CN115370538A

CN115370538A - Double-magnetic-circuit coreless double-blade wind driven generator

Info

Publication number: CN115370538A
Application number: CN202110531772.8A
Authority: CN
Inventors: 陆继荣; 陆遥
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2022-11-22

Abstract

The invention relates to a double-magnetic-circuit coreless double-blade wind driven generator which comprises a generator shell structure, a double-magnetic-circuit outer rotor permanent magnet structure, a coreless rotor winding structure, a first impeller speed-increasing structure, a second impeller speed-increasing structure and a tower drum connecting structure. Due to the adoption of the design of the double-magnetic-circuit outer rotor permanent magnet structure, the rotor winding structure without the iron core can cut magnetic lines of force in a saturation state of high-density magnetic flux. Because the design of the rotor winding in the iron-core-free winding is adopted, the iron-core-free winding can not generate eddy current resistance of a magnetic field, and the heating phenomenon of the inner rotor winding is avoided. Because the cogging resistance moment of the silicon steel sheet iron core is not existed, the rotary inertia of the rotor winding structure in the iron-free core is relatively increased. Due to the adoption of the wind power driving technology of the double-blade structure, the relative rotation speed of the wind driven generator is doubled compared with the generator of the existing wind power generation technology, and the power generation power of the wind driven generator is increased.

Description

Double-magnetic-circuit coreless double-blade wind driven generator

Technical Field

The invention relates to the technical field of wind power generation. In particular to a double-magnetic circuit coreless double-blade wind driven generator.

Background

The conventional wind power generator is mainly composed of: a stator winding structure and a rotor magnetic field structure constitute, stator winding structure fixed mounting is in the casing of generator, the casing is connected with the base and can not rotate, rotor magnetic field structure passes through two end cover bearings of generator housing, install in the centre of stator winding structure, form an air gap clearance with the stator winding structure, rotor magnetic field structure can be excitation also can be permanent-magnetic, when wind-force drive rotor permanent-magnet structure is rotatory, the stator winding structure just can cut the magnetic line of force in rotor rotating magnetic field, thereby produce generating current. Because the stator winding is wound in the tooth spaces of the silicon steel sheet iron core in sequence, a tooth space resisting moment for attracting the silicon steel sheet iron core by a magnetic field can be generated between the iron core structure of the stator winding structure and the rotor magnetic field structure, and the hysteresis resistance for attracting the tooth spaces by the magnetic field can generate an eddy current resistance phenomenon in the stator winding structure, so that the stator winding structure generates part of energy loss, and the output power of the wind driven generator is reduced. This is a conflicting and unexpected design specification for conventional wind turbines. However, since the coreless stator winding structure does not have the magnetic permeability of the silicon steel sheet core, the magnetic induction intensity of the stator winding structure induced rotor magnetic field is weakened, and to solve the problem of weakened magnetic induction intensity, the magnetic induction intensity of the stator magnetic field must be increased, and the purchase cost of the permanent magnet of the generator must be increased.

Disclosure of Invention

According to the working principle of the existing coreless permanent magnet generator, only one rotating magnetic field can be generated in an air gap between a coreless stator winding structure and a permanent magnet rotor structure, and the coreless stator winding can only cut the magnetic force line on the outer side surface of the permanent magnet rotor by utilizing the inner side surface of the coreless stator winding. The technical scheme of the invention is that a fixedly installed coreless stator winding structure is also rotated to serve as a rotating structure of the wind driven generator, the structure is defined as a coreless rotor winding structure, an independent annular structure of a permanent magnetic circuit is additionally arranged on the outer side surface of the coreless winding structure and is installed in parallel with the existing permanent magnetic rotor structure of the generator to form a double-magnetic-circuit mechanical structure, and the structure is defined as a double-magnetic-circuit outer rotor permanent magnetic structure. When the wind driven generator is driven by natural wind, the iron-core-free rotor winding structure and the double-magnetic-circuit permanent magnet outer rotor structure of the generator can rotate relatively at the same time, the rotating speed of the generator is increased, the iron-core-free rotor winding structure can cut magnetic lines of a double-magnetic-circuit outer rotor permanent magnet magnetic field at two sides of an iron-core-free winding coil, and the generating power of the wind driven generator is increased.

In order to achieve the above object, the present invention provides a dual magnetic circuit coreless dual-blade wind turbine generator based on the existing coreless generator, including: the structure comprises a generator shell structure, a double-magnetic-circuit outer rotor permanent magnet structure, a coreless rotor winding structure, a first impeller speed-increasing structure, a second impeller speed-increasing structure and a tower drum connecting structure.

The generator housing structure includes: the generator comprises a first main shaft, a first end cover bearing of a generator, a first end cover, a generator shell, a generator base, a second end cover and a second end cover bearing of the generator; the first end cover bearing of the generator is sleeved on the first main shaft, the first end cover is sleeved on the first end cover bearing of the generator, the first end cover is fixedly arranged at one end of the generator shell, the second end cover is fixedly arranged at the other end of the generator shell, the second end cover bearing of the generator is arranged in a bearing hole of the second end cover, the generator shell is fixedly arranged on the generator base and used as a basic structure of the double-magnetic-circuit outer rotor permanent magnet structure, and the rotor winding structure in the coreless core is adopted.

The double-magnetic-circuit outer rotor permanent magnet structure comprises: the outer rotor overlapping end cover, the outer rotor first bearing, the outer rotor first permanent magnet annular bearing piece, the first permanent magnet, the second permanent magnet, the outer rotor second permanent magnet annular bearing piece, the outer rotor end cover and the outer rotor second bearing; the outer rotor stacked end cover is sleeved on the outer rotor first bearing, the outer rotor stacked end cover is fixedly arranged on a first main shaft of the generator shell structure, one end of the outer rotor first permanent magnet annular bearing piece is fixedly arranged on an outer ring of the outer rotor stacked end cover, the first permanent magnet is arranged on the inner wall of the outer rotor first permanent magnet annular bearing piece, the second permanent magnet is arranged on the outer wall of the outer rotor second permanent magnet annular bearing piece, one end of the outer rotor second permanent magnet annular bearing piece is fixedly arranged on an inner ring of the outer rotor stacked end cover, the outer rotor end cover is fixedly arranged at the other end of the outer rotor first permanent magnet annular bearing piece, and the outer rotor second bearing is arranged on the outer rotor end cover; the first permanent magnet and the second permanent magnet form a double-magnetic-circuit outer rotor permanent magnet structure, the structure is provided with two independent permanent magnet fields, the inner side and the outer side of the iron-core-free rotor winding structure can be made to cut a rotating magnetic field of the double-magnetic-circuit outer rotor permanent magnet structure, and the power generation power of the wind driven generator is improved.

The ironless in-core rotor winding structure comprises: the generator comprises a coreless rotor winding, a coreless rotor winding fixing disc, a coreless rotor winding lead-out wire, an electric brush group, a conductive slip ring and a generator second main shaft with a groove; the generator second main shaft with the groove is arranged in shaft holes of the outer rotor first bearing and the outer rotor second bearing, the coreless rotor winding is arranged on the coreless rotor winding fixing disc which is sleeved on the generator second main shaft with the groove, the conductive slip ring is sleeved on the generator second main shaft with the groove, a lead is led out from the coreless rotor winding and passes through a reserved hole of the coreless rotor winding fixing disc to be connected to the conductive slip ring through the groove of the generator second main shaft with the groove, and the electric brush group is arranged on a second end cover of the generator; because the rotor winding in the iron-free core is arranged between the first permanent magnet and the second permanent magnet, the inner side and the outer side of the rotor winding in the iron-free core can cut the magnetic force lines of the first permanent magnet and the second permanent magnet at the same time, and the power generation power of the wind driven generator is increased.

The first impeller speed increasing structure includes: the first hub main shaft is connected with the first gearbox input shaft through a first impeller hub, a first hub main shaft and first gearbox input shaft connecting disc, a first gearbox input shaft, a first clockwise blade, a first gearbox output shaft and a first main shaft connecting disc; the first impeller hub is fixedly arranged on the first hub main shaft, the first hub main shaft is fixedly arranged on a connecting disc of the first hub main shaft and a first gearbox input shaft, the connecting disc of the first hub main shaft and the first gearbox input shaft is fixedly arranged on the first gearbox input shaft, the first gearbox adopts a conventional gear gearbox, the first gearbox is fixedly arranged on the cabin platform, the first gearbox output shaft and the first main shaft connecting disc are fixedly arranged on the first gearbox output shaft, the first gearbox output shaft and the first main shaft connecting disc are fixedly connected with the first main shaft, and the first clockwise blades are fixedly arranged on the first impeller hub.

Second impeller acceleration rate revolution mechanic includes: a connecting disc of a second main shaft and a second gearbox output shaft with grooves, a second gearbox output shaft, a second gearbox, a second counterclockwise needle blade, a second gearbox input shaft, a connecting disc of a second hub main shaft and a second gearbox input shaft, a second hub main shaft and a second impeller hub; the second main shaft with the groove and a connecting disc of an output shaft of a second gearbox are fixedly arranged on an output shaft of the second gearbox, the second gearbox adopts a conventional gear gearbox, the technical scheme does not provide specific design requirements for the gearbox, the second gearbox is fixedly arranged on an engine room platform, the connecting disc of the second hub main shaft and an input shaft of the second gearbox is fixedly arranged on the input shaft of the second gearbox, the second hub main shaft is fixedly arranged on the connecting disc of the second hub main shaft and the input shaft of the second gearbox, the second impeller hub is fixedly arranged on the second hub main shaft, and the second counter-clockwise blades are fixedly arranged on the second impeller hub.

The tower section of thick bamboo connection structure includes: the system comprises a cabin, a cabin platform, a yaw rotating platform, a yaw gear, a rotating platform base, a tower and a wind vane; the revolving stage base is fixedly arranged on the tower barrel, the yaw gear is arranged on the revolving stage base, the yaw revolving stage is in rolling connection with the revolving stage base, the cabin platform is fixedly arranged on the yaw revolving stage and bears the double magnetic circuits, the iron-core-free structure, the double-blade wind driven generator, the first gearbox and the second gearbox, the cabin is fixedly arranged on the cabin platform, and the wind vane is fixedly arranged on the cabin.

The technical scheme of the invention has the following advantages that 1, due to the adoption of the design of the double-magnetic-circuit outer rotor permanent magnet structure, the rotor winding structure without the iron core can cut magnetic lines of force in a saturation state of high-density magnetic flux, and the power generation power of the generator is increased. 2. Because the rotor winding in the iron-free core does not have the structure of the silicon steel sheet iron core, the eddy current resistance of a magnetic field can not be generated, and the heating phenomenon of the inner rotor winding is avoided. 3. Due to the adoption of the wind power driving technology of a double-blade structure, the relative rotating speed of the wind power generator is doubled compared with the generator of the existing wind power generation technology, and the wind speed is calculated according to a wind power generation theoretical calculation formula: p =1/2 ρ AV ³ P is the generated power, ρ is a constant determined by the altitude, ρ = D η, where D is the air density and decreases with increasing altitude, η is a coefficient, a is the swept area, i.e., a =1/2 pi R ² (pi =3.14, r is the radius, i.e. the blade length) and V is the wind speed. Under the condition of a certain altitude and unchanged wind sweeping area of the fan blade, the power generation power depends on the wind speed of the wind driven generator to the power of 3,for example, a power of 2 to 3 equals 8, a power of 4 to 3 equals 64. Therefore, the double-magnetic-circuit iron-core-free double-blade wind driven generator has the advantage that the power generation power is increased by 8 times compared with that of the existing wind driven generator. 4. Because the generated power of the wind driven generator is increased by 8 times compared with the generated power of the existing wind driven generator, the size of the area of the generator blade can be completely reduced when the generated power of the wind driven generator is matched, and further, the manufacturing cost of the tower barrel and other basic facilities is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

The attached figure 1 is: the double-magnetic-circuit coreless double-blade wind driven generator is a schematic general diagram of a side-view section structure;

identification of figure 1: 11. first main shaft, 12, generator first end cover bearing, 13, first end cover, 14, generator housing, 15, generator base, 16, second end cover, 17, generator second end cover bearing, 21, outer rotor stacked end cover, 22, outer rotor first bearing, 23, outer rotor first permanent magnet annular bearing, 24, first permanent magnet, 25, second permanent magnet, 26, outer rotor second permanent magnet annular bearing, 27, outer rotor end cover, 28, outer rotor second bearing, 31, ironless inner rotor winding, 32, ironless rotor winding fixed disk, 33, ironless inner rotor winding outgoing wire, 34, brush outgoing wire, 35, brush group, 36, conductive slip ring, 37, grooved second main shaft, 41, first impeller hub, 42, first hub main shaft, 43, first hub main shaft and first gearbox input shaft connection pad, 44, first gearbox input shaft, 45, first clockwise needle blade, 46, first gearbox, 47, first gearbox output shaft, 48, first gearbox connection pad and first gearbox output shaft, second gearbox input shaft connection pad, 62, second gearbox connection pad, second gearbox input shaft connection pad, 52, second output shaft, second yaw gearbox, second output shaft connection pad, 62, second rotor shaft connection pad, 26, second yaw gearbox input shaft connection pad, 26, and second output shaft connection pad, 52, 26, yaw gearbox, 6, and second output shaft connection pad, 26.

FIG. 2 is a schematic representation of: the double-magnetic-circuit coreless double-blade wind driven generator is schematically shown in the drawing by an outer rotor stacked end cover;

identification of FIG. 2: 11. the first main shaft 21 and the outer rotor stacked end cover.

FIG. 3 is a schematic representation of: the cross section of the permanent magnet structure of the double-magnetic-circuit coreless double-blade wind driven generator and the double-magnetic-circuit outer rotor is schematic;

identification of FIG. 3: 14. the generator comprises a generator shell 23, an outer rotor first permanent magnet annular bearing piece 24, a first permanent magnet 22, an outer rotor first bearing 25, a second permanent magnet 26, an outer rotor second permanent magnet annular bearing piece 15 and a generator base.

FIG. 4 is a schematic representation of: the cross section of the structure of a rotor winding in the coreless is schematic;

identification of figure 4: 14. the generator comprises a generator shell, 32, an inner rotor coreless winding installation disc, 31, an inner rotor coreless winding, 37, a second main shaft with a groove, 71, a coreless winding lead-out wire preformed hole, 15 and a generator base.

FIG. 5 is a schematic representation of: the double-magnetic-circuit coreless double-blade wind driven generator is characterized in that a double-magnetic-circuit outer rotor permanent magnet structure and a coreless rotor winding structure are combined into a cross section schematic diagram;

identification of figure 5: 14. the generator comprises a generator shell 23, an outer rotor first permanent magnet annular bearing piece 24, a first permanent magnet 31, an inner rotor coreless winding 25, a second permanent magnet 26, an outer rotor second permanent magnet annular bearing piece 37, a second main shaft with a groove 71, a coreless winding lead-out wire preformed hole 32, an inner rotor coreless winding mounting disc 15 and a generator base.

FIG. 6 is a schematic representation of: the double-magnetic-circuit coreless double-blade wind driven generator is a schematic diagram of simulation effect;

the designations of FIG. 6 are: 41. a first impeller hub, 45, a first clockwise blade, 67, a wind vane, 54, a second counterclockwise blade, 61, a generator nacelle, 66, a tower.

Detailed Description

The double-magnetic-circuit coreless double-blade wind driven generator will be described in detail with reference to the accompanying drawings in the embodiments of the present invention. It should be understood that the specific embodiments described are merely illustrative of some, and not all, embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Since several structural components of the dual-magnetic-circuit coreless dual-blade wind driven generator have mutually crossed installation relations, a generator housing structure is taken as a starting point of the embodiment, and a clear and complete detailed description is carried out.

As shown in fig. 1, the dual-magnetic-circuit coreless dual-blade wind turbine of the present invention includes a generator housing structure, which includes: the generator comprises a first main shaft 11, a generator end cover first bearing 12, a generator first end cover 13, a generator shell 14, a generator base 15, a second end cover 16 and a generator second end cover bearing 17; sleeving a first bearing 12 of a generator end cover on a first main shaft 11, sleeving a first end cover 13 of a generator on the first bearing 12 of the generator end cover, fixedly mounting the first end cover 13 of the generator on a generator shell 14, and fixedly mounting the generator shell 14 on a generator base 15; and temporarily placing the second end cover 16 of the generator and the second end cover bearing 17 of the generator, waiting for the double-magnetic-circuit outer rotor permanent magnet structure, and then carrying out the next step of installation after the double-magnetic-circuit outer rotor permanent magnet structure is installed in place.

As shown in fig. 1, 2 and 3, the double-magnetic-circuit outer rotor permanent magnet structure includes: the outer rotor overlapping type end cover 21, the outer rotor first bearing 22, the outer rotor first permanent magnet annular bearing piece 23, the first permanent magnet 24, the second permanent magnet 25, the outer rotor second permanent magnet annular bearing piece 26, the outer rotor circular end cover 27 and the outer rotor second bearing 28; the outer rotor overlapping type end cover 21 is sleeved on the outer rotor first bearing 22, the outer rotor overlapping type end cover 21 is fixedly arranged on the first main shaft 11 of the generator housing structure, the plurality of first permanent magnets 24 are arranged on the inner wall of the outer rotor first permanent magnet annular bearing piece 23 according to the arrangement sequence of the N poles and the S poles, one end of the outer rotor first permanent magnet annular bearing piece 23 is fixedly arranged on the outer edge of the overlapping type end cover 21, the plurality of second permanent magnets 25 are arranged on the outer wall of the outer rotor second permanent magnet annular bearing piece 26 according to the arrangement sequence of the N poles and the S poles, and one end of the outer rotor second permanent magnet annular bearing piece 26 is fixedly arranged on the inner edge of the overlapping type end cover 21 and forms an outer rotor permanent magnet structure with the outer rotor first permanent magnet annular bearing piece 23 to form a double magnetic circuit; the outer rotor circular end cap 27 and the outer rotor second bearing 28 are temporarily placed to wait for the coreless rotor winding structure to be installed in place, and then the next step of installation is performed.

As shown in fig. 1, 4, and 5, the coreless rotor winding structure includes: the motor comprises a coreless rotor winding 31, a coreless rotor winding fixing disc 32, a coreless rotor winding lead-out wire 33, a brush lead-out wire 34, a brush group 35, a conductive slip ring 36 and a second main shaft 37 with a groove; a plurality of winding coils are plastically packaged into an annular rotor winding 31 without an iron core by adopting a high polymer insulating material through a precision injection molding technology, the rotor winding 31 without the iron core is fixedly arranged on a rotor winding fixing disc 32 without the iron core, a second main shaft 37 with a groove is fixedly arranged in a bearing hole of a first bearing 23 of an outer rotor, the rotor winding fixing disc 32 without the iron core is sleeved on the second main shaft 37 with the groove, so that the rotor winding 31 without the iron core is arranged between a first permanent magnet 25 and a second permanent magnet 26, the rotor winding 31 without the iron core can simultaneously cut the magnetic lines of force of the first permanent magnet 25 and the second permanent magnet 26, further, the second bearing 28 is sleeved on the second main shaft 37 with the groove, and the outer rotor is provided with a circular end cover 27, the outer ring of the outer rotor circular end cover 27 is fixedly arranged on the outer rotor first permanent magnet annular bearing piece 23, furthermore, the generator second end cover bearing 17 is sleeved on the second main shaft 37 with the groove, the generator second end cover 16 is sleeved on the generator second end cover bearing 17, the outer ring of the generator second end cover 16 is fixedly arranged on the generator shell 14, the conductive slip ring 36 is sleeved on the second main shaft 37 with the groove, the inner rotor coreless winding is led out of the lead 33, the electric brush group 35 is fixedly arranged on the generator second end cover 16 through the preformed hole of the inner rotor coreless winding mounting disc 71 and is connected with the conductive slip ring 36 through the second main shaft 37 with the groove, and the electric brush group 34 is led out of the lead 34 and is connected on the electric brush group 35; the installation process completes the whole structure of the double-magnetic-circuit, iron-core-free and double-blade wind driven generator.

As shown in fig. 1, the first impeller speed increasing structure includes: a first impeller hub 41, a first hub main shaft 42, a first hub main shaft and first gearbox input shaft connecting disc 43, a first gearbox input shaft 44, a first clockwise needle blade 45, a first gearbox 46, a first gearbox output shaft 47, a first gearbox output shaft and first main shaft connecting disc 48; the first impeller hub 41 is fixedly arranged on a first hub main shaft 42, the first hub main shaft 42 is fixedly arranged on a connecting disc 43 of the first hub main shaft and a gearbox, the connecting disc 43 of the first hub main shaft and the gearbox is fixedly arranged on a first gearbox input shaft 44, a first clockwise blade 45 is fixedly arranged on the first impeller hub 41, a first gearbox 46 is fixedly arranged on a cabin platform 62, and a first gearbox output shaft and a first main shaft connecting disc 48 are fixedly arranged on a first gearbox output shaft 47.

As shown in fig. 1, the second impeller speed increasing structure includes: a connecting disc 51 of a second main shaft and a second gearbox output shaft with grooves, a second gearbox output shaft 52, a second gearbox 53, a second counterclockwise blade 54, a second gearbox input shaft 55, a connecting disc 56 of a second hub main shaft and a second gearbox input shaft, a second hub main shaft 57 and a second blade hub 58; a connecting disc 51 of a second main shaft with a groove and a second gearbox output shaft is fixedly arranged on a second gearbox output shaft 52, a second gearbox 53 is fixedly arranged on a cabin platform 62, a connecting disc 56 of a second hub main shaft and a second gearbox input shaft is fixedly arranged on a second gearbox input shaft 55, a second hub main shaft 57 is fixedly arranged on the connecting disc 56 of the second hub main shaft and the second gearbox input shaft, a second vane wheel hub 58 is fixedly arranged on the second hub main shaft 57, and a second counter-clockwise blade 54 is fixedly arranged on the second vane wheel hub 58.

As shown in fig. 1 and 6, the tower connecting structure includes: a generator nacelle 61, a nacelle platform 62, a yaw rotation platform 63, a yaw gear 64, a rotation platform base 65, a tower 66, and a wind vane 67; the rotary table base 65 is fixedly arranged on a tower tube 66, the yaw gear 64 is arranged on the rotary table base 65, the yaw rotary table 63 is in rolling connection with the rotary table base 65, the cabin platform 62 is fixedly arranged on the yaw rotary table 63, the double-magnetic-circuit, iron-core-free and double-blade wind driven generator assembly is fixedly arranged on the cabin platform 62, the generator cabin 61 is fixedly arranged on the cabin platform 62, and the wind vane 67 is fixedly arranged on the cabin 61.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. Double-magnetic-circuit coreless double-blade wind driven generator is characterized by comprising: the structure comprises a generator shell structure, a double-magnetic-circuit outer rotor permanent magnet structure, a coreless rotor winding structure, a first impeller speed-increasing structure, a second impeller speed-increasing structure and a conventional tower drum connecting structure; the generator housing structure further includes: the generator comprises a first main shaft (11), a generator first end cover bearing (12), a first end cover (13), a generator shell (14), a generator base (15), a generator second end cover (16) and a generator second end cover bearing (17); the first end cover bearing (12) of the generator is sleeved on the first main shaft (11), the first end cover (13) is sleeved on the first end cover bearing (12) of the generator, the first end cover (13) is fixedly arranged at one end of the generator shell (14), the second end cover (16) is fixedly arranged at the other end of the generator shell (14), the second end cover bearing (17) of the generator is arranged in a bearing hole of the second end cover (16), and the generator shell (14) is fixedly arranged on the generator base (15).

2. The dual-magnetic-circuit coreless dual-blade wind-driven generator according to claim 1, comprising a dual-magnetic-circuit outer rotor permanent magnet structure, further comprising: the outer rotor overlapping type end cover (21), an outer rotor first bearing (22), an outer rotor first permanent magnet annular bearing piece (23), a first permanent magnet (24), a second permanent magnet (25), an outer rotor second permanent magnet annular bearing piece (26), an outer rotor end cover (27) and an outer rotor second bearing (28); the outer rotor stacked end cover (21) is sleeved on the outer rotor first bearing (22), the outer rotor stacked end cover (21) is fixedly mounted on a first main shaft (11) of the generator housing structure, one end of the outer rotor first permanent magnet annular bearing piece (23) is fixedly mounted on an outer ring of the outer rotor stacked end cover (21), the first permanent magnet (24) is arranged on the inner wall of the outer rotor first permanent magnet annular bearing piece (23), the second permanent magnet (25) is arranged on the outer wall of the outer rotor second permanent magnet annular bearing piece (26), one end of the outer rotor second permanent magnet annular bearing piece (26) is fixedly mounted on an inner ring of the outer rotor stacked end cover (21), the outer rotor end cover (27) is fixedly mounted at the other end of the outer rotor first permanent magnet annular bearing piece (23), and the outer rotor second bearing (28) is arranged on the outer rotor end cover (27).

3. The dual magnetic circuit ironless dual-bladed wind turbine of claim 2, comprising an ironless rotor winding structure, further comprising: the device comprises a coreless rotor winding (31), a coreless rotor winding mounting disc (32), a coreless rotor winding lead-out wire (33), a brush lead-out wire (34), a brush group (35), a conductive slip ring (36) and a generator second main shaft (37) with a groove; the generator second main shaft (37) with the groove is arranged in shaft holes of the outer rotor first bearing (22) and the outer rotor second bearing (28), the coreless rotor winding (31) is arranged on the coreless rotor winding mounting disc (32), the coreless rotor winding mounting disc (32) is sleeved on the generator second main shaft (37) with the groove, the conductive slip ring (36) is sleeved on the generator second main shaft (37) with the groove, a lead (33) of the coreless rotor winding is led out, penetrates through a reserved hole (71) of the coreless rotor winding mounting disc and is connected to the conductive slip ring (36) through the groove of the generator second main shaft (37) with the groove, and the electric brush group (35) is arranged on the generator second end cover (16).

4. The dual magnetic circuit coreless dual-blade wind power generator according to claim 1, comprising a first impeller speed increasing structure, the first impeller speed increasing structure further comprising: the device comprises a first impeller hub (41), a first hub main shaft (42), a first hub main shaft and first gearbox input shaft connecting disc (43), a first gearbox input shaft (44), a first clockwise blade (45), a first gearbox (46), a first gearbox output shaft (47), a first gearbox output shaft and first main shaft connecting disc (48); the first impeller hub (41) is fixedly arranged on the first hub main shaft (42), the first hub main shaft (42) is fixedly arranged on a connecting disc (43) of the first hub main shaft and a first gearbox input shaft, the connecting disc (43) of the first hub main shaft and the first gearbox input shaft is fixedly arranged on a first gearbox input shaft (44), the first clockwise blades (45) are fixedly arranged on the first impeller hub (41), the first gearbox (46) is fixedly arranged on the cabin platform (62), and the connecting disc (48) of the first gearbox output shaft and the first main shaft is fixedly arranged on the first gearbox output shaft (47).

5. The dual magnetic circuit coreless dual-blade wind power generator according to claim 1, comprising a second impeller speed increasing structure, the second impeller speed increasing structure further comprising: a connecting disc (51) for a second main shaft and a second gearbox output shaft with grooves, a second gearbox output shaft (52), a second gearbox (53), a second counterclockwise needle blade (54), a second gearbox input shaft (55), a connecting disc (56) for a second hub main shaft and a second gearbox input shaft, a second hub main shaft (57) and a second impeller hub (58); the grooved second main shaft and second gearbox output shaft connecting disc (51) is fixedly arranged on the second gearbox output shaft (52), the second gearbox (53) is fixedly arranged on a cabin platform 62, the second hub main shaft and second gearbox input shaft connecting disc (56) is fixedly arranged on the second gearbox input shaft (55), the second hub main shaft (57) is fixedly arranged on the second hub main shaft and gearbox connecting disc (56), the second impeller hub (58) is fixedly arranged on the second hub main shaft (57), and the second counterclockwise needle blade (54) is fixedly arranged on the second impeller hub (58).

6. The dual magnetic circuit coreless dual-blade wind turbine according to claim 1, comprising a tower connection structure, the tower connection structure further including: the wind power generation system comprises a nacelle (61), a nacelle platform (62), a yaw rotating platform (63), a yaw gear (64), a rotating platform base (65), a tower (66) and a wind vane (67); the rotating platform base (65) is fixedly arranged on the tower barrel (66), the yawing gear (64) is arranged on the rotating platform base (65), the cabin platform (62) is fixedly arranged on the yawing rotating platform (63), the cabin (61) is fixedly arranged on the cabin platform (62), and the wind vane (67) is fixedly arranged on the cabin (61).