Laminated stator structure

Abstract

The utility model discloses a laminated stator structure which comprises a plurality of annular sheets, connecting sheets are symmetrically arranged on the inner sides of the annular sheets, tile-shaped sheets are fixedly connected to the sides of the connecting sheets, fixing bolts are symmetrically arranged on the front faces of the annular sheets, winding grooves are formed in the sides of the connecting sheets, and self-locking components are arranged on the opposite sides of the connecting sheets. The self-locking component comprises a self-locking groove, the self-locking groove is formed in the top of one connecting sheet, a self-locking protrusion is connected into the self-locking groove in a penetrating mode, and the self-locking protrusion is arranged at the bottom of the other connecting sheet. According to the utility model, the fixing bolts are connected to the front surfaces of the annular sheets in a penetrating manner, the annular sheets are connected and fixed through the fixing bolts, then the bolts are connected with the motor end cover, and the annular sheets are subjected to self-locking positioning through the self-locking structures; due to the fact that the fixing bolts are separated from the winding grooves, interference between the coil winding and the fixing bolts is avoided when the coil winding is installed, and installation of the coil winding is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of motor stators, in particular to a laminated stator structure. Background Art

[0002] The stator structure for a motor in the prior art mainly includes a stator housing with a central axis hole, and a plurality of magnetic poles evenly distributed on the inner wall of the stator housing. The magnetic poles are generally fixed to the stator housing by screws, and winding grooves are formed between adjacent magnetic poles. Coil windings are arranged in the winding grooves. This stator structure is generally fixed to the motor end cover by bolts, and the bolts pass through the winding grooves, so that the bolts interfere with the coil windings in the winding grooves, which is inconvenient to install. In order to solve this problem, a new type of laminated stator structure is needed. Utility Model Content

[0003] The purpose of the utility model is to provide a laminated stator structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laminated stator structure, comprising a plurality of annular sheets, the inner sides of the annular sheets are symmetrically provided with connecting sheets, the sides of the connecting sheets are fixedly connected with tile-shaped sheets, the front sides of the plurality of annular sheets are symmetrically provided with fixing bolts for connecting the plurality of annular sheets in series, and the opposite sides of the connecting sheets are provided with self-locking components for preventing the annular sheets from rotating.

[0005] Preferably, the self-locking component comprises a self-locking groove, which is arranged at the top of one of the connecting sheets, and a self-locking protrusion is inserted and connected inside the self-locking groove, and the self-locking protrusion is arranged at the bottom of the other connecting sheet.

[0006] Preferably, a winding groove is provided on the side of the connecting sheet.

[0007] Preferably, a plurality of bolt holes for inserting fixing bolts are symmetrically provided on the front side of the annular sheet, and avoidance protrusions are provided on the outer side of the annular sheet and on the sides of the bolt holes.

[0008] Preferably, the outer side of the annular sheet is symmetrically provided with cutting edges.

[0009] Preferably, the ends of the tile-shaped sheets are all configured to be V-shaped.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model has fixing bolts inserted and connected on the front side of the annular sheet, and multiple annular sheets are connected and fixed by the fixing bolts, and then the bolts are connected to the motor end cover, and the self-locking structure self-locks the annular sheets. The setting of the fixing bolts separated from the winding grooves avoids interference with the fixing bolts when the coil winding is installed, thereby facilitating the installation of the coil winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a front structural schematic diagram of the annular sheet of the utility model.

[0014] Figure 3 It is a schematic diagram of the back structure of the annular sheet of the utility model.

[0015] In the figure: 1, annular sheet; 101, bolt hole; 102, avoidance protrusion; 2, connecting sheet; 201, self-locking groove; 202, self-locking protrusion; 3, tile-shaped sheet; 4, winding groove; 5, cutting edge; 6, fixing bolt. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model provides Figure 1-3 A laminated stator structure shown includes a plurality of annular sheets 1, a connecting sheet 2 is symmetrically arranged on the inner side of the annular sheet 1, a tile-shaped sheet 3 is fixedly connected to the side of the connecting sheet 2, and fixing bolts 6 for connecting the plurality of annular sheets 1 in series are symmetrically arranged on the front side of the plurality of annular sheets 1;

[0018] It should be noted that the fixing bolts 6 penetrate multiple annular sheets 1, and finally the fixing bolts 6 can be connected and fixed to the motor end cover, so as to limit the position of the annular sheets 1, and multiple annular sheets 1 overlap to form a stator housing, and the tile-shaped sheets 3 are magnetic, and multiple tile-shaped sheets 3 overlap to form magnetic poles. The annular sheets 1, connecting sheets 2 and tile-shaped sheets 3 located on the same layer are integrally formed by stamping, and the stator housing and the magnetic poles are integrally formed to avoid skewness during assembly of the magnetic poles and to avoid the phenomenon of the magnetic poles falling off. Winding grooves 4 are provided on the sides of the connecting sheets 2, and the winding grooves 4 are used for inserting the coil windings.

[0019] A self-locking member for preventing the annular sheet 1 from rotating is provided on the opposite side of the connecting sheet 2;

[0020] Specifically, the self-locking member includes a self-locking groove 201, which is arranged at the top of one of the connecting sheets 2, and a self-locking protrusion 202 is inserted and connected inside the self-locking groove 201, and the self-locking protrusion 202 is arranged at the bottom of another connecting sheet 2;

[0021] It should be noted that the self-locking protrusion 202 is a stamped protrusion, and the connecting sheet 2 is formed into one piece by interlacing and locking the protrusion with the self-locking groove 201, thereby enhancing the stability between the annular sheets 1;

[0022] Specifically, the middle part of the annular sheet 1 is used for the rotor to be inserted, and the ends of the tile-shaped thin sheets 3 are all set to be V-shaped, which is a convex V-shape. The radius of the arc surface of the tile-shaped thin sheet 3 on the side close to the center of the cross-section of the annular sheet 1 is larger than the arc surface on the side away from the center of the cross-section of the annular sheet 1, and the centers of the two arc surfaces do not coincide. Therefore, after power is turned on, an uneven air gap is formed between the tile-shaped thin sheet 3 and the rotor, which can reduce the impact of current and thus extend the life of the motor.

[0023] The front of the annular plate 1 is symmetrically provided with a plurality of bolt holes 101 for inserting fixing bolts 6, and the outer side of the annular plate 1 and the side of the bolt holes 101 are provided with avoidance protrusions 102, and the outer side of the annular plate 1 is symmetrically provided with cutting edges 5;

[0024] It should be noted that the two cutting edges 5 are parallel to each other, and the bolt hole 101 is symmetrical along the center of the annular sheet 1. The cutting edges 5 play a positioning role when the multiple layers of annular sheets 1 are stacked and fixed together, which is convenient for installation. The avoidance protrusion 102 strengthens the strength of the annular sheet 1 around the bolt hole 101;

[0025] In the actual production process, the annular sheet 1, the tile-shaped sheet 3 and the connecting sheet 2 are stamped from metal plates and integrated into one, and a self-locking protrusion 202 and a self-locking groove 201 are formed on the connecting sheet 2, and then the annular sheet 1, the tile-shaped sheet 3 and the connecting sheet 2 are stacked together, and the self-locking protrusion 202 at the bottom of the connecting sheet 2 of the upper layer is embedded in the self-locking groove 201 at the top of the connecting sheet 2 of the lower layer, so that the annular sheet 1, the tile-shaped sheet 3 and the connecting sheet 2 of the upper layer are connected with the annular sheet 1, the tile-shaped sheet 3 and the connecting sheet 2 of the lower layer, and then the coil winding is installed in the winding groove 4, and finally the fixing bolt 6 is installed in the bolt hole 101 of the circular sheet, and fixed to the motor end cover by the fixing bolt 6. The setting of the fixing bolt 6 separated from the winding groove 4 avoids interference with the fixing bolt 6 during installation of the coil winding, thereby facilitating the installation of the coil winding.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laminated stator structure, comprising a plurality of annular sheets (1), characterized in that: A connecting sheet (2) is symmetrically arranged on the inner side of the annular sheet (1), a tile-shaped sheet (3) is fixedly connected to the side of the connecting sheet (2), fixing bolts (6) for connecting the multiple annular sheets (1) in series are symmetrically arranged on the front side of the multiple annular sheets (1), and a self-locking component for preventing the annular sheets (1) from rotating is arranged on the opposite side of the connecting sheet (2).

2. A laminated stator structure according to claim 1, characterized in that: The self-locking component comprises a self-locking groove (201), the self-locking groove (201) is arranged at the top of one of the connecting sheets (2), a self-locking protrusion (202) is inserted and connected inside the self-locking groove (201), and the self-locking protrusion (202) is arranged at the bottom of another connecting sheet (2).

3. A laminated stator structure according to claim 2, characterized in that: A winding groove (4) is provided on the side of the connecting sheet (2).

4. The laminated stator structure according to claim 1, characterized in that: The front side of the annular plate (1) is symmetrically provided with a plurality of bolt holes (101) for inserting fixing bolts (6), and an avoidance protrusion (102) is provided on the outside of the annular plate (1) and on the side of the bolt holes (101).

5. The laminated stator structure according to claim 1, characterized in that: The outer side of the annular sheet (1) is symmetrically provided with cutting edges (5).

6. The laminated stator structure according to claim 1, characterized in that: The ends of the tile-shaped sheets (3) are all arranged in a V shape.

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