Waterproof structure of vertical axis wind turbine

By using a labyrinthine sealing structure and a waterproof scraper design, the problem of waterproofing for vertical axis wind turbines in complex environments has been solved, achieving higher waterproofing and power generation efficiency while reducing friction and maintenance costs.

CN223744486UActive Publication Date: 2025-12-30NANJING OULU ELECTRIC CORP LTD
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Patent Information

Application Number
CN202520050035.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2025-12-30
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

Vertical axis wind turbines are susceptible to erosion from rain and snow in complex environments, and traditional oil seals are costly and affect power generation efficiency.

Method used

It adopts a labyrinth-style sealing structure, combining ball bearings and a waterproof scraper. The ball bearings ensure smooth rotation, the waterproof scraper removes moisture, and the evaporation component evaporates residual moisture, thus improving the waterproof effect through multiple layers of sealing.

Benefits of technology

It reduces sealing friction, improves the generator's waterproofness and starting efficiency, extends its service life, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof structure of a vertical axis wind driven generator, which belongs to the field of wind driven generators, and comprises a shell, a main shaft is rotatably connected in the shell, a waterproof component is arranged on the outer wall of the main shaft, and the waterproof component comprises a sealing element rotatably connected to the outer wall of the main shaft. Through cooperative use of all the devices, a labyrinth sealing mode can be used for replacing a traditional oil seal, the maintenance cost of the oil seal is reduced, friction of a sealing ring to a motor is reduced, a waterproof scraping strip at the lower bottom end of the top seat is used for continuously scraping the interior of a waterproof ring, and the sealing performance of the motor is improved. Impurities entering the generator are removed through the drainage grooves through rotation, the sealing performance of the generator is guaranteed under the condition that the rotation smoothness is improved, water intercepted in the rectangular strips is evaporated through the evaporation assembly and temperature, and the waterproof effect of the generator is improved through layer-by-layer sealing.
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Description

TECHNICAL FIELD

[0001] The utility model relates to wind driven generator technical field, concretely is a vertical axis wind driven generator waterproof structure. BACKGROUND

[0002] Wind driven generator is the device of wind energy conversion for electric energy, it mainly comprises wind wheel, generator, cabin, tower etc, according to the different rotating shaft can be divided into horizontal axis wind driven generator and vertical axis wind driven generator.Horizontal axis is more common, wind wheel shaft is parallel with wind direction, the wind wheel shaft of vertical axis is perpendicular to ground, the advantage of this generator is that it can accept wind from any direction.

[0003] Wind driven generator as the main part of wind power generation, can convert the mechanical energy produced after wind wheel captures wind energy into electric energy, through the rotation of rotor in generator, utilize electromagnetic induction principle, thereby generate electric current, therefore the integrity of wind driven generator is important, and the vertical axis wind driven generator is often used in wind power generation, because its special structure, can accept wind from any direction, so the efficiency is improved.

[0004] But in the working process of the current vertical axis wind turbine, because the environment is more complex, is more susceptible to rain and snow erosion, influence generator's work efficiency, and because most of the current oil seal sealing mode is sealed, this mode is often high in cost, and the setting of oil seal will generate certain friction for wind driven generator, influence its start state in the breeze state, is not conducive to improve the power generation efficiency.

[0005] Therefore, the utility model provides a vertical axis wind driven generator waterproof structure to solve the above problems. UTILITY MODEL CONTENTS

[0006] (I) the technical problem solved

[0007] The utility model provides a vertical axis wind driven generator waterproof structure, aims at solving the problem proposed in the background art.

[0008] (II) technical scheme

[0009] To realize the above-mentioned purposes, the utility model provides the following technical scheme:

[0010] A vertical axis wind driven generator waterproof structure, including the casing, the inside rotation of casing is connected with main shaft, the outer wall of main shaft is provided with waterproof subassembly;

[0011] The waterproof assembly comprises a sealing element rotatably connected to the outer wall of the main shaft, a base fixedly connected to the upper top end of the shell at the sealing element, a top base fixedly connected to the lower bottom end of the sealing element at the base, a plurality of rolling balls rotatably connected inside the base and the top base, a waterproof ring fixedly connected to the outer portion of the base, a waterproof scraping strip fixedly connected to the lower bottom end of the top base at the waterproof ring, and the waterproof scraping strip is slidingly connected inside the waterproof ring, wherein the lower bottom end of one of the waterproof rings is provided with a drainage groove, and the inside of the waterproof scraping strip is provided with an evaporation assembly for improving waterproof effect.

[0012] As a preferred technical solution of the present application, the evaporation assembly comprises a rectangular strip fixedly connected to the inner bottom end of the waterproof ring, the outer wall of the rectangular strip is uniformly fixedly connected with convex points, the inside of the waterproof scraping strip is provided with an evaporation groove, and the outer wall of the waterproof scraping strip is fixedly connected with a bimetallic strip at the evaporation groove.

[0013] As a preferred technical solution of the present application, the outer wall of the sealing element is fixedly connected with a ring plate, the lower bottom end of the ring plate is fixedly connected with a plurality of water scraping strips for scraping water, and the outer wall of the water scraping strip is uniformly coated with waterproof paint.

[0014] As a preferred technical solution of the present application, the outer wall of the ring plate is fixedly connected with a plurality of water scraping blades, and the lower bottom end of the water scraping blade is fixedly connected with a rubber brush strip.

[0015] As a preferred technical solution of the present application, the outer wall of the main shaft is fixedly connected with a connecting portion facilitating plug-in rotation, and the lower bottom end of the shell is fixedly connected with a flange plate facilitating installation.

[0016] As a preferred technical solution of the present application, the upper top end of the shell is provided with an inclined groove facilitating drainage, and the inside of the base and the top base is filled with lubricating oil.

[0017] As a preferred technical solution of the present application, the inside of the flange plate is fixedly connected with an internal thread, and the inner bottom end of the flange plate is fixedly connected with a sealing ring improving sealing performance.

[0018] (Three) beneficial effects

[0019] By setting the waterproof assembly, the traditional oil seal can be replaced by the labyrinth sealing mode, the maintenance cost of the oil seal is reduced, the friction of the sealing ring on the motor is reduced, the rolling balls inside the top ring and the bottom ring ensure the smoothness of the rotation during the starting process of the motor, the waterproof scraping strip at the lower end of the top seat continuously scrapes inside the waterproof ring, the impurities entering the inside are removed through the drainage groove, the sealing performance of the generator is ensured under the condition of improving the rotation smoothness, through the evaporation assembly, the bimetallic plate is bent through high temperature of light, then the water in the rectangular strip is evaporated through temperature, the waterproof effect of the generator is improved through layer-by-layer sealing. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of a vertical axis wind driven generator waterproof structure;

[0021] Figure 2 It is an internal structure schematic view of a vertical axis wind driven generator waterproof structure;

[0022] Figure 3 It is a structure schematic view of A in Figure 2 It is a structure schematic view of B in

[0023] Figure 4 It is a drainage groove structure schematic view in a vertical axis wind driven generator waterproof structure;

[0024] Figure 5 It is a structure schematic view of B in Figure 4 It is a water scraping strip structure schematic view in a vertical axis wind driven generator waterproof structure.

[0025] Figure 6 It is a water scraping strip structure schematic view in a vertical axis wind driven generator waterproof structure.

[0026] In the drawing:

[0027] 1, shell;2, main shaft;3, sealing element;4, base;5, top seat;6, rolling ball;7, waterproof ring;8, waterproof scraping strip;9, drainage groove;10, rectangular strip;11, evaporation groove;12, bimetallic sheet;13, ring plate;14, water scraping strip;15, water scraping blade;16, connecting part;17, flange plate;18, inclined chute. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] The utility model provides a vertical axis wind driven generator waterproof structure, like Figures 1-6 As shown in the waterproof structure of vertical axis wind driven generator, including casing 1, the inside rotation of casing 1 is connected with main shaft 2, and the outer wall of main shaft 2 is provided with waterproof assembly;

[0030] The waterproof assembly includes a sealing element 3 rotatably connected to the outer wall of the main shaft 2, a base 4 fixedly connected to the upper end of the casing 1 at the sealing element 3, a top seat 5 fixedly connected to the lower end of the sealing element 3 at the base 4, a plurality of ball bearings 6 rotatably connected inside the base 4 and the top seat 5, a waterproof ring 7 fixedly connected to the outside of the base 4, a waterproof scraping strip 8 fixedly connected to the lower end of the top seat 5 at the waterproof ring 7, and the waterproof scraping strip 8 is slidably connected inside the waterproof ring 7. One of the lower ends of the waterproof ring 7 is provided with a drainage groove 9, and the inside of the waterproof scraping strip 8 is provided with an evaporation assembly to improve the waterproof effect.

[0031] The evaporation assembly includes a rectangular bar 10 fixedly connected to the inner bottom end of the waterproof ring 7, the outer wall of the rectangular bar 10 is uniformly fixedly connected with convex points, the inside of the waterproof scraping strip 8 is provided with an evaporation groove 11, the outer wall of the waterproof scraping strip 8 is fixedly connected with a bimetallic strip 12 at the evaporation groove 11, and the outer wall of the bimetallic strip 12 is coated with a heat-absorbing coating.

[0032] Specific, through the main shaft 2 of the generator, the function of daily rotation power generation can be met, the use of external shell 1 can provide protection for the generator, avoid the external environment to the parts inside it to be destroyed, using waterproof components can be protected from the outside of the rain and snow, avoid water into the generator inside, cause the generator damage, by setting the base 4 on the top of the shell 1, and the top of the sealing element 3 lower end set of seat 5, and the two inside rotating connection of the ball 6, can guarantee the smoothness of the rotation of the two, avoid the traditional oil seal of the motor friction influence, and its inside injection of lubricating oil, can further reduce the friction, when the generator rotates, the waterproof wiper strip 8 of the lower end of the seat 5 will be constantly rotating inside the waterproof ring 7 of the base 4, by rotating can be removed from the inside water, because of the lower end of a waterproof ring 7 on the side of the main shaft 2 is provided with a drainage groove 9, so when the water accumulation will be removed from the drainage groove 9 by the waterproof wiper strip 8, thereby guaranteeing the waterproof of the motor, because of the setting of two waterproof ring 7, so can very good water isolation in the outside, and far from the waterproof ring 7 inside the main shaft 2 is provided with a rectangular strip 10, when the water vapor will be intercepted by the convex point set on the outer wall by using the capillary phenomenon, to prevent entering the next layer of waterproof ring 7, by setting the evaporation groove 11 inside the waterproof wiper strip 8, when the light high temperature, the heat will be absorbed by the bimetallic strip 12 at the port of the evaporation groove 11, because the bimetallic strip 12 is coated with a heat absorbing coating, so it can better absorb heat, and then through the material thermal of the bimetallic strip 12, by heating bending will open the evaporation groove 11, facilitate the high temperature to the outer waterproof ring 7, evaporate the water in the rectangular strip 10, so as to ensure the waterproof effect of the generator, protect the internal parts of the generator from being affected.

[0033] The outer wall of the sealing element 3 is fixedly connected with the ring plate 13, and a plurality of water scraping strips 14 for scraping water are fixedly connected to the lower end of the ring plate 13.

[0034] The outer wall of the ring plate 13 is fixedly connected with a plurality of water scraping blades 15, and the lower end of the water scraping blade 15 is fixedly connected with a rubber brush strip.

[0035] The outer wall of the main shaft 2 is fixedly connected with a connecting portion 16 convenient for inserting and rotating, and the lower end of the shell 1 is fixedly connected with a flange plate 17 convenient for mounting.

[0036] The upper end of the shell 1 is provided with an inclined groove 18 convenient for draining water, and the inside of the base 4 and the top 5 is filled with lubricating oil.

[0037] The inner thread is fixedly connected in the flange plate 17, and the sealing ring for improving the sealing performance is fixedly connected to the inner bottom end of the flange plate 17.

[0038] Specific, by fixedly connected to the outer wall of the sealing element 3 ring plate 13, can be driven by rotating the outer wall of the wiper blade 15 constantly on the top of the shell 1 rainwater scraping, to avoid excessive rainwater into the generator, when the wiper blade 15 rotates, ring plate 13 lower end of the wiper strip 14 also rotates, the wiper blade 15 not removed by the water scraping, to avoid further flow into the waterproof ring 7, through the outer wall of the main shaft 2 connecting part 16 can be easily installed outside the settings, improve the installation efficiency, flange 17 is also convenient for the lower fixed end of the shell 1 quick installation and disassembly, using the inner wall of the fixed connection of the internal thread can improve the connection tightness, through the sealing ring can improve the connection tightness, improve the service life of the motor, by setting the inclined slot 18 on the top of the shell 1, is to guide the falling rainwater, through the inclined groove can quickly flow discharge, reduce the impact of rain on the generator, the device structure is simple, through the layers of protection, can further reduce the influence of external rain on the motor, improve the waterproof effect of the generator, and reduce the friction force on the generator, help to improve the production efficiency of the generator.

[0039] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art within the technical range disclosed by the present application, according to the technical scheme and the utility model concept of the present application, equivalent replacement or change, should be covered within the protection scope of the present application.

Claims

1. A vertical axis wind turbine waterproof structure comprising a housing (1), characterized in that: The shell (1) is rotatably connected with a main shaft (2), and the outer wall of the main shaft (2) is provided with a waterproof assembly; The waterproof assembly comprises a sealing element (3) rotatably connected to the outer wall of the main shaft (2), the upper top end of the shell (1) is fixedly connected with a base (4) at the sealing element (3), the lower bottom end of the sealing element (3) is fixedly connected with a top seat (5) at the base (4), a plurality of rolling balls (6) are rotatably connected inside the base (4) and the top seat (5), the outer part of the base (4) is fixedly connected with a waterproof ring (7), the lower bottom end of the top seat (5) is fixedly connected with a waterproof scraping strip (8) at the waterproof ring (7), and the waterproof scraping strip (8) is slidably connected inside the waterproof ring (7), the lower bottom end of one of the waterproof rings (7) is provided with a drainage groove (9), and the inside of the waterproof scraping strip (8) is provided with an evaporation assembly for improving waterproof effect.

2. A vertical axis wind turbine according to claim 1, wherein: The evaporation assembly comprises a rectangular strip (10) fixedly connected to the inner bottom end of the waterproof ring (7), the outer wall of the rectangular strip (10) is uniformly fixedly connected with convex points, the inside of the waterproof scraping strip (8) is provided with an evaporation groove (11), the outer wall of the waterproof scraping strip (8) is fixedly connected with a bimetallic strip (12) at the evaporation groove (11), and the outer wall of the bimetallic strip (12) is coated with a heat-absorbing coating.

3. A vertical axis wind turbine according to claim 2, wherein: The outer wall of the sealing element (3) is fixedly connected with a ring plate (13), the lower bottom end of the ring plate (13) is fixedly connected with a plurality of water scraping strips (14) for scraping water, and the outer wall of the water scraping strip (14) is uniformly coated with waterproof paint.

4. A vertical axis wind generator waterproof structure according to claim 3, characterized in that: The outer wall of the ring plate (13) is fixedly connected with a plurality of water scraping blades (15), and the lower bottom end of the water scraping blade (15) is fixedly connected with a rubber brush strip.

5. A vertical axis wind turbine according to claim 1, wherein: The outer wall of the main shaft (2) is fixedly connected with a connecting part (16) for facilitating plug-in rotation, and the lower bottom end of the shell (1) is fixedly connected with a flange plate (17) for facilitating installation.

6. A vertical axis wind turbine according to claim 1, wherein: The upper top end of the shell (1) is provided with an inclined chute (18) for facilitating drainage, and the inside of the base (4) and the top seat (5) is filled with lubricating oil.

7. A vertical axis wind generator waterproof structure according to claim 5, characterized in that: The inside of the flange plate (17) is fixedly connected with an internal thread, and the inner bottom end of the flange plate (17) is fixedly connected with a sealing ring for improving sealing performance.