CN210577981U

CN210577981U - Motor stator structure with overcurrent protection

Info

Publication number: CN210577981U
Application number: CN201921593391.7U
Authority: CN
Inventors: 钱澄; 钱力; 徐建南
Original assignee: Changzhou Zhongtian Magnetic Industry Co Ltd
Current assignee: Changzhou Zhongtian Magnetic Industry Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-05-19
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a motor stator structure with overcurrent protection, including stator core, stator wrapping post, protection architecture, stator punching and second separation piece, stator core's inboard all is fixed with equidistant stator wrapping post, and all is provided with the wire winding clearance between the adjacent stator wrapping post to be provided with protection architecture on the inner wall of wire winding clearance one side, stator core keeps away from all to be fixed with equidistant contact piece on the outer wall of stator wrapping post one side, and all is provided with equidistant circulation groove on the stator core outer wall between the adjacent contact piece, the bottom of circulation inslot portion is provided with the constant head tank, and the inside of constant head tank is fixed with the stator punching, the inside of stator wrapping post all is provided with equidistant stator ventilation hole. The utility model discloses not only simplify protection architecture and improved the security when motor stator uses, reduced the condition that motor stator appears warping, improved the stability when motor stator uses moreover.

Description

Motor stator structure with overcurrent protection

Technical Field

The utility model relates to the technical field of motors, specifically be a motor stator structure with overcurrent protection.

Background

The motor stator is an important component of motors such as a generator and a starter, the motor stator is one of core components of the motor and mainly comprises a stator winding and a stator core, the stator winding is wound in stator teeth of the stator core, the stator can generate a rotating magnetic field after being electrified, and the stator can be matched with a motor rotor to enable the rotor to generate output current.

The stator structure of the motor in the market is various and can basically meet the use requirements of people, but certain defects still exist, and the specific problems are as follows:

(1) when the traditional motor stator structure is used, a certain protection structure is usually adopted to perform overcurrent protection work, but the general protection structure is complex and inconvenient to arrange, so that the popularization is not facilitated;

(2) when the traditional motor stator structure is used, the yoke part of the stator is thin, so that the stator core is easy to deform, and the normal use of the motor is influenced;

(3) the conventional stator structure of the motor usually needs to bear large torsional force when in use, so that the stability of the stator of the motor is not high when in use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motor stator structure with overcurrent protection to it is complicated to provide motor stator structure overcurrent protection structure when using in solving above-mentioned background art, and the stator core appears the phenomenon of deformation and the not high problem of motor stator's stability when using easily usually.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a motor stator structure with overcurrent protection, includes stator core, stator wrapping post, protection architecture, stator punching and second separation piece, stator core's inboard all is fixed with equidistant stator wrapping post, and all is provided with the wire winding clearance between the adjacent stator wrapping post to be provided with protection architecture on the inner wall of wire winding clearance one side, stator core keeps away from all to be fixed with equidistant contact piece on the outer wall of stator wrapping post one side, and all is provided with equidistant circulation groove on the stator core outer wall between the adjacent contact piece, the inside of stator wrapping post all is provided with equidistant stator ventilation hole.

Preferably, the contact piece is internally provided with a filling cavity, a first blocking sheet is fixed on the inner wall of one side of the filling cavity, and a second blocking sheet is fixed on the inner wall of one side of the filling cavity, which is far away from the first blocking sheet.

Preferably, the inside of protection architecture has set gradually stopper, casting groove and has crossed the insulating layer, is provided with the casting groove on the stator core inner wall of wire winding clearance one side.

Preferably, the inner part of the pouring groove is fixed with an overflowing insulating layer, two sides of the top end of the overflowing insulating layer are both fixed with limiting blocks, and one side of each limiting block is fixedly connected with the outer wall of the stator winding post.

Preferably, the bottom of the inside of the circulation groove is provided with a positioning groove, a stator punching sheet is fixed inside the positioning groove, and the stator punching sheet is matched with the positioning groove.

Preferably, a reinforcing groove is formed in the stator core on one side of the second barrier piece, a chromium carbide piece is fixed in the reinforcing groove, one side of the chromium carbide piece is fixedly connected with the first barrier piece, and the other side of the chromium carbide piece is fixedly connected with the second barrier piece.

Compared with the prior art, the beneficial effects of the utility model are that: the motor stator structure with overcurrent protection not only simplifies the protection structure and improves the safety of the motor stator during use, reduces the deformation of the motor stator, but also improves the stability of the motor stator during use;

(1) the limiting block, the pouring groove and the overcurrent insulating layer are arranged, the overcurrent insulating layer in the pouring groove on the inner wall of the stator core isolates current, and meanwhile under the matching action of the limiting block, the protection structure is simplified and the safety of the motor stator in use is improved;

(2) by arranging the circulation groove, the positioning groove and the stator punching sheet, the thickness of the yoke part of the stator is increased by the stator punching sheet in the positioning groove at the bottom of the circulation groove, so that the overall thickness of the stator core is increased, and the condition that the motor stator deforms is reduced;

(3) through being provided with contact piece, filling chamber, first separation piece, reinforcing groove, chromium carbide piece and second separation piece, the inside chromium carbide piece of contact piece has improved motor stator's compressive resistance on the stator core outer wall, and under the combined action of second separation piece and first separation piece, stability when motor stator uses has been improved to the normal work of motor has been guaranteed.

Drawings

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

fig. 2 is a schematic view of the top view of the partial external structure of the present invention;

FIG. 3 is a schematic view of a contact piece cross-sectional enlarged structure of the present invention;

fig. 4 is an enlarged schematic view of the protection structure of the present invention.

In the figure: 1. a stator core; 2. positioning a groove; 3. a contact piece; 4. a stator winding post; 5. a stator vent; 6. a winding gap; 7. a protective structure; 701. a limiting block; 702. pouring a trough; 703. an over-current insulating layer; 8. a circulation tank; 9. stator punching sheets; 10. filling the cavity; 11. a first barrier sheet; 12. a reinforcing groove; 13. a chromium carbide sheet; 14. a second barrier panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a motor stator structure with overcurrent protection comprises a stator core 1, stator winding posts 4, a protection structure 7, stator punching sheets 9 and second barrier sheets 14, wherein the stator winding posts 4 with equal intervals are fixed on the inner side of the stator core 1, winding gaps 6 are arranged between every two adjacent stator winding posts 4, and the protection structure 7 is arranged on the inner wall of one side of each winding gap 6;

a limiting block 701, a pouring groove 702 and an overflowing insulating layer 703 are sequentially arranged inside the protection structure 7, the pouring groove 702 is arranged on the inner wall of the stator core 1 on one side of the winding gap 6, the overflowing insulating layer 703 is fixed inside the pouring groove 702, limiting blocks 701 are fixed on two sides of the top end of the overflowing insulating layer 703, and one side of the limiting block 701 is fixedly connected with the outer wall of the stator winding post 4;

when current passes through the stator core 1, the overcurrent insulating layer 703 inside the pouring groove 702 on the inner wall of the stator core 1 isolates the current, and meanwhile, under the cooperation effect of the limiting block 701, the protection structure is simplified and the safety of the motor stator in use is improved;

the outer walls of the stator core 1 far away from the stator winding posts 4 are all fixed with equally spaced contact pieces 3, the outer walls of the stator core 1 between the adjacent contact pieces 3 are all provided with equally spaced circulation slots 8, and the interior of the stator winding posts 4 is all provided with equally spaced stator vent holes 5;

the bottom end inside the circulation groove 8 is provided with a positioning groove 2, a stator punching sheet 9 is fixed inside the positioning groove 2, and the stator punching sheet 9 is matched with the positioning groove 2 to reduce the deformation of the motor stator during use;

the inside of contact piece 3 is provided with fills chamber 10, and be fixed with first separation blade 11 on the inner wall of filling chamber 10 one side, and fill chamber 10 keep away from being fixed with second separation blade 14 on the inner wall of first separation blade 11 one side, the inside reinforcing groove 12 that is provided with of stator core 1 of second separation blade 14 one side, and the inside of reinforcing groove 12 is fixed with chromium carbide piece 13, one side and first separation blade 11 fixed connection of chromium carbide piece 13, the opposite side and the 14 fixed connection of second separation blade of chromium carbide piece 13, stability when being used for improving motor stator.

The working principle is as follows: when the motor is used, a worker firstly fixes a stator winding on the outer wall of a stator winding post 4 and connects a stator iron core 1 with a motor rotor, in the running process of the motor, heat generated between the motor stator and the motor rotor is dissipated through a stator vent hole 5 to avoid the accumulation of heat between the motor stator and the motor rotor, then, a chromium carbide sheet 13 inside a contact sheet 3 on the outer wall of the stator iron core 1 improves the pressure resistance of the motor stator, and simultaneously, under the combined action of a second blocking sheet 14 and a first blocking sheet 11, the stability of the motor stator in use is improved, thereby ensuring the normal work of the motor, when current passes through the stator iron core 1, an overcurrent insulating layer inside a casting groove 702 on the inner wall of the stator iron core 1 isolates the current, and simultaneously under the matching action of a limiting block 701, the protection structure is simplified and the safety of the motor stator in use is improved, finally, the stator punching sheet 9 inside the positioning groove 2 at the bottom of the circulation groove 8 increases the thickness of a stator yoke part, and further increases the whole thickness of the stator core 1, so that the deformation of the motor stator is reduced, and the work of the motor stator structure with overcurrent protection is completed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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. The utility model provides a motor stator structure with overcurrent protection, includes stator core (1), stator wrapping post (4), protection architecture (7), stator punching (9) and second separation piece (14), its characterized in that: the inboard of stator core (1) all is fixed with equidistant stator wrapping post (4), and all is provided with wire winding clearance (6) between adjacent stator wrapping post (4) to be provided with protection architecture (7) on the inner wall of wire winding clearance (6) one side, stator core (1) is kept away from all is fixed with equidistant contact piece (3) on the outer wall of stator wrapping post (4) one side, and all is provided with equidistant circulation groove (8) on stator core (1) outer wall between adjacent contact piece (3), the inside of stator wrapping post (4) all is provided with equidistant stator ventilation hole (5).

2. The motor stator structure with overcurrent protection as set forth in claim 1, wherein: the contact piece (3) is internally provided with a filling cavity (10), a first blocking sheet (11) is fixed on the inner wall of one side of the filling cavity (10), and a second blocking sheet (14) is fixed on the inner wall of one side, far away from the first blocking sheet (11), of the filling cavity (10).

3. The motor stator structure with overcurrent protection as set forth in claim 1, wherein: a limiting block (701), a pouring groove (702) and an overcurrent insulating layer (703) are sequentially arranged in the protection structure (7), and the pouring groove (702) is formed in the inner wall of the stator core (1) on one side of the winding gap (6).

4. The motor stator structure with overcurrent protection as set forth in claim 3, wherein: an overflowing insulating layer (703) is fixed inside the pouring groove (702), limiting blocks (701) are fixed on two sides of the top end of the overflowing insulating layer (703), and one side of each limiting block (701) is fixedly connected with the outer wall of each stator winding post (4).

5. The motor stator structure with overcurrent protection as set forth in claim 1, wherein: the bottom of the inside of the circulation groove (8) is provided with a positioning groove (2), a stator punching sheet (9) is fixed inside the positioning groove (2), and the stator punching sheet (9) is matched with the positioning groove (2).

6. The motor stator structure with overcurrent protection as set forth in claim 2, wherein: the reinforcing groove (12) is formed in the stator core (1) on one side of the second barrier piece (14), the chromium carbide piece (13) is fixed inside the reinforcing groove (12), one side of the chromium carbide piece (13) is fixedly connected with the first barrier piece (11), and the other side of the chromium carbide piece (13) is fixedly connected with the second barrier piece (14).