CN219034919U - Stably-protected lightning-proof grounding device of wind driven generator - Google Patents

Abstract

The utility model relates to the technical field of generator sets and discloses a lightning protection grounding device of a stably protected wind driven generator, which comprises a wind driven generator main body, a rotating rod, fan blades, cabin lightning rods and a grounding wire, wherein a conducting tube is fixedly arranged on the rod wall of the rotating rod, the fan blade lightning rods are fixedly arranged at the blade tips of the fan blades, the fan blade lightning rods and the conducting tube are electrically connected through an L-shaped conducting wire, an insulating block is fixedly arranged on the right end side wall of the cabin of the wind driven generator main body, an elastic telescopic mechanism is fixedly arranged on the right side of the upper end of the insulating block, a U-shaped conducting block is fixedly arranged at the upper end of the elastic telescopic mechanism, two conducting shafts are rotatably arranged between the inner walls of the U-shaped conducting blocks through bearings, conducting wheels are fixedly arranged on the shaft walls of the conducting shafts, and a sliding mechanism is electrically connected with the grounding wire through the sliding mechanism. The utility model can improve the lightning protection stability of the wind driven generator.

Description

Stably-protected lightning-proof grounding device of wind driven generator

Technical Field

The utility model relates to the technical field of generator sets, in particular to a lightning protection grounding device of a stably-protected wind driven generator.

Background

The wind driven generator is a power device capable of converting wind energy into mechanical energy, the mechanical energy drives a rotor to rotate and finally outputs alternating current, and the lightning protection grounding device of the wind driven generator mainly considers two aspects in general: the lightning protection of the engine room is realized by mainly arranging lightning receivers at two sides of a blade tip, connecting the lightning receivers with a conduction system, guiding lightning current to the blade in a controlled manner, and entering the ground through a hub and a tower.

The lightning-proof grounding device of the existing wind driven generator is always kept in a moving state due to the fact that the lightning receiver at the blade is not stable enough in connection mode at the hub, once the situation of poor contact occurs, the lightning-proof grounding device of the existing wind driven generator is easy to lose stable protection of the generator, and therefore lightning is caused to damage the wind driven generator through the blade.

Disclosure of Invention

The utility model aims to solve the problem that the lightning grounding device of the wind driven generator is easy to lose stable protection to the generator once the poor contact condition occurs due to the fact that the connection mode of the hub of the existing lightning grounding device of the wind driven generator is not stable enough in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a lightning protection grounding device of a stably protected wind driven generator comprises a wind driven generator main body, a rotating rod, fan blades, a cabin lightning rod and a grounding wire, and is characterized in that,

a conductive pipe is fixedly arranged on the rod wall of the rotary rod, blade lightning rods are fixedly arranged at the blade tips of a plurality of blades, the blade lightning rods are electrically connected with the conductive pipe through L-shaped conductive wires,

an insulating block is fixedly arranged on the side wall of the right end of the cabin of the wind driven generator main body, an elastic telescopic mechanism is fixedly arranged on the right side of the upper end of the insulating block, a U-shaped conductive block is fixedly arranged at the upper end of the elastic telescopic mechanism,

two conductive rotating shafts are rotatably arranged between the inner walls of the U-shaped conductive blocks through bearings, conductive wheels are fixedly arranged on the shaft walls of the conductive rotating shafts, the two conductive wheels are in contact with the conductive pipe,

the left end of the U-shaped conductive block is electrically connected with a sliding mechanism, and the sliding mechanism is electrically connected with a grounding wire through a grounding wire.

Preferably, the sliding mechanism comprises a conductive block and a T-shaped conductive sliding block, the conductive block is fixedly arranged on the left side of the upper end of the insulating block, the left end of the conductive block is fixedly connected with the grounding wire, a T-shaped sliding groove is formed in the side wall of the right end of the conductive block, the T-shaped conductive sliding block is arranged in the T-shaped sliding groove in a sliding mode, and the right end of the T-shaped conductive sliding block is fixedly connected with the side wall of the U-shaped conductive block.

Preferably, the sliding mechanism comprises a conductive sleeve and a conductive rod, the lower end of the conductive rod is fixedly arranged on the left side of the upper end of the insulating block, the right end of the electric wire is fixedly connected with the left end rod wall of the conductive rod, the right end of the conductive sleeve is fixedly connected with the U-shaped conductive block, and the conductive rod is sleeved with the conductive sleeve and is in sliding connection with the inner wall of the conductive sleeve.

Preferably, the elastic telescopic mechanism comprises a fixed cylinder, a spring and a telescopic rod, wherein the fixed cylinder is fixedly arranged at the upper end of the right side of the insulating block, the lower end of the spring is fixedly connected with the inner wall of the bottom end of the fixed cylinder, the telescopic rod is fixedly arranged at the upper end of the spring, the telescopic rod is slidably connected with the inner wall of the fixed cylinder, and the upper end of the telescopic rod extends out of the fixed cylinder and is fixedly connected with the lower end of the U-shaped conductive block.

Preferably, two limiting blocks are fixedly arranged at the lower end of the telescopic rod wall, strip-shaped grooves are formed in the inner walls of the two sides of the fixed cylinder, and the other ends of the limiting blocks extend to the inside of the strip-shaped grooves and are in sliding connection with the inner walls of the strip-shaped grooves.

Preferably, a first insulating layer is fixedly arranged between the conductive tube and the rotating rod.

Preferably, the L-shaped conductive wire penetrates through the fan blade and a second insulating layer is fixedly arranged between the L-shaped conductive wire and the fan blade.

Preferably, the outer wall of the conductive tube is provided with an annular limiting groove, and the upper ends of the two conductive wheels extend to the inside of the annular limiting groove and are in contact with the inner wall of the annular limiting groove.

Compared with the prior art, the utility model provides a stably-protected lightning-protection grounding device of a wind driven generator, which has the following beneficial effects:

1. this stable protection's aerogenerator lightning grounding device carries out stable lightning protection through cabin lightning rod and earth connection to aerogenerator's cabin, carries out lightning protection through the flabellum to aerogenerator's flabellum through the flabellum lightning-arrest, and dual lightning protection has promoted this lightning protection grounding device lightning protection's effect.

2. This lightning protection earthing device of aerogenerator of stable protection, when the flabellum rotates, the conducting tube rotates along with bull stick and flabellum, upwards promote the inner wall contact setting of annular spacing groove on the conducting tube through the spring and make two conducting wheels all the time with the conducting tube, guaranteed the stability of conducting tube and U-shaped conducting block electric connection, make the U-shaped conducting block keep stable electric connection with the electric wire through slide mechanism, thereby make the flabellum lightning rod of flabellum apex department keep electric connection with the earth connection, promoted this lightning protection earthing device to the stability of aerogenerator lightning protection.

3. This stably protected wind-driven generator lightning grounding device through first insulating layer, second insulating layer, insulating piece and a plurality of setting at the outside earth connection of wind-driven generator, makes this lightning grounding device introduce the thunder and lightning underground from wind-driven generator's outside, has further promoted this lightning grounding device to wind-driven generator lightning protection's stability.

The device has the advantages that the non-related parts are the same as or can be realized by adopting the prior art, and the lightning protection stability of the wind driven generator can be improved.

Drawings

FIG. 1 is a schematic structural diagram of a lightning protection grounding device for a stably protected wind turbine according to the present utility model;

FIG. 2 is an enlarged view of the portion A of FIG. 1;

FIG. 3 is a schematic side view of the U-shaped conductive block of FIG. 1;

FIG. 4 is a schematic structural diagram of another embodiment of a lightning protection grounding device for a stably protected wind turbine according to the present utility model;

fig. 5 is an enlarged view of the structure of the part B in fig. 4.

In the figure: the wind driven generator comprises a wind driven generator main body 1, a rotating rod 2, fan blades 3, a cabin lightning rod 4, a ground wire 5, a conductive pipe 6, a first insulating layer 7, a fan blade lightning rod 8, a L-shaped conductive wire 9, a second insulating layer 10, an insulating block 11, a fixed cylinder 12, a spring 13, a telescopic rod 14, a limiting block 15, a U-shaped conductive block 16, a conductive rotating shaft 17, a conductive wheel 18, a conductive block 19, a conductive sliding block 20T-shaped, a wire 21, a conductive sleeve 22 and a conductive rod 23.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Example 1

Referring to fig. 1-3, a lightning protection grounding device of a stably protected wind driven generator comprises a wind driven generator main body 1, a rotating rod 2, fan blades 3, a cabin lightning rod 4 and a grounding wire 5, wherein a conducting tube 6 is fixedly arranged on the rod wall of the rotating rod 2, and a first insulating layer 7 is fixedly arranged between the conducting tube 6 and the rotating rod 2. Blade lightning rods 8 are fixedly arranged at the blade tips of the blades 3, the blade lightning rods 8 and the conducting tubes 6 are electrically connected through L-shaped conducting wires 9, and the L-shaped conducting wires 9 penetrate through the blades 3 and are fixedly provided with a second insulating layer 10 between the blades 3. The right-hand member lateral wall in wind-driven generator main part 1 cabin is fixed and is equipped with insulating piece 11, and the right side of insulating piece 11 upper end is fixed and is equipped with elastic telescopic machanism, and elastic telescopic machanism's upper end is fixed and is equipped with U-shaped conducting block 16, rotates through the bearing between the inner wall of U-shaped conducting block 16 and is equipped with two electrically conductive pivots 17, and the epaxial fixed conductive wheel 18 that is equipped with of axle wall of electrically conductive pivot 17 has seted up annular spacing groove on the outer wall of electrically conductive pipe 6, and the upper end of two electrically conductive wheels 18 extends to the inside of annular spacing groove and contacts the setting with its inner wall. The left end of the U-shaped conductive block 16 is electrically connected with a sliding mechanism, and the sliding mechanism is electrically connected with the grounding wire 5 through a grounding wire 21.

The sliding mechanism comprises a conductive block 19 and a T-shaped conductive sliding block 20, wherein the conductive block 19 is fixedly arranged on the left side of the upper end of the insulating block 11, the left end of the conductive block 19 is fixedly connected with a grounding wire 21, a T-shaped sliding groove is formed in the side wall of the right end of the conductive block 19, the T-shaped conductive sliding block 20 is arranged in the T-shaped sliding groove in a sliding mode, and the right end of the T-shaped conductive sliding block 20 is fixedly connected with the side wall of the U-shaped conductive block 16.

The elastic telescopic mechanism comprises a fixed cylinder 12, a spring 13 and a telescopic rod 14, wherein the fixed cylinder 12 is fixedly arranged at the upper end of the right side of the insulating block 11, the lower end of the spring 13 is fixedly connected with the inner wall of the bottom end of the fixed cylinder 12, the telescopic rod 14 is fixedly arranged at the upper end of the spring 13, the telescopic rod 14 is slidably connected with the inner wall of the fixed cylinder 12, and the upper end of the telescopic rod 14 extends out of the fixed cylinder 12 and is fixedly connected with the lower end of the U-shaped conductive block 16. Two limiting blocks 15 are fixedly arranged at the lower end of the rod wall of the telescopic rod 14, strip-shaped grooves are formed in the inner walls of the two sides of the fixed cylinder 12, and the other ends of the limiting blocks 15 extend into the strip-shaped grooves and are in sliding connection with the inner walls of the strip-shaped grooves.

In the utility model, when in actual use, the cabin of the wind driven generator is stably protected from lightning by the cabin lightning rod 4 and the grounding wire 5, the fan blade 3 of the wind driven generator is protected from lightning by the fan blade lightning rod 8, and the dual lightning protection improves the lightning protection effect of the lightning protection grounding device; when the fan blade 3 rotates, the conductive tube 6 rotates along with the rotating rod 2 and the fan blade 3, the U-shaped conductive block 16 is pushed upwards by the spring 13 to enable the two conductive wheels 18 to be always in contact with the inner wall of the annular limiting groove on the conductive tube 6, so that the stability of the electrical connection between the conductive tube 6 and the U-shaped conductive block 16 is ensured, and the U-shaped conductive block 16 can be stably and electrically connected with the grounding wire 21 through the cooperation of the T-shaped conductive sliding block 20 and the T-shaped sliding groove on the conductive block 19, so that the fan blade lightning rod 8 at the tip of the fan blade 3 can be stably and electrically connected with the grounding wire 5, and the stability of the lightning protection grounding device for the wind driven generator is improved; through first insulating layer 7, second insulating layer 10, insulating block 11 and a plurality of setting up at the outside earth connection 5 of aerogenerator, make this lightning protection earthing device introduce the thunder and lightning underground from aerogenerator's outside, further promoted this lightning protection earthing device to aerogenerator lightning protection's stability.

Example 2

Referring to fig. 4-5, a lightning protection grounding device of a stably protected wind driven generator comprises a wind driven generator main body 1, a rotating rod 2, fan blades 3, a cabin lightning rod 4 and a grounding wire 5, wherein a conducting tube 6 is fixedly arranged on the rod wall of the rotating rod 2, and a first insulating layer 7 is fixedly arranged between the conducting tube 6 and the rotating rod 2. Blade lightning rods 8 are fixedly arranged at the blade tips of the blades 3, the blade lightning rods 8 and the conducting tubes 6 are electrically connected through L-shaped conducting wires 9, and the L-shaped conducting wires 9 penetrate through the blades 3 and are fixedly provided with a second insulating layer 10 between the blades 3. The right-hand member lateral wall in wind-driven generator main part 1 cabin is fixed and is equipped with insulating piece 11, and the right side of insulating piece 11 upper end is fixed and is equipped with elastic telescopic machanism, and elastic telescopic machanism's upper end is fixed and is equipped with U-shaped conducting block 16, rotates through the bearing between the inner wall of U-shaped conducting block 16 and is equipped with two electrically conductive pivots 17, and the epaxial fixed conductive wheel 18 that is equipped with of axle wall of electrically conductive pivot 17 has seted up annular spacing groove on the outer wall of electrically conductive pipe 6, and the upper end of two electrically conductive wheels 18 extends to the inside of annular spacing groove and contacts the setting with its inner wall. The left end of the U-shaped conductive block 16 is electrically connected with a sliding mechanism, and the sliding mechanism is electrically connected with the grounding wire 5 through a grounding wire 21.

The sliding mechanism comprises a conductive sleeve 22 and a conductive rod 23, the lower end of the conductive rod 23 is fixedly arranged on the left side of the upper end of the insulating block 11, the right end of the grounding wire 21 is fixedly connected with the left end rod wall of the conductive rod 23, the right end of the conductive sleeve 22 is fixedly connected with the U-shaped conductive block 16, and the conductive rod 23 is sleeved with the conductive sleeve 22 and is in sliding connection with the inner wall of the conductive sleeve.

The elastic telescopic mechanism comprises a fixed cylinder 12, a spring 13 and a telescopic rod 14, wherein the fixed cylinder 12 is fixedly arranged at the upper end of the right side of the insulating block 11, the lower end of the spring 13 is fixedly connected with the inner wall of the bottom end of the fixed cylinder 12, the telescopic rod 14 is fixedly arranged at the upper end of the spring 13, the telescopic rod 14 is slidably connected with the inner wall of the fixed cylinder 12, and the upper end of the telescopic rod 14 extends out of the fixed cylinder 12 and is fixedly connected with the lower end of the U-shaped conductive block 16. Two limiting blocks 15 are fixedly arranged at the lower end of the rod wall of the telescopic rod 14, strip-shaped grooves are formed in the inner walls of the two sides of the fixed cylinder 12, and the other ends of the limiting blocks 15 extend into the limiting grooves and are in sliding connection with the inner walls of the limiting grooves.

In the utility model, when in actual use, the cabin of the wind driven generator is stably protected from lightning by the cabin lightning rod 4 and the grounding wire 5, the fan blade 3 of the wind driven generator is protected from lightning by the fan blade lightning rod 8, and the dual lightning protection improves the lightning protection effect of the lightning protection grounding device; when the fan blade 3 rotates, the conductive tube 6 rotates along with the rotating rod 2 and the fan blade 3, the U-shaped conductive block 16 is pushed upwards by the spring 13 to enable the two conductive wheels 18 to be always in contact with the inner wall of the annular limiting groove on the conductive tube 6, so that the stability of the electrical connection between the conductive tube 6 and the U-shaped conductive block 16 is ensured, the U-shaped conductive block 16 can be stably and electrically connected with the grounding wire 21 through the cooperation of the conductive sleeve 22 and the conductive rod 23, and therefore the fan blade lightning rod 8 at the tip of the fan blade 3 can be stably and electrically connected with the grounding wire 5, and the lightning protection stability of the lightning protection grounding device to the wind driven generator is improved; through first insulating layer 7, second insulating layer 10, insulating block 11 and a plurality of setting up at the outside earth connection 5 of aerogenerator, make this lightning protection earthing device introduce the thunder and lightning underground from the outside of aerogenerator, further promoted this lightning protection earthing device to aerogenerator lightning protection's stability.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

1. The lightning protection grounding device of the wind driven generator with stable protection comprises a wind driven generator main body (1), a rotating rod (2), fan blades (3), a cabin lightning rod (4) and a grounding wire (5), and is characterized in that,

a conductive tube (6) is fixedly arranged on the rod wall of the rotary rod (2), blade lightning rods (8) are fixedly arranged at the blade tips of a plurality of blades (3), the blade lightning rods (8) are electrically connected with the conductive tube (6) through L-shaped conductive wires (9),

an insulating block (11) is fixedly arranged on the side wall of the right end of the engine room of the wind driven generator main body (1), an elastic telescopic mechanism is fixedly arranged on the right side of the upper end of the insulating block (11), a U-shaped conductive block (16) is fixedly arranged at the upper end of the elastic telescopic mechanism,

two conductive rotating shafts (17) are rotatably arranged between the inner walls of the U-shaped conductive blocks (16) through bearings, conductive wheels (18) are fixedly arranged on the shaft walls of the conductive rotating shafts (17), the two conductive wheels (18) are in contact with the conductive pipe (6),

the left end of the U-shaped conductive block (16) is electrically connected with a sliding mechanism, and the sliding mechanism is electrically connected with the grounding wire (5) through a grounding wire (21).

2. The lightning protection grounding device of a stably protected wind driven generator according to claim 1, wherein the sliding mechanism comprises a conductive block (19) and a T-shaped conductive sliding block (20), the conductive block (19) is fixedly arranged on the left side of the upper end of the insulating block (11), the left end of the conductive block (19) is fixedly connected with the grounding wire (21), a T-shaped sliding groove is formed in the side wall of the right end of the conductive block (19), the T-shaped conductive sliding block (20) is slidably arranged in the T-shaped sliding groove, and the right end of the T-shaped conductive sliding block (20) is fixedly connected with the side wall of the U-shaped conductive block (16).

3. The lightning protection grounding device of a stably protected wind driven generator according to claim 1, wherein the sliding mechanism comprises a conductive sleeve (22) and a conductive rod (23), the lower end of the conductive rod (23) is fixedly arranged on the left side of the upper end of the insulating block (11), the right end of the grounding wire (21) is fixedly connected with the left end rod wall of the conductive rod (23), the right end of the conductive sleeve (22) is fixedly connected with the U-shaped conductive block (16), and the conductive rod (23) is sleeved with the conductive sleeve (22) and is in sliding connection with the inner wall of the conductive sleeve.

4. The lightning protection grounding device of a stably protected wind driven generator according to claim 1, wherein the elastic telescopic mechanism comprises a fixed cylinder (12), a spring (13) and a telescopic rod (14), the fixed cylinder (12) is fixedly arranged at the upper right side end of the insulating block (11), the lower end of the spring (13) is fixedly connected with the inner wall of the bottom end of the fixed cylinder (12), the telescopic rod (14) is fixedly arranged at the upper end of the spring (13), the telescopic rod (14) is in sliding connection with the inner wall of the fixed cylinder (12), and the upper end of the telescopic rod (14) extends out of the fixed cylinder (12) and is fixedly connected with the lower end of the U-shaped conductive block (16).

5. The lightning protection grounding device for the stably protected wind driven generator according to claim 4, wherein two limiting blocks (15) are fixedly arranged at the lower end of the rod wall of the telescopic rod (14), strip-shaped grooves are formed in the inner walls of the two sides of the fixed cylinder (12), and the other ends of the limiting blocks (15) extend into the strip-shaped grooves and are in sliding connection with the inner walls of the strip-shaped grooves.

6. The lightning protection grounding device of the stably protected wind driven generator according to claim 1, wherein a first insulating layer (7) is fixedly arranged between the conductive pipe (6) and the rotating rod (2).

7. The lightning protection grounding device of a stably protected wind driven generator according to claim 1, wherein the L-shaped conducting wire (9) penetrates through the fan blade (3) and a second insulating layer (10) is fixedly arranged between the L-shaped conducting wire and the fan blade (3).

8. The lightning protection grounding device for the stably protected wind driven generator according to claim 1, wherein an annular limiting groove is formed in the outer wall of the conducting tube (6), and the upper ends of the two conducting wheels (18) extend into the annular limiting groove and are in contact with the inner wall of the annular limiting groove.

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