Stator of motor and motor

Abstract

The utility model discloses a stator of a motor and the motor, and the stator of the motor comprises a plurality of stator iron cores which are disposed around the axis of the stator. The plurality of insulating frameworks are arranged corresponding to the plurality of stator iron cores, and the insulating frameworks are arranged on the corresponding stator iron cores in a sleeving manner; the plurality of winding coils are arranged corresponding to the plurality of insulating frameworks, and at least one winding coil is wound on the corresponding insulating framework; and the plurality of fixing pieces are arranged corresponding to the plurality of insulating frameworks, and the fixing pieces are used for connecting the insulating frameworks so as to fix the outgoing line of the winding coil. According to the invention, the fixing part and the insulating framework are correspondingly arranged, so that the outgoing line of the winding coil can be directly fixed on the insulating framework, the wire arranging and binding process is simplified, the manual operation is reduced, the wire arranging and binding efficiency is improved, and the production efficiency is further improved.

Description

Technical Field

[0001] This application relates to the field of electric motor technology, and in particular to a stator and motor of an electric motor. Background Technology

[0002] In the motor manufacturing process, the design and function of the stator winding frame have a direct impact on production efficiency and product quality. Traditional winding frames are mainly used for insulation. After the winding is completed on the winding frame, subsequent work such as wire arrangement, binding, and fixing is required.

[0003] Existing winding skeleton structures are typically used to support winding, but steps such as wire arrangement and binding require manual operation, resulting in low efficiency and consequently low production efficiency. Utility Model Content

[0004] This application mainly provides a stator and motor for an electric motor, which solves the problem of low efficiency in wire management and binding.

[0005] This application provides a stator for an electric motor, comprising:

[0006] Multiple stator cores are arranged around the axis of the stator;

[0007] Multiple insulating frames are provided corresponding to multiple stator cores, and the insulating frames are sleeved on the corresponding stator cores;

[0008] Multiple winding coils are provided, and the multiple winding coils are correspondingly arranged with multiple insulating frames, and at least one winding coil is wound on the corresponding insulating frame;

[0009] Multiple fasteners are provided, and the multiple fasteners are correspondingly provided with multiple insulating frames. The fasteners are used to connect the insulating frames to fix the leads of the winding coil.

[0010] The insulating frame includes a winding portion, a first connecting portion, and a second connecting portion. The two ends of the winding portion are respectively connected to the first connecting portion and the second connecting portion, and the winding coil is wound on the corresponding winding portion.

[0011] The fixing member is connected to the first connecting part and the second connecting part respectively, so as to fix the lead wire of the winding coil wound on the winding part.

[0012] The first connecting part is provided with a first opening, and the second connecting part is provided with a second opening. The first opening is located at the end of the first connecting part away from the winding part, and the second opening is located at the end of the second connecting part away from the winding part. The fastener is connected to the first opening and the second opening respectively.

[0013] The fastener includes a main body, a third connecting part, and a fourth connecting part. One end of the third connecting part is connected to one end of the main body, and one end of the fourth connecting part is connected to the other end of the main body.

[0014] The other end of the third connecting part is configured to engage with the first opening, and the other end of the fourth connecting part is configured to engage with the second opening, so that the fastener is connected to the insulating frame.

[0015] The length of the first connecting part is less than the length of the second connecting part.

[0016] The length of the third connecting part is greater than the length of the fourth connecting part.

[0017] The third connecting part engages with the first opening of the first connecting part, and the fourth connecting part engages with the second opening of the second connecting part, so that the main body and the winding part are arranged parallel to each other.

[0018] This application also provides an electric motor, including the stator as described above.

[0019] The beneficial effects of this application are as follows: The stator of the motor provided by this application includes multiple stator cores, multiple insulating frames, multiple winding coils, and multiple fixing components. The multiple insulating frames are correspondingly arranged with the multiple stator cores and are fitted onto the corresponding stator cores. The multiple winding coils are correspondingly arranged with the multiple insulating frames and are wound onto the corresponding insulating frames. The multiple fixing components are correspondingly arranged with the multiple insulating frames, and are used to connect to the insulating frames to fix the leads of the winding coils. By correspondingly arranging the fixing components with the insulating frames, this application allows for direct fixing of the leads of the winding coils onto the insulating frames, simplifying the wire handling and binding process, reducing manual operation, improving the efficiency of wire handling and binding, and thus improving production efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the stator of an electric motor provided in this application;

[0022] Figure 2 yes Figure 1 A schematic diagram of one embodiment of a structure comprising multiple stator cores, multiple insulating frames, and multiple winding coils;

[0023] Figure 3 yes Figure 1 A schematic diagram of the structure of an embodiment of the middle stator core;

[0024] Figure 4 yes Figure 1 A schematic diagram of one embodiment of the stator core, insulating frame, and winding coils;

[0025] Figure 5 yes Figure 1 A schematic diagram of one embodiment of the fixing member. Detailed Implementation

[0026] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0028] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0031] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0032] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0033] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a connection between two components or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0034] Existing winding skeleton structures are typically used to support winding, but steps such as wire arrangement and binding require manual operation, resulting in low efficiency and consequently low production efficiency.

[0035] This application provides a stator for an electric motor; please refer to [link / reference]. Figures 1-3 As shown, Figure 1 This is a schematic diagram of the structure of an embodiment of the stator of an electric motor provided in this application; Figure 2 yes Figure 1 A schematic diagram of one embodiment of a structure comprising multiple stator cores, multiple insulating frames, and multiple winding coils; Figure 3 yes Figure 1 A schematic diagram of the structure of one embodiment of the stator core. The stator 1 of the motor in this embodiment includes multiple stator cores 10, multiple insulating frames 20, multiple winding coils 30, and multiple fixing members 40.

[0036] The stator core 10 is the magnetic material part inside the stator 1. Its main function is to provide a magnetic circuit so that the rotor of the motor can generate a rotating magnetic field after being energized.

[0037] The stator core 10 is typically made of magnetic materials, such as silicon steel sheets or electrical steel sheets. These materials have good magnetic permeability and high saturation magnetic induction, enabling efficient conduction of magnetic flux. The stator core 10 can be cylindrical, rectangular, or other specific shapes to suit different types of motor designs. For example... Figure 3 As shown, the stator core 10 is I-shaped.

[0038] Multiple stator cores 10 are arranged around the axis of the stator 1; that is, in the stator 1 of the motor, multiple stator cores 10 are arranged around the central axis of the stator 1. The number of stator cores 10 in the stator 1 includes, but is not limited to, 10, 12, 14, 16, etc. For example... Figure 1 As shown, 12 stator cores 10 are arranged around the axis of stator 1.

[0039] The insulating frame 20 is a component used to support and protect the winding coil 30. It is made of insulating material to ensure the electrical insulation of the winding coil 30.

[0040] Multiple insulating frames 20 are correspondingly provided with multiple stator cores 10, and the insulating frames 20 are sleeved on the corresponding stator cores 10.

[0041] Optionally, in the stator 1 of the motor, each stator core 10 is provided with a corresponding insulating frame 20, which is fitted onto the corresponding stator core 10. For example Figure 1 As shown, stator 1 has 12 stator cores, and there are 12 corresponding insulating frames 20. The insulating frames 20 are fitted on the stator cores 10.

[0042] A winding coil 30 refers to a coil structure made of one or more conductors. Winding coils 30 include, but are not limited to, enameled wire, fiber-wrapped wire, and film-wrapped wire.

[0043] Multiple winding coils 30 are correspondingly arranged with multiple insulating frames 20, and at least one winding coil 30 is wound on the corresponding insulating frame 20.

[0044] Optionally, in the stator 1 of the motor, each winding coil 30 corresponds to an insulating frame 20, and at least one winding coil 30 is wound on the corresponding insulating frame 20. In other embodiments, multiple winding coils 30 are wound on the corresponding insulating frames 20.

[0045] The fastener 40 refers to the mechanical component in the stator 1 of the motor used to fix the insulating frame 20 together with the lead wire of the winding coil 30.

[0046] Multiple fasteners 40 are provided corresponding to multiple insulating frames 20. The fasteners 40 are used to connect the insulating frames 20 to fix the leads of the winding coil 30.

[0047] The lead wires of the winding coil 30 refer to the wires extending from the winding coil 30. Their main function is to connect the winding coil 30 to the external circuit of the motor so as to input and output current.

[0048] Optionally, in the stator 1 of the motor, each insulating frame 20 is provided with a corresponding fastener 40, and the fastener 40 is connected to the insulating frame 20. The connection methods between the fastener 40 and the insulating frame 20 include, but are not limited to, snap-fit, plug-in, riveting, welding, etc.

[0049] Specifically, the insulating frame 20 is fitted onto the corresponding stator core 10. After the winding coil 30 is wound on the corresponding insulating frame 20, the fixing member 40 is connected to the insulating frame 20 to fix the lead wire of the winding coil 30.

[0050] In this embodiment, by setting the fixing member 40 corresponding to the insulating frame 20, the lead wire of the winding coil 30 can be directly fixed on the insulating frame 20, which simplifies the wire management and binding process, reduces manual operation, improves the efficiency of wire management and binding, and thus improves production efficiency.

[0051] According to some embodiments of this application, please refer to Figure 4 As shown, Figure 4 yes Figure 1 A schematic diagram of one embodiment of the stator core, insulating frame, and winding coil. In this embodiment, the insulating frame 20 includes a winding portion 21, a first connecting portion 22, and a second connecting portion 23. The two ends of the winding portion 21 are respectively connected to the first connecting portion 22 and the second connecting portion 23, and the winding coil 30 is wound on the corresponding winding portion 21.

[0052] The winding portion 21 refers to the part of the insulating frame 20 used for winding the winding coil 30. The winding portion 21 is the main part of the insulating frame 20, usually in the shape of a cylinder or column, and is designed to support the winding of the winding coil 30.

[0053] The first connecting part 22 and the second connecting part 23 refer to the structures or positions on the insulating frame 20 used for connecting external structures or external components.

[0054] Optionally, the first connecting portion 22 is one end of the insulating frame 20 and is connected to the winding portion 21; the second connecting portion 23 is the other end of the insulating frame 20, opposite to the first connecting portion 22, and is connected to the winding portion 21; that is, both ends of the winding portion 21 are connected to the first connecting portion 22 and the second connecting portion 23, respectively. For example Figure 4As shown, the first connecting part 22 and the second connecting part 23 are located at both ends of the insulating frame 20 and protrude from the winding part 21. After the winding part 21 is completed, the thickness of the winding coil 30 is less than or equal to the length of the first connecting part 22 and / or the second connecting part 23.

[0055] The shapes of the first connecting part 22 and the second connecting part 23 include, but are not limited to, hook-shaped, fork-shaped, and straight-shaped. For example... Figure 4 As shown, the first connecting part 22 and the second connecting part 23 are flat plate-like structures.

[0056] Optionally, a fifth connecting portion (not shown) and a sixth connecting portion (not shown) are provided on the side of the insulating frame 20 away from the first connecting portion 22 and the second connecting portion 23; wherein the fifth connecting portion is provided corresponding to the first connecting portion 22, and the sixth connecting portion is provided corresponding to the second connecting portion 23. In this case, the insulating frame 20 has an I-shaped form.

[0057] In this embodiment, by fixing the winding coil 30 on the winding part 21 and connecting both ends of the winding part 21 to the first connecting part 22 and the second connecting part 23 respectively, a stable structure is formed, which helps to improve the reliability and durability of the motor during operation.

[0058] According to some embodiments of this application, the fixing member 40 is connected to the first connecting part 22 and the second connecting part 23 respectively, so as to fix the lead wire of the winding coil 30 wound on the winding part 21.

[0059] In some embodiments, the first connecting portion 22 and the second connecting portion 23 are structures on the insulating frame 20 that are connected to the fastener 40.

[0060] Specifically, the fixing member 40 connects the first connecting part 22 and the second connecting part 23 at both ends of the winding part 21 so that the fixing member 40 is connected to the insulating frame 20; at this time, the fixing member 40 can fix the lead wire of the winding coil 30 wound on the winding part 21.

[0061] In this embodiment, the lead wire of the winding coil 30 is fixed by the fixing member 40, which ensures a stable and reliable electrical connection between the winding coil 30 and the external circuit of the motor, and reduces the risk of poor contact or wire breakage.

[0062] According to some embodiments of this application, the first connecting part 22 is provided with a first opening 221, and the second connecting part 23 is provided with a second opening 231. The first opening 221 is located at the end of the first connecting part 22 away from the winding part 21, and the second opening 231 is located at the end of the second connecting part 23 away from the winding part 21. The fixing member 40 is connected to the first opening 221 and the second opening 231 respectively.

[0063] An opening refers to a cavity or channel in a porous solid that connects to the outside world. Openings include, but are not limited to, through holes, blind holes, threaded holes, and tapered holes.

[0064] Optionally, the first opening 221 is a through hole on the first connecting portion 22, located at the end of the first connecting portion 22 away from the winding portion 21; the second opening 231 is a through hole on the second connecting portion 23, located at the end of the second connecting portion 23 away from the winding portion 21, such as... Figure 4 As shown.

[0065] Furthermore, the fifth and sixth connecting portions of the insulating frame 20 are provided with openings, specifically as follows: Figure 2 As shown.

[0066] The connection methods between the fixing member 40 and the first opening 221 and the second opening 231 include, but are not limited to, threaded connection, snap-fit, and plug-in connection. Optionally, the fixing member 40 is connected to the first connecting part 22 and the second connecting part 23 through the first opening 221 and the second opening 231 respectively, and the fixing member 40 fixes the lead wire of the winding coil 30 wound on the winding part 21.

[0067] In other embodiments, the fixing member 40 can be connected to the openings on the fifth connecting part and the sixth connecting part respectively, in which case the lead wire of the winding coil 30 wound on the winding part 21 can be fixed.

[0068] In this embodiment, a first opening 221 and a second opening 231 are respectively provided in the first connecting part 22 and the second connecting part 23, and connected by a fastener 40. This design allows the fastener 40 to be directly connected to the opening, which simplifies the assembly process. Since the position and size of the opening can be precisely processed in advance, the assembly speed is accelerated, the efficiency of wire management and binding is improved, and thus the production efficiency is improved.

[0069] According to some embodiments of this application, please refer to Figure 5 As shown, Figure 5 yes Figure 1 A schematic diagram of the structure of one embodiment of the fastener. The fastener 40 in this embodiment includes a main body 41, a third connecting part 42 and a fourth connecting part 43. One end of the third connecting part 42 is connected to one end of the main body 41, and one end of the fourth connecting part 43 is connected to the other end of the main body 41.

[0070] Optionally, the main body 41 is a strip structure with a length equal to the distance between the first connecting part 22 and the second connecting part 23; the main body 41 is the main part of the fixing member 40 used to fix the lead wire of the winding coil 30.

[0071] The third connecting portion 42 and the fourth connecting portion 43 are structures on the fastener 40 that are connected to the insulating frame 20. Optionally, the shapes of the third connecting portion 42 and the fourth connecting portion 43 include, but are not limited to, hook-shaped, fork-shaped, straight, etc.

[0072] Specifically, the third connecting part 42 is located at one end of the main body 41, and one end of the third connecting part 42 is connected to the main body 41; the fourth connecting part 43 is located at the other end of the main body 41, and one end of the fourth connecting part 43 is connected to the main body 41, such as... Figure 5 As shown.

[0073] According to some embodiments of this application, the other end of the third connecting portion 42 is configured to engage with the first opening 221, and the other end of the fourth connecting portion 43 is configured to engage with the second opening 231, so that the fastener 40 is connected to the insulating frame 20.

[0074] Optionally, one end of the third connecting part 42 is connected to the main body 41, and the other end of the third connecting part 42 is shaped like a hook; one end of the fourth connecting part 43 is connected to the main body 41, and the other end of the fourth connecting part 43 is shaped like a hook; the hook shape design typically includes a wider base and a gradually narrowing tip, which helps the hook lock in place after being inserted into the opening, see details. Figure 5 As shown.

[0075] Specifically, the other end of the third connecting part 42 is engaged with the first opening 221, and the other end of the fourth connecting part 43 is engaged with the second opening 231, so that the fixing member 40 fixes the lead wire of the winding coil 30.

[0076] In this embodiment, the other end of the third connecting part 42 is configured to snap into the first opening 221, and the other end of the fourth connecting part 43 is configured to snap into the second opening 231. The snap-fit ​​design allows for a quick and easy assembly process without the need for additional tools or complicated steps, thus improving production efficiency.

[0077] According to some embodiments of this application, the length of the first connecting portion 22 is less than the length of the second connecting portion 23.

[0078] The length of the first connecting part 22 refers to the straight-line distance or outline length from the connection point or end of the winding part 21 and the first connecting part 22 to the end of the first connecting part 22.

[0079] The length of the second connecting part 23 refers to the straight-line distance or outline length from the connection point or end of the winding part 21 and the second connecting part 23 to the end of the second connecting part 23.

[0080] Optionally, the length of the first connecting portion 22 is not equal to the length of the second connecting portion 23, and the length of the first connecting portion 22 is less than the length of the second connecting portion 23. In other embodiments, the length of the first connecting portion 22 is equal to the length of the second connecting portion 23.

[0081] According to some embodiments of this application, the length of the third connecting portion 42 is greater than the length of the fourth connecting portion 43.

[0082] The length of the third connecting part 42 refers to the straight-line distance or outline length from the connection point or end of the main body 41 and the third connecting part 42 to the end of the third connecting part 42.

[0083] The length of the fourth connecting part 43 refers to the straight-line distance or outline length from the connection point or end of the main body 41 and the fourth connecting part 43 to the end of the fourth connecting part 43.

[0084] Optionally, the length of the third connecting portion 42 is not equal to the length of the fourth connecting portion 43, and the length of the third connecting portion 42 is greater than the length of the fourth connecting portion 43. In other embodiments, the length of the third connecting portion 42 is equal to the length of the fourth connecting portion 43.

[0085] According to some embodiments of this application, the third connecting part 42 is engaged with the first opening 221 of the first connecting part 22, and the fourth connecting part 43 is engaged with the second opening 231 of the second connecting part 23, so that the main body 41 and the winding part 21 are arranged in parallel.

[0086] Optionally, the length difference between the first connecting part 22 and the second connecting part 23 is equal to the length difference between the third connecting part 42 and the fourth connecting part 43; the other end of the third connecting part 42 is engaged with the first opening 221, and the other end of the fourth connecting part 43 is engaged with the second opening 231; at this time, the main body 41 is parallel to the winding part 21.

[0087] In this embodiment, the parallel arrangement of the main body 41 and the winding part 21 helps to maintain the symmetry and uniformity of the stator 1 of the motor, which is crucial for the balanced operation of the motor and the reduction of vibration.

[0088] This application also provides an electric motor, including the stator 1 of the above embodiments. The electric motor includes, but is not limited to, a stepper motor, a servo motor, an asynchronous motor, etc.

[0089] In summary, the stator 1 of the motor provided in this application includes multiple stator cores 10, multiple insulating frames 20, multiple winding coils 30, and multiple fixing members 40. The multiple insulating frames 20 are correspondingly arranged with the multiple stator cores 10 and are sleeved on the corresponding stator cores 10. The multiple winding coils 30 are correspondingly arranged with the multiple insulating frames 20 and are wound on the corresponding insulating frames 20. The multiple fixing members 40 are correspondingly arranged with the multiple insulating frames 20 and are used to connect to the insulating frames 20 to fix the leads of the winding coils 30. By correspondingly arranging the fixing members 40 with the insulating frames 20, this application allows direct fixing of the leads of the winding coils 30 on the insulating frames 20, simplifying the wire handling and binding process, reducing manual operation, improving the efficiency of wire handling and binding, and thus improving production efficiency.

[0090] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A stator for an electric motor, characterized in that, include: Multiple stator cores are arranged around the axis of the stator; Multiple insulating frames are provided corresponding to multiple stator cores, and the insulating frames are sleeved on the corresponding stator cores; Multiple winding coils are provided, and the multiple winding coils are correspondingly arranged with multiple insulating frames, and at least one winding coil is wound on the corresponding insulating frame; Multiple fasteners are provided, and the multiple fasteners are correspondingly provided with multiple insulating frames. The fasteners are used to connect the insulating frames to fix the leads of the winding coil.

2. The stator according to claim 1, characterized in that, The insulating frame includes a winding portion, a first connecting portion, and a second connecting portion. The two ends of the winding portion are respectively connected to the first connecting portion and the second connecting portion, and the winding coil is wound on the corresponding winding portion.

3. The stator according to claim 2, characterized in that, The fixing member is connected to the first connecting part and the second connecting part respectively, so as to fix the lead wire of the winding coil wound on the winding part.

4. The stator according to claim 3, characterized in that, The first connecting part is provided with a first opening, and the second connecting part is provided with a second opening. The first opening is located at the end of the first connecting part away from the winding part, and the second opening is located at the end of the second connecting part away from the winding part. The fastener is connected to the first opening and the second opening respectively.

5. The stator according to claim 4, characterized in that, The fastener includes a main body, a third connecting part, and a fourth connecting part. One end of the third connecting part is connected to one end of the main body, and one end of the fourth connecting part is connected to the other end of the main body.

6. The stator according to claim 5, characterized in that, The other end of the third connecting portion is configured to engage with the first opening, and the other end of the fourth connecting portion is configured to engage with the second opening, so that the fastener is connected to the insulating frame.

7. The stator according to claim 6, characterized in that, The length of the first connecting part is less than the length of the second connecting part.

8. The stator according to claim 7, characterized in that, The length of the third connecting part is greater than the length of the fourth connecting part.

9. The stator according to claim 8, characterized in that, The third connecting part engages with the first opening of the first connecting part, and the fourth connecting part engages with the second opening of the second connecting part, so that the main body and the winding part are arranged parallel to each other.

10. An electric motor, characterized in that, Includes the stator as described in any one of claims 1-9.

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