CN217984686U

CN217984686U - Uneven magnetic field air gap motor punching sheet

Info

Publication number: CN217984686U
Application number: CN202221766011.7U
Authority: CN
Inventors: 赵明珠; 熊锦龙
Original assignee: Suzhou Zhongshuoyuan Electromechanical Technology Co ltd
Current assignee: Suzhou Zhongshuoyuan Electromechanical Technology Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-12-06
Anticipated expiration: 2032-07-08

Abstract

The utility model belongs to the technical field of the motor punching sheet technique and specifically relates to an inhomogeneous magnetic field air gap motor punching sheet, including stator punching sheet and rotor punching sheet, the rotor punching sheet has been cup jointed to stator punching sheet's inside, the tooth's socket has evenly been seted up on the surface of stator punching sheet, be provided with the piece tooth between the adjacent tooth's socket, the stator has been seted up through the punch combination on the punching sheet, the medial surface through the piece tooth that sets up in the inhomogeneous magnetic field air gap motor punching sheet is circular arc structural design, and the centre of a circle of 6 arc surfaces is not at same dot, and the internal diameter of stator punching sheet is constituteed to the inboard arc surface of 6 piece teeth, and becomes the circular arc component of stator punching sheet for the different centre of a circle to the internal diameter of stator punching sheet adopts and adopts different centre of a circle structural design, thereby can effectually reduce the tooth magnetic effect, eliminate the magnetic shock noise that reduces, and also can make the motor start-up the transportation stop more smoothly, have the soft characteristic of big empty load rotational speed difference, have advantages such as big torque output again.

Description

Uneven magnetic field air gap motor punching sheet

Technical Field

The utility model relates to a motor is towards piece technical field, specifically is an inhomogeneous magnetic field air gap motor towards piece.

Background

The direct current motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, mainly has the function of generating driving torque, is used as a power source of electrical appliances or various machines, is equipment for converting electric energy into mechanical energy, is an indispensable part in a motor, consists of a stator punching sheet and a rotor punching sheet, influences the later-stage use condition of the motor, and has the defects of large tooth magnetic effect, high noise, unsmooth starting and transferring stop and small torque when the existing motor is used, and the defects are directly related to the motor punching sheet.

There is therefore a need for a non-uniform field gap motor lamination that ameliorates the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inhomogeneous magnetic field air gap motor towards piece to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an inhomogeneous magnetic field air gap motor towards piece, includes stator punching and rotor punching, the rotor punching has been cup jointed to stator punching's inside, the tooth's socket has evenly been seted up on stator punching's surface, be provided with the chip tooth between the adjacent tooth's socket, the through-hole group has been seted up on the stator punching, the central point department of putting of rotor punching is equipped with the shaft hole, the magnetic steel groove has evenly been seted up on rotor punching's surface.

As the utility model discloses preferred scheme, 6 have been seted up to the tooth's socket, form 6 piece teeth between the adjacent tooth's socket.

As the utility model discloses preferred scheme, the medial surface of piece tooth is circular arc structural design, and the centre of a circle of 6 arc surfaces is not at same dot.

As the utility model discloses preferred scheme, the internal diameter of stator punching is constituteed to the inboard circular arc surface of 6 slice teeth, and becomes the circular arc constitution that the internal diameter of stator punching is different centre of a circle.

As the utility model discloses preferred scheme, four groups have been seted up to the through-hole group, are located the turning position department of stator punching respectively to every group through-hole group comprises the through-hole that a diameter is big, the through-hole that two diameters are little.

As the preferred scheme of the utility model, be equipped with inhomogeneous air gap structure directly over the magnetic steel groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, medial surface through the piece tooth that sets up in the inhomogeneous magnetic field air gap motor punching sheet is the circular arc structural design, and the centre of a circle of 6 arc surfaces is not at same dot, the internal diameter of stator punching sheet is constituteed to the inboard arc surface of 6 piece teeth, and the internal diameter of becoming the stator punching sheet is the circular arc of different centre of a circle and constitutes, thereby make the internal diameter adoption of stator punching sheet adopt different centre of a circle structural design, thereby can effectually reduce the tooth magnetic effect, eliminate the magnetic shock noise reduction, and also can make the motor start to transport and stop more smoothly, have the soft characteristic of big empty load speed difference, have advantages such as big torque output again, and utilize inhomogeneous air gap, make permanent magnet magnetic field form approximate sinusoidal magnetic field in the air gap, with this reduce various harmonic magnetic fields, reduce the motor noise, reduce the loss that arouses by the harmonic, the motor efficiency is improved, also greatly reduced tooth's socket torque simultaneously, the torque ripple, it is big to have solved the tooth magnetic effect when the motor is using, the pitch, start to transport and stop not just, the shortcoming that the torque is little.

Drawings

FIG. 1 is a schematic view of the appearance structure of the present invention;

fig. 2 is a schematic view of the structure of the present invention.

In the figure: 1. stator punching sheets; 2. punching a rotor sheet; 3. a tooth socket; 4. sheet teeth; 5. a group of through holes; 6. a shaft hole; 7. a magnetic steel groove.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.

In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of making the disclosure more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In an embodiment, please refer to fig. 1-2, the present invention provides a technical solution:

the utility model provides an inhomogeneous magnetic field air gap motor towards piece, includes stator punching 1 and rotor punching 2, and stator punching 1's inside has cup jointed rotor punching 2, and the tooth's socket 3 has evenly been seted up on stator punching 1's surface, is provided with between the adjacent tooth's socket 3 and one tooth 4, has seted up through-hole group 5 on the stator punching 1, and the central point department of putting of rotor punching 2 is equipped with shaft hole 6, and magnetic steel groove 7 has evenly been seted up on rotor punching 2's surface.

In this embodiment, please refer to fig. 2, 6 tooth sockets 3 are formed, 6 sheet teeth 4 are formed between adjacent tooth sockets 3, inner side surfaces of the sheet teeth 4 are designed to be circular arc structures, centers of circles of the 6 circular arc surfaces are not at the same circular point, inner circular arc surfaces of the 6 sheet teeth 4 form an inner diameter of the stator lamination 1, and the inner diameter of the stator lamination 1 is formed by circular arcs with different centers of circles, so that the inner diameter of the stator lamination 1 adopts a design with different center structures, thereby effectively reducing a tooth magnetic effect, eliminating magnetic oscillation, reducing noise, and enabling a motor to start and stop more smoothly, having a soft characteristic of a large air load and rotation speed difference, and having advantages of large torque output, and the like, four groups of through holes are formed in the through hole groups 5, which are respectively located at corner positions of the stator lamination 1, and each group of through holes 5 is formed by a through hole with a large diameter and two through holes with small diameters, an uneven structure is arranged right above the tooth socket 7, and an uneven structure is utilized, so that a permanent magnet magnetic field forms a magnetic field similar to a sine wave magnetic field, thereby reducing various harmonic magnetic fields, reducing noise, reducing loss of the motor, and greatly improving air gap efficiency, and torque, and also reducing torque of the motor.

The utility model discloses work flow: when the non-uniform magnetic field air gap motor punching sheet is used, firstly, the stator punching sheet 1 and the rotor punching sheet 2 are installed in a motor, the stator punching sheet 1 is correspondingly installed on a stator, the rotor punching sheet 2 is correspondingly installed on a rotor, then, the motor is assembled, and finally, the motor is started to operate, the inner side surface of a sheet tooth 4 arranged in the non-uniform magnetic field air gap motor punching sheet is designed to be in a circular arc structure, the circle centers of the 6 circular arc surfaces are not in the same circular point, the inner diameter of the stator punching sheet 1 is formed by the inner side circular arc surfaces of the 6 sheet teeth 4, and is formed by circular arcs with different circle centers, so that the inner diameter of the stator punching sheet 1 adopts different circle center structure design, the tooth magnetic effect can be effectively reduced, the magnetic shock and the noise are reduced, the motor can be started and transported to be stopped more smoothly, the soft characteristic of large idle load rotating speed difference is provided, the advantages of large torque output and the like are provided, and the non-uniform air gap is utilized, so that a magnetic field similar to form a sine wave magnetic field in an air gap, thereby reducing various harmonic magnetic fields, reducing the noise of the motor, reducing the loss caused by harmonics, improving the motor efficiency, greatly reducing the motor torque, and solving the defects of the motor when the motor is started and the motor is stopped.

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

Claims

1. The utility model provides an inhomogeneous magnetic field air gap motor towards piece, includes stator punching (1) and rotor punching (2), its characterized in that: the stator punching sheet (1) is characterized in that a rotor punching sheet (2) is sleeved inside the stator punching sheet (1), tooth grooves (3) are uniformly formed in the surface of the stator punching sheet (1), sheet teeth (4) are arranged between every two adjacent tooth grooves (3), through hole groups (5) are formed in the stator punching sheet (1), a shaft hole (6) is formed in the position of the center of the rotor punching sheet (2), and magnetic steel grooves (7) are uniformly formed in the surface of the rotor punching sheet (2).

2. The non-uniform magnetic field air gap motor punching sheet according to claim 1, characterized in that: 6 tooth grooves (3) are formed, and 6 sheet teeth (4) are formed between every two adjacent tooth grooves (3).

3. The non-uniform magnetic field air gap motor punching sheet according to claim 1, characterized in that: the inner side surfaces of the sheet teeth (4) are designed to be circular arc structures, and the circle centers of the 6 circular arc surfaces are not in the same circular point.

4. The non-uniform magnetic field air gap motor punching sheet according to claim 1, characterized in that: the inner side circular arc surfaces of the 6 sheet teeth (4) form the inner diameter of the stator punching sheet (1), and the inner diameter of the stator punching sheet (1) is formed by circular arcs with different circle centers.

5. The non-uniform magnetic field air gap motor punching sheet according to claim 1, characterized in that: four groups of through hole groups (5) are arranged and are respectively positioned at the corner positions of the stator punching sheets (1), and each group of through hole group (5) is composed of a through hole with a large diameter and two through holes with a small diameter.

6. The non-uniform magnetic field air gap motor punching sheet according to claim 1, characterized in that: an uneven air gap structure is arranged right above the magnetic steel groove (7).