A stator sheet structure of a marine electric machine
By introducing sliding grooves and plug-in rods into the stator lamination structure of marine motors, the problem of stator loosening in swaying environments is solved, ensuring stable operation of the motor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 长江九江航道处
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-19
AI Technical Summary
Marine motor stators are prone to loosening in swaying environments, leading to malfunctions, and existing technologies are insufficient for effective fixation.
The stator lamination structure design includes sliding grooves and extension blocks inside the housing. The stator is fixed inside the housing by plug-in rods and nuts, and the arc-shaped parts and buffer cavities ensure the winding tension.
This achieves stable installation of the stator in the swaying environment of a ship, avoiding loosening and ensuring normal operation of the motor.
Smart Images

Figure CN224385156U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor stator technology, and more specifically to a stator lamination structure for a marine motor. Background Technology
[0002] The stator laminations are a crucial component of a marine motor's stator. They are typically made of magnetically conductive materials such as silicon steel sheets. The shape and size of the stator laminations are carefully designed, and they are stacked together to form the stator core. The stator laminations possess excellent magnetic permeability, effectively reducing magnetic resistance in the magnetic circuit and thus improving the motor's efficiency. They play a critical role in fixing the windings and establishing the magnetic field during marine motor operation, and are of paramount importance for the normal and stable operation of the marine motor. Furthermore, they must adapt to the unique working environment of a ship, such as the potential exposure to humidity, high salinity, and vibration.
[0003] According to the publication (announcement) number: CN201230231Y, publication (announcement) date: 2009-04-29, a motor stator is disclosed, including a magnetic pole block. The magnetic pole block includes a yoke steel sheet and a toothed steel sheet extending inward from the yoke steel sheet. A coil is wound on the magnetic pole block, and there are several independent magnetic pole blocks. These several independent magnetic pole blocks are coupled together to form an annular iron core, and a steel ring is fixed on the outer periphery of the annular iron core. The two sides of the yoke steel sheet on the magnetic pole block are V-shaped surfaces. One side of the two sides of the yoke steel sheet on the magnetic pole block has a concave or convex surface, and the other side has a convex or concave surface. The two sides of the yoke steel sheet on the magnetic pole block have concave or convex surfaces that are symmetrical with respect to the toothed steel sheet. The two sides of the yoke steel sheet on the adjacent magnetic pole block have convex or concave surfaces that are symmetrical with respect to the toothed steel sheet.
[0004] As can be seen from the aforementioned patents and prior art, the motor stator is fixed inside the motor housing. However, when used on a ship, the ship will continuously sway with the waves, causing the motor stator to loosen its fixation inside the housing, leading to malfunctions in the ship. Utility Model Content
[0005] The purpose of this invention is to provide a stator lamination structure for a marine motor, thereby preventing the stator from becoming loose due to shaking while the motor is on board.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a stator lamination structure for a marine motor, comprising a frame, a housing mounted on the frame, a stator disposed within the housing, a plurality of extension blocks arranged in a circumferential array on the stator, a plurality of sliding grooves arranged in a circumferential array within the housing, side plates symmetrically arranged on both sides of the extension blocks, the extension blocks sliding within the sliding grooves, insertion holes provided on the extension blocks, a back baffle plate disposed on the back of the housing, a plurality of insertion rods arranged in a circumferential array on the back baffle plate, and nuts disposed on the insertion rods.
[0007] Preferably, the back baffle has multiple insertion slots arranged in a circular array, and the insertion rod is inserted into the insertion slots.
[0008] Preferably, the stator is provided with a plurality of extension plates arranged in a circumferential array, with a predetermined gap between each pair of extension plates to form a placement cavity.
[0009] Preferably, the extension plate is provided with a support plate, the support plate is provided with an arc-shaped component, and the arc-shaped component has a buffer cavity.
[0010] Preferably, the stator is provided with a rotor, and the rotor is provided with an output shaft.
[0011] Preferably, the housing is provided with a positive baffle.
[0012] Preferably, the plug rod is a threaded rod.
[0013] In the above technical solution, the stator lamination structure of the marine motor provided by this utility model has the following beneficial effects: the housing is fixed by the frame, the stator is installed by the housing, and the stator is installed in the housing by multiple extension blocks on the stator and multiple sliding grooves in the housing. The stator is installed in the housing by the side plates on the multiple extension blocks. When the stator is fixed in the housing, it is limited. The insertion rod is inserted by the insertion hole on the back of the extension block. The stator is fixed in the housing by the insertion rod. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0015] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;
[0016] Figure 2This is a schematic diagram of the internal structure of the housing provided in an embodiment of the present utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the inner back of the housing provided in an embodiment of the present utility model;
[0018] Figure 4 A schematic diagram of the back of the housing provided in an embodiment of this utility model;
[0019] Figure 5 This is an enlarged schematic diagram of part A of the present invention.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Housing; 10. Rotor; 11. Frame; 12. Positive baffle; 13. Output shaft; 14. Stator; 15. Extension plate; 16. Placement cavity; 17. Bearing plate; 18. Arc-shaped component; 181. Buffer cavity; 19. Extension block; 20. Side plate; 21. Sliding groove; 22. Back baffle; 23. Insertion groove; 24. Insertion hole; 25. Insertion rod; 26. Nut. Detailed Implementation
[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0023] like Figure 1-5 As shown, a stator lamination structure for a marine motor includes a frame 11, a housing 1 mounted on the frame 11, a stator 14 mounted inside the housing 1, a plurality of extension blocks 19 arranged in a circumferential array on the stator 14, a plurality of sliding grooves 21 arranged in a circumferential array inside the housing 1, side plates 20 symmetrically arranged on both sides of the extension blocks 19, the extension blocks 19 sliding within the sliding grooves 21, insertion holes 24 on the extension blocks 19, a back baffle 22 on the back of the housing 1, a plurality of insertion rods 25 arranged in a circumferential array on the back baffle 22, and nuts 26 on the insertion rods 25.
[0024] Specifically, multiple extension blocks 19 on the stator 14 and side plates 20 on the extension blocks 19 are inserted into multiple sliding grooves 21 inside the housing 1, and the stator 14 is slid to the top. Then, the insertion rod 25 is inserted into the insertion hole 24 on the extension block 19, and the nut 26 is turned to fix the stator 14 inside the housing 1. At the same time, the side plate 20 also limits the position of the stator 14 inside the housing 1.
[0025] In the above scheme, the housing 1 is fixed by the frame 11, and the stator 14 is installed by the housing 1. This is achieved by multiple extension blocks 19 on the stator 14 and multiple sliding grooves 21 inside the housing 1. The stator 14 is installed inside the housing 1 by the side plates 20 on the multiple extension blocks 19. When the stator 14 is fixed inside the housing 1, it is limited. The insertion rod 25 is inserted through the insertion hole 24 on the back of the extension block 19. The stator 14 is fixed inside the housing 1 by the insertion rod 25.
[0026] As a further embodiment of this utility model, according to Figure 1 and Figure 2 As shown, the back baffle 22 has multiple insertion slots 23 arranged in a circular array, and the insertion rod 25 is inserted into the insertion slots 23.
[0027] Specifically, the plug rod 25 is inserted into the plug slot 23 on the back baffle 22 to fix the stator 14 inside the housing 1.
[0028] As a further embodiment of this utility model, according to Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the stator 14 is provided with a plurality of extension plates 15 arranged in a circular array, and a predetermined gap is left between each two extension plates 15 to form a placement cavity 16.
[0029] Furthermore, a support plate 17 is provided on the extension plate 15, and an arc-shaped component 18 is provided on the support plate 17, with a buffer cavity 181 opened on the arc-shaped component 18.
[0030] Specifically, the wire is wound in the placement cavity 16 of the stator 14, and then wound into the buffer cavity 181 for further winding. At the same time, the arc-shaped member 18 and the buffer cavity 181 ensure tension during winding through the arc shape of the arc-shaped member 18 and the elasticity of the buffer cavity 181.
[0031] As a further embodiment of this utility model, according to Figure 1 As shown, a rotor 10 is installed inside the stator 14, and an output shaft 13 is installed on the rotor 10.
[0032] Furthermore, a positive baffle 12 is provided on the housing 1.
[0033] Specifically, the rotation of rotor 10 drives the output shaft 13 to rotate, while the motor is protected by positive baffle 12.
[0034] Working principle: The wire is wound in the placement cavity 16 of the stator 14, and then wound into the buffer cavity 181. At the same time, the arc-shaped part 18 and the buffer cavity 181 ensure tension during winding through the arc shape of the arc-shaped part 18 and the elasticity of the buffer cavity 181. Then, the multiple extension blocks 19 on the stator 14 and the side plates 20 on the extension blocks 19 are inserted into the multiple sliding grooves 21 in the housing 1. The stator 14 is slid to the top and the insertion rod 25 is inserted into the insertion groove 23 on the back baffle 22. Then, the insertion rod 25 is inserted into the insertion hole 24 on the extension block 19. Then, the nut 26 is turned to fix the stator 14 in the housing 1. At the same time, the side plate 20 also limits the position of the stator 14 in the housing 1.
[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A stator sheet structure of a marine electric machine, characterized by, The device includes a frame (11), on which a housing (1) is provided. A stator (14) is provided inside the housing (1). Multiple extension blocks (19) arranged in a circular array are provided on the stator (14). Multiple sliding grooves (21) arranged in a circular array are provided inside the housing (1). Side plates (20) are symmetrically provided on both sides of the extension blocks (19). The extension blocks (19) slide in the sliding grooves (21). Insertion holes (24) are provided on the extension blocks (19). A back baffle (22) is provided on the back of the housing (1). Multiple insertion rods (25) arranged in a circular array are provided on the back baffle (22). Nuts (26) are provided on the insertion rods (25).
2. A stator sheet structure of a marine electric machine according to claim 1, characterized in that, The back panel (22) has multiple insertion slots (23) arranged in a circular array, and the insertion rod (25) is inserted into the insertion slots (23).
3. A stator sheet structure of a marine electric machine according to claim 1, characterized in that, The stator (14) is provided with a plurality of extension plates (15) arranged in a circular array, and a predetermined gap is left between each two extension plates (15) to form a placement cavity (16).
4. A stator sheet structure of a marine electric machine according to claim 3, characterized in that, The extension plate (15) is provided with a support plate (17), the support plate (17) is provided with an arc-shaped component (18), and the arc-shaped component (18) is provided with a buffer cavity (181).
5. A stator sheet structure of a marine electric machine according to claim 1, characterized in that, The stator (14) is provided with a rotor (10), and the rotor (10) is provided with an output shaft (13).
6. A stator sheet structure of a marine electric machine according to claim 1, characterized in that, A positive baffle (12) is provided on the housing (1).
7. A stator sheet structure of a marine electric machine according to claim 1, characterized in that, The plug rod (25) is a threaded rod.