WO2009079938A1

WO2009079938A1 - A generator with a strong magnetic field

Info

Publication number: WO2009079938A1
Application number: PCT/CN2008/071854
Authority: WO
Inventors: Jingxing Li
Original assignee: Jingxing Li
Priority date: 2007-12-20
Filing date: 2008-08-01
Publication date: 2009-07-02

Abstract

A generator with a strong magnetic field comprises a rotor and a stator. The rotor includes permeable components. The stator includes a plastic core (14) and a winding (4) wound on the plastic core (14). A core shaft (5) passes through the central part of the plastic core (14) of the stator. The plastic core (14) of the stator is fixed with the core shaft (5). The core shaft (5) is rotatablely fitted with the rotor. The permeable components of the rotor include an inner magnetic ring (1), an outer magnetic ring (2), an inner magnet (9) and an outer magnet (8). The inner magnetic ring (1) and the outer magnetic ring (2) are respectively positioned inside and outside of the winding (4) of the stator. The inner magnet (9) and the outer magnet (8) are respectively fixed on the side walls, which are near the stator, of the inner magnetic ring (1) and the outer magnetic ring (2). The inner magnetic ring (1) and the outer magnetic ring (2) are driven by external power so as to drive the inner magnet (9) and the outer magnet (8) to rotate synchronously and coaxially.

Description

Generator with strong magnetic field

The invention belongs to the technical field of generator manufacturing, and particularly relates to a novel generator with a strong magnetic field. Background technique

As we all know, electricity is one of the most important energy sources in modern society. A generator is a mechanical device that converts other energy into electrical energy. It has a wide range of uses in industrial and agricultural production, national defense, technology, and daily life. Driven by a turbine, steam turbine, diesel engine, fan or other power machine, the energy produced by water flow, gas flow, fuel combustion, wind or nuclear fission is converted into mechanical energy and transmitted to the generator, which converts it into electrical energy.

Generators come in many forms, but their working principles are based on the laws of electromagnetic induction and the law of electromagnetic force. Therefore, the general principle of its construction is: The magnetic circuit and circuit for electromagnetic induction are formed by appropriate magnetic conductive and conductive materials to generate electromagnetic power, thereby achieving the purpose of energy conversion.

As shown in Fig. 4, the basic structure of one of the existing generators is as follows: The generator is usually composed of a stator Γ, a rotor 2' and some accessories, and the rotor rotates to cut magnetic lines of force to generate The induced potential is drawn into the loop through the terminals to generate current.

However, the structure of existing generators still has shortcomings. First of all, the internal magnetic field strength of the generator is small, the magnetic field lines are small, and the magnetic permeability is low, resulting in low power generation efficiency. Secondly, in order to enhance the magnetic field effect, most of the current motors use iron winding wires wrapped around the iron with silicon steel sheets. The core is realized, making the silicon steel sheet an indispensable component in the structure of the generator, which can enhance the magnetic field effect to a certain extent, but the structure is complicated and the process is complicated. Summary of the invention

The invention discloses a novel generator with strong magnetic field, which solves the technical problem that the existing generator has low power generation efficiency and complicated process.

In order to solve the above technical problems, the present invention adopts the following technical solutions: a novel generator having a strong magnetic field, comprising a rotor and a stator, the rotor including a magnetic conductive member; the stator including a core and a coil winding wound around the core; Through a mandrel, the core of the stator is fixed to the mandrel, and the mandrel is rotatably engaged with the rotor. The magnetic conductive member of the rotor includes inner and outer magnetic rings and a magnet fixed to the magnetic ring, and the inner and outer magnetic rings are in the stator. Inside and outside the coil winding, the inner and outer double-row magnets are fixed on the inner and outer magnetic rings on the side wall of the stator, and the external force drives the inner and outer magnetic rings to drive the inner and outer double-row magnets to rotate coaxially and coaxially to form an inner, The overall magnetic field that surrounds it.

The new generator, the core of the stator is made of plastic.

The new generator, the inner and outer magnetic rings are made of iron.

The novel generator has a front and a rear end cover, and the front and rear end covers are fixed with the magnetic conductive members of the rotor, and the end cover and the mandrel are rotationally matched.

The novel generator has a rotary joint between the end cover and the mandrel through a bearing.

The generator of the invention provides a row of magnets through the magnetic ring walls in the inner and outer coil windings, and forms a surrounding body through the inner and outer magnetic conducting rings with good magnetic permeability, which greatly enhances the magnetic field effect and improves the power generation efficiency; In addition, the generator of the present invention replaces the original core with a plastic core, thereby reducing manufacturing costs, reducing the weight of the generator, and simplifying the manufacturing process.

The invention is a generator with simple structure but with a new strong magnetic field structure which is created based on the original technical foundation, and has achieved unexpected technical effects, and is a major technical advancement in the field of generator manufacturing technology. DRAWINGS

Figure 1 is an exploded perspective view of the present invention.

Figure 2 is an axial cross-sectional view of the present invention.

Figure 3 is a cross-sectional view taken along line A_A of Figure 2;

Figure 4 is a schematic view of the structure of the original generator. detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in Figures 1-3, the plastic core 14 of the stator penetrates the mandrel 5 along the center of the shaft, the plastic core 14 and the mandrel 5 are fixed by the hexagon socket screw 12, and the plastic core 14 is wound around the coil winding 4 on the inner side of the plastic core 14. The magnetic ring 1 is provided with a good magnetic permeability. The outer wall of the inner magnetic ring 1 is uniformly fixed with eight inner magnets 9 circumferentially, and a gap is left between the inner magnet 9 and the inner wall of the plastic core 14; magnetic permeability is arranged outside the plastic core 14 A good iron outer magnetic ring 2, the inner wall of the outer magnetic ring 2 is uniformly fixed with eight outer magnets 8 circumferentially, and a gap is left between the outer magnet 8 and the plastic core 14.

The front and rear ends of the inner and outer magnetic rings 1, 2 are respectively sealed by the magnetic ring rear end cover 3 and the front end cover 13, and the rear end cover 3, the front end cover 13 and the outer magnetic ring 2 are fixed by a cross recessed countersunk screw 11 Connected. The mandrel 5 passes through the middle of the rear end cover 3 in the axial direction with a bearing 7 therebetween. The inner end of the mandrel 5 is connected to the front end cover 13 via a bearing 6, and the end of the mandrel 5 and the inner wall of the front end cover 13 are interposed. Wave washer 10.

Taking the application of the invention on the wind power generator as an example, the following description is made as follows: The wind energy drives the wind turbine to rotate the wind turbine, thereby driving the inner and outer magnetic rings of the generator and the inner and outer double-row magnets to synchronously rotate coaxially, and the coil winding Fixed, the magnetic lines of force generated by the rotating inner and outer double-row magnets are cut by the coil windings to generate current. The novel generator of the present invention has an integral magnetic field that surrounds the inside and the outside, thereby generating a stronger current and improving power generation efficiency. The above is only one application of the present invention, and the present invention is not limited to the above-described wind power generator, and can be applied to water flow, air flow, fuel, nuclear fission or other forms of generator.

In addition, the materials used for the inner and outer magnetic rings may also be other materials with good magnetic permeability, such as copper, aluminum, etc.; the transmission between the inner and outer magnetic rings can also be realized by other means; the number of magnet blocks of the magnetic ring wall Can be set according to the actual situation.

Claims

Claim

1. A novel generator having a strong magnetic field, comprising a rotor and a stator, the rotor comprising a magnetic conductive member; the stator comprising a core and a coil winding wound around the core; a core of the stator passing through a mandrel, a core and a core of the stator The shaft phase is fixed, and the mandrel is rotatably coupled with the rotor. The magnetic conductive component of the rotor comprises an inner and outer magnetic ring and a magnet fixed to the magnetic ring. The inner and outer magnetic rings are in the coil winding of the stator and the inner side. The outer double-row magnet is fixed on the inner and outer magnetic rings near the side wall of the stator, and the external force drives the inner and outer magnetic rings to drive the inner and outer double-row magnets to rotate coaxially and coaxially to form an integral magnetic field inside and outside.

2. A novel generator according to claim 1 wherein the core of the stator is made of plastic.

3. The novel generator of claim 1 wherein the inner and outer magnetic rings are made of iron.

4. The novel generator according to claim 1, wherein the front and rear end covers, the front and rear end covers are fixed to the magnetic conductive members of the rotor, and the end cover and the mandrel are rotationally coupled.

5. The novel generator of claim 4 wherein the end cap and the mandrel are rotationally coupled by bearings.

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