A motor stator for a wind turbine

Abstract

This utility model discloses a motor stator for a fan, comprising a stator ring, with grooves evenly distributed on the outer wall of the stator ring. Stator teeth fit within the grooves, and coils are wound around the stator teeth. One end of each stator tooth facing the groove is configured with an inverted trapezoidal protrusion, which forms a notch with the connection end of the stator tooth. Pressure rings are connected to the upper and lower parts of the ring, respectively. Insertion teeth are evenly distributed on one side of the pressure ring facing the stator ring, and these insertion teeth are inserted into the notches. This motor stator for a fan has the advantages of simple structure, stable connection, and long service life.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor stator for a fan. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. It is widely used in daily life, and its core components are the stator and rotor. Among them, the stability of the stator is particularly important for the motor in a fan due to the high speed requirement.

[0003] Currently, the stator structure mainly consists of a ring, stator teeth connected to the ring, and coils wound around the stator teeth. To facilitate replacement and maintenance, the stator teeth are connected to the ring individually using adhesive and a wedge-shaped structure. The combination of these two methods can effectively prevent detachment. However, when using the wedge-shaped structure, the stator teeth are slid into the ring, which can cause the pre-coated adhesive to scratch, resulting in uneven bonding. After prolonged use, once the adhesive fails, the stator teeth become unstable due to vibration or detachment, relying solely on the wedge-shaped structure. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a motor stator for wind turbines that has a simple structure, stable connection and long service life.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A motor stator for a fan includes a stator ring, with grooves evenly distributed on the outer wall of the stator ring. Stator teeth fit into the grooves, and coils are wound on the stator teeth. One end of the stator teeth facing the groove is provided with an inverted trapezoidal protrusion, and the inverted trapezoidal protrusion forms a notch with the connection end of the stator tooth. Pressure rings are connected to the upper and lower parts of the ring, and insert teeth are evenly distributed on one side of the pressure ring facing the stator ring, and the insert teeth are inserted into the notch.

[0007] In use, adhesive is applied to the surface of the slide groove facing the stator teeth. The stator teeth are then pressed into the slide groove to achieve an adhesive connection. The pressure rings located at the upper and lower ends of the ring are connected to the stator ring respectively. The insert teeth are inserted into the notches to form a fit with the stator teeth, assisting the adhesive structure in achieving a stable connection between the stator teeth and the stator ring. This solution can ensure the realization of the current dual connection mechanism of adhesive plus wedge structure, and can also preserve the shape of the pre-applied adhesive during assembly, maximizing the adhesive effect.

[0008] Preferably, a positioning pin is provided on the end face of the slide groove facing the stator tooth, and a positioning hole is provided on the inverted trapezoidal protrusion accordingly.

[0009] In this way, after pre-applying adhesive, it is easy to quickly position the stator teeth when splicing them with the stator ring, while ensuring the flushness between each stator tooth.

[0010] Preferably, the thickness of the stator teeth is less than the thickness of the stator ring, and a pressure block is provided between the pressure ring and the insert teeth.

[0011] In this way, the pressure block can provide extrusion force to the upper and lower ends of the inverted trapezoidal protrusion. If the adhesive fails during long-term use, it can support the protrusion and prevent it from shaking.

[0012] Preferably, the stator tooth includes a winding portion and a limiting end face, wherein the width of the winding portion is greater than the width of the groove.

[0013] In this way, the winding part and the limiting end face can provide an installation base for the winding of the first transmission. The width of the winding part is greater than the width of the slide groove, which can play a horizontal positioning role when pressing the positioning teeth, and avoid the glue thickness affecting the installation error of the positioning ruler.

[0014] Preferably, the pressure ring is provided with a through hole, the upper and lower surfaces of the stator ring are provided with internal threaded holes, and the pressure ring and the stator ring are connected by bolts.

[0015] This facilitates the connection between the pressure ring and the stator ring, ensuring the stability of the connection between them.

[0016] In summary, the motor stator used in this fan has the advantages of simple structure, stable connection, and long service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a motor stator for a fan according to the present invention.

[0018] Figure 2 for Figure 1 A schematic diagram of the split structure.

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the middle stator teeth.

[0020] Figure 4 This is a schematic diagram of the stator ring structure. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0022] like Figure 1-4 As shown, a motor stator for a fan includes a stator ring 1, with grooves 11 evenly distributed on the outer wall of the stator ring, stator teeth 12 fitting inside the grooves, and coils 13 wound on the stator teeth; one end of the stator teeth facing the groove is provided with an inverted trapezoidal protrusion 14, and the inverted trapezoidal protrusion and the stator tooth connection end form a notch 15; pressure rings 16 are connected to the upper and lower parts of the ring respectively, and insert teeth 17 are evenly distributed on one side of the pressure ring facing the stator ring, and the insert teeth are inserted into the notch.

[0023] In use, adhesive is applied to the surface of the slide groove facing the stator teeth. The stator teeth are then pressed into the slide groove to achieve an adhesive connection. The pressure rings located at the upper and lower ends of the ring are connected to the stator ring respectively. The insert teeth are inserted into the notches to form a fit with the stator teeth, assisting the adhesive structure in achieving a stable connection between the stator teeth and the stator ring. This solution can ensure the realization of the current dual connection mechanism of adhesive plus wedge structure, and can also preserve the shape of the pre-applied adhesive during assembly, maximizing the adhesive effect.

[0024] Specifically, insulating paper is placed between the stator teeth and the coil to ensure the normal operation of the coil.

[0025] In practice, a positioning pin 18 is provided on the end face of the slide groove facing the stator tooth, and a positioning hole 19 is provided on the inverted trapezoidal protrusion. In this way, after pre-applying adhesive, when splicing the stator tooth and the stator ring, it is easy to achieve rapid positioning of the stator tooth, while ensuring the flushness between each stator tooth.

[0026] In practice, the thickness of the stator teeth is less than the thickness of the stator ring, and a pressure block 2 is provided between the pressure ring and the insert teeth. In this way, the pressure block can provide extrusion force to the upper and lower end faces of the inverted trapezoidal protrusion, and can support it if the adhesive fails during long-term use to prevent shaking.

[0027] In implementation, the stator tooth includes a winding portion 121 and a limiting end face 122, the width of which is greater than the width of the groove. Thus, the winding portion and the limiting end face provide an installation base for the initial winding, and the width of the winding portion being greater than the width of the groove allows for horizontal positioning during the pressing of the positioning tooth, preventing the adhesive thickness from affecting the installation error of the positioning ruler.

[0028] In practice, the pressure ring is provided with a through hole 21, and the upper and lower surfaces of the stator ring are provided with internal threaded holes 22. The pressure ring and the stator ring are connected by bolts 23. This facilitates the connection between the pressure ring and the stator ring and ensures the stability of the connection between them.

[0029] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A motor stator for a fan, characterized in that, The device includes a stator ring (1), on which a sliding groove (11) is uniformly arranged on the outer side wall, and a stator tooth (12) is fitted in the sliding groove (11), and a coil (13) is wound on the stator tooth (12); one end of the stator tooth (12) facing the sliding groove (11) is set as an inverted trapezoidal protrusion (14), and the inverted trapezoidal protrusion (14) and the stator tooth (12) are connected to form a notch (15); pressure rings (16) are connected to the upper and lower parts of the ring respectively, and insert teeth (17) are uniformly arranged on the side of the pressure ring (16) facing the stator ring (1), and the insert teeth (17) are inserted into the notch (15).

2. The motor stator for a fan according to claim 1, characterized in that, The slide groove (11) is provided with a positioning pin (18) on the end face of the stator tooth (12), and the inverted trapezoidal protrusion (14) is provided with a positioning hole (19).

3. A motor stator for a fan according to claim 2, characterized in that, The thickness of the stator tooth (12) is less than the thickness of the stator ring (1), and a pressure block (2) is provided between the pressure ring (16) and the insert tooth (17).

4. A motor stator for a fan according to claim 3, characterized in that, The stator tooth (12) includes a winding portion (121) and a limiting end face (122), the width of the winding portion (121) being greater than the width of the groove (11).

5. A motor stator for a fan according to claim 4, characterized in that, The pressure ring (16) is provided with a through hole (21), and the upper and lower surfaces of the stator ring (1) are provided with internal thread holes (22). The pressure ring (16) and the stator ring (1) are connected by bolts (23).

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