CN211924379U

CN211924379U - Vertical coreless permanent magnet wind driven generator

Info

Publication number: CN211924379U
Application number: CN202020245079.5U
Authority: CN
Inventors: 麻焕锋; 孙伟超; 赵纲领; 马艳彬; 董若颖; 王杰; 葛宏叶; 邢忻雨
Original assignee: Shangqiu Normal University
Current assignee: Shangqiu Normal University
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-11-13
Anticipated expiration: 2030-03-03

Abstract

The utility model relates to a vertical no iron core permanent magnet wind power generator, which comprises a stator, the rotor, a housing, pivot and a plurality of blade, be provided with the rotor between pivot and a plurality of blade, the rotor corresponds and sets up in the pivot both ends, the blade passes through the rotor and rotates with the pivot to be connected, the bottom of pivot is rotated and is connected the casing, casing and rotor fixed connection, the inside rotor that is provided with of casing, the rotor includes yoke and a plurality of permanent magnet, the yoke includes yoke and lower yoke, set up the stator between yoke and the lower yoke, the stator is the winding dish, the winding dish is the ring shape structure, the winding dish is embedded to have the winding, winding dish and pivot fixed connection. The utility model discloses an optimize motor self structure, make each partial mutually independent be convenient for production, installation and maintenance.

Description

Vertical coreless permanent magnet wind driven generator

Technical Field

The utility model relates to the technical field of electric machines, especially, relate to a vertical coreless permanent magnet wind power generator.

Background

The existing wind driven generators are divided into large-scale wind driven generators and small-scale wind driven generators, wherein the large-scale wind driven generators need to be arranged in an open area with a certain height and good wind power resources, the wind driven generators are large in unit size, the requirement on the wind speed of equipment is high, and power is mainly supplied for urban life; the small wind driven generator is generally small in size and is mainly arranged at a road and a park scenic spot to supply power for a road illuminating lamp, a traffic signal lamp and a landscape lamp.

The manufacturing cost of the small wind driven generator is far lower than that of solar power generation equipment, the power supply effect of the small wind driven generator is better than that of the solar power generation equipment, and the small wind driven generator has the problems of complex structure and inconvenient maintenance, so that the popularization degree of the small wind driven generator is low;

for example, patent document 201811197444.3 entitled "a double-repulsion dynamic generator" discloses a small wind-driven generator, which has a complicated structure, is inconvenient to maintain when a fault occurs, is difficult to keep balanced rotation when the generator is operated, and has low power generation efficiency.

Disclosure of Invention

The utility model discloses a solve current aerogenerator because the structure is complicated leads to the inconvenient problem of maintenance, provide a vertical no iron core permanent magnet aerogenerator, through optimizing motor self structure, make each part mutually independent be convenient for production, installation and maintenance.

In order to achieve the above object, the utility model adopts the following technical scheme:

a vertical permanent magnet wind driven generator without an iron core comprises a stator, a rotor, a casing, a rotating shaft and a plurality of blades, wherein a rotor is arranged between the rotating shaft and the blades and comprises a fixing ring and a plurality of supporting strips, the fixing ring is of an annular structure and is detachably connected with the supporting strips, the supporting strips are of a C-shaped structure, the supporting strips are arranged along the outer annular surface of the fixing ring at equal intervals, the supporting strips are tangent to the outer annular surface of the fixing ring, one end of each supporting strip is in arc transition with the fixing ring, the other end of each supporting strip is detachably connected with the blades, the rotor is correspondingly arranged at two ends of the rotating shaft, the blades are rotatably connected with the rotating shaft through the rotor, the bottom end of the rotating shaft is rotatably connected with the casing, the casing is fixedly connected with the rotor, the rotor is arranged inside the casing and comprises a yoke and a, the stator is a winding disc, the winding disc is of a circular ring-shaped structure, a winding is embedded in the winding disc, and the winding disc is fixedly connected with the rotating shaft.

Further, the pivot includes connecting axle and motor shaft, connecting axle and motor shaft are the ring form cylindricality structure, and the connecting axle cover is established in the motor shaft outside and motor shaft fixed connection.

Further, the bearing position has been seted up to solid fixed ring's interior anchor ring, and the rotor sets up respectively in connecting axle and motor shaft upper end, is provided with first bearing between rotor and the connecting axle, is provided with the second bearing between rotor and the motor shaft.

Further, the casing includes upper end cover and lower end cover, the upper end cover is for being provided with the cylindrical of shoulder hole, and circular through-hole has been seted up to the up end of upper end cover, the lower end cover is for being provided with the shoulder cylindrical of shoulder hole, upper end cover and lower end cover can dismantle the connection.

Furthermore, the upper magnetic yoke and the lower magnetic yoke are both in a stepped cylindrical shape, the upper magnetic yoke and the lower magnetic yoke are respectively fixedly connected with the upper end cover and the lower end cover through bolts, the small-diameter ends of the upper magnetic yoke and the lower magnetic yoke are arranged in opposite directions, a plurality of permanent magnets are fixedly arranged on one side of the large-diameter end along the circumference of the large-diameter end at equal intervals, the permanent magnets are alternately arranged, and the permanent magnets opposite to the upper magnetic yoke and the lower magnetic yoke are identical in magnetism.

Furthermore, a shaft sleeve is arranged on the inner ring surface of the winding disc, the shaft sleeve is of an annular structure, the shaft sleeve and the motor shaft are detachably connected through a connecting key, the windings are arranged in a single-layer chain type crossed mode, a live wire and a zero line are led out of the windings of the winding disc, a wire outlet groove is formed in the side surface of the shaft sleeve, and a wire outlet hole is formed in the position, corresponding to the motor shaft, of the wire outlet groove

Furthermore, the winding disc and the shaft sleeve are of an integrated structure, the winding disc and the shaft sleeve are both formed by pouring epoxy resin materials, and the epoxy resin materials cover the surface of the winding to form an insulating layer.

Further, a gap is formed between the rotor and the stator, and the range of the gap is 0.07-0.04 mm.

Further, the motor shaft passes rotor, upper end cover, upper yoke, winding dish, lower yoke and bottom end cover in proper order, the bottom surface of bottom end cover is provided with the bearing position, be provided with the third bearing between bottom end cover and the motor shaft, the bottom end cover passes through the third bearing with the motor shaft and rotates and be connected.

Through the technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses be provided with the rotor, the rotor corresponds and sets up in the pivot both ends, and the blade passes through the rotor to be connected with the pivot rotation, and the bottom of pivot is rotated and is connected the casing, casing and rotor fixed connection, the inside rotor that is provided with of casing, the rotor includes yoke and a plurality of permanent magnet, the yoke includes yoke and lower yoke, sets up the stator between yoke and the lower yoke, the stator is the winding dish, the winding dish is ring annular structure, and the winding dish is embedded to have the winding, winding dish and pivot fixed connection. When the wind power generator works, wind power acts on the surface of the blade to push the rotor wing, the shell and the rotor to rotate, meanwhile, the rotating shaft and the stator are in a fixed state, and the stator cuts magnetic lines of force to generate electric energy. The blades, the rotor wings, the machine shell, the rotor and the stator are simply connected, all parts are mutually independent and can be directly replaced, and the maintenance cost is reduced.

2. The rotor includes solid fixed ring and a plurality of support bar, gu fixed ring is the ring annular structure, gu fixed ring can dismantle with a plurality of support bars and be connected, the support bar is C style of calligraphy structure, and is a plurality of the support bar sets up along solid fixed ring outer anchor ring equidistance, and the support bar is tangent with solid fixed ring outer anchor ring, and support bar one end can be dismantled with solid fixed ring circular arc transition, the other end and blade and be connected, and the rotor corresponds and sets up in the pivot both ends, casing and rotor. Each part of the rotor can be dismantled and connected and be convenient for maintenance and replacement, and its structure can strengthen the pushing action of wind-force for the plane heliciform after a plurality of support bars make up, and the rotor corresponds to set up in the pivot both ends and fixes the blade simultaneously, avoids the blade to appear rocking under the wind-force effect, influences the work efficiency of generator.

Drawings

Fig. 1 is a schematic view of the overall structure of a vertical coreless permanent magnet wind turbine of the present invention.

Fig. 2 is a schematic view of the vertical coreless permanent magnet wind turbine of the present invention.

Fig. 3 is a partial sectional view of a vertical coreless permanent magnet wind turbine of the present invention.

Fig. 4 is a schematic view of the upper end split of the vertical coreless permanent magnet wind turbine of the present invention.

The reference numbers in the drawings are as follows: 1 is the blade, 2 is the upper yoke, 3 is the lower yoke, 4 is the winding dish, 5 is the connecting axle, 6 is the motor shaft, 7 is the rotor, 8 is the casing, 9 is the card ear.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:

as shown in fig. 1 to 4, a vertical coreless permanent magnet wind turbine includes a stator, a rotor, a casing 8, a rotating shaft and a plurality of blades 1, wherein a rotor 7 is disposed between the rotating shaft and the plurality of blades 1, the rotor 7 includes a fixing ring and a plurality of support bars, the fixing ring is of a ring structure, the fixing ring is detachably connected with the plurality of support bars, the support bars are of a C-shaped structure, the plurality of support bars are equidistantly disposed along an outer annular surface of the fixing ring, the support bars are tangent to the outer annular surface of the fixing ring, one end of each support bar is in arc transition with the fixing ring, the other end of each support bar is detachably connected with the corresponding blade 1, the rotor 7 is correspondingly disposed at two ends of the rotating shaft, the blades 1 are rotatably connected with the rotating shaft through the rotor 7, the casing 8 is rotatably connected with the bottom end of the rotating shaft, the magnetic yoke includes upper magnetic yoke 2 and lower magnetic yoke 3, sets up the stator between upper magnetic yoke 2 and the lower magnetic yoke 3, the stator is winding dish 4, winding dish 4 is the ring form structure, and winding dish 4 is embedded to have the winding, winding dish 4 and pivot fixed connection.

For optimizing product structure, the pivot includes connecting axle 5 and motor shaft 6, connecting axle 5 and motor shaft 6 are the ring form cylindricality structure, and 5 covers of connecting axle are established and are passed through bolted connection with motor shaft 6 outside motor shaft 6.

For optimizing product structure, the bearing position has been seted up to solid fixed ring's interior anchor ring, and rotor 7 sets up respectively in connecting axle 5 and 6 upper ends of motor shaft, is provided with first bearing between rotor 7 and the connecting axle 5, is provided with the second bearing between rotor 7 and the motor shaft 6.

For protecting stator and rotor, casing 8 includes upper end cover and lower end cover, the upper end cover is for being provided with the cylindrical of shoulder hole, and circular through-hole has been seted up to the up end of upper end cover, the lower end cover is for being provided with the shoulder cylindrical of shoulder hole, upper end cover and lower end cover pass through the bolt and can dismantle the connection.

In order to enable the generator to operate, the upper magnetic yoke 2 and the lower magnetic yoke 3 are both in a stepped cylindrical shape, the upper magnetic yoke 2 and the lower magnetic yoke 3 are respectively fixedly connected with the upper end cover and the lower end cover through bolts, the small-diameter ends of the upper magnetic yoke 2 and the lower magnetic yoke 3 are arranged in the opposite direction, a plurality of permanent magnets are fixedly arranged on one side of the large-diameter end along the circumference of the large-diameter end in an equidistant mode, the permanent magnets are alternately arranged in a magnetic mode, and the permanent magnets of the upper magnetic yoke 2 and the lower magnetic yoke 3 are opposite.

In order to optimize the product structure, a shaft sleeve is arranged on the inner ring surface of the winding disc 4 and is of an annular structure, the shaft sleeve and the motor shaft 6 are detachably connected through a connecting key, the windings are arranged in a single-layer chain type crossed manner, a live wire and a zero line are led out of the windings of the winding disc 4, a wire outlet groove is formed in the side surface of the shaft sleeve, and a wire outlet hole is formed in the position, corresponding to the motor shaft 6, of the wire outlet groove

In order to improve the insulating property, the winding disc 4 and the shaft sleeve are of an integrated structure, the winding disc 4 and the shaft sleeve are poured by epoxy resin materials, and the epoxy resin materials cover the surface of the winding to form an insulating layer.

In order to ensure the heat dissipation performance of the generator, a gap is arranged between the rotor and the stator, and the range of the gap is 0.07-0.04 mm.

In order to optimize the product structure and improve the wind power effect, the motor shaft 6 sequentially penetrates through the rotor 7, the upper end cover, the upper magnetic yoke 2, the winding disc 4, the lower magnetic yoke 3 and the lower end cover, a bearing position is arranged on the bottom surface of the lower end cover, a third bearing is arranged between the lower end cover and the motor shaft 6, and the lower end cover is rotatably connected with the motor shaft 6 through the third bearing.

When the motor is installed, the lower end cover is connected with the motor shaft 6 through a third bearing, the third bearing is fixed in a bearing position, then the lower magnetic yoke 3 fixed with the permanent magnet is fixedly connected with the lower end cover through a bolt, the upper end cover and the upper magnetic yoke 2 are fixed in the same method, the winding disc 4 and the shaft sleeve are combined with the motor shaft 6 according to the position of a wire outlet hole and are fixed through a connecting key, then the upper end cover and the lower end cover are fixed through the bolt, and it needs to be noted that the magnetism of the corresponding permanent magnets on the upper magnetic yoke 2 and the lower magnetic yoke 3 needs to be kept consistent; the fixing ring and the support frame are fixed through bolts, a bearing position is arranged on the inner ring surface of the fixing ring, the rotor 7 is rotatably connected with the motor shaft 6 through a second bearing, the rotor 7 is fixed with the upper end cover through bolts, and a rubber pad is arranged between the rotor 7 and the upper end cover and used for rain-proof sealing; the connecting shaft 5 and the motor shaft 6 are sleeved and fixed through a jackscrew, the rotor 7 is connected with the connecting shaft 5 through a first bearing, and the installation of the generator main body is completed;

install blade 1 at last, in this implementation blade 1 is the elongated structure that the aluminum alloy material made, and the aluminum alloy has plasticity to be crooked according to support bar shape and radian with the aluminum alloy, is provided with the card ear 9 that is used for 1 location of blade on the solid fixed ring, card ear 9 is semi-circular, and the quantity of card ear 9 keeps unanimous with the quantity of blade 1 and support bar, and blade 1 passes through the bolt fastening with the support bar, and the generator installation is accomplished.

When the maintenance is carried out, the parts are replaced through the steps, and due to the fact that the structure is simple, the parts of all the parts are independent of one another and convenient to maintain.

Under windy condition, wind power promotes blade 1 and makes rotor 7 drive casing 8 and rotor rotate, and stator and pivot remain static when the rotor rotates, and the stator cuts the magnetic line of force and produces the electric energy, supplies power for consumer such as road traffic signal lamp, light and scenic spot landscape lamp.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims

1. A vertical permanent magnet wind driven generator without an iron core comprises a stator, a rotor, a casing (8), a rotating shaft and a plurality of blades (1), and is characterized in that a rotor (7) is arranged between the rotating shaft and the blades (1), the rotor (7) comprises a fixing ring and a plurality of supporting bars, the fixing ring is of a circular ring structure, the fixing ring is detachably connected with the supporting bars, the supporting bars are of a C-shaped structure, the supporting bars are arranged along the outer annular surface of the fixing ring at equal intervals, the supporting bars are tangent to the outer annular surface of the fixing ring, one end of each supporting bar is in circular arc transition with the fixing ring, the other end of each supporting bar is detachably connected with the corresponding blade (1), the rotors (7) are correspondingly arranged at two ends of the rotating shaft, the blades (1) are rotatably connected with the rotating shaft through the rotors (7), the bottom end of the, casing (8) inside is provided with the rotor, the rotor includes yoke and a plurality of permanent magnet, the yoke includes upper yoke (2) and lower yoke (3), sets up the stator between upper yoke (2) and lower yoke (3), the stator is winding dish (4), winding dish (4) are ring annular structure, and winding dish (4) are embedded to have the winding, winding dish (4) and pivot fixed connection.

2. The vertical coreless permanent magnet wind turbine generator according to claim 1, wherein the rotating shaft includes a connecting shaft (5) and a motor shaft (6), the connecting shaft (5) and the motor shaft (6) are both of circular cylindrical structures, and the connecting shaft (5) is sleeved outside the motor shaft (6) and is fixedly connected with the motor shaft (6).

3. The vertical coreless permanent magnet wind turbine generator according to claim 2, wherein a bearing position is provided on an inner annular surface of the fixing ring, the rotor (7) is respectively provided at upper ends of the connecting shaft (5) and the motor shaft (6), a first bearing is provided between the rotor (7) and the connecting shaft (5), and a second bearing is provided between the rotor (7) and the motor shaft (6).

4. The vertical coreless permanent magnet wind turbine according to claim 3, wherein the casing (8) includes an upper end cap and a lower end cap, the upper end cap is cylindrical with a stepped hole, a circular through hole is formed in an upper end face of the upper end cap, the lower end cap is cylindrical with a stepped hole, and the upper end cap and the lower end cap are detachably connected.

5. The vertical coreless permanent magnet wind generator according to claim 4, wherein the upper yoke (2) and the lower yoke (3) are both in a stepped cylindrical shape, the upper yoke (2) and the lower yoke (3) are respectively fixedly connected with the upper end cover and the lower end cover through bolts, small-diameter ends of the upper yoke (2) and the lower yoke (3) are arranged in an opposite direction, a plurality of permanent magnets are fixedly arranged on one side of a large-diameter end along the circumference of the large-diameter end at equal intervals, the plurality of permanent magnets are alternately arranged in a magnetic manner, and the opposite permanent magnets of the upper yoke (2) and the lower yoke (3) have the same magnetic property.

6. The vertical coreless permanent magnet wind power generator according to claim 5, wherein a shaft sleeve is arranged on an inner annular surface of the winding disc (4), the shaft sleeve is of an annular structure, the shaft sleeve is detachably connected with the motor shaft (6) through a connecting key, the windings are arranged in a single-layer chain type crossed manner, live wires and zero wires are led out of the windings of the winding disc (4), a wire outlet groove is formed in a side surface of the shaft sleeve, and a wire outlet hole is formed in a position, corresponding to the motor shaft (6), of the wire outlet groove.

7. The vertical coreless permanent magnet wind turbine generator according to claim 6, wherein the winding disc (4) and the shaft sleeve are of an integrated structure, the winding disc (4) and the shaft sleeve are both cast by epoxy resin, and the epoxy resin covers the winding surface to form an insulating layer.

8. The vertical coreless permanent magnet wind turbine according to claim 6, wherein a gap is provided between the rotor and the stator, and the gap is in a range of 0.07-0.04 mm.

9. The vertical coreless permanent magnet wind turbine generator according to claim 8, wherein the motor shaft (6) passes through the rotor (7), the upper end cover, the upper yoke (2), the winding disc (4), the lower yoke (3) and the lower end cover in sequence, a bearing position is arranged on the bottom surface of the lower end cover, a third bearing is arranged between the lower end cover and the motor shaft (6), and the lower end cover is rotatably connected with the motor shaft (6) through the third bearing.