CN216649340U

CN216649340U - Switched reluctance motor with disc structure

Info

Publication number: CN216649340U
Application number: CN202123093421.8U
Authority: CN
Inventors: 莫岳平; 何志涛; 盛叶帆
Original assignee: Yangzhou University
Current assignee: Yangzhou University
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-31
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses a switched reluctance motor with a disc type structure, which comprises a rotor arranged on the periphery of a stator, wherein the rotor and the stator are both in disc type structures, a winding is arranged on the stator, a shaft sleeve is fixedly arranged at the center of the stator, a rotating shaft is arranged in the shaft sleeve, the rotating shaft is connected with the shaft sleeve through a bearing, the rotor is fixed in a shell, a dust cover is sleeved on the shell, the lower end of the dust cover is connected to the shell, and the upper end of the dust cover is sleeved on the periphery of the shaft sleeve.

Description

Switched reluctance motor with disc structure

Technical Field

The utility model relates to the technical field of switched reluctance motors, in particular to a switched reluctance motor.

Background

The industrial large fan can realize a large amount of airflow horizontal movement, so that the air in the whole workshop is circulated, and the purposes of ventilation and cooling are achieved. The large industrial fan has a strong and reliable power system; the fan control system has the advantages of stability, safety, high efficiency and flexibility, and is unique in all aspects compared with the traditional fan.

In recent years, motors for driving large industrial fans are available on the market, and are either servo direct-drive motors or permanent magnet synchronous motors. The latest technology only uses the technology of the permanent magnet synchronous brushless motor, and essentially, the permanent magnet synchronous brushless motor is a simplified frequency conversion controller, and is gradually applied by some manufacturers due to the energy conservation and high efficiency of the scheme and the reduction of the cost.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a switched reluctance motor with a disc structure, which reduces the cost and improves the efficiency by changing the internal structure.

The purpose of the utility model is realized as follows: the utility model provides a dish formula structure switched reluctance motor, is including setting up the rotor in the stator periphery, rotor and stator are dish formula structure, be equipped with the winding on the stator, the fixed axle sleeve that is provided with in center of stator, be provided with the pivot in the axle sleeve, the warp bearing links to each other between pivot and the axle sleeve, the rotor is fixed in the shell, and the cover is equipped with the dust cover on the shell, and the lower extreme of dust cover is connected on the shell, and the last pot head of dust cover is established in the axle sleeve periphery.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has simple structure, completely arranges the winding on the stator, saves the support cost, enhances the fault-tolerant performance of the motor, simultaneously designs the whole structure into a disc type structure, the transmission efficiency of the motor can be higher, and the disc type structure has the advantages of small volume, light weight and compact structure when being applied to a large-scale industrial fan.

As a further limitation of the present invention, the stator and the rotor both adopt a salient pole type structure. The double-salient-pole structure enables the manufacturing process to be more convenient.

As a further limitation of the utility model, the fan blades are installed on the periphery of the outer shell, a support is arranged on the periphery of the outer shell, and the fan blades are fixedly installed on the support. The design makes the installation of flabellum more convenient.

As a further limitation of the present invention, the bearing is a nylon bearing. The nylon bearing can reduce material loss and further improve transmission efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a top view of the internal structure of the present invention.

The motor comprises a stator 1, a rotor 2, a winding 3, a shaft sleeve 4, a rotating shaft 5, a bearing 6, a shell 7, a dustproof cover 8 and a support 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-2, a switched reluctance motor with a disc structure comprises a rotor 2 arranged at the periphery of a stator 1, wherein the rotor 2 and the stator 1 are both in a disc structure, the stator 1 and the rotor 2 both adopt a salient pole structure, a winding 3 is arranged on the stator 1, a shaft sleeve 4 is fixedly arranged at the center of the stator 1, a rotating shaft 5 is arranged in the shaft sleeve 4, the rotating shaft 5 is connected with the shaft sleeve 4 through a nylon bearing 6, the rotor 2 is fixed in a housing 7, a dust cover 8 is sleeved on the housing 7, the lower end of the dust cover 8 is connected to the housing 7, the upper end of the dust cover 8 is sleeved at the periphery of the shaft sleeve 4, a support 9 is arranged at the periphery of the housing 7, and a fan blade (not shown in the figure) is arranged on the support 9.

The number of teeth of a stator and a rotor 2 of the switched reluctance motor is required to meet the specified number in order to improve the performance of the motor, such as three phases 6/4 and 6/8 or four phases 8/10; in the embodiment, a stator 1 is provided with 12 salient poles, a rotor 2 is provided with 16 salient poles, as shown in fig. 3, A, A1, A2 and A3 form a group, a group of coils are wound in series, and the rest salient poles adopt the same mode to jointly form A, B, C three-phase windings 3; the rotor 2 at the outer side is provided with 16 salient poles, and the rotor 2 is not provided with a winding 3, a permanent magnet, an electric brush and other devices, which are different from the stator 1; the shaft sleeve 4 is fixed with the stator 1 and is upwards connected with a roof or a factory beam; the rotating shaft 5 is fixed with the rotor 2, the outer part of the rotating shaft is fixed with the shell 7 and the fan blade support 9, and when the fan blade cooling device works, the fan blades rotate along with the rotor 2 and the shell 7 to generate wind power, so that the cooling effect is achieved. The number of teeth of the stator and the rotor 2 is corresponding, such as three phases 6/4, 12/8 and the like, which cannot be integral multiples; each magnetic pole on the stator 1 has a turn coil, and the magnetic pole corresponding to the magnetic pole in the radial direction forms a phase stator winding 3; the motor body is made into a disc-shaped appearance structure, the diameter of the motor is larger, the axial length is shorter, and the integral proportion reaches 4:1 or more; the disc type structure can enable the rotary inertia of the motor to be larger, the disc type structure is suitable for being used as a driving motor of a large industrial fan, the size of the fan is larger, the influence of large torque pulsation of the switched reluctance motor can be reduced during rotation, meanwhile, due to the use place and the effect of air flow, the noise defect of the switched reluctance motor is overcome, and the transmission efficiency and the reliability of the whole system are improved.

The overall structure is designed into a disc type structure, firstly, the disc type structure can properly reduce the axial distance during manufacturing, and the use of materials can be saved to a certain extent, and secondly, the disc type structure is a structure which is very easy to manufacture in process, and compared with an axial motor with the same power, the disc type structure of the motor designed in the application has the advantages that the used materials can be greatly reduced on the basis of keeping the electric property; then, the disc structure has good heat dissipation performance, and the Switched Reluctance Motor (SRM) can not generate heat because no winding is arranged on the rotor, so that the application place is very wide; finally, in the aspect of transmission efficiency, the SRM motor adopts the 'magnetic resistance minimum principle' to generate torque so as to achieve the mode of transmitting power, the overall structure of the disc type structure is compact, the air gap of the SRM motor is very small (but friction cannot be generated, so that iron core loss is caused), and the transmission efficiency can be improved to the maximum extent on the basis of following the design formula rule of the motor.

The above description of the embodiments is only intended to facilitate the understanding of the method of the utility model and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a dish formula structure switched reluctance motor, its characterized in that, including setting up rotor (2) in stator (1) periphery, rotor (2) and stator (1) are the dish formula structure, be equipped with winding (3) on stator (1), the fixed axle sleeve (4) that are provided with in center of stator (1), be provided with pivot (5) in axle sleeve (4), link to each other through bearing (6) between pivot (5) and axle sleeve (4), rotor (2) are fixed in shell (7), and the cover is equipped with dust cover (8) on shell (7), and the lower extreme of dust cover (8) is connected on shell (7), and the last pot head of dust cover (8) is established in axle sleeve (4) periphery.

2. Disc-structured switched reluctance motor according to claim 1, wherein both the stator (1) and the rotor (2) adopt a salient pole structure.

3. The switched reluctance motor of disc type structure according to claim 1 or 2, wherein the outer circumference of the housing (7) is installed with fan blades.

4. A switched reluctance motor in a disc structure according to claim 3, wherein the outer casing (7) is provided with a support (9) at its outer circumference, and the blades are fixedly mounted on the support (9).

5. Disc-structured switched reluctance motor according to claim 1 or 2, wherein said bearings (6) are nylon bearings (6).