16's setting improves the water resistance of cable.
The inner sheath 15 is internally provided with a filling layer 14, and the filling layer 14 is used for pressing the conductor wire core 11 on the periphery of the guide wire 10.
The filling layer 14 is the mixture of insulating wear-resisting filler and thermal-insulated filler, insulating wear-resisting filler is irradiation crosslinked polyolefin material, insulating wear-resisting filler plays insulating effect to the conductor sinle silk 11 of photovoltaic cable, thermal-insulated filler is superfine glass cotton, a high temperature for isolated conductor sinle silk 11, the cotton coefficient of heat conductivity of superfine glass is little, can keep apart external high temperature effectively, make inside conductor sinle silk 11 of photovoltaic cable and insulating cover 12 keep normal temperature, avoid receiving high temperature postdecomposition.
The periphery of guide wire 10 is that annular array is provided with a plurality of bandages 13, and the quantity of bandage 13 is the same with conductor sinle silk 11's quantity, ligatures conductor sinle silk 11 through bandage 13, ensures that conductor sinle silk 11 keeps relatively stable in the guide wire 10 outside, can prevent effectively that conductor sinle silk 11 from taking place to rock to lead to conductor sinle silk 11 to take place the twist, influence photovoltaic cable's normal life.
An outer surface layer sheath 19 is arranged on the periphery of the outer sheath 17, and the outer surface layer sheath 19 is used for protecting the inner outer sheath 17.
The outer surface layer sheath 19 is a silane cross-linked polyethylene outer sheath.
The thickness of the outer surface layer sheath 19 is not less than 1.5mm, the density of the outer surface layer sheath 19 is 0.90g/ml to 0.97g/ml, and the outer surface layer sheath 19 is made of silane crosslinked polyethylene, so that the cable has the characteristics of flame retardance, water resistance, heat resistance and wear resistance, and can effectively ensure the protection effect on the interior of the optical cable.
A waterproof filling layer 18 is arranged between the outer surface layer sheath 19 and the outer sheath 17, and the waterproof filling layer 18 is used for playing a role of water resistance.
The waterproof filling layer 18 is calcium silicate filling particles, the waterproof layer 16 is made of a silica gel material, the silica gel material has waterproof performance and certain ductility, meanwhile, the waterproof filling layer 18 made of calcium silicate is arranged in the gap outside the outer sheath 17, the overall hydrolysis resistance is improved, the cable is suitable for being used in an environment in which the cable is in contact with water for a long time, the service life of elements in the cable is prolonged, the use safety performance of the cable is ensured, the silica gel and the calcium silicate are matched, the cable has good hydrolysis resistance, the cable can be protected from being easily cracked in the using process, the transmission rate of the cable is improved, the service life of the cable is prolonged, and the tensile strength and the tear resistance of the cable are improved.
Referring to fig. 2-4, in the production process of the photovoltaic cable of the present invention, a winding device is required to be used for winding, the winding device includes a main body frame 2, a top plate 21 is fixedly disposed at the upper end of the main body frame 2, a wire support 22 is fixedly disposed in the middle of the top plate 21, a flat cable assembly 5 is mounted on the side wall of the wire support 22, and the flat cable assembly 5 plays a role of flat cable when winding the cable; a top bracket 23 is fixedly arranged at the upper part of the wire bracket 22, and a wire coil driving assembly 7 is arranged on the top bracket 23; wire assembly 3 is installed to one side of roof 21, and drum bottom plate 24 is installed to the opposite side of roof 21, and drum clamp send subassembly 6 is all installed to drum bottom plate 24 both sides, is provided with locking wire subassembly 4 between wire assembly 3 and wire support 22.
The lead assembly 3 includes a lower lead frame 31, the lower lead frame 31 is fixedly mounted on the top plate 21, a lower lead shaft 32 is rotatably mounted on the lower lead frame 31, an upper lead frame 33 is fixedly arranged at the upper end of the lower lead frame 31, an upper lead shaft 34 is rotatably mounted on the upper lead frame 33, and a lead roller is fixedly mounted on the upper lead shaft 34 and the lower lead shaft 32.
The locking wire assembly 4 comprises a locking wire support 41, a locking wire box 42 is fixedly arranged on the locking wire support 41, a wire through hole is formed in the locking wire box 42, a locking wire cylinder 43 is fixedly arranged on the locking wire box 42, the output end of the locking wire cylinder 43 is used for pressing a cable in the wire through hole, a lifting seat 44 is arranged on the locking wire support 41, and a wire guide tube 45 is connected to the lifting seat 44.
Referring to fig. 7, the wire arranging assembly 5 includes a wire arranging cylinder 51 and two sets of guide rods 52 arranged side by side, the wire arranging cylinder 51 is fixedly mounted on the side wall of the wire support 22, the output end of the wire arranging cylinder 51 is connected with an expansion link 53, a wire arranging seat 54 is fixedly connected to the expansion link 53, the wire arranging seat 54 travels in a triangular shape, the wire guiding tube 45 is slidably arranged between the two sets of guide rods 52, the wire arranging cylinder 51 drives the wire arranging seat 54 to move horizontally, the wire guiding tube 45 is driven by the triangular support to move up and down and slide between the two sets of guide rods 52, so that the height of the cable is adjusted, and the cable is uniformly wound on the wire coil.
Referring to fig. 2 and 6, the wire coil driving assembly 7 includes a platen cylinder 71 and a driving motor 75, the platen cylinder 71 is fixedly mounted on the top bracket 23, a platen support 72 is connected to an output end of the platen cylinder 71, a rotating disc 74 is rotatably mounted at a lower end of the platen support 72, two sets of platen guide rods 73 are fixedly disposed at an upper end of the platen support 72, and the platen guide rods 73 are slidably connected to the top bracket 23 in a penetrating manner.
Driving motor 75 fixed mounting is on main part frame 2, driving motor 75's output fixed mounting has driving pulley 76, driving pulley 76 is connected with driven pulley 78 through the transmission of belt 77, driven pulley 78 fixed mounting is on drum rotation axis 79, drum rotation axis 79 rotates and installs on roof 21, drum rotation axis 79 links to each other with cable drum's bottom, it rotates to drive drum rotation axis 79 through driving motor 75, thereby drive cable drum and rotate, the realization is to the rolling of optical line cable.
Referring to fig. 5, the wire coil clamping and conveying assembly 6 includes a coil feeding cylinder 61 and a coil feeding guide rod 62, the coil feeding guide rod 62 and the coil feeding cylinder 61 are both fixedly mounted on the main body frame 2, a sliding seat 63 is slidably disposed on the coil feeding guide rod 62, an output end of the coil feeding cylinder 61 is fixedly connected with the sliding seat 63, a chuck base 64 is fixedly disposed on the sliding seat 63, and a chuck assembly 65 is mounted on the chuck base 64.
The chuck assembly 65 comprises a chuck seat 651, a first clamping arm 653 and a second clamping arm 654 are rotatably mounted on the chuck seat 651, a collet 655 is fixedly arranged at one end of the first clamping arm 653 and the second clamping arm 654, gears 656 are fixedly arranged at the other end of the first clamping arm 653 and the second clamping arm 654, the two groups of gears 656 are in meshing connection, a driving connecting plate 657 is fixedly arranged on the first clamping arm 653, a driving rod 658 is fixedly arranged on the driving connecting plate 657, a chuck cylinder 652 is mounted on the chuck seat 651, an output end of the chuck cylinder 652 is rotatably connected with the driving rod 658, the driving rod 658 and the driving connecting plate 657 are driven by the chuck cylinder 652 to move, the first clamping arm and the second clamping arm 654 are driven to rotate under the meshing connection of the two groups of gears 656, so as to drive the two groups of collets 655 to clamp or loosen the cable coil, when the collet 655 clamps the cable coil, the cable feeding cylinder 61 drives the sliding seat 63 and the chuck base 64 to horizontally slide, the clamping and conveying of the cable coil are realized.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (9)
1. The water-resistant double-layer co-extrusion sheath solar photovoltaic cable is characterized by comprising guide lines (10), wherein conductor wire cores (11) are arranged on the periphery of the guide lines (10) in an annular array, and the guide lines (10) are used for guiding and arranging the conductor wire cores (11);
the periphery of the conductor wire core (11) is wrapped with an insulation sleeve (12), and the insulation sleeve (12) is used for protecting the conductor wire core (11);
an inner sheath (15) is sleeved outside the guide wire (10), and the guide wire (10) and the conductor wire core (11) are all positioned inside the inner sheath (15);
the periphery of the inner sheath (15) is provided with a waterproof layer (16), and the periphery of the waterproof layer (16) is provided with an outer sheath (17).
2. The water-resistant double-layer co-extruded sheath solar photovoltaic cable according to claim 1, wherein a filling layer (14) is arranged inside the inner sheath (15), and the filling layer (14) is used for tightly pressing the conductor wire core (11) on the periphery of the guide wire (10).
3. The water-resistant double-layer co-extruded sheath solar photovoltaic cable according to claim 2, wherein the filling layer (14) is a mixture of an insulating wear-resistant filler and a heat-insulating filler, the insulating wear-resistant filler is a radiation cross-linked polyolefin material, and the heat-insulating filler is ultrafine glass wool.
4. The water-resistant double-layer co-extrusion sheathed solar photovoltaic cable according to claim 1, wherein the guide wire (10) is provided with a plurality of binding bands (13) in an annular array at the periphery thereof, and the number of the binding bands (13) is the same as that of the conductor wire cores (11).
5. The water-resistant double-layer co-extruded sheath solar photovoltaic cable according to claim 1, wherein an outer sheath (19) is arranged on the outer periphery of the outer sheath (17), and the outer sheath (19) is used for protecting the inner outer sheath (17).
6. The water-resistant double-layer co-extruded sheath solar photovoltaic cable as claimed in claim 5, wherein the outer sheath (19) is a silane cross-linked polyethylene outer sheath.
7. The water-resistant double-layer co-extruded sheath solar photovoltaic cable as claimed in claim 6, wherein the thickness of the outer surface sheath (19) is not less than 1.5mm, and the density of the outer surface sheath (19) is 0.90g/ml to 0.97 g/ml.
8. The water-resistant double-layer co-extrusion sheathed solar photovoltaic cable according to claim 5, wherein a waterproof filling layer (18) is arranged between the outer surface sheath (19) and the outer sheath (17), and the waterproof filling layer (18) is used for blocking water.
9. The water-resistant double-layer co-extrusion sheathed solar photovoltaic cable according to claim 8, wherein the waterproof filling layer (18) is calcium silicate filling particles, and the waterproof layer (16) is made of silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210673470.9A CN114937522B (en) | 2022-06-14 | 2022-06-14 | Waterproof double-layer co-extrusion sheath solar photovoltaic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN114937522B (en) | 2023-05-05 |
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