CN214958923U

CN214958923U - Electric generator

Info

Publication number: CN214958923U
Application number: CN202120116432.4U
Authority: CN
Inventors: 余传柏; 赵春荣
Original assignee: Guilin University of Technology
Current assignee: Guilin University of Technology
Priority date: 2021-01-17
Filing date: 2021-01-17
Publication date: 2021-11-30
Anticipated expiration: 2031-01-17

Abstract

The utility model discloses a generator. The structure is as follows: the rotor comprises N stators, N +1 rotors and a rotating shaft, wherein the stators mainly comprise stator fixing plates and a plurality of stator windings, and each stator winding consists of an iron core and an insulated wire spirally wound on the outer surface of the iron core; the rotor comprises a turntable and a plurality of permanent magnets, wherein the rotor permanent magnets are uniformly distributed on the outer edge of the turntable, the permanent magnets are the same as the stator core in shape and correspond to the stator core in position; the two rotors are positioned on two sides of one stator in parallel and are linked with the rotor turntable through the rotating shaft to cut magnetic lines of force and generate induced electromotive force. The utility model discloses a generator of brand-new structure, technology is simple and convenient, but the modular combination design, and when efficiency was higher, simple structure, economize the material, the iron core generates heat fewly, has solved the complicated and not high problem of efficiency of current generator structure.

Description

Electric generator

Technical Field

The utility model relates to a generator field specifically says so and relates to a generator.

Background

The generator is mechanical equipment which converts energy in other forms into electric energy, is driven by a steam turbine, a diesel engine or other power machines, converts energy generated by airflow, fuel combustion or nuclear fission into mechanical energy and transmits the mechanical energy to the generator, and then the mechanical energy is converted into electric energy by the generator through an electromagnetic effect. The types of generators are various, and are classified into synchronous generators, asynchronous generators, single-phase generators, three-phase generators, and the like in principle.

A conventional generator is mainly composed of a centrally located rotor, a stator disposed around the rotor, end caps, and bearings. The stator is a static part of the generator and consists of a stator core, a stator winding, a base and the like. The stator core is fixed on the machine base and is formed by punching and laminating silicon steel sheets with insulating layers on the surfaces, the inner circle of the stator core is provided with evenly distributed slots for the electric wire windings of the stator, and the coils formed by the insulating wire windings are respectively embedded in the stator inner slots according to a certain rule. The rotor is a rotating part of the generator and consists of a rotor iron core, a rotor winding, a rotating shaft and the like. The rotor core is a part of a magnetic circuit of the generator, is formed by laminating silicon steel sheets with rotor slots uniformly distributed on the outer circumference and is fixed on the rotating shaft. And a rotor winding is placed in a wire slot of the rotor core.

Taking a traditional three-phase generator as an example, in order to generate a cutting magnetic field, different phase windings are enabled to cut magnetic lines of force in turn, only one phase of a stator winding and a rotor winding is in a working state, only part of coil windings can effectively cut the magnetic lines of force in unit time, and the power density ratio and the efficiency of the generator are relatively low; and the traditional generator is relatively complex in manufacturing process, relatively more in material consumption, and relatively large and relatively heavy in the whole generator.

Therefore, it is highly desirable to design and manufacture a generator with simple structure, simple process, material saving and high efficiency for efficient utilization and application development.

Disclosure of Invention

The utility model discloses what need solve is that traditional generator manufacturing process is more complicated, and the consumptive material is more, and the whole great, heavier problem of generator provides a brand-new structure generator.

The utility model discloses a following technical scheme solves above-mentioned problem:

a generator comprises N stators and N +1 rotors, wherein each stator comprises a stator fixing plate and a stator winding; each stator winding consists of an iron core and an insulated conducting wire spirally wound on the outer surface of the iron core; the iron core of each stator winding is vertically fixed with the surface of the stator fixing plate; all the stator windings are distributed on the stator fixing plate in a circumferential equidistant manner by taking the rotating shaft as the center; the stator windings on each stator are connected in series, parallel or combination of series and parallel.

The rotor comprises a rotor turntable and a permanent magnet; the plane of the rotor turnplate is parallel to the plane of the stator fixing plate, and the two rotor turnplates are respectively positioned on two sides of the stator fixing plate in parallel; the center of each rotary table penetrates through and is fixed on the rotary shaft, the center line of the rotary shaft is superposed with the perpendicular bisector of the rotary table, and the rotary shaft is linked with the rotary table; the inner side surface of each rotor turntable is provided with the same number of permanent magnets at intervals, and the N poles and the S poles of the permanent magnets are distributed at intervals; the permanent magnets are distributed on the rotor turntable at equal intervals in a circumferential shape by taking the rotating shaft as the center; the permanent magnets on the rotor turntables on the two sides correspond to each other in position, one of the inner side ends of the two permanent magnets at the same corresponding position is an N pole, and the other permanent magnet at the same corresponding position is an S pole, so that a rotatable axial magnetic field is formed.

In the above aspect, the number of stator windings is preferably R, where R > 3.

In the above aspect, it is preferable that the core in the stator winding has a cylindrical, square-cylindrical, or sector-section cylindrical shape.

In the above scheme, the number of the permanent magnets in the rotor turntable is preferably equal to or 2 times of the number of the stator windings.

In the above solution, it is preferable that the permanent magnet in the rotor is in conformity with the stator in size and shape.

In the above scheme, it is preferable that the distance between the rotor turntables on both sides and the stator core is equal, and the distance between the rotor turntables and the stator core is adjustable.

The utility model has the advantages and effects that:

1. the utility model discloses well generator's simple structure, and do not need a large amount of silicon steel sheets, do not have rotor winding, manufacturing process is more simple and convenient, and power output's designability is strong.

2. Further, the utility model discloses well rotor utilizes a plurality of permanent magnet, does not have rotor winding to generate heat, reduces the energy consumption, and the whole work of all permanent magnets produces stable magnetic field, is favorable to magnetic line of force cutting process, makes generator efficiency obtain improving.

3. Further, the utility model discloses well stator winding is all in the magnetic field that the rotor permanent magnet formed, and stator core and winding can high-efficient cutting magnetic line of force, improve generator output efficiency.

4. Further, the utility model discloses the number of well rotor and stator, size, rotor permanent magnet, stator core and winding etc. all can design, can be better adapted to different application scenes.

5. Further, the utility model discloses a generator can take the modularization equipment in batch production, and production efficiency is higher.

Drawings

Fig. 1 is a structural schematic diagram of the generator of the present invention.

The labels in the figure are: 1.2-stator winding; 2.2-rotor permanent magnet.

Fig. 2 is a schematic view of a three-dimensional structure of the generator of the present invention.

The labels in the figure are: 1-a stator; 1.1-stator fixing plate; 1.2-stator winding; 2-a rotor; 2.1-rotor turntable; 2.2-rotor permanent magnets; 3-a rotating shaft.

Fig. 3 is a schematic diagram of the modular combination design of the generator of the present invention.

The labels in the figure are: 1-a stator; 2-a rotor; 3-a rotating shaft; 4-heat dissipation fan.

Detailed Description

Example (b):

the technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

A generator is described by taking the case of stator windings connected in series as an example. As shown in fig. 1 and 2, the generator comprises a stator 1 and a rotor 2, wherein one stator 1 and two rotors 2 form a core component of the generator (fig. 1), and can also be modularly combined into N stators and N +1 rotors (fig. 3).

The stator 1 mainly comprises a stator fixing plate 1.1 and a plurality of stator windings 1.2; each stator winding 1.2 is composed of a cylindrical iron core and a spirally wound insulated wire; the iron core of each stator winding 1.2 is vertically fixed with the surface of the stator fixing plate 1.1; all the stator windings 1.2 are circumferentially and equidistantly distributed on the stator fixing plate 1.1 by taking the rotating shaft 3 as the center; the stator windings 1.2 of each stator 1 are connected in series, and during working, the stator winding leads generate alternating current.

The rotor 2 comprises a rotor turntable 2.1 and a plurality of permanent magnets 2.2; the two rotors 2 are parallel and opposite to one stator 1, the plane of the rotor turntable 2.1 is parallel to the plane of the stator fixing plate 1.1, and the two rotor turntables 2.1 are respectively positioned at two sides of the stator fixing plate 1.1; the center of each rotating disc 2.1 penetrates through and is fixed on the rotating shaft 3, and the center line of the rotating shaft 3 is superposed with the perpendicular bisector of the rotor rotating disc 2.1; the inner side surface of each rotor turntable 2.1 is provided with permanent magnets 2.2 with the same number at intervals, and the N poles and the S poles of the permanent magnets are distributed at intervals; the permanent magnets 2.2 are distributed on the rotor turntable 2.1 at equal intervals in a circumferential shape by taking the rotating shaft 3 as a center; the positions of the permanent magnets 2.2 on the rotor turntables 2.1 at the two sides are in one-to-one correspondence, and the polarities of the two permanent magnets 2.2 corresponding to the two ends of the same stator winding 1.2 are opposite, so that an axial magnetic field is formed, and the corresponding stator winding 1.2 in the middle is positioned in the center of the magnetic field; the rotating shaft 3 is fixedly connected with the two rotor turntables 2.1, so that the rotor turntables 2.1 can stably rotate under the driving of the rotating shaft 3.

The whole generator consists of N stators 1 and N +1 rotors 2, a stator fixing plate 1.1 and a plurality of stator windings 1.2 form a disc structure, and the rotors 2 consist of rotor turntables 2.1 and permanent magnets 2.2 to form a disc structure and are positioned on two sides of the stator disc structure in parallel; the stator 1 and the rotor 2 are both centered on a rotating shaft 3, and a rotor turntable 2.1 is fixedly linked with the rotating shaft 3; meanwhile, the heat radiation fan 4 is connected with the rotating shaft 3, and when the heat radiation fan rotates, a small amount of heat generated by the stator winding 1.2 conducting wire can be taken away by air flow; the rotation of the rotating shaft 3 is provided by mechanical motion generated by wind energy, water energy, chemical energy and the like, and the rotor turntable 2.1 synchronously generates rotary motion; meanwhile, the corresponding permanent magnet 2.2 on the rotor turntable 2.1 forms a rotating axial magnetic field, in the rotating motion process of the rotor 2, the stator winding 1.2 cuts magnetic lines of force to form induced electromotive force, each stator winding 1.2 lead is equivalent to a battery, electromotive force required by design is obtained, and then subsequent related fields are applied.

The embodiments of the present invention have been described in detail, but the present invention is not limited to the embodiments, and those skilled in the art can make many equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are included in the scope of the present application.

Claims

1. An electrical generator, characterized by: the stator comprises N stators (1) and N +1 rotors (2), wherein the stators (1) comprise stator fixing plates (1.1) and stator windings (1.2); each stator winding (1.2) is composed of an iron core and an insulated conducting wire spirally wound on the outer surface of the iron core; the iron core of each stator winding (1.2) is vertically fixed with the surface of the stator fixing plate (1.1); all the stator windings (1.2) are distributed on the stator fixing plate (1.1) in a circumferential equidistant manner by taking the rotating shaft (3) as the center; the stator windings (1.2) on each stator (1) are connected in series, parallel or series-parallel combination;

the rotor (2) comprises a rotor turntable (2.1) and a permanent magnet (2.2); the plane of the rotor turntable (2.1) is parallel to the plane of the stator fixing plate (1.1), and the two rotor turntables (2.1) are respectively positioned on the two sides of the stator fixing plate (1.1) in parallel; the center of each rotary table (2.1) penetrates through and is fixed on the rotating shaft (3), the center line of the rotating shaft (3) is superposed with the perpendicular bisector of the rotor rotary table (2.1), and the rotating shaft is linked with the rotary tables; the inner side surface of each rotor turntable (2.1) is provided with the same number of permanent magnets (2.2) at intervals, and the N poles and the S poles of the permanent magnets are distributed at intervals; the permanent magnets (2.2) are distributed on the rotor turntable (2.1) at equal intervals in a circumferential shape by taking the rotating shaft (3) as the center; the permanent magnets on the rotor turntables (2.1) at the two sides are corresponding in position, one permanent magnet (2.2) at the corresponding same position is an N pole, and the other permanent magnet is an S pole.

2. A generator according to claim 1, wherein: the number of the stator windings (1.2) is R, and R is more than 3.

3. A generator according to claim 1, wherein: the iron core in the stator winding (1.2) is in a shape of a cylinder, a square column or a sector section column.

4. A generator according to claim 1, wherein: the number of the permanent magnets (2.2) in the rotor turntable (2.1) is the same as or 2 times of that of the stator windings (1.2).

5. A generator according to claim 1, wherein: the permanent magnet (2.2) in the rotor (2) is a cylinder, a square column or a sector section column, and is consistent with the size and the shape of the iron core of the stator (1).

6. A generator according to claim 1, wherein: the distance between the rotor turntables (2.1) on the two sides and the iron core of the stator (1) is equal, and the distance between the rotor turntables (2.1) and the iron core of the stator (1) is adjustable.