CN220122666U

CN220122666U - Rotor groove insulation structure

Info

Publication number: CN220122666U
Application number: CN202321663323.XU
Authority: CN
Inventors: 徐阿兰
Original assignee: Yizhu Motor Suzhou Co ltd
Current assignee: Yizhu Motor Suzhou Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-12-01
Anticipated expiration: 2033-06-28

Abstract

The utility model belongs to the technical field of motor rotors, and particularly relates to a rotor groove insulation structure which comprises a main shaft, wherein a rotor iron core is fixed on the main shaft, a winding groove is formed in the circumference of the rotor iron core, the rotor iron core is externally wrapped with groove insulation, and a coil is wound in the winding groove. The outer circle of the rotor core is wrapped by the slot insulation, the insulation is embedded into the slot of the rotor core, and then the winding is performed, so that the enamelled wire is prevented from being wound between the slot insulation and the rotor core, and the problem of poor high voltage is avoided; after the wire is wound, the groove is insulated and cut, and then the enameled wire is covered and wrapped, so that the creepage distance/electric gap between the enameled wire and the iron core can be ensured to meet the safety requirements.

Description

Rotor groove insulation structure

Technical Field

The utility model belongs to the technical field of motor rotors, and particularly relates to a rotor groove insulation structure.

Background

The motor rotor is also a rotating component in the motor. The motor consists of a rotor and a stator, and is a conversion device for realizing electric energy and mechanical energy and electric energy. The motor rotor is divided into a motor rotor and a generator rotor;

as shown in fig. 5 to 6, the slot insulation of the conventional rotor is that the coils 44 are wound outside the rotor core slots 33 after being inserted into the rotor core 22 of the main shaft 11 one by one, and when the rotor core with a higher slot filling rate is encountered, the creepage distance/electric gap from the winding to the core does not meet the safety requirements when the conventional slot insulation is performed;

if the conventional slot insulation width is widened, the enameled wire may be wound between the slot insulation and the rotor core during winding, resulting in poor high voltage.

In order to solve the above problems, the present utility model provides a rotor slot insulation structure.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a rotor groove insulation structure, which has the characteristics of preventing defective products and ensuring safety.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rotor groove insulation system, includes the main shaft, be fixed with the rotor core on the main shaft, the wire winding groove has been seted up to the circumference in the rotor core, the outside parcel of rotor core has the groove insulation, the coiling has the coil in the wire winding groove.

As a preferred embodiment of the rotor slot insulating structure of the present utility model, the slot insulator wraps the annular surface of the rotor core and the winding slot at the same time, and the coil is wound in the winding slot through the slot insulator.

As a preferred technical scheme of the rotor slot insulation structure, the winding slot is covered and wrapped on the outer side, close to the rotor core, of the winding slot after the winding of the coil.

As a preferred technical solution of the rotor slot insulation structure of the present utility model, the part of the coil located in the winding slot after winding and the slot insulation are extruded in the winding slot.

Compared with the prior art, the utility model has the beneficial effects that: the outer circle of the rotor core is wrapped by the slot insulation, the insulation is embedded into the slot of the rotor core, and then the winding is performed, so that the enamelled wire is prevented from being wound between the slot insulation and the rotor core, and the problem of poor high voltage is avoided; after the wire is wound, the groove is insulated and cut, and then the enameled wire is covered and wrapped, so that the creepage distance/electric gap between the enameled wire and the iron core can be ensured to meet the safety requirements.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

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

FIG. 2 is a schematic view of the structure of the rotor-wrapping slot of FIG. 1 after insulation in accordance with the present utility model;

FIG. 3 is a schematic view of the structure of the coil of FIG. 2 according to the present utility model;

FIG. 4 is a schematic diagram of the structure of the slot insulation wrapped coil of FIG. 3 according to the present utility model;

in the figure: 1. a main shaft; 2. a rotor; 3. a wire winding groove; 4. slot insulation; 5. coil

FIG. 5 is a schematic diagram of a prior art rotor coil structure prior to winding;

FIG. 6 is a schematic diagram of the prior art coil of FIG. 5 after being wound;

in the figure: 11. a main shaft; 22. a rotor; 33. a wire winding groove; 44. a coil.

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.

Examples

Referring to fig. 1-4, the present utility model provides the following technical solutions: the rotor slot insulation structure comprises a main shaft 1, wherein a rotor iron core 2 is fixed on the main shaft 1, a winding slot 3 is formed in the circumference of the rotor iron core 2, a slot insulation 4 is wrapped outside the rotor iron core 2, a coil 5 is wound in the winding slot 3, and the outer circle of the rotor iron core is wrapped by the slot insulation in the embodiment for winding, so that the enameled wire is prevented from being wound between the slot insulation and the rotor iron core, and the problem of poor high voltage is avoided; after the wire is wound, the groove is insulated and cut, and then the enameled wire is covered and wrapped, so that the creepage distance/electric gap between the enameled wire and the iron core can be ensured to meet the safety requirements.

Specifically, the slot insulator 4 surrounds both the annular surface of the rotor core 2 and the winding slot 3, and the coil 5 is wound in the winding slot 3 through the slot insulator 4.

Specifically, the winding grooves 3 are covered and wrapped on the outer side of the rotor core 2 after the winding of the coil 5.

Specifically, the portion of the coil 5 located in the winding slot 3 after winding and the slot insulator 4 are pressed in the winding slot 3.

The working principle and the using flow of the utility model are as follows: as shown in fig. 1 to 5, the slot insulation 4 is wrapped outside the conventional rotor core 2 and the winding slot 3, then the winding of the coil 5 is performed on the winding slot 3 through the slot insulation 4, and after the winding is completed, the winding slot 3 wrapped outside the rotor core 2 is cut and wrapped outside the coil 5.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a rotor groove insulation system which characterized in that: including main shaft (1), be fixed with rotor core (2) on main shaft (1), around seting up wire winding groove (3) in rotor core (2), rotor core (2) outside parcel has groove insulation (4), coiling has coil (5) in wire winding groove (3).

2. A rotor slot insulating structure as claimed in claim 1, wherein: the slot insulator (4) simultaneously wraps the annular surface of the rotor core (2) and the winding slot (3), and the coil (5) is wound in the winding slot (3) through the slot insulator (4).

3. A rotor slot insulating structure as claimed in claim 1, wherein: the winding groove (3) is used for covering and wrapping the outer side, close to the rotor core (2), of the coil (5) after winding.

4. A rotor slot insulating structure as claimed in claim 1, wherein: the part of the coil (5) which is positioned in the winding groove (3) after winding and the groove insulation (4) are extruded in the winding groove (3).