CN212086042U

CN212086042U - Excitation generator

Info

Publication number: CN212086042U
Application number: CN202020992160.XU
Authority: CN
Inventors: 黄耿正
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-12-04
Anticipated expiration: 2030-06-03

Abstract

The utility model discloses an excitation generator, including generator stator subassembly, generator rotor subassembly, left and right end cover, current converter assembly, generator stator subassembly include motor casing, stator soft magnetic core, stator coil, be equipped with 2n 2k stator slot teeth on the stator soft magnetic core, correspond on each stator slot tooth and imbed a set of stator coil, the stator coil is formed by stator induction coil and stator excitation coil coiling; the generator rotor assembly comprises a rotor central shaft, a rotor soft magnetic core and rotor coils, wherein 2n rotor slot teeth are arranged on the rotor soft magnetic core, a group of rotor coils are correspondingly embedded in each rotor slot tooth, and the rotor coils are formed by winding a rotor induction coil and a rotor excitation coil. After adopting above-mentioned structure, have that structural design is reasonable, the drive power is little, energy conversion is high, the practicality is good, the lorentz force direction that the electric current produced is relatively perpendicular with rotor running direction advantage such as.

Description

Excitation generator

Technical Field

The utility model relates to a generator technical field, especially a can improve excitation generator of generator electric energy conversion rate.

Background

The existing generator mainly comprises a stator, a rotor, an end cover, an electric brush, a base, a bearing and other parts. The stator is composed of a base, a stator core, a coil winding and other structural members for fixing the components. The rotor is composed of rotor iron core, rotor magnetic pole (with magnetic yoke and magnetic pole winding), slip ring shaft and other parts. The stator and the rotor of the engine are connected and assembled through the bearing, the base and the end cover, the rotor can rotate in the stator, a certain exciting current is introduced through the slip ring, the rotor becomes a rotating magnetic field, the stator coil cuts magnetic lines of force, induced current is generated, the induced current is led out through the wiring terminal and is connected in a loop, and then the current is generated.

In the generator, when the wire cuts magnetic lines of force, the electric charge in the wire moving along with the wire generates directional movement under the action of Lorentz force, and the moving electric charge is simultaneously hindered from moving under the action of ampere force. In the process, two phenomena are generated as a result of the action of the moving charges under the action of Lorentz force in a magnetic field, and the conversion from mechanical energy to electric energy is completed. The lorentz force is the force that the moving charges are subjected to in the magnetic field, and the magnitude of the lorentz force is f ═ q | _ vBsin θ, where f is the lorentz force, q is the charge amount of the charged particles, v is the velocity of the charged particles, B is the magnetic induction intensity, and θ is the angle between v and B. The existing generator has the following defects: when the conducting wire cuts magnetic lines of force, the direction of the Lorentz force generated by the induced current is opposite to the direction of the external force to be driven by the rotation of the rotor, which is equivalent to a pair of acting force and reacting force, the external force overcomes the Lorentz force to do work, and in addition, other extra loss is added, the consumption of external force driving energy is large, and the energy conversion rate is low. Therefore, many manufacturers and acquaintances develop and develop the products, but no ideal products are available.

Disclosure of Invention

For overcoming prior art and having the problem that external drive can consume big, energy conversion is low, the utility model aims at providing a driving energy that structural design is reasonable, external force provides is little, energy conversion is high, the practicality is good, the Lorentz force direction that the electric current produced and the relatively vertically excitation generator of generator rotor operation direction.

The utility model provides a technical scheme that above-mentioned technical problem adopted, it includes generator stator subassembly, generator rotor subassembly, left and right ends cover, current converter assembly, generator stator subassembly include motor casing, stator soft magnetic core, stator coil, stator soft magnetic core is equipped with 2n 2k stator slot teeth and fixes on motor casing, correspond on each stator slot tooth and imbed a set of stator coil, the stator coil is formed by a set of stator induction coil and a set of stator excitation coil coiling; the generator rotor assembly comprises a rotor central shaft, a rotor soft magnetic core and rotor coils, wherein 2n rotor slot teeth are arranged on the rotor soft magnetic core and fixed on the rotor central shaft, a group of rotor coils are correspondingly embedded in each rotor slot tooth, each rotor coil is formed by winding a group of rotor induction coils and a group of rotor excitation coils, the rotor central shaft is rotatably arranged on the left end cover and the right end cover, n and k are natural numbers, n is more than or equal to 15, and k/n is less than or equal to 1/15; when external force drives the rotor central shaft to rotate and applies exciting current to the rotor exciting coil and the stator exciting coil, so that one or more rotor slot teeth and the corresponding stator slot teeth are opposite to each other and magnetically attracted, the magnetic lines of force generated by the rotor exciting coil opposite to the rotor exciting coil and the corresponding stator exciting coil are overlapped to form a mutual induction magnetic field loop, the magnetic field loops of the group of magnetic lines of force are respectively expanded, the overlapped magnetic lines of force simultaneously cut the group of rotor induction coils and the group of stator induction coils to generate induced electromotive force and output induced current, and the Lorentz force direction generated by the current is vertical to the moving direction of the rotor; when external force drives the rotor central shaft to rotate and applies exciting current to the rotor exciting coil and the stator exciting coil, so that one or more rotor slot teeth and the corresponding stator slot teeth are opposite to each other and magnetically repulsed, the magnetic force lines generated by the opposite rotor exciting coil and the corresponding stator exciting coil are repelled and offset, the magnetic field loops of the group of magnetic force lines are respectively reduced, and respective self-induction magnetic field loops are formed, the magnetic force lines respectively cut the group of rotor induction coils and the group of stator induction coils to generate induced electromotive force and output induced current, and the Lorentz force direction generated by the current is vertical to the moving direction of the rotor.

The utility model discloses a further scheme, the ratio of rotor groove tooth width and rotor groove width of rotor groove tooth is less than 2, and the ratio of rotor groove tooth width and rotor groove tooth height of rotor groove tooth is less than 1.5.

The utility model discloses a further scheme, the ratio of stator slot tooth width and stator slot width of stator slot tooth is less than 2, and the ratio of stator slot tooth width and stator slot tooth height of stator slot tooth is less than 1.5.

In a further scheme of the utility model, all the stator excitation coils are connected in series and are connected with diodes in series on a loop, and the two ends of the stator excitation coils are correspondingly connected with a stator excitation first lead and a stator excitation second lead; one end of each group of stator induction coils is connected with a stator induction second lead and is connected with a stator induction first lead in parallel through a diode, the other end of each group of stator induction coils is connected with a stator induction fourth lead and is connected with a stator induction third lead in parallel through a diode, the stator induction first lead, the stator induction fourth lead and the stator induction coils form a power supply loop, and the stator induction third lead, the stator induction second lead and the stator induction coils form a power supply loop in the opposite direction.

In a further scheme of the utility model, all the rotor excitation coils are connected in series and are connected with diodes in series on a loop, and two ends of the rotor excitation coils are correspondingly connected with a first brush slip ring and a second brush slip ring; one end of each group of rotor induction coils is connected to the first rotor induction electric brush slip ring, and is connected to the second rotor induction electric brush slip ring in parallel through a diode, the other end of each group of rotor induction coils is connected to the third rotor induction electric brush slip ring, and is connected to the fourth rotor induction electric brush slip ring in parallel through a diode, the first rotor induction electric brush slip ring, the fourth rotor induction electric brush slip ring and the rotor induction coil form a power supply loop, and the third rotor induction electric brush slip ring, the second rotor induction electric brush slip ring and the rotor induction coils form a power supply loop in the opposite direction.

In a further scheme of the utility model, all the stator excitation coils are connected in parallel, and a diode is connected in series on the loop of each stator excitation coil and correspondingly connected with a stator excitation first lead and a stator excitation second lead; one end of each group of stator induction coils is connected with a stator induction second lead and is connected with a stator induction first lead in parallel through a diode, the other end of each group of stator induction coils is connected with a stator induction fourth lead and is connected with a stator induction third lead in parallel through a diode, the stator induction first lead, the stator induction fourth lead and the stator induction coils form a power supply loop, and the stator induction third lead, the stator induction second lead and the stator induction coils form a power supply loop in the opposite direction.

In a further scheme of the utility model, all the rotor excitation coils are connected in parallel, and a diode is connected in series on the loop of each rotor excitation coil and correspondingly connected to the first rotor excitation brush slip ring and the second rotor excitation brush slip ring; one end of each group of rotor induction coils is connected to the first rotor induction electric brush slip ring, and is connected to the second rotor induction electric brush slip ring in parallel through a diode, the other end of each group of rotor induction coils is connected to the third rotor induction electric brush slip ring, and is connected to the fourth rotor induction electric brush slip ring through a diode, the first rotor induction electric brush slip ring, the fourth rotor induction electric brush slip ring and the rotor induction coils form a power supply loop, and the third rotor induction electric brush slip ring, the second rotor induction electric brush slip ring and the rotor induction coils form a power supply loop in the opposite direction.

After adopting above-mentioned structure, compare with prior art and have following advantage: firstly because be equipped with 2n 2k stator slot teeth on the stator soft magnetic core and fix on motor casing, carve a set of stator coil of corresponding embedding through the stator slot on each stator slot tooth, stator coil is formed by a set of stator induction coil and a set of stator excitation coil coiling, be equipped with 2n rotor slot teeth on the rotor soft magnetic core and fix on the rotor center axle, carve a set of rotor coil of corresponding embedding through the rotor slot on each rotor slot tooth, rotor coil is formed by a set of rotor induction coil and a set of rotor excitation coil coiling, can solve the problem that like poles attract each other or opposite poles repel each other when deciding the stator slot tooth and rotor slot tooth quantity, and lead to generator rotor subassembly rotating resistance big. And secondly, when one or more rotor slot teeth are aligned with the corresponding stator slot teeth, the magnetic lines of force generated by the rotor excitation coil and the corresponding stator excitation coil are superposed to form a mutual induction magnetic field loop, the magnetic field is multiplied, the magnetic lines of force simultaneously cut the rotor induction coil and the stator induction coil to generate induced electromotive force and output induced current, the Lorentz force direction generated by the current is vertical to the motion direction of the rotor, the stator slot teeth and other symmetrical stator slot teeth and rotor slot teeth on two sides of the corresponding rotor slot teeth generate balancing force in opposite directions by taking the central shaft of the rotor as the center, no rotation resistance is generated on a rotor assembly of the generator, less magnetic induction interference is generated, and the rotor assembly of the generator can be rotated by inputting smaller external force.

Drawings

Fig. 1 is a schematic view of the exploded structure of the present invention.

Fig. 2 is the utility model discloses generator stator module's decomposition structure schematic diagram.

Fig. 3 is an exploded schematic view of the generator rotor assembly of the present invention.

Fig. 4 is a schematic view of the fitting structure of the present invention.

Fig. 5 is a schematic view of the cross-sectional structure a-a of fig. 4 according to the present invention.

Fig. 6 is the utility model discloses the cooperation schematic diagram of stator soft magnetic core and rotor soft magnetic core.

Fig. 7 is a schematic circuit diagram of the stator field coil and the rotor field coil in series according to the present invention.

Fig. 8 is a schematic circuit diagram of the stator field coil and the rotor field coil of the present invention when they are connected in parallel.

Fig. 9 is a schematic view of the matching structure of the rotor slot tooth and the stator slot tooth in the normal time alignment in the starting working state of the present invention.

Fig. 10 is a schematic view of the matching structure of the present invention when the rotor slot teeth and the stator slot teeth are aligned.

Fig. 11 is a schematic view of the matching structure of the next set of rotor slot teeth and stator slot teeth when they are aligned.

Wherein 1 brush slip ring cover, 2 brush slip ring outer shell, 3 current converter assembly, 4 left end cover, 5 generator stator assembly, 6 generator rotor assembly, 7 right end cover, 51 motor shell, 52 stator soft magnetic core, 53 stator coil, 54 stator slot wedge, 55 stator slot tooth, 56 stator slot, 57 stator slot wedge slot, 58 stator field coil, 59 stator induction coil, 61 bearing, 62 rotor slot wedge, 63 rotor coil, 64 rotor soft magnetic core, 65 rotor center shaft, 66 rotor slot tooth, 67 rotor slot, 68 rotor slot wedge slot, 69 rotor field coil, 70 rotor induction coil, 71 rotor excitation first brush slip ring, 72 rotor induction first brush slip ring, 73 rotor induction second brush slip ring, 74 rotor induction third brush slip ring, 75 rotor induction fourth brush slip ring, 76 rotor excitation second brush slip ring, 81 stator excitation first lead, 82 stator induction first lead, 83 stator induction second lead, 84 stator induction third lead, 85 stator induction fourth lead, 86 stator excitation second lead, 101 and 236 are sequence numbers of stator slot teeth, and 201 and 236 are sequence numbers of rotor slot teeth.

Detailed Description

Fig. 1 to 11 show an embodiment of an excitation generator according to the present invention, which comprises a generator stator assembly 5, a generator rotor assembly 6, left and

right end covers

4, 7, and a current converter assembly 3, the generator stator assembly 5 comprises a motor shell 51, a stator soft magnetic core 52 and stator coils 53, wherein the stator soft magnetic core 52 is provided with 2n +/-2 k stator slot teeth 55 and fixed on the motor shell 51, the open end of each stator slot tooth 55 is correspondingly provided with a stator slot wedge slot 57, each stator slot tooth 55 is correspondingly embedded with a group of stator coils 53 through the matching of a stator slot wedge 54 and the stator slot wedge slot 57, each stator coil 53 is formed by winding a group of stator induction coils 59 and a group of stator excitation coils 58, and the stator induction coils 59 and the stator excitation coils 58 can be separately wound and then combined into a whole or wound together; the generator rotor assembly 6 comprises a rotor central shaft 65, rotor soft magnetic cores 64 and rotor coils 63, wherein 2n rotor slot teeth 66 are arranged on the rotor soft magnetic cores 64 and fixed on the rotor central shaft 65, a rotor slot wedge slot 68 is correspondingly arranged at the open end of each rotor slot tooth 66, a group of rotor coils 63 are correspondingly embedded in each rotor slot tooth 66 through the matching of a rotor slot wedge 62 and the rotor slot wedge slot 68, each rotor coil 63 is formed by winding a group of rotor induction coils 70 and a group of rotor excitation coils 69, the rotor central shaft 65 is rotatably arranged on left and right end covers 4 and 7 through a bearing 61, n and k are natural numbers, n is not less than 15, and k/n is not more than 1/15; the rotating part of the current converter assembly 3 is fixed on the rotor central shaft 65, the fixed part of the current converter assembly 3 is fixed on the left end cover 4 through the brush slip ring outer shell 2, and the brush slip ring cover 1 is fixed on the brush slip ring outer shell 2. The stator soft magnetic core 52 and the rotor soft magnetic core 64 are made of a soft magnetic material.

When the rotor central shaft 65 is driven by external force to rotate and excitation current is applied to the rotor excitation coil 69 and the stator excitation coil 58, so that one or more rotor slot teeth 66 and the corresponding stator slot teeth 55 are oppositely magnetically attracted, magnetic lines of force generated by the oppositely-facing rotor excitation coil 69 and the corresponding stator excitation coil 58 are superposed to form a mutual induction magnetic field loop, the magnetic field loops of the group of magnetic lines of force are respectively expanded, the superposed magnetic lines of force simultaneously cut the group of rotor induction coils 70 and the group of stator induction coils 59 to generate induced electromotive force and output induced current, and the direction of Lorentz force generated by the current is perpendicular to the moving direction of the rotor. When the rotor central shaft 65 is driven by external force to rotate and excitation current is applied to the rotor excitation coil 69 and the stator excitation coil 58, so that one or more rotor slot teeth 66 and the corresponding stator slot teeth 55 are opposite to each other and magnetically repulsed, the magnetic lines of force generated by the opposite rotor excitation coil 69 and the corresponding stator excitation coil 58 are repelled and offset, the magnetic field loops of the group of magnetic lines of force are respectively reduced, and respective self-induced magnetic field loops are formed, the magnetic lines of force respectively cut the group of rotor induction coils 70 and the group of stator induction coils 59 to generate induced electromotive force and output induced current, and the direction of Lorentz force generated by the current is perpendicular to the moving direction of the rotor. In the above-mentioned working condition, a plurality of symmetrical stator slot teeth 55 and rotor slot teeth 66 are arranged on both sides of the stator slot teeth 55 and the corresponding rotor slot teeth 66, and balance forces in opposite directions are generated by taking the rotor central axis 65 as the center.

In order to facilitate the installation of the rotor coil 63 and the determination of the operating parameters, the ratio of the rotor slot tooth width d1 of the rotor slot tooth 66 to the rotor slot tooth width d2 is less than 2, and the ratio of the rotor slot tooth width d1 of the rotor slot tooth 66 to the rotor slot tooth height h1 is less than 1.5. The ratio of the stator slot tooth width d3 to the stator slot tooth width d4 of the stator slot tooth 55 is less than 2, and the ratio of the stator slot tooth width d3 to the stator slot tooth height h2 of the stator slot tooth 55 is less than 1.5. The number of the stator slot teeth 55 is two more than that of the rotor slot teeth 66, so that the problem that the rotor assembly 6 of the generator is unbalanced in stress caused by the attraction of like poles or the repulsion of opposite poles when the number of the stator slot teeth 55 is the same as that of the rotor slot teeth 66 can be solved.

The number of turns of each of the rotor field coil 69 and the rotor induction coil 70 is the same, the number of turns of each of the stator field coil 58 and the stator induction coil 59 is the same, the magnetism of each of the adjacent stator slot teeth 55 is opposite, and the magnetism of each of the adjacent rotor slot teeth 66 is opposite. The magnetic induction intensity generated by each of the stator slot teeth 55 and the rotor slot teeth 66 is the same, the electromotive force generated by the rotor induction coil 70 and the stator induction coil 59 is the same, and the output current is the same.

Fig. 7 is a schematic circuit diagram of the stator field coil and the rotor field coil connected in series according to the present invention, in which all the stator field coils 58 are connected in series and connected in series with a diode on the loop, and the two ends of the diode are correspondingly connected with a first stator field coil lead 81 and a second stator field coil lead 86; one end of each group of stator induction coils 59 is connected with a stator induction second lead 83 and is connected with a stator induction first lead 82 in parallel through a diode, the other end of each group of stator induction coils 59 is connected with a stator induction fourth lead 85 and is connected with a stator induction third lead 84 in parallel through a diode, the stator induction first lead 82, the stator induction fourth lead 85 and the stator induction coils 59 form a power supply loop, and the stator induction third lead 84, the stator induction second lead 83 and the stator induction coils 59 form a power supply loop in the opposite direction. All the rotor excitation coils 69 are connected in series, and are connected in series with diodes on a loop, and two ends of the diodes are correspondingly connected to the rotor excitation first brush slip ring 71 and the rotor excitation second brush slip ring 76 of the current converter assembly 3; one end of each set of rotor induction coil 70 is connected to a rotor induction first brush slip ring 72 of the current converter assembly 3, and is connected in parallel to a rotor induction second brush slip ring 73 of the current converter assembly 3 through a diode, and the other end is connected to a rotor induction third brush slip ring 74 of the current converter assembly 3, and is connected in parallel to a rotor induction fourth brush slip ring 75 of the current converter assembly 3 through a diode, the rotor induction first brush slip ring 72, the rotor induction fourth brush slip ring 75 and the rotor induction coil 70 form a power supply loop, and the rotor induction third brush slip ring 74, the rotor induction second brush slip ring 73 and the rotor induction coil 70 form a power supply loop in opposite directions.

Fig. 8 is a schematic circuit diagram of the stator field coil and the rotor field coil connected in parallel according to the present invention, in which all the stator field coils 58 are connected in parallel, and a diode is connected in series to a loop of each stator field coil 58 and correspondingly connected to a first stator field coil lead 81 and a second stator field coil lead 86; one end of each group of stator induction coils 59 is connected with a stator induction second lead 83 and is connected with a stator induction first lead 82 in parallel through a diode, the other end of each group of stator induction coils 59 is connected with a stator induction fourth lead 85 and is connected with a stator induction third lead 84 in parallel through a diode, the stator induction first lead 82, the stator induction fourth lead 85 and the stator induction coils 59 form a power supply loop, and the stator induction third lead 84, the stator induction second lead 83 and the stator induction coils 59 form a power supply loop in the opposite direction. All the rotor field coils 69 are connected in parallel, and a loop of each rotor field coil 69 is connected with a diode in series and correspondingly connected to the rotor excitation first brush slip ring 71 and the rotor excitation second brush slip ring 76 of the current converter assembly 3; one end of each set of rotor induction coil 70 is connected to the rotor induction first brush slip ring 72 of the current converter assembly 3, and is connected in parallel to the rotor induction second brush slip ring 73 of the current converter assembly 3 through a diode, and the other end is connected to the rotor induction third brush slip ring 74 of the current converter assembly 3, and is connected to the rotor induction fourth brush slip ring 75 of the current converter assembly 3 through a diode, the rotor induction first brush slip ring 72, the rotor induction fourth brush slip ring 75 and the rotor induction coil 70 form a power supply loop, and the rotor induction third brush slip ring 74, the rotor induction second brush slip ring 73 and the rotor induction coil 70 form a power supply loop in the opposite direction.

The working process of the utility model takes 38 stator slot teeth 55 on the stator soft magnetic core 52 and 36 rotor slot teeth 66 on the rotor soft magnetic core 64 as an example, when the rotor central shaft 65 is driven by external force to rotate and the exciting current is applied on the rotor exciting coil 69 and the stator exciting coil 58, and two sets of No. 101 stator slot teeth 55 and the corresponding No. 201 rotor slot teeth 66 and No. 120 stator slot teeth 55 are aligned with the corresponding No. 219 rotor slot teeth 66, as shown in FIG. 9, wherein a set of No. 101 rotor exciting coil 69 and the magnetic lines of force generated by the corresponding No. 201 stator exciting coil 58 are superposed and form a mutual induction magnetic field loop, the magnetic field loop of the set of magnetic lines of force is respectively enlarged, the superposition simultaneously cuts the set of rotor induction coil 70 and the set of stator induction coil 59 to generate induced electromotive force and output induced current, the Lorentz force direction generated by the current is perpendicular to the rotor motion, the other group of 120-rotor exciting coil 69 and the corresponding 219-stator exciting coil 58 generate magnetic lines which are repelled and offset, each magnetic field loop of the group of magnetic lines is reduced, and each self-induction magnetic field loop is formed, the magnetic lines simultaneously cut the group of rotor induction coil 70 and the group of stator induction coil 59 to generate induced electromotive force and output induced current, and the direction of Lorentz force generated by the current is vertical to the moving direction of the rotor; the number 101 stator slot tooth 55 and the corresponding number 201 rotor slot tooth 66, and the number 120 stator slot tooth 55 and the corresponding number 219 rotor slot tooth 66 are symmetrically provided with a plurality of stator slot teeth 55 and rotor slot teeth 66 on two sides, and balance forces in opposite directions are generated by taking the rotor central axis 65 as the center.

When the generator rotor assembly 6 continues to rotate, so that the number 102 stator slot teeth 55 and the corresponding number 202 rotor slot teeth 66 and the number 121 stator slot teeth 55 are aligned with the corresponding number 220 rotor slot teeth 66, as shown in fig. 10, one set of the number 102 rotor excitation coils 69 and the corresponding number 202 stator excitation coils 58 generate magnetic lines of force which are overlapped and form a mutual induction magnetic field loop, the magnetic field loops of the set of magnetic lines of force are respectively expanded, the overlapped magnetic lines of force simultaneously cut the set of the rotor induction coils 70 and the set of the stator induction coils 59 to generate induced electromotive force and output induced current, the direction of lorentz force generated by the current is perpendicular to the moving direction of the rotor, the other set of the number 121 rotor excitation coils 69 and the corresponding number 220 stator excitation coils 58 generate magnetic lines of force which are repelled and offset, the magnetic field loops of the set of magnetic lines of force are respectively reduced, and form respective self induction magnetic field loops, and the magnetic lines of force simultaneously respectively And outputting induced current, wherein the Lorentz force direction generated by the current is vertical to the motion direction of the rotor; the number 102 stator slot tooth 55 and the corresponding number 202 rotor slot tooth 66, and the number 121 stator slot tooth 55 and the corresponding number 220 rotor slot tooth 66 are symmetrically provided with a plurality of stator slot teeth 55 and rotor slot teeth 66 on two sides, and balance forces in opposite directions are generated by taking the rotor central axis 65 as the center.

When the generator rotor assembly 6 continues to rotate, so that the number 103 stator slot teeth 55 and the corresponding number 203 rotor slot teeth 66 and the number 122 stator slot teeth 55 are aligned with the corresponding number 221 rotor slot teeth 66, as shown in fig. 11, one set of the number 103 rotor excitation coils 69 and the corresponding number 203 stator excitation coils 58 generate magnetic lines of force which are overlapped and form a mutual induction magnetic field loop, the magnetic field loops of the set of magnetic lines of force are respectively expanded, the overlapped magnetic lines of force simultaneously cut the set of the rotor induction coils 70 and the set of the stator induction coils 59 to generate induced electromotive force and output induced current, the direction of lorentz force generated by the current is perpendicular to the moving direction of the rotor, the other set of the number 122 rotor excitation coils 69 and the corresponding number 221 stator excitation coils 58 generate magnetic lines of force which are repelled and offset, the magnetic field loops of the set of magnetic lines of force are respectively reduced, and form respective self induction magnetic field loops, and the magnetic lines of force simultaneously respectively And outputting induced current, wherein the Lorentz force direction generated by the current is vertical to the motion direction of the rotor; the number 103 stator slot tooth 55 and the corresponding number 203 rotor slot tooth 66, and the number 122 stator slot tooth 55 and the corresponding number 221 rotor slot tooth 66 are symmetrically provided with a plurality of stator slot teeth 55 and rotor slot teeth 66 on two sides, and balance forces in opposite directions are generated by taking the rotor central axis 65 as the center.

When the generator rotor assembly 6 continues to rotate, and one group of rotor field coils 69 with different phases and the corresponding stator field coils 58 sequentially generate magnetic lines of force according to the rotation sequence to be overlapped and form a mutual induction magnetic field loop, the magnetic field loops of the group of magnetic lines of force are respectively expanded, the superposed magnetic lines of force simultaneously cut the corresponding rotor induction coil 70 and stator induction coil 59 to generate induced electromotive force and output induced current, the other group of rotor excitation coil 69 with different phase and the corresponding stator excitation coil 58 sequentially generate magnetic lines of force to repel and counteract, respectively reduce the magnetic field loop of the group of magnetic lines of force and form respective self-induction magnetic field loop, the magnetic lines of force simultaneously and respectively cut the set of rotor induction coils 70 and the stator induction coils 59 to generate induced electromotive force and output induced current, and the induced electromotive force output by the rotor induction coils 70 and the stator induction coils 59 is continuously converted in sequence in the rotation process of the generator rotor assembly 6. The two sets of stator slot teeth 55 and the corresponding rotor slot teeth 66 are symmetrically provided with a plurality of stator slot teeth 55 and rotor slot teeth 66 on both sides, and balance forces in opposite directions are generated by taking the rotor central shaft 65 as the center.

The above description is only the specific embodiment of the present invention, and is not intended to limit the present invention in any form, and the present invention does not depart from the technical solution of the present invention, and the made simple modification, equivalent change or modification all fall into the protection scope of the present invention.

Claims

1. The utility model provides an excitation generator, includes generator stator subassembly (5), generator rotor subassembly (6), controls end cover (4, 7), current converter assembly (3), characterized by: the generator stator assembly (5) comprises a motor shell (51), a stator soft magnetic core (52) and stator coils (53), wherein 2n +/-2 k stator slot teeth (55) are arranged on the stator soft magnetic core (52) and fixed on the motor shell (51), a group of stator coils (53) are correspondingly embedded in each stator slot tooth (55), and each stator coil (53) is formed by winding a group of stator induction coils (59) and a group of stator excitation coils (58); the generator rotor assembly (6) comprises a rotor central shaft (65), rotor soft magnetic cores (64) and rotor coils (63), wherein 2n rotor slot teeth (66) are arranged on the rotor soft magnetic cores (64) and fixed on the rotor central shaft (65), a group of rotor coils (63) are correspondingly embedded in each rotor slot tooth (66), each rotor coil (63) is formed by winding a group of rotor induction coils (70) and a group of rotor excitation coils (69), the rotor central shaft (65) is rotatably arranged on left and right end covers (4 and 7), n and k are natural numbers, n is not less than 15, and k/n is not less than 1/15; when an external force drives a rotor central shaft (65) to rotate and applies exciting current to a rotor exciting coil (69) and a stator exciting coil (58) to enable one or more rotor slot teeth (66) and corresponding stator slot teeth (55) to be opposite to each other and magnetically attracted, magnetic lines of force generated by the rotor exciting coil (69) opposite to each other and the corresponding stator exciting coil (58) are overlapped to form a mutual induction magnetic field loop, the magnetic field loops of the group of magnetic lines of force are respectively expanded, the overlapped magnetic lines of force simultaneously cut the group of rotor induction coils (70) and the group of stator induction coils (59) to generate induced electromotive force and output induced current, and the Lorentz force direction generated by the current is vertical to the moving direction of the rotor; when the rotor central shaft (65) is driven by external force to rotate and excitation current is applied to the rotor excitation coil (69) and the stator excitation coil (58), so that one or more rotor slot teeth (66) and the corresponding stator slot teeth (55) are opposite to each other and magnetically repulsed, the magnetic force lines generated by the opposite rotor excitation coil (69) and the corresponding stator excitation coil (58) are repulsed and offset, the magnetic field loops of the group of magnetic force lines are respectively reduced, and the self-induced magnetic field loops are formed, the magnetic force lines respectively cut the rotor induction coil (70) and the stator induction coil (59) to generate induced electromotive force and output induced current, and the Lorentz force direction generated by the current is vertical to the moving direction of the rotor.

2. The field generator of claim 1, wherein: the ratio of the rotor slot tooth width (d1) to the rotor slot tooth width (d2) of the rotor slot teeth (66) is less than 2, and the ratio of the rotor slot tooth width (d1) to the rotor slot tooth height (h1) of the rotor slot teeth (66) is less than 1.5.

3. An excited generator according to claim 1 or claim 2 wherein: the ratio of the stator slot tooth width (d3) to the stator slot tooth width (d4) of the stator slot tooth (55) is less than 2, and the ratio of the stator slot tooth width (d3) to the stator slot tooth height (h2) of the stator slot tooth (55) is less than 1.5.

4. The field generator of claim 1, wherein: all the stator excitation coils (58) are connected in series, diodes are connected in series on a loop, and the two ends of the diodes are correspondingly connected with a stator excitation first lead wire (81) and a stator excitation second lead wire (86); one end of each group of stator induction coils (59) is connected with a second stator induction lead (83) and is connected with a first stator induction lead (82) in parallel through a diode, the other end of each group of stator induction coils is connected with a fourth stator induction lead (85) and is connected with a third stator induction lead (84) in parallel through a diode, the first stator induction lead (82), the fourth stator induction lead (85) and the stator induction coils (59) form a power supply loop, and the third stator induction lead (84), the second stator induction lead (83) and the stator induction coils (59) form a power supply loop in the opposite direction.

5. The field generator of claim 4, wherein: all the rotor excitation coils (69) are connected in series, diodes are connected in series on a loop, and two ends of the diodes are correspondingly connected to the rotor excitation first electric brush slip ring (71) and the rotor excitation second electric brush slip ring (76); one end of each group of rotor induction coils (70) is connected to a rotor induction first electric brush slip ring (72), and is connected to a rotor induction second electric brush slip ring (73) in parallel through a diode, the other end of each group of rotor induction coils is connected to a rotor induction third electric brush slip ring (74), and is connected to a rotor induction fourth electric brush slip ring (75) in parallel through a diode, the rotor induction first electric brush slip ring (72), the rotor induction fourth electric brush slip ring (75) and the rotor induction coils (70) form a power supply loop, and the rotor induction third electric brush slip ring (74), the rotor induction second electric brush slip ring (73) and the rotor induction coils (70) form a power supply loop in the opposite direction.

6. The field generator of claim 1, wherein: all the stator exciting coils (58) are connected in parallel, and a loop of each stator exciting coil (58) is connected with a diode in series and correspondingly connected with a stator exciting first lead (81) and a stator exciting second lead (86); one end of each group of stator induction coils (59) is connected with a second stator induction lead (83) and is connected with a first stator induction lead (82) in parallel through a diode, the other end of each group of stator induction coils is connected with a fourth stator induction lead (85) and is connected with a third stator induction lead (84) in parallel through a diode, the first stator induction lead (82), the fourth stator induction lead (85) and the stator induction coils (59) form a power supply loop, and the third stator induction lead (84), the second stator induction lead (83) and the stator induction coils (59) form a power supply loop in the opposite direction.

7. The field generator of claim 6, wherein: all the rotor excitation coils (69) are connected in parallel, and a loop of each rotor excitation coil (69) is connected with a diode in series and correspondingly connected to a rotor excitation first brush slip ring (71) and a rotor excitation second brush slip ring (76); one end of each group of rotor induction coils (70) is connected to a rotor induction first electric brush slip ring (72), and is connected to a rotor induction second electric brush slip ring (73) in parallel through a diode, the other end of each group of rotor induction coils is connected to a rotor induction third electric brush slip ring (74), and is connected to a rotor induction fourth electric brush slip ring (75) through a diode, the rotor induction first electric brush slip ring (72), the rotor induction fourth electric brush slip ring (75) and the rotor induction coils (70) form a power supply loop, and the rotor induction third electric brush slip ring (74), the rotor induction second electric brush slip ring (73) and the rotor induction coils (70) form a power supply loop in the opposite direction.