CN212250328U - Vertical axis wind turbine - Google Patents

Vertical axis wind turbine Download PDF

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Publication number
CN212250328U
CN212250328U CN202021506132.9U CN202021506132U CN212250328U CN 212250328 U CN212250328 U CN 212250328U CN 202021506132 U CN202021506132 U CN 202021506132U CN 212250328 U CN212250328 U CN 212250328U
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CN
China
Prior art keywords
wind wheel
wind
cantilever
vertical axis
fan blade
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Active
Application number
CN202021506132.9U
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Chinese (zh)
Inventor
叶杉
叶芃
叶常宾
叶大卫
叶羽纺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Xianyou Electrical Machinery Co ltd
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Fujian Xianyou Electrical Machinery Co ltd
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Priority to CN202021506132.9U priority Critical patent/CN212250328U/en
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Publication of CN212250328U publication Critical patent/CN212250328U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/74Wind turbines with rotation axis perpendicular to the wind direction

Abstract

The utility model relates to a vertical axis wind turbine, which comprises a wind wheel, a generator and a support column; wherein: the wind wheel comprises an upper wind wheel and a lower wind wheel which are opposite in rotation direction and are correspondingly fixed with the inner rotor and the motor shell to form that the inner rotor and an armature winding fixed on the shell rotate reversely, and the rotating speed of the generator is the sum of the rotating speeds of the upper wind wheel and the lower wind wheel; the rotating speed of the generator is increased, the torque is reduced, and the diameter of the wind wheel can be correspondingly reduced; and the fan blade angle adjustment is matched, so that the fan can rotate in a low wind environment and can ensure the safety of operation in a high wind environment.

Description

Vertical axis wind turbine
The technical field is as follows:
the utility model belongs to the wind power generation field, in particular to vertical axis aerogenerator especially adopts two wind wheel counter-rotation designs to improve the magnetic force line relative motion speed between the interior outer rotor of motor, also motor speed is two wind wheel rotational speeds stack.
Meanwhile, the angle of the windward side of the fan blade can be adjusted according to the wind power, the fan blade is vertical in the case of small wind, and the fan blade is horizontal in the case of large wind, so that the problem that the fan blade can rotate in a small wind environment and can meet the requirement of safe operation of equipment in the case of large wind is solved.
Background art:
the wind power generation is divided into a horizontal shaft and a vertical shaft, and the horizontal shaft wind power generator is not friendly to the environment, so that the installation of large and medium horizontal shafts on the land is limited in some places. The vertical axis fan has low noise due to small tip speed ratio (ratio of linear speed of a tip point outside a fan blade to external wind speed), and the research on the vertical axis fan is increasingly increased in recent years. Similarly, as the power of the wind driven generator increases, the diameters and heights of the blades and the wind wheel also increase correspondingly, which brings difficulty to the manufacture and operation of the blades and the wind wheel.
For a vertical wind generator, the larger the diameter the larger the centrifugal force, the lower the speed at the same linear speed, the larger the volume of the motor. The fan blades have large area, the low-speed starting performance is good in the case of small wind, but the safe operation of the fan is influenced in the case of large wind, for example, the patent
Application number 201410029191.4 discloses two pendulum leaf vertical axis wind generating set of multilayer exhibition wing, including generator, at least two-layer wind wheel and rack mechanism, at least two-layer wind wheel is installed in rack mechanism from supreme down in proper order. The wind wheel comprises a wind wheel, a support rod, a first pin shaft, a compression spring and a steel wire rope, wherein the first pin shaft, the compression spring and the steel wire rope are used for keeping an upper blade and a lower blade in a vertical state within a rated wind speed range so as to obtain the maximum windward area. Although the multilayer vertical wind driven generator solves the problem of the windward angle of the fan blades in strong wind, the rotation speed of the generator cannot be increased under the condition of equivalent area of the fan blades due to the design of the multilayer wind wheel.
Therefore, how to solve the problem of the rotating speed of the generator is the object of the present invention.
The invention content is as follows:
the utility model aims at designing a vertical axis wind driven generator which adopts double wind wheels with opposite rotation directions to improve the relative rotation speed; meanwhile, the wind wheel capable of adjusting the angle of the fan blades is designed, the vertical windward area is large in the case of small wind, the generator can output electric energy, and the fan blades are horizontal in the case of large wind, so that the safety of equipment is protected.
The utility model discloses technical scheme realizes like this: a vertical axis wind turbine comprises a wind wheel, a generator and a support column; the method is characterized in that: the wind wheel comprises an upper wind wheel and a lower wind wheel which are opposite in rotation direction, and the upper wind wheel and the lower wind wheel are correspondingly fixed with the inner rotor and the motor shell to form reverse rotation of the inner rotor and an armature winding fixed on the shell, the motor shell is rotationally positioned on the supporting column through the supporting shaft, and the armature winding is electrically connected with the collecting ring on the supporting shaft and is led out through the carbon brush on the supporting column.
The wind wheel comprises a wind wheel seat, a cantilever and a fan blade, the fan blade is fixed at one end of the cantilever, the other end of the cantilever is rotationally positioned on the wind wheel seat, and a small bevel gear is arranged at the end part; the wind wheel seat is provided with a large bevel gear in an upper shaft positioning mode, the large bevel gear is driven by a servo motor and meshed with the small bevel gear, and the servo motor drives more than one fan blade which is distributed on the wind wheel seat in an array mode to adjust the angle.
One end or the middle part of the fan blade is fixedly locked on the cantilever and can be adjusted along with the cantilever in the direction from vertical to horizontal.
The utility model adopts a double wind wheel structure with opposite rotation directions, and correspondingly drives the inner rotor and the armature winding fixed on the shell to move oppositely, and the rotating speed of the generator is the sum of the rotating speeds of the upper wind wheel and the lower wind wheel; the rotating speed of the generator is increased, the torque is reduced, and the diameter of the wind wheel can be correspondingly reduced; in addition, in order to solve the problem that the fan blades can rotate in a low wind environment and meet the operation safety in a high wind environment, the fan blades adopt an adjustable design, the fan blades face the wind in a large area vertically in the low wind, the fan blades incline to reduce the windward area in the high wind, and the fan blades can be laid down to be horizontal in the typhoon, so that the windward side is basically avoided, and the equipment is protected.
Description of the drawings:
the present invention will be further explained with reference to the following specific drawings:
FIG. 1 is a schematic view of a vertical axis wind turbine in an operating state
FIG. 2 is a schematic view of a wind wheel in an operating state
FIG. 3 is a schematic view of a vertical axis wind turbine under protection
FIG. 4 is a schematic view of a wind wheel in a protection state
FIG. 5 is a schematic cross-sectional view of a vertical axis generator
Wherein
1-wind wheel 1A-upper wind wheel 1B-lower wind wheel
11-wind wheel seat 111-big bevel gear 12-cantilever
121-small bevel gear 13-fan blade 2-generator
21-inner rotor 22-motor housing 23-armature winding
24-support shaft 241-collecting ring 3-support column
31-carbon brush
The specific implementation mode is as follows:
referring to fig. 1 to 5, a vertical axis wind turbine includes a rotor 1, a generator 2, and a support column 3; the wind wheel 1 comprises an upper wind wheel 1A and a lower wind wheel 1B which have opposite rotating directions and are correspondingly fixed with an inner rotor 21 and a motor shell 22 to form that the inner rotor 21 and an armature winding 13 fixed on the shell rotate reversely, and the working rotating speed is equal to the sum of the two.
The motor housing 22 is rotatably positioned on the support column 3 through the support shaft 24, and the armature winding 23 is electrically connected with the slip ring 241 on the support shaft 24 and led out through the carbon brush 31 on the support column 3.
The wind wheel 1 comprises a wind wheel seat 11, a cantilever 12 and a fan blade 13; the fan blade 13 is fixed at one end of the cantilever 12, the other end of the cantilever 12 is rotationally positioned on the wind wheel seat 11, and a small bevel gear 121 is arranged at the end part; more specifically, one end or the middle part of the fan blade 13 is locked on the cantilever 12 and can be adjusted along with the cantilever 12 from the vertical direction to the horizontal direction. In the figure, one end of a fan blade 13 is fixed at the end of a cantilever 12, and the two wind wheels are symmetrical in a mirror direction and can also be designed into a same-direction overlapping structure, and the windward sides of the fan blades on the two wind wheels 1 are designed oppositely so as to meet the requirement of opposite rotation directions. And the scheme that the middle part of the fan blade 13 is fixed at the end part of the cantilever is utilized, namely the swinging torque is smaller and the stability is better.
A large bevel gear 111 driven by a servo motor is positioned on the wind wheel seat 11, the large bevel gear 111 is meshed with the small bevel gear 121, and the servo motor drives more than one fan blades 13 distributed on the wind wheel seat in an array to adjust the angle, namely the angle of the fan blades 13 is synchronously adjusted. The servo motor is controlled by a wind wheel rotation speed sensor or a wind speed sensor, the angle of the fan blade 13 is adjusted step by a control circuit according to the rotation speed, and the fan blade 13 can be adjusted from the vertical direction to the horizontal direction through the rotation of the cantilever 12, so that the servo motor is suitable for the adjustment from breeze to typhoon wide wind speed range, and the safety of equipment is protected.
And the servo motor power supply and the cables of the sensor and the control circuit can be electrically connected by conventional schemes such as a hollow shaft, a carbon brush and the like.

Claims (3)

1. A vertical axis wind turbine comprises a wind wheel, a generator and a support column; the method is characterized in that: the wind wheel comprises an upper wind wheel and a lower wind wheel which are opposite in rotation direction, and the upper wind wheel and the lower wind wheel are correspondingly fixed with the inner rotor and the motor shell to form reverse rotation of the inner rotor and an armature winding fixed on the shell, the motor shell is rotationally positioned on the supporting column through the supporting shaft, and the armature winding is electrically connected with the collecting ring on the supporting shaft and is led out through the carbon brush on the supporting column.
2. A vertical axis wind turbine as claimed in claim 1, wherein: the wind wheel comprises a wind wheel seat, a cantilever and a fan blade, the fan blade is fixed at one end of the cantilever, the other end of the cantilever is rotationally positioned on the wind wheel seat, and a small bevel gear is arranged at the end part; the wind wheel seat is provided with a large bevel gear in an upper shaft positioning mode, the large bevel gear is driven by a servo motor and meshed with the small bevel gear, and the servo motor drives more than one fan blade which is distributed on the wind wheel seat in an array mode to adjust the angle.
3. A vertical axis wind turbine as claimed in claim 1 or 2, wherein: one end or the middle part of the fan blade is fixedly locked on the cantilever and can be adjusted along with the cantilever in the direction from vertical to horizontal.
CN202021506132.9U 2020-07-27 2020-07-27 Vertical axis wind turbine Active CN212250328U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021506132.9U CN212250328U (en) 2020-07-27 2020-07-27 Vertical axis wind turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021506132.9U CN212250328U (en) 2020-07-27 2020-07-27 Vertical axis wind turbine

Publications (1)

Publication Number Publication Date
CN212250328U true CN212250328U (en) 2020-12-29

Family

ID=73981087

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021506132.9U Active CN212250328U (en) 2020-07-27 2020-07-27 Vertical axis wind turbine

Country Status (1)

Country Link
CN (1) CN212250328U (en)

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