CN216554221U

CN216554221U - Lightning protection device of wind driven generator

Info

Publication number: CN216554221U
Application number: CN202122724366.1U
Authority: CN
Inventors: 邵振州; 郭辰; 张立英; 张国; 张庆; 李家川; 高建辉; 李芊; 程瑜
Original assignee: Huaneng Clean Energy Research Institute
Current assignee: Huaneng Clean Energy Research Institute
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-05-17
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses a lightning protection device of a wind driven generator, which comprises: a box body; the heat dissipation mechanism is arranged on the side surface inside the box body; the damping mechanism of setting in the box top, damping mechanism includes the mounting groove, the inside fixed plate that sets up of mounting groove, the fixed plate top sets up first spacing groove and second spacing groove, first spacing groove is two at least, first spacing groove and second spacing groove are used for setting up first shock attenuation component and second shock attenuation component respectively, the movable rod is connected on first shock attenuation component upper portion, the supporting shoe is connected on second shock attenuation component upper portion, movable rod and supporting shoe fixed connection, the supporting shoe top sets up the lightning rod. The lightning protection device is provided with the damping mechanism to buffer the force applied to the lightning rod in the lightning stroke process so as to disperse the force of the lightning stroke, and the service life of the lightning rod is prolonged; the heat dissipation mechanism is arranged to dissipate heat of the engine room, so that the service life of the engine room is prolonged.

Description

Lightning protection device of wind driven generator

Technical Field

The utility model belongs to the technical field of wind power generation, and particularly relates to a lightning protection device of a wind driven generator.

Background

The wind driven generator is an electric power device which converts wind energy into mechanical energy, drives a rotor to rotate and finally outputs alternating current. The wind driven generator is built in comparatively spacious areas such as land, sea and the like, the height of the wind driven generator is often more than 100 meters, lightning is easy to be induced in thunderstorm weather, and a lightning protection device is required to be installed on the wind driven generator in order to prevent internal devices of the wind driven generator from being damaged by lightning.

The lightning protection device of the existing wind driven generator is difficult to have a buffering and damping function, and when the lightning stroke strength is too large, the lightning rod is easy to damage, so that the device in the engine room is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lightning protection device of a wind driven generator, aiming at the technical problems that the lightning protection device of the wind driven generator in the related art is difficult to have a buffering and damping function, and when the lightning stroke force is too large, a lightning rod is easy to damage, and further a device in a cabin is damaged.

In order to achieve the above object, the present invention provides a lightning protection device for a wind power generator, comprising: a box body; the heat dissipation mechanism is arranged on the side surface inside the box body; the shock absorption mechanism is arranged above the box body and comprises a mounting groove, a fixing plate is arranged in the mounting groove, a first limiting groove and a second limiting groove are arranged above the fixing plate, the number of the first limiting grooves is at least two, the first limiting groove and the second limiting groove are respectively used for arranging a first shock absorption element and a second shock absorption element, the upper portion of the first shock absorption element is connected with a movable rod, the upper portion of the second shock absorption element is connected with a supporting block, the movable rod is fixedly connected with the supporting block, and a lightning rod is arranged above the supporting block.

Wherein the first and second dampening members include, but are not limited to, springs.

The damping mechanism enables the lightning rod to be buffered in the lightning stroke process, reduces the damage of the lightning rod, and reduces the damage of devices in the box body by dispersing the lightning stroke force to a certain extent through the arrangement of the movable rod.

Further, the first damping element is arranged symmetrically with respect to the second damping element.

Furthermore, the limiting groove is a space formed by limiting plates fixedly arranged on the fixing plate.

Further, the fixed plate is fixedly connected to the top of the box body.

Further, the top of mounting groove sets up the mounting hole, the mounting hole is used for installing anemoscope.

Further, heat dissipation mechanism includes the motor groove, motor inslot portion sets up the motor, the motor top sets up the fan, the fan is kept away from the one end on motor top is exposed motor inslot portion, the one end in motor groove is in with the setting the dust screen of box inner wall is connected, the dust screen is kept away from one side in motor groove sets up the air outlet.

The heat dissipation mechanism of the utility model drives the fan to rotate through the motor to dissipate heat of the device in the engine room; the arrangement of the dustproof net can filter sundries in the air, and damage caused by the sundries entering the cabin is effectively avoided; the dust screen sets up in the inside of box so that maintain the clearance to it.

Furthermore, a blocking piece is arranged at the air outlet and is obliquely and downwards arranged.

The blocking piece at the air outlet is inclined at a certain angle and is arranged downwards, so that rainwater can be prevented from entering the cabin from the air outlet, and the service life of the device in the box body is prolonged.

Further, the control module is electrically connected to the motor.

Further, the box body is arranged above the wind power generator tower, and a cabin is arranged inside the box body.

Compared with the prior art, the utility model has the technical effects that: the lightning protection device of the wind driven generator provided by the utility model buffers the force applied to the lightning rod in the lightning stroke process by arranging the damping mechanism so as to disperse the force of the lightning stroke and prolong the service life of the lightning rod; the heat dissipation mechanism is arranged to dissipate heat of the engine room, so that the service life of the engine room is prolonged; debris and rainwater are prevented from entering the engine room through the baffle piece arranged at the dust screen and the air outlet, and damage caused by the fact that the debris or the rainwater enter the engine room is avoided.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic perspective view of a lightning protection device according to the present invention;

FIG. 2 is a schematic structural diagram of a heat dissipation mechanism according to the present invention;

FIG. 3 is a cross-sectional view of a lightning protection device of the utility model;

FIG. 4 is a top view of the supporting block and movable rod connecting structure of the present invention.

Description of reference numerals:

the wind power generation device comprises a box body 1, a damping mechanism 2, a mounting groove 201, a fixing plate 202, a screw 203, a first limit groove 204, a first damping element 205, a support block 206, a movable rod 207, a second limit groove 208, a second damping element 209, a lightning rod 210, a wind meter 211, a limit plate 212, a heat dissipation mechanism 3, a motor groove 301, a motor 302, a fan 303, a dust screen 304, an air outlet 305, a cabin 4, a control module 5 and a wind power generator tower 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

The lightning protection device for the wind power generator according to the embodiment of the utility model is described below with reference to the accompanying drawings.

As shown in fig. 1 to 4, the lightning protection device for a wind turbine includes: a box body 1; the heat dissipation mechanism 3 is arranged on the inner side surface of the box body 1; the damping mechanism 2 is arranged above the box body 1, the damping mechanism 2 comprises a mounting groove 201, a fixing plate 202 is arranged in the mounting groove 201, a first limiting groove 204 and a second limiting groove 208 are arranged above the fixing plate 202, the number of the first limiting grooves 204 is at least two, the first limiting grooves 204 and the second limiting grooves 208 are respectively used for arranging a first damping element 205 and a second damping element 209, the upper portion of the first damping element 205 is connected with a movable rod 207, the upper portion of the second damping element 209 is connected with a supporting block 206, the movable rod 207 is fixedly connected with the supporting block 206, and a lightning rod 210 is arranged above the supporting block 206.

The box body 1 is arranged above a wind power generator tower 6, a cabin 4 is arranged in the box body close to the middle, and a power generation device is arranged in the cabin 4. The damper mechanism 2 is provided on the upper portion of the case 1, and the heat radiation mechanisms 3 are provided on both left and right side surfaces of the case 1, the heat radiation mechanisms 3 being used for radiating heat from the power generation device in the nacelle 4.

Damper 2 includes mounting groove 201, and mounting groove 201 is inside to set up fixed plate 202, and fixed plate 202 fixed connection is at the 1 top of box, specifically, and screw 203 fixed connection is passed through at fixed plate 202 and the 1 top of box. A first limit groove 204 and a second limit groove 208 are arranged above the fixing plate 202, the limit grooves are spaces formed by limit plates 212 fixedly arranged on the fixing plate 202, specifically, the fixing plate 202 is provided with the limit plates 212, the space between the two limit plates 212 is the limit grooves, and the limit grooves respectively limit the first damping element 205 and the second damping element 209.

The number of the first limiting grooves 204 is at least two, in this embodiment, for example, 4 first limiting grooves 204 are provided, and the first limiting grooves 204 and the second limiting grooves 208 are respectively used for providing the first damping elements 205 and the second damping elements 209, that is, the first damping elements 205 and the second damping elements 209 are respectively installed in the first limiting grooves 204 and the second limiting grooves 208. The first shock absorbing elements 205 are symmetrically arranged about the second shock absorbing elements 209, both the first shock absorbing elements 205 and the second shock absorbing elements 209 of the present embodiment are shock absorbing springs, the upper portion of the first shock absorbing elements 205 is connected with the movable rod 207, that is, one end of the first shock absorbing elements 205 is fixedly arranged in the first limiting grooves 204 on the fixing plate 202, the other end is connected with the

movable rod

207, 4 first limiting grooves 204 correspond to 4 first

shock absorbing elements

205, and 4 first shock absorbing elements 205 are correspondingly connected with 4 movable rods 207. The upper portion of the second damping element 209 is connected to the supporting block 206, that is, one end of the second damping element 209 is fixedly disposed in the second limiting groove 208 of the fixing plate 202, and the other end is connected to the supporting block 206. The movable rods 207 are fixedly connected to the supporting blocks 206, in this embodiment, specifically, the supporting blocks 206 are fixedly connected to the middle positions of 4 movable rods 207, the lightning rod 210 is connected to the upper portion of the supporting blocks 206, the second damping element 209 is connected to the lower portion of the supporting blocks 206, and the lightning rod 210 is disposed above the supporting blocks 206.

In addition, a mounting hole is formed in the top of the mounting groove 201, the mounting hole is used for mounting the wind meter 211, and the wind meter 211 is located on one side of the lightning rod 210.

In this embodiment, the heat dissipation mechanisms 3 are provided on both the left and right sides of the case 1. The heat dissipation mechanism 3 includes a motor slot 301, a motor 302 disposed inside the motor slot 301, and a fan 303 disposed on a top end of the motor 302, it being understood that an end of the fan 303 away from the top end of the motor 302 is exposed outside the motor slot 301, and the fan 303 is disposed toward the nacelle 4. Set up control module 5 at box 1 top inboard, control module 5 is connected with motor 302 electricity, and it can be understood that control module 5 control motor 302 operates, and then drives fan 303 and rotate to lower the temperature to cabin 4.

One end of the motor groove 301 is connected with a dust screen 304 arranged on the inner wall of the box body 1, and an air outlet 305 is arranged on one side of the dust screen 304 far away from the motor groove 301. Specifically, the dust screen 304 is disposed on the inner wall of the box 1, one end of the dust screen 304 is connected to the motor slot 301, and the other end of the dust screen 304 is provided with the air outlet 305, that is, the dust screen 304 and the air outlet 305 are disposed correspondingly. Set up the separation blade in air outlet 305 department, specifically be, the separation blade is certain angle slope with box 1 lateral wall and sets up downwards to avoid the rainwater to get into cabin 4 from air outlet 305, thereby damage equipment.

When the lightning protection device is struck by lightning, the lightning rod 210 moves to drive the supporting block 206 to move, and the movement of the supporting block 206 compresses the second shock absorption element 209 in the second limiting groove 208 and simultaneously drives the movable rod 207 to move, so that the movement of the movable rod 207 compresses the first shock absorption element 205 in the first limiting groove 204, and the lightning strike on the lightning rod 210 is dispersed, and a good shock absorption effect and a good lightning protection effect are achieved. In addition, the left side and the right side of the box body 1 are provided with the heat dissipation mechanisms 3, the heat dissipation mechanisms 3 can also be arranged on two sides of the cabin 4, the control module 5 controls the motor 302 to operate, so as to drive the fan 303 to rotate, so as to cool the device in the cabin 4, and meanwhile, the air outlet 305 is provided with the dust screen 304 to filter impurities in the air, so as to prevent the impurities from damaging the cabin 4.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A lightning protection device for a wind driven generator is characterized by comprising:

a box body;

the heat dissipation mechanism is arranged on the side surface inside the box body;

the shock absorption mechanism is arranged above the box body and comprises a mounting groove, a fixing plate is arranged in the mounting groove, a first limiting groove and a second limiting groove are arranged above the fixing plate, the number of the first limiting grooves is at least two, the first limiting groove and the second limiting groove are respectively used for arranging a first shock absorption element and a second shock absorption element, the upper portion of the first shock absorption element is connected with a movable rod, the upper portion of the second shock absorption element is connected with a supporting block, the movable rod is fixedly connected with the supporting block, and a lightning rod is arranged above the supporting block.

2. The device of claim 1, wherein the first dampening member is symmetrically disposed about the second dampening member.

3. The apparatus of claim 1, wherein the stopper groove is a space formed by a stopper plate fixedly provided on the fixing plate.

4. The apparatus of claim 1, wherein the fixed plate is fixedly attached to the top of the housing.

5. The device of claim 1, wherein the top of the mounting groove is provided with a mounting hole, and the mounting hole is used for mounting a wind meter.

6. The device as claimed in any one of claims 1 to 5, wherein the heat dissipation mechanism comprises a motor groove, a motor is arranged in the motor groove, a fan is arranged at the top end of the motor, one end of the fan, which is far away from the top end of the motor, is exposed outside the motor groove, one end of the motor groove is connected with a dust screen arranged on the inner wall of the box body, and an air outlet is arranged at one side of the dust screen, which is far away from the motor groove.

7. The device as claimed in claim 6, wherein a baffle is arranged at the air outlet, and the baffle is arranged obliquely downwards.

8. The apparatus of claim 6, wherein a control module is disposed inside the top of the housing, the control module being electrically connected to the motor.

9. The apparatus of claim 1, wherein the housing is disposed above a wind turbine tower, the housing having a nacelle disposed therein.