CN203645138U - Large-scale blunt type aluminium blade tip lightning arrester - Google Patents
Large-scale blunt type aluminium blade tip lightning arrester Download PDFInfo
- Publication number
- CN203645138U CN203645138U CN201320661886.5U CN201320661886U CN203645138U CN 203645138 U CN203645138 U CN 203645138U CN 201320661886 U CN201320661886 U CN 201320661886U CN 203645138 U CN203645138 U CN 203645138U
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- blade tip
- conductive plate
- lightning arrester
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- aluminium blade
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- Elimination Of Static Electricity (AREA)
Abstract
The utility model discloses a large-scale blunt type aluminium blade tip lightning arrester used for thunder protection of a wind generating set; the large-scale blunt type aluminium blade tip lightning arrester comprises a conductive plate and an aluminium blade tip pre-buried in a wind generator glass fiber reinforced plastic blade; the conductive plate and the aluminium blade tip are connected and detachably arranged through connecting bolts; the lightning arrester also comprises a vertical terminal used for connecting a lightning conductor into the conductive plate; the vertical terminal is arranged on the bottom of the conductive plate; the number of the connecting bolts is preferably to be at least two; the plate body of the conductive plate is provided with a penetration through hole vertical to the bottom; the penetration through hole is formed by a screw hole segment positioned on an upper portion of the conductive plate body and a through hole segment positioned on a lower portion of the plate body; a steel wire screw sleeve is arranged in the screw hole segment; a positioning shaft sleeve is arranged in the through hole segment. The large-scale blunt type aluminium blade tip lightning arrester is good in lightning effect, light in aluminium blade tip weight, convenient in installation, even if the aluminium blade tip is damaged by the thunder, the whole blade needs not to be changed, thereby reducing economic cost.
Description
Technical field
The utility model relates to a kind of lightning arrester of blade of wind-driven generator, especially relates to a kind of lightning arrester of large-scale blunt type aluminium blade tip blade, belongs to technical field of wind power generation.
Background technology
In wind turbine generator functional reliability, most critical key element is exactly lightning protection.Along with the increase of wind power generation height and generator power, the probability of thunderbolt wind energy conversion system also can increase, and the most dangerous in wind-force parts is fan blade, and therefore the design of the lightning arrester of blade is particularly important.
At present, the method of the installation lightning arrester conventionally adopting is: first in blade production process at the each conductive plate of nuzzling in advance of blade tip and blade position, after fixing with die-closing adhesive, lightning conducter is accessed to the cold pressing connection terminal of conductive plate, finally will on conductive plate, paste glass-fiber-fabric over again.After vane mold matching solidifies, then in the punching of conductive plate relevant position, knock in conductive pole as arrester, thereby realize the lightning function of blade.
But, adopt this kind of lightning arrester, in real work, there is following shortcoming:
(1) this lightning arrester is in blade production process, and operation relative complex is punched after solidifying, and very likely the resistance of whole lightning protection system is increased, thereby easily causes conduction bad;
(2) the conductive pole area of this lightning arrester is little, in meeting with thunderbolt, easily hits at blade tip position, causes the damage of blade;
(3) adopting the blade of this lightning arrester, caused the damage of blade tip if meet with to be struck by lightning, will be expendable, can only carry out the replacing of whole blade, therefore will expend a large amount of manpower and financial resources.
Summary of the invention
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, a kind of more reasonable structure is provided, the large-scale blunt type aluminium blade tip lightning arrester of more convenient and lightning-arrest better effects if is installed.
For solving the problems of the technologies described above; the utility model adopts so a kind of large-scale blunt type aluminium blade tip lightning arrester; be used for the lightning protected of wind turbine generator; comprise the conductive plate and the aluminium blade tip that are embedded in wind-driven generator fiberglass blade; thereby described conductive plate is connected and is removably mounted on together by connecting bolt with aluminium blade tip; this lightning arrester also comprises that one for accessing lightning conducter the vertical terminals of described conductive plate, and this vertical terminals is arranged on the bottom surface of described conductive plate.
Connecting bolt quantity described in the utility model preferably has two at least.
As a kind of preferred implementation of the present utility model, be provided with the through hole portion perpendicular to bottom surface with it at the plate of described conductive plate, described through hole portion is made up of the through hole section that is positioned at the screw section of conductive plate plate body and is positioned at plate body bottom, in described screw section, be provided with steel-wire screw-socket, in through hole section, be provided with positioning shaft sleeve, thereby described conductive plate and aluminium blade tip are by connecting bolt and through together with described steel-wire screw-socket is removably mounted on.
In the utility model, described steel-wire screw-socket is preferably the steel-wire screw-socket with auto-lock function.
Adopt after said structure, the utlity model has following beneficial effect:
Whole aluminium blade tip of the present utility model is as an arrester, and contact area is large, thereby has guaranteed better to take shelter from the thunder effect.And aluminium blade tip is lightweight, the entirety 3kg that only has an appointment, installs easily.
Thereby due to conductive plate and aluminium blade tip be removably mounted on by connecting bolt together with, therefore, even if aluminium blade tip is broken by thunder and lightning, also can conveniently change, and not need to change whole blade, thereby reduce economic cost.
The utility model adopts after steel-wire screw-socket, can strengthened thread intensity, improve the stable connection of connecting bolt.In addition, steel-wire screw-socket of the present utility model, preferably with auto-lock function, makes the connection of connecting bolt more firm like this, more difficult loosening.
The utility model adopts after positioning shaft sleeve, can realize aluminium blade tip and be connected exactly with conductive plate fast and easy.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is a kind of exploded perspective view of the large-scale blunt type aluminium blade tip lightning arrester of the utility model.
Fig. 2 is that the master of the large-scale blunt type aluminium blade tip lightning arrester of the utility model looks schematic diagram.
Fig. 3 is the cross-sectional schematic along A-A line in Fig. 2.
Embodiment
Referring to the large-scale blunt type aluminium blade tip lightning arrester of a kind of MW class shown in Fig. 1 to Fig. 3; be used for the lightning protected of wind turbine generator; comprise the conductive plate 1 and the aluminium blade tip 2 that are embedded in wind-driven generator fiberglass blade; thereby described conductive plate 1 is connected and is removably mounted on together by connecting bolt 3 with aluminium blade tip 2; this lightning arrester also comprises that one for accessing lightning conducter the vertical terminals 4 of described conductive plate 1, and this vertical terminals 4 is arranged on the bottom surface 1-1 of described conductive plate 1 by holding screw 9.
In the utility model, as shown in Figure 1, the quantity of described connecting bolt 3 preferably has two at least.
As a kind of preferred implementation of the present utility model, as shown in Figure 3, be provided with the through hole portion perpendicular to bottom surface 1-1 with it at the plate of described conductive plate 1, described through hole portion is made up of the through hole section 6 that is positioned at the screw section 5 of conductive plate 1 plate body and is positioned at plate body bottom, in described screw section 5, be provided with steel-wire screw-socket 7, in through hole section 6, be provided with positioning shaft sleeve 8, thereby described conductive plate 1 and aluminium blade tip 2 are by connecting bolt 3 and through together with described steel-wire screw-socket 7 is removably mounted on.Described steel-wire screw-socket 7 is preferably the commercially available steel-wire screw-socket with auto-lock function.
The installation steps of this lightning arrester are as follows, in the time of leaf production, positioning shaft sleeve 8 is embedded in the through hole section 6 of conductive plate 1, again vertical terminals 4 is adopted holding screw 9 to be fixed on positioning shaft sleeve 8 places, then conductive plate 1 is embedded in advance to the corresponding position of fiberglass blade, smear after die-closing adhesive, lightning conducter is accessed in the vertical terminals 4 of conductive plate bottom surface 1-1, vane mold matching, curing, moulding.In the screw section 5 of conductive plate 1, pack steel-wire screw-socket 7 into, then the blade cuts after forming is fallen to fraction blade tip, two connecting bolts 3 are inserted in the through hole portion of conductive plate 1 from the upper end of aluminium blade tip 2, connecting bolt 3 is tightened, until aluminium blade tip 2 is just connected with fiberglass blade, finally, coat fluid sealant in junction.
Claims (4)
1. one kind large-scale blunt type aluminium blade tip lightning arrester; be used for the lightning protected of wind turbine generator; comprise the conductive plate (1) and the aluminium blade tip (2) that are embedded in wind-driven generator fiberglass blade; it is characterized in that: described conductive plate (1) with aluminium blade tip (2) by connecting bolt (3) thus be connected and be removably mounted on together; this lightning arrester also comprises that one for accessing lightning conducter the vertical terminals (4) of described conductive plate (1), and this vertical terminals (4) is arranged on the bottom surface (1-1) of described conductive plate (1).
2. large-scale blunt type aluminium blade tip lightning arrester according to claim 1, is characterized in that: the quantity of described connecting bolt (3) has two at least.
3. large-scale blunt type aluminium blade tip lightning arrester according to claim 1, it is characterized in that: be provided with the through hole portion perpendicular to bottom surface (1-1) with it at the plate of described conductive plate (1), described through hole portion is made up of the through hole section (6) that is positioned at the screw section (5) of conductive plate (1) plate body and is positioned at plate body bottom, in described screw section (5), be provided with steel-wire screw-socket (7), in through hole section (6), be provided with positioning shaft sleeve (8), described conductive plate (1) and aluminium blade tip (2) by connecting bolt (3) and through described steel-wire screw-socket (7) thus be removably mounted on together.
4. large-scale blunt type aluminium blade tip lightning arrester according to claim 3, is characterized in that: described steel-wire screw-socket (7) is the steel-wire screw-socket with auto-lock function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661886.5U CN203645138U (en) | 2013-10-25 | 2013-10-25 | Large-scale blunt type aluminium blade tip lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661886.5U CN203645138U (en) | 2013-10-25 | 2013-10-25 | Large-scale blunt type aluminium blade tip lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645138U true CN203645138U (en) | 2014-06-11 |
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ID=50876359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320661886.5U Expired - Lifetime CN203645138U (en) | 2013-10-25 | 2013-10-25 | Large-scale blunt type aluminium blade tip lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203645138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109642552A (en) * | 2016-07-29 | 2019-04-16 | 维斯塔斯风力系统有限公司 | Wind turbine blade with thunder and lightning top end receiver |
-
2013
- 2013-10-25 CN CN201320661886.5U patent/CN203645138U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109642552A (en) * | 2016-07-29 | 2019-04-16 | 维斯塔斯风力系统有限公司 | Wind turbine blade with thunder and lightning top end receiver |
| CN109642552B (en) * | 2016-07-29 | 2021-05-25 | 维斯塔斯风力系统有限公司 | Wind turbine blade with lightning tip receptor |
| US11248588B2 (en) | 2016-07-29 | 2022-02-15 | Vestas Wind Systems A/S | Wind turbine blade having a lightning tip receptor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 213164 Jiangsu province Changzhou Fenglin Wujin high tech Industrial Development Zone, Road No. 199-1 Patentee after: Jiangsu New United Heavy Industry Science & Technology Co., Ltd. Address before: 213164 Jiangsu city of Changzhou province were Wujin high tech Industrial Development Zone, Road No. 68 Patentee before: Jiangsu New United Heavy Industry Science & Technology Co., Ltd. |