Motor stator structure
By using a modular stator structure for mechanical positioning and detachable connection, the problem of inconvenient stator assembly and maintenance has been solved, enabling high-precision and low-cost stator assembly installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU YOUNGSUN INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-24
AI Technical Summary
The existing axial flux motor stator is inconvenient to assemble and maintain, the fixture is difficult to operate, the potting compound is prone to deformation during solidification, the overall accuracy is poor, and the production cost is high.
The stator structure adopts modular assembly. Through the mechanical positioning of the stator bracket and the limiting eaves and limiting grooves, combined with the detachable connection of the limiting parts, the stator assembly can be quickly installed and stably positioned, eliminating the need for complex fixtures and potting processes.
It improves the ease of assembly and precision of stator components, simplifies maintenance procedures, and reduces production costs.
Smart Images
Figure CN224164699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor technology, and in particular to a motor stator structure. Background Technology
[0002] The motor stator is a crucial structure in an electric motor. In existing axial flux motors, individual stators are positioned using a potting process after being clamped and controlled by a fixture. However, in practice, the stator clamping is difficult to operate, the potting compound shrinks and deforms during curing, resulting in poor overall accuracy; furthermore, production time is long and process costs are high. Overall, the existing stator assembly, positioning, and maintenance are inconvenient. Utility Model Content
[0003] In order to solve the above-mentioned problems in the prior art, this utility model provides a motor stator structure that is easy to assemble, has high precision, and is easy to maintain.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A motor stator structure includes a stator support and several stator assemblies. The stator support includes a stator base and several radial ribs evenly distributed circumferentially on the outer wall of the stator base. Mounting grooves for mounting stator assemblies are formed between adjacent radial ribs. Each stator assembly includes an iron core and a coil. Both ends of the iron core extend to both sides to form limiting eaves, and grooves are formed between the limiting eaves on the same side of the iron core. The coil is fitted into the grooves. When the iron core is inserted into the mounting groove, at least part of the radial ribs on both sides of the mounting groove are located within the grooves on both sides of the iron core. The outer ends of the radial ribs are provided with limiting members to prevent the stator assemblies from detaching from the mounting groove.
[0006] By adopting the above technical solution, the stator assembly and stator support are modularly assembled. The limiting eaves position the coil on the one hand and the stator assembly axially on the other. After the stator assembly is directly installed into the mounting slot, it is radially limited by the limiting component, realizing the rapid mechanical positioning of the stator assembly. There is no need for complex fixtures or potting processes, which significantly improves the convenience and accuracy of assembly, and also facilitates the subsequent maintenance and replacement of the stator assembly.
[0007] Preferably, the mounting groove has a V-shaped cross-section, and the iron core has an isosceles trapezoidal cross-section, with the included angle between the two legs of the iron core being equal to the included angle of the mounting groove. The shape of the iron core matches the shape of the mounting groove, facilitating installation and positioning.
[0008] Preferably, each end of the radial rib is provided with radially distributed limiting grooves. One side of each limiting groove communicates with a corresponding mounting groove. The limiting protrusions at both ends of the iron core are engaged in the corresponding limiting grooves, and the outer surface of the limiting protrusions abuts against the side of the limiting groove. The cooperation between the limiting protrusions and the limiting grooves further improves the installation accuracy and positioning stability of the stator assembly.
[0009] Preferably, both ends of the radial ribs are provided with connecting holes, and the limiting member is detachably connected to the connecting holes by fasteners. This detachable connection between the limiting member and the radial ribs simplifies installation and maintenance processes, allows for quick replacement of the positioning components, and reduces maintenance costs.
[0010] Preferably, the inner end of the limiting member is provided with a V-shaped limiting groove, and the two sides of the V-shaped limiting groove respectively abut against the outer end faces of the two corresponding limiting protrusions for limiting.
[0011] Preferably, each end of the radial rib has a limiting protrusion. The side of the limiting protrusion facing the limiting member is configured as a downward slope, and the rear end of the limiting protrusion, corresponding to the downward slope, has an upward slope. When the limiting member is connected to the radial rib, the upward slope and the downward slope abut against each other. When the limiting member is connected to the radial rib, the upper and lower slopes cooperate to achieve quick self-centering and locking, reducing manual adjustment steps and further improving assembly convenience.
[0012] Preferably, a stator housing is fitted onto the outer side of the stator support, and a limiting protrusion is provided on the inner wall of one end of the stator housing, with one end of the stator support abutting against the limiting protrusion. The stator housing further protects and positions the stator support and stator assembly.
[0013] Therefore, this utility model has the advantages of convenient stator assembly, high precision, and convenient maintenance. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of one structure of the present utility model.
[0015] Figure 2 for Figure 1 Exploded view.
[0016] Figure 3 This is a schematic diagram of the stator support structure.
[0017] Figure 4 for Figure 3 Top view.
[0018] Figure 5 This is an exploded view of the stator assembly.
[0019] Figure 6 for Figure 3A magnified view of a portion of point A in the middle.
[0020] Figure 7 This is a schematic diagram showing the motor stator installed inside the stator housing. Detailed Implementation
[0021] To make the technical problem to be solved, the technical solution, and the beneficial technical effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and several exemplary embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the scope of protection of the present utility model.
[0022] It should be understood that the terms "first," "second," etc., used herein are for descriptive purposes only and should not be construed as indicating or implying relative importance, nor should they be construed as implicitly specifying the number of technical features indicated. Features specified with "first" or "second" may expressly or implicitly indicate that at least one of those features is included.
[0023] like Figures 1-6 The motor stator structure shown includes a stator support 1 and several stator assemblies 2. The stator support 1 includes a stator base 10 and several radial ribs 11 evenly distributed circumferentially on the outer wall of the stator base 10. Adjacent radial ribs 11 form mounting grooves 12 for mounting the stator assemblies 2. Each stator assembly 2 includes an iron core 20 and a coil 21. Both ends of the iron core 20 extend to both sides to form limiting eaves 200. Grooves 201 are formed between the limiting eaves 200 on the same side of the iron core 20. The coil 21 is fitted into the grooves 201. When the iron core 20 is inserted into the mounting groove 12, at least part of the radial ribs 11 on both sides of the mounting groove 12 are located within the grooves 201 on both sides of the iron core 20. The outer ends of the radial ribs 11 are provided with limiting members 3 to prevent the stator assemblies 2 from detaching from the mounting groove 12.
[0024] In some embodiments, the mounting groove 12 has a V-shaped cross-section, the iron core 20 has an isosceles trapezoidal cross-section, and the included angle between the two sides of the iron core 20 is equal to the included angle between the mounting groove 12.
[0025] Both ends of the radial rib 11 are provided with radially distributed limiting grooves 110. One side of the limiting groove 110 communicates with the corresponding mounting groove 12. The limiting eaves 200 at both ends of the iron core 20 are inserted into the corresponding limiting grooves 110, and the outer side of the limiting eaves 200 abuts against the side of the limiting groove 110. Both outer ends of the radial rib 11 are provided with connecting holes 111. The limiting member 3 is detachably connected to the connecting holes 111 by fasteners 4. In this embodiment, the fasteners are bolts, and the limiting member is provided with through holes to facilitate the bolts passing through.
[0026] In some embodiments, the inner end of the limiting member 3 is provided with a V-shaped limiting groove 30, and the two sides of the V-shaped limiting groove 30 respectively abut against the outer end faces of the two corresponding limiting eaves 200 for limiting; both ends of the edge of the radial rib 11 are provided with limiting protrusions 112, and the side of the limiting protrusion 112 facing the limiting member 3 is configured as a lower inclined surface 31. The rear end of the limiting protrusion 112 is provided with an upper inclined surface 113 corresponding to the lower inclined surface 31. When the limiting member 3 is connected to the radial rib 11, the upper inclined surface 113 abuts against the lower inclined surface 31.
[0027] like Figure 7 As shown, in some embodiments, a stator shell 5 is fitted onto the outer side of the stator support, and a limiting protrusion 50 is provided on the inner wall of one end of the stator shell 5. One end of the stator support 1 abuts against the limiting protrusion 50. The stator shell protects the stator support and stator assembly.
[0028] Referring to the accompanying drawings, the principle of this utility model is as follows: Figure 2 As shown, the stator assembly and stator support are installed in a modular fashion with mechanical positioning. When the stator assembly is installed into the mounting slot, the axial direction of each stator assembly is limited by a limiting flange that engages with a limiting groove, and the radial direction of each stator assembly is limited by a limiting member. The stator assembly is stably positioned and not easily shaken or displaced. By adopting modular assembly and mechanical positioning, complex fixtures or potting processes are eliminated, significantly improving assembly convenience and accuracy, and also facilitating subsequent maintenance and replacement of the stator assembly.
[0029] In the description of this utility model, it should be understood that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, and the other end are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the purpose of more clearly describing the technical solution of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation of this utility model.
[0030] Although specific embodiments of the present invention are described in detail herein, they are given for illustrative purposes only and should not be construed as limiting the scope of the present invention. Various substitutions, alterations, and modifications may be conceived without departing from the spirit and scope of the present invention.
Claims
1. A motor stator structure, comprising a stator support (1) and a plurality of stator assemblies (2), characterized in that, The stator support (1) includes a stator base (10) and a plurality of radial ribs (11) evenly distributed in a radial pattern on the outer wall of the stator base (10) along the circumference, with an installation groove (12) formed between adjacent radial ribs (11) for installing the stator assembly (2). The stator assembly (2) includes an iron core (20) and a coil (21). Both ends of the iron core (20) extend to both sides to form limiting eaves (200). A groove (201) is formed between the limiting eaves (200) on the same side of the iron core (20). The coil (21) is fitted into the groove (201). When the iron core (20) is installed into the mounting groove (12), the radial ribs (11) on both sides of the mounting groove (12) are at least partially located in the groove (201) of the corresponding iron core (20). The outer end of the radial rib (11) is provided with a limiting member (3) to prevent the stator assembly (2) from coming out of the mounting groove (12).
2. A motor stator structure according to claim 1, wherein The cross-section of the mounting groove (12) is V-shaped, and the cross-section of the iron core (20) is an isosceles trapezoid. The included angle between the two sides of the iron core (20) is equal to the included angle between the mounting groove (12).
3. A motor stator structure according to claim 1 or 2, characterised in that, Both ends of the radial rib (11) are provided with radially distributed limiting grooves (110). One side of the limiting groove (110) is connected to the corresponding mounting groove (12). The limiting eaves (200) at both ends of the iron core (20) are inserted into the corresponding limiting grooves (110), and the outer side of the limiting eaves (200) abuts against the side of the limiting groove (110).
4. A motor stator structure according to claim 1, wherein Both ends of the radial rib (11) are provided with connecting holes (111), and the limiting member (3) is detachably connected to the connecting holes (111) by fasteners (4).
5. A motor stator structure according to claim 4, wherein The inner end of the limiting member (3) is provided with a V-shaped limiting groove (30), and the two sides of the V-shaped limiting groove (30) respectively abut against the outer end face of the corresponding two limiting eaves (200) for limiting.
6. A motor stator structure according to claim 4 or 5, characterised in that, Both ends of the radial rib (11) are provided with limiting protrusions (112). The side of the limiting protrusion (112) facing the limiting member (3) is configured as a lower inclined surface (31). The rear end of the limiting protrusion (112) is provided with an upper inclined surface (113) corresponding to the lower inclined surface (31). When the limiting member (3) is connected to the radial rib (11), the upper inclined surface (113) abuts against the lower inclined surface (31).
7. A motor stator structure as claimed in claim 1, wherein The stator support is fitted with a stator shell (5) on the outside. A limiting protrusion (50) is provided on the inner wall of one end of the stator shell (5). One end of the stator support (1) abuts against the limiting protrusion (50).