CN219181252U

CN219181252U - Synchronous reluctance motor stator and rotor structure without magnetic field eddy current loss

Info

Publication number: CN219181252U
Application number: CN202320081580.6U
Authority: CN
Inventors: 韩雪飞; 田永刚; 乔建峰; 朱军利
Original assignee: National Energy Group Coal Coking Co Ltd
Current assignee: National Energy Group Coal Coking Co Ltd
Priority date: 2023-01-11
Filing date: 2023-01-11
Publication date: 2023-06-13
Anticipated expiration: 2033-01-11

Abstract

The utility model belongs to the technical field of synchronous reluctance motor accessories, and particularly discloses a stator and rotor structure of a synchronous reluctance motor without magnetic field eddy current loss. The utility model has the beneficial effects that: 1. when the rotor rotates, no magnetic field eddy current loss exists, the structure is reasonable, the rotor is formed by alternately laminating high magnetic conductive materials and non-magnetic insulating materials along the axial direction, and the rotor has strong convexity; 2. the stator and rotor structure is designed more advanced, the magnetic circuit is greatly optimized, and stronger motor electromagnetic torque is generated; 3. the mechanical strength is high, the rotor has no winding and no rotor loss, and the operation efficiency of the motor is improved.

Description

Synchronous reluctance motor stator and rotor structure without magnetic field eddy current loss

Technical Field

The utility model belongs to the technical field of synchronous reluctance motor accessories application, and particularly relates to a stator and rotor structure of a synchronous reluctance motor without magnetic field eddy current loss.

Background

With the continuous innovation and rapid development of the modern industry, the motor is used as a common electromechanical energy conversion device and is spread in various fields of national economy.

The traditional three-phase asynchronous motor has large sound vibration, low service efficiency, lower load, lower service efficiency, low utilization rate and low operation effective interval. The advantages of the permanent magnet motor are paid attention to due to the compact structure, high energy density and high efficiency. The synchronous reluctance motor has low cost, novel rotor structure, larger magnetic field, maximum spindle nose moment output, no magnetic field eddy current loss, long-term development analysis, and can replace the traditional three-phase asynchronous motor, permanent magnet motor and the like.

Conventional three-phase asynchronous motors, although mature in manufacturing technology, have some drawbacks: (1) for example: the sound vibration is large, the squirrel cage structure generates a vortex magnetic field, so that the shaft current of the motor is large, the starting current is large, and the conditions such as impact on a power grid, power jump and the like are often caused; (2) Although the permanent magnet motor has high energy density and high efficiency, the permanent magnet motor needs permanent magnets which are made of high-performance rare earth, and the rare earth has high price; (3) When the permanent magnet is above 80 degrees, demagnetizing phenomenon occurs; (4) The rotor structure of the synchronous reluctance motor is special, the manufacturing cost is low, the demagnetizing phenomenon can not occur, the operation is stable, the synchronous reluctance motor is insensitive to temperature, and the problems of low power factor, high optimal design difficulty and the like exist.

Accordingly, based on the above-mentioned problems, the present utility model provides a stator and rotor structure of a synchronous reluctance motor without magnetic field eddy current loss.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a stator and rotor structure of a synchronous reluctance motor without magnetic field eddy current loss, which solves the technical problems existing in the background technology, namely the problems of large eddy current magnetic field loss, complex squirrel cage structure, low motor utilization rate, demagnetization of a permanent magnet motor and the like of a three-phase asynchronous motor.

The technical scheme is as follows: the utility model provides a stator and rotor structure of a synchronous reluctance motor without magnetic field eddy current loss, which comprises a stator and a rotor, wherein stator grooves and stator clamping teeth which are matched with each other for use are uniformly formed in the inner wall of the stator, rotor shaft mounting through grooves and rotor shaft clamping grooves which are matched with each other for use are formed in the rotor, two groups of V-shaped through grooves are formed in the outer layer of the rotor shaft mounting through grooves in the rotor, and V-shaped ferrites are respectively arranged in the two groups of V-shaped through grooves.

According to the technical scheme, any group of V-shaped through grooves are in a diffusion corrugated shape, and the size from the inner layer to the edge is gradually enlarged.

According to the technical scheme, the space between two adjacent groups of V-shaped through grooves is gradually reduced from the inner layer to the edge.

According to the technical scheme, the rotor shaft is arranged in the outer layer of the through groove, and two groups of isosceles triangle through grooves are arranged between the adjacent V-shaped through grooves.

According to the technical scheme, a rotor positioning through hole is formed in the rotor and located between the rotor shaft installation through groove and the isosceles triangle through groove.

According to the technical scheme, the two groups of V-shaped through grooves are divided into a cross shape at the end faces of the two ends of the rotor, wherein the isosceles triangle through grooves and the rotor positioning through holes are positioned on the symmetrical central line of the cross-shaped end faces.

According to the technical scheme, the outer wall of the stator is uniformly provided with the U-shaped stator fixing groove and the arc-shaped auxiliary limiting groove arranged in any U-shaped stator fixing groove.

Compared with the prior art, the stator and rotor structure of the synchronous reluctance motor without magnetic field eddy current loss has the beneficial effects that: 1. when the rotor rotates, no magnetic field eddy current loss exists, the structure is reasonable, the rotor is formed by alternately laminating high magnetic conductive materials and non-magnetic insulating materials along the axial direction, and the rotor has strong convexity; 2. the stator and rotor structure design (algorithm) is advanced, the magnetic circuit is greatly optimized, and stronger motor electromagnetic torque is generated; 3. the mechanical strength is high, the rotor has no winding and no rotor loss, and the operation efficiency of the motor is improved.

Drawings

In order to more clearly describe the embodiments of the present utility model or the technical solutions in the prior art, the following will be made

The drawings that are required for the embodiments are briefly described, and it is apparent that the drawings in the following description are merely some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort to those of ordinary skill in the art.

FIG. 1 is a schematic diagram of the front view of the stator and rotor structure of a synchronous reluctance motor without magnetic field eddy current loss;

wherein, the reference numerals in the figures are as follows: 100-stator, 101-stator slot, 102-stator latch, 103-U-shaped stator fixed slot, 104-arc auxiliary limit groove, 200-rotor, 201-rotor shaft installation through slot, 202-rotor shaft latch slot, 203-rotor positioning through hole, 204-isosceles triangle through slot, 205-V-shaped through slot and 206-V-shaped ferrite.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.

Example 1

The stator and rotor structure of the synchronous reluctance motor without magnetic field eddy current loss shown in fig. 1 comprises a stator 100 and a rotor 200, wherein stator grooves 101 and stator teeth 102 which are matched with each other for use are uniformly formed in the inner wall of the stator 100, rotor shaft mounting through grooves 201 and rotor shaft clamping grooves 202 which are matched with each other for use are formed in the rotor 200, two groups of V-shaped through grooves 205 are formed in the outer layer of the rotor shaft mounting through grooves 201, and V-shaped ferrites 206 are respectively arranged in the two groups of V-shaped through grooves 205.

The stator and rotor structure of the synchronous reluctance motor without magnetic field eddy current loss of the structure is preferable, any group of V-shaped through grooves 205 are in a diffusion ripple shape, and the size from the inner layer to the edge is gradually enlarged.

The stator and rotor structure of the synchronous reluctance motor without magnetic field eddy current loss of the structure is preferable, and the space between two adjacent V-shaped through grooves 205 is gradually reduced from the inner layer to the edge.

Example two

The stator and rotor structure of the synchronous reluctance motor without magnetic field eddy current loss shown in fig. 1 comprises a stator 100 and a rotor 200, wherein stator grooves 101 and stator teeth 102 which are matched with each other for use are uniformly formed in the inner wall of the stator 100, rotor shaft mounting through grooves 201 and rotor shaft clamping grooves 202 which are matched with each other for use are formed in the rotor 200, two groups of V-shaped through grooves 205 are formed in the outer layer of the rotor shaft mounting through grooves 201, V-shaped ferrites 206 are respectively arranged in the two groups of V-shaped through grooves 205, the outer layer of the rotor shaft mounting through grooves 201 is internally provided with two groups of isosceles triangle through grooves 204 which are arranged between the adjacent V-shaped through grooves 205.

Example III

The stator and rotor structure of the synchronous reluctance motor without magnetic field eddy current loss as shown in fig. 1 comprises a stator 100 and a rotor 200, wherein stator grooves 101 and stator teeth 102 which are matched with each other for use are uniformly formed in the inner wall of the stator 100, rotor shaft mounting through grooves 201 and rotor shaft clamping grooves 202 which are matched with each other for use are formed in the rotor 200, two groups of V-shaped through grooves 205 are formed in the outer layer of the rotor shaft mounting through grooves 201, V-shaped ferrites 206 are respectively arranged in the two groups of V-shaped through grooves 205, two groups of isosceles triangle through grooves 204 are formed in the outer layer of the rotor shaft mounting through grooves 201 and between the adjacent V-shaped through grooves 205, and rotor positioning through holes 203 are formed in the rotor 200 and between the rotor shaft mounting through grooves 201 and the isosceles triangle through grooves 204.

The stator and rotor structure of the synchronous reluctance motor without magnetic field eddy current loss of the structure is preferable, and two groups of V-shaped through grooves 205 are divided into cross shapes on the end faces of two ends of the rotor 200, wherein the isosceles triangle through grooves 204 and the rotor positioning through holes 203 are positioned on the symmetrical central line of the cross-shaped end faces.

In the stator and rotor structure of the synchronous reluctance motor without magnetic field eddy current loss in the first embodiment or the second embodiment or the third embodiment of the present structure, the outer wall of the stator 100 is uniformly provided with a U-shaped stator fixing groove 103, and an arc-shaped auxiliary limit groove 104 disposed in any U-shaped stator fixing groove 103.

The stator and rotor structure of the synchronous reluctance motor without magnetic field eddy current loss in the first embodiment or the second embodiment or the third embodiment of the present structure works according to the working principle or the structural principle:

the synchronous reluctance motor assembled with the stator and rotor structures of the synchronous reluctance motor runs without magnetic field eddy current loss to generate larger magnetic field density, and the rotor with asymmetric magnetic tail end positions is designed to reduce torque pulsation, so that when the motor rotates in the opposite direction, the torque pulsation is increased instead; the stator side of the synchronous reluctance motor is a symmetrical alternating current winding, a circular rotating magnetic field is generated through three-phase sinusoidal current, magnetic force lines of an armature magnetic field are closed along a minimum potential energy, namely a minimum reluctance path, and meanwhile, the rotor side is provided with two symmetrical shafts, namely a symmetrical D shaft with smaller reluctance and a symmetrical shaft Q shaft with larger reluctance, when armature current vectors are overlapped with the D shaft, the magnetic resistance is smaller, and the magnetic force lines can pass through the rotor to be closed.

The stator is formed by laminating silicon steel sheets, the winding is wound on the stator, the rotor silicon steel sheets are laminated on a shaft, and the rotor rotates in the center of the stator.

It should be noted that in this document, terms such as "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. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A synchronous reluctance motor stator and rotor structure without magnetic field eddy current loss is characterized in that: including stator (100), rotor (200), stator (100) inner wall evenly is provided with stator groove (101) that cooperatees and uses, stator latch (102), be provided with rotor shaft installation logical groove (201), rotor shaft draw-in groove (202) that cooperatees and use in rotor (200), and be provided with two sets of V-arrangement logical groove (205) in rotor shaft installation logical groove (201) skin, be provided with V-arrangement ferrite (206) in two sets of V-arrangement logical groove (205) respectively.

2. The synchronous reluctance motor stator and rotor structure without magnetic field eddy current loss according to claim 1, wherein: the V-shaped through grooves (205) of any group are in a diffusion corrugated shape, and the size from the inner layer to the edge is gradually enlarged.

3. The synchronous reluctance motor stator and rotor structure without magnetic field eddy current loss according to claim 1 or 2, wherein: the space between the two adjacent V-shaped through grooves (205) gradually reduces from the inner layer to the edge.

4. A synchronous reluctance motor stator and rotor structure without magnetic field eddy current loss according to claim 3, wherein: the rotor shaft is arranged in the outer layer of the through groove (201), and two groups of isosceles triangle through grooves (204) are arranged between the adjacent V-shaped through grooves (205).

5. The synchronous reluctance motor stator and rotor structure without magnetic field eddy current loss according to claim 4, wherein: rotor (200) is interior, and is located rotor shaft installation through groove (201), isosceles triangle through groove (204) between be provided with rotor location through-hole (203).

6. The synchronous reluctance motor stator and rotor structure without magnetic field eddy current loss according to claim 5, wherein: the two groups of V-shaped through grooves (205) are divided into cross shapes at the end surfaces of the two ends of the rotor (200), wherein the isosceles triangle through grooves (204) and the rotor positioning through holes (203) are positioned on the symmetrical central line of the cross-shaped end surfaces.

7. The synchronous reluctance motor stator and rotor structure without magnetic field eddy current loss according to claim 1, wherein: the outer wall of the stator (100) is uniformly provided with U-shaped stator fixing grooves (103) and arc-shaped auxiliary limiting grooves (104) arranged in any U-shaped stator fixing grooves (103).