Motor assembly type stator core and manufacturing method thereof

Abstract

The invention belongs to the field of motor manufacturing, and relates to a motor assembly type stator iron core and a manufacturing method. Comprising a stator magnet yoke (1), a stator magnetic pole (2), a winding (3) and a winding insulator (4), the winding insulator (4) is arranged on the pole body of the stator magnetic pole (2), and the winding (3) is directly wound on the pole body; and the stator magnetic poles (2) wound with the stator winding (3) are mounted on the stator magnet yoke (1) in an interference manner and are glued to prevent looseness. According to the invention, the problem of a complex stator winding coil inserting process is solved, and compared with a traditional process of winding a plurality of turns of winding coils first and then inserting the coil, the coil inserting efficiency of the motor stator winding is improved while the slot fullness rate can be effectively improved; due to the fact that the winding is directly arranged on the magnetic pole, damage to an insulating layer of an enamelled wire possibly caused in the processes of dismounting, wire inserting and shaping after winding of a winding mold is avoided, and the insulating performance of the winding and the reliability of the whole winding are improved.

Description

Technical Field

[0001] This invention belongs to the field of motor manufacturing and relates to an assembled stator core for motors and its manufacturing method. Background Technology

[0002] The motor consists of a stator and a rotor. Enameled wire is wound onto the stator core. Traditionally, the stator core winding is first wound, then wound, and finally shaped, which is a complex, inefficient, and unreliable process. This invention allows the winding to be wound directly onto the stator poles, eliminating the need for shaping after winding, and can then be assembled onto the stator poles. The stator poles with windings are then mounted to the stator yoke using an interference fit, improving assembly efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a method for manufacturing an assembled stator core and windings for an electric motor. By using a separate structure for the stator yoke and stator poles, the windings are wound onto the poles and then assembled as a whole, thereby improving assembly efficiency.

[0004] The technical solution of the present invention is: a motor assembled stator core, the stator core including stator yoke 1, stator pole 2, winding 3 and winding insulation 4; the winding insulation 4 is installed on the pole body of stator pole 2, and the winding 3 is directly wound on the pole body; the stator pole 2 with the winding of stator winding 3 completed is installed on stator yoke 1 by interference fit and glue is applied to prevent loosening.

[0005] The stator yoke 1 has a ring structure with wedge-shaped tenons evenly distributed on the circumference of the inner ring.

[0006] The stator yoke 1 is formed by lamination or integral molding, and the laminations are made of ultra-thin soft magnetic alloy or silicon steel sheets.

[0007] The stator yoke 1 has a tenon groove width d1 of 6mm to 60mm, a groove opening width d2 of 3mm to 30mm, and a tenon groove height h of 0.5mm to 5mm.

[0008] The stator pole 2 has a wedge-shaped tenon structure.

[0009] The stator magnetic pole 2 has a pole width of b2, b2 = d2, a tenon width of b1, b1 = d1, and a tenon height of h1, h1 = h.

[0010] The wedge-shaped tenon of the stator pole 2 and the wedge-shaped tenon of the stator yoke 1 are interference fit.

[0011] The aforementioned motor assembly stator core and manufacturing method involve directly winding the winding 3 onto the stator pole 2. The wedge-shaped tenon of the stator pole 2 and the wedge-shaped tenon of the stator yoke 1 are interference-fitted. The wedge-shaped tenon of the stator pole 2 is inserted into the wedge-shaped tenon of the stator yoke 1 and secured with glue or screws to prevent loosening. The winding insulation 4 is first installed on the stator pole 2 and is bonded to the outer surface of the stator pole 2 with high-strength adhesive. The winding 3 is then wound onto the stator pole 2.

[0012] The beneficial effects of this invention are: This design solves the problem of complex stator winding winding process. Compared with the traditional process of winding multiple turns of coil first and then winding, it can effectively improve the slot fill factor and improve the winding efficiency of motor stator winding. Since the winding is directly on the magnetic pole, it avoids the damage to the enameled wire insulation layer that may be caused during disassembly, winding, and shaping after winding mold, thus improving the winding insulation performance and the overall winding reliability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembled stator core of the present invention.

[0014] Figure 2 This is a schematic diagram of the stator magnetic pole assembly of the present invention.

[0015] Figure 3 This is a schematic diagram and a perspective view of the stator yoke of the present invention.

[0016] Figure 4 This is a schematic diagram and a perspective view of the stator magnetic poles of the present invention.

[0017] Among them, 1 - stator yoke, 2 - stator pole, 3 - winding, 4 - winding insulation Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. Numerous specific details are set forth in the following detailed description to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can also be practiced without these specific details. The following description of embodiments is merely intended to illustrate examples of the invention for a better understanding. The invention is not limited to any specific setups and methods provided below, but covers all improvements, substitutions, etc., to product structures and methods without departing from the spirit of the invention.

[0019] like Figure 1 - Figure 4As shown, a motor assembly stator core includes a stator yoke 1, stator poles 2, windings 3, and winding insulation 4. The winding insulation 4 is installed on the pole body of the stator poles 2, and the windings 3 are directly wound on the pole body. The stator poles 2 with the windings 3 completed are installed on the stator yoke 1 by interference fit and glue is applied to prevent loosening.

[0020] The stator yoke 1 has a ring structure with wedge-shaped tenons evenly distributed on the circumference of the inner ring.

[0021] The stator yoke 1 is formed by lamination or integral molding, and the laminations are made of ultra-thin soft magnetic alloy or silicon steel sheets.

[0022] The stator yoke 1 has a tenon groove width d1 of 6mm to 60mm, a groove opening width d2 of 3mm to 30mm, and a tenon groove height h of 0.5mm to 5mm.

[0023] The stator pole 2 has a wedge-shaped tenon structure.

[0024] The stator magnetic pole 2 has a pole width of b2, b2 = d2, a tenon width of b1, b1 = d1, and a tenon height of h1, h1 = h.

[0025] The wedge-shaped tenon of the stator pole 2 and the wedge-shaped tenon of the stator yoke 1 are interference fit.

[0026] The aforementioned motor assembly stator core and manufacturing method involve directly winding the winding 3 onto the stator pole 2. The wedge-shaped tenon of the stator pole 2 and the wedge-shaped tenon of the stator yoke 1 are interference-fitted. The wedge-shaped tenon of the stator pole 2 is inserted into the wedge-shaped tenon of the stator yoke 1 and secured with glue or screws to prevent loosening. The winding insulation 4 is first installed on the stator pole 2 and is bonded to the outer surface of the stator pole 2 with high-strength adhesive. The winding 3 is then wound onto the stator pole 2.

Claims

1. An assembled stator core of an electric machine, characterized by: The stator core comprises a stator yoke (1), a stator pole (2), a winding (3) and winding insulation (4); the winding insulation (4) is installed on the pole body of the stator pole (2), and the winding (3) is directly wound on the pole body; the stator pole (2) on which the stator winding (3) is wound is installed on the stator yoke (1) by interference and is glued to prevent loosening.

2. The motor assembled stator core according to claim 1, characterized by: The stator yoke (1) is in a ring structure, and wedge-shaped mortises are uniformly distributed on the inner circular ring.

3. The motor assembled stator core of claim 1, wherein: The stator yoke (1) is formed by stamping and stacking or is integrally formed, and the stamping is super-thin soft magnetic alloy or silicon steel sheet.

4. The motor assembled stator core of claim 1, wherein: The width d1 of the mortise of the stator yoke (1) is 6mm-60mm, the width d2 of the slot is 3mm-30mm, and the height h of the mortise is 0.5mm-5mm.

5. The motor assembled stator core of claim 1, wherein: The stator pole (2) has a wedge-shaped tongue structure.

6. The assembled stator core of claim 6, wherein: The pole width of the stator pole (2) is b2, b2=d2, the tongue width is b1, b1=d1, and the tongue height is h1, h1=h.

7. The assembled stator core of claim 1, wherein: The wedge-shaped tongue of the stator pole (2) and the wedge-shaped mortise of the stator yoke (1) are in interference fit.

8. The motor assembled stator core and manufacturing method according to any one of claims 1 to 7, characterized in that: The winding (3) is directly wound on the stator pole (2), the wedge-shaped tongue of the stator pole (2) and the wedge-shaped mortise of the stator yoke (1) are in interference fit, the wedge-shaped tongue of the stator pole (2) is inserted into the wedge-shaped mortise of the stator yoke (1) and is glued or fixed by screws to prevent loosening, the winding insulation (4) is first installed on the stator pole (2), the winding insulation (4) is adhered to the outer surface of the stator pole (2) by high-strength glue, and the winding (3) is wound on the stator pole (2). The stator core comprises a stator yoke (1), a stator pole (2), a winding (3) and winding insulation (4); the winding insulation (4) is installed on the pole body of the stator pole (2), and the winding (3) is directly wound on the pole body; the stator pole (2) on which the stator winding (3) is wound is installed on the stator yoke (1) by interference and is glued to prevent loosening. The stator yoke (1) is in a ring structure, and wedge-shaped mortises are uniformly distributed on the inner circular ring. The stator yoke (1) is formed by stamping and stacking or is integrally formed, and the stamping is super-thin soft magnetic alloy or silicon steel sheet. The width d1 of the mortise of the stator yoke (1) is 6mm-60mm, the width d2 of the slot is 3mm-30mm, and the height h of the mortise is 0.5mm-5mm. The stator pole (2) has a wedge-shaped tongue structure. The pole width of the stator pole (2) is b2, b2=d2, the tongue width is b1, b1=d1, and the tongue height is h1, h1=h. The wedge-shaped tongue of the stator pole (2) and the wedge-shaped mortise of the stator yoke (1) are in interference fit. The winding (3) is directly wound on the stator pole (2), the wedge-shaped tongue of the stator pole (2) and the wedge-shaped mortise of the stator yoke (1) are in interference fit, the wedge-shaped tongue of the stator pole (2) is inserted into the wedge-shaped mortise of the stator yoke (1) and is glued or fixed by screws to prevent loosening, the winding insulation (4) is first installed on the stator pole (2), the winding insulation (4) is adhered to the outer surface of the stator pole (2) by high-strength glue, and the winding (3) is wound on the stator pole (2).

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