Lightning protection device convenient to install

Abstract

The utility model relates to the technical field of fan lightning protection, and discloses a lightning protection device convenient to install, which comprises a fan support, fan blades are arranged on the right side of the fan support, a lightning protection device is arranged above the fan support, and the lightning protection device comprises a blade lightning protection part. According to the lightning protection device convenient to install, by arranging a tip lightning rod, an insulating block, a first drainage wire, a diversion rod, a metal circular ring, a fixing ring, an insulating sliding rail and a limiting sliding block, lightning protection is conducted on the tip of a fan blade through the tip lightning rod, and current is guided to the bottom face from the first drainage wire, the diversion rod and a grounding wire; the flow guide rod drives the metal circular ring to rotate, when fan blades deform, the flow guide rod moves left and right relative to the metal circular ring, but still can guide current, meanwhile, when the metal circular ring drives the limiting sliding block to rotate, the limiting sliding block enables air in the insulating sliding rail to circularly flow with the outside, and heat dissipation of the inner wall of the metal circular ring is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection for wind turbines, in particular to a lightning protection device which is easy to install. Background Art

[0002] Wind turbines are usually installed in open fields and are often struck by lightning on rainy days. Since the blades of wind turbines are at a high position during rotation, lightning protection devices need to be installed on the blades of wind turbines.

[0003] A Chinese patent discloses a lightning protection device for a wind turbine generator, with the publication number CN216278297U, comprising a lightning rod, the bottom end of which is fixedly connected to the upper surface of a column, the outer surface of which is fixedly connected to the left side of a reflector, the lower surface of which is fixedly connected to the upper surface of a driving plate, the lower surface of which is drivingly connected to the top of a rotating rod, and the inner wall of which is provided with a plurality of grooves. The lightning protection device for a wind turbine generator, by providing a reflector, when the operator installs the lightning rod above the column, by providing a reflector around the column, birds are prevented from building nests on the top of the generator, at night, the driving plate can also drive away birds when it is rotating, and the use of the lightning protection device can also effectively realize the conduction transition of lightning current, and the device structure is extremely convenient to maintain and replace, and is very suitable for lightning protection devices for outdoor wind turbine generators.

[0004] However, there are still some disadvantages: the top of the wind turbine blade is sharp and the height is high during rotation, which makes it more likely to be struck by lightning. However, the device can only be installed on the generator column to install a lightning rod for lightning protection, and the lightning protection range is small. Therefore, we propose a lightning protection device that is easy to install to solve this problem. Utility Model Content

[0005] The purpose of the utility model is to provide a lightning protection device that is easy to install, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a lightning protection device that is easy to install, comprising a fan bracket, a fan blade is arranged on the right side of the fan bracket, a lightning protection device is arranged above the fan bracket, and the lightning protection device includes a blade lightning protection part;

[0007] The blade lightning protection part includes a tip lightning rod, a fixing ring, a metal ring, a first drainage line, a guide rod, the outer surface of the tip lightning rod is fixedly connected to the outer surface of the first drainage line, the outer surface of the guide rod is fixedly connected to the outer surface of the first drainage line, the outer surface of the metal ring is provided with a ring groove, and the inner wall of the fixing ring is slidably connected to the inner wall of the ring groove;

[0008] A main engine lightning protection part is arranged above the fan bracket;

[0009] The host lightning protection part includes an insulating base and a host lightning rod, the bottom surface of the host lightning rod is fixedly connected to the top surface of the insulating base, and the bottom surface of the insulating base is fixedly connected to the top surface of the fan bracket.

[0010] A further improvement is that the blade lightning protection part also includes an insulating block, an insulating slide rail and a limit slider. The outer surface of the first drainage line is provided with an insulating rubber. The two insulating blocks are respectively fixedly mounted on the outer surface of the tip lightning rod and the outer surface of the guide rod. The right end face of the insulating block is fixedly connected to the outer surface of the fan blade. The bottom surface of the fixed ring is fixedly connected with a grounding wire. By arranging the insulating block, the first drainage line, the tip lightning rod, the guide rod, the fixed ring and the metal ring, the tip lightning rod is used to guide the current, but lightning strikes the fan blade.

[0011] A further improvement is that a through hole is opened on the right end face of the metal ring, and the outer surface of the left end of the guide rod extends into the through hole and is slidably connected to the inner wall of the adapter hole. By setting the guide rod, when the fan blades are deformed due to rotation, the guide rod can move slightly left and right.

[0012] A further improvement is that the inner wall of the insulating slide rail is fixedly connected to the outer surface of the fan bracket, the outer surface of the limit slider is slidably connected to the inner wall of the insulating slide rail, the outer surface of the limit slider is fixedly connected to the inner wall of the metal ring, and a ventilation hole is provided on the outer surface of the insulating slide rail. By setting the limit slider, the metal ring can rotate along the outer surface of the insulating slide rail, while promoting the flow of wind to dissipate heat inside the metal ring.

[0013] A further improvement is that the main engine lightning protection part also includes a support rod, a silicone sleeve, a rotating block, a glass plate, a pneumatic component and a second drainage line. The outer surface of the support rod is hinged to the outer surface of the main engine lightning rod, the left end face of the second drainage line is fixedly connected to the outer surface of the main engine lightning rod, and the right end face of the second drainage line is fixedly connected to the outer surface of the fixed ring. By arranging a pointed lightning rod and a support rod, it is convenient to carry out lightning protection on the wind turbine bracket.

[0014] A further improvement is that the rotating block is rotatably sleeved on the outer surface of the main lightning rod through a bearing, the outer surface of the pneumatic component is fixedly connected to the outer surface of the rotating block, and the inner wall of the pneumatic component is fixedly connected to the outer surface of the glass plate. By arranging the rotating block, the pneumatic component and the glass plate, when the wind drives the pneumatic component and the glass plate to rotate, the fan is used to drive away birds.

[0015] A further improvement is that a storage groove is provided on the outer surface of the rotating block, and the silicone sleeve fixing sleeve is arranged on the outer surface of the support rod. By arranging the silicone sleeve, the support rod can be folded and positioned when the lightning protection part of the main engine is transported.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the lightning protection device, which is easy to install, is provided with a pointed lightning rod, an insulating block, a first guide wire, a guide rod, a metal ring, a fixing ring, an insulating slide rail and a limit slide block, and uses the pointed lightning rod to protect the tip of the fan blade from lightning, and guides the current from the first guide wire, the guide rod and the grounding wire to the bottom surface; when the fan blade rotates, the guide rod drives the metal ring to rotate; when the fan blade is deformed, the guide rod moves left and right relative to the metal ring, but can still guide the current; at the same time, the metal ring carries When the dynamic limit slider rotates, the limit slider will cause the wind inside the insulating slide rail to circulate with the outside world, which is convenient for dissipating the heat of the inner wall of the metal ring; by setting an insulating base, a host lightning rod, a support rod and a second drainage line, the host lightning rod and the support rod are used to protect the fan bracket from lightning, and the current is introduced into the fixed ring, the metal ring and the grounding wire; by setting a rotating block, a silicone sleeve, a glass plate and a pneumatic component, the wind blows through the pneumatic component, so that the wind body component drives the glass plate to rotate to drive away birds, and the silicone sleeve is used to facilitate the rotating block to extrude and position the outer surface of the support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a sectional view of the three-dimensional structure of the lightning protection part of the blade of the utility model;

[0019] Figure 3 for Figure 2 A magnified view of the structure at center;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the lightning protection part of the main engine of the utility model;

[0021] Figure 5 It is an exploded view of the local structure of the lightning protection part of the blade of the utility model.

[0022] In the figure: 1 fan bracket, 2 lightning protection device, 21 blade lightning protection part, 22 host lightning protection part, 211 tip lightning rod, 212 insulating block, 213 first drainage line, 214 guide rod, 215 metal ring, 216 insulating slide rail, 217 limit slider, 218 fixing ring, 221 insulating base, 222 host lightning rod, 223 support rod, 224 silicone sleeve, 225 rotating block, 226 glass plate, 227 pneumatic component, 228 second drainage line, 3 fan blades, 4 grounding wire. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5 The utility model provides a technical solution: a lightning protection device that is easy to install, including a fan bracket 1, a fan blade 3 is arranged on the right side of the fan bracket 1, a lightning protection device 2 is arranged above the fan bracket 1, and the lightning protection device 2 includes a blade lightning protection part 21;

[0025] The blade lightning protection part 21 includes a tip lightning rod 211, a fixing ring 218, a metal ring 215, a first drainage line 213, a guide rod 214, the outer surface of the tip lightning rod 211 is fixedly connected to the outer surface of the first drainage line 213, the outer surface of the guide rod 214 is fixedly connected to the outer surface of the first drainage line 213, the outer surface of the metal ring 215 is provided with a ring groove, the inner wall of the fixing ring 218 is slidably connected to the inner wall of the ring groove, and the blade lightning protection part 21 also includes an insulating block 212, an insulating slide rail 216 and a limit slider 217;

[0026] The outer surface of the first drainage line 213 is provided with an insulating rubber, and two insulating blocks 212 are respectively fixedly sleeved on the outer surface of the tip lightning rod 211 and the outer surface of the guide rod 214, the right end surface of the insulating block 212 is fixedly connected to the outer surface of the fan blade 3, the bottom surface of the fixing ring 218 is fixedly connected to the grounding wire 4, the right end surface of the metal ring 215 is provided with a through hole, and the outer surface of the left end of the guide rod 214 extends to the inside of the through hole and is slidably connected to the inner wall of the adapter hole;

[0027] The inner wall of the insulating slide rail 216 is fixedly connected to the outer surface of the fan bracket 1, the outer surface of the limit slider 217 is slidably connected to the inner wall of the insulating slide rail 216, the outer surface of the limit slider 217 is fixedly connected to the inner wall of the metal ring 215, and the outer surface of the insulating slide rail 216 is provided with ventilation holes. By setting the tip lightning rod 211, the insulating block 212, the first guide line 213, the guide rod 214, the metal ring 215, the fixing ring 218, the insulating slide rail 216 and the limit slider 217, the tip lightning rod 211 is used to The end is lightning-proofed, and the current is guided from the first guide wire 213, the guide rod 214 and the ground wire 4 to the bottom surface. When the fan blade 3 rotates, the guide rod 214 drives the metal ring 215 to rotate. When the fan blade 3 is deformed, the guide rod 214 is displaced left and right relative to the metal ring 215, but the current can still be guided. At the same time, when the metal ring 215 drives the limit slider 217 to rotate, the limit slider 217 causes the wind inside the insulating slide rail 216 to circulate with the outside world, which is convenient for heat dissipation of the inner wall of the metal ring 214;

[0028] A main engine lightning protection part 22 is arranged above the fan bracket 1;

[0029] The host lightning protection part 22 includes an insulating base 221 and a host lightning rod 222. The bottom surface of the host lightning rod 222 is fixedly connected to the top surface of the insulating base 221. The bottom surface of the insulating base 221 is fixedly connected to the top surface of the fan bracket 1. The host lightning protection part 22 also includes a support rod 223, a silicone sleeve 224, a rotating block 225, a glass plate 226, a pneumatic component 227 and a second drainage line 228. The outer surface of the support rod 223 is hinged to the outer surface of the host lightning rod 222. The right end surface of the second drainage line 228 is fixedly connected to the outer surface of the fixing ring 218. The right end of the second drainage line 228 is fixedly connected to the outer surface of the metal ring 215. By setting the insulating base 221, the host lightning rod 222, the support rod 223 and the second drainage line 228, the fan bracket 1 is lightning-protected by using the host lightning rod 222 and the support rod 223, and the current is introduced into the fixing ring 218, the metal ring 215 and the grounding wire 4;

[0030] The rotating block 225 is rotatably sleeved on the outer surface of the host lightning rod 222 through a bearing, the outer surface of the pneumatic component 227 is fixedly connected to the outer surface of the rotating block 225, and the inner wall of the pneumatic component 227 is fixedly connected to the outer surface of the glass plate 226;

[0031] A storage groove is provided on the outer surface of the rotating block 225, and the silicone sleeve 224 is fixedly sleeved on the outer surface of the support rod 223. By arranging the rotating block 225, the silicone sleeve 224, the glass plate 226 and the pneumatic component 227, the wind body blows through the pneumatic component 227, so that the wind body component 227 drives the glass plate 226 to rotate to drive away birds. The silicone sleeve 224 is used to facilitate the rotating block 225 to squeeze and position the outer surface of the support rod 223.

[0032] When in use, the fan blades 3 rotate, driving the guide rod 214 and the metal ring 215 to rotate, and the current is attracted by the tip lightning rod 211. The current is guided to the ground along the tip lightning rod 211, the first guide wire 213, the guide rod 214, the metal ring 215, the fixing ring 218 and the grounding wire 4. At the same time, part of the current is guided to the ground along the main lightning rod 222, the second guide wire 228, the fixing ring 218 and the grounding wire 4.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightning protection device that is easy to install, comprising a fan bracket (1), Features: A fan blade (3) is arranged on the right side of the fan bracket (1), and a lightning protection device (2) is arranged above the fan bracket (1), wherein the lightning protection device (2) comprises a blade lightning protection portion (21); The blade lightning protection part (21) comprises a tip lightning rod (211), a fixing ring (218), a metal ring (215), a first drainage line (213), and a guide rod (214); the outer surface of the tip lightning rod (211) is fixedly connected to the outer surface of the first drainage line (213); the outer surface of the guide rod (214) is fixedly connected to the outer surface of the first drainage line (213); the outer surface of the metal ring (215) is provided with a ring groove; and the inner wall of the fixing ring (218) is slidably connected to the inner wall of the ring groove; A main engine lightning protection part (22) is arranged above the fan bracket (1); The host lightning protection part (22) comprises an insulating base (221) and a host lightning rod (222), the bottom surface of the host lightning rod (222) is fixedly connected to the top surface of the insulating base (221), and the bottom surface of the insulating base (221) is fixedly connected to the top surface of the fan bracket (1).

2. A lightning protection device that is easy to install according to claim 1, Features: The blade lightning protection part (21) further comprises an insulating block (212), an insulating slide rail (216) and a limit slide block (217); the outer surface of the first guide wire (213) is provided with an insulating rubber; the two insulating blocks (212) are respectively fixedly sleeved on the outer surface of the tip lightning rod (211) and the outer surface of the guide rod (214); the right end surface of the insulating block (212) is fixedly connected to the outer surface of the fan blade (3); and the bottom surface of the fixing ring (218) is fixedly connected to a grounding wire (4).

3. A lightning protection device that is easy to install according to claim 2, Features: A through hole is formed on the right end surface of the metal ring (215), and the outer surface of the left end of the flow guide rod (214) extends into the through hole and is slidably connected to the inner wall of the adapter hole.

4. A lightning protection device that is easy to install according to claim 2, Features: The inner wall of the insulating slide rail (216) is fixedly connected to the outer surface of the fan bracket (1), the outer surface of the limit slider (217) is slidably connected to the inner wall of the insulating slide rail (216), the outer surface of the limit slider (217) is fixedly connected to the inner wall of the metal ring (215), and the outer surface of the insulating slide rail (216) is provided with ventilation holes.

5. A lightning protection device that is easy to install according to claim 1, Features: The host lightning protection part (22) further comprises a support rod (223), a silicone sleeve (224), a rotating block (225), a glass plate (226), a pneumatic assembly (227) and a second drainage line (228); the outer surface of the support rod (223) is hinged to the outer surface of the host lightning rod (222); the left end surface of the second drainage line (228) is fixedly connected to the outer surface of the host lightning rod (222); and the right end surface of the second drainage line (228) is fixedly connected to the outer surface of the fixing ring (218).

6. A lightning protection device that is easy to install according to claim 5, Features: The rotating block (225) is rotatably sleeved on the outer surface of the host lightning rod (222) via a bearing, the outer surface of the pneumatic component (227) is fixedly connected to the outer surface of the rotating block (225), and the inner wall of the pneumatic component (227) is fixedly connected to the outer surface of the glass plate (226).

7. A lightning protection device that is easy to install according to claim 5, Features: The outer surface of the rotating block (225) is provided with a receiving groove, and the silicone sleeve (224) is fixedly sleeved on the outer surface of the support rod (223).

Images