CN203548074U - Lightning arrester on wind power generation hub - Google Patents
Lightning arrester on wind power generation hub Download PDFInfo
- Publication number
- CN203548074U CN203548074U CN201320730787.8U CN201320730787U CN203548074U CN 203548074 U CN203548074 U CN 203548074U CN 201320730787 U CN201320730787 U CN 201320730787U CN 203548074 U CN203548074 U CN 203548074U
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- China
- Prior art keywords
- current collection
- lightning
- collection disk
- carbon brush
- insulation board
- Prior art date
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- Expired - Lifetime
Links
- 238000010248 power generation Methods 0.000 title claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 37
- 238000009413 insulation Methods 0.000 claims description 32
- 230000005611 electricity Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 3
- 239000004020 conductor Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Wind Motors (AREA)
Abstract
The utility model discloses a lightning arrester on a wind power generation hub. The lightning arrester on the wind power generation hub comprises a fixed portion and a rotary portion, wherein the rotary portion comprises a lightning protection support I, an insulating plate I and an electricity colleting disc, the electricity colleting disc is fixed on the insulating plate I, the electricity colleting disc is completely insulated from a rotary ring of a variable-pitch bearing through the insulating plate I, the fixed portion comprises a carbon brush, an electricity collecting clamp, an insulating plate II, a lightning protection support II and a discharging rack, the carbon brush, the discharging rack and the electricity collecting clamp are fixed to the insulating plate II, and the carbon brush, the discharging rack and the electricity collecting clamp are completely insulated from the hub through the insulating plate II. According to the lightning arrester on the wind power generation hub, due to the fact that the rotary portion of the lighting arrester is completely insulated from the variable-pitch bearing and the fixed portion of the lighting arrester is completely insulated from the hub, the variable-pitch bearing is completely protected from thunder and lightning, the manufacturing processes of the variable-pitch bearing are simplified, and the danger of electric corrosion of thunder and lightning is reduced; due to the fact that the electricity collecting disc is arranged in the rotating center of the rotary ring of the variable-pitch bearing, it is guaranteed that the carbon brush and the electricity collecting disc are in rotary contact in the rotating center all the time, the contact stroke is small, and friction is reduced.
Description
Technical field
The utility model relates to a kind of hub of wind power generator lightning arrester.
Background technique
It is the region larger in thunder and lightning density that there is considerable part region wind power generating set mounting zone.Blade tip height can reach more than hundred meters, is easily struck by lightning, and can cause in various degree wind power generation unit blade damage, bearing damage, and generator insulating is breakdown, the phenomenons such as electric components burns, unit signal interruption.
At present in wind generator unit wheel hub wind-powered electricity generation shocking preventing technology, the main direct lightning protection path of flexible circuit conductor that adopts contacts two kinds of modes of lightning protection path with pitch variable bearings carbon brush, for flexible circuit conductor, directly connect lightning protection path, blade lightning-protection wire is directly connected with generator is lightning-arrest by flexible circuit conductor, during vane propeller-changing, flexible circuit conductor possesses the length compensation of torsional direction, because flexible circuit conductor exists length compensation, flexible circuit conductor moment whipping when wind wheel rotates, in the course of time flexible circuit conductor often gets rid of disconnected fault, has a strong impact on the logical grounded circuit of blade lightning-protection.For pitch variable bearings carbon brush contact lightning protection path, blade lightning-protection wire is directly connected with pitch variable bearings and is connected with pitch variable bearings sliding contact and generator are lightning-arrest by carbon brush, owing to being directly connected with pitch variable bearings, during pitch variable bearings design, must consider emphatically pitch variable bearings Internal and external cycle insulation processing, while dealing with improperly, pitch variable bearings certainly exists thunder and lightning galvanic corrosion, pitch variable bearings manufacturing process control difficulty is large, high in cost of production shortcoming, due to by carbon brush and the sliding contact of oar bearing, carbon brush contacting travel is large, aggravated carbon brush abrasion, maintenance cost is high.
Model utility content
The purpose of this utility model is to overcome above defect, provide a kind of be arranged on wind generator unit wheel hub simple in structure, reliability is high, safeguard simple wind power generation hub lightning arrester.
The utility model is achieved through the following technical solutions: a kind of wind power generation hub lightning arrester, it comprises standing part and rotating part, described rotating part comprises lightning-arrest support I, insulation board I, current collection disk, one end and the pitch variable bearings turning collar of lightning-arrest support I are fixed together, the other end and the insulation board I of lightning-arrest support I are fixed together, current collection disk is fixed in insulation board I, and insulation board I insulate current collection disk and pitch variable bearings turning collar completely.Described standing part comprises carbon brush, current collection folder and insulation board II, lightning-arrest support II, electric discharge tooth bar, one end and the wheel hub of lightning-arrest support II are fixed together, the other end and the insulation board II of lightning-arrest support II are fixed together, carbon brush, electric discharge tooth bar, current collection folder are fixed in insulation board II, carbon brush is placed in the top of insulation board II, current collection is folded in carbon brush below, and carbon brush connects by electric discharge tooth bar with current collection folder, and insulation board II insulate carbon brush, electric discharge tooth bar, current collection folder completely with wheel hub.
The current collection disk of the carbon brush of described standing part and rotating part is all the time in pitch variable bearings turning collar rotating center position, and rotating contact all the time.
The electric discharge tooth bar of described standing part is pointed dentation structure, thunder and lightning by time form " point discharge " phenomenon.
In order to be beneficial to installation, described current collection disk is divided into current collection disk and lower current collection disk, upper current collection disk and lower current collection disk are separately fixed on two end faces up and down of insulation board, wire links together the blade tip lightning receptor of blade and upper current collection disk, the carbon brush rotating contact of described lower current collection disk and standing part.
Effect of the present utility model is, because lightning arrester rotating part and lightning arrester standing part insulate completely with pitch variable bearings and wheel hub respectively, thereby guarantee that thunder and lightning avoids pitch variable bearings completely, reduced the danger of pitch variable bearings manufacturing process and thunder and lightning galvanic corrosion, due to the current collection disk of rotation is placed in to pitch variable bearings turning collar rotating center position, thereby guarantee that carbon brush and current collection disk are all the time at rotating center position rotating contact, contacting travel is very little, reduced friction, maintenance reduces.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 is the utility model embodiment wheel hub inner structure schematic diagram;
Fig. 3 is the utility model embodiment lightning arrester rotating part structural representation;
Fig. 4 is the utility model embodiment lightning arrester standing part structural representation.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
With reference to accompanying drawing, a kind of wind power generation hub lightning arrester, it comprises rotating part 3 and standing part 4.Described rotating part 3 comprises lightning-arrest support I 14, insulation board I 15, current collection disk I 16, current collection disk II 17.One end and pitch variable bearings 6 turning collars of lightning-arrest support I 14 are fixed together, and the other end and the insulation board I 15 of lightning-arrest support I 14 are fixed together, and current collection disk I 16, current collection disk II 17 are separately fixed at insulation board I 15 both sides.Insulation board I 15 insulate current collection disk I 16, current collection disk II 17 completely with pitch variable bearings 6 turning collars.Described standing part 4 comprises carbon brush 7, current collection folder 8, insulation board II 12, lightning-arrest support II 13, electric discharge tooth bar 11.One end and the wheel hub 5 of lightning-arrest support II 13 are fixed together, and the other end and the insulation board II 12 of lightning-arrest support II 13 are fixed together.Carbon brush 7, electric discharge tooth bar 11, current collection folder 8 are fixed in insulation board II 12, and carbon brush 7 is placed in the top of insulation board II 12, and current collection folder 8 is placed in carbon brush 7 belows, and carbon brush 7 connects by electric discharge tooth bar 11 with current collection folder 8.Insulation board II 12 insulate carbon brush 7, electric discharge tooth bar 11, current collection folder 8 completely with wheel hub 5.
The carbon brush 7 of described standing part 4 with the current collection disk I 16 of rotating part 3, current collection disk II 17 all the time in pitch variable bearings 6 turning collar rotating center positions, and rotating contact all the time.
The electric discharge tooth bar 11 of described standing part 4 is pointed dentation structure, thunder and lightning by time form " point discharge " phenomenon.Electric current, by after wire fixing device 9, flows to generator lightning arrester along wire 10.
In order to be beneficial to installation, current collection disk I 16, current collection disk II 17 are separately fixed on two end faces up and down of insulation board 15, current collection disk I 16, current collection disk II 17 connect by clamping bolt, wire links together the blade tip lightning receptor of blade 21 and current collection disk I 16, carbon brush 7 rotating contacts of current collection disk II 17 and standing part 4.
Because lightning arrester rotating part 3 and lightning arrester standing part 4 insulate completely with pitch variable bearings 6 and wheel hub 5 respectively, thereby guarantee that thunder and lightning avoids pitch variable bearings 6 completely, reduced the danger of pitch variable bearings 6 manufacturing process and thunder and lightning galvanic corrosion, owing to the current collection disk I 16 of rotation, current collection disk II 17 being placed in to pitch variable bearings 6 turning collar rotating center positions, thereby guarantee that carbon brush 7 and current collection disk II 17 are all the time at rotating center position rotating contact, contacting travel is very little, has reduced friction, and maintenance reduces.
Claims (5)
1. a wind power generation hub lightning arrester, it comprises standing part and rotating part, it is characterized in that, described rotating part comprises lightning-arrest support I, insulation board I, current collection disk, one end and the pitch variable bearings turning collar of lightning-arrest support I are fixed together, the other end and the insulation board I of lightning-arrest support I are fixed together, current collection disk is fixed in insulation board I, insulation board I insulate current collection disk and pitch variable bearings turning collar completely, described standing part comprises carbon brush, current collection folder and insulation board II, lightning-arrest support II, electric discharge tooth bar, one end and the wheel hub of lightning-arrest support II are fixed together, the other end and the insulation board II of lightning-arrest support II are fixed together, carbon brush, electric discharge tooth bar, current collection folder is fixed in insulation board II, carbon brush is placed in the top of insulation board II, current collection is folded in carbon brush below, carbon brush connects by electric discharge tooth bar with current collection folder, insulation board II is by carbon brush, electric discharge tooth bar, current collection folder insulate completely with wheel hub.
2. a kind of wind power generation hub lightning arrester according to claim 1, is characterized in that, the current collection disk of the carbon brush of described standing part and rotating part is all the time in pitch variable bearings turning collar rotating center position, and rotating contact all the time.
3. according to claim 1 or a kind of wind power generation hub lightning arrester claimed in claim 2, it is characterized in that, the electric discharge tooth bar of described standing part is pointed dentation structure.
4. according to claim 1 or a kind of wind power generation hub lightning arrester claimed in claim 2, it is characterized in that, described current collection disk is divided into current collection disk and lower current collection disk, upper current collection disk and lower current collection disk are separately fixed on two end faces up and down of insulation board, wire links together the blade tip lightning receptor of blade and upper current collection disk, the carbon brush rotating contact of described lower current collection disk and standing part.
5. a kind of wind power generation hub lightning arrester according to claim 3, it is characterized in that, described current collection disk is divided into current collection disk and lower current collection disk, upper current collection disk and lower current collection disk are separately fixed on two end faces up and down of insulation board, wire links together the blade tip lightning receptor of blade and upper current collection disk, the carbon brush rotating contact of described lower current collection disk and standing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320730787.8U CN203548074U (en) | 2013-11-19 | 2013-11-19 | Lightning arrester on wind power generation hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320730787.8U CN203548074U (en) | 2013-11-19 | 2013-11-19 | Lightning arrester on wind power generation hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548074U true CN203548074U (en) | 2014-04-16 |
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ID=50466201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320730787.8U Expired - Lifetime CN203548074U (en) | 2013-11-19 | 2013-11-19 | Lightning arrester on wind power generation hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548074U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265566A (en) * | 2014-09-15 | 2015-01-07 | 国家电网公司 | Lightning protection device of pitch control system accessories |
| CN104863800A (en) * | 2015-05-29 | 2015-08-26 | 张瑞恩 | Fan blade lighting protection device |
| CN108869201A (en) * | 2018-06-29 | 2018-11-23 | 北京金风科创风电设备有限公司 | Lightning protection device and wind generating set |
| CN113586328A (en) * | 2021-06-01 | 2021-11-02 | 国电联合动力技术有限公司 | Wind wheel subassembly and fan |
| CN116576079A (en) * | 2023-05-23 | 2023-08-11 | 上海玻璃钢研究院东台有限公司 | Blade lightning arrester of wind driven generator |
-
2013
- 2013-11-19 CN CN201320730787.8U patent/CN203548074U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265566A (en) * | 2014-09-15 | 2015-01-07 | 国家电网公司 | Lightning protection device of pitch control system accessories |
| CN104863800A (en) * | 2015-05-29 | 2015-08-26 | 张瑞恩 | Fan blade lighting protection device |
| CN108869201A (en) * | 2018-06-29 | 2018-11-23 | 北京金风科创风电设备有限公司 | Lightning protection device and wind generating set |
| CN108869201B (en) * | 2018-06-29 | 2019-08-30 | 北京金风科创风电设备有限公司 | Lightning protection device and wind generating set |
| CN113586328A (en) * | 2021-06-01 | 2021-11-02 | 国电联合动力技术有限公司 | Wind wheel subassembly and fan |
| CN113586328B (en) * | 2021-06-01 | 2024-01-30 | 国电联合动力技术有限公司 | Wind wheel assembly and fan |
| CN116576079A (en) * | 2023-05-23 | 2023-08-11 | 上海玻璃钢研究院东台有限公司 | Blade lightning arrester of wind driven generator |
| CN116576079B (en) * | 2023-05-23 | 2023-11-17 | 上海玻璃钢研究院东台有限公司 | Blade lightning arrester of wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
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| CX01 | Expiry of patent term |