CN110994851A

CN110994851A - Independent winding type motor iron core

Info

Publication number: CN110994851A
Application number: CN201911290211.2A
Authority: CN
Inventors: 孙豪远; 江林飞; 汪旭亮
Original assignee: Yongchang Holding Group Co Ltd
Current assignee: Yongchang Holding Group Co Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-04-10

Abstract

The invention discloses an independent winding type motor iron core, which comprises a core body (10), wherein the core body (10) is provided with an annular yoke part (11), a tooth part (12) is distributed outside the yoke part (11) in an annular mode, an insulating shell (20) is radially sleeved on the tooth part (12), a winding wire is wound outside the insulating shell (20), and the radial outer end of the tooth part (12) is provided with a tooth top (30) for limiting the position of the insulating shell (20); tooth portion (12) are equipped with breach (13), tooth top (30) are equipped with breach (13) complex arch (31), tooth top (30) still are equipped with the elastic component, and the elastic component makes breach (13) and arch (31) lock all the time with insulating casing (20) inner wall cooperation. The invention has the characteristics of convenient assembly and firm assembly.

Description

Independent winding type motor iron core

Technical Field

The invention relates to a motor iron core of a large washing machine, in particular to an independent winding type motor iron core.

Background

Part of the washing machine motor is of an inner stator and outer rotor structure. The rotor is of a structure similar to a disc body, magnets are distributed on the inner annular wall of the disc body, the stator comprises an annular iron core body, tooth parts are distributed outside the iron core body in an annular mode, the tooth parts are provided with umbrella-shaped top ends, and winding wires are wound on the tooth parts through an insulating structure. The iron core of conventional structure often adopts artifical rule, leads to working strength big, and is efficient, produces the quality problem easily. Therefore, the automatic wire-inserting type stator core is produced. The iron core with the structure is mainly divided into two forms, namely, an iron core body is divided into a plurality of sectors, each sector is independently wound and then assembled, a tooth part is made into a cuboid, a winding is wound on an insulator, then the insulator is radially inserted on the tooth part, and finally the insulator is locked by a structure of inserting sheets and grooves. The latter has better assembly difficulty and manufacturability, but the tab structure has corresponding problems. If inserted sheet and groove interference fit, frictional force is big during then inserted sheet equipment, if the inserted sheet is not interference fit with the groove, then the inserted sheet is firm inadequately, has the risk that drops under the vibration operating mode.

Therefore, it is an urgent need to solve the above-mentioned problems by those skilled in the art to design an automatically wound motor core that is easy to assemble and is firmly assembled.

Disclosure of Invention

The invention aims to provide an independent winding type motor iron core. The invention has the characteristics of convenient assembly and firm assembly.

The technical scheme of the invention is as follows: the independent winding type motor iron core comprises a core body, wherein the core body is provided with an annular yoke part, tooth parts are distributed outside the yoke part in an annular mode, the tooth parts are radially sleeved with insulating shells, winding wires are wound outside the insulating shells, and tooth tops for limiting the positions of the insulating shells are arranged at the radial outer ends of the tooth parts; the tooth part is provided with a notch, the tooth top is provided with a bulge matched with the notch, the tooth top is also provided with an elastic part, and the elastic part is matched with the inner wall of the insulating shell to enable the notch and the bulge to be locked all the time.

In the iron core of the independent winding type motor, the tooth part is provided with an L-shaped notch; the tooth top comprises an umbrella part, the umbrella part is connected with a handle part, the handle part is matched with the notch, and the bottom end of the handle part is provided with a bulge clamped in the notch; the handle part is also provided with a spring plate which is matched with the inner wall of the insulating shell.

In the independent winding type motor iron core, the tooth part is provided with a wedge-shaped gap, and the gap is large in the radial direction and small in the radial direction; the tooth top comprises an umbrella part, the umbrella part is connected with a handle part, the handle part is matched with the notch, and the bottom end of the handle part is provided with a bulge clamped in the notch; the handle part is also provided with a spring plate which is matched with the inner wall of the insulating shell.

Compared with the prior art, the invention locks the insulating shell through the independent tooth top. During assembly, the notches and the bulges of the tooth tops are matched, and the elastic part is matched with the insulating shell to form self-locking after the elastic part is matched in place. The structure is convenient and firm to assemble and has small falling risk.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram according to the first embodiment;

FIG. 3 is a schematic view of the tooth tip;

fig. 4 is a schematic structural diagram of the second embodiment.

Reference numerals: 10-core, 11-yoke, 12-tooth, 13-notch, 20-insulating shell, 30-tooth top, 31-bulge, 32-umbrella, 33-handle and 34-spring.

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.

The first embodiment is as follows: independent wound-rotor type motor core, including core 10, core 10 has annular yoke 11, and the outer annular distribution of yoke 11 has tooth 12, and tooth 12 radially overlaps there is insulating shell 20, and insulating shell 20 is outer around being equipped with the winding wire, and the radial outer end of tooth 12 is equipped with the addendum 30 of restriction insulating shell 20 position.

As shown in fig. 2, the radial outer end of the tooth portion 12 is provided with a notch 13, and the notch 13 is L-shaped. The tooth top 30 comprises an umbrella part 32, the umbrella part 32 is connected with a handle part 33, the handle part 33 is matched with the L-shaped notch 13, and the bottom end of the handle part 33 is provided with a bulge 31 clamped in the notch 13. The other side of the handle part 33 opposite to the protrusion 31 is provided with a spring 34, and the spring 34 props against the inner wall of the insulating shell 20.

During assembly, the insulator wound with wires is sleeved on the tooth part 12, and the insulating shell 20 is recessed at least through the bottom of the L-shaped notch 13 in the radial direction. Then the tooth top 30 is inserted into the insulating shell 20, the handle 33 of the tooth top 30 is matched with the notch 13, and the elastic sheet 34 is propped against the inner wall of the insulating shell 20 to form self-locking.

Example two: the structure of this embodiment is substantially the same as that of the first embodiment, except for the shape of the notch 13. As shown in fig. 4, the notch 13 of this embodiment is wedge-shaped, and is large and small in the radial direction. The shank 33 is generally wedge-shaped and the protrusion 31 may be considered as a corner of the bottom end of the shank 33.

Claims

1. Independent wound-rotor type motor core, its characterized in that: the winding core comprises a core body (10), wherein the core body (10) is provided with an annular yoke part (11), tooth parts (12) are distributed outside the yoke part (11) in an annular mode, an insulating shell (20) is radially sleeved on the tooth parts (12), a winding wire is wound outside the insulating shell (20), and tooth tops (30) for limiting the position of the insulating shell (20) are arranged at the radial outer ends of the tooth parts (12); tooth portion (12) are equipped with breach (13), tooth top (30) are equipped with breach (13) complex arch (31), tooth top (30) still are equipped with the elastic component, and the elastic component makes breach (13) and arch (31) lock all the time with insulating casing (20) inner wall cooperation.

2. The independently wound motor core of claim 1, wherein: the tooth part (12) is provided with an L-shaped notch (13); the tooth top (30) comprises an umbrella part (32), the umbrella part (32) is connected with a handle part (33), the handle part (33) is matched with the notch (13), and the bottom end of the handle part (33) is provided with a bulge (31) clamped in the notch (13); the handle part (33) is also provided with a spring sheet (34), and the spring sheet (34) is matched with the inner wall of the insulating shell (20).

3. The independently wound motor core of claim 1, wherein: the tooth part (12) is provided with a wedge-shaped notch (13), and the notch (13) is large in the radial direction and small in the radial direction; the tooth top (30) comprises an umbrella part (32), the umbrella part (32) is connected with a handle part (33), the handle part (33) is matched with the notch (13), and the bottom end of the handle part (33) is provided with a bulge (31) clamped in the notch (13); the handle part (33) is also provided with a spring sheet (34), and the spring sheet (34) is matched with the inner wall of the insulating shell (20).