CN114865841A - Shaftless direct-drive full-power permanent magnet wind driven generator - Google Patents

Shaftless direct-drive full-power permanent magnet wind driven generator Download PDF

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Publication number
CN114865841A
CN114865841A CN202210469598.3A CN202210469598A CN114865841A CN 114865841 A CN114865841 A CN 114865841A CN 202210469598 A CN202210469598 A CN 202210469598A CN 114865841 A CN114865841 A CN 114865841A
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CN
China
Prior art keywords
permanent magnet
rotor
end cover
shaftless
direct
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202210469598.3A
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Chinese (zh)
Inventor
陈志国
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202210469598.3A priority Critical patent/CN114865841A/en
Publication of CN114865841A publication Critical patent/CN114865841A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Wind Motors (AREA)

Abstract

The invention discloses a shaftless direct-drive full-power permanent magnet wind driven generator which comprises a machine shell, wherein a plurality of mounting pieces are uniformly connected and arranged on the inner wall of the machine shell, a stator is connected and arranged on the mounting pieces, the stator consists of a coil winding and internally comprises a plurality of silicon steel sheets, a rotor is rotatably connected and arranged in the stator, a plurality of permanent magnet mounting blocks are uniformly connected and arranged on the outer wall of the rotor, permanent magnets are connected and arranged in the permanent magnet mounting blocks, a plurality of spiral fan blades are uniformly connected and arranged in the rotor, a front end cover is connected and arranged at the front end of the machine shell, a rear end cover is connected and arranged at the rear end of the machine shell, a plurality of cooling ports are respectively arranged on the front end cover and the rear end cover, a fairing is connected and arranged at one end of the rotor close to the front end cover, and a tail vane is connected and arranged on the machine shell. Compared with the prior art, the invention has the advantages that: novel structure, reasonable in design, small, the generating efficiency is high.

Description

Shaftless direct-drive full-power permanent magnet wind driven generator
Technical Field
The invention relates to the technical field of wind driven generators, in particular to a shaftless direct-drive full-power permanent magnet wind driven generator.
Background
With the enhancement of human energy crisis and environmental awareness, the world energy structure is undergoing a huge transformation, namely the transformation from a fossil energy system to a sustainable new energy system based on renewable energy, so that renewable energy is vigorously developed, the energy structure is improved, the contradiction between supply and demand of resources is relieved, the ecological environment is protected, the coordination, health and sustainable development of economy, society and nature are realized, the renewable energy is a consensus of human society and is different from conventional fossil energy (coal, petroleum and natural gas), the renewable energy comprises hydroenergy, wind energy, solar energy, biomass energy, geothermal energy, ocean energy and the like, and among the numerous new energy, the power generation utilization and development of wind energy resources are earlier, and the renewable energy are now a key field for developing new energy and renewable energy with the advantages of cleanness, no pollution, low operation cost and the like.
The existing wind driven generator can be divided into a wind wheel, a cabin, a tower and a foundation on the whole, the generating power is different from hundreds of watts to several megawatts, and the existing wind driven generator can be divided into two types from the direction of a wind wheel shaft of the existing wind driven generator: firstly, a horizontal axis wind driven generator, wherein a rotating shaft of a wind wheel is parallel to the wind direction; a rotating shaft of a wind wheel is vertical to the ground or the airflow direction; the wind wheels of the wind power generator and the wind wheel are used as stress mechanisms of the wind power generator, and the diameter of the wind wheels determines the range within which the unit can obtain the energy contained in the wind. However, most of the existing wind driven generators are large in size, inconvenient to transport, low in working efficiency and low in generating efficiency, and cannot meet the use requirements, so that a shaftless direct-drive full-power permanent magnet wind driven generator is urgently needed to solve the problems.
Disclosure of Invention
The invention aims to solve the technical problems and provides a shaftless direct-drive full-power permanent magnet wind driven generator which is novel in structure, reasonable in design, small in size and high in generating efficiency.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a shaftless direct-drive full-power permanent magnet wind power generator comprises a housing, wherein a plurality of mounting sheets are uniformly connected and arranged on the inner wall of the housing, a stator is connected and arranged on the mounting sheets, the stator is composed of a coil winding and internally comprises a plurality of silicon steel sheets, a rotor is rotatably connected and arranged in the stator, two ends of the rotor extend out of the housing, a plurality of permanent magnet mounting blocks are uniformly connected and arranged on the outer wall of the rotor, permanent magnets are connected and arranged in the permanent magnet mounting blocks, a plurality of spiral fan blades are uniformly connected and arranged in the rotor, a front end cover is connected and arranged at the front end of the housing, a rear end cover is connected and arranged at the rear end of the housing, bearings are connected and arranged in the front end cover and the rear end cover, the inner diameter of each bearing is sleeved on the outer wall of the rotor, a plurality of cooling ports are respectively arranged on the front end cover and the rear end cover, a fairing is connected and arranged at one end of the rotor close to the front end cover, and comprises a cylindrical barrel, the cylinder is connected with a horn cylinder, the horn cylinder is connected with an outward-turning ring, the outer wall of the horn cylinder is uniformly connected with a plurality of cooling fan blades, the cooling fan blades are connected with the outward-turning ring, and the casing is connected with a tail rudder.
In an improvement, the stator is cylindrical as a whole, and the rotor is cylindrical as a whole.
As an improvement, the permanent magnet installation blocks are integrally in an inverted convex shape, grooves are formed in the permanent magnets, the permanent magnets are installed between the two adjacent permanent magnet installation blocks, and the grooves in the permanent magnets are matched with the protrusions in the permanent magnet installation blocks for use.
As an improvement, a plurality of first mounting holes are formed in the two ends of the machine shell, a plurality of second mounting holes are formed in the front end cover and the rear end cover, the second mounting holes and the first mounting holes are matched for use, and the front end cover and the rear end cover are mounted on the machine shell through bolts and nuts.
As an improvement, a plurality of air guide openings are formed between the fairing and the cooling fan blades.
As an improvement, an installation step is arranged in the cylindrical barrel and is sleeved on the outer wall of the rotor.
As an improvement, the cylindrical tube, the horn tube and the outward turning ring are integrally formed.
As an improvement, the connecting part of the outward turning ring and the horn cylinder is in smooth transition.
After adopting the structure, the invention has the following advantages:
the invention has novel structure, reasonable design, compact integral structure and small occupied area, and the rotor with a cylindrical structure is adopted, and the structure of the spiral fan blade is arranged in the cylindrical rotor, so that the swept air area of the spiral fan blade is greatly improved, and the utilization efficiency of wind energy is obviously improved;
secondly, by adopting a horn-shaped fairing structure, the wind speed entering the direction of the rotor helical fan can be further improved, so that the wind energy in the projection range of the fairing is fully utilized;
thirdly, through the arrangement of the air guide opening, part of wind energy directly passes through a gap between the stator and the rotor to cool the whole wind power generation device, so that the working temperature during wind power generation is effectively controlled, and the damage caused by high temperature is avoided;
and fourthly, the tail vane is arranged, the direction of the shaftless direct-drive full-power permanent magnet wind driven generator can be adjusted according to different wind directions, wind enters from the horn cylinder all the time, the wind energy utilization rate is further improved, and the practicability is better.
Drawings
FIG. 1 is a schematic structural diagram of a shaftless direct-drive full-power permanent magnet wind power generator according to the present invention.
FIG. 2 is an exploded view of a shaftless direct drive full power permanent magnet wind generator according to the present invention.
FIG. 3 is a structural diagram of the installation of a silicon steel sheet in a shaftless direct-drive full-power permanent magnet wind power generator according to the present invention.
FIG. 4 is a side view of the installation of a silicon steel sheet in a shaftless direct-drive full-power permanent magnet wind power generator according to the present invention.
Fig. 5 is a sectional view taken along a-a in fig. 4.
FIG. 6 is a schematic structural diagram of a rotor in a shaftless direct-drive full-power permanent magnet wind turbine according to the present invention.
FIG. 7 is a side view of the rotor of a shaftless direct drive full power permanent magnet wind turbine of the present invention.
FIG. 8 is a schematic structural diagram of a wind deflector in a shaftless direct-drive full-power permanent magnet wind turbine according to the present invention.
Fig. 9 is a sectional view taken in the direction B-B in fig. 8.
As shown in the figure: 1. a housing; 2. mounting a sheet; 3. a stator; 4. silicon steel sheets; 5. a rotor; 6. a permanent magnet mounting block; 7. a permanent magnet; 8. a helical fan blade; 9. a front end cap; 10. a rear end cap; 11. a bearing; 12. a cooling port; 13. a cowling; 14. a cylindrical barrel; 15. a horn; 16. an everting ring; 17. cooling the fan blades; 18. a first mounting hole; 19. a second mounting hole; 20. mounting a step; 21. and a tail rudder.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation configuration and operation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "provided", "mounted", "connected", and the like are used in a broad sense and are intended to be inclusive, e.g., that they may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or intercommunicated between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention will be described in further detail with reference to the accompanying drawings.
With reference to the attached figures 1-9, a shaftless direct-drive full-power permanent magnet wind power generator comprises a casing 1, wherein a plurality of mounting sheets 2 are uniformly connected to the inner wall of the casing 1, a stator 3 is connected to the mounting sheets 2, the stator 3 is cylindrical as a whole, the stator 3 is composed of a coil winding and internally comprises a plurality of silicon steel sheets 4, a rotor 5 is rotatably connected to the stator 3, the rotor 5 is cylindrical as a whole, two ends of the rotor 5 extend out of the casing 1, a plurality of permanent magnet mounting blocks 6 are uniformly connected to the outer wall of the rotor 5, permanent magnets 7 are connected to the permanent magnet mounting blocks 6, the permanent magnet mounting blocks 6 are inverted-convex as a whole, grooves are arranged on the permanent magnets 7, the permanent magnets 7 are arranged between two adjacent permanent magnet mounting blocks 6, and the grooves on the permanent magnets 7 are matched with the protrusions on the permanent magnet mounting blocks 6, the rotor 5 is internally and uniformly connected with a plurality of spiral fan blades 8, the front end of the casing 1 is connected with a front end cover 9, the rear end of the casing 1 is connected with a rear end cover 10, both ends of the casing 1 are respectively provided with a plurality of mounting holes 18, both the front end cover 9 and the rear end cover 10 are respectively provided with a plurality of mounting holes 19, the mounting holes 19 and the mounting holes 18 are matched for use, the front end cover 9 and the rear end cover 10 are mounted on the casing 1 through bolts and nuts, the front end cover 9 and the rear end cover 10 are internally connected with a bearing 11, the inner diameter of the bearing 11 is sleeved on the outer wall of the rotor 5, both the front end cover 9 and the rear end cover 10 are respectively provided with a plurality of cooling ports 12, one end of the rotor 5 close to the front end cover 9 is connected with a fairing 13, a plurality of air guide ports are arranged in the fairing 13, the fairing 13 comprises a cylindrical tube 14, and a mounting step 20 is arranged in the cylindrical tube 14, the mounting step 20 is sleeved on the outer wall of the rotor 5, the cylindrical tube 14 is connected with the horn tube 15, the outward turning ring 16 is connected to the horn tube 15, the cylindrical tube 14, the horn tube 15 and the outward turning ring 16 are integrally formed, the smooth transition of the joint of the outward turning ring 16 and the horn tube 15 is realized, the outer wall of the horn tube 15 is uniformly connected with the plurality of cooling fan blades 17, a plurality of air guide openings are formed between the fairing 13 and the cooling fan blades 17, the cooling fan blades 17 are connected with the outward turning ring 16, and the tail rudder 21 is connected to the casing 1.
In the concrete implementation of the invention, the rotor 5 is a cylindrical structure, the inner wall of the rotor is fixed with at least one spiral helical fan blade 8, the outer edge of the helical fan blade 8 is fixed on the inner wall of the cylindrical rotor 5 by welding or bonding, etc., the permanent magnet 7 is evenly embedded in the cylindrical outer wall of the rotor 5, the rotor 5 is fixed on the casing 1 by the bearings 11 arranged at both ends of the rotor, the invention adopts the structure, the air inlet area of the motor is increased as large as possible, so as to improve the generating efficiency, because the rotor 5 and the stator 3 can generate heat in the generating process, the front end of the rotor 5 is provided with the bell-mouthed fairing 13, the smaller end of the fairing 13 is fixed on the rotor 5, the outer diameter and the inner diameter of the cylindrical barrel 14 and the rotor 5 are the same, so as to ensure that the inner wall is smooth and reduce the wind resistance, one end of the larger bell-mouthed barrel 15 of the fairing 13 extends forwards and outwards and shields the front end cover 9, that is, by the structure of the horn 15, all the air projected from the front of the stator 3 and the rotor 5 is guided into the wind power generation stator 3 and the rotor 5 for utilization, the wind power generation device adopting the structure of the fairing 13 can further improve the wind speed passing through the rotor 5 by enlarging the air inlet area, the front end cover 9 and the rear end cover 10 are in a ring shape, the front end cover 9 and the rear end cover 10 are both provided with cooling ports 12 corresponding to the position of the circular gap between the stator 3 and the rotor 5, the cooling ports 12 are uniformly distributed on the circumference of the circular gap between the stator 3 and the rotor 5, the front end cover 9 and the rear end cover 10 have the same structure, the structure guides part of the air into the generator through the air guide port on the fairing 13 and the cooling port 12 on the front end cover 9, and leads the air to pass through the gap between the stator 3 and the rotor 5, after cooling stator 3 and rotor 5, discharge from cooling hole 12 of rear end cap 10 again, thereby realize cooling down the engine, avoid because the generator that high temperature leads to damages, tail vane 21 can adjust the direction that shaftless directly drives full power permanent magnet wind power generator according to the wind direction of difference, make wind get into in the horn section of thick bamboo 15 all the time, and then improve wind energy utilization, still be fixed with the controller on casing 1, realize adjusting and control to shaftless directly driving full power permanent magnet wind power generator circuit, the generating efficiency is high, and the practicality is better.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should be able to conceive of the present invention without creative design of the similar structural modes and embodiments without departing from the spirit of the present invention, and all such modifications should fall within the protection scope of the present invention.

Claims (8)

1. The utility model provides a shaftless directly drives full power permanent magnet wind power generator, includes casing (1), its characterized in that: the inner wall of the casing (1) is uniformly connected with a plurality of installation sheets (2), the installation sheets (2) are connected with a stator (3), the stator (3) is composed of a coil winding and internally comprises a plurality of silicon steel sheets (4), the stator (3) is internally connected with a rotor (5) in a rotating manner, two ends of the rotor (5) extend out of the casing (1), the outer wall of the rotor (5) is uniformly connected with a plurality of permanent magnet installation blocks (6), permanent magnets (7) are connected in the permanent magnet installation blocks (6), a plurality of spiral fan blades (8) are connected in the rotor (5), the front end of the casing (1) is connected with a front end cover (9), the rear end of the casing (1) is connected with a rear end cover (10), the front end cover (9) and the rear end cover (10) are connected with a bearing (11), and the inner diameter of the bearing (11) is sleeved on the outer wall of the rotor (5), all be equipped with a plurality of cooling mouths (12) on front end housing (9) and rear end housing (10), rotor (5) are close to the one end connection of front end housing (9) and are equipped with radome fairing (13), radome fairing (13) include cylinder (14), cylinder (14) are gone up to connect and are equipped with horn section of thick bamboo (15), the connection is equipped with ring (16) of turning up on horn section of thick bamboo (15), evenly connect on horn section of thick bamboo (15) outer wall and be equipped with a plurality of cooling flabellum (17), cooling flabellum (17) are connected with ring (16) of turning up, it is equipped with tail vane (21) to connect on casing (1).
2. The shaftless direct-drive full-power permanent magnet wind power generator according to claim 1, wherein: the stator (3) is cylindrical as a whole, and the rotor (5) is cylindrical as a whole.
3. The shaftless direct-drive full-power permanent magnet wind power generator according to claim 1, wherein: the permanent magnet installation block (6) is integrally in the shape of an inverted convex character, a groove is formed in the permanent magnet (7), and the permanent magnet (7) is installed between two adjacent permanent magnet installation blocks (6) and the groove in the permanent magnet (7) is matched with the protrusion in the permanent magnet installation block (6) for use.
4. The shaftless direct-drive full-power permanent magnet wind power generator according to claim 1, wherein: the novel motor shell is characterized in that a plurality of first mounting holes (18) are formed in the two ends of the motor shell (1), a plurality of second mounting holes (19) are formed in the front end cover (9) and the rear end cover (10), the second mounting holes (19) and the first mounting holes (18) are matched for use, and the front end cover (9) and the rear end cover (10) are mounted on the motor shell (1) through bolts and nuts.
5. The shaftless direct-drive full-power permanent magnet wind power generator according to claim 1, wherein: a plurality of air guide openings are formed between the fairing (13) and the cooling fan blades (17).
6. The shaftless direct-drive full-power permanent magnet wind power generator according to claim 1, wherein: and an installation step (20) is arranged in the cylindrical barrel (14), and the installation step (20) is sleeved on the outer wall of the rotor (5).
7. The shaftless direct-drive full-power permanent magnet wind power generator according to claim 1, wherein: the cylinder (14), the horn (15) and the outward turning ring (16) are integrally formed.
8. The shaftless direct-drive full-power permanent magnet wind power generator according to claim 1, wherein: the connection part of the outward turning circular ring (16) and the trumpet (15) is in smooth transition.
CN202210469598.3A 2022-04-28 2022-04-28 Shaftless direct-drive full-power permanent magnet wind driven generator Pending CN114865841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210469598.3A CN114865841A (en) 2022-04-28 2022-04-28 Shaftless direct-drive full-power permanent magnet wind driven generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210469598.3A CN114865841A (en) 2022-04-28 2022-04-28 Shaftless direct-drive full-power permanent magnet wind driven generator

Publications (1)

Publication Number Publication Date
CN114865841A true CN114865841A (en) 2022-08-05

Family

ID=82635790

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210469598.3A Pending CN114865841A (en) 2022-04-28 2022-04-28 Shaftless direct-drive full-power permanent magnet wind driven generator

Country Status (1)

Country Link
CN (1) CN114865841A (en)

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