CN220156293U

CN220156293U - Novel stator core

Info

Publication number: CN220156293U
Application number: CN202321033786.8U
Authority: CN
Inventors: 黄艳; 童谦; 陈铁红; 黄泽玲; 贺昭荣
Original assignee: Xiangtan Electric Manufacturing Co Ltd
Current assignee: Xiangtan Electric Manufacturing Co Ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-12-08
Anticipated expiration: 2033-05-04

Abstract

The utility model discloses a novel stator core, which relates to the technical field of motors and comprises a core body, wherein a plurality of dovetail grooves are formed in the outer circle of the core body along the circumferential direction, stator pressing rings are arranged on two sides of the core body, a plurality of rectangular grooves are formed in the stator pressing rings along the circumferential direction, the rectangular grooves correspond to the dovetail grooves one by one and are communicated with each other, stator buckling pieces are arranged in the dovetail grooves, two sides of each stator buckling piece extend into the rectangular grooves on two sides respectively, the core body and the two pressing rings are connected into a whole through the plurality of stator buckling pieces, machining is not needed on the surface of the outer circle of the core, and eddy current loss is reduced.

Description

Novel stator core

Technical Field

The utility model belongs to the technical field of motors, and particularly relates to a novel stator core.

Background

The common structure of the high-speed motor at present mainly comprises a stator core, wherein the stator core generally comprises ribs, a stator pressing ring and an iron core, the bottom surfaces of the ribs are fixed with the outer circle of the iron core through welding, the end surfaces of two ends of the ribs are fixed with the stator pressing ring through welding, then the outer circle of the stator core is processed, interference installation is carried out on the inner circle of a machine base, the stator core is jointly formed, the surfaces of stator punching sheets forming the outer circle of the iron core are all subjected to painting treatment, the insulation resistance of painted films is high, the stator punching sheets are mutually insulated, and vortex circulation can be prevented.

The production and processing process of the stator core is used for processing the surface of the outer circle of the core, and in the processing process of the surface of the outer circle of the core, the eddy current loss is increased due to the influence of the insulating layer coated on the outer circle of the core.

Disclosure of Invention

The utility model aims to provide a novel stator core, which is used for solving the following technical problems: in the processing process of the outer circle surface of the iron core, the eddy current loss is increased due to the influence of the insulating layer coated on the outer circle of the iron core.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a novel stator core, includes the iron core body, a plurality of dovetail has been seted up along the circumferencial direction to the iron core body outside, iron core body both sides are provided with the stator clamping ring, a plurality of rectangle groove has been seted up along the circumferencial direction to the stator clamping ring, rectangle groove and dovetail one-to-one just link up each other, all be provided with the stator cramp in the dovetail, stator cramp both sides extend to both sides rectangular channel respectively.

Further, the iron core body is an axial section formed by laminating a plurality of stator punching sheets.

Further, the section of the stator buckle piece is ladder-shaped.

Further, the number of the dovetail grooves is 18.

The utility model has the beneficial effects that:

the stator clamping rings are arranged on two sides of the iron core body, the dovetail grooves formed in the iron core body are communicated with the rectangular grooves of the stator clamping rings on two sides in an aligned mode, each stator buckling piece is placed in the dovetail groove, the end portions of the two ends of each stator buckling piece extend into the rectangular grooves on two sides, the iron core body and the two clamping rings are connected into a whole through the stator buckling pieces, machining of the outer circle surface of the iron core is not needed, and eddy current loss is reduced.

Drawings

The utility model is further described below with reference to the accompanying drawings.

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

FIG. 2 is a schematic view of a conventional stator core structure;

fig. 3 is a schematic top view of the core body according to the present utility model;

FIG. 4 is a schematic view of a stator clamping ring according to the present utility model;

fig. 5 is a schematic structural view of a stator buckle plate according to the present utility model.

In the figure: 1. an iron core body; 11. a dovetail groove; 2. a stator pressing ring; 21. rectangular grooves; 3. stator cramps.

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.

Referring to fig. 1-5, the present utility model is a novel stator core, which comprises a core body 1 (the core body 1 is made by stacking a plurality of stator punching sheets), a plurality of dovetail slots 11 are formed in the outer portion of the core body 1 along the circumferential direction, stator pressing rings 2 are arranged at two sides of the core body 1, a plurality of rectangular slots 21 are formed in the stator pressing rings 2 along the circumferential direction, the rectangular slots 21 and the dovetail slots 11 are in one-to-one correspondence and are communicated with each other, (the rectangular slots 21 on the two stator pressing rings 2 are communicated with the dovetail slots 11, the two rectangular slots 21 and one dovetail slot 11 together form an installation channel of the stator buckling sheet 3), stator buckling sheets 3 are arranged in the dovetail slots 11, two ends of the stator buckling sheets 3 extend into the rectangular slots 21 at two sides respectively, buckling bodies of one stator buckling sheet 3 are accommodated in each dovetail slot 11, two ends of each stator buckling sheet 3 are respectively fixed in the rectangular slots 21 communicated at two sides of the dovetail slots 11, the two stator pressing rings 2 and the core body 1 are connected into a whole by using the plurality of stator buckling sheets 3, the outermost side of the core 1 is not required to be processed, and the loss of the outer circle of the core is reduced.

In one embodiment, referring to fig. 1, 3, 4 and 5, the core body 1 is an axial section formed by stacking a plurality of stator laminations, and the core body 1 is formed by stacking a plurality of stator laminations, and the size of the core body 1 is determined by the number of stacked stator laminations.

In one embodiment, referring to fig. 1, 3, 4 and 5, the stator lamination 3 has a trapezoidal cross section, and is matched with the cross sections of the dovetail groove 11 and the rectangular groove 21, so that the two stator clamping rings 2 are welded and fixed with the core body 1.

In one embodiment, referring to FIGS. 1 and 3, the number of dovetail slots 11 is 18.

The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims

1. The utility model provides a novel stator core, includes iron core body (1), its characterized in that, a plurality of dovetail (11) have been seted up along the circumferencial direction to iron core body (1) outside, iron core body (1) both sides are provided with stator clamping ring (2), a plurality of rectangle groove (21) have been seted up along the circumferencial direction to stator clamping ring (2), rectangle groove (21) and dovetail (11) one-to-one just link up each other, all be provided with stator cramp (3) in dovetail (11), stator cramp (3) both sides extend respectively to in both sides rectangle groove (21).

2. A novel stator core according to claim 1, characterized in that the core body (1) is an axial segment formed by lamination of a plurality of stator laminations.

3. A novel stator core according to claim 1, characterized in that the stator laminations (3) are trapezoidal in cross section.

4. A novel stator core according to claim 1, characterized in that the number of dovetail grooves (11) is 18.