CN216922379U - Apex conductive part and connection structure of apex conductive part and lightning protection mainline - Google Patents
Apex conductive part and connection structure of apex conductive part and lightning protection mainline Download PDFInfo
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- CN216922379U CN216922379U CN202220541041.1U CN202220541041U CN216922379U CN 216922379 U CN216922379 U CN 216922379U CN 202220541041 U CN202220541041 U CN 202220541041U CN 216922379 U CN216922379 U CN 216922379U
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- insulating layer
- main line
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- 230000005611 electricity Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 17
- 238000009413 insulation Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 7
- 210000001331 nose Anatomy 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000010276 construction Methods 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 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
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012942 design verification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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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- Wind Motors (AREA)
Abstract
The application relates to a connection structure of apex conductive parts and lightning protection thread relates to wind-powered electricity generation blade lightning-arrest technical field. The apex conductive part comprises an apex conductive part and a connecting part, the shape of the apex conductive part is identical to that of the wind power blade, the apex conductive part is fixedly connected with the connecting part, one end of the connecting part, far away from the apex conductive part, is provided with a fixed hole, and the fixed hole is a blind hole. This application has the effect that improves apex conductive part and the connection stability of the main line that takes shelter from thunder, can strengthen the effect of taking shelter from thunder, increase of service life.
Description
Technical Field
The application relates to the technical field of wind power blade lightning protection, in particular to a tip conducting part and a connecting structure of the tip conducting part and a lightning protection main line.
Background
Along with the increasing of the output quality guarantee proportion of the wind power complete machine, the proportion of the unit and the blade lost due to thunder is also enlarged. The blade damage causes are high in loss due to thunder. The main reasons for increasing the loss ratio of the existing blade caused by lightning are that lightning protection design of the blade basically does not carry out lightning design verification, the effective lightning receiving rate of a lightning protection system of the blade is low, and the design redundancy of a lightning receiver is insufficient.
In the related art, a connection structure of a tip current-conducting plate and a lightning main line is disclosed, which comprises the lightning main line and the tip current-conducting plate, wherein one end of the lightning main line close to the tip current-conducting plate is connected with a wire nose, and the wire nose is connected with the tip current-conducting plate through a bolt.
In view of the above-mentioned related technologies, the inventor believes that the stability of the connection structure between the main lightning protection wire and the tip conducting plate is poor, which affects the lightning protection effect.
SUMMERY OF THE UTILITY MODEL
In order to improve the stability and the lightning-arrest effect of apex conducting element junction, this application provides a apex conducting element and connection structure of main line of taking shelter from thunder.
In a first aspect, the present application provides a tip conducting component, which adopts the following technical scheme:
the utility model provides a apex conductive part, includes apex conductive part and connecting portion, the shape of apex conductive part is identical with the apex shape of wind-powered electricity generation blade, apex conductive part and connecting portion fixed connection, the one end that apex conductive part was kept away from to connecting portion has seted up the fixed orifices, the fixed orifices is the blind hole.
Through adopting above-mentioned technical scheme, when the construction installation, need insert the fixed orifices with the naked one end of main line of taking shelter from thunder in, flatten connecting portion for take shelter from thunder the main line as an organic whole with connecting portion crimping, cancelled bolt and line nose, thereby reduced artifical construction bolt's instability among the traditional connected mode, improved apex conductive part and the stability of being connected of main line of taking shelter from thunder, reinforcing lightning-arrest effect has prolonged life moreover.
Optionally, the connecting portion includes a first connecting plate and a second connecting column, one end of the first connecting plate is fixedly connected with the tip conductive portion, the other end of the first connecting plate is fixedly connected with one end of the second connecting column, and the fixed hole is formed in one end, far away from the first connecting plate, of the second connecting column.
Through adopting above-mentioned technical scheme, because the surface of first connecting plate and second spliced pole needs the parcel to connect the insulating layer, first connecting plate has increased connecting portion and the area of contact who connects the insulating layer, has improved the stability of being connected of connecting insulating layer and connecting portion, guarantees the insulating nature between connecting portion and the wind-powered electricity generation blade to the reinforcing effect of taking shelter from thunder.
Optionally, the first connecting plate is provided with at least one through hole.
Through adopting above-mentioned technical scheme, connecting insulation layer can adopt the mode integrated into one piece of pouring in first connecting plate surface, has increased the area of contact between connecting insulation layer and the first connecting plate, and then increases frictional force between the two, reduces the possibility that connecting insulation layer and first connecting plate break away from, reinforcing lightning-arrest effect.
Optionally, a chamfer is arranged at one end, away from the first connecting plate, of the second connecting column.
By adopting the technical scheme, the insulating sleeve is required to be sleeved outside the connecting insulating layer and the lightning protection main line, and the chamfer angle is convenient for the insulating sleeve to be sleeved outside the connecting insulating layer.
Optionally, one end of the second connecting column, which is far away from the first connecting plate, is funnel-shaped.
By adopting the technical scheme, the funnel-shaped insulating sleeve convenient to sleeve is sleeved outside the connecting insulating layer at the second connecting column.
Optionally, the inner wall of the fixing hole is a rough surface.
Through adopting above-mentioned technical scheme, the area of contact of design mat surface can increase fixed orifices inner wall and lightning-arrest thread, and increase frictional force further improves the connection stability of connecting portion and lightning-arrest thread, reinforcing lightning-arrest effect.
In a second aspect, the present application provides a connection structure of a tip conducting component and a lightning main line, which adopts the following technical scheme:
the connection structure of the tip conducting component and the lightning protection main line comprises the tip conducting component, and further comprises the lightning protection main line, a connection insulating layer, a main line insulating layer and an insulating sleeve, wherein one end of the lightning protection main line is inserted into the fixing hole and is fixedly connected with the connecting part, the connection insulating layer is wrapped on the surface of the connecting part, the main line insulating layer is wrapped on the surface of the lightning protection main line far away from one end of the connecting part, one end of the insulating sleeve is wrapped on the outer side of the connection insulating layer, and the other end of the insulating sleeve is wrapped on one end of the main line insulating layer close to the connecting part.
By adopting the technical scheme, when the lightning current is introduced from the blade tip conductive part, the lightning current sequentially passes through the connecting part and the lightning protection main line and is finally introduced into the ground, the connecting insulating layer enables the connecting part to be insulated from the wind power blade, the main line insulating layer enables the conductive part of the lightning protection main line to be insulated from the outside, and the insulating sleeve covers the gap between the connecting insulating layer and the main line insulating layer, so that the insulativity of the connecting part of the lightning protection main line and the connecting part is improved, and the lightning protection effect is enhanced.
Optionally, the connection insulating layer, the main line insulating layer and the insulating sleeve are made of different materials.
By adopting the technical scheme, the connecting insulating layer can be made of insulating resin materials, when the blade tip conducting part is used, the connecting insulating layer is integrally formed on the surface of the blade tip conducting part, the main line insulating layer is a commercially available conducting wire insulating sheath, the insulating sleeve is an insulating heat-shrinkable tube, the materials are selected according to the characteristics of each part, and the production and the processing are convenient.
Optionally, the connection insulating layer is integrally connected to a surface of the connection portion.
Through adopting above-mentioned technical scheme, increased the connection stability of connecting insulating layer with connecting portion, the reinforcing effect of taking shelter from thunder.
In summary, the present application includes at least one of the following beneficial technical effects:
1. during construction and installation, one exposed end of the lightning main line is required to be inserted into the fixing hole, the connecting part is flattened, the lightning main line and the connecting part are connected into a whole in a compression mode, and a bolt and a line nose are omitted, so that the instability of manual installation of the bolt in the traditional connecting mode is reduced, the connection stability of the blade tip conducting part and the lightning main line is improved, the lightning protection effect is enhanced, and the service life is prolonged;
2. set up the through-hole on first connecting plate, connecting insulation layer can adopt the mode integrated into one piece of pouring in first connecting plate surface, has increased the area of contact between connecting insulation layer and the first connecting plate, and then increases the frictional force between the two, reduces the possibility that connecting insulation layer and first connecting plate break away from, reinforcing lightning-arrest effect.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of the tip conductive member of the present application.
Fig. 2 is a cross-sectional view of example 1 of the tip conductive member of the present application.
Fig. 3 is a schematic structural view of embodiment 2 of the tip conductive member of the present application.
Fig. 4 is a schematic structural view of a connection structure of a tip conductive member and a main lightning conductor according to the present application
Fig. 5 is an exploded structure diagram of a connection structure of a tip conductive member and a main lightning conductor according to the present application.
Fig. 6 is a partial sectional view of the connection structure of the tip conductive member and the lightning main line according to the present application.
Description of reference numerals: 1. a tip conductive portion; 2. a connecting portion; 21. a first connecting plate; 22. a second connecting column; 3. a fixing hole; 4. a through hole; 5. chamfering; 6. a main lightning conductor; 7. connecting the insulating layer; 8. a main line insulating layer; 9. 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 apex conducting part and connection structure of apex conducting part and lightning-arrest mainline.
Example 1
Referring to fig. 1-2, the tip conductive part includes a tip conductive part 1 and a connection part 2, the tip conductive part 1 and the connection part 2 may be made of pure aluminum, or pure copper, in this embodiment, the tip conductive part 1 and the connection part 2 are made of pure aluminum, the tip conductive part 1 and the connection part 2 are integrally formed, the tip conductive part 1 is identical to the tip shape of the wind turbine blade, the orthographic projection shape of the tip conductive part 1 is semicircular, one surface of the tip conductive part 1, which is close to the connection part 2, is a plane, one side of the tip conductive part 1, which is far away from the connection part 2, is an arc, the thickness of the tip conductive part 1 is gradually reduced along the direction far away from the connection part 2, and one surface of the tip conductive part 1, which is close to the connection part 2, is in a water drop shape. The connecting part 2 comprises a first connecting plate 21 and a second connecting column 22, one end of the first connecting plate 21 and the tip conducting part 1 are integrally formed, the other end of the first connecting plate 21 and one end of the second connecting column 22 are integrally formed, the orthographic projection shape of the first connecting plate 21 is trapezoidal, the upper bottom of the first connecting plate 21 is close to the tip conducting part 1, the thickness of the first connecting plate 21 is smaller than that of the tip conducting part 1 connected with the first connecting plate 21, one end, far away from the tip conducting part 1, of the second connecting column 22 is provided with a fixing hole 3 for inserting a lightning main line 6, the fixing hole 3 is a blind hole, and the connecting part of the tip conducting part 1, the first connecting plate 21 and the second connecting column 22 is in smooth transition; because the surfaces of the first connecting plate 21 and the second connecting column 22 need to be wrapped by the connecting insulating layer 7, the contact area between the connecting part 2 and the connecting insulating layer 7 is increased by the first connecting plate 21, and the connection stability between the connecting insulating layer 7 and the connecting part 2 is improved.
During construction and installation, the exposed end of the lightning main line 6 needs to be inserted into the fixing hole 3, the second connecting column 22 of the connecting part 2 is flattened, the lightning main line 6 and the second connecting column 22 are connected into a whole in a compression mode, bolts and wire noses are omitted, instability of manual installation of the bolts in a traditional connecting mode is reduced, connection stability of the blade tip conducting part and the lightning main line 6 is improved, the lightning protection effect is enhanced, and the service life is prolonged.
At least one through hole 4 is formed in the first connecting plate 21, the number of the through holes 4 may be 1, 4 or 7, but it is only required to increase the contact area between the first connecting plate 21 and the connecting insulating layer 7 poured subsequently, in this embodiment, 7 through holes 4 are formed in the first connecting plate 21 at intervals, and the axis of each through hole 4 is perpendicular to the axis of the fixing hole 3. Connecting insulation layer 7 can adopt the mode integrated into one piece of pouring in first connecting plate 21 surface, and through-hole 4 has increased the area of contact between connecting insulation layer 7 and first connecting plate 21, and then increases the frictional force between the two, reduces connecting insulation layer 7 and the possibility that first connecting plate 21 breaks away from, and the reinforcing is lightning-arrest effect.
In order to further improve the connection stability of the connecting part 2 and the lightning protection mainline 6, the inner wall of the fixing hole 3 is a rough surface, and the rough surface is designed to increase the contact area between the inner wall of the fixing hole 3 and the lightning protection mainline 6, increase the friction force and enhance the lightning protection effect.
One end of the second connecting column 22, which is far away from the first connecting plate 21, is provided with a chamfer 5, the chamfer 5 is a chamfer angle, and since the outer sides of the connecting insulating layer 7 and the lightning main line 6 are also required to be sleeved with the insulating sleeve 9, the chamfer 5 is convenient for the insulating sleeve 9 to be sleeved on the outer side of the connecting insulating layer 7.
The implementation principle of the embodiment 1 is as follows: during on-site assembly, the exposed end of the lightning main line 6 is inserted into the fixing hole 3, the second connecting column 22 is flattened, the lightning main line 6 and the second connecting column 22 are connected in a compression joint mode into a whole, a bolt and a line nose are omitted, instability of manual installation of the bolt in a traditional connection mode is reduced, connection stability of the blade tip conducting part and the lightning main line 6 is improved, lightning protection effect is enhanced, and service life is prolonged.
Example 2
Referring to fig. 3, the tip conductive part differs from embodiment 1 in that the end of the second connection post 22 remote from the first connection post 21 is funnel-shaped, which facilitates the insulation sleeve 9 to be sleeved outside the connection insulation layer 7 at the second connection post 22.
The embodiment of the application also discloses a connecting structure of the blade tip conducting part and the lightning protection mainline. Referring to fig. 4-6, the connection structure of the tip conducting component and the lightning main line comprises the tip conducting component, and further comprises a lightning main line 6, a connection insulating layer 7, a main line insulating layer 8 and an insulating sleeve 9, wherein the lightning main line 6 is formed by twisting a plurality of copper wires, one end of the lightning main line 6 is inserted into the fixing hole 3, the second connecting column 22 is flattened, the lightning main line 6 and the second connecting column 22 are pressed into a whole, the connection insulating layer 7 is integrally formed on the surface of the connecting portion 2, the connection insulating layer 7 is made of an insulating resin material, the connection insulating layer 7 is filled and covers the through hole 4, the main line insulating layer 8 is wrapped on the surface of the lightning main line 6 far away from the end of the connecting portion 2, the main line insulating layer 8 is a commercially available conducting wire insulating sheath, one end of the insulating sleeve 9 is wrapped on the outer side of the connection insulating layer 7 of the second connecting column 22, and the other end of the insulating sleeve 9 is wrapped on the end of the main line insulating layer 8 close to the connecting portion 2, the insulating sleeve 9 is an insulating heat-shrinkable tube, the connecting insulating layer 7, the main line 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 and are convenient to process. When the lightning current is introduced from the blade tip conductive part, the lightning current sequentially passes through the connecting part 2 and the lightning main line 6 and is finally introduced into the ground, the connecting insulating layer 7 enables the connecting part 2 to be insulated from the wind power blade, the main line insulating layer 8 enables a conductive part of the lightning main line 6 to be insulated from the outside, and the insulating sleeve 9 covers a gap between the connecting insulating layer 7 and the main line insulating layer 8, so that the insulating property of the connecting part of the lightning main line 6 and the connecting part 2 is improved, and the lightning protection effect is enhanced.
The implementation principle of the connection structure of the tip conducting part and the lightning main line in the embodiment of the application is as follows: during the installation, insert the exposed one end of main line 6 of taking shelter from thunder in fixed orifices 3, flatten second spliced pole 22, make main line 6 of taking shelter from thunder and second spliced pole 22 crimping as an organic whole, behind the surperficial integrated into one piece connection insulating layer 7 of connecting portion 2, overlap the outside at the connection insulating layer 7 of second spliced pole 22 and main insulating layer 8 with insulating sleeve 9 cover, it is fixed that the heating makes insulating sleeve 9 shrink, this application can improve apex conductive parts and main line 6's stability of being connected, strengthen lightning-arrest effect, and 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 (9)
1. An electrically conductive tip component, characterized by: including apex conductive part (1) and connecting portion (2), the shape of apex conductive part (1) is identical with the apex shape of wind-powered electricity generation blade, apex conductive part (1) and connecting portion (2) fixed connection, fixed orifices (3) have been seted up to connecting portion (2) one end of keeping away from apex conductive part (1), fixed orifices (3) are the blind hole.
2. An electrically conductive tip component as defined in claim 1, wherein: connecting portion (2) include first connecting plate (21) and second spliced pole (22), the one end and apex conductive part (1) fixed connection of first connecting plate (21), the other end of first connecting plate (21) and the one end fixed connection of second spliced pole (22), the one end that first connecting plate (21) were kept away from in second spliced pole (22) is seted up in fixed orifices (3).
3. An electrically conductive tip component according to claim 2, wherein: the first connecting plate (21) is provided with at least one through hole (4).
4. An electrically conductive tip component according to claim 2, wherein: and a chamfer (5) is arranged at one end, far away from the first connecting plate (21), of the second connecting column (22).
5. An electrically conductive tip component according to claim 2, wherein: one end, far away from the first connecting plate (21), of the second connecting column (22) is funnel-shaped.
6. An electrically conductive tip component as defined in claim 1, wherein: the inner wall of the fixing hole (3) is a rough surface.
7. Apex conducting part and connection structure of lightning-arrest thread, its characterized in that: the blade tip conducting component comprises the blade tip conducting component according to any one of claims 1 to 6, and further comprises a lightning protection main line (6), a connecting insulating layer (7), a main line insulating layer (8) and an insulating sleeve (9), wherein one end of the lightning protection main line (6) is inserted into the fixing hole (3) and fixedly connected with the connecting portion (2), the connecting insulating layer (7) is wrapped on the surface of the connecting portion (2), the main line insulating layer (8) is wrapped on the surface of the lightning protection main line (6) far away from one end of the connecting portion (2), one end of the insulating sleeve (9) is wrapped on the outer side of the connecting insulating layer (7), and the other end of the insulating sleeve (9) is wrapped on one end of the main line insulating layer (8) close to the connecting portion (2).
8. The structure for connecting a tip conducting member to a main lightning conductor according to claim 7, wherein: the connection insulating layer (7), the main line insulating layer (8) and the insulating sleeve (9) are made of different materials.
9. The structure for connecting a tip conducting member to a main lightning conductor according to claim 7, wherein: the connecting insulating layer (7) is integrally connected to the surface of the connecting part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220541041.1U CN216922379U (en) | 2022-03-10 | 2022-03-10 | Apex conductive part and connection structure of apex conductive part and lightning protection mainline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220541041.1U CN216922379U (en) | 2022-03-10 | 2022-03-10 | Apex conductive part and connection structure of apex conductive part and lightning protection mainline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216922379U true CN216922379U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220541041.1U Expired - Fee Related CN216922379U (en) | 2022-03-10 | 2022-03-10 | Apex conductive part and connection structure of apex conductive part and lightning protection mainline |
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| Country | Link |
|---|---|
| CN (1) | CN216922379U (en) |
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2022
- 2022-03-10 CN CN202220541041.1U patent/CN216922379U/en not_active Expired - Fee Related
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Granted publication date: 20220708 |
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