A suspended wind power generator

Abstract

A suspended wind power generation device includes a support column, a connecting rod, and power generation modules. The support column is fixed to the roof of a factory building or the top of a valley peak. The connecting rod is fixed to the support column, and multiple power generation modules are spaced apart on the connecting rod. The power generation modules are rotatably suspended on the connecting rod. The output of the power generation modules is output to the power-consuming equipment at a predetermined voltage after passing through an AC / AC device. This utility model uses a ring-shaped stator baseband and a plastic-encapsulated rotor baseband, thereby changing the assembly method of the stator and rotor in the original generator, especially changing the winding process of the stator winding. This operation simplifies the production and assembly steps of permanent magnet generators, making the wind power generation device easier to manufacture and install. Furthermore, the size and weight of individual parts of the device are greatly reduced, the structure is more compact, the production and manufacturing cost of wind turbines is lowered, and it is easier to promote on a large scale.

Description

Technical Field

[0001] This utility model relates to wind power generation, and more specifically to a suspended wind power generation device. Background Technology

[0002] A wind turbine is a device that converts wind energy into electrical energy. While wind power generation is now quite common, these turbines are mostly installed in open deserts, grasslands, and oceans. They are rarely installed in businesses or homes. This is partly because there are no suitable wind turbine generators for these locations, and partly because wind turbine manufacturing is complex, requiring strict electrical parameters, resulting in complex equipment and high prices, thus limiting its application.

[0003] On the other hand, with the emergence and widespread use of various electronic devices, a large number of electronic chips for AC / DC conversion and voltage transformation have been introduced, fully capable of meeting the needs of various power generation devices for output voltage adjustment and conversion. This has reduced the manufacturing difficulty of power generation devices, significantly lowered their prices, and provided a broad scope for the widespread application of wind power generation devices. In addition, previously, wind power generation equipment could generally only be installed in areas with abundant wind throughout the year, which also limited the application of wind power generation.

[0004] Chinese patent application number 200920100215.5, entitled "A Rotor for a Permanent Magnet Wind Turbine," discloses a technical solution that addresses magnetic leakage by using hollow slots, non-magnetic material clamps, or non-magnetic wedge blocks between adjacent permanent magnets. However, this patent does not solve the complex manufacturing process of wind turbines. The stator winding manufacturing, in particular, requires punching wedge slots into the stator core, winding enameled wire into regular coils, embedding the windings into the wedge slots, inserting slot wedge clamps, and then impregnating with enamel and drying to complete the stator manufacturing. The rotor manufacturing process is equally complex.

[0005] Therefore, simplifying the structure of wind turbines has become the key to reducing costs and promoting large-scale application of wind turbines. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the defects of the existing technology and provide a multi-purpose wind power generation device. This wind power generation device has the advantages of easy manufacturing, simplified process, easy installation and fixation, and easy promotion.

[0007] The technical problem addressed by this utility model is solved by the following technical solution:

[0008] A suspended wind power generation device includes a support column, a connecting rod, and a power generation module. The support column is fixed to the roof of a factory building or the top of a valley peak. The connecting rod is fixed to the support column, and multiple power generation modules are spaced apart on the connecting rod. The power generation modules are rotatably suspended on the connecting rod. The output of the power generation module is output to the electrical equipment at a predetermined voltage after passing through an AC / AC device. The power generation module is a permanent magnet generator.

[0009] The aforementioned suspended wind power generation device includes a permanent magnet generator comprising a housing, a stator, a rotor, bearing components, a fan, and a tail rudder. The rotor is mounted inside the housing via bearing components on an end cover, with one end of the shaft fixed to the fan, and the tail rudder fixed to the end cover via a bracket. Inside the housing is a stator made of stacked silicon steel sheets, with multiple sets of stator coils evenly spaced along the axial direction on the inner ring surface of the stator, and magnetic blocks between two sets of stator coils. The rotor surface has multiple sets of rotor permanent magnets evenly arranged along the axial direction, with adjacent permanent magnets having opposite polarities, and magnetic isolation blocks between adjacent permanent magnets. Each set of stator coils consists of multiple single enameled wires of equal length connected together, and the sets of stator coils connected in series or parallel serve as the output terminals of the permanent magnet generator.

[0010] In the aforementioned suspended wind power generation device, the rotor permanent magnet is encapsulated on the rotor base belt, and the rotor base belt is bonded to the surface of the rotor core through an adhesive layer.

[0011] In the aforementioned suspended wind power generation device, magnetic isolation blocks are attached between adjacent permanent magnets on the rotor base belt. The magnetic isolation blocks are non-ferromagnetic material blocks.

[0012] In the aforementioned suspended wind power generation device, the stator coil is encapsulated on an annular stator base strip, and the stator base strip is adhered to the inner ring surface of the stator core.

[0013] In the aforementioned suspended wind power generation device, the rotor core is composed of annular stacked silicon steel sheets, which are fixed to the bushing of the rotor shaft via support spokes. Beneficial effects

[0014] The multi-purpose wind power generation device provided by this utility model has each set of stator coils encapsulated on an annular stator base strip, which is then bonded to the inner surface of the stator core. The rotor permanent magnet is encapsulated on a rotor base strip, which is then bonded to the surface of the rotor core via an adhesive layer. This changes the original assembly method of the stator and rotor in the generator, especially the stator winding embedding process. This operation simplifies the production and assembly steps of the permanent magnet generator, making the wind power generation device easier to manufacture and install. Furthermore, the size and weight of individual parts of the device are greatly reduced, resulting in a more compact structure. This reduces the production and manufacturing cost of the wind power generator and facilitates large-scale promotion.

[0015] This invention can be installed in open deserts, grasslands, and oceans, and is also applicable to various scenarios, such as the rooftops of factories, mines, or homes, thereby making better use of wind energy and meeting local power needs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the power generation module structure;

[0018] Figure 3 This is a schematic diagram of a partial cross-section of a permanent magnet generator;

[0019] Figure 4 This is a schematic diagram of a partial structure of the stator baseband.

[0020] Figure 5 This is a schematic diagram of a partial structure of the rotor baseband;

[0021] Figure 6 This is a schematic diagram illustrating the principle of stator coil voltage output.

[0022] The labels in the diagram represent: 1. Support column, 2. Connecting rod, 3. Permanent magnet generator, 4. Housing, 5. Stator, 6. Rotor, 7. Magnetic guide block, 8. Fan, 9. Tail rudder, 10. Stator coil, 11. Rotor permanent magnet, 12. Stator base belt, 13. Stator core, 14. Rotor base belt, 16. Rotor core, 17. Magnetic shielding block, 18. Rotor shaft, 19. Support spokes, 20. Bearing component, 21. End cover, 22. Lower connecting rod, 23. Base, 24. Turntable base, 25. Rotating disk, 27. Support. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0024] See Figure 1 The power generation device of this utility model includes a support column 1, a connecting rod 2, and a power generation module. A base 23 is supported below the support column 1. The support column 1 can be fixed to the roof of a factory, a house, or a mountain peak through the base 23. The connecting rod 2 is vertically fixed to the support column 1. Multiple power generation modules are arranged at intervals on the connecting rod 2. The power generation modules are rotatably suspended on the connecting rod 2 through a support shaft 24 and a rotating support component 20.

[0025] See Figure 2The turntable base 24 and the rotating disk 25 form a rotating pair. The sleeve of the turntable base is fixed to the connecting rod 2 via a connecting rod. A bearing is provided between the turntable base 24 and the rotating disk 25 to allow the rotating pair to rotate flexibly. Whenever there is wind, the power generation module can rotate via the rotating disk 25, cooperating with the tail rudder 9 to maintain balance while adjusting according to the wind direction, thereby better utilizing wind power and improving power generation efficiency.

[0026] AC / AC converters are used to convert one form of alternating current (AC) into another, changing the magnitude or phase of voltage and current. Since the output voltage of wind power systems typically fluctuates significantly, AC / AC devices can precisely control the generator's output voltage by adjusting its magnitude and stability, ensuring power quality and meeting the voltage requirements of different loads. The generator module's output, after being converted by the AC / AC device, is then supplied to the power-consuming equipment or storage devices at a predetermined voltage, meeting the power supply needs of various applications.

[0027] See Figure 2 The power generation module is a permanent magnet generator 3, which includes a housing 4, an end cover 21, a stator 5, a rotor 6, a bearing assembly 20, a fan 8, and a tail rudder 9. The rotor 6 is mounted inside the housing 4 via the bearing assembly 20 on the end cover 21. A rotor shaft 18 passes through the rotor 6 and is supported by the bearing assembly 20. The front end of the rotor shaft 18 is fixed to the fan 8. The tail rudder 9 is fixed to the end cover 21 via a bracket 27.

[0028] The permanent magnet generator 3 has the following structure: multiple sets of stator coils 10 are evenly arranged axially, and multiple sets of rotor permanent magnets 11 are evenly arranged axially on the rotor 6, with adjacent rotor permanent magnets 11 having opposite polarities. For ease of manufacturing and assembly, each set of stator coils 10 is encapsulated on an annular stator base strip 12, which is then adhered to the inner surface of the stator core 13. Each set of stator coils 10 consists of multiple single enameled wires of equal length connected in parallel. The stator coils 10 are connected in series or parallel to serve as output terminals A or B of the permanent magnet generator. In this invention, the stator coils 10 are directly connected in series or parallel, without using a winding method, thus effectively reducing magnetic leakage and improving the efficiency of the coils cutting magnetic lines of force to a certain extent.

[0029] Figure 4 A schematic diagram of the stator baseband 12 structure is shown. The stator coils 10 are encapsulated on the stator baseband 12, which is then bonded to the inner surface of the stator core 13 via an adhesive layer. The adhesive layer is a polyethylene film, a material known for its heat resistance and insulation. Magnetic blocks 7 are bonded between adjacent stator coils 13 on the stator baseband 12. These magnetic blocks generate magnetism after being magnetized, guiding the magnetic field energy to concentrate at the receiving end and improving the energy conversion rate.

[0030] See Figure 5 The rotor permanent magnet 11 is encapsulated on the rotor base belt 14, which is then bonded to the surface of the rotor core 16 via an adhesive layer. The adhesive layer is a polyethylene film, which is heat-resistant and insulating, capable of insulating a certain amount of heat while bonding the stator coil 10 and the rotor permanent magnet 11, thus preventing the permanent magnet generator 3 from overheating. Magnetic isolation blocks 17 are attached between adjacent permanent magnets 11 on the rotor base belt 14 to prevent magnetic short circuits between adjacent permanent magnets 11.

[0031] A strip-shaped iron core is provided at the center of the stator coil 10. The length of the iron core is the same as the length of the enameled wire in the coil, so as to improve the efficiency of the coil in cutting magnetic lines of force.

[0032] The rotor core 16 is annular and is fixed to the rotor shaft 18 via the support spokes 19 to reduce the thickness of the rotor core 16.

[0033] The design and layout of the stator coils and rotor poles are based on conventional motor design considerations.

[0034] See Figure 1 A lower connecting rod 22 can be added below the power generation module. The power generation module is rotatably hoisted between the connecting rod 2 and the lower connecting rod 22 to prevent the power generation module from swaying in the wind.

[0035] See Figure 1 The support column 1 in this utility model can be further reinforced by adding a reinforcement structure to the support column 1 and adding a stay cable to the support column 1, which can make the permanent magnet generator 3 more stable, and can play a certain role in resisting winds from different directions, and can resist strong winds to a certain extent, preventing it from being blown over and damaged.

[0036] The working principle of this invention is as follows: When wind blows over the fan 8, the fan 8 rotates, driving the rotor shaft 18 connected to it to rotate, thus rotating the rotor of the power generation module. During rotor rotation, the generator stator coil 10 cuts magnetic lines of force, generating voltage. The voltage generated at this time is highly unstable in magnitude and frequency. It is output to the AC / AC electronic module, where it is converted to AC power with a stable frequency and amplitude. Alternatively, it can first be converted to DC power by a rectifier module, and then further converted to suitable AC power through a combination of a DC / DC module and a DC / AC module. In this invention, when the wind direction changes, the tail rudder 9 can maintain the permanent magnet generator 3 always facing the direction of the strongest wind, and in conjunction with the turntable base 24 and the rotating disk 25, it can change the direction of the fan 8.

Claims

1. A suspended wind power generator characterized by: The power generation device includes a support column (1), a connecting rod (2), and a power generation module. The support column (1) is fixed on the roof of the factory building or the top of a valley peak. The connecting rod (2) is fixed on the support column (1). Multiple power generation modules are spaced apart on the connecting rod (2). The power generation modules are rotatably suspended on the connecting rod (2). The output of the power generation module is output to the electrical equipment at a predetermined voltage after passing through an AC / AC device. The power generation module is a permanent magnet generator (3).

2. Suspended wind power plant according to claim 1, characterized in that The permanent magnet generator (3) includes a housing (4), a stator (5), a rotor (6), a bearing component (20), a fan (8), and a tail rudder (9). The rotor (6) is installed in the housing (4) through the bearing component (20) on the end cover (21). One end of the shaft is fixed to the fan (8). The tail rudder (9) is fixed to the end cover (21) through a bracket (27). The housing (4) contains a stator (5) made of stacked silicon steel sheets. Multiple sets of stator coils (10) are evenly spaced along the axial direction on the inner ring surface of the stator. A magnetic block (7) is provided between two sets of stator coils (10). Multiple sets of rotor permanent magnets (11) are evenly arranged along the axial direction on the surface of the rotor (6). The polarities of adjacent permanent magnets are opposite. A magnetic isolation block (17) is provided between adjacent permanent magnets. Each set of stator coils (10) consists of multiple single enameled wires of equal length connected together. The stator coils (10) are connected in series or in parallel to serve as the output end of the permanent magnet generator (3).

3. Suspended wind power plant according to claim 2, characterized in that The rotor permanent magnet (11) is encapsulated on the rotor base belt (14), and the rotor base belt (14) is bonded to the surface of the rotor core (16) through an adhesive layer (15).

4. A suspended wind power plant according to claim 3, characterized in that: A magnetic isolation block (17) is attached between adjacent permanent magnets on the rotor base belt (14). The magnetic isolation block (17) is a block of non-ferromagnetic material.

5. The suspended wind power plant of claim 2, wherein: The stator coil (10) is encapsulated on an annular stator base strip (12), and the stator base strip (12) is attached to the inner ring surface of the stator core (13).

6. The suspended wind power plant of claim 4, wherein: The rotor core (16) is a ring of stacked silicon steel sheets, which is fixed to the bushing of the rotor shaft (18) via the support spokes (19).

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