CN202991366U - Device for guiding lightening current of root of blade of wind driven generator - Google Patents
Device for guiding lightening current of root of blade of wind driven generator Download PDFInfo
- Publication number
- CN202991366U CN202991366U CN2012207362777U CN201220736277U CN202991366U CN 202991366 U CN202991366 U CN 202991366U CN 2012207362777 U CN2012207362777 U CN 2012207362777U CN 201220736277 U CN201220736277 U CN 201220736277U CN 202991366 U CN202991366 U CN 202991366U
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- China
- Prior art keywords
- blade root
- hole
- blade
- support
- wind power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Y02E10/722—
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- Wind Motors (AREA)
Abstract
The utility model discloses a device for guiding lightening current of a root of a blade of a wind driven generator. The bottom of a support is provided with a circular through hole, and a conducting ring is sleeved in the middle of the circular through hole; a blade pin connection terminal is arranged at one end of a conducting shaft, and the other end with a thread and a shaft shoulder penetrates through a hole on a blade root insulation platform, a hole on an installation plate and the conducting ring to extend out of the circular through hole on the bottom of the support; the conducting ring and the installation plate are pressed on the shaft shoulder of the conducting shaft through nuts; the installation plate is fixed on the blade root insulation platform; the conducting ring and the conducting shaft are tightly matched with each other; the support and the conducting ring are in clearance fit with each other; and the support can rotatably slide around t the conducing ring. The lightening current received by the blade can be continuously and directly transferred to a hub without flowing through a variable pitch bearing, so that the damage of the lightening current to the variable pitch bearing can be avoided, the lightening current can be conducted effectively, and the lightening protection effect of the blade of the a wind generation set can be guaranteed.
Description
Technical field
The utility model relates to wind generating technology and equipment technical field, especially relates to a kind of wind power generator blade root lightning current guide device.
Background technique
Existing blade of wind-driven generator generally has thunder carrying-off device at the blade tip position; after thunder and lightning hits thunder carrying-off device; lightning current is delivered to the metal flange of root of blade by down lead; then pass to the pitch variable bearings inner ring that is connected with flange; pass through successively the pitch variable bearings ball, the pitch variable bearings outer ring is delivered to wheel hub and completes lightning protection.The deficiency of this scheme is that lightning current need to pass through critical component pitch variable bearings ball, easily causes bearing generation electro erosion, finally causes pitch variable bearings to damage.
The model utility content
The purpose of this utility model is to design a kind of novel wind power generator blade root lightning current guide device, addresses the above problem.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of wind power generator blade root lightning current guide device comprises metallic cable fixture block, support, conductive hoop, conductive shaft, mounting plate and blade root insulated platform, and the bottom of described support has round tube hole, and the middle cover of described round tube hole has described conductive hoop; One end of described conductive shaft is provided with the blade lead connecting terminal, threaded and the other end shaft shoulder passes perforate and the described conductive hoop of the perforate on described blade root insulated platform, described mounting plate, stretch out the round tube hole of described frame bottom, described conductive hoop and described mounting plate are pressed on by nut on the shaft shoulder of described conductive shaft, and described mounting plate is fixed on described blade root insulated platform; Closely cooperate between described conductive hoop and described conductive shaft, described support and described conductive hoop Spielpassung, described support arranges around described conductive hoop rotary sliding.
Threaded and the end shaft shoulder of described conductive shaft is provided with conduction and draws the hole, and described metallic cable fixture block and described conduction are drawn the hole and be oppositely arranged.
Also comprise be arranged on hub side draw the thunder wire, described metal guide battery core of drawing the thunder wire is clamped on described metallic cable fixture block and is electrically connected to.
Described conduction is drawn the diameter in hole greater than the described diameter that draws metal guide battery core in the thunder wire, and described metal guide battery core stretches into described conduction draws in the hole, and and described conduction draw gapped setting between the inwall in hole.
Also comprise the insulated cable fixture block, described insulated cable fixture block is fixed on described support, and the described insulation sheath that draws the thunder wire is clamped on described insulated cable fixture block.
Described conductive hoop is conduction steel loop or copper ring.
Also comprise the blade down lead, described blade down lead is electrically connected to described blade lead connecting terminal.
Described mounting plate is bolted on described blade root insulated platform.
The beneficial effects of the utility model can be summarized as follows:
1, the utility model is installed a rotary slip ring mechanism at root of blade circle center, and round end is connected with the blade down lead, and fixed end is connected with wheel hub, and lightning current can be avoided pitch variable bearings by slip ring mechanism, is directly delivered to wheel hub and completes lightning protection.Thereby effectively protect pitch variable bearings not damaged by lightning current.
2, in the utility model, lightning current can also draw the thunder wire by what conduction drew that the hole is directly passed to hub side, plays the effect of double shield
3, the thunder-strike current that the utility model can make blade receive can continually directly not be delivered to wheel hub by pitch variable bearings yet, not only avoid the infringement of lightning current to pitch variable bearings, also effectively conducted thunder-strike current, guaranteed the lightning-arrest effect of wind power generation unit blade.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure, the 1-mounting plate, the 2-conductive shaft, the 3-conductive hoop, the 4-support, 5-metallic cable fixture block, 6-insulated cable fixture block, 7-blade root insulated platform, 8-blade down lead, 9-draws the thunder wire, the 10-nut.
Embodiment
Clearer for technical problem, technological scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
A kind of wind power generator blade root lightning current guide device as shown in Figure 1, comprise metallic cable fixture block 5, support 4, conductive hoop 3, conductive shaft 2, mounting plate 1 and blade root insulated platform 7, the bottom of described support 4 has round tube hole, and the middle cover of described round tube hole has described conductive hoop 3; One end of described conductive shaft 2 is provided with the blade lead connecting terminal, threaded and the other end shaft shoulder passes the perforate on described blade root insulated platform 7, perforate and the described conductive hoop 3 of described mounting plate 1, stretch out the round tube hole of described support 4 bottoms, described conductive hoop 3 is pressed on by nut on the shaft shoulder of described conductive shaft 2 with described mounting plate 1, and described mounting plate 1 is fixed on described blade root insulated platform 7; Closely cooperate between described conductive hoop 3 and described conductive shaft 2, described support 4 and described conductive hoop 3 Spielpassung, described support 4 is around described conductive hoop 3 rotary sliding settings.Threaded and the end shaft shoulder of described conductive shaft 2 is provided with conduction and draws the hole, and described metallic cable fixture block 5 draws the hole with described conduction and is oppositely arranged.Described wind power generator blade root lightning current guide device also comprise be arranged on hub side draw thunder wire 9, described metal guide battery core of drawing thunder wire 9 is clamped on described metallic cable fixture block 5 and is electrically connected to.Described conduction is drawn the diameter in hole greater than the described diameter that draws metal guide battery core in the thunder wire, and described metal guide battery core stretches into described conduction draws in the hole, and and described conduction draw gapped setting between the inwall in hole.
In the embodiment who is more preferably, described wind power generator blade root lightning current guide device also comprises insulated cable fixture block 6, described insulated cable fixture block 6 is fixed on described support 4, and the described insulation sheath that draws the thunder wire is clamped on described insulated cable fixture block 6.Described conductive hoop 3 is conduction steel loop or copper ring.Described wind power generator blade root lightning current guide device also comprises blade down lead 8, and described blade down lead 8 is electrically connected to described blade lead connecting terminal.Described mounting plate 1 is bolted on described blade root insulated platform 7.
during use, the thunder wire 9 that draws of hub side is fixed on support 4 by insulated cable fixture block 6, its metal guide body is by being arranged on the metallic cable fixture block 5 and support 4 conductings on support 4, support 4 bottoms have round tube hole, middle cover has conductive hoop 3, conductive shaft 2 one ends are connected blade down lead 8 with splicing ear by bolt, threaded and the other end shaft shoulder passes the blade root insulated platform 7 of blade root circle center drilling, the mounting plate 1 of perforate, support 4 and conductive hoop 3, the shaft shoulder by nut collar and conductive shaft 2 clamps conductive hoop 3 and mounting plate 1, mounting plate 1 is bolted on blade root insulated platform 7, its medium-height trestle 4 can rotate around conductive shaft 2.This device is arranged on the round center of blade root insulated platform 7.
When blade of wind-driven generator became the oar rotation, mounting plate 1, conductive shaft 2, conductive hoop 3 rotated with respect to wheel hub together with blade, and support 4 is motionless with respect to wheel hub with the wire of hub side.Conductive hoop 3 closely cooperates with conductive shaft 2, support 4 and conductive hoop 3 Spielpassung, and support 4 can be around conductive hoop 3 rotational slides.Lightning current by 8 conduction of blade down lead is realized uninterrupted conduction by conductive shaft 2, conductive hoop 3, support 4 to the hub side wire; the impact that not rotated by vane propeller-changing; also effectively avoided pitch variable bearings; prevent that lightning current from producing corrosion to pitch variable bearings, effectively protects wind power generating set lightning protection safety.
More than by the detailed description of concrete and preferred embodiment the utility model; but those skilled in the art should be understood that; the utility model is not limited to the above embodiment; all within spirit of the present utility model and principle; any modification of doing, be equal to replacement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. wind power generator blade root lightning current guide device, it is characterized in that, comprise metallic cable fixture block, support, conductive hoop, conductive shaft, mounting plate and blade root insulated platform, the bottom of described support has round tube hole, and the middle cover of described round tube hole has described conductive hoop; One end of described conductive shaft is provided with the blade lead connecting terminal, threaded and the other end shaft shoulder passes perforate and the described conductive hoop of the perforate on described blade root insulated platform, described mounting plate, stretch out the round tube hole of described frame bottom, described conductive hoop and described mounting plate are pressed on by nut on the shaft shoulder of described conductive shaft, and described mounting plate is fixed on described blade root insulated platform; Closely cooperate between described conductive hoop and described conductive shaft, described support and described conductive hoop Spielpassung, described support arranges around described conductive hoop rotary sliding.
2. wind power generator blade root lightning current guide device according to claim 1 is characterized in that: the threaded and end shaft shoulder of described conductive shaft is provided with conduction and draws the hole, and described metallic cable fixture block and described conduction are drawn the hole and be oppositely arranged.
3. the wind power generator blade root lightning current guide device of stating according to claim 2 is characterized in that: also comprise be arranged on hub side draw the thunder wire, described metal guide battery core of drawing the thunder wire is clamped on described metallic cable fixture block and is electrically connected to.
4. the wind power generator blade root lightning current guide device of stating according to claim 3, it is characterized in that: described conduction is drawn the diameter in hole greater than the described diameter that draws metal guide battery core in the thunder wire, described metal guide battery core stretches into described conduction draws in the hole, and and described conduction draw gapped setting between the inwall in hole.
5. wind power generator blade root lightning current guide device according to claim 3, it is characterized in that: also comprise the insulated cable fixture block, described insulated cable fixture block is fixed on described support, and the described insulation sheath that draws the thunder wire is clamped on described insulated cable fixture block.
6. the wind power generator blade root lightning current guide device of stating according to claim 1 is characterized in that: described conductive hoop is conduction steel loop or copper ring.
7. wind power generator blade root lightning current guide device according to claim 1, it is characterized in that: also comprise the blade down lead, described blade down lead is electrically connected to described blade lead connecting terminal.
8. wind power generator blade root lightning current guide device according to claim 1, it is characterized in that: described mounting plate is bolted on described blade root insulated platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207362777U CN202991366U (en) | 2012-12-27 | 2012-12-27 | Device for guiding lightening current of root of blade of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207362777U CN202991366U (en) | 2012-12-27 | 2012-12-27 | Device for guiding lightening current of root of blade of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991366U true CN202991366U (en) | 2013-06-12 |
Family
ID=48562552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207362777U Withdrawn - After Issue CN202991366U (en) | 2012-12-27 | 2012-12-27 | Device for guiding lightening current of root of blade of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991366U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899496A (en) * | 2012-12-27 | 2014-07-02 | 北京万源工业有限公司 | Blade root lightning current conducting device of wind turbine |
| WO2019228971A1 (en) * | 2018-05-28 | 2019-12-05 | Lm Wind Power International Technology Ii Aps | Connecting element for a lightning protection system of a wind turbine blade |
| CN114131317A (en) * | 2022-01-12 | 2022-03-04 | 连云港中复连众复合材料集团有限公司 | Installation method of lightning receptor of wind power blade |
-
2012
- 2012-12-27 CN CN2012207362777U patent/CN202991366U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899496A (en) * | 2012-12-27 | 2014-07-02 | 北京万源工业有限公司 | Blade root lightning current conducting device of wind turbine |
| CN103899496B (en) * | 2012-12-27 | 2017-09-05 | 北京万源工业有限公司 | A kind of wind power generator blade root lightning current guiding device |
| WO2019228971A1 (en) * | 2018-05-28 | 2019-12-05 | Lm Wind Power International Technology Ii Aps | Connecting element for a lightning protection system of a wind turbine blade |
| US11795919B2 (en) | 2018-05-28 | 2023-10-24 | Lm Wind Power International Technology Ii Aps | Connecting element for a lightning protection system of wind turbine blade |
| CN114131317A (en) * | 2022-01-12 | 2022-03-04 | 连云港中复连众复合材料集团有限公司 | Installation method of lightning receptor of wind power blade |
| CN114131317B (en) * | 2022-01-12 | 2022-11-29 | 连云港中复连众复合材料集团有限公司 | Installation method of lightning receptor of wind power blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130612 Effective date of abandoning: 20170905 |