CN217182462U - Conductive member and connection structure of conductive member and lightning branch line - Google Patents
Conductive member and connection structure of conductive member and lightning branch line Download PDFInfo
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- CN217182462U CN217182462U CN202220530832.4U CN202220530832U CN217182462U CN 217182462 U CN217182462 U CN 217182462U CN 202220530832 U CN202220530832 U CN 202220530832U CN 217182462 U CN217182462 U CN 217182462U
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- conductive
- lightning
- branch line
- insulating layer
- connecting part
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- 230000007704 transition Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 238000009413 insulation Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 210000001331 nose Anatomy 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 208000025274 Lightning injury Diseases 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The application relates to a connection structure of a conductive part and the conductive part and a lightning protection branch line, and relates to the technical field of specific wind power blades. The connecting part is fixedly connected with the conductive part, a connecting hole is formed in one end, far away from the conductive part, of the connecting part, and the connecting hole is a blind hole. This application has the effect that improves conductive parts and lightning-arrest branch connection stability, can improve lightning-arrest effect, increase of service life.
Description
Technical Field
The application relates to the technical field of wind power blades, in particular to a conductive part and a connection structure of the conductive part and a lightning protection branch line.
Background
Wind power is a new clean energy source, the capacity of a single machine of a wind power plant is gradually increased, the height of a hub and the diameter of an impeller are increased, the risk of lightning striking of a wind turbine is increased, due to the randomness of lightning, only lightning protection measures can be taken to reduce the probability of lightning striking, and in the lightning damage of the wind turbine, the loss of direct lightning striking of a blade is the largest, so that the direct lightning protection of the blade is the most important part in the lightning protection of the wind turbine, and in order to avoid the damage of the wind turbine caused by the lightning strike, a lightning protection system needs to be installed on the blade.
In the related art, a connection structure of a conductive metal plate and a lightning branch line of a wind power blade is disclosed, and the connection structure comprises the lightning branch line and the conductive metal plate, wherein the lightning branch line is connected with the conductive metal plate through a line nose.
In view of the above-mentioned related technologies, the inventor believes that the connection structure between the lightning branch line and the conductive metal plate has poor stability, which affects the lightning protection effect.
Disclosure of Invention
In order to improve the stability and the lightning-arrest effect of electrically conductive parts junction, this application provides a patent name.
In a first aspect, the present application provides a conductive component, which adopts the following technical solutions:
a conductive part comprises a conductive part and a connecting part, wherein the connecting part is fixedly connected with the conductive part, one end, far away from the conductive part, of the connecting part is provided with a connecting hole, and the connecting hole is a blind hole.
Through adopting above-mentioned technical scheme, electrically conductive part is used for installing the arrester of lightning-arrest branch line, when the installation, inserts the exposed one end of lightning-arrest branch line in the connecting hole, flattens connecting portion, makes lightning-arrest branch line and connecting portion crimping as an organic whole, no longer uses bolt and line nose, reduces the instability of artifical construction bolt in traditional connected mode, improves the stability of being connected of electrically conductive part and lightning-arrest branch line, improves lightning-arrest effect to life has been prolonged.
Optionally, a threaded hole is formed in the conductive portion, and the threaded hole is a blind hole.
Through adopting above-mentioned technical scheme, set up the screw hole in advance when the mill, when the installation connects the arrester, conveniently fix the arrester on the conductive part.
Optionally, the conductive portion is disc-shaped, the connecting portion is cylindrical, an axis of the conductive portion is perpendicular to an axis of the connecting portion, and a joint of the conductive portion and the connecting portion is in smooth transition.
By adopting the technical scheme, smooth transition is convenient for processing and batch production.
Optionally, one end of the connecting portion away from the conductive portion is provided with a chamfer.
By adopting the technical scheme, the insulating sleeve is required to be sleeved on the outer sides of the connecting part and the lightning protection branch line, and the chamfer angle is convenient for the insulating sleeve to be sleeved on the outer side of the connecting part.
Optionally, the inner wall of the connecting hole is a rough surface.
Through adopting above-mentioned technical scheme, the area of contact of coarse surface can increase connecting hole inner wall and lightning-arrest branch line, and increase frictional force further improves the connection stability of connecting portion and lightning-arrest branch line.
Optionally, the thickness of the conductive portion is greater than that of the connecting portion.
By adopting the technical scheme, because the lightning receptor is arranged on the conductive part, if the thickness of the conductive part is smaller, when lightning current is larger, the conductive part is easy to break down, and even the blade is damaged; when the conductive part thickness is great, can accept great thunderbolt electric current, the conductive part is difficult to puncture, and the thunderbolt generally can make the arrester damage, only need during the maintenance maintain or change the arrester can, reduce cost of maintenance.
Optionally, the thickness of the conductive portion is 15-25mm, and the wall thickness of the connecting portion on the periphery of the connecting hole is 2-5 mm.
By adopting the technical scheme, when the conductive part is in the thickness range, the conductive part can bear larger lightning current; the wall thickness of the connecting part on the periphery of the connecting hole is controlled to ensure the structural strength of the connecting part and the conductive part, and when a tensile test is carried out, the state of the connecting part and the conductive part is intact, and the lightning protection branch line is broken by pulling, so that the standard requirements are met.
In a second aspect, the present application provides a connection structure of a conductive component and a lightning protection branch line, which adopts the following technical scheme:
the connecting structure of the conductive part and the lightning protection branch line comprises the conductive part, the lightning protection branch line, a conductive insulating layer, a branch line insulating layer and an insulating sleeve, wherein one end of the lightning protection branch line is inserted into the connecting hole and is fixedly connected with the connecting part, the conductive insulating layer wraps the surface of the conductive part, the branch line insulating layer wraps the surface of the lightning protection branch line far away from one end of the connecting part, one end of the insulating sleeve wraps the surface of the conductive insulating layer close to the connecting part, and the other end of the insulating sleeve wraps the end of the branch line insulating layer close to the connecting part.
Through adopting above-mentioned technical scheme, after the lightning receptor was installed to the conductive part, lightning current introduced the conductive part from the lightning receptor, pass through connecting portion and lightning-arrest branch line in proper order, finally introduce the ground, conductive insulation layer makes conductive part remove other regional insulations of the position of installation lightning receptor, promptly, conductive insulation layer does not cover the screw hole, the branch line insulating layer makes the conductive part of lightning-arrest branch line insulating, the insulating sleeve covers the gap between connecting portion and the branch line insulating layer, further improve the insulating nature of lightning-arrest branch line and connecting portion junction, thereby improve lightning-arrest effect.
Optionally, the conductive insulating layer, the branch insulating layer and the insulating sleeve are made of different materials.
By adopting the technical scheme, the conductive insulating layer is made of the insulating resin material, and is integrally formed on the surface of the conductive part when in use, the branch insulating layer is a commercially available wire insulating sheath, the insulating sleeve is an insulating heat-shrinkable tube, and the material is selected according to the characteristics of each part and is convenient to process.
Optionally, one end of the conductive insulating layer, which is located at the connecting portion and close to the branch insulating layer, is funnel-shaped.
By adopting the technical scheme, the funnel-shaped insulating sleeve convenient to use is sleeved on the outer side of the connecting part.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the lightning protection device is installed, one exposed end of the lightning protection branch line is inserted into the connecting hole, the connecting part is flattened, the lightning protection branch line and the connecting part are connected into a whole in a compression joint mode, bolts and line noses are not used, the instability of manual installation of the bolts in the traditional connecting mode is reduced, the connecting stability of the conductive part and the lightning protection branch line is improved, the lightning protection effect is improved, and the service life is prolonged;
2. the inner wall of the connecting hole is set to be a rough surface, so that the contact area between the inner wall of the connecting hole and the lightning protection branch line can be increased, the friction force is increased, and the connection stability of the connecting part and the lightning protection branch line is further improved;
3. through setting up conductive insulation layer, branch line insulating layer and insulating cover, the insulating cover covers the gap between connecting portion and the branch line insulating layer, further improves the insulating nature of lightning-arrest branch line and connecting portion junction to improve lightning-arrest effect.
Drawings
FIG. 1 is a schematic structural view of a conductive member of the present application;
FIG. 2 is a cross-sectional view of a conductive component of the present application;
fig. 3 is a schematic structural view of a connection structure of a conductive member and a lightning branch line according to the present application;
fig. 4 is an exploded structure view of the connection structure of the conductive member and the lightning branch line of the present application;
fig. 5 is a partial sectional view of the connection structure of the conductive member and the surge arrester branch line of the present application;
fig. 6 is a schematic structural view of a conductive insulating layer of the connection structure of the conductive member and the lightning branch line of the present application;
description of reference numerals: 1. a conductive portion; 2. a connecting portion; 3. connecting holes; 4. a threaded hole; 5. chamfering; 6. lightning-arrest branch lines; 7. a conductive insulating layer; 8. a branch insulating layer; 9. and an insulating sleeve.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a conductive component.
Referring to fig. 1 and 2, the conductive component includes a conductive portion 1 and a connection portion 2, the conductive portion 1 and the connection portion 2 may be made of pure aluminum or pure copper, in this embodiment, the conductive portion 1 and the connection portion 2 are made of pure aluminum, the connection portion 2 is integrally connected with the conductive portion 1, the conductive portion 1 is in a disc shape, the connection portion 2 is in a cylindrical shape, an axis of the conductive portion 1 is perpendicular to an axis of the connection portion 2, a connection portion 1 and the connection portion 2 are in smooth transition, a connection hole 3 for inserting a lightning protection branch line 6 is formed at one end of the connection portion 2, which is far away from the conductive portion 1, and the connection hole 3 is a blind hole.
Referring to fig. 1 and 2, in order to further improve the connection stability between the connection part 2 and the lightning rod 6, the inner wall of the connection hole 3 is a rough surface, and the rough surface can increase the contact area between the inner wall of the connection hole 3 and the lightning rod 6, increase the friction force, and reduce the possibility that the lightning rod 6 is separated from or loosened from the connection part 2.
Referring to fig. 1 and 2, in order to facilitate the subsequent installation of the insulating sleeve 9, one end of the connecting portion 2 away from the conductive portion 1 is provided with a chamfer 5, and the chamfer 5 may be a chamfer or a fillet, and in the present embodiment, the chamfer 5 is a chamfer.
Referring to fig. 1 and 2, since the lightning receptor needs to be installed subsequently on the conductive part 1, the conductive part 1 is provided with the threaded hole 4, the threaded hole 4 is a blind hole, the threaded hole 4 can be processed in a factory in advance, and the lightning receptor can be installed on site more conveniently. Because the arrester is installed at conductive part 1, if conductive part 1's thickness is less, when lightning current is great, conductive part 1 punctures easily, lead to the blade to damage even, consequently, conductive part 1's thickness is greater than the thickness of connecting portion 2, when conductive part 1 thickness is great, can accept great lightning current, conductive part 1 is difficult to puncture, the lightning stroke generally can make the arrester damage, only need during the maintenance maintain or change the arrester can, reduce cost of maintenance.
Referring to fig. 1 and 2, the thickness of the conductive portion 1 may be 15mm, 20mm, or 25mm, but it is sufficient if the effect of receiving a large lightning current can be achieved, in this embodiment, the thickness of the conductive portion 1 may be 20mm, the diameter of the conductive portion 1 may be 70mm, the thickness of the connecting portion 2 on the periphery of the connecting hole 3 may be 2mm, 3mm, or 5mm, but it is sufficient if the effect of being not easily broken is achieved, in this embodiment, the thickness of the connecting portion 2 on the periphery of the connecting hole 3 may be 3mm, the diameter of the connecting hole 3 may be 10mm, and the depth of the connecting hole 3 may be 47 mm. When the conductive part 1 is within the thickness range, the conductive part can bear larger lightning strike current; the reason for controlling the thickness of the connecting portion 2 around the connecting hole 3 is to ensure the structural strength of the connecting portion 2 and the conductive portion 1, when a tensile test is performed, the connecting portion 2 and the conductive portion 1 are in a good state, and the lightning protection branch line 6 is broken, which indicates that the structural strength of the connecting portion 2 and the conductive portion 1 meets the standard requirement.
The implementation principle of the conductive part of the embodiment of the application is as follows: when the lightning protection device is installed, the exposed end of the lightning protection branch line 6 is inserted into the connecting hole 3, the connecting part 2 is flattened, the lightning protection branch line 6 and the connecting part 2 are connected in a compression joint mode into a whole, bolts and line noses are not used, the instability of manual installation of the bolts in the traditional connecting mode is reduced, the connecting stability of the conductive part and the lightning protection branch line 6 is improved, the lightning protection effect is improved, and the service life is prolonged.
The embodiment of the application also discloses a connecting structure of a conductive part and a lightning branch line, and referring to fig. 3-5, the connecting structure of the conductive part and the lightning branch line comprises the conductive part, and further comprises a lightning branch line 6, a conductive insulating layer 7, a branch line insulating layer 8 and an insulating sleeve 9, wherein the lightning branch line 6 is formed by twisting a plurality of copper wires, one end of the lightning branch line 6 is inserted into the connecting hole 3 and is flattened to enable the lightning branch line 6 and the connecting part 2 to be connected into a whole in a crimping manner, the conductive insulating layer 7 is wrapped on the surface of the conductive part, the conductive insulating layer 7 is made of an insulating resin material, the conductive insulating layer 7 is integrally formed on the surface of the conductive part, the branch line insulating layer 8 is wrapped on the surface of the lightning branch line 6 far away from one end of the connecting part 2, the branch line insulating layer 8 is a commercially available wire insulating sheath, one end of the insulating sleeve 9 is wrapped on the surface of the conductive insulating layer 7 near the connecting part 2, the other end is wrapped up in the branch line insulating layer 8 and is close to the one end of connecting portion 2, and insulating cover 9 is insulating pyrocondensation pipe, and insulating cover 9 covers the gap between connecting portion 2 and the branch line insulating layer 8, further improves the insulating nature of lightning-arrest branch line 6 and connecting portion 2 junction. The conductive insulating layer 7, the branch insulating layer 8 and the insulating sleeve 9 are made of different materials, and the materials are selected according to the characteristics of each part, so that the processing is convenient.
After the lightning receptor is installed on the conductive part 1, lightning current is introduced into the conductive part 1 from the lightning receptor, the lightning current sequentially passes through the connecting part 2 and the lightning protection branch line 6, the ground is finally introduced, the conductive insulation layer 7 enables the conductive part to be insulated except other areas where the lightning receptor is installed, namely, the conductive insulation layer 7 does not cover the threaded hole 4, the branch line insulation layer 8 enables the conductive part of the lightning protection branch line 6 to be insulated, the insulating sleeve 9 covers a gap between the connecting part 2 and the branch line insulation layer 8, the insulativity of the junction of the lightning protection branch line 6 and the connecting part 2 is further improved, and therefore the lightning protection effect is improved.
Referring to fig. 5-6, the conductive insulation layer 7 is funnel-shaped at the end of the connecting portion 2 adjacent to the spur insulation layer 8, which funnel shape facilitates the insulation sleeve 9 to fit over the outside of the connecting portion 2.
The implementation principle of the connection structure of the conductive part and the lightning protection branch line in the embodiment of the application is as follows: inserting the exposed end of the lightning branch line 6 into the connecting hole 3, flattening the connecting part 2 to enable the lightning branch line 6 and the connecting part 2 to be in compression joint into a whole, forming a conductive insulating layer 7 on the surface of the conductive part integrally, forming a threaded hole 4 in the middle of one surface of the conductive part 1, sleeving an insulating sleeve 9 on the outer sides of the connecting part 2 and the branch line insulating layer 8, heating to enable the insulating sleeve 9 to shrink and fix, connecting the lightning receptor with the threaded hole 4 of the conductive part 1 through a bolt, and electrically connecting one end, far away from the connecting part 2, of the lightning branch line 6 with a lightning main line; this application can improve conductive part and lightning-arrest branch line 6's stability of being connected, improves lightning-arrest effect to life has been prolonged.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. An electrically conductive member, characterized by: the conductive part connecting structure comprises a conductive part (1) and a connecting part (2), wherein the connecting part (2) is fixedly connected with the conductive part (1), a connecting hole (3) is formed in one end, far away from the conductive part (1), of the connecting part (2), and the connecting hole (3) is a blind hole.
2. A conductive member as claimed in claim 1, wherein: the conductive part (1) is provided with a threaded hole (4), and the threaded hole (4) is a blind hole.
3. A conductive member according to claim 1, wherein: the conductive part (1) is disc-shaped, the connecting part (2) is cylindrical, the axis of the conductive part (1) is perpendicular to the axis of the connecting part (2), and the connecting part (1) and the connecting part (2) are in smooth transition.
4. A conductive member according to claim 3, wherein: and a chamfer (5) is arranged at one end of the connecting part (2) far away from the conductive part (1).
5. A conductive member as claimed in claim 1, wherein: the inner wall of the connecting hole (3) is a rough surface.
6. A conductive member according to claim 1, wherein: the thickness of the conductive part (1) is greater than that of the connecting part (2).
7. An electrically conductive member as claimed in claim 6, wherein: the thickness of the conductive part (1) is 15-25mm, and the wall thickness of the connecting part (2) on the peripheral side of the connecting hole (3) is 2-5 mm.
8. Connection structure of electrically conductive part and lightning-arrest branch line, its characterized in that: the conductive component comprises the conductive component as claimed in any one of claims 1 to 6, and further comprises a lightning-arrest branch line (6), a conductive insulating layer (7), a branch line insulating layer (8) and an insulating sleeve (9), wherein one end of the lightning-arrest branch line (6) is inserted into the connecting hole (3) and is fixedly connected with the connecting part (2), the conductive insulating layer (7) wraps the surface of the conductive component, the branch line insulating layer (8) wraps the surface of the lightning-arrest branch line (6) far away from one end of the connecting part (2), one end of the insulating sleeve (9) wraps the surface of the conductive insulating layer (7) close to the connecting part (2), and the other end of the insulating sleeve (9) wraps one end of the branch line insulating layer (8) close to the connecting part (2).
9. A connecting structure of an electrically conductive member and a lightning branch line according to claim 8, characterized in that: the conductive insulating layer (7), the branch insulating layer (8) and the insulating sleeve (9) are made of different materials.
10. A connecting structure of an electrically conductive member and a lightning branch line according to claim 8, characterized in that: the conductive insulating layer (7) is funnel-shaped at one end of the connecting part (2) close to the branch insulating layer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220530832.4U CN217182462U (en) | 2022-03-10 | 2022-03-10 | Conductive member and connection structure of conductive member and lightning branch line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220530832.4U CN217182462U (en) | 2022-03-10 | 2022-03-10 | Conductive member and connection structure of conductive member and lightning branch line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217182462U true CN217182462U (en) | 2022-08-12 |
Family
ID=82743323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220530832.4U Expired - Fee Related CN217182462U (en) | 2022-03-10 | 2022-03-10 | Conductive member and connection structure of conductive member and lightning branch line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217182462U (en) |
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2022
- 2022-03-10 CN CN202220530832.4U patent/CN217182462U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220812 |
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| CF01 | Termination of patent right due to non-payment of annual fee |