CN113725676A

CN113725676A - Wire harness assembly for wind turbine generator and preparation method thereof

Info

Publication number: CN113725676A
Application number: CN202111098306.1A
Authority: CN
Inventors: 曹西伟; 王新国; 吴志勇; 陈启超; 马振清; 马文博; 张鹏辉
Original assignee: Jiangsu Hengtong Power Cable Co Ltd
Current assignee: Jiangsu Hengtong Power Cable Co Ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2021-11-30

Abstract

The embodiment of the invention discloses a wire harness assembly for a wind turbine generator and a preparation method thereof, wherein the wire harness assembly comprises an anti-torsion cable structure, a separable plug-pull structure and a grounding terminal; the anti-torsion cable structure comprises a cable outer sheath, at least one grounding wire core and at least one main wire core, wherein the grounding wire core comprises a first grounding wire core subsection and a second grounding wire core subsection which are mutually connected, and the main wire core comprises a first main wire core subsection and a second main wire core subsection which are mutually connected; the separable plugging structure comprises a wiring terminal, a cable adapting pipe and a separable plugging structure main body; the ground terminal is crimped on a side of the second ground wire core subsection remote from the first ground wire core subsection. According to the invention, the harness assembly for the wind turbine generator is adopted, so that the matching use of the cable and the cable terminal accessory is realized, and the stable performance of the harness assembly for the wind turbine generator is effectively ensured.

Description

Wire harness assembly for wind turbine generator and preparation method thereof

Technical Field

The embodiment of the invention relates to the technical field of cables, in particular to a wire harness assembly for a wind turbine generator and a preparation method of the wire harness assembly.

Background

Wind power generation is an environment-friendly power generation project and is widely popularized and used in recent years. A large amount of infrastructure including fan input is needed to be carried out in the early stage of wind power generation, and the wind power cable which is an essential element for application in the wind power generation link is used, and the matched use amount is comprehensively popularized and used along with the continuous development of wind power generation projects.

At present, most suppliers in the industry deliver products to wind turbine complete machine suppliers in a mode of independently supplying wind energy medium-voltage anti-torsion cables and cable terminal accessories, and manufacturing and installing cable components are carried out on the site of a wind turbine installation project. Due to the influence of severe working conditions and non-standard manufacturing methods on the site, the medium-voltage cable harness assembly often breaks down, burns out the cable and even causes fire. The specific technical problems are summarized as follows:

(1) the wind energy medium-voltage anti-torsion cable and the T-shaped terminal joint are assembled on a project site, the site working condition environment is severe, particularly the offshore environment humidity is high, the salt spray corrosion is strong, the influence of objective conditions is limited on the manufacturing of the medium-voltage cable assembly, and the operation fault of the medium-voltage cable assembly is easily caused.

(2) The work of assembling the medium voltage wire harness assembly on the project site is generally completed by a third party construction team inquired by a proprietor or a blower complete machine businessman, the manufacturing levels of the construction teams are uneven, the random operation flow is adopted, the manufacturing error of the medium voltage wire harness assembly or the manufacturing effect of the medium voltage wire harness assembly can be easily caused, the cable joint can break down, and the joint can be exploded.

(3) The medium-voltage wire harness assembly is manufactured on site, and even if the assembly is manufactured, systematic finished product tests, namely a medium-voltage wire harness assembly voltage withstand test and a partial discharge test, are not performed, so that the electrical safety performance of the wire harness assembly cannot be guaranteed.

Therefore, how to ensure the stable performance of the wire harness assembly for the wind turbine generator becomes a problem to be solved urgently.

Disclosure of Invention

In view of the above, in one aspect, an embodiment of the present invention provides a wire harness assembly for a wind turbine, which is characterized by including a torsion-resistant cable structure, a separable plug structure, and a ground terminal;

the anti-torsion cable structure comprises a cable outer sheath, at least one grounding wire core and at least one main wire core, wherein the grounding wire core comprises a first grounding wire core subsection and a second grounding wire core subsection which are mutually connected, the main wire core comprises a first main wire core subsection and a second main wire core subsection which are mutually connected, the first grounding wire core subsection and the first main wire core subsection are coated by the cable outer sheath, and the second grounding wire core subsection and the second main wire core subsection are exposed out of the cable outer sheath;

the grounding wire core comprises a grounding wire core conductor and a semi-conductive protective layer wound around the grounding wire core conductor, wherein a fracture is formed on part of the semi-conductive protective layer of the second grounding wire core subsection, and the fracture exposes the grounding wire core conductor;

a second main core subsection, which includes, in order, a first sub-subsection, a second sub-subsection, and a third sub-subsection, in a direction in which the second main core subsection points toward the first main core subsection; the first sub-subsection includes a main core conductor, the second sub-subsection includes the main core conductor and a core insulating layer wound around the main core conductor, and the third sub-subsection includes the main core conductor, a core insulating layer wound around the main core conductor, and a semiconductive layer wound around the core insulating layer;

the anti-torsion cable structure further comprises a conductive mesh belt and a furling structure, the conductive mesh belt is wound around the main wire core and the grounding wire core conductor of the grounding wire core corresponding to the main wire core, and the furling structure furls the main wire core and the grounding wire core;

the separable plugging structure comprises a wiring terminal, a cable adapting pipe and a separable plugging structure main body, wherein the wiring terminal is sleeved on the first sub-subsection, the cable adapting pipe is sleeved on the second sub-subsection and a part of the third sub-subsection, and the separable plugging structure main body is sleeved on the wiring terminal and the cable adapting pipe;

the ground terminal is crimped on a side of the second ground wire core subsection remote from the first ground wire core subsection.

On the other hand, the embodiment of the invention provides a preparation method of a wire harness assembly for a wind turbine generator, which is characterized by comprising the following steps:

stripping off the semiconductive protective layer at the position of the subsection part of the second grounding wire core to form a fracture so as to expose the conductor of the grounding wire core;

winding the main wire core and the grounding wire core conductor of the grounding wire core corresponding to the main wire core by adopting a conductive mesh belt;

a furling structure is adopted to furl the main wire core and the grounding wire core;

crimping a ground terminal on a side of the second ground wire core subsection remote from the first ground wire core subsection;

sleeving the cable adapter pipe on the second sub-branch and part of the third sub-branch;

a wiring terminal is sleeved on the first sub-part;

the cable adapter tube and the wiring terminal are sleeved with a separable plug structure main body.

According to the wiring harness assembly for the wind turbine generator, the wiring terminal and the cable adapting pipe are respectively sleeved on the corresponding main wire core subsections, the separable plug-pull structure main body is sleeved on the wiring terminal and the cable adapting pipe, the grounding terminal is pressed on the corresponding grounding wire core subsection, and the anti-torsion cable structure, the separable plug-pull structure and the grounding terminal are combined, so that the matching use of a cable and a cable terminal accessory is realized, the problems that the wiring harness assembly manufactured on site is influenced by working condition environment and has irregular operation and systematic test can not be performed are solved, and the stable performance of the wiring harness assembly for the wind turbine generator is ensured.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 is a schematic structural diagram of a torsion resistant cable structure of a harness assembly for a wind turbine generator according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a detachable plug-pull structure of a harness assembly for a wind turbine provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a ground terminal of a harness assembly for a wind turbine provided in an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view illustrating a structure of a torsion resistant cable of the wire harness assembly for a wind turbine generator according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a fracture, a first tip, a first root, a second tip, and a second root provided by an embodiment of the invention;

fig. 6 is a schematic structural diagram of a conductive mesh belt and a furled structure provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a cladding layer in a furled structure according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a third furled layer in the furled structure according to the embodiment of the present invention;

fig. 9 is a schematic structural view of a compressed multi-finger sleeve and a crimping ground terminal in a furled structure according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of a marker band and second and third sub-sections according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of the waterproof daub according to the embodiment of the present invention;

FIG. 12 is a schematic structural view of a splicing tape provided in accordance with an embodiment of the present invention;

FIG. 13 is a schematic structural view of a stress control mastic and a first sub-section according to an embodiment of the invention;

fig. 14 is a flowchart of a method for manufacturing a wire harness assembly for a wind turbine generator according to an embodiment of the present invention;

fig. 15 is a schematic structural view of a cable adapter sleeve according to an embodiment of the present invention;

fig. 16 is a schematic structural view of a terminal housing according to an embodiment of the present invention;

fig. 17 is a schematic structural view of a detachable plug structure body according to an embodiment of the present invention;

fig. 18 is a flowchart of another method for manufacturing a harness assembly for a wind turbine generator according to an embodiment of the present invention;

fig. 19 is a schematic structural diagram of a conductive mesh tape on a main core according to an embodiment of the present invention;

fig. 20 is a schematic structural diagram of a conductive mesh tape on a grounding conductor of a main wire core and a grounding wire core corresponding to the main wire core according to an embodiment of the present invention.

Description of the reference numerals

100-torsion resistant cable construction; 101-ground core; 101-1-ground core; 101-2-ground core; 101-3-ground core; 1011-a second ground wire core subsection; 102-the main core; 102-1-the primary core; 102-2-the main core; 102-3-the primary core; 1021-a second main core subsection; 1021 a-a first subsection; 1021 b-a second subsection; 1021 c-the third subsection; 50-fracture; 51-a first end; 52-first root; 53-a second end; 54-a second root; 60-a conductive mesh belt; 610-a furled configuration; 611-a coating layer; 612-a third furled layer; 613-heat-shrinkable multi-finger sleeve; 110-sign tape; 111-waterproof mastic; 112-connecting tape;

113-stress control mastic; 114-tilt angle; 115-adhesive tape; 116-adhesive tape; 200-a separable plug structure; 201-a separable plug structure main body; 202-an inner shield layer; 203-outer shielding layer; 204-an insulating layer; 205-type C interface; 206-terminal block; 207-insulating plug; 208-cable adapting pipe; 209-a conductive cover; 210-a bolt; 211-ground line; 300-ground terminal; 400-cross section of the torsion resistant cable structure 100; 401 — main core conductor; 402-main core semiconductive tape; 403-a conductor shield layer; 404-core insulation layer; 405-a semiconducting layer; 406-a semiconductive fill layer; 407-wrapping tape; 408-an inner sheath; 409-an outer sheath; 410-ground wire core conductor; 411-a semiconducting protective layer; 412-semiconductive coating.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be fully described by the detailed description with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without inventive efforts fall within the scope of the present invention.

The embodiment of the invention provides a wire harness assembly for a wind turbine generator. Fig. 1 is a schematic structural diagram of a torsion resistant cable structure of a harness assembly for a wind turbine generator according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a detachable plug-pull structure of a harness assembly for a wind turbine provided in an embodiment of the present invention; fig. 3 is a schematic structural diagram of a ground terminal of a harness assembly for a wind turbine provided in an embodiment of the present invention; FIG. 4 is a schematic cross-sectional view illustrating a structure of a torsion resistant cable of the wire harness assembly for a wind turbine generator according to an embodiment of the present invention; FIG. 5 is a schematic structural view of a fracture, a first tip, a first root, a second tip, and a second root provided by an embodiment of the invention; fig. 6 is a schematic structural diagram of a conductive mesh belt and a furled structure provided by an embodiment of the present invention; FIG. 7 is a schematic structural diagram of a cladding layer in a furled structure according to an embodiment of the present invention; fig. 8 is a schematic structural diagram of a third furled layer in the furled structure according to the embodiment of the present invention; fig. 9 is a schematic structural view of a compressed multi-finger sleeve and a crimping ground terminal in a furled structure according to an embodiment of the present invention; FIG. 10 is a schematic structural view of a marker band and second and third sub-sections according to an embodiment of the present invention; fig. 11 is a schematic structural diagram of the waterproof daub according to the embodiment of the present invention; FIG. 12 is a schematic structural view of a splicing tape provided in accordance with an embodiment of the present invention; fig. 13 is a schematic structural diagram of a stress control mastic and a first sub-section according to an embodiment of the invention.

Referring to fig. 1 to 13, a harness assembly for a wind turbine generator exemplarily includes a torsion resistant cable structure 100, a separable inserting and pulling structure 200, and a ground terminal 300;

the anti-twisting cable structure 100 comprises a cable outer sheath 409, at least one grounding wire core 101 and at least one main wire core 102, wherein the grounding wire core 101 comprises a first grounding wire core subsection and a second grounding wire core subsection 1011 which are connected with each other, the main wire core 102 comprises a first main wire core subsection and a second main wire core subsection 1021 which are connected with each other, the first grounding wire core subsection and the first main wire core subsection are coated by the cable outer sheath 409, and the second grounding wire core subsection 1011 and the second main wire core subsection 1021 are exposed out of the cable outer sheath 409;

the ground wire core 102 comprises a ground wire core conductor 410 and a semi-conductive protective layer 411 wound around the ground wire core conductor 410, a fracture 50 is formed on part of the semi-conductive protective layer 411 of the second ground wire core subsection 1011, and the fracture 50 exposes the ground wire core conductor 410;

the second main core subsection 1021 comprises, in order along the direction that the second main core subsection points towards the first main core subsection, a first subsection 1021a, a second subsection 1021b and a third subsection 1021 c; the first subsection 1021a includes a main core conductor 401, the second subsection 1021b includes the main core conductor 401 and a core insulation layer 404 wrapped around the main core conductor, and the third subsection 1021c includes the main core conductor 401, the core insulation layer 404 wrapped around the main core conductor, and a semiconductive layer 405 wrapped around the core insulation layer;

the anti-torsion cable structure 100 further comprises a conductive mesh belt 60 and a folding structure 610, wherein the conductive mesh belt 60 is wound around the main wire core 102-1 and the grounding wire core conductor 410 of the grounding wire core 101-1 corresponding to the main wire core, and the folding structure 610 folds the main wire core 102-1 and the grounding wire core 101-1;

the separable plugging structure 200 comprises a connection terminal 206, a cable adapting pipe 208 and a separable plugging structure main body 201, wherein the connection terminal 206 is sleeved on the first subsection 1021a, the cable adapting pipe 208 is sleeved on the second subsection 1021b and a part of the third subsection 1021c, and the separable plugging structure main body 201 is sleeved on the connection terminal 206 and the cable adapting pipe 208;

the ground terminal 300 is crimped on the side of the second ground wire core subsection 1011 remote from the first ground wire core subsection.

Referring to fig. 1 and 4, exemplarily, taking an example that six cores are included in the anti-twisting cable structure, the anti-twisting cable structure 100 includes an outer cable sheath 409, three ground wire cores 101-1, 101-2 and 101-3 respectively, and three main wire cores 102-1, 102-2 and 102-3 respectively, wherein the main wire cores include a main wire core conductor 401, a main wire core semi-conductive tape 402, a conductor shielding layer 403, a wire core insulating layer 404 and a semi-conductive layer 405, the ground wire core includes a ground wire core conductor 410, a semi-conductive protective layer 411 and a semi-conductive covering layer 412, and the anti-twisting cable structure 100 further includes a semi-conductive filling layer 406 wrapped around 407, an inner sheath 408 and an outer sheath 409 filled between the main wire cores of the ground wire cores and between the main wire cores and the main wire cores. Optionally, the main core conductor 401 adopts a 5 th round stranded soft copper conductor specified by the GB/T3956 standard, and burrs, sharp edges and raised or broken single wires of the conductor with smooth and undamaged insulation are adopted; the main core semi-conductive belt 402 is wrapped on the main core conductor 401 by a semi-conductive nylon belt; the conductor shielding layer 403 adopts a semi-conductive inner shielding material; the core insulation layer 404 is made of ultra-clean ethylene propylene rubber insulation material; the semi-conductive layer 405 adopts a strippable semi-conductive outer screen material; the semi-conductive filling layer 406 is filled between the main wire cores of the grounding wire core and between the main wire cores and the main wire cores, and plays a role in electrical connection between the main wire cores; after the main wire core and the grounding wire core are cabled, a wrapping tape 407 is adopted for winding and tightening; the inner sheath 408 is made of ethylene propylene rubber material, fills the gap between the main wire core and the outer layer of the grounding wire core, plays a role in mechanical protection of the inner wire core, and adopts a double-layer co-extrusion method with the outer sheath 409; the outer sheath 409 is made of halogen-free low-smoke rubber sheath material and is closely adhered with the inner sheath by adopting a double-layer co-extrusion method; the grounding wire core conductor 410 adopts a 5 th round stranded soft copper conductor specified by GB/T3956 standard, and burrs, sharp edges and raised or broken single wires of the conductor surface are smooth and have no damage to insulation; the semiconductive protection layer 411 is used for covering the grounding wire core conductor 410 by using a semiconductive nylon tape; the semi-conductive coating 412 is extruded on the outer surface of the semi-conductive protective layer 411 to function as an electrical connection between the main core conductor 401 and the ground core conductor 410.

Referring to fig. 2, the separable pluggable structure 200 further includes an inner shield layer 202, an outer shield layer 203, an insulating layer 204 poured between the inner shield layer 202 and the outer shield layer 203, a C-shaped interface 205, an insulating plug 207, a conductive cap 209, a bolt 210, and a ground wire 211. Optionally, the inner shielding layer 202 and the outer shielding layer 203 both use conductive ethylene propylene diene monomer, the insulating layer 204 uses ethylene propylene diene monomer, and the conductive cover 209 uses a rubber cover.

For the purpose of describing the structure of the ground core and the main core in detail, fig. 5 and 6 exemplify the structure of the anti-twist cable including one main core 102-1 and one ground core 101-1. Referring to fig. 5 and 6, according to actual requirements, a certain length of the outer sheath of the cable may be cut off, and a certain length of the outer sheath of the cable, i.e., the outer sheath 409 of the cable, is retained. The second grounding wire core subsection 1011 and the second main wire core subsection 1021 are exposed outside the cable outer sheath 409, a fracture 50 is formed at the root of the second grounding wire core subsection 1011, namely, a part close to the first grounding wire core subsection, the fracture 50 exposes the grounding wire core conductor 410, the conductive mesh belt 60 is adopted to wind the main wire core 102-1 and the grounding wire core conductor 410 of the grounding wire core 101-1 corresponding to the main wire core, so that the conductive mesh belt 60 is ensured to be in close and good contact with the grounding wire core conductor 410, the conductive mesh belt 60 can be further tightened by adopting a metal wire, and the good contact between the conductive mesh belt 60 and the grounding wire core conductor 410 is ensured. Specifically, the conductive mesh belt 60 may be a copper mesh belt, and the metal wire may be a tinned copper wire, which is not limited in the embodiment of the present invention, and only the good contact between the conductive mesh belt 60 and the ground wire core conductor 410 is required.

Further, as shown in fig. 6, in order to ensure the structural stability of the anti-twisting cable structure 100, a furling structure 610 may be further used to furl the main core 102-1 and the ground core 101-1, so as to ensure the structural stability of the anti-twisting cable structure 100.

Further, as shown in fig. 13, in order to ensure good contact between the anti-torque cable structure 100 and the separable plug structure 200, the structure of the second main core section 1021 may be adjusted. Specifically, the second main core subsection 1021 includes, in order, a first subsection 1021a, a second subsection 1021b, and a third subsection 1021 c; the first subsection 1021a includes a main core conductor 401, and the wire connection terminal 206 is sleeved on the first subsection 1021a to ensure good electrical connection between the wire connection terminal 206 and the main core conductor 401; the second subsection 1021b comprises a main core conductor 401 and a core insulation layer 404 wound around the main core conductor, the third subsection 1021c comprises the main core conductor 401, the core insulation layer 404 wound around the main core conductor and a semi-conductive layer 405 wound around the core insulation layer, the cable adapting pipe 208 is sleeved on the second subsection 1021b and a part of the third subsection 1021c, the separable plug structure main body 201 is sleeved on the wiring terminal 206 and the cable adapting pipe 208, and good contact between the second main core 1021 subsection 1021 and the separable plug structure 200 is guaranteed.

Further, as shown in fig. 9, the ground terminal 300 is crimped on the side of the second ground wire core subsection 1011 away from the first ground wire core subsection, thus achieving the electrical connection between the ground wire core 101-1 and the ground terminal 300.

In summary, the harness assembly for the wind turbine generator provided by the embodiment of the invention ensures that the structure of the anti-torsion cable is firm and stable through reasonable arrangement of the anti-torsion cable structure, the grounding wire core and the main wire core, and simultaneously ensures that the electric connection between the grounding wire core and the grounding terminal is in good contact connection between the main wire core and the separable plug-in structure, thereby realizing the matched use of the cable and the cable terminal accessory, solving the problems that the on-site manufactured harness assembly is influenced by the working condition environment and is not subjected to the irregular operation and the systematic test cannot be performed, and ensuring the stable performance of the harness assembly for the wind turbine generator.

As a possible embodiment, with continued reference to fig. 5, the second ground wire core subsection 1011 includes a first end 51 distal from the first ground wire core subsection and a first root 52 proximal to the first ground wire core subsection; the second main core subsection 1021 includes a second end portion 53 distal from the first main core subsection and a second root portion 54 proximal to the first main core subsection; a fracture 50 is formed at the position of the first root, and the length L1 of the fracture 50 is more than or equal to 15mm and less than or equal to L1 and less than or equal to 25 mm; referring to fig. 6, the conductive mesh tape 60 is wound on the main core 102-1 and the ground core conductor (not shown) of the ground core 101-1 corresponding to the main core in a 40% -60% lap joint manner from a predetermined position of the second end 53.

Optionally, the conductive mesh belt 60 is a copper mesh belt, and the preset position is a position which is 255mm away from the second end 53, wherein the 40% -60% overlapping mode means that the subsequent conductive mesh belt overlaps the previous conductive mesh belt and covers 40% -60% of the area of the previous conductive mesh belt in two adjacent layers of the wound conductive mesh belt.

To facilitate the detailed description of the winding pattern and location of the conductive mesh tape, a first end 51 distal from the first ground wire core segment and a first root 52 proximal to the first ground wire core segment, a second end 53 distal from the first main wire core segment and a second root 54 proximal to the first main wire core segment are shown; the copper mesh belt is adopted as the conductive mesh belt, so that external electromagnetic interference can be effectively shielded; the length L1 of the fracture 50 meets the condition that the L1 is not less than 15mm and not more than 25mm, so that good contact between the conductive mesh belt 60 and the conductor of the grounding wire core can be ensured; according to the actual requirement, the preset position is 245-255mm away from the second end 53, so that the conductive mesh belt 60 wound on the main wire core 102-1 can be ensured to play a shielding role; by adopting a 40-60% lap joint mode, the conductive mesh belt 60 on the main wire core 102-1 can be effectively connected with the conductive mesh belt 60 on the grounding wire core conductor, and the use of the conductive mesh belt is saved.

For the convenience of describing the gathering structure of the grounding wire core and the main wire core in detail, fig. 6, 7, 8 and 9 exemplify the torsion resistant cable structure including one main wire core 102-1 and one grounding wire core 101-1. Referring to fig. 6, 7, 8 and 9, furled structure 610 comprises a cover 611, a first furled layer (not shown), a second furled layer (not shown), a filler layer (not shown), a third furled layer 612, a heat-shrinkable multi-finger sleeve 613 and a heat-shrinkable tube (not shown); the coating layer 611 coats the conductive mesh belt 60; a first furled layer (not shown) coats the coating 611 at a first root location 52 and a second root location 54; the second furled layer (not shown) wraps the first furled layer (not shown); a filling layer (not shown) coats the second furled layer (not shown); the third gathered layer 612 wraps the filling layer (not shown); the heat-shrinkable multi-finger sleeve 613 is sleeved on the cable outer sheath 409, the grounding wire core 101-1 and the main wire core 102-1, and the index division quantity of the heat-shrinkable multi-finger sleeve 613 is equal to the sum of the number of the grounding wire cores and the number of the main wire cores; a heat shrink tube (not shown) is fitted over the ground core 101-1 and the cladding 611.

Optionally, the coating layer, the first furling layer, the second furling layer and the third furling layer are made of PVC, and the filling layer is made of filling daub. That is, the conductive mesh belt 60 is coated with the coating layer PVC, the first furled layer PVC is coated with the coating layer PVC at the first root position 52 and the second root position 54, the second furled layer PVC is coated with the first furled layer PVC, the filling cement is coated with the second furled layer PVC and filled to be flush with the outer sheath, the third furled layer PVC is coated with the filling cement, the heat-shrinkable multi-finger sleeve 613 is sleeved on the cable outer sheath 409, the grounding wire core 101-1 and the main wire core 102-1, and the index value of the heat-shrinkable multi-finger sleeve 613 is equal to the sum of the number of the grounding wire cores and the number of the main wire cores; the heat shrink tube is sleeved on the grounding wire core 101-1 and the coating layer 611. In actual operation, a proper heat-shrinkable multi-finger sleeve is selected according to the sum of the number of the grounding wire cores and the number of the main wire cores.

The coating layer is a furling layer for furling the conductive mesh belt, the first furling layer is a furling layer for furling the coating layer at a first root position and a second root position, the second furling layer is a furling layer for furling the first furling layer, the filling layer is a furling layer for furling the second furling layer, and the third furling layer is a furling layer for furling the filling layer.

The coating layer 611 coats the conductive mesh belt 60 with PVC, so that the conductive mesh belt 60 can be effectively protected and the conductive mesh belt 60 is fastened; the first furling layer and the second furling layer adopt PVC, so that the connection part of the conductive mesh belt 60 on the main wire core 102-1 and the conductive mesh belt 60 on the grounding wire core conductor of the grounding wire core 101-1 corresponding to the main wire core can be protected, and the furling of the first root part position 52 and the second root part position 54 is realized; the filling daub is coated outside the second furling layer to furl the second furling layer and further enhance furling and protection of the first root position 52 and the second root position 54, and the filling daub is filled to be flush with the outer sheath 409, so that the heat-shrinkable multi-finger sleeve 613 can be ensured to be in close contact with the cable when the heat-shrinkable multi-finger sleeve 613 is subsequently sleeved, and the structure is firm and stable; the third furling layer is formed by covering the filling layer with PVC and can fasten the filling layer and furl the filling layer; the heat-shrinkable multi-finger sleeve 613 is sleeved on the cable outer sheath 409, the grounding wire core 101-1 and the main wire core 102-1, can fold and fasten the root of the cable and plays a role in corrosion prevention, and separates the grounding wire core 101-1 from the main wire core 102-1 through a multi-finger structure, so that the main wire core 102-1 can be conveniently subjected to structural adjustment and sleeved with the wiring terminal 206, the cable adapting pipe 208 and the separable plugging structure main body 201; the heat shrink tube is sleeved on the grounding wire core 101-1 and the coating layer 611, so that the grounding wire core 101-1 and the coating layer 611 can be effectively protected, and the effects of insulation, sealing and protection are achieved.

To facilitate the detailed description of the structural adjustment of the main core, fig. 10, 11, 12 and 13 exemplify one main core 102-1 in the torsion resistant cable structure.

Referring to fig. 13, the wire harness assembly for a wind turbine further includes waterproof mastic 111, connection tape 112, and stress control mastic 113; referring to fig. 10, the third subsection 1021c is exposed outside of a heat shrink tube (not shown), the second subsection 1021b is exposed outside of the third subsection 1021c, and the marker band 110 is disposed on the heat shrink tube; referring to fig. 11, the waterproof mastic 111 is provided on the first main core section on a side thereof adjacent to the third subsection 1021 c; referring to fig. 12, the connection tape 112 is wound at the junction of the third subsection 1021c and the second main core subsection, and the connection tape 112 overlaps the waterproof mastic 111; referring to FIG. 13, the stress control mastic 113 is provided at the interface of the second subsection 1021b and the third subsection 1021 c; the core insulation layer 404 of the second subsection 1021b on the side adjacent to the first subsection 1021a is formed with a bevel angle 114; the tape 115 is wrapped around the end of the main core conductor 401 of the first subsection 1021 a.

The first subsection 1021a comprises a main core conductor 401, the second subsection 1021b comprises the main core conductor 401 and a core insulating layer 404 wound around the main core conductor, the third subsection 1021c comprises the main core conductor 401, the core insulating layer 404 wound around the main core conductor and a semi-conducting layer 405 wound around the core insulating layer, and the marker tape 110 is used for determining the sleeving position of the cable adapting pipe 208 when the cable adapting pipe 208 is sleeved subsequently; the waterproof daub 111 has the advantages of water resistance, moisture resistance, chemical corrosion resistance and the like, and can effectively protect the main wire core to play a role in waterproof sealing; the connecting adhesive tape 112 is used for protecting the junction position of the third subsection 1021c and the second main wire core subsection, and the waterproof daub 111 at the lap joint part can achieve the function of fixing the waterproof daub; the stress control mastic 113 is used to protect the interface between the second subsection 1021b and the third subsection 1021c, and serves as a waterproof seal; the core insulation layer 404 on the second subsection 1021b adjacent to the first subsection 1021a forms an angle of inclination 114 that protects the main core conductor 401 during subsequent installation of the cable adapter tube 208; the tape 115 is used to protect the end of the main core conductor 401 of the first subsection 1021a when the cable adapter tube 208 is installed.

Referring to FIG. 13, the length L2 of the first subsection 1021a and the length L3 of the wire connection terminal 206 satisfy 5mm ≦ L2-L3 ≦ 15 mm.

When the length L2 of the first subsection 1021a and the length L3 of the connecting terminal 206 satisfy the condition that L2 is larger than or equal to 5mm and L3 is smaller than or equal to 15mm, the main core conductor 401 of the first subsection 1021a can be abutted against the bottom of the crimping hole of the connecting terminal 206 when the connecting terminal 206 is crimped subsequently, and good contact between the main core conductor 401 and the connecting terminal 206 is ensured.

According to the wire harness assembly for the wind turbine generator, the anti-torsion cable structure, the grounding wire core and the main wire core are reasonably arranged, the firm and stable structure of the anti-torsion cable is guaranteed, meanwhile, the electric connection between the grounding wire core and the grounding terminal is guaranteed to be in good contact connection between the main wire core and the separable plug-in structure, the matched use of a cable and a cable terminal accessory is realized, the problems that the wire harness assembly manufactured on site is influenced by the working condition environment, the existing irregular operation is caused, and the systematic test cannot be performed are solved, and the stable performance of the wire harness assembly for the wind turbine generator is guaranteed.

Based on the same inventive concept, an embodiment of the present invention further provides a method for manufacturing a wire harness assembly for a wind turbine generator, which is used for manufacturing the wire harness assembly for a wind turbine generator of the above embodiment, and fig. 14 is a flowchart of the method for manufacturing the wire harness assembly for a wind turbine generator according to the embodiment of the present invention; fig. 15 is a schematic structural view of a cable adapter sleeve according to an embodiment of the present invention; fig. 16 is a schematic structural view of a terminal housing according to an embodiment of the present invention; fig. 17 is a schematic structural view of a detachable plug structure body according to an embodiment of the present invention.

Referring to fig. 14, the method specifically includes the following steps:

s110, stripping off the semi-conductive protective layer at the position of the subsection part of the second grounding wire core to form a fracture, and exposing the conductor of the grounding wire core.

Continuing with reference to fig. 5, fig. 5 illustratively illustrates a twist resistant cable construction including a primary core 102-1 and a ground core 101-1. The second ground core segment 1011 is exposed outside the cable sheath 409, and the fracture 50 is formed by stripping off part of the semi-conductive protective layer 411 of the second ground core segment 1011 to expose the ground core conductor 410. Optionally, the length L1 of the fracture 50 satisfies that L1 is equal to or less than 15mm and equal to or less than 25mm, in practical operation, the torsion-resistant cable structure includes three grounding wire cores and three main wire cores, and the three grounding wire cores are all processed according to the above steps.

The length L1 of the fracture 50 meets the condition that the L1 is not less than 15mm and not more than 25mm, so that good contact between the conductive mesh belt 60 and the conductor of the grounding wire core can be ensured. And S120, winding the main wire core and a grounding wire core conductor of the grounding wire core corresponding to the main wire core by adopting a conductive mesh belt.

Continuing with reference to FIG. 6, FIG. 6 illustratively illustrates a twist resistant cable construction including a primary core 102-1 and a ground core 101-1. And winding the main wire core 102-1 and a grounding wire core conductor (not shown) of the grounding wire core 101-1 corresponding to the main wire core 102-1 by using a conductive mesh belt 60, wherein the grounding wire core conductor is the grounding wire core conductor in the step S110, and optionally, the conductive mesh belt is a copper mesh belt and plays a role in shielding an electric field. In actual operation, including three earth core and three main core in the anti-torque cable structure, divide into three groups with six sinle silks, each group includes a main core and the earth connection core that corresponds with the main core, adopts the earth connection core conductor of every main core of a set of and the earth connection core that corresponds with the main core of electrically conductive guipure winding.

The copper mesh belt is adopted as the conductive mesh belt to effectively shield external electromagnetic interference, and the conductive mesh belt is adopted to wind the main wire core and the grounding wire core conductor of the grounding wire core corresponding to the main wire core, so that the conductive mesh belt 60 on the main wire core 102-1 can be effectively connected with the conductive mesh belt 60 on the grounding wire core conductor.

And S130, adopting a furling structure to furl the main wire core and the grounding wire core.

Continuing with reference to FIG. 6, FIG. 6 illustratively illustrates a twist resistant cable construction including a primary core 102-1 and a ground core 101-1. The main wire core 102-1 and the grounding wire core 101-1 are folded by a folding structure 610. In actual operation, including three earth core and three main core in the anti-torque cable structure, divide into three groups with six sinle silks, each group includes a main sinle silk and the earth core that corresponds with the main sinle silk, specifically, draws in at first to the electrically conductive guipure 60 of each group, secondly draws in first root 52 and the second root 54 of three groups, draws in at last to three main sinle silks and three earth core.

The folding structure 610 is used for folding the main wire core 102-1 and the grounding wire core 101-1, so as to ensure that the structure of the anti-torsion cable structure 100 is firm and stable.

And S140, pressing the grounding terminal on the side of the second grounding wire core subsection far away from the first grounding wire core subsection.

Continuing with reference to fig. 9, fig. 9 illustratively illustrates a twist resistant cable construction including a primary core 102-1 and a ground core 101-1. The ground terminal 300 is crimped to the side of the second ground wire core section 1011 remote from the first ground wire core section, specifically, the ground wire core 410 is stripped from the side of the second ground wire core section 1011 remote from the first ground wire core section, and the ground terminal 300 is crimped to the ground wire core 410. In actual operation, including three earth core and three main core in the antitorque cable structure, all crimping ground terminal in one side that first earth core subsection was kept away from to second earth core subsection 1011 of three earth core, the completion is to the whole course of handling of earth core.

The side of the second ground wire core subsection 1011 away from the first ground wire core subsection is crimped to the ground terminal 300, so that the electrical connection between the ground wire core 101-1 and the ground terminal 300 can be realized.

S150, sleeving a cable adapter pipe on the second sub-unit and a part of the third sub-unit.

To facilitate the detailed description of the sleeving structure of the cable adapter tube, fig. 15 exemplifies one main core 102-1 in the torsion resistant cable structure. Referring to fig. 15, the second subsection 1021b includes a main core conductor 401 and a core insulation layer 404 wound around the main core conductor, the third subsection 1021c includes a main core conductor 401, a core insulation layer 404 wound around the main core conductor and a semi-conductive layer 405 wound around the core insulation layer, a cable adapter tube 208 is sleeved on the second subsection 1021b and a part of the third subsection 1021c, optionally, before the cable adapter tube 208 is sleeved, the inner surfaces of the core insulation layer 404 and the cable adapter tube 208 are coated with a lubricating silicone grease, and then the cable adapter tube is sleeved on the cable until the cable adapter tube is flush with the marker band 110. In actual operation, the anti-torsion cable structure comprises three grounding wire cores and three main wire cores, and the three main wire cores are all sleeved with the cable adaptive pipe according to the steps. And S160, sleeving a wiring terminal on the first sub-part.

To facilitate the detailed description of the sleeving structure of the wire connecting terminal, fig. 16 exemplifies one main wire core 102-1 in the torsion resistant cable structure. Referring to fig. 15 and 16, the first subsection 1021a includes a main core conductor 401, before the terminal 206 is fitted, the adhesive tape 115 wound around the end of the main core conductor 401 of the first subsection 1021a is removed, the terminal 206 is fitted over the first subsection 1021a including the main core conductor 401 until the main core conductor 401 abuts against the bottom of the crimping hole of the terminal 206, before crimping, it is confirmed that L4 is between 155mm and 165mm, after crimping, burrs and burrs left when the surface of the terminal 206 is crimped are removed by sandpaper or rasp, and the surface is wiped with a cleaning cloth. In actual operation, the anti-torsion cable structure comprises three grounding wire cores and three main wire cores, and the three main wire cores are all sleeved with the wiring terminals according to the steps.

Before the wire connection terminal 206 is sleeved, the adhesive tape 115 wound around the end of the main wire conductor 401 of the first subsection 1021a is removed for ensuring good contact of the main wire conductor 401 with the wire connection terminal 206; when L4 is between 155mm to 165mm, the connection terminal 206 can abut against the separable plug structure body 201 when the separable plug structure body 201 is subsequently sleeved, so as to ensure that the connection terminal 206 and the separable plug structure body 201 are in good contact.

S170, sleeving the cable adapter tube and the connecting terminal with a separable plug structure body.

For the convenience of describing the sleeving structure of the separable plugging structure body in detail, fig. 17 exemplifies one main wire core 102-1 in the anti-twisting cable structure. Referring to fig. 17, the outer surfaces of the cable adapter tube 208 and the terminal 206 are cleaned, a proper amount of lubricating silicone grease is uniformly coated on the outer surface of the cable adapter tube 208 and the inner surface of the separable plugging structure main body 201, it is checked and confirmed that the longer interface side of the separable plugging structure main body 201 faces the equipment sleeve, the adhesive tape 116 is wound on the joint position between the side of the cable adapter tube 208 away from the terminal 206 and the main core 102-1, and the separable plugging structure main body 201 is sleeved on the cable adapter tube 208 and the terminal 206. In actual operation, including three earth core and three main core in the antitorque cable structure, three main core all establish detachable plug structure main part according to above-mentioned step cover.

The adhesive tape 116 is wound at the joint position of the main core 102-1 and one side of the cable adapting pipe 208 far away from the connecting terminal 206, so that the cable adapting pipe is ensured not to be displaced, the cable adapting pipe 208 is sleeved on the second subsection 1021b and a part of the third subsection 1021c, the separable plug structure main body 201 is sleeved on the connecting terminal 206 and the cable adapting pipe 208, and good contact between the second main core subsection 1021 and the separable plug structure 200 is ensured.

The method for preparing the wire harness assembly for the wind turbine generator is used for preparing the wire harness assembly for the wind turbine generator, the anti-torsion cable structure, the grounding wire core and the main wire core are reasonably arranged, the structure of the anti-torsion cable is guaranteed to be firm and stable, meanwhile, the electric connection between the grounding wire core and the grounding terminal is guaranteed to be good in contact connection between the main wire core and the separable plug-pull structure, the matching use of a cable and a cable terminal accessory is realized, the problems that the wire harness assembly manufactured on site is influenced by working condition environment, irregular operation exists and systematic testing cannot be performed are solved, and the performance stability of the wire harness assembly for the wind turbine generator is guaranteed.

Based on the same inventive concept, an embodiment of the present invention further provides another method for manufacturing a wire harness assembly for a wind turbine generator, which is used for manufacturing the wire harness assembly for the wind turbine generator of the above embodiment, fig. 18 is a flowchart of the method for manufacturing the wire harness assembly for the wind turbine generator, and fig. 19 is a schematic structural diagram of a conductive mesh belt on a main wire core, provided by the embodiment of the present invention; fig. 20 is a schematic structural diagram of a conductive mesh tape on a grounding conductor of a main wire core and a grounding wire core corresponding to the main wire core according to an embodiment of the present invention.

Referring to fig. 18, the method specifically includes the following steps:

s201, stripping off the semi-conductive protective layer at the position of the subsection part of the second grounding wire core to form a fracture, and exposing the conductor of the grounding wire core.

S202, winding the main wire core from a preset position of the second end part by adopting a conductive mesh belt in a 40% -60% lap joint mode, and reserving the conductive mesh belt with a preset length at the second root part.

To facilitate the detailed description of the winding of the conductive mesh tape on the main core, fig. 19 exemplifies the structure of the anti-twisting cable including a main core 102-1 and a ground core 101-1. Referring to fig. 19, the conductive mesh tape 60 is wound around the main core 102-1 in 40% -60% lap joint from the second end 53 at a predetermined position, and a predetermined length of the conductive mesh tape 60 is left at the second root 54.

Optionally, the conductive mesh belt 60 is a copper mesh belt, the preset position is a position which is 255mm away from the second end 53 and 245-, and the length of the reserved conductive mesh belt with the preset length is between 450mm and 550mm, wherein the 40% -60% overlapping mode means that in two adjacent layers of the wound conductive mesh belt, the later layer of conductive mesh belt is overlapped on the former layer of conductive mesh belt and covers 40% -60% of the area of the former layer of conductive mesh belt. In actual operation, the anti-torsion cable structure comprises three grounding wire cores and three main wire cores, and the three main wire cores are wound on the conductive mesh belt according to the steps.

The copper mesh belt is adopted as the conductive mesh belt, so that external electromagnetic interference can be effectively shielded; the length L1 of the fracture 50 meets the condition that the L1 is not less than 15mm and not more than 25mm, so that good contact between the conductive mesh belt 60 and the conductor of the grounding wire core can be ensured; according to the actual requirement, the preset position is 245-255mm away from the second end 53, so that the conductive mesh belt 60 wound on the main wire core 102-1 can be ensured to play a shielding role; the conductive mesh belt is lapped in a 40-60% lapping mode, so that a shielding effect can be achieved on the main wire core 102-1, and the use of the conductive mesh belt is saved; the length of the reserved conductive mesh belt with the preset length is 450-550 mm, and the conductive mesh belt is used for subsequently winding a grounding wire core conductor of a grounding wire core corresponding to the main wire core 102-1.

S203, winding the reserved conductive mesh belt on the second root and a grounding wire core conductor of the grounding wire core corresponding to the main wire core respectively.

To facilitate the detailed description of the winding manner of the conductive mesh tape on the ground wire core, fig. 20 exemplifies the structure of the anti-twisting cable including a main wire core 102-1 and a ground wire core 101-1. Referring to fig. 19 and 20, the remaining conductive mesh tape is respectively wound on the second root 54 and the ground wire core conductor 410 of the ground wire core 101-1 corresponding to the main wire core 102-1, and is tightened by using tinned copper wires, and the necking of the tinned copper wires is flat and has no tip. In actual operation, the anti-torsion cable structure comprises three grounding wire cores and three main wire cores, and grounding wire core conductors of the three main wire cores and the three grounding wire cores corresponding to the main wire cores are wound on the conductive mesh belt according to the steps.

The reserved conductive mesh tape is respectively wound on the second root part 54 and the grounding wire core conductor 410 of the grounding wire core 101-1 corresponding to the main wire core 102-1, so that the conductive mesh tape 60 on the main wire core 102-1 and the conductive mesh tape 60 on the grounding wire core conductor 410 can be effectively connected.

And S204, coating the conductive mesh belt by using a coating layer.

Continuing with reference to fig. 6 and 7, exemplary embodiments of fig. 6 and 7 are illustrated with the twist resistant cable configuration including a primary core 102-1 and a ground core 101-1. The conductive mesh belt 60 is covered with a covering layer 611, and optionally, the conductive mesh belt 60 is a copper mesh belt, and the covering layer 611 is made of PVC, that is, a PVC-covered copper mesh belt is used. In actual operation, the anti-torsion cable structure comprises three grounding wire cores and three main wire cores, and the three main wire cores and the three grounding wire cores corresponding to the main wire cores are coated with the conductive mesh belt according to the steps.

The coating layer 611 coats the conductive mesh belt 60 with PVC, which can effectively protect the conductive mesh belt 60 and fasten the conductive mesh belt 60.

And S205, coating a coating layer at the first root position and the second root position by adopting a first furling layer.

And S206, coating the first furling layer by using the second furling layer.

And S207, coating the second furling layer by using a filling layer, wherein the filling layer is flush with the cable outer sheath.

And S208, coating the filling layer by adopting a third furling layer.

Continuing with reference to fig. 6 and 8, exemplary embodiments of fig. 6 and 8 are illustrated with reference to a twist resistant cable configuration including a primary core 102-1 and a ground core 101-1. Referring to fig. 6 and 8, a first furled layer (not shown) is wrapped around the cladding layer 611 at a first root location 52 and a second root location 54; the second furled layer (not shown) wraps the first furled layer (not shown); a filler layer (not shown) covers the second gathered layer (not shown), and the filler layer is flush with the cable outer sheath 409; the third gathered layer 612 wraps the filling layer (not shown); the first furling layer, the second furling layer, the filling layer and the third furling layer are all arranged at the first root position 52 and the second root position 54, optionally, the first furling layer, the second furling layer and the third furling layer are all made of PVC, and the filling layer is made of filling daub. Specifically, 2 layers of PVC are wound on the first root position and the second root position in a 40% -60% lap joint mode to serve as a first furling layer and a second furling layer, then the second furling layer PVC is wrapped and filled with the filling daub until the filling daub is flush with the cable outer sheath, and finally 1 layer of PVC is wound outside the filling daub in a 40% -60% lap joint mode to serve as a third furling layer. In actual operation, the anti-torsion cable structure comprises three grounding wire cores and three main wire cores, and the roots of the six wire cores are folded according to the steps.

The first furling layer and the second furling layer adopt PVC, so that the connection part of the conductive mesh belt 60 on the main wire core 102-1 and the conductive mesh belt 60 on the grounding wire core conductor of the grounding wire core 101-1 corresponding to the main wire core can be protected, and the furling of the first root part position 52 and the second root part position 54 is realized; the filling daub is coated outside the second furling layer to furl the second furling layer, so that furling and protection of the first root position 52 and the second root position 54 can be further enhanced, the filling daub is filled to be flush with the outer sheath 409, the heat-shrinkable multi-finger sleeve 613 can be ensured to be in close contact with a cable when the heat-shrinkable multi-finger sleeve 613 is subsequently sleeved, and the structure is firm and stable. The first furling layer, the second furling layer and the third furling layer are in 40-60% lap joint, so that the wire core can be effectively furled, and the use of PVC is saved.

S209, sleeving the cable outer sheath, the grounding wire core and the main wire core by using a heat-shrinkable multi-finger sleeve, wherein the index division quantity of the heat-shrinkable multi-finger sleeve is equal to the sum of the number of the grounding wire cores and the number of the main wire cores.

And S210, sleeving the grounding wire core and the coating layer by using a heat-shrinkable tube.

Continuing with FIG. 9, exemplary illustration of FIG. 9 is provided of a twist resistant cable construction including a primary core 102-1 and a ground core 101-1. Referring to fig. 9, specifically, after steps S204-S208 are completed, the cable outer sheath 409, the grounding wire core 102-1 and the main wire core 101-1 are sleeved with the heat-shrinkable multi-fingerstall 613, and the fractional number of the heat-shrinkable multi-fingerstall 613 is equal to the sum of the number of the grounding wire cores and the number of the main wire cores; then, a heat-shrinkable tube (not shown) is adopted to be sleeved on the grounding wire core 101-1 and the coating layer 611, in actual operation, the anti-torsion cable structure comprises three grounding wire cores and three main wire cores, a heat-shrinkable six-finger sleeve is selected to be sleeved on the cable outer sheath, the grounding wire cores and the main wire cores, and the heat-shrinkable tube is adopted to be sleeved on the coating layers of the grounding wire cores and the main wire cores.

The heat-shrinkable multi-finger sleeve 613 is sleeved on the cable outer sheath 409, the grounding wire core 101-1 and the main wire core 102-1, can fold and fasten the root of the cable and plays a role in corrosion prevention, and separates the grounding wire core 101-1 from the main wire core 102-1 through a multi-finger structure, so that the main wire core 102-1 can be conveniently subjected to structural adjustment and sleeved with the wiring terminal 206, the cable adapting pipe 208 and the separable plugging structure main body 201; the heat shrink tube is sleeved on the grounding wire core 101-1 and the coating layer 611, so that the grounding wire core 101-1 and the coating layer 611 can be effectively protected, and the effects of insulation, sealing and protection are achieved.

And S211, pressing the grounding terminal on the side of the second grounding wire core subsection far away from the first grounding wire core subsection.

S212, arranging waterproof daub on one side, close to the third sub-sub.

With continued reference to fig. 10, the second subsection 1021b includes a main core conductor (not shown) and a core insulation layer 404 wrapped around the main core conductor, the third subsection 1021c includes a main core conductor (not shown), a core insulation layer 404 wrapped around the main core conductor and a semiconductive layer 405 wrapped around the core insulation layer, the third subsection 1021c is exposed outside the heat shrink tube (not shown), the second subsection 1021b is exposed outside the third subsection 1021c, and the marker tape 110 is disposed on the heat shrink tube; with continued reference to fig. 11, a waterproof mastic 111 is provided on the first main core section on a side thereof adjacent the third subsection 1021 c.

The mark belt 110 is used for determining the sleeving position of the cable adapter tube 208 when the cable adapter tube 208 is sleeved subsequently; the waterproof daub 111 has the advantages of being waterproof, moistureproof, chemical corrosion resistant and the like, and can effectively protect the main wire core to play a role in waterproof sealing.

S213, winding a connecting adhesive tape at the junction position of the third sub-subsection and the second main wire core subsection, wherein waterproof daub is arranged at the lap joint part of the connecting adhesive tape.

With continued reference to fig. 12, the joint tape 112 is wrapped around the intersection of the third subsection 1021c and the second main core subsection, and the joint tape 112 overlaps a portion of the waterproofing mastic 111.

The connecting tape 112 is used to protect the junction between the third subsection 1021c and the second main core subsection, and the waterproof mastic 111 at the overlapping portion can fix the waterproof mastic.

And S214, arranging stress control cement at the junction position of the second subsection and the third subsection.

With continued reference to FIG. 13, a stress control mastic 113 is provided at the interface of the second subsection 1021b and the third subsection 1021 c.

The stress control mastic 113 serves to protect the interface between the second subsection 1021b and the third subsection 1021c and serves as a waterproof seal.

S215, chamfering the edge of the core insulating layer on one side, close to the first subsection, of the second subsection to form an inclination angle.

With continued reference to FIG. 13, the core insulation 404 on the side of the second subsection 1021b adjacent the first subsection 1021a is edge-chamfered to form a bevel 114; a temporary protective tape 115 is wrapped around the end of the main core conductor 401 of the first subsection 1021 a.

The core insulation layer 404 on the second subsection 1021b adjacent to the first subsection 1021a forms an angle of inclination 114 that protects the main core conductor 401 during subsequent installation of the cable adapter tube 208; the tape 115 is used to protect the end of the main core conductor 401 of the first subsection 1021a when the cable adapter tube 208 is installed.

And S216, sleeving a cable adapter pipe on the second sub-unit and part of the third sub-units.

And S217, sleeving a wiring terminal on the first sub-part.

S218, sleeving the cable adapter tube and the connecting terminal with a separable plug structure body.

The cable adapting pipe 208 is sleeved on the second subsection 1021b and a part of the third subsection 1021c, and the separable plug structure main body 201 is sleeved on the wiring terminal 206 and the cable adapting pipe 208, so that good contact between the second main core subsection 1021 and the separable plug structure 200 is ensured.

In practical operation, the anti-twisting cable structure comprises three grounding wire cores and three main wire cores, and all the three main wire cores are processed according to the steps S212-S218.

The method for preparing the wire harness assembly for the wind turbine generator is used for preparing the wire harness assembly for the wind turbine generator, the main wire core is wound at a preset position of the second end in a 40% -60% lap joint mode through the conductive mesh belt, the conductive mesh belt with the preset length is reserved at the second end, and the reserved conductive mesh belt is respectively wound on the second end and a grounding wire core conductor of the grounding wire core corresponding to the main wire core, so that the effect of shielding an external electric field of the main wire core is realized, and the conductive mesh belt on the main wire core is ensured to be effectively connected with the conductive mesh belt on the grounding wire core; the folding of the main wire core and the grounding wire core in the anti-torsion cable structure is realized through the coating layer, the first folding layer, the second folding layer, the filling layer, the third folding layer, the heat-shrinkable multi-finger sleeve and the heat-shrinkable tube in the folding structure. Waterproof daub is arranged on one side, close to the third sub-sub; winding a connecting adhesive tape at the junction of the third sub-subsection and the second main wire core subsection, wherein waterproof daub is arranged at the lap joint part of the connecting adhesive tape; arranging stress control mastic at the junction of the second subsection and the third subsection; the core insulation layer on one side of the second subsection, which is close to the first subsection, is subjected to edge chamfering to form an inclination angle, and the processing of the main core in the anti-torsion cable structure facilitates the crimping of the wiring terminal, the cable adapting pipe and the sleeving of the separable plug structure main body.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that the features of the various embodiments of the invention may be partially or fully coupled to each other or combined and may be capable of cooperating with each other in various ways and of being technically driven. Numerous variations, rearrangements, combinations, and substitutions will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A wire harness assembly for a wind turbine generator is characterized by comprising an anti-torsion cable structure, a separable plug-pull structure and a grounding terminal;

2. The wire harness assembly for a wind turbine according to claim 1, wherein the second ground wire core subsection includes a first end portion on a side distal from the first ground wire core subsection and a first root portion on a side proximal to the first ground wire core subsection; the second main core subsection including a second end portion distal from the first main core subsection and a second root portion proximal to the first main core subsection;

the fracture is formed at the position of the first root, and the length L1 of the fracture is more than or equal to 15mm and less than or equal to L1 and less than or equal to 25 mm;

the conductive mesh belt is wound on the main wire core and the grounding wire core conductor of the grounding wire core corresponding to the main wire core in a 40% -60% lap joint mode from the second end preset position.

3. The wire harness assembly for the wind turbine generator according to claim 2, wherein the furled structure comprises a coating layer, a first furled layer, a second furled layer, a filling layer, a third furled layer, a heat-shrinkable multi-finger sleeve and a heat-shrinkable tube;

the coating layer coats the conductive mesh belt;

the first furled layer wraps the coating layer at the first root location and the second root location;

the second furling layer coats the first furling layer;

the filling layer coats the second furling layer and is flush with the cable outer sheath;

the third furling layer coats the filling layer;

the heat-shrinkable multi-finger sleeve is sleeved on the cable outer sheath, the grounding wire core and the main wire core, and the index division quantity of the heat-shrinkable multi-finger sleeve is equal to the sum of the number of the grounding wire cores and the number of the main wire cores;

the heat-shrinkable tube is sleeved on the grounding wire core and the coating layer.

4. The wire harness assembly for a wind turbine according to claim 1, further comprising waterproof mastic, connection tape, and stress control mastic;

the waterproof daub is arranged on one side, close to the third sub-;

the connecting adhesive tape is wound at the junction position of the third sub-subsection and the second main wire core subsection, and the connecting adhesive tape is overlapped with the waterproof daub;

the stress control mastic is disposed at a juncture of the second subsection and the third subsection;

the core insulating layer on one side of the second subsection close to the first subsection is formed with an inclined angle.

5. The harness assembly for a wind turbine according to claim 1, wherein the length L2 of the first sub-section and the length L3 of the connection terminal satisfy 5mm ≤ L2-L3 ≤ 15 mm.

6. The wire harness assembly for a wind turbine according to claim 1 wherein the torsion resistant cable structure includes an outer cable jacket, three main wire cores, and three ground wire cores.

7. A method for manufacturing a wire harness assembly for a wind turbine generator, which is used for manufacturing the wire harness assembly for the wind turbine generator as claimed in any one of claims 1 to 6, and which comprises the following steps:

a wiring terminal is sleeved on the first sub-part;

8. The method of manufacturing of claim 7, wherein the second ground wire core subsection includes a first end portion distal from a side of the first ground wire core subsection and a first root portion proximal to a side of the first ground wire core subsection; the second main core subsection including a second end portion distal from the first main core subsection and a second root portion proximal to the first main core subsection;

adopt electrically conductive guipure winding the main line core and with the main line core corresponds ground wire core on the ground wire core conductor, include:

winding the main wire core from a preset position of the second end part by adopting a conductive mesh belt in a 40-60% lap joint mode, and reserving the conductive mesh belt with a preset length at the second root part;

and winding the reserved conductive mesh belt on the second root part and the grounding wire core conductor of the grounding wire core corresponding to the main wire core respectively, so that the conductive mesh belt is connected with the main wire core and the grounding wire core.

9. The method of claim 8, wherein the furled structure comprises a coating layer, a first furled layer, a second furled layer, a filling layer, a third furled layer, a heat-shrinkable multi-fingered sleeve, and a heat-shrinkable tube;

adopt to draw in structure draw in the main line core with earth core includes:

coating the conductive mesh belt by using the coating layer;

coating the coating layer at the first root position and the second root position with the first furled layer;

coating the first furling layer by using the second furling layer;

the second furling layer is coated by the filling layer, and the filling layer is flush with the cable outer sheath;

coating the filling layer by using the third furling layer;

and sleeving the ground wire core and the coating layer by using the heat-shrinkable tube.

10. The method as claimed in claim 7, wherein before the sleeving of the cable adapter tube on the second sub-section and the third sub-section, the method further comprises:

arranging waterproof daub on one side of the first main wire core subsection, which is close to the third subsection;

winding a connecting adhesive tape at the junction position of the third sub-subsection and the second main wire core subsection, wherein the connecting adhesive tape overlaps the waterproof daub;

providing a stress control mastic at the juncture of the second subsection and the third subsection;

and chamfering the edge of the core insulating layer on one side of the second subsection, which is close to the first subsection, to form an inclined angle.