High-stability split type motor stator

Abstract

The utility model provides a high-stability split type motor stator, and belongs to the field of motors. The problems that an existing stator is difficult to wind and high in damage rate are solved. The high-stability split type motor stator comprises a stator iron core and a plurality of stator windings, the stator windings are provided with winding grooves, the stator windings and the stator iron core are of a split type detachable structure and are sequentially distributed at intervals in the circumferential direction along the outer circumferential wall of the stator iron core, and a splicing structure is arranged between the stator iron core and the stator windings. The splicing structure comprises a splicing block and a plurality of splicing holes, the splicing holes and the splicing block are arranged in a square structure, a dovetail groove is formed in the lower end of the splicing block, a dovetail block is arranged in the splicing hole, an annular groove is formed in the upper end face of the stator core, a limiting pressing ring is embedded in the annular groove, and the limiting pressing ring is arranged in the annular groove. An opening groove is formed in the upper end of the splicing block and matched with the limiting pressing ring. The utility model has the advantages of convenient winding and split type.

Description

Technical Field

[0001] The utility model belongs to the field of motors, and relates to a motor stator, in particular to a highly stable split-type motor stator. Background Art

[0002] The stator is an important part of the motor, mainly composed of a stator core, a stator winding and a frame. The main function of the stator is to generate a rotating magnetic field. The stator winding is a winding installed on the stator, that is, a copper wire wound around the stator, and is a general term for a phase or the entire electromagnetic circuit composed of multiple coils or coil groups.

[0003] The structure of the traditional motor stator core is generally cylindrical. The stator winding and the stator core are generally set as an integral structure. When the stator core is damaged after long-term use, it can only be scrapped as a whole, resulting in a large amount of material waste. In addition, due to the structural design of the stator core and the stator winding, there is a certain process difficulty when winding the copper wire into the stator winding, the winding step is difficult, the labor cost is increased, and the production efficiency is seriously affected. Summary of the Invention

[0004] The purpose of the utility model is to provide a highly stable split-type motor stator to solve the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: a highly stable split-type motor stator, including a stator core and a plurality of stator windings. The stator winding has a winding groove for facilitating the winding of the copper wire. It is characterized in that the stator winding and the stator core are set as a split and detachable structure, and are sequentially arranged at intervals in the circumferential direction along the outer peripheral wall of the stator core. A splicing structure is arranged between the stator core and the stator winding;

[0006] The splicing structure includes splicing blocks axially extending outward at the corresponding side ends of the stator winding and a plurality of splicing holes located on the outer peripheral wall of the stator core and cooperating with the splicing blocks;

[0007] Both the splicing hole and the splicing block are set in a "square" shape structure;

[0008] A dovetail groove for improving the connection stability is opened at the lower end of the splicing block, and a dovetail block cooperating with the dovetail groove is arranged in the splicing hole;

[0009] A ring groove connected to the splicing hole is opened on the upper end face of the stator core, and a limiting pressure ring for radially limiting the stator winding is inlaid and installed in the ring groove;

[0010] An opening groove for improving the connection stability is opened at the upper end of the splicing block and cooperates with the limiting pressure ring.

[0011] In the above-mentioned highly stable split-type motor stator, the limiting pressure ring is arranged in a T-shaped structure and is in a concave-convex structure fit with the opening groove, and several stator windings are in fit with the limiting pressure ring through the opening grooves on the splicing blocks, realizing radial fastening and limiting.

[0012] In the above-mentioned highly stable split-type motor stator, the opening of the opening groove has a guiding chamfer for facilitating the guiding fit of the limiting pressure ring, and the side wall of the dovetail groove is provided with a guiding cutting edge for facilitating the guiding fit of the dovetail block and preventing jamming.

[0013] In the above-mentioned highly stable split-type motor stator, the stator winding and the splicing block are integrally formed. The number of splicing holes is equal to that of the stator windings, and the stator winding is connected to the stator core quickly through the cooperation of the splicing block, the splicing hole and the limiting pressure ring structure.

[0014] In the above-mentioned highly stable split-type motor stator, the limiting pressure ring can be fixedly connected to the end face of the stator core by gluing and is in limiting fit with the ring groove and the opening groove.

[0015] Compared with the prior art, the structure of the present highly stable split-type motor stator is simply designed, the winding process is convenient and easy to operate, the assembly difficulty is reduced, the labor force of manual winding is effectively reduced, and the production efficiency is improved. At the same time, a splicing structure is designed with reference to the principle of the traditional cross mortise and tenon structure. By using the cooperation of the splicing block, the splicing hole and the limiting pressure ring structure, the connection strength at the splicing part can be effectively stabilized, and its overall strength is improved. While facilitating winding and assembly, its service life is prolonged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present highly stable split-type motor stator.

[0017] Figure 2 is a three-dimensional structural schematic diagram of the stator winding in the present highly stable split-type motor stator.

[0018] Figure 3 is a partial three-dimensional structural schematic diagram of the present highly stable split-type motor stator.

[0019] Figure 4 is a three-dimensional structural schematic diagram of the limiting pressure ring in the present highly stable split-type motor stator.

[0020] Figure 5 is a top-view structural schematic diagram of the stator core of the present highly stable split-type motor stator.

[0021] In the figure, 1 is the stator core; 2 is the stator winding; 3 is the splicing block; 4 is the splicing hole; 5 is the dovetail groove; 6 is the dovetail block; 7 is the annular groove; 8 is the limiting pressure ring; 9 is the guiding cutting edge; 10 is the guiding chamfer; 11 is the opening groove. Detailed implementation mode

[0022] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0023] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown in

[0024] , etc., the high-stability split-type motor stator of the present invention includes a stator core 1 and a plurality of stator windings 2. The stator winding 2 has a winding groove convenient for winding copper wires. The stator winding 2 and the stator core 1 are arranged in a split and detachable structure, and are sequentially and evenly distributed along the circumferential direction of the outer peripheral wall of the stator core 1. A splicing structure is arranged between the stator core 1 and the stator winding 2. The splicing structure includes a splicing block 3 extending axially outward at the corresponding side end of the stator winding 2 and a plurality of splicing holes 4 located on the outer peripheral wall of the stator core 1 and cooperating with the splicing block 3. Both the splicing hole 4 and the splicing block 3 are arranged in a "square" shape. A dovetail groove 5 for improving the connection stability is opened at the lower end of the splicing block 3. A dovetail block 6 cooperating with the dovetail groove 5 is arranged in the splicing hole 4. An annular groove 7 connected to the splicing hole 4 is opened on the upper end face of the stator core 1. A limiting pressure ring 8 for radially limiting the stator winding 2 is inlaid and installed in the annular groove 7. An opening groove 11 for improving the connection stability is opened at the upper end of the splicing block 3 and cooperates with the limiting pressure ring 8.

[0025] This structure is simple in design, the winding process is convenient and easy to operate, the assembly difficulty is reduced, the labor force of manual winding is effectively reduced, and the production efficiency is improved. At the same time, a splicing structure is designed with reference to the traditional tenon and mortise structure principle. By using the structural cooperation of the splicing block 3, the splicing hole 4 and the limiting pressure ring 8, the connection strength at the splicing part can be effectively stabilized, and the overall strength is improved. While facilitating winding and assembly, the service life is extended.

[0026] Specifically, for the convenience of the splicing and guiding fit of the stator winding 2 and to ensure smooth installation during splicing, the notch of the opening slot 11 has a guiding chamfer 10 that facilitates the guiding fit of the limiting pressing ring 8. A guiding cutting edge 9 that facilitates the guiding fit of the dovetail block 6 and prevents jamming is provided on the side wall of the dovetail slot 5.

[0027] Specifically, to improve the overall connection strength and connection stability of the stator winding 2, the stator winding 2 and the splicing block 3 are integrally formed. The number of splicing holes 4 is equal to that of the stator winding 2. The stator winding 2 is quickly spliced and connected to the stator core 1 through the cooperation of the splicing block 3, the splicing hole 4, and the limiting pressing ring 8.

[0028] Specifically, to improve the overall connection strength and connection stability of the stator winding 2, the limiting pressing ring 8 can be fixedly connected to the end face of the stator core 1 by gluing and is in limiting fit with the ring groove 7 and the opening slot 11.

[0029] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0030] Although terms such as stator core 1, stator winding 2, splicing block 3, splicing hole 4, dovetail slot 5, dovetail block 6, ring groove 7, limiting pressing ring 8, guiding cutting edge 9, guiding chamfer 10, and opening slot 11 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A highly stable split-type motor stator, comprising a stator core (1) and a plurality of stator windings (2), wherein the stator windings (2) are provided with winding grooves facilitating the winding of copper wires, and is characterized in that, The stator winding (2) is provided with a split and detachable structure with the stator core (1), and is sequentially and circumferentially spaced along the outer peripheral wall of the stator core (1). A splicing structure is provided between the stator core (1) and the stator winding (2); The splicing structure includes splicing blocks (3) extending axially outward at the corresponding side ends of the stator winding (2) and a plurality of splicing holes (4) located on the outer peripheral wall of the stator core (1) and cooperating with the splicing blocks (3); Both the splicing holes (4) and the splicing blocks (3) are provided with a "square" - shaped structure; A dovetail groove (5) for improving connection stability is opened at the lower end of the splicing block (3), and a dovetail block (6) cooperating with the dovetail groove (5) is arranged in the splicing hole (4); A ring groove (7) connected to the splicing hole (4) is opened on the upper end face of the stator core (1), and a limiting pressure ring (8) for radially limiting the stator winding (2) is inlaid and installed in the ring groove (7); An opening groove (11) for improving connection stability is opened at the upper end of the splicing block (3) and cooperates with the limiting pressure ring (8); The limiting pressure ring (8) is provided with a T - shaped structure and is in an uneven structure cooperation with the opening groove (11). A plurality of the stator windings (2) are cooperated with the limiting pressure ring (8) through the opening grooves (11) on the splicing blocks (3) to achieve radial fastening and limitation; A guiding chamfer (10) facilitating the cooperation and guiding of the limiting pressure ring (8) is provided at the notch of the opening groove (11), and a guiding cutting edge (9) facilitating the guiding cooperation of the dovetail block (6) and preventing jamming is provided on the side wall of the dovetail groove (5); The stator winding (2) and the splicing block (3) are integrally formed. The number of the splicing holes (4) is equal to that of the stator windings (2). The stator winding (2) is quickly spliced and connected to the stator core (1) through the cooperation of the splicing block (3), the splicing hole (4) and the limiting pressure ring (8); The limiting pressure ring (8) can be fixedly connected to the end face of the stator core (1) by gluing and is in limit cooperation with the ring groove (7) and the opening groove (11).

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