A double concentrated winding generator

Abstract

The present invention relates to the technical field of new energy vehicle generators, and discloses a double concentrated winding generator, which solves the technical problem that the generators currently used in the market adopt a structure in which the iron core is provided with many slots and coils are arranged in the slots, which is complicated and laborious to operate, and includes a stator, a rotor and a bearing; the stator includes a stator outer magnet shell ring, an excitation coil, a power generation coil, a stator inner magnet end ring, a pull rod fixing shaft, a stator inner magnet inner ring, a foot, a stator outer magnet end ring, a gasket, a nut, a lead wire, and a stator inner magnet outer claw ring; the stator inner magnet end ring, the stator inner magnet inner ring, and the stator inner magnet outer claw ring constitute the inner magnet; the rotor includes a rotor ring, a screw assembly and a drive connection plate. According to the above technical scheme, the present invention does not need to be provided with many slots with coils embedded in the iron core through a special structure, and only needs two circular concentrated coils and a new structure iron core, which simplifies the operation and greatly saves labor costs.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy automobile generators, and more specifically, to a double concentrated winding generator. Background Art

[0002] Generators are mechanical devices that convert other forms of energy into electrical energy. They were invented by the Frenchman Bixey in 1832. A general generator converts the energy contained in various primary energy sources into mechanical energy through a prime mover, and then converts it into electrical energy by a generator, which is then sent to various places where electricity is used through the transmission and distribution network. Generators are divided into DC generators and AC generators. Their working principles are based on the laws of electromagnetic induction and electromagnetic force, and are widely used in industrial and agricultural production, national defense, science and technology, and daily life.

[0003] The generator currently used in the market adopts a structure in which an iron core is provided with many slots and coils are arranged in the slots. The structure is complex and laborious to operate, and the labor cost is also high. Therefore, there is room for improvement. Summary of the invention

[0004] In view of the technical problem mentioned in the background technology that the generator currently used in the market adopts a structure in which the iron core is provided with many slots and coils are arranged in the slots, which is complex, laborious to operate and has high labor costs, the present invention adopts a special structure, and does not need to provide many slots with coils embedded in the iron core. Only two circular concentrated coils and a new structure iron core are needed, which simplifies the operation and greatly saves labor costs.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A double concentrated winding generator comprises a stator, a rotor and a bearing;

[0007] The stator comprises a stator outer magnetizer housing ring, an excitation coil, a generating coil, a stator inner magnetizer end ring, a pull rod fixing shaft, a stator inner magnetizer inner ring, a foot, a stator outer magnetizer end ring, a gasket, a nut, a lead wire, and a stator inner magnetizer outer claw ring; the stator outer magnetizer housing ring and the stator outer magnetizer end ring constitute an outer magnetizer; the stator inner magnetizer end ring, the stator inner magnetizer inner ring, and the stator inner magnetizer outer claw ring constitute an inner magnetizer;

[0008] The rotor comprises a rotor ring, a screw assembly and a drive connection disk;

[0009] Stator outer magnet housing ring, rotor ring, excitation coil, generating coil, stator inner magnet end ring, screw assembly, bearing, drive connection plate, tie rod fixing shaft, stator inner magnet inner ring, foot, stator outer magnet end ring, gasket, nut, lead wire, outer air gap, inner air gap, stator inner magnet outer claw ring;

[0010] The inner magnetic conductor and the outer magnetic conductor are respectively located inside and outside the generator rotor, and form two air gaps with the rotor, namely an outer air gap and an inner air gap;

[0011] The inner magnetizer includes an inner ring of the stator inner magnetizer, an outer claw ring and an end ring, wherein the outer claw ring is composed of a plurality of claw bars, and equidistant gaps are left between the claw bars; the excitation coil and the generating coil are both wound outside the inner ring of the stator inner magnetizer, and the outer parts of the excitation coil and the generating coil are the outer claw ring of the inner magnetizer, and one end of the excitation coil and the generating coil is open, and the other end is the end ring of the inner magnetizer;

[0012] The outer magnet includes a shell ring and a stator outer magnet end ring. The shell ring is located outside the rotor. The shell ring is connected to the stator outer magnet end ring as a whole. The stator outer magnet end ring is connected to the inner magnet inner ring. A rotor is arranged between the inner magnet and the outer magnet. The rotor is mainly a rotor ring.

[0013] Through the above technical scheme, the stator of the invention (generator) is provided with an inner magnetizer and an outer magnetizer, which are respectively located inside and outside the generator rotor, and two air gaps are formed between the rotor, namely the outer air gap and the inner air gap; the inner magnetizer structure contains an inner ring, an outer claw ring and an end ring, the outer claw ring is composed of a plurality of claw bars, and equidistant gaps are left between the claw bars; two motor stator annular coils are wound around the inner ring of the inner magnetizer, one of which is used as an excitation coil and the other is used as a power generation coil, the outer side of the coil is the outer claw ring of the inner magnetizer, one end of the coil is open, and the other end is the end ring of the inner magnetizer; the outer magnetizer structure contains a shell ring and an end ring, the shell ring is located outside the rotor, the shell ring is connected to the outer magnetizer end ring as a whole, and the outer magnetizer end ring is connected to the inner ring of the inner magnetizer; a rotor is provided between the inner magnetizer and the outer magnetizer, the rotor contains a rotor ring, the rotor ring is a cylindrical structure with a plurality of grooves evenly milled on the inner side, the rotor ring is a magnetic conductive material, and is assembled with the stator through a bearing. The inner magnetic conductor and the outer magnetic conductor are fixed together through a pull rod fixing shaft.

[0014] When the generator is working, a DC current is passed through the excitation coil for excitation. When the rotor rotates, sometimes the raised ribs of the rotor ring gradually approach and align with the outer claws of the inner magnetic conductor, and then move away from each other, and this cycle continues. In the process of the two gradually approaching and aligning, the magnetic resistance of the magnetic circuit in the structure continues to decrease, and the magnetic flux becomes larger. In the process of the two moving away from each other, the magnetic resistance of the magnetic circuit in the structure continues to increase, and the magnetic flux becomes smaller. Therefore, the magnetic flux passing through the generator coil also changes. In this way, an alternating voltage is induced at both ends of the generator coil. As the rotor continues to rotate, the generator coil will continuously output alternating current to complete the power generation work.

[0015] The present invention is further configured as follows: the inner magnetic conductor and the outer magnetic conductor are fixed together by a pull rod fixing shaft, a gasket, and a nut; the drive connecting disk and the rotor ring are connected together by a screw assembly; and the external driving force is transmitted to the motor through the drive connecting disk.

[0016] The present invention is further configured as follows: the rotor ring is a cylindrical structure with a plurality of grooves evenly milled on the inner side, and is assembled with the stator through the bearing.

[0017] The present invention is further configured such that: the rotor ring is made of magnetic conductive material.

[0018] The present invention is further configured as follows: the outer air gap and the inner air gap are configured as 1 mm-10 mm.

[0019] The present invention is further configured as follows: the stator outer magnetizer housing ring and the rotor ring are both annular cylindrical structures with one end open.

[0020] The present invention is further configured such that: the excitation coil and the generating coil together form a coil group.

[0021] The present invention is further configured such that a retaining spring is provided on the peripheral side of the pull rod fixing shaft.

[0022] In summary, the present invention has the following beneficial effects:

[0023] (1) The structure of the generator coil is simplified. The iron core no longer has many wire slots, and there is no need for complicated winding, embedding and wiring processes;

[0024] (2) The core is not made of laminated silicon steel sheets, but is directly formed with magnetic metallurgical powder materials, saving machining workload;

[0025] (3) The annular concentrated coil makes the coil insulation process easier. Resin-molded coils can be used without the need to varnish the coil core, thus reducing environmental pollution.

[0026] (4) This structure is very suitable for making small generators, and the cost is low. For example, in areas with low wind power, many such small wind turbines can be installed side by side to form a "wall". The "wall" can change its angle with the wind direction, which can effectively convert wind energy into electrical energy, and the investment cost is low. People can install and use it in front of, behind, or on the roof of their houses, so that humans can use more wind energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a simplified schematic diagram of the concentrated winding generator in full cross-section;

[0028] Figure 2 for Figure 1 A simplified schematic diagram of the full cross-section view along the AA direction;

[0029] Figure 3 This is a schematic diagram of the working principle and structure of a concentrated winding generator.

[0030] Figure numerals: 1. stator outer magnet housing ring; 2. rotor ring; 3. excitation coil; 4. generating coil; 5. stator inner magnet end ring; 6. screw assembly; 7. bearing; 8. drive connection plate; 9. retaining spring; 10. pull rod fixing shaft; 11. stator inner magnet inner ring; 12. base; 13. stator outer magnet end ring; 14. gasket; 15. nut; 16. lead wire; 17. outer air gap; 18. inner air gap; 19. stator inner magnet outer claw ring. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0032] A double concentrated winding generator, combined Figure 1-Figure 3 It can be seen that it includes a stator, a rotor and a bearing; the stator includes a stator outer magnetic conductor housing ring 1, an excitation coil 3, a generating coil 4, a stator inner magnetic conductor end ring 5, a pull rod fixing shaft 10, a stator inner magnetic conductor inner ring 11, a base 12, a stator outer magnetic conductor end ring 13, a gasket 14, a nut 15, a lead wire 16, and a stator inner magnetic conductor outer claw ring 19; the stator outer magnetic conductor housing ring 1 and the stator outer magnetic conductor end ring 13 constitute an outer magnetic conductor; the stator inner magnetic conductor end ring 5, the stator inner magnetic conductor inner ring 11, and the stator inner magnetic conductor outer claw ring 19 constitute an inner magnetic conductor.

[0033] The rotor comprises a rotor ring 2 , a screw assembly 6 and a drive connection plate 8 .

[0034] Stator outer magnetic body housing ring 1, rotor ring 2, excitation coil 3, generating coil 4, stator inner magnetic body end ring 5, screw assembly 6, bearing 7, drive connecting plate 8, pull rod fixing shaft 10, stator inner magnetic body inner ring 11, base 12, stator outer magnetic body end ring 13, gasket 14, nut 15, lead wire 16, outer air gap 17, inner air gap 18, stator inner magnetic body outer claw ring 19.

[0035] The inner and outer magnetizers are located inside and outside the generator rotor, respectively, and form two air gaps with the rotor, namely, the outer air gap 17 and the inner air gap 18. The inner magnetizer includes the inner ring 11 of the stator inner magnetizer, the outer claw ring 19 and the end ring 5. The outer claw ring 19 is composed of a plurality of claw bars, and there are equidistant gaps between the claw bars. The excitation coil 3 and the generating coil 4 are both wound around the outside of the inner ring 11 of the stator inner magnetizer. The outer part of the excitation coil 3 and the generating coil 4 is the outer claw ring 19 of the inner magnetizer. One end of the excitation coil 3 and the generating coil 4 is open, and the other end is the end ring 5 of the inner magnetizer.

[0036] The outer magnet includes a shell ring 1 and a stator outer magnet end ring 13. The shell ring 1 is located outside the rotor. The shell ring 1 and the stator outer magnet end ring 13 are connected as a whole. The stator outer magnet end ring 13 is connected to the inner magnet inner ring 11. A rotor is arranged between the inner magnet and the outer magnet. The rotor is mainly a rotor ring 2.

[0037] The inner and outer magnetic conductors are fixed together by a pull rod fixing shaft 10, a gasket 14, and a nut 15; the drive connecting disk 8 and the rotor ring 2 are connected together by a screw assembly 6; and the external driving force is transmitted to the motor through the drive connecting disk 8.

[0038] The rotor ring 2 is a cylindrical structure with multiple grooves evenly milled on the inner side, and is assembled with the stator through the bearing 7. The rotor ring 2 is made of magnetic conductive material. The outer air gap 17 and the inner air gap 18 are set to 1mm-10mm. The stator outer magnetic conductive shell ring 1 and the rotor ring 2 are both annular cylindrical structures with one end open. The excitation coil 3 and the generating coil 4 together form a coil group. A retaining spring 9 is provided on the circumferential side of the pull rod fixing shaft 10.

[0039] Combination Figure 3 When the generator is working, a DC current is passed through the excitation coil for excitation. When the rotor rotates, sometimes the raised ribs of the rotor ring gradually approach and align with the outer claws of the inner magnetic conductor, and then move away from each other, and this cycle continues. In the process of the two gradually approaching and aligning, the magnetic resistance of the magnetic circuit in the structure continues to decrease, and the magnetic flux becomes larger. In the process of the two moving away from each other, the magnetic resistance of the magnetic circuit in the structure continues to increase, and the magnetic flux becomes smaller. Therefore, the magnetic flux passing through the generating coil also changes. In this way, an alternating voltage is induced at both ends of the generating coil. As the rotor continues to rotate, the generating coil will continue to output alternating current to complete the power generation work.

[0040] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A double concentrated winding generator, comprising a stator, a rotor and a bearing, characterized in that: The stator comprises a stator outer magnet housing ring (1), an excitation coil (3), a generating coil (4), a stator inner magnet end ring (5), a pull rod fixing shaft (10), a stator inner magnet inner ring (11), a foot (12), a stator outer magnet end ring (13), a gasket (14), a nut (15), a lead wire (16), and a stator inner magnet outer claw ring (19); the stator outer magnet housing ring (1) and the stator outer magnet end ring (13) constitute an outer magnet; the stator inner magnet end ring (5), the stator inner magnet inner ring (11), and the stator inner magnet outer claw ring (19) constitute an inner magnet; The rotor comprises a rotor ring (2), a screw assembly (6) and a drive connection disk (8); Stator outer magnet housing ring (1), rotor ring (2), excitation coil (3), generating coil (4), stator inner magnet end ring (5), screw assembly (6), bearing (7), drive connection plate (8), tie rod fixing shaft (10), stator inner magnet inner ring (11), foot (12), stator outer magnet end ring (13), gasket (14), nut (15), lead wire (16), outer air gap (17), inner air gap (18), stator inner magnet outer claw ring (19); The inner magnetic conductor and the outer magnetic conductor are respectively located inside and outside the generator rotor, and form two air gaps with the rotor, namely an outer air gap (17) and an inner air gap (18); The inner magnetic conductor comprises a stator inner magnetic conductor inner ring (11), an outer claw ring (19) and an end ring (5); the outer claw ring (19) is composed of a plurality of claw bars, with equidistant gaps between the claw bars; the excitation coil (3) and the generating coil (4) are both wound around the outside of the stator inner magnetic conductor inner ring (11); the outside of the excitation coil (3) and the generating coil (4) is the outer claw ring (19) of the inner magnetic conductor; one end of the excitation coil (3) and the generating coil (4) is open, and the other end is the end ring (5) of the inner magnetic conductor; The outer magnet comprises a shell ring (1) and a stator outer magnet end ring (13), the shell ring (1) is located outside the rotor, the shell ring (1) and the stator outer magnet end ring (13) are connected as a whole, and the stator outer magnet end ring (13) is connected to the inner magnet inner ring (11); a rotor is arranged between the inner magnet and the outer magnet, and the rotor is mainly a rotor ring (2); The inner magnetic conductor and the outer magnetic conductor are fixed together via a pull rod fixing shaft (10), a gasket (14), and a nut (15); the drive connection disk (8) and the rotor ring (2) are connected together via a screw assembly (6); and an external driving force is transmitted to the motor via the drive connection disk (8); The rotor ring (2) is a cylindrical structure with a plurality of grooves evenly milled on the inner side, and is assembled with the stator via the bearing (7).

2. A double concentrated winding generator according to claim 1, characterized in that: The rotor ring (2) is made of magnetic conductive material.

3. A double concentrated winding generator according to claim 1, characterized in that: The outer air gap (17) and the inner air gap (18) are set to 1 mm-10 mm.

4. A double concentrated winding generator according to claim 1, characterized in that: The stator outer magnetic conductor housing ring (1) and the rotor ring (2) are both annular cylindrical structures with one end open.

5. The double concentrated winding generator according to claim 1, characterized in that: The excitation coil (3) and the generating coil (4) together form a coil group.

6. A double concentrated winding generator according to claim 1, characterized in that: A retaining spring (9) is provided on the circumferential side of the pull rod fixing shaft (10).

Images