Motor stator with novel structure

Abstract

The utility model provides a motor stator with a novel structure, and belongs to the technical field of motors. The problem of unstable connection between a stator winding and a stator punching sheet in the prior art is solved. The motor comprises a stator winding, a plurality of stator punching sheets, an armature assembly, a rear support and an electric brush box, the stator punching sheets are stacked, crescent ring bodies are formed in the stator punching sheets, limiting clamping grooves are formed between the crescent ring bodies and the inner side walls of the stator punching sheets, and the stator winding is connected with the limiting clamping grooves. The armature assembly is installed in the stator punching sheet, the outer wall of the armature assembly is close to the inner side wall of the crescent ring body, the left end and the right end of the outer side of the stator punching sheet form a plane, a convex body is formed in the middle of the plane, and installation feet are formed at the lower end of the rear support and connected with the planes on the two sides of the convex body. A shaft branch is fixed to the center of the armature assembly in a penetrating mode and penetrates through the top end of the rear support. The utility model has the advantage of stable structure.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology and relates to a novel structure motor stator. Background Technology

[0002] The stator is an important component of motors such as generators and starters. The stator is a crucial part of the electric motor; the stator core forms the main magnetic circuit of the stator and also serves as the mounting and fixing component for the stator windings.

[0003] Chinese patent publication number CN205544645U discloses a motor stator, including a circular stator core, a circular base, and windings. The stator core is made of several laminations stacked together. Each lamination includes a rotor hole located in the middle of the lamination. A set of first grooves and a set of second grooves are provided around the rotor hole. The outer diameter circle of the lamination is concave to form several first grooves, each of which has the same shape and size. The base is hollow inside, and the stator core is located inside the base. The diameter of the outer diameter circle of the stator core is the same as the diameter of the inner diameter circle of the base. The inner diameter circle of the base is concave to form several second grooves. The number and size of the second grooves are the same as those of the first grooves. Each second groove matches a first groove, and the two together form a ventilation opening. The windings are located in the first grooves and the second grooves.

[0004] The patent provides a motor stator that does not have a structure for adapting the placement of the stator windings, and it also allows for structural optimization. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel structure for a motor stator.

[0006] The objective of this utility model can be achieved through the following technical solution: A novel structure motor stator includes a stator winding, stator laminations, an armature assembly, a rear bracket, and a brush box. The stator laminations are numerous and stacked. A crescent-shaped ring is formed inside each stator lamination, and a limiting groove is formed between the crescent-shaped ring and the inner wall of the stator lamination. The stator winding is connected to the limiting groove. The armature assembly is installed inside the stator laminations, and the outer wall of the armature assembly is close to the inner wall of the crescent-shaped ring. The left and right ends of the outer side of the stator lamination are formed as planes, and a protrusion is formed in the middle of the plane. A mounting foot is formed at the lower end of the rear bracket, and the mounting foot is connected to the planes on both sides of the protrusion. The brush box is installed on the rear bracket. A shaft is fixed through the center of the armature assembly, and the shaft passes through the top of the rear bracket.

[0007] In the aforementioned novel motor stator, a commutator is fixedly mounted on the shaft.

[0008] In the aforementioned novel structure motor stator, circular through holes are provided on both sides of the stator lamination, and connecting holes are provided in the mounting feet of the rear bracket, with the circular through holes fitting into the connecting holes.

[0009] In the aforementioned novel motor stator structure, the width of the outer end of the limiting slot is greater than the width of the inner end of the limiting slot.

[0010] Compared with the prior art, the novel motor stator provided by this utility model has the following advantages: by setting up two crescent-shaped rings in the stator lamination, four limiting slots are formed inside the stator lamination. The width of the outer end of the limiting slot is greater than the width of the inner end, which facilitates the installation of the stator winding and ensures high stability after installation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the stator lamination structure.

[0013] In the diagram: 1. Stator winding; 2. Stator lamination; 21. Crescent ring; 22. Limiting slot; 23. Plane; 24. Protrusion; 25. Circular through hole; 3. Armature assembly; 4. Rear bracket; 41. Mounting foot; 42. Connecting hole; 5. Brush box; 6. Shaft branch; 7. Commutator. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figures 1 to 2 As shown, this embodiment includes a stator winding 1, a stator lamination 2, an armature assembly 3, a rear support 4, and a brush box 5. There are two stator windings 1 and two brush boxes 5. There are several stator laminations 2 stacked together. Two crescent-shaped rings 21 are formed inside the stator laminations 2. The two crescent-shaped rings 21 are arranged in a horizontally symmetrical structure. Four limiting slots 22 are formed between the two crescent-shaped rings 21 and the inner sidewall of the stator laminations 2. Each stator winding 1 is connected to two limiting slots 22 on the same side.

[0016] like Figures 1 to 2As shown, the armature assembly 3 is installed inside the stator lamination 2, and the outer wall of the armature assembly 3 is close to the inner wall of the crescent ring 21. The left and right ends of the outer side of the stator lamination 2 form a plane 23, and a protrusion 24 is formed in the middle of the plane 23. The lower end of the rear bracket 4 forms a mounting foot 41. The mounting foot 41 is connected to the plane 23 on both sides of the protrusion 24, and the inner side of the mounting foot 41 is in contact with the outer side of the protrusion 24. Circular through holes 25 are opened on both sides of the stator lamination 2. A connecting hole 42 is opened and formed in the mounting foot 41 of the rear bracket 4. The circular through hole 25 is in contact with the connecting hole 42. The rear bracket 4 and the stator lamination 2 are fixedly connected through the circular through hole 25 and the connecting hole 42.

[0017] To elaborate further, such as Figures 1 to 2 As shown, the two corners of the crescent ring 21 have a larger arc, making the width of the outer end of the limiting slot 22 greater than the width of the inner end of the limiting slot 22. This structure facilitates the installation of the stator winding 1. When the stator winding 1 is placed inside the limiting slot 22, the stator winding 1 can be stably fixed by the limiting slot 22.

[0018] To elaborate further, such as Figures 1 to 2 As shown, two brush boxes 5 are symmetrically arranged and installed on the rear bracket 4. A shaft branch 6 is fixed through the center of the armature assembly 3. The shaft branch 6 passes through the top of the rear bracket 4. A commutator is fixed on the shaft branch 6. The commutator is located between the two brush boxes 5.

[0019] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0020] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A novel structure motor stator, comprising stator windings (1), stator laminations (2), armature assembly (3), rear support (4), and brush box (5), wherein the number of stator laminations (2) is several and stacked, characterized in that: The stator lamination (2) has a crescent-shaped ring (21) inside. A limiting groove (22) is formed between the crescent-shaped ring (21) and the inner sidewall of the stator lamination (2). The stator winding (1) is connected to the limiting groove (22). The armature assembly (3) is installed inside the stator lamination (2) and the outer wall of the armature assembly (3) is close to the inner sidewall of the crescent-shaped ring (21). The left and right ends of the stator lamination (2) are formed into planes (23) and a protrusion (24) is formed in the middle of the planes (23). The lower end of the rear bracket (4) forms a mounting foot (41). The mounting foot (41) is connected to the planes (23) on both sides of the protrusion (24). The brush box (5) is installed on the rear bracket (4). A shaft branch (6) is fixed through the center of the armature assembly (3). The shaft branch (6) passes through the top of the rear bracket (4).

2. The novel motor stator according to claim 1, characterized in that: A commutator (7) is fixedly mounted on the shaft (6).

3. The novel motor stator according to claim 1, characterized in that: The stator lamination (2) has circular through holes (25) on both sides, and the mounting feet (41) of the rear bracket (4) have connecting holes (42) formed therein, and the circular through holes (25) fit into the connecting holes (42).

4. The novel motor stator according to claim 1, characterized in that: The width of the outer end of the limiting slot (22) is greater than the width of the inner end of the limiting slot (22).

Images