CN214069681U

CN214069681U - Permanent magnet synchronous motor stator

Info

Publication number: CN214069681U
Application number: CN202120017093.4U
Authority: CN
Inventors: 邰崇良
Original assignee: Jiangsu Tingyi Mechanical And Electrical Equipment Co ltd
Current assignee: Jiangsu Tingyi Mechanical And Electrical Equipment Co ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-08-27
Anticipated expiration: 2031-01-06

Abstract

The utility model discloses a permanent magnet synchronous motor stator, including stator core, stator core comprises a plurality of pellet concatenation and seals the loop configuration, the inner wall of pellet corresponds the position and all is equipped with one and is used for around establishing the tooth utmost point of stator coil, the holistic both ends department that the pellet constitutes all is equipped with positioning groove, the embedded solid fixed ring that is equipped with of positioning groove, the solid fixed ring that is located the holistic both ends department that the pellet constitutes sets up the screw rod fixed connection who corresponds the pellet through alternating, and is adjacent constitute between the tooth utmost point and keep away the dead slot. The utility model discloses in, constitute stator core through the pellet concatenation, and all have one on every pellet to be used for around establishing stator coil's tooth utmost point, so when actually around establishing, can be respectively with the winding on every pellet around the back of having made, at the concatenation that carries out stator core, accomplish and rely on the back, the inside solid fixed ring of positioning groove that the rethread is located both ends department fixes, spacing, and the rethread screw rod fastens, can accomplish stator core's equipment.

Description

Permanent magnet synchronous motor stator

Technical Field

The utility model relates to a permanent-magnet machine field, concretely relates to PMSM stator.

Background

The stator of the permanent magnet motor is generally formed by adopting a traditional stator core structure, the stator punching sheet and the iron core are manufactured by a combined type progressive die through one-time stamping, the stator core is suitable for large-scale production, the manufacturing cost is low, but the stator punching sheet and the iron core have the defects that the short-distance distributed winding is adopted, the large-scale production is not facilitated by using an automatic winding machine, the manufacturing cost of the stator winding is further increased, and particularly once the defect occurs in the winding process, the whole stator is scrapped or is wound again, and the great time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PMSM stator 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:

permanent magnet synchronous motor stator, including stator core, stator core comprises a plurality of pellet concatenation and seals the annular structure, the inner wall of pellet corresponds the position and all is equipped with one and is used for around establishing the tooth utmost point of stator coil, the holistic both ends department that the pellet constitutes all is equipped with positioning groove, the embedded solid fixed ring that is equipped with of positioning groove, the solid fixed ring that is located the holistic both ends department that the pellet constitutes sets up at the screw rod fixed connection who corresponds the pellet through alternating, and is adjacent constitute between the tooth utmost point and keep away the dead slot.

Furthermore, the cross section of the core block is of a fan-shaped structure, an embedded block of a T-shaped structure is arranged on one matching surface of the core block, an embedded groove of the T-shaped structure is arranged on the other matching surface of the core block, and the embedded block is matched with the embedded groove.

Furthermore, the fixing ring is located on the inner side of the positioning groove, and two end portions of the screw rod are located in countersunk holes in the fixing ring.

Further, the core block and the tooth pole are integrally formed.

Further, the number of the core blocks and the number of the teeth are even numbers.

Further, the width of the tooth pole is the same as that of the clearance groove.

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

the utility model discloses in, constitute stator core through the pellet concatenation, and all have one on every pellet to be used for around establishing stator coil's tooth utmost point, so when actually around establishing, can be respectively with the winding on every pellet around the back of having made, at the concatenation that carries out stator core, accomplish and rely on the back, the inside solid fixed ring of positioning groove that the rethread is located both ends department fixes, spacing, and the rethread screw rod fastens, can accomplish stator core's equipment.

By adopting the technical scheme, the automatic winding machine is favorable for large-scale production, so that the manufacturing cost of the stator winding is reduced, the defect in the winding process is particularly avoided, the condition that the whole stator is scrapped or is wound again appears, and the production efficiency is greatly improved.

Drawings

Fig. 1 is a front view of a stator of a permanent magnet synchronous motor;

fig. 2 is a schematic structural diagram of a stator of a permanent magnet synchronous motor.

In the figure: 1. a stator core; 11. a core block; 111. an insert block; 112. caulking grooves; 12. a tooth pole; 13. a positioning groove; 14. a fixing ring; 15. a screw; 16. and (5) avoiding a clearance groove.

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 the skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

permanent magnet synchronous motor stator, including stator core 1, stator core 1 constitutes closed annular structure by the concatenation of a plurality of pellet 11, the inner wall of pellet 11 corresponds the position and all is equipped with one and is used for around establishing stator coil's tooth utmost point 12, the holistic both ends department that pellet 11 constitutes all is equipped with positioning groove 13, the embedded solid fixed ring 14 that is equipped with of positioning groove 13, the solid fixed ring 14 that is located the holistic both ends department that pellet 11 constitutes sets up at the screw rod 15 fixed connection that corresponds pellet 11 through alternating, constitute between the adjacent tooth utmost point 12 and keep away dead slot 16.

In this scheme, constitute stator core 1 through 11 concatenations of pellet, and all have one on every pellet 11 and be used for around establishing stator coil's tooth pole 12, so when actually establishing around, can be respectively with the winding on every pellet 11 around the back of making, in the concatenation of carrying out stator core 1, accomplish and rely on the back, the rethread is located the inside solid fixed ring 14 of 13 inside fixed ring of positioning groove at both ends department, it is spacing, rethread screw rod 15 fastens, can accomplish stator core 1's equipment.

Wherein, the cross section of core piece 11 is fan-shaped structure, is equipped with the abaculus 111 of T shape structure on the cooperation face of core piece 11, is equipped with the caulking groove 112 of T shape structure on another cooperation face, and abaculus 111 and caulking groove 112 cooperation adopt the fixed mode of abaculus 111 embedding caulking groove 112, get up core piece 11 cooperation and constitute stator core 1, can realize the location of self to a certain extent, and be difficult for loosely, the equipment of being convenient for.

The fixing ring 14 is located on the inner side of the positioning groove 13, two end portions of the screw 15 are located in countersunk holes in the fixing ring 14, the fixing ring 14 does not protrude out of the positioning groove 13, and the preferable screw 15 does not protrude out of two ends of the positioning groove 13, so that the integral regulation is realized.

The core 11 and the teeth 12 are integrally formed, and the dimensional accuracy and the structural stability are improved.

The number of the core blocks 11 and the number of the teeth 12 are even number, so that two or more windings form a parallel winding for use in later use, and the applicability is improved.

The width of the tooth pole 12 is the same as that of the clearance groove 16, so that winding and installation of the winding are facilitated.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "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.

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 includes the appended claims and their equivalents.

Claims

1. PMSM stator, including stator core (1), its characterized in that: stator core (1) constitutes closed loop configuration by a plurality of pellet (11) concatenation, the inner wall of pellet (11) corresponds the position and all is equipped with one and is used for around tooth utmost point (12) of establishing the stator coil, holistic both ends department that pellet (11) constitute all is equipped with positioning groove (13), the embedded solid fixed ring (14) that are equipped with in positioning groove (13), and solid fixed ring (14) that are located holistic both ends department that pellet (11) constitute are through alternate screw rod (15) fixed connection that sets up corresponding pellet (11), and are adjacent constitute between tooth utmost point (12) and keep away dead slot (16).

2. The permanent magnet synchronous motor stator according to claim 1, characterized in that: the cross section of the core block (11) is of a fan-shaped structure, an embedded block (111) of a T-shaped structure is arranged on one matching surface of the core block (11), an embedded groove (112) of the T-shaped structure is arranged on the other matching surface of the core block (11), and the embedded block (111) is matched with the embedded groove (112).

3. The permanent magnet synchronous motor stator according to claim 2, characterized in that: the fixing ring (14) is located on the inner side of the positioning groove (13), and two end portions of the screw rod (15) are located in countersunk holes in the fixing ring (14).

4. The permanent magnet synchronous motor stator according to claim 1, characterized in that: the core block (11) and the tooth pole (12) are integrally formed.

5. The permanent magnet synchronous motor stator according to claim 1, characterized in that: the number of the core blocks (11) and the number of the teeth (12) are even.

6. The permanent magnet synchronous motor stator according to claim 1, characterized in that: the width of the tooth pole (12) is the same as that of the clearance groove (16).