Adjustable stator punching sheet of motor

Abstract

The utility model relates to an adjustable stator punching sheet of a motor, which comprises an annular punching sheet body, and opposite arrangement areas are arranged on the inner circle edge of the punching sheet body; a plurality of stator grooves which are uniformly distributed at intervals are formed in the arrangement areas, the adjacent stator grooves are mutually isolated through spacers, inner bulges are arranged on the two opposite side edges of groove openings of the stator grooves towards the inner sides, and the stator grooves in the two arrangement areas are symmetrically arranged; and when the plurality of punching sheet bodies are overlapped, the arrangement area is provided with adjusting filler strips which penetrate through all the stator slots corresponding to the vertical positions. According to the invention, the power of the motor can be adjusted within a limited range under the condition of saving raw material consumables.

Description

Technical Field

[0001] This application relates to the field of motor stators, and more particularly to an adjustable stator lamination for a motor. Background Technology

[0002] Generally, the stator of a motor is formed by stacking multiple layers / sheets of adjustable stator laminations. Typically, the thickness of the adjustable stator laminations is relatively thin, which facilitates both manufacturing and maintenance.

[0003] The more traditional motor stator laminations include a stator yoke, which is a first ring; multiple stator teeth, each connected to the inner wall of the first ring, and the multiple stator teeth are arranged sequentially at intervals around the center of the first ring; and a stator slot is formed between any two adjacent stator teeth.

[0004] However, the inventors believe that if the power of the motor needs to be adjusted within a limited range during the use of this type of motor stator lamination, the stator and rotor can only be reprocessed, and it is not possible to make adjustments on the original basis, which also results in a large consumption of raw materials. Utility Model Content

[0005] In order to achieve adjustment of motor power within a limited range while saving raw materials and consumables.

[0006] This application provides an adjustable stator lamination for a motor, employing the following technical solution:

[0007] An adjustable stator lamination for a motor includes an annular lamination body with opposing arrangement areas on the inner edge of the lamination body; multiple stator slots are spaced apart and evenly distributed within the arrangement areas, adjacent stator slots are separated from each other by spacers, and the opposite two sides of the slot opening of the stator slots are provided with inward protrusions, and the stator slots in the two arrangement areas are symmetrically arranged; when multiple lamination bodies are stacked, the arrangement areas are provided with adjusting pads that pass through all the stator slots corresponding to the vertical position.

[0008] In some embodiments, the distance between the opposite sides of the stator slot gradually increases from the slot opening to the slot bottom, and the adjusting shim is located at the bottom of the stator slot.

[0009] In some embodiments, the end face of the adjusting shim toward the bottom of the stator slot is in close contact with the bottom of the stator slot, and the end face of the adjusting shim toward the slot opening is arc-shaped, or the end face of the adjusting shim toward the slot opening includes a straight section and arc-shaped sections located on both sides of the straight section.

[0010] In some embodiments, the adjusting shim is interference-fitted with the stator slot.

[0011] In some embodiments, four straight cut edges are evenly distributed along the circumference of the outer edge of the lamination body, and weld grooves are provided on the outer edge of the lamination body between the straight cut edges and the two adjacent straight cut edges.

[0012] In some embodiments, a welding protrusion is provided in the middle of the bottom of the welding groove, and the highest point of the welding protrusion is close to or flush with the opening of the welding groove.

[0013] In some embodiments, the two sides of the weld groove are provided with strip grooves on the side facing the bottom end face and strip protrusions on the side facing the top end face. When multiple lamination bodies are stacked, the strip protrusion of each lamination body is adapted to the strip groove corresponding to the position of the previous lamination body.

[0014] In some embodiments, the lamination body is provided with at least one mounting hole, and each mounting hole has an annular groove on the side facing the bottom end face and an annular protrusion on the side facing the top end face. When multiple lamination bodies are stacked, the annular protrusion of each lamination body is adapted to the annular groove corresponding to the position of the previous lamination body.

[0015] In summary, this application includes at least one of the following beneficial technical effects: by improving the structure of the lamination body, and by using a relatively large stator slot and adjusting shims in combination, the area inside the stator slot can be controlled by adjusting shims of different sizes according to actual needs. In this way, the power of the motor can be adjusted within a limited range without replacing a large number of lamination bodies. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an adjustable stator lamination for a motor in an embodiment of this application.

[0017] Figure 2 This is a front structural schematic diagram of an adjustable stator lamination for a motor according to an embodiment of this application.

[0018] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of section AA.

[0019] Figure 4 yes Figure 3 A magnified view of part A in the diagram.

[0020] Figure 5 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle BB section.

[0021] Figure 6 yes Figure 5 A magnified view of part B in the diagram.

[0022] Explanation of reference numerals in the attached drawings: 1. Lamination body; 2. Stator slot; 3. Spacer; 4. Inner protrusion; 5. Adjusting shim; 6. Straight cut edge; 7. Weld groove; 8. Welding protrusion; 9. Strip protrusion; 10. Strip groove; 11. Mounting hole; 12. Annular groove; 13. Annular protrusion. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1 to 6 This application will be described in further detail.

[0024] This application discloses an adjustable stator lamination for a motor, referring to... Figure 1 , 2 It includes a ring-shaped lamination body 1, with opposing arrangement areas on the inner edge of the lamination body 1; multiple stator slots 2 are arranged in the arrangement areas at intervals and evenly distributed, and adjacent stator slots 2 are isolated from each other by spacers 3. The opposite two sides of the slot opening of the stator slot 2 are provided with inward protrusions 4, and the stator slots 2 in the two arrangement areas are symmetrically arranged.

[0025] In this embodiment, in order to save raw materials and consumables while adjusting the power of the motor within a limited range, the surface area of ​​the stator slot 2 of the original lamination body 1 can be enlarged. When multiple lamination bodies 1 are stacked, the arrangement area is provided with adjusting shims 5 that pass through all the stator slots 2 corresponding to the vertical position. The size of the adjusting shims 5 can be customized according to actual needs, and it has good versatility among lamination bodies 1 of the same series.

[0026] The distance between the two opposite sides of the stator slot 2 gradually increases from the slot opening to the slot bottom. The adjusting shim 5 is located at the bottom of the stator slot 2. The end face of the adjusting shim 5 facing the bottom of the stator slot 2 is in close contact with the bottom of the stator slot 2. The end face of the adjusting shim 5 facing the slot opening is arc-shaped, or the end face of the adjusting shim 5 facing the slot opening includes a straight section and arc-shaped sections located on both sides of the straight section. Under normal circumstances, in order to ensure the stability of the equipment, the adjusting shim 5 and the stator slot 2 are interference-fitted.

[0027] In this embodiment, four straight cut edges 6 are evenly distributed along the circumference of the outer edge of the lamination body 1. Weld grooves 7 are provided on the outer edge of the lamination body 1 between the straight cut edges 6 and the two adjacent straight cut edges 6. A welding protrusion 8 is provided in the middle of the bottom of the welding groove 7. The highest point of the welding protrusion 8 is close to the groove opening of the welding groove 7 or flush with the groove opening of the welding groove 7. (Refer to...) Figure 3 , 4Both sides of the weld groove 7 have strip-shaped grooves 10 on the side facing the bottom end and strip-shaped protrusions 9 on the side facing the top end. When multiple lamination bodies 1 are stacked, the strip-shaped protrusions 9 of each lamination body 1 are matched with the strip-shaped grooves 10 corresponding to the positions of the previous lamination body 1. This improves the stability and firmness between the stacked laminations during the welding process. (Refer to...) Figure 5 , 6 Meanwhile, in order to better increase stability and firmness, at least one mounting hole 11 is provided on the stamping body 1. The mounting hole 11 is provided with an annular groove 12 on the side facing the bottom end face and an annular protrusion 13 on the side facing the top end face. When multiple stamping bodies 1 are stacked, the annular protrusion 13 of each stamping body 1 is adapted to the annular groove 12 corresponding to the position of the previous stamping body 1.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electric machine adjustable stator lamination comprising a lamination body (1) in the form of a ring, characterized in that, The inner edge of the punching piece body (1) is provided with oppositely arranged regions; a plurality of stator slots (2) are arranged in the regions with intervals and uniform distribution, the adjacent stator slots (2) are mutually isolated by the spacers (3), the opposite sides of the slot opening of the stator slot (2) are both provided with inner protrusions (4) towards the inner side, and the stator slots (2) in the two regions are symmetrically arranged; when a plurality of punching piece bodies (1) are stacked, the regions are provided with adjusting gasket strips (5) penetrating all the stator slots (2) at corresponding vertical positions.

2. An electric machine adjustable stator lamination according to claim 1, characterized in that, The distance between the opposite sides in the stator slot (2) gradually increases from the slot opening to the slot bottom, and the adjusting gasket strip (5) is located at the slot bottom of the stator slot (2).

3. An electric machine adjustable stator lamination according to claim 2, characterized in that, The end face of the adjusting gasket strip (5) towards the slot bottom of the stator slot (2) abuts against the slot bottom of the stator slot (2), the end face of the adjusting gasket strip (5) towards the slot opening is arc-shaped, or the end face of the adjusting gasket strip (5) towards the slot opening includes a flat section and arc-shaped sections on both sides of the flat section.

4. An electric machine adjustable stator lamination according to claim 1, characterized in that, The adjusting gasket strip (5) and the stator slot (2) are in interference fit.

5. A motor adjustable stator lamination as set forth in claim 1, wherein, The outer edge of the punching piece body (1) is circumferentially provided with four straight cutting edges (6), and the punching piece body (1) outer edge between the straight cutting edges (6) and the adjacent two straight cutting edges (6) is provided with a welding groove (7).

6. A motor adjustable stator lamination according to claim 5, wherein, The welding protrusion (8) is arranged in the middle of the groove bottom of the welding groove (7), and the highest point of the welding protrusion (8) is close to or flush with the slot opening of the welding groove (7).

7. An electric machine adjustable stator lamination according to claim 6, characterized in that The side of the two side edges of the welding groove (7) towards the bottom end face is provided with a strip-shaped embedding groove (10), and the side towards the top end face is provided with a strip-shaped protrusion (9), and when a plurality of punching piece bodies (1) are stacked, the strip-shaped protrusion (9) of each punching piece body (1) is matched with the strip-shaped embedding groove (10) of the previous punching piece body (1) at the corresponding position.

8. A motor adjustable stator lamination as set forth in claim 1, characterized by The punching piece body (1) is provided with at least one mounting hole (11), the side of the mounting hole (11) towards the bottom end face is provided with an annular embedding groove (12), and the side towards the top end face is provided with an annular protrusion (13), and when a plurality of punching piece bodies (1) are stacked, the annular protrusion (13) of each punching piece body (1) is matched with the annular embedding groove (12) of the previous punching piece body (1) at the corresponding position.

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