A motor stator structure design facilitating installation and improving performance

Abstract

The application discloses a motor stator structure design convenient to install and improving performance, which comprises a stator, a plurality of open slots are arranged on the stator, and stator teeth are formed between every two open slots; coils are arranged on the stator teeth; positioning baffles are arranged at the open ends of the open slots; the positioning baffles are connected with the stator teeth on both sides in a positioning mode; the positioning baffles position the end sides of the coils on the stator teeth, so that the coils are stably installed on the stator teeth. In the premise that the stator teeth and the stator are designed in an integrated mode, the positioning baffles are designed between the adjacent stator teeth (i.e. the open ends of the open slots); the design of the open slots facilitates the winding of the coils and improves the slot fill factor; the design of the positioning baffles guarantees the stability of the installation of the coils on the stator teeth; and the integrated design of the stator teeth and the stator guarantees the main magnetic flux of the stator, so that the electromagnetic performance of the whole stator is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of motor stator technology, and in particular to a motor stator structure design that facilitates installation and improves performance. Background Technology

[0002] Electric motors are widely used in various industries. An electric motor consists of a rotor and a stator. Multiple coils are evenly distributed on the outer or inner circumference of the stator. Currently, there are two methods for designing the coils on the stator: one is to create stator teeth by slotting them into a single piece of stator. However, this method makes direct winding or embedding of the coils difficult, and results in low slot fill factor, gaps, and a tendency for misalignment, leading to increased eddy currents in the coils. To facilitate coil winding, another method is to design the stator as a split type, dividing it into a stator yoke and multiple stator tooth modules. These tooth modules are circumferentially distributed on the outer or inner circumference of the stator yoke. All tooth modules are detachably connected to the stator yoke using a splicing structure. However, there are discontinuities between the stator yoke and the multiple tooth modules. This connection method causes discontinuities in the stator's main magnetic flux, leading to increased magnetic reluctance and consequently a decrease in the overall electromagnetic performance of the stator. Therefore, improvements to address the design defects of existing stators are urgently needed. Summary of the Invention

[0003] The purpose of this invention is to solve the problems mentioned in the background art. This invention provides a motor stator structure design that is easy to install and improves performance.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: A motor stator structure design that facilitates installation and improves performance includes a stator with multiple slots. Stator teeth are formed between pairs of slots, and coils are mounted on the stator teeth. A positioning baffle is provided at the opening end of each slot. The positioning baffle forms a positioning connection with the stator teeth on both sides. The positioning baffle positions the end side of the coil on the stator teeth, so that the coil is stably mounted on the stator teeth.

[0005] In the above-mentioned motor stator structure design that facilitates installation and improves performance, connecting slots are respectively provided on both sides of the opening end of the slot. The connecting slots on both sides of the opening end gradually narrow towards the opening end. The two sides of the positioning baffle are designed to cooperate with the connecting slots, so that the positioning baffle and the stator teeth on both sides form a positioning connection.

[0006] In the above-mentioned motor stator structure design that facilitates installation and improves performance, the connecting grooves on the upper or lower sides of the free ends of the stator teeth are formed through the connection, and the corresponding positioning baffles on both sides at the through point extend to form sensor mounting grooves.

[0007] In the above-mentioned motor stator structure design that facilitates installation and improves performance, a self-rivet point is provided on one side of the positioning baffle.

[0008] In the above-mentioned motor stator structure design that facilitates installation and improves performance, the positioning baffle is an integrated structure design.

[0009] In the above-mentioned motor stator structure design that facilitates installation and improves performance, the positioning baffle is composed of multiple positioning pieces stacked together, and each positioning piece is provided with the self-rivet point on its side.

[0010] In the above-mentioned motor stator structure design that facilitates installation and improves performance, a spacer is provided between two adjacent positioning plates, and a through hole is formed between the two adjacent positioning plates. The positioning plates are also provided with the self-rivet points.

[0011] In the above-mentioned motor stator structure design that facilitates installation and improves performance, the opening slots are evenly distributed circumferentially on the outer periphery of the stator.

[0012] In the above-mentioned motor stator structure design that facilitates installation and improves performance, the opening slots are evenly distributed circumferentially on the inner periphery of the stator.

[0013] In the above-mentioned motor stator structure design that facilitates installation and improves performance, the stator is an integral structure.

[0014] In the above-mentioned motor stator structure design that facilitates installation and improves performance, the stator is composed of multiple stacked pieces.

[0015] In the above-mentioned motor stator structure design that facilitates installation and improves performance, the coil can be installed individually on the stator teeth, or multiple coils can be connected in series and installed on multiple stator teeth respectively.

[0016] Effects of the invention: This invention integrates the stator teeth with the stator and incorporates positioning baffles between adjacent stator teeth (i.e., the opening ends of the slots). The slot design facilitates coil winding and improves slot fill factor. The positioning baffles also ensure the stability of the coil mounted on the stator teeth. Furthermore, the integrated design of the stator teeth and the stator ensures the main magnetic flux of the stator, thereby guaranteeing the electromagnetic performance of the entire stator. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the stator opening slot outer periphery arrangement (positioning plate without spacers) in Embodiment 1; Figure 2 for Figure 1 Enlarged view of part A; Figure 3 This is an exploded view of the stator opening slot outer periphery setting (the positioning plate does not have through holes) in Embodiment 1; Figure 4 This is a perspective view of the stator (with the opening slot set on the outer periphery) in Embodiment 1; Figure 5 for Figure 4 Enlarged view of part C; Figure 6 This is a perspective view of the stator opening slot outer periphery (with a spacer on the positioning plate) in Embodiment 1; Figure 7 for Figure 6 Enlarged view of part B; Figure 8 This is a perspective view of the stator opening slot inner circumference arrangement (the positioning plate has a partition) in Embodiment 1; Figure 9 This is a perspective view of the stator (with an opening slot on the inner circumference) in Embodiment 1; Figure 10 3D view of the stator integrated design; Figure 11 , Figure 12 This is a perspective view of the positioning plate in Example 1 without the partition plate. Figure 13 This is a perspective view of the positioning plate with partitions in Embodiment 1; Figure 14 , Figure 15 This is a perspective view of the integrated positioning plate design in Example 2; Figures 16 to 18 This is a schematic diagram of different installation states of the coil in this invention. Figure 19 , Figure 21 This is a schematic diagram of the present invention having a sensor mounting slot; Figure 20 for Figure 19 Enlarged view of part D; Figure 22 for Figure 21 Enlarged view of part E. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items. Example 1:

[0021] Please see Figures 1 to 13 The present invention provides a motor stator structure design that is easy to install and improves performance, including a stator 1, on which a plurality of open slots 2 are provided, and stator teeth 3 are formed between pairs of open slots 2.

[0022] like Figure 4 , Figure 9 As shown, the opening slots 2 can be evenly distributed circumferentially on the outer periphery of the stator 1 or evenly distributed circumferentially on the inner periphery of the stator 1. The location of the opening slots 2 on the outer or inner periphery of the stator can be selected as needed.

[0023] A coil 4 is provided on the stator tooth 3, and a positioning baffle 5 is provided at the opening end of the slot 2. The positioning baffle 5 is fixedly connected to the stator teeth 3 on both sides. The positioning baffle 5 positions the end side of the coil on the stator tooth 3, so that the coil 4 is stably installed on the stator tooth 3.

[0024] Specifically, connecting grooves 6 are respectively provided on both sides of the opening end of the opening groove 2. The connecting grooves 6 on both sides of the opening end of the opening groove 2 gradually narrow towards the opening end. The two sides of the positioning baffle 5 are designed to cooperate with the connecting grooves 6, so that the positioning baffle 5 and the stator teeth 3 on both sides form a positioning connection. Of course, the positioning baffle 5 can also form a positioning connection with the stator teeth 3 in other ways.

[0025] Furthermore, for ease of installation, a self-rivet point 7 is provided on one side of the positioning baffle 5.

[0026] Furthermore, in this embodiment, the positioning baffle 5 is composed of multiple positioning pieces 8 stacked together, and each positioning piece 8 is provided with the self-rivet point 7 on its side.

[0027] Furthermore, such as Figure 6 , Figure 7 , Figure 13 As shown, a spacer 9 is provided between two adjacent positioning pieces 8, forming a through hole 10 between the two adjacent positioning pieces 8. The positioning pieces 8 are also provided with the self-rivet points 7. The structural design of the positioning pieces 8 and the spacer 9 can achieve the effect of heat dissipation. Example 2:

[0028] Please see Figure 14 , Figure 15 This invention provides a motor stator structure design that is easy to install and improves performance. Unlike the first embodiment, the positioning baffle 5 is an integral structure design and is fixedly connected to the opening end of the slot 2.

[0029] like Figure 10 As shown, whether in Embodiment 1 or Embodiment 2, the stator 1 can be a one-piece structure or a structure composed of multiple stacked pieces, which can be selected according to the needs.

[0030] like Figures 16 to 18 In both Embodiment 1 and Embodiment 2, the coil 4 can be installed individually on the stator tooth 3, or multiple coils can be connected in series and installed on multiple stator teeth 3 respectively.

[0031] In either Embodiment 1 or Embodiment 2 described above, a Hall sensor needs to be installed on the stator. Please refer to [link / reference]. Figures 19 to 22 Here, the stator 1 and the positioning baffle 5 are illustrated as a sheet structure. In conjunction with the above structure, the connecting grooves 6 on the upper or lower sides of the free ends of the stator teeth 3 are connected. At this connection point, the positioning baffles 5 on both sides extend to form sensor mounting grooves 10, which further facilitates the installation design of the Hall sensor.

[0032] The foregoing has provided a detailed description of a motor stator structure design that facilitates installation and improves performance, as provided in the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions disclosed in the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A motor stator structure design that facilitates installation and improves performance, characterized in that: Includes a stator (1), which has multiple slots (2) and stator teeth (3) formed between each pair of slots (2). A coil (4) is provided on the stator teeth (3). A positioning baffle (5) is provided at the opening end of the slot (2). The positioning baffle (5) is fixedly connected to the stator teeth (3) on both sides. The positioning baffle (5) positions the end side of the coil on the stator teeth (3) so that the coil (4) is stably installed on the stator teeth (3).

2. The motor stator structure design according to claim 1, which facilitates installation and improves performance, is characterized in that: The opening slot (2) has connecting slots (6) on both sides of the opening end. The connecting slots (6) on both sides of the opening end of the opening slot (2) gradually shrink towards the opening end. The two sides of the positioning baffle (5) are designed to cooperate with the connecting slots (6), so that the positioning baffle (5) and the stator teeth (3) on both sides form a positioning connection.

3. The motor stator structure design according to claim 1, which facilitates installation and improves performance, is characterized in that: The connecting grooves (6) on the upper or lower sides of the free ends of the stator teeth (3) are formed through the grooves, and the corresponding positioning baffles (5) on both sides extend to form sensor mounting grooves (10).

4. The motor stator structure design according to claim 1, which facilitates installation and improves performance, is characterized in that: The positioning baffle (5) has a self-rivet point (7) on one side.

5. A motor stator structure design that facilitates installation and improves performance according to claims 1 to 4, characterized in that: The positioning baffle (5) is an integrated structure design.

6. A motor stator structure design that facilitates installation and improves performance according to claims 1 to 4, characterized in that: The positioning baffle (5) is composed of multiple positioning pieces (8) stacked together, and each positioning piece (8) has a self-rivet point (7) on its side.

7. The motor stator structure design according to claim 6, which facilitates installation and improves performance, is characterized in that: A spacer (9) is provided between two adjacent positioning pieces (8), and a through hole (10) is formed between the two adjacent positioning pieces (8). The positioning pieces (8) are also provided with the self-rivet points (7).

8. The motor stator structure design according to claim 1, which facilitates installation and improves performance, is characterized in that: The opening slots (2) are evenly distributed around the outer periphery of the stator (1).

9. The motor stator structure design according to claim 1, which facilitates installation and improves performance, is characterized in that: The opening slots (2) are evenly distributed around the inner periphery of the stator (1).

10. The motor stator structure design according to claim 1, which facilitates installation and improves performance, is characterized in that: The stator (1) is an integral structure.

11. The motor stator structure design according to claim 1, which facilitates installation and improves performance, is characterized in that: The stator (1) is composed of multiple stacked pieces.

12. The motor stator structure design according to claim 1, which facilitates installation and improves performance, is characterized in that: The coil (4) can be installed individually on the stator teeth (3), or multiple coils can be connected in series and installed on multiple stator teeth (3).

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