CN218868003U

CN218868003U - Single-wire iron core winding structure

Info

Publication number: CN218868003U
Application number: CN202222898589.4U
Authority: CN
Inventors: 朱正虎; 姚国柱; 李杨; 王晓飞; 陈小河; 刘凯
Original assignee: Zhejiang Luyuan Electric Vehicle Co Ltd
Current assignee: Zhejiang Luyuan Electric Vehicle Co Ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-04-14
Anticipated expiration: 2032-11-01

Abstract

The utility model discloses a single line iron core winding structure, including stator core, copper line, the last stator tooth that is provided with evenly distributed of stator core, the positive and negative both sides of stator tooth are provided with the insulating piece, and the stator tooth is T type structure, forms the parallel groove structure between the stator tooth, and the centre of parallel groove structure is provided with the line region, and the copper line distributes in the regional both sides of line and winds on the stator tooth. The utility model discloses a parallel slot structure has improved the insulating properties between the copper line, has solved copper line and stator core electric leakage problem, still makes the copper line not crowded, has ensured the motor performance.

Description

Single-wire iron core winding structure

Technical Field

The utility model relates to the technical field of electric machines, especially, relate to a single line iron core winding structure.

Background

With the progress of the electric motor technology, the automation degree of the motor winding process is higher and higher, and the former manual winding process is gradually replaced by a machine multi-wire winding process. The multi-wire machine winds a normal winding, and the qualified wire is about 90% under the one-time condition. According to the theoretical knowledge of the motor windings, the industry has appeared the theory of the number of parallel circuits of the motor windings and the appearance of a single-wire winding machine. The component of this mode coiling, make full use of groove area has promoted the full rate of groove by a wide margin, and the winding qualification rate is higher than the multi-thread machine simultaneously, and the motor performance obtains very big promotion.

However, in the existing multi-wire wound stator structure, a parallel tooth structure is generally adopted, the tooth width is wide, and when the motor current is large, the phenomenon of magnetic density saturation is easily caused by an iron core. The single-wire winding is adopted, the number of multiple parallel circuits is large, the number of turns is large, the wire diameter is large, and the winding is easy to have the phenomena of turn-to-turn short circuit, electric leakage and wire breakage, so the improvement is needed.

Disclosure of Invention

The utility model discloses to defects such as the magnetic saturation that exists among the prior art, electric leakage, provide a new single line iron core winding structure.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

the utility model provides a single wire core winding structure, includes stator core, copper line, the last stator tooth that is provided with evenly distributed of stator core, the tow sides of stator tooth are provided with the insulating piece, the stator tooth is T type structure, form parallel groove structure between the stator tooth, the centre of parallel groove structure is provided with the line region, the copper line distribute in cross the regional both sides of line and wind in on the stator tooth.

The stator teeth are used for being wound by copper wires. The insulating piece is used for improving insulating properties, prevents that copper line and stator core from taking place the electric leakage. The T-shaped structure enables the upper part of the stator tooth to be wider than the bottom part, so that the upper area and the lower area of the parallel groove structure are approximately parallel, and the problem of magnetic saturation is avoided. The parallel groove structure is used for accommodating copper wires, and through the design that the upper and lower area is parallel, the motor is prevented from generating the magnetic saturation problem under the heavy current. Due to the design of the wire passing area, copper wires on two sides are prevented from being crowded, and the copper wires on two sides are prevented from being interfered. The utility model discloses a parallel slot structure has improved the insulating properties between the copper line, has solved copper line and stator core electric leakage problem, still makes the copper line not crowded, has ensured the motor performance.

Preferably, in the single-wire core winding structure, a stator shoulder is disposed at an upper portion of the stator tooth.

The stator shoulder is used for improving the upper width of the stator tooth, so that the upper part of the stator tooth is wider than the bottom of the stator tooth, the upper area and the lower area of the parallel groove structure are approximately parallel, and the problem of magnetic saturation of the motor under large current is avoided.

Preferably, in the single-wire core winding structure, the width of the upper part of the stator tooth is larger than that of the bottom part of the stator tooth.

The above design further makes the upper and lower areas of the parallel groove structure nearly parallel.

Preferably, in the single-wire core winding structure, both the width of the upper part and the width of the bottom part of the stator tooth are less than or equal to 0.8mm.

By means of the design, the difference value between the average magnetic flux density of the stator teeth and the traditional parallel tooth structure is reduced, and the problem of magnetic saturation of the motor under large current is avoided.

Preferably, in the single-wire core winding structure, the top edge of the stator shoulder is parallel to the bottom edge.

By the design, the area of the parallel groove structure is increased, and the performance of the motor is not affected.

Preferably, in the single-wire core winding structure, an inclined shoulder structure is arranged at the bottom of the shoulder of the stator.

By means of the design, the structural strength of the shoulder part of the stator is improved, and therefore the stability of the motor is improved.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram of a stator shoulder in embodiment 2 of the present invention.

Detailed Description

The invention will be described in further detail with reference to the following figures 1 to 4 and the detailed description, which are not intended to limit the invention:

example 1

The utility model provides a single line iron core winding structure, includes stator core 1, copper line 2, be provided with evenly distributed's stator tooth 3 on the stator core 1, the positive and negative both sides of stator tooth 3 are provided with insulating piece 4, stator tooth 3 is T type structure, form parallel slot structure 5 between the stator tooth 3, the centre of parallel slot structure 5 is provided with crosses line region 6, copper line 2 distribute in cross the both sides of line region 6 and around in on the stator tooth 3.

Preferably, the upper part of the stator teeth 3 is provided with a stator shoulder 7.

Preferably, the width of the upper part of the stator tooth 3 is larger than that of the bottom part.

Preferably, the width of the upper part and the width of the bottom part of the stator tooth 3 are both less than or equal to 0.8mm.

Example 2

Preferably, the top edge of the stator shoulder 7 is parallel to the bottom edge.

Other embodiments of this example are the same as example 1.

Example 3

Preferably, the bottom of the stator shoulder 7 is provided with a sloping shoulder structure 8.

Other embodiments of this example are the same as example 1.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims

1. The utility model provides a single line iron core winding structure, includes stator core (1), copper line (2), its characterized in that: stator core (1) is last to be provided with evenly distributed's stator tooth (3), the tow sides of stator tooth (3) are provided with insulating piece (4), stator tooth (3) are T type structure, form parallel groove structure (5) between stator tooth (3), the centre of parallel groove structure (5) is provided with cross line region (6), copper line (2) distribute in cross the both sides of line region (6) and around in on stator tooth (3).

2. A single wire core winding arrangement according to claim 1, wherein: and the upper part of the stator tooth (3) is provided with a stator shoulder (7).

3. The single-wire iron core winding structure according to claim 2, characterized in that: the width of the upper part of the stator tooth (3) is larger than that of the bottom part.

4. The single-wire iron core winding structure according to claim 2, characterized in that: the width of the upper part and the width of the bottom of the stator tooth (3) are both less than or equal to 0.8mm.

5. A single wire core winding arrangement according to claim 2, wherein: the top edge and the bottom edge of the stator shoulder (7) are parallel.

6. The single-wire iron core winding structure according to claim 2, characterized in that: and an inclined shoulder structure (8) is arranged at the bottom of the stator shoulder (7).