CN219041488U - Rotor structure of claw pole motor - Google Patents

Abstract

The utility model discloses a rotor structure of a claw pole motor, which comprises a rotor shaft, wherein a first claw pole is arranged on the surface of one end of the rotor shaft, a second claw pole is arranged on the surface of the other end of the rotor shaft, a rotor iron core is arranged on the surface of the rotor shaft, and a skeleton body is fixedly arranged on the surface of the rotor iron core. Through setting up of claw pole recess and skeleton boss, the possibility of circumferential direction relative motion between skeleton body and claw pole has been eliminated, the rotor shaft is when being rotated by the area, first claw pole and second claw pole also rotate simultaneously along with the rotor shaft, first flabellum and the second flabellum that first claw pole, second claw pole surface set up can drive generator inside air when rotating, make the inside air flow that produces of generator, effectively cool down the heat of generator inside, compare the design at the externally mounted fan blade dish of rotor shaft, the holistic volume that the rotor occupy has been reduced, the holistic volume of generator has been reduced.

Description

Rotor structure of claw pole motor

Technical Field

The utility model relates to the technical field of claw-pole motors, in particular to a rotor structure of a claw-pole motor.

Background

The claw pole motor is divided into a motor and a generator by two permanent magnet synchronous motors with claw-shaped magnetic poles formed by left and right matching of two stator iron core shafts, and the claw pole generator has the characteristics of simple manufacture and low cost and is mainly used for small-sized power generation occasions, in particular to an automobile generator.

The rotor mainly comprises a rotor shaft, pole claws, exciting coils and a collecting ring, a part of the rotor is externally provided with a fan blade disc for heat dissipation, but the whole occupied space of the fan blade disc is larger, the whole occupied volume of the rotor is increased, the whole volume of the generator is increased, meanwhile, the rotor assembled by the existing pole claws and a framework can enable the rotor coils to generate inertia force in the running process, and if the friction force or the binding force between the framework and the claws is insufficient, the possibility of relative motion in the circumferential direction is generated due to the existence of a fit gap, and the broken line fault of an outgoing line can be caused.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a rotor structure of a claw pole motor, which solves the problems in the background art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a rotor structure of claw pole motor, includes the rotor shaft, the one end surface of rotor shaft is provided with first claw pole, the surface of the other end of rotor shaft is provided with the second claw pole, the surface of rotor shaft is provided with rotor core, rotor core's fixed surface installs the skeleton body, the surface winding of skeleton body is provided with the skeleton coil, one side fixed mounting of first claw pole has first flabellum, one side fixed mounting of second claw pole has the second flabellum, the claw pole shaft hole has been seted up to the surface of first claw pole and second claw pole, the claw pole recess has been seted up to the inboard of first claw pole, the through wires hole has been seted up to the bottom surface of claw pole recess, the fixed surface of skeleton body installs the threading pipe.

Preferably, the first claw pole and the second claw pole have the same structure, the first claw pole and the second claw pole are designed by adopting eight pairs of poles, and one claw pole is magnetized into an N pole and the other claw pole is magnetized into an S pole through the press mounting of the first claw pole and the second claw pole on the rotor shaft during operation.

Preferably, the first claw pole and the second claw pole comprise claw pole bases and claw feet, noise reduction chamfer angles are arranged on the side faces of one sides of the claw feet, and by adopting a unilateral progressive arc noise chamfer angle structure, electromagnetic force transition is more gentle, and noise peaks generated by electromagnetic force surge are reduced.

Preferably, the surface of the rotor shaft is provided with a collecting ring, the collecting ring consists of two copper rings insulated from each other, and the collecting ring is arranged at one end of the rotor shaft and insulated from the rotor shaft, the two copper rings are respectively contacted with two electric brushes of the generator, and when the two electric brushes are connected with a direct current power supply, current flows in a framework coil and axial magnetic flux is generated.

Preferably, the surface fixed mounting of skeleton body has the skeleton boss, just the skeleton boss is corresponding setting with claw utmost point recess, can carry out spacingly to the skeleton body through the setting of skeleton boss and claw utmost point recess.

Preferably, the surface of the rotor core is provided with a permanent magnet mounting groove, the permanent magnet is arranged in the permanent magnet mounting groove, and the magnetic leakage phenomenon is greatly reduced by filling the permanent magnet into the permanent magnet mounting groove, so that more magnetic flux can enter the stator winding from the rotor, and the high and low rotating speed of the generator can be improved.

Compared with the prior art, the utility model has the beneficial effects that: this claw pole motor's rotor structure, through claw pole recess and the setting of skeleton boss, with first claw pole, second claw pole and skeleton body mutually assemble, the possibility of circumferential direction relative motion between skeleton body and claw pole has been eliminated, the reliability when rotor operation has been improved, the rotor shaft is when being taken to rotate, first claw pole and second claw pole also rotate along with the rotor shaft simultaneously, first flabellum and the second flabellum that first claw pole, second claw pole surface set up can drive generator inside air when rotating, make the inside air flow that produces of generator, effectively cool down the heat of generator inside, compare the design at the external mounting fan blade dish of rotor shaft, the whole volume that the rotor occupy has been reduced, the holistic volume of generator has been reduced.

Drawings

FIG. 1 is a schematic illustration of the structure of the present utility model;

FIG. 2 is a schematic diagram of an exploded view of the present utility model;

FIG. 3 is a schematic structural view of a part of the structure of the present utility model.

In the figure: 1. a rotor shaft; 2. a first claw pole; 3. a second claw pole; 4. a rotor core; 5. a skeleton body; 6. a bobbin coil; 7. a collecting ring; 8. a first fan blade; 9. a second fan blade; 10. a claw pole shaft hole; 11. claw pole grooves; 12. a threading hole; 13. a skeleton boss; 14. a threading tube; 15. a permanent magnet mounting groove; 16. permanent magnets.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1-3, the utility model provides a rotor structure of a claw-pole motor, which comprises a rotor shaft 1, wherein a first claw-pole 2 is arranged on one end surface of the rotor shaft 1, a second claw-pole 3 is arranged on the other end surface of the rotor shaft 1, the first claw-pole 2 and the second claw-pole 3 have the same structure, the first claw-pole 2 and the second claw-pole 3 adopt eight pairs of pole designs, the first claw-pole 2 and the second claw-pole 3 are pressed on the rotor shaft 1, during operation, one claw-pole is magnetized into an N-pole, the other claw-pole is magnetized into an S-pole, the first claw-pole 2 and the second claw-pole 3 comprise claw-pole seats and claw feet, a chamfer is arranged on one side surface of each claw foot, the electromagnetic force transition is more gentle by adopting a unilateral progressive arc noise chamfer structure, noise peaks generated by electromagnetic force excitation are reduced, the surface of the rotor shaft 1 is provided with a rotor core 4, the surface of the rotor iron core 4 is fixedly provided with a skeleton body 5, the surface of the skeleton body 5 is wound and provided with a skeleton coil 6, the surface of the rotor shaft 1 is provided with a collecting ring 7, the collecting ring 7 consists of two copper rings which are insulated from each other, the collecting ring 7 is arranged at one end of the rotor shaft 1 and is insulated from the rotor shaft 1, the two copper rings are respectively contacted with two electric brushes of a generator, when the two electric brushes are connected with a direct current power supply, current flows through the skeleton coil 6 and generates axial magnetic flux, one side of a first claw pole 2 is fixedly provided with a first fan blade 8, one side of a second claw pole 3 is fixedly provided with a second fan blade 9, the surfaces of the first claw pole 2 and the second claw pole 3 are provided with a claw pole shaft hole 10, the inner side of the first claw pole 2 is provided with a claw pole groove 11, the bottom surface of the claw pole groove 11 is provided with a threading hole 12, the surface of the skeleton body 5 is fixedly provided with a skeleton boss 13, and skeleton boss 13 is corresponding the setting with claw pole recess 11, can carry out spacingly to skeleton body 5 through the setting of skeleton boss 13 and claw pole recess 11, the surface mounting of skeleton body 5 has threading pipe 14, permanent magnet mounting groove 15 has been seted up on the surface of rotor core 4, the inside of permanent magnet mounting groove 15 is provided with permanent magnet 16, through filling permanent magnet 16 into permanent magnet mounting groove 15, the magnetic leakage phenomenon will significantly reduce, can make more magnetic fluxes get into the stator winding from the rotor, thereby the high-low rotational speed of generator will improve, through setting up of claw pole recess 11 and skeleton boss 13, with first claw pole 2, second claw pole 3 and skeleton body 5 mutually assemble, the possibility of the relative motion of circumference direction between skeleton body 5 and claw pole has been eliminated, the reliability when rotor shaft 1 is being taken to rotate, first claw pole 2 and second claw pole 3 also rotate simultaneously along with rotor shaft 1, first blade 8 and second blade 3 surface setting's first blade 8 can drive the generator inside at the rotation while, the generator inside generates the air, the inside-out of the generator is cooled down volume is reduced, the whole design of the generator is compared, the internal volume of the generator is reduced, the whole volume of the generator is cooled, the internal volume of the generator is reduced, the internal volume of the generator is effectively cooled, the generator is cooled, the whole is reduced, the generator is cooled down, the inside the generator is air is cooled down, the inside the generator is air inside the generator, the generator is the inside the generator, and has the generator, and the generator.

When in use: the staff winds skeleton coil 6 at the wire winding portion of skeleton body 5, then with skeleton body 5 fixed mounting on rotor core 4, through claw pole recess 11 and skeleton boss 13's setting, with first claw pole 2, second claw pole 3 and skeleton body 5 mutually assembled, the possibility of the circumferencial direction relative motion between skeleton body 5 and claw pole has been eliminated, the reliability when rotor operation has been improved, rotor shaft 1 is when being taken the rotation, first claw pole 2 and second claw pole 3 also rotate simultaneously along with rotor shaft 1, first flabellum 8 and the second flabellum 9 that first claw pole 2, second claw pole 3 surface set up can drive the inside air of generator when rotating, make the inside air flow that produces of generator, effectively cool down the heat of generator inside, compare the design at rotor shaft 1's externally mounted fan blade dish, the whole volume that the rotor occupied has been reduced, the whole volume of generator has been reduced.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a rotor structure of claw pole motor, includes rotor shaft (1), its characterized in that, the one end surface of rotor shaft (1) is provided with first claw pole (2), the surface of the other end of rotor shaft (1) is provided with second claw pole (3), the surface of rotor shaft (1) is provided with rotor core (4), the fixed surface mounting skeleton body (5) of rotor core (4), the surface winding of skeleton body (5) is provided with skeleton coil (6), one side fixed mounting of first claw pole (2) has first flabellum (8), one side fixed mounting of second claw pole (3) has second flabellum (9), claw pole shaft hole (10) have been seted up on the surface of first claw pole (2) and second claw pole (3), claw pole recess (11) have been seted up to the inboard of first claw pole (2), threading hole (12) have been seted up to the bottom surface mounting of skeleton body (5) has wire pipe (14).

2. The rotor structure of a claw-pole motor according to claim 1, characterized in that the first claw-pole (2) and the second claw-pole (3) have the same structure, and that the first claw-pole (2) and the second claw-pole (3) are of eight-pair design.

3. The rotor structure of a claw-pole motor according to claim 1, wherein the first claw-pole (2) and the second claw-pole (3) comprise a claw-pole seat and a claw-foot, and a noise-reducing chamfer is provided on a side surface of one side of the claw-foot.

4. Rotor structure of a claw-pole motor according to claim 1, characterized in that the surface of the rotor shaft (1) is provided with a slip ring (7), which slip ring (7) consists of two copper rings insulated from each other and is mounted at one end of the rotor shaft (1) and insulated from the rotor shaft (1).

5. The rotor structure of the claw-pole motor according to claim 1, wherein a skeleton boss (13) is fixedly arranged on the surface of the skeleton body (5), and the skeleton boss (13) and the claw-pole groove (11) are correspondingly arranged.

6. The rotor structure of a claw-pole motor according to claim 1, characterized in that a permanent magnet mounting groove (15) is provided on the surface of the rotor core (4), and a permanent magnet (16) is provided inside the permanent magnet mounting groove (15).

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