Magnetic generator based on bias current
By employing the synergistic effect of bias current and permanent magnets in a magnetic generator, the magnetic circuit performance is optimized, solving the problems of high starting energy consumption and unstable power supply in traditional generators, and achieving low-energy and high-efficiency power generation.
Patent Information
- Application Number
- CN202511087505.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-05
- Publication Date
- 2025-11-07
AI Technical Summary
Existing power generation technologies rely on non-renewable resources or are limited by geographical environment, resulting in unstable power supply. Furthermore, traditional generators consume a lot of energy to start up, making it difficult to achieve efficient power generation.
A magnetic generator based on bias current is adopted. By setting a sector-shaped iron core and permanent magnet on the rotor, the magnetic circuit performance is optimized, the starting energy consumption is reduced and the power generation efficiency is improved by utilizing the synergistic effect of the permanent magnet and the induced magnetic field.
It achieves low start-up energy consumption and high-efficiency power generation, making it particularly suitable for power generation scenarios that require rapid response, and improving the overall efficiency of the generator.
Smart Images
Figure CN120915030A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of generator technology, specifically relating to a magnetic generator based on bias current. Background Technology
[0002] Currently, global electricity production primarily involves generating electricity from various primary energy sources, including chemical, hydro, nuclear, wind, and solar power. Chemical power generation relies on non-renewable resources; its extraction and combustion processes not only consume limited fossil fuels but also release pollutants such as sulfides and nitrogen oxides, exacerbating the greenhouse effect and ecological damage. In contrast, hydro, wind, and solar power are clean and renewable energy sources with almost no carbon emissions. However, they are limited by geographical and climatic conditions. For example, hydropower requires stable runoff, while wind and solar power are affected by fluctuations in sunshine duration and wind speed, leading to insufficient power supply stability. Nuclear energy, with its high energy density from nuclear fission technology, has become an important supplement, but with advancements in uranium enrichment technology, its safety concerns and the challenges of radioactive waste disposal still restrict its large-scale application.
[0003] No effective solution to the above problems has yet been found. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to address the above-mentioned defects by providing a magnetic generator based on bias current, which reduces starting energy consumption by bias current and achieves efficient power generation by utilizing the synergistic effect of permanent magnet and induced magnetic field.
[0005] To solve the above technical problems, the present invention adopts the following technical solution: a magnetic generator based on bias current, comprising a housing, a rotating shaft, and a stator. The rotating shaft is provided with a plurality of sector-shaped iron cores and sector-shaped permanent magnets. The sector-shaped iron cores and sector-shaped permanent magnets are distributed circumferentially on the rotating shaft and are symmetrically arranged. An armature winding is provided on the sector-shaped iron core. The stator includes four sector-shaped permanent magnets with opposite polarities and symmetrically distributed at both ends of the housing. The four sector-shaped permanent magnets constitute an axial magnetic pole pair.
[0006] Furthermore, the armature winding includes a first set of armature windings and a second set of armature windings. A radial through slot is provided in the middle of the iron core. The first set of armature windings is disposed between the radial through slot and the first set of radial slots, and the second set of armature windings is disposed between the radial through slot and the second set of radial slots.
[0007] Furthermore, the sector-shaped permanent magnet includes two identical U-shaped permanent magnets, the bottom surfaces of which are fixedly connected.
[0008] Furthermore, the rotating shaft is provided with four sector-shaped iron cores and two sector-shaped permanent magnets.
[0009] The present invention adopts the above technical solution and has the following advantages compared with the prior art: 1. The magnetic circuit performance was optimized by using bias current, which reduced the starting energy consumption. At the same time, the synergistic effect of permanent magnets and induced magnetic fields was used to achieve efficient power generation.
[0010] 2. By arranging iron cores and permanent magnets in the rotor, the magnetic field of the permanent magnets is opposite to the direction of the induced magnetic field generated by the armature winding of the iron core. The induced magnetic field hinders the rotation of the rotor. Therefore, the magnetic field of the permanent magnets plays a role in assisting the rotor to rotate, thereby improving the efficiency of the generator. Attached Figure Description
[0011] Appendix Figure 1 This is a cross-sectional structural schematic diagram of the magnetic generator in an embodiment of the present invention; Appendix Figure 2 This is a schematic diagram of the rotor structure in an embodiment of the present invention; Appendix Figure 3 This is a schematic diagram of the unfolded structure of the magnetic generator in an embodiment of the present invention; Appendix Figure 4 This is a schematic diagram of the iron core structure in an embodiment of the present invention; Appendix Figure 5 This is a schematic diagram of the permanent magnet structure in an embodiment of the present invention.
[0012] 1, 2, 18, 19 - Sector-shaped permanent magnets; 3, 5, 7, 9 - Sector-shaped iron cores; 4, 6 - Sector-shaped permanent magnets; 8 - First group of radial slots; 10 - Radial through slots; 11 - Second group of radial slots; 12 - First group of armature windings; 13 - Second group of armature windings; 14, 15 - U-shaped permanent magnets; 16 - Housing; 17 - Shaft. Detailed Implementation
[0013] The present invention will be further described below. Those skilled in the art should understand through the following embodiments that these embodiments are not intended to limit the technical solution of the present invention, but merely to fully illustrate how to implement it.
[0014] Examples, such as Figures 1-5As shown, the magnetic generator based on bias current includes a housing 16, a rotating shaft 17, and a stator. The rotating shaft 17 is equipped with four sector-shaped iron cores and two sector-shaped permanent magnets, namely sector-shaped iron cores 3, 5, 7, and 9, and sector-shaped permanent magnets 4 and 6. The sector-shaped iron cores 3, 5, 7, and 9, and the sector-shaped permanent magnets 4 and 6 are distributed circumferentially on the rotating shaft 17, and the sector-shaped permanent magnets 4 and 6 are symmetrically arranged. The stator has four symmetrically arranged sector-shaped iron cores 3, 5, 7, and 9, with the iron cores and permanent magnets closely arranged. The stator includes four symmetrically distributed sector-shaped permanent magnets 1, 2, 18, and 19 with opposite polarities. Sector-shaped permanent magnets 1 and 18 are N poles, and sector-shaped permanent magnets 2 and 19 are S poles. They are respectively located at both ends of the housing 16. Sector-shaped permanent magnets 1, 2, 18, and 19 form an axial magnetic pole pair, generating a magnetic field with the magnetic field lines pointing downwards. The upper axial end faces of the fan-shaped iron cores 3, 5, 7, and 9 are respectively provided with a first set of radial grooves 8, with a quantity of 2, and the lower end faces are provided with a second set of radial grooves 11, with a quantity of 2. A radial through groove 10 is provided in the middle position of the fan-shaped iron cores 3, 5, 7, and 9. A first set of armature windings 12 is wound between the radial through groove 10 and the first set of radial grooves 8, and a second set of armature windings 13 is wound between the radial through groove 10 and the second set of radial grooves 11.
[0015] like Figure 5 As shown, the sector-shaped permanent magnet 4 and sector-shaped permanent magnet 6 each include two identical U-shaped permanent magnets 14 and 15. The left magnetic column of the U-shaped permanent magnet 14 and 15 is the N pole, and the bottom surfaces of the U-shaped permanent magnet 14 and 15 are fixedly connected.
[0016] During operation, a direct current, known as a bias current, is pre-passed through the first armature winding 12 and the second armature winding 13. According to the principle of electromagnetic induction, this current generates a directional magnetization effect in the sector-shaped iron cores 3, 5, 7, and 9, altering the initial magnetization state of the cores. The bias current and the magnetic field generated by the sector-shaped permanent magnets are equal in magnitude but opposite in direction, forming a magnetic field equilibrium. This bias effect reduces the magnetic resistance torque that the rotor needs to overcome during startup by changing the core's permeability. Although the bias current does not directly generate driving torque, by optimizing the core's magnetization state, the rotor can overcome mechanical resistance and start with a lower external torque. At this time, the rotor motion is driven by an externally applied clockwise torque, which needs to overcome the mechanical resistance between the rotor and the generator. Since the bias current enhances the magnetic permeability of the iron core, the rotor can start under a small torque. When the iron core rotates, an induced current is generated. The induced current and the bias current are in the same direction, which is equivalent to two power sources connected in series. When the voltages of the two reach equilibrium, the output voltage increases by 1 time. After the motor generates its own electricity, the bias current degenerates into a magnetic circuit regulator and no longer participates in energy conversion.
[0017] Specifically, under the driving of the external torque, the fan-shaped iron core rotates, the first group of armature windings 12 and the second group of armature windings 13 cut the magnetic lines of force, respectively generating induced electromotive force, according to the right-hand rule, the induced current directions generated by the first group of armature windings 12 in the first group of radial line slots 8 and the second group of armature windings 13 in the second group of radial line slots 10 are both outward, according to the right-hand screw rule, the induced magnetic fields are formed above and below the iron core, the magnetic line direction of the induced magnetic field above the iron core is from the right to the left, which hinders the movement of the rotor, due to the action of the magnetic line of force of the induced magnetic field above the iron core, the magnetic line direction of the U-shaped permanent magnet 14 changes as a whole from the left to the right, which is opposite to the magnetic line direction of the induced magnetic field above the iron core, and plays a role in assisting the rotation of the rotor, the magnetic line direction of the induced magnetic field below the iron core is from the left to the right, which hinders the movement of the rotor, due to the action of the magnetic line of force of the induced magnetic field below the iron core, the magnetic line direction of the U-shaped permanent magnet 15 changes as a whole from the right to the left, which is opposite to the magnetic line direction of the induced magnetic field below the iron core, and plays a role in assisting the rotation of the rotor, therefore, only a small torque can be applied to achieve the purpose of generating electricity. The induced current and the bias magnetic current are connected in series, when the voltages of the two reach balance, the system output voltage is increased by 1 times, after the motor runs and generates electricity, the bias magnetic current applied at this time does not work, the bias magnetic current optimizes the magnetic circuit performance and reduces the starting energy consumption, at the same time, the synergy of the permanent magnet and the induced magnetic field is utilized to realize the balance of low starting energy consumption and high efficiency of electricity generation, which is especially suitable for power generation scenes requiring fast response.
[0018] In the above embodiment, 5 or 6 fan-shaped iron cores and 3 or 4 or 5 or 6 fan-shaped permanent magnets can also be arranged on the rotating shaft, and the fan-shaped permanent magnets in the stator can be 3 or 4 or 5 or 6.
[0019] If the polarities of the four fan-shaped permanent magnets in the stator are exchanged, the polarities of the two magnetic columns in the U-shaped permanent magnet or the direction of the applied torque need to be changed.
[0020] The above is only one specific embodiment of the present application, based on the technical solutions of the present application, those skilled in the art can obtain more embodiments without creative labor, and these solutions are also within the protection scope of the present application.
Claims
1. A magnetic power generator based on bias magnetic current, comprising a casing (16), a rotating shaft (17), a stator, characterized in that: The rotating shaft (17) is provided with a plurality of sector iron cores (3, 5, 7, 9) and sector permanent magnets (4, 6), the sector iron cores (3, 5, 7, 9) and the sector permanent magnets (4, 6) are distributed along the circumference on the rotating shaft (17), and the sector iron cores (3, 5, 7, 9) and the sector permanent magnets (4, 6) are symmetrically arranged, the sector iron cores (3, 5, 7, 9) are provided with armature windings, the stator comprises four sector permanent magnets (1, 2, 18, 19) with opposite polarities and symmetrically distributed at two ends of the machine shell (16), and the four sector permanent magnets (1, 2, 18, 19) form an axial magnetic pole pair.
2. The magnetic power generator of claim 1, wherein: The armature windings comprise a first group of armature windings (12) and a second group of armature windings (13), the middle position of the iron core (3, 5, 7, 9) is provided with a radial through slot (10), the first group of armature windings (12) is arranged between the radial through slot (10) and a first group of radial line slots (8), and the second group of armature windings (13) is arranged between the radial through slot (10) and a second group of radial line slots (11).
3. The magnetic power generator of claim 1 or 2, wherein: The sector permanent magnet (4, 6) comprises two identical U-shaped permanent magnets (14, 15), and the bottom surfaces of the two U-shaped permanent magnets (14, 15) are fixedly connected.
4. The magnetic power generator of claim 3, wherein: The rotating shaft (17) is provided with four sector iron cores (3, 5, 7, 9) and two sector permanent magnets (4, 6).