CN219227311U

CN219227311U - Split type stator coil insulation structure

Info

Publication number: CN219227311U
Application number: CN202222969374.7U
Authority: CN
Inventors: 杨良才; 赵福才; 李红文; 罗英; 何超飞
Original assignee: Zhongshan Midis Power Technology Co ltd
Current assignee: Zhongshan Midis Power Technology Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-06-20
Anticipated expiration: 2032-11-08

Abstract

The utility model relates to the technical field of motors, in particular to a split stator coil insulation structure, which comprises a framework, wherein the framework consists of a plurality of bone plates; the inner wall of the framework is provided with a plurality of split iron core units which are connected end to end; a cavity is formed between adjacent bone plates, an inter-phase insulating sheet is arranged in the middle of the cavity, and two sides of the cavity are separated into two wire slots through the inter-phase insulating sheet; the stator has the advantages that the insulation effect between two adjacent iron core split coils is good, the creepage distance is long, the risk that copper wires are exposed to the outside from the slots is avoided, the stator assembly quality is improved, and the assembly efficiency is improved.

Description

Split type stator coil insulation structure

Technical Field

The utility model relates to the technical field of motors, in particular to a split stator coil insulation structure.

Background

The conventional stator punching sheets are mostly processed by adopting integral punching blanking, and the material utilization rate is low, so that more motor manufacturers try to adopt the stator punching sheets with split structures.

In order to reduce the production cost of the motor and improve the utilization rate of materials, a split stator core structure is one of the viable measures, but the split core has some problems in the aspect of fastening assembly. For example, the "combined stator with insulating skeleton" technology disclosed in patent CN201922161512.7 has the following problems:

(1) There is no insulating layer between two adjacent iron core split coils, and the insulating effect is very poor.

(2) The creepage distance at the bottom of the groove is short, and the stator is easy to generate grounding.

(3) Gaps are formed between two adjacent iron core split coils, copper wires are easy to expose from the gaps, and the risk of damaging the copper wires is high.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings of the prior art and provide a split stator coil insulation structure.

The utility model relates to a split stator coil insulation structure, which comprises a framework, wherein the framework consists of a plurality of bone plates; the inner wall of the framework is provided with a plurality of split iron core units which are connected end to end;

a cavity is formed between adjacent bone plates, an interphase insulating sheet is arranged in the middle of the cavity, and two sides of the cavity are separated into two wire slots through the interphase insulating sheet.

Further, in the cavity, an outer clamping groove and an inner clamping groove are respectively arranged at the outer end and the inner end between adjacent skeletons; and a interphase insulating sheet clamping groove cavity is arranged between the outer clamping groove and the inner clamping groove. When the interphase insulating sheet clamping groove is used, interphase insulating sheets are clamped in the interphase insulating sheet clamping groove cavity, and wire grooves are formed in two sides of the interphase insulating sheets.

Further, split iron core coil units are arranged on the framework.

Further, one end of the split iron core unit is provided with a dovetail groove, and the other end of the split iron core unit is provided with a dovetail clamping head; and the dovetail clamping heads of one split iron core unit are clamped into the dovetail grooves of the other split iron core unit to form an inner ring layer of the split iron core unit.

After the structure is adopted, the utility model has the beneficial effects that: the split stator coil insulation structure provided by the utility model has the advantages that the insulation effect between two adjacent iron core split coils is good, the creepage distance is long, the risk that copper wires are exposed from the slots to the outside is avoided, the stator assembly quality is improved, and the assembly efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate and together with the description serve to explain the utility model, if necessary:

FIG. 1 is a schematic illustration of an interphase insulating material assembly of the present utility model;

fig. 2 is an enlarged view of a portion a of fig. 1;

FIG. 3 is a schematic diagram of the assembly structure of the present utility model;

FIG. 4 is a schematic cross-sectional view of the present utility model;

fig. 5 is a schematic view of the assembly of adjacent components of the present utility model.

Fig. 6 is an enlarged view of a portion B of fig. 5.

Reference numerals illustrate:

a framework-1; bone plate-11; an outer clamping groove-111; inner clamping groove-112; a slot cavity-113 of the interphase insulating sheet; interphase insulating sheet-2; split iron core unit-3; dovetail clip-31; dovetail groove-32; a wire slot-4; split iron core coil units-5; cavity-6.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. 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.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1 to 6, the split stator coil insulation structure according to the present embodiment includes a frame 1, where the frame 1 is composed of a plurality of bone plates 11; the inner wall of the framework 1 is provided with a plurality of split iron core units 3 which are connected end to end;

a cavity 6 is formed between the adjacent bone plates 11, an interphase insulating sheet 2 is arranged in the middle of the cavity 6, and two sides of the cavity 6 are separated into two wire slots 4 through the interphase insulating sheet 2.

Further, in the cavity 6, an outer clamping groove 111 and an inner clamping groove 112 are respectively arranged at the outer end and the inner end between the adjacent skeletons 1; an inter-phase insulating sheet clamping groove cavity 113 is arranged between the outer clamping groove 111 and the inner clamping groove 112. When in use, the interphase insulating sheet clamping groove cavity 113 is internally clamped with the interphase insulating sheet 2, and the two sides of the interphase insulating sheet 2 form the wire grooves 4.

Further, a split iron core coil unit 5 is provided on the skeleton 1.

Further, one end of the split iron core unit 3 is provided with a dovetail groove 32, and the other end is provided with a dovetail clamping head 31; adjacent split iron core units 3, wherein a dovetail clamping head of one split iron core unit 3 is clamped into a dovetail groove of the other split iron core unit 3 to form an inner ring layer of the split iron core unit.

The working principle of the utility model is as follows:

the stator structure in this design and traditional motor is different: in this design the skeleton 1 consists of several bone plates 11. However, the inter-phase insulating sheets 2 are provided in the cavities 6 between the adjacent bone plates 11.

In order to facilitate the installation of the interphase insulating sheet 2, an outer clamping groove 111 and an inner clamping groove 112 are respectively arranged at the outer end and the inner end between the adjacent frameworks 1; the inter-phase insulating sheet clamping groove cavity 113 is formed by the groove cavity formed between the outer clamping groove 111 and the inner clamping groove 112, the inter-phase insulating sheet 2 is matched with the inter-phase insulating sheet clamping groove cavity 113, and the inter-phase insulating sheet 2 is clamped in the inter-phase insulating sheet clamping groove cavity 113.

Therefore, the slots formed by the adjacent split iron core coil units are of a closed structure, and copper wires are prevented from being exposed out of the slots. Meanwhile, as the interphase insulating sheet 2 (prepared from insulating materials) is adopted, the interphase insulating sheet 2 is rectangular in shape, so that the risk of turn-to-turn generation of the stator is avoided.

Due to the adoption of the wire slot 4 with the closed structure, the copper wires are not exposed out of the slot, and the stator is not at risk of turn-to-turn, so that the stator assembly quality and the assembly efficiency are high during installation.

The beneficial effects of the utility model are as follows:

(1) The slots formed by the adjacent split iron core coil units are of a closed structure, so that copper wires are prevented from being exposed out of the slots.

(2) The adjacent split iron core coil units can be used for inserting insulating materials, and the risk of turn-to-turn generation of the stator is avoided.

(3) The stator assembly quality is improved.

(4) Simple structure, assembly efficiency is high.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a split stator coil insulation structure which characterized in that: comprises a framework, wherein the framework consists of a plurality of bone plates; the inner wall of the framework is provided with a plurality of split iron core units which are connected end to end;

2. A split stator coil insulation structure as claimed in claim 1, wherein: an outer clamping groove and an inner clamping groove are respectively arranged at the outer end and the inner end between adjacent frameworks in the cavity; a interphase insulating sheet clamping groove cavity is arranged between the outer clamping groove and the inner clamping groove; interphase insulating sheet clamping groove cavities are internally provided with interphase insulating sheets in a clamping mode, and wire grooves are formed in two sides of each interphase insulating sheet.

3. A split stator coil insulation structure as claimed in claim 1, wherein: the framework is provided with split iron core coil units.

4. A split stator coil insulation structure as claimed in claim 1, wherein: one end of the split iron core unit is provided with a dovetail groove, and the other end of the split iron core unit is provided with a dovetail clamping head; and the dovetail clamping heads of one split iron core unit are clamped into the dovetail grooves of the other split iron core unit to form an inner ring layer of the split iron core unit.