CN209994171U

CN209994171U - Compact excitation motor stator

Info

Publication number: CN209994171U
Application number: CN201920510303.6U
Authority: CN
Inventors: 聂家宽; 顾士芬
Original assignee: Wuxi Xin Ji Li Motor Technology Co Ltd
Current assignee: Wuxi Xin Ji Li Motor Technology Co Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-01-24
Anticipated expiration: 2029-04-15

Abstract

The utility model discloses a compact excitation motor stator, including the iron core main part, the iron core main part is the ring form, and iron core main part inner wall is equipped with a plurality of stator teeth along the circumferencial direction, be equipped with the winding on the stator tooth, the winding includes trapezoidal winding and rectangle winding, trapezoidal winding and rectangle winding spaced cover are on the stator tooth, trapezoidal winding is trapezoidal column hollow structure, trapezoidal winding's trapezoidal bottom surface and iron core main part contact, rectangle winding is rectangle column hollow structure, trapezoidal winding and rectangle winding are provided with 12 respectively, and the full rate of groove of motor can be promoted to this structure by a wide margin, and the motor is compacter, and the volume reduces.

Description

Compact excitation motor stator

Technical Field

The utility model belongs to the technical field of the motor, especially, relate to a compact excitation motor stator.

Background

At present, the stator winding of the excitation motor is embedded with a wire, and a larger gap exists in the slot after the wire is embedded due to the limitation of the structural shape of the slot. The volume and high efficiency are the main development trend of the current motor, and how to improve the slot filling rate of the stator is an effective means for obtaining a small-volume and high-efficiency motor. For a stator made of a full-circle stator core, a stator made of a split stator core (a stator core formed by splicing a plurality of core units in the circumferential direction) or a bar stator core (a stator core formed by bending and joining core bars end to end) is generally considered to have a higher slot filling rate, and therefore, in order to improve the slot filling rate of a motor, many motors are made of split stator cores or bar stator cores.

As shown in fig. 5, in the prior art, after the iron core is inserted, a large gap exists in the slot.

In the application number: CN201811156318.3, the name of 2018-09-28 is: in the stator core and motor patents, a stator core and a motor are disclosed. The stator iron core comprises a stator yoke and a plurality of stator teeth arranged inside the stator yoke, a stator slot is formed between every two adjacent stator teeth, and the end parts of the stator teeth form a first connecting part. The stator core further comprises a plurality of tooth heads and split rings, and second connecting portions matched with the first connecting portions are formed on the tooth heads. A plurality of inserting grooves for inserting the tooth heads are formed in the split ring, the tooth heads are respectively inserted into the inserting grooves and are installed on the fixing portion through the second connecting portion and the first connecting portion in a matched mode.

Disclosure of Invention

The present invention aims to overcome the above-mentioned drawbacks of the prior art and to provide a compact excitation motor stator.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a compact excitation motor stator, includes iron core main part 1, and iron core main part 1 is the ring form, and 1 inner wall of iron core main part is equipped with a plurality of stator teeth 5 along the circumferencial direction, be equipped with the winding on stator teeth 5, the winding includes trapezoidal winding 4 and rectangular winding 3,

trapezoidal winding

4 and 3 spaced cover of rectangular winding are on stator teeth 5, trapezoidal winding 4 is trapezoidal column hollow structure, and trapezoidal bottom surface and iron core main part 1 contact of trapezoidal winding 4, rectangular winding 3 is rectangular column hollow structure, trapezoidal winding 4 and rectangular winding 3 are provided with 12 respectively.

Preferably, a plurality of positioning holes 2 are uniformly formed in the iron core body 1.

More preferably, the stator teeth 5 are integrally formed with the core body 1.

More preferably, the thickness of the bottom winding of the trapezoidal winding 4 is greater than that of the front winding.

More preferably, the stator teeth 5 are provided with a lubricating layer away from the core body 1.

More preferably, the winding is formed by winding an enameled wire, the insulating layer of the enameled wire is a physical foaming insulating layer, and the inner lead of the enameled wire is a copper lead.

More preferably, the core body 1 and the stator teeth 5 are stacked by a plurality of core laminations.

The utility model has the advantages that:

this structure can promote the groove fullness rate of motor by a wide margin, and the motor is compacter, and the volume reduces.

Drawings

Fig. 1 is a schematic structural diagram of a compact excitation motor stator.

Fig. 2 is a schematic perspective view of a compact excitation motor stator.

Fig. 3 is a schematic structural diagram of a trapezoidal framework.

Fig. 4 is a schematic structural view of a rectangular skeleton.

Fig. 5 is a schematic structural diagram of a prior art iron core after wire insertion.

Detailed Description

The technical scheme of the utility model is further described with the attached drawings:

as shown in fig. 1-2, a compact excitation motor stator, including iron core main part 1, iron core main part 1 is the ring form, and iron core main part 1 inner wall is equipped with a plurality of stator teeth 5 along the circumferencial direction, be equipped with the winding on stator teeth 5, the winding includes trapezoidal winding 4 and rectangular winding 3,

trapezoidal winding

4 and 3 spaced cover of rectangular winding are on stator teeth 5, trapezoidal winding 4 is trapezoidal column hollow structure, and trapezoidal bottom surface and the iron core main part 1 contact of trapezoidal winding 4, rectangular winding 3 is rectangular column hollow structure, trapezoidal winding 4 and rectangular winding 3 are provided with 12 respectively.

In this embodiment, preferably, the iron core body 1 is uniformly provided with a plurality of positioning holes 2.

In this embodiment, it is more preferable that the stator teeth 5 are integrally formed with the core body 1.

In this embodiment, it is more preferable that the thickness of the bottom winding of the trapezoidal winding 4 is greater than that of the front winding.

In this embodiment, it is more preferable that the stator teeth 5 are provided with a lubricating layer away from the core body 1.

The lubricating layer can lubricate the rotor core, prolong the service life of the motor and improve the working efficiency of the motor.

In this embodiment, more preferably, the winding is formed by winding an enameled wire, an insulating layer of the enameled wire is a physical foaming insulating layer, and an inner wire of the enameled wire is a copper wire.

In this embodiment, it is more preferable that the core body 1 and the stator teeth 5 are stacked by a plurality of core laminations.

The multi-layer stacking can be used for manufacturing iron cores with different thicknesses according to different requirements.

According to the structural shape of the iron core slot, the shape of the winding in the slot is divided into a trapezoid and a rectangle respectively, and a corresponding plastic framework is manufactured according to requirements. The plastic skeleton is divided into a trapezoidal skeleton and a rectangular skeleton, as shown in fig. 3-4. Framework structure: the middle part is a winding shaft, and two ends of the winding shaft are provided with baffle surfaces. The area of the bottom baffle surface of the trapezoid skeleton is larger than that of the top baffle surface, so that the bottom winding is thick, and a winding with a trapezoid structure is wound. The rectangular framework has the same size and shape of baffle plates at two ends of the winding shaft.

The winding is wound into a trapezoidal winding and a rectangular winding according to the shape of the plastic framework, the trapezoidal winding is assembled firstly when the winding is assembled, and the rectangular winding is assembled after all the trapezoidal windings are assembled. The structure can greatly improve the groove filling rate of the motor, the motor is more compact, and the volume is reduced.

Finally, it should be noted that:

the skilled person can, with reference to the present disclosure, carry out the method and carry out its application, it being expressly noted that all similar substitutes and modifications apparent to the skilled person are deemed to be included within the present invention. The method and application of the present invention have been described in terms of preferred embodiments, and it will be apparent to those skilled in the art that the techniques of the present invention may be practiced and used without departing from the spirit and scope of the present invention by modifying or otherwise appropriately changing or combining the various methods and applications of the present invention.

Claims

1. A compact excitation motor stator characterized in that:

including iron core main part (1), iron core main part (1) is the ring form, and iron core main part (1) inner wall is equipped with a plurality of stator teeth (5) along the circumferencial direction, be equipped with the winding on stator tooth (5), the winding includes trapezoidal winding (4) and rectangular winding (3), trapezoidal winding (4) and rectangular winding (3) spaced cover are on stator tooth (5), trapezoidal winding (4) are trapezoidal column hollow structure, and the trapezoidal bottom surface and iron core main part (1) contact of trapezoidal winding (4), rectangular winding (3) are rectangular column hollow structure, trapezoidal winding (4) and rectangular winding (3) are provided with 12 respectively.

2. A compact excited machine stator as claimed in claim 1, wherein: a plurality of positioning holes (2) are uniformly formed in the iron core main body (1).

3. A compact excited machine stator as claimed in claim 2, wherein: the stator teeth (5) and the iron core main body (1) are integrally formed.

4. A compact excited machine stator as claimed in claim 3, wherein: the thickness of the winding at the bottom of the trapezoidal winding (4) is larger than that of the winding at the front part.

5. A compact excited machine stator as claimed in claim 4, wherein: and the stator teeth (5) are far away from the iron core main body (1) and are provided with lubricating layers.

6. A compact excited machine stator as claimed in claim 5, wherein: the winding is formed by winding an enameled wire, an insulating layer of the enameled wire is a physical foaming insulating layer, and an inner lead of the enameled wire is a copper lead.

7. A compact excited machine stator as claimed in claim 6, wherein: the iron core main body (1) and the stator teeth (5) are formed by stacking a plurality of layers of iron core laminations.