WO2009145390A1 - Rotational main body for windmill - Google Patents

Rotational main body for windmill Download PDF

Info

Publication number
WO2009145390A1
WO2009145390A1 PCT/KR2008/005158 KR2008005158W WO2009145390A1 WO 2009145390 A1 WO2009145390 A1 WO 2009145390A1 KR 2008005158 W KR2008005158 W KR 2008005158W WO 2009145390 A1 WO2009145390 A1 WO 2009145390A1
Authority
WO
WIPO (PCT)
Prior art keywords
main body
wing
windmill
coupling
boss
Prior art date
Application number
PCT/KR2008/005158
Other languages
French (fr)
Inventor
In Ho Won
Original Assignee
In Ho Won
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by In Ho Won filed Critical In Ho Won
Publication of WO2009145390A1 publication Critical patent/WO2009145390A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/221—Rotors for wind turbines with horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • F05B2260/301—Retaining bolts or nuts
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present invention relates to a rotational main body for windmill, which allows the number of wings to be adjusted to produce an electric energy even at a wind speed of about 2 m/s and allows a wing coupling plate and a wing pole to be formed for facilitating assembly and sate coupling with a wing.
  • a propeller-type windmill, a Savonius type windmill, a Darrieus type windmill, a multi-wing type windmill of U.S.A., and a helical type windmill are representative ones of the related art.
  • the invention is directed to a rotational body for windmill, which forms a wing coupling plate at an outer circumference of a main body, punctures twelve wing coupling holes in the wing coupling plate at a 30 degree interval based on a central axis of the wing coupling plate, and inserts and fits wind poles to the respective wing coupling holes to be integrated together, thereby obtaining a function of the windmill.
  • the windmill can be easily installed while the number of wings is adjusted depending on the wind speed such as in areas having an average wind speed of 3 m/s, 4 m/s, 5 m/s, 6 m/s, so that an electric power generation efficiency can be enhanced.
  • FIG. 1 illustrates a perspective diagram of a rotational main body for windmill.
  • FIG. 2 illustrates a perspective diagram of a cut wing.
  • FIG. 3 illustrates a cross-sectional diagram of a rotational main body for windmill.
  • FIG. 4 illustrates a perspective diagram of a rotational main body.
  • FIG. 5 illustrates cross-sectional diagram of a rotational main body.
  • FIG. 6 illustrates a perspective diagram of a cut wing. [Best Modes]
  • a rotational main body for windmill includes: a main body 1 ; a boss 3 disposed at a central portion of the main body for allowing the boss to be fit to a horizontal axis; a wing coupling plate 2 disposed at an outer circumference of the main body 1 , inclined at 5 ° (9) from a vertical axis of a side cross-section of the main body, and having twelve punctured coupling holes 4 for coupling wings; and wing plates 6 having respective wing poles 5 and respective insert slots 8, wherein the insert slots are fit and secured to the coupling holes 4 to be integrated by means of bolts and nuts.
  • a rotational main body for windmill includes: a main body 12; a boss 3' disposed at a central portion of the main body for allowing the boss to be fit to a horizontal axis; a wing coupling plate 11 disposed at an outer circumference of the main body 12, and having twelve punctured coupling holes 10 for coupling wings; and wing plates 6 having respective wing poles 5 and respective insert slots 8, wherein the insert slots are fit and secured to the coupling holes 4 to be integrated by means of bolts and nuts.
  • a rotational main body for windmill includes: a main body 15; a boss 3" disposed at a central portion of the main body for allowing the boss to be fit to a horizontal axis; a trapezoid-shaped wing coupling plate 13 disposed at an outer circumference of the main body 15, and having twelve punctured coupling holes 14 for coupling wings; and wing plates 6' having respective wing poles 5' and respective insert slots 16, wherein the insert slots are fit and secured to the coupling holes 14 to be integrated by means of bolts and nuts.
  • Twelve-wing type windmill of the present invention (pie-shaped wing; 0.5m, attack angle: 10 ° )

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

A rotational main body for windmill is provided, which allows the number of wings to be adjusted to produce an electric energy even at a wind speed of about 2 m/s and allows a wing coupling plate and a wing pole to be formed for facilitating assembly and sate coupling with a wing.

Description

[DESCRIPTION] [INVENTION TITLE]
ROTATIONAL MAIN BODY FOR WINDMILL
[Technical Field]
The present invention relates to a rotational main body for windmill, which allows the number of wings to be adjusted to produce an electric energy even at a wind speed of about 2 m/s and allows a wing coupling plate and a wing pole to be formed for facilitating assembly and sate coupling with a wing.
[Background Art]
A propeller-type windmill, a Savonius type windmill, a Darrieus type windmill, a multi-wing type windmill of U.S.A., and a helical type windmill are representative ones of the related art.
[Disclosure] [Technical Problem]
It is an objective of the present invention to provide a rotational main body for windmill, which facilitates assembly of the rotational body and the wing plate while introducing the multi-wing type in a weak wind region and reducing the number of wings at a strong windy region, thereby producing a required power.
[Technical Solution] In one aspect, the invention is directed to a rotational body for windmill, which forms a wing coupling plate at an outer circumference of a main body, punctures twelve wing coupling holes in the wing coupling plate at a 30 degree interval based on a central axis of the wing coupling plate, and inserts and fits wind poles to the respective wing coupling holes to be integrated together, thereby obtaining a function of the windmill.
[Advantageous Effects]
According to the present invention as described above, the windmill can be easily installed while the number of wings is adjusted depending on the wind speed such as in areas having an average wind speed of 3 m/s, 4 m/s, 5 m/s, 6 m/s, so that an electric power generation efficiency can be enhanced.
[Description of Drawings]
The foregoing and other objects, features and advantages of the invention will be apparent from the more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings.
The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 illustrates a perspective diagram of a rotational main body for windmill. FIG. 2 illustrates a perspective diagram of a cut wing.
FIG. 3 illustrates a cross-sectional diagram of a rotational main body for windmill.
FIG. 4 illustrates a perspective diagram of a rotational main body. FIG. 5 illustrates cross-sectional diagram of a rotational main body. FIG. 6 illustrates a perspective diagram of a cut wing. [Best Modes]
Hereinafter, rotational main bodies for windmill will be described with reference to the accompanying drawings.
A rotational main body for windmill (A) includes: a main body 1 ; a boss 3 disposed at a central portion of the main body for allowing the boss to be fit to a horizontal axis; a wing coupling plate 2 disposed at an outer circumference of the main body 1 , inclined at 5° (9) from a vertical axis of a side cross-section of the main body, and having twelve punctured coupling holes 4 for coupling wings; and wing plates 6 having respective wing poles 5 and respective insert slots 8, wherein the insert slots are fit and secured to the coupling holes 4 to be integrated by means of bolts and nuts.
A rotational main body for windmill (B) includes: a main body 12; a boss 3' disposed at a central portion of the main body for allowing the boss to be fit to a horizontal axis; a wing coupling plate 11 disposed at an outer circumference of the main body 12, and having twelve punctured coupling holes 10 for coupling wings; and wing plates 6 having respective wing poles 5 and respective insert slots 8, wherein the insert slots are fit and secured to the coupling holes 4 to be integrated by means of bolts and nuts.
A rotational main body for windmill (C) includes: a main body 15; a boss 3" disposed at a central portion of the main body for allowing the boss to be fit to a horizontal axis; a trapezoid-shaped wing coupling plate 13 disposed at an outer circumference of the main body 15, and having twelve punctured coupling holes 14 for coupling wings; and wing plates 6' having respective wing poles 5' and respective insert slots 16, wherein the insert slots are fit and secured to the coupling holes 14 to be integrated by means of bolts and nuts. Example Simple comparison of energy generation (when the same wind receiving area is given)
Conventional three-wing windmill (pie-shaped wing; 0.5 m, attack angle: 10° ) Wind speed 3 m/sec; revolution per minute 70 rpm; torque 0.2K
Twelve-wing type windmill of the present invention (pie-shaped wing; 0.5m, attack angle: 10° )
Wind speed 3 m/sec; revolution per minute 120 rpm; torque 0.9K
Conclusion It can be found that the torque of the rotational body of the present invention was increased by 4.5 or more compared to the conventional three- wing type windmill, so that a difference of power 4.5 times in the wind speed state having the same amount.
Preferred embodiments of the present invention have been disclosed herein and, although specific terms are employed, they are used and are to be interpreted in a generic and descriptive sense only and not for purpose of limitation. Accordingly, it will be understood by those of ordinary skill in the art that various changes in form and details may be made without departing from the spirit and scope of the present invention as set forth in the following claims.

Claims

[Claims]
1. A rotational main body for windmill (A) comprising: a main body 1 ; a boss 3 disposed at a central portion of the main body for allowing the boss to be fit to a horizontal axis; a wing coupling plate 2 disposed at an outer circumference of the main body 1 , inclined at 5° (9) from a vertical axis of a side cross-section of the main body, and having twelve punctured coupling holes 4 for coupling wings; and wing plates 6 having respective wing poles 5 and respective insert slots 8, wherein the insert slots are fit and secured to the coupling holes 4 to be integrated by means of bolts and nuts.
2. A rotational main body for windmill (B) comprising: a main body 12; a boss 3' disposed at a central portion of the main body for allowing the boss to be fit to a horizontal axis; a wing coupling plate 11 disposed at an outer circumference of the main body 12, and having twelve punctured coupling holes 10 for coupling wings; and wing plates 6 having respective wing poles 5 and respective insert slots
8, wherein the insert slots are fit and secured to the coupling holes 4 to be integrated by means of bolts and nuts.
3. A rotational main body for windmill (C) comprising: a main body 15; a boss 3" disposed at a central portion of the main body for allowing the boss to be fit to a horizontal axis; a trapezoid-shaped wing coupling plate 13 disposed at an outer circumference of the main body 15, and having twelve punctured coupling holes 14 for coupling wings; and wing plates 6' having respective wing poles 5' and respective insert slots 16, wherein the insert slots are fit and secured to the coupling holes 14 to be integrated by means of bolts and nuts.
PCT/KR2008/005158 2008-05-30 2008-09-02 Rotational main body for windmill WO2009145390A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080050678A KR100962148B1 (en) 2008-05-30 2008-05-30 Rotator and wing plate of prefabricated windmill
KR10-2008-0050678 2008-05-30

Publications (1)

Publication Number Publication Date
WO2009145390A1 true WO2009145390A1 (en) 2009-12-03

Family

ID=41377245

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/005158 WO2009145390A1 (en) 2008-05-30 2008-09-02 Rotational main body for windmill

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KR (1) KR100962148B1 (en)
WO (1) WO2009145390A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102578467B1 (en) 2023-02-22 2023-09-14 주식회사 근옥 Prefabricated swirl plate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000249037A (en) * 1999-03-01 2000-09-12 Matsumura Kikai Seisakusho:Kk Blade attaching structure of windmill
JP3133195B2 (en) * 1992-06-26 2001-02-05 三菱自動車工業株式会社 Luggage transport escalator device
JP2007071122A (en) * 2005-09-07 2007-03-22 Onwave Corp Bracing strut in micro wind turbine generator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3133195B2 (en) * 1992-06-26 2001-02-05 三菱自動車工業株式会社 Luggage transport escalator device
JP2000249037A (en) * 1999-03-01 2000-09-12 Matsumura Kikai Seisakusho:Kk Blade attaching structure of windmill
JP2007071122A (en) * 2005-09-07 2007-03-22 Onwave Corp Bracing strut in micro wind turbine generator

Also Published As

Publication number Publication date
KR100962148B1 (en) 2010-06-14
KR20090124447A (en) 2009-12-03

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