Rare earth permanent magnet generator, magnet radial arrangement method and use method

Abstract

The novel rare earth permanent magnet generator comprises a stator, a rotating disc, a rotating shaft and a shell, a shell shaft hole is formed in one side of the shell, a positioning annular table and a winding annular table are arranged on the two sides of the inner wall of the shell respectively, and the winding annular table is located on the outer side of the positioning annular table; bearings are installed on the inner walls of the positioning annular tables, and the shell shaft hole is communicated with one positioning annular table. The stator and the turntable are mounted in the shell, the turntable is fixed on the rotating shaft, the rotating shaft is mounted on the two bearings, and one end of the rotating shaft extends out of a shell shaft hole; a plurality of permanent magnet clamping grooves are formed in the two sides of the rotating disc respectively, and the rare earth permanent magnets are fixed in the permanent magnet clamping grooves; the stator comprises a coil winding and an iron core, the iron core is fixed on the inner wall of the shell, the iron core is provided with a coil groove, and the coil winding is fixed in the coil groove. The invention further discloses a magnet radial arrangement method and a use method of the rare earth permanent magnet generator. The invention is suitable for micro-miniature wind power generation.

Description

Technical Field

[0001] This invention relates to the field of wind turbine technology, specifically to a rare-earth permanent magnet generator, a method for radially arranging magnets, and a method for using it. Background Technology

[0002] Generators are mechanical devices that convert other forms of energy into electrical energy. They hold an important position in my country and are widely used in industrial and agricultural production, science and technology, and daily life. With the acceleration of my country's industrialization and urbanization, as well as the continued growth of the global economy, the generator industry has ushered in new development opportunities and challenges. With the acceleration of my country's green energy transition, the proportion of wind power equipment production is constantly increasing. Especially in remote areas and regions with unstable power supply, generators serve as a major supplementary source of electricity, and their demand will continue and may further increase.

[0003] With the development and application of clean energy, the new energy generator market is experiencing rapid growth. Diesel generators are seeing a gradual decline in market share due to high energy consumption and significant environmental pollution, while wind and solar power generators are gaining an increasingly important share. As global environmental regulations become increasingly stringent, the generator industry faces considerable environmental pressure, and efficient, stable, clean, and low-noise generators will receive more attention. Wind turbines convert wind energy into mechanical work to drive a generator, providing a new type of power generation system that is inexpensive, reliable, and emits no greenhouse gases.

[0004] Traditional generators are inefficient, heavy, prone to overheating, noisy, complex in structure, and difficult to maintain. With the rapid development of rare earth permanent magnets, rare earth permanent magnet generators have been widely used, and the use of permanent magnets in generators has gained attention. Summary of the Invention

[0005] The purpose of this invention is to provide a rare earth permanent magnet generator, a method for radially arranging magnets, and a method for using it. It is lightweight, low-noise, and can improve power generation efficiency, making it suitable for micro-scale wind power generation.

[0006] To achieve the above objectives, the technical solution used in this invention is: A rare-earth permanent magnet generator includes: a stator, a turntable, a shaft, and a housing. One side of the housing has a housing shaft hole. Positioning ring platforms and winding ring platforms are respectively located on both sides of the inner wall of the housing, with the winding ring platform located outside the positioning ring platform. Bearings are installed on the inner wall of the positioning ring platform, and the housing shaft hole communicates with one of the positioning ring platforms. The stator and turntable are installed inside the housing. The turntable is fixed to the shaft, which is mounted on two bearings, with one end of the shaft extending out of the housing shaft hole. Multiple permanent magnet slots are provided on both sides of the turntable, and rare-earth permanent magnets are fixed within these slots. The stator includes: a coil winding and an iron core. The iron core is fixed to the inner wall of the housing, and the iron core has coil slots. The coil windings are fixed within these coil slots and are located on the side of the rare-earth permanent magnets, directly opposite them.

[0007] Furthermore, the rare earth permanent magnet has an array structure, comprising multiple magnetic units arranged radially, with adjacent magnetic units having opposite magnetic poles.

[0008] Furthermore, the magnetic element is a neodymium iron boron magnet.

[0009] Furthermore, the housing is made of aluminum alloy and has a wire-passing hole on it, through which the lead wire of the coil winding is led out; the turntable is made of stainless steel and is circular in shape, with the turntable shaft hole located at the center point.

[0010] Furthermore, a keyway is provided in the shaft hole of the turntable, the shaft is a stepped shaft, and an input end keyway is provided in the middle. The connecting key is installed in the input end keyway and the shaft hole keyway.

[0011] Furthermore, an output keyway is provided at the outer end of the shaft.

[0012] The method of using a rare-earth permanent magnet generator is characterized by including: The drive fan rotates the turntable, which in turn rotates the rare earth permanent magnet. The magnetic field of the rare earth permanent magnet cuts the coil windings on both sides to form an electric current. The converter inverts unstable current into usable alternating current.

[0013] Preferably, the drive fan converts wind energy into mechanical energy to drive the turntable to rotate, the turntable drives the rare earth permanent magnet to rotate, cutting the coil windings on both sides to form current, and the lead wires of the coil windings lead out the current and send it to the converter.

[0014] Methods for radial arrangement of magnets include: Permanent magnet slots are set on both sides of the turntable, and multiple magnetic units are radially arranged in the permanent magnet slots. The multiple magnetic units are in an array structure, and the magnetic poles of two adjacent magnetic units in the radial direction are opposite. Multiple magnetic units form a rare-earth permanent magnet, which is fixed in the permanent magnet slot of the turntable by embedding.

[0015] Preferably, in the radial direction, the S pole and N pole of two adjacent magnetic elements are adjacent to each other.

[0016] The technical effects of this invention include: This invention addresses the shortcomings of existing traditional generators, which suffer from low efficiency, heavy weight, high temperature rise, high noise, complex structure, and difficult maintenance. To solve these problems, this invention proposes a rare-earth permanent magnet micro-wind generator and a radial arrangement method. This enables unmanned automatic power generation, reduces operational risks, saves labor costs, and significantly improves power generation efficiency. It boasts advantages such as high efficiency, light weight, low temperature rise, low noise, compact structure, and inexpensive maintenance. Furthermore, it can operate at multiple poles and low speeds, making it suitable for micro-scale wind power generation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the shell structure in this invention; Figure 2 This is a schematic diagram of the installation of the coil winding in this invention; Figure 3 This is a schematic diagram of the turntable structure in this invention; Figure 4 This is a schematic cross-sectional view of the rare-earth permanent magnet micro wind generator in this invention. Figure 5 This is a half-section structural schematic diagram of the rare earth permanent magnet micro wind generator in this invention; Figure 6 This is a schematic diagram of the structure of the rotating shaft in this invention. Detailed Implementation

[0018] The following description fully illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce them.

[0019] like Figure 1 The diagram shown is a structural schematic of the housing 4 in this invention. Figure 2 The diagram shown is a schematic diagram of the installation of the coil winding 11 in this invention.

[0020] The housing 4 is made of materials including but not limited to aluminum alloy, and has a wire hole 41 on it.

[0021] A housing shaft hole 42 is provided on one side of the housing 4. A positioning ring platform 43 and a winding ring platform 44 are respectively provided on both sides of the inner wall of the housing 4. The winding ring platform 44 is located outside the positioning ring platform 43. A bearing 45 is installed on the inner wall of the positioning ring platform 43. The housing shaft hole 42 is connected to one of the positioning ring platforms 43.

[0022] The stator 1 includes a coil winding 11 and an iron core 12. The iron core 12 is fixed on the inner wall of the housing 4 and has coil slots. The coil winding 11 is fixed inside the coil slots. The coil winding 11 is located on the side of the rare earth permanent magnet 21 and faces it directly.

[0023] One side of the coil winding 11 faces the rare-earth permanent magnet 21, and the other side is fixed to the iron core 12 located on the winding ring platform 44. The leads of the coil winding 11 are led out from the wire hole 41.

[0024] like Figure 3 The diagram shown is a schematic diagram of the turntable in this invention.

[0025] The turntable 2 is made of stainless steel and is circular in shape. A turntable shaft hole 21 is set at the center point. A shaft hole keyway 22 is set inside the turntable shaft hole 21. Multiple permanent magnet slots 23 are set on both sides of the turntable 2.

[0026] The permanent magnet slot 23 is used to embed the rare earth permanent magnet 21.

[0027] like Figure 4 The diagram shown is a cross-sectional view of the rare-earth permanent magnet micro wind generator of this invention.

[0028] The new rare earth permanent magnet generator includes: stator 1, turntable 2, shaft 3, and housing 4. The stator 1 and turntable 2 are installed inside the housing 4. The turntable 2 is fixed on the shaft 3. The shaft 3 is installed on two bearings 45. One end of the shaft 3 extends out of the shaft hole 42 of the housing.

[0029] Rare earth permanent magnet 21 is fixed in the permanent magnet slot 23 of the turntable 2, and the rare earth permanent magnet 21 is directly opposite the coil winding 11. The main components of the rare earth permanent magnet 21 are, but are not limited to, neodymium iron boron. The rare earth permanent magnet 21 has an array structure, including multiple magnetic units. The multiple magnetic units are arranged radially. Starting from the starting position, the magnetic poles of two adjacent magnetic units are opposite. That is, if the starting position is the N pole, the adjacent magnet is the S pole, and vice versa.

[0030] The rotor consists of a turntable 2, a shaft 3, and rare earth permanent magnets 21. The turntable 2 is fixed in the middle, the shaft 3 is connected to bearings 45 on both sides, and the rare earth permanent magnets 21 are embedded in the permanent magnet slots 23 of the turntable 2 in an array.

[0031] The specific steps for radial arrangement of magnets are as follows: 1. Permanent magnet slots 23 are set on both sides of turntable 2. Multiple magnetic units are radially arranged in permanent magnet slots 23. The multiple magnetic units are in an array structure, and the magnetic poles of two adjacent magnetic units in the radial direction are opposite. 2. Multiple magnetic units form a rare-earth permanent magnet 21, which is fixed in the permanent magnet slot 23 of the turntable 2 in an embedded manner. In the radial direction, the S pole and N pole of two adjacent magnetic units are adjacent to each other.

[0032] like Figure 5 The diagram shown is a half-sectional view of the rare-earth permanent magnet micro-wind generator of this invention; as shown... Figure 6 The diagram shown is a schematic diagram of the structure of the rotating shaft 3 in this invention.

[0033] The rotating shaft 3 is a stepped shaft with an input keyway 31 in the middle and an output keyway 32 on the outer end.

[0034] The connecting key 33 is installed in the keyway 31 at the input end and the keyway 22 at the shaft hole, connecting the rotating shaft 3 to the shaft hole 21 of the turntable 2. The keyway 32 at the output end of the rotating shaft 3 is used to connect to the drive fan.

[0035] The new rare earth permanent magnet generator and the radial arrangement method of rare earth permanent magnet 21 can realize unmanned automatic power generation, reduce the danger of operation, ensure personnel safety, save labor costs, and greatly improve power generation efficiency. It not only has the advantages of high efficiency, light weight, low temperature rise, low noise, exquisite structure and cheap maintenance, but also can achieve multi-pole and low speed, making it suitable for micro-sized wind power generation.

[0036] The specific usage method of the new rare-earth permanent magnet generator is as follows: 1. The drive fan drives the turntable 2 to rotate, and the turntable 2 drives the rare earth permanent magnet 21 to rotate. The magnetic field of the rare earth permanent magnet 21 cuts the coil windings 11 on both sides to form current. The drive fan converts wind energy into mechanical energy to drive the turntable 2 to rotate. The turntable 2 drives the rare earth permanent magnet 21 to rotate, cutting the coil windings 11 on both sides to form current. The leads of the coil windings 11 (neutral wire and live wire pass through the wire hole 41) are led out and sent to the converter.

[0037] 2. The converter inverts unstable current into usable alternating current.

[0038] The converter is located on the generator side to collect the unstable current generated by the generator and invert it into usable alternating current.

[0039] The terminology used in this invention is descriptive and exemplary, not restrictive. Because this invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A rare-earth permanent magnet generator, characterized in that, include: The system comprises a stator, a turntable, a shaft, and a housing. One side of the housing has a housing shaft hole. Positioning ring platforms and winding ring platforms are respectively located on both sides of the inner wall of the housing, with the winding ring platform located outside the positioning ring platform. Bearings are installed on the inner wall of the positioning ring platform, and the housing shaft hole communicates with one of the positioning ring platforms. The stator and turntable are installed inside the housing. The turntable is fixed to the shaft, which is mounted on two bearings, with one end of the shaft extending out of the housing shaft hole. Multiple permanent magnet slots are provided on both sides of the turntable, and rare-earth permanent magnets are fixed within these slots. The stator includes a coil winding and an iron core. The iron core is fixed to the inner wall of the housing and has coil slots. The coil winding is fixed within these coil slots and is located on the side of and directly opposite the rare-earth permanent magnets.

2. The rare-earth permanent magnet generator as described in claim 1, characterized in that, Rare earth permanent magnets are array structures, consisting of multiple magnetic units arranged radially, with adjacent magnetic units having opposite magnetic poles.

3. The rare-earth permanent magnet generator as described in claim 2, characterized in that, The magnetic element is a neodymium iron boron magnet.

4. The rare-earth permanent magnet generator as described in claim 1, characterized in that, The housing is made of aluminum alloy and has a wire-passing hole on it, through which the coil winding leads are led out; the turntable is made of stainless steel and is circular in shape, with the turntable shaft hole located at the center point.

5. The rare-earth permanent magnet generator as described in claim 4, characterized in that, The turntable has a keyway in the shaft hole, the shaft is a stepped shaft, and the input end keyway is provided in the middle. The connecting key is installed in the input end keyway and the shaft hole keyway.

6. The rare-earth permanent magnet generator as described in claim 5, characterized in that, The outer end of the shaft is provided with an output keyway.

7. The method of using the rare earth permanent magnet generator as described in claim 1, characterized in that, include: The drive fan rotates the turntable, which in turn rotates the rare earth permanent magnet. The magnetic field of the rare earth permanent magnet cuts the coil windings on both sides to form an electric current. The converter inverts unstable current into usable alternating current.

8. The method of using the rare earth permanent magnet generator as described in claim 8, characterized in that, The driving fan converts wind energy into mechanical energy to drive the turntable to rotate. The turntable drives the rare earth permanent magnet to rotate, cutting the coil windings on both sides to form current. The leads of the coil windings lead out the current and send it to the converter.

9. The method for radial arrangement of magnets in a rare-earth permanent magnet generator as described in claim 1, characterized in that, include: Permanent magnet slots are set on both sides of the turntable, and multiple magnetic units are radially arranged in the permanent magnet slots. The multiple magnetic units are in an array structure, and the magnetic poles of two adjacent magnetic units in the radial direction are opposite. Multiple magnetic units form a rare-earth permanent magnet, which is fixed in the permanent magnet slot of the turntable by embedding.

10. The method for radial arrangement of magnets as described in claim 9, characterized in that, In the radial direction, the S pole and N pole of two adjacent magnetic elements are adjacent to each other.

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