A coil frame, a motor stator, and a motor

Abstract

This utility model relates to a coil frame, a motor stator, and a motor. The coil frame includes an integrally formed winding frame and rectangular end caps disposed at both ends of the winding frame. One of the rectangular end caps is provided with an inlet winding post and an outlet winding post. A clearance groove is provided on the rectangular end cap near the inlet winding post. The advantages of this utility model are dimensional stability and improved production quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a coil frame, a motor stator, and a motor. Background Technology

[0002] Motor stator windings can be distributed or concentrated. Concentrated windings have one coil embedded in each tooth, with a winding pitch of 1. Traditional coil assembly methods include embedded and wound types. The most advantageous method is to first install the bobbin on the core and then wind the coils, resulting in the shortest stator coil ends and a compact structure. Traditionally, the bobbin structure has used a split-half design, where the bobbin is plugged into the core. However, the dimensions of the split-half bobbin are affected by the core, leading to uneven winding and inconsistent coil sizes. Utility Model Content

[0003] The purpose of this invention is to provide a coil frame, motor stator, and motor with stable dimensions that can improve production quality and efficiency.

[0004] A coil bobbin includes an integrally formed winding bobbin and rectangular end caps disposed at both ends of the winding bobbin. One of the rectangular end caps is provided with an inlet winding post and an outlet winding post. An anti-cavity groove is provided on the rectangular end cap near the inlet winding post.

[0005] In the above scheme, the integral molding of the coil frame can ensure the stability of the coil frame size, ensure the neatness of subsequent winding and the consistency of coil size. The setting of the inlet and outlet winding posts makes it more convenient to fix the coil inlet and outlet, reduce manual adjustment time, facilitate the operation of automated winding equipment, improve production efficiency, and avoid interference between the first winding and the rectangular end cap, prevent the insulation layer from being damaged due to friction during the winding process, and improve the winding quality.

[0006] Furthermore, one of the rectangular end caps is provided with a boss, and the inlet winding post and the outlet winding post are provided on the boss.

[0007] In the above scheme, the boss is used to support the inlet and outlet winding posts. Since the boss only locally thickens the inlet and outlet winding post areas, rather than thickening the end cap as a whole, it can reduce the amount of material used in processing the coil bobbin.

[0008] Furthermore, the winding frame is provided with wire grooves.

[0009] In the above solution, the wire groove provides a precise guiding path for the winding and can effectively avoid the crossing and stacking phenomena common in traditional free winding, ensuring the neatness of the winding and facilitating the operation of automated winding equipment.

[0010] Furthermore, the winding skeleton is rectangular.

[0011] An electric motor stator includes a coil frame as described in any of the above embodiments, and also includes an iron core, wherein the coil frame is injection molded on the iron core.

[0012] In the above scheme, the coil frame and the iron core form an integral structure, which is sturdy and avoids the loosening or displacement problems that may occur in the traditional split frame, ensuring the reliability of the motor in long-term operation. The size of the coil frame is fixed and does not change with the length of the iron core, ensuring the consistency of mass production and improving the manufacturing quality of the motor stator.

[0013] An electric motor, comprising a motor stator as described in the above embodiment.

[0014] This utility model discloses a coil frame, a motor stator, and a motor, which offer advantages such as dimensional stability and improved production quality and efficiency. The integral molding of the coil frame ensures dimensional stability, guaranteeing neat subsequent winding and consistent coil size. The inclusion of inlet and outlet winding posts facilitates easier coil inlet and outlet fixing, reducing manual adjustment time, and enabling automated winding equipment operation, thus improving production efficiency. The clearance groove prevents interference between the first winding turn and the rectangular end cap, preventing insulation damage caused by friction during winding and improving winding quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a coil frame structure according to one embodiment.

[0016] Figure 2 This is a schematic diagram of the wire groove and boss structure of a coil bobbin according to one embodiment.

[0017] The following are the symbols in the attached diagram: 1. Winding frame; 2. Rectangular end cap; 3. Wire groove; 4. Inlet winding post; 5. Outlet winding post; 6. Clearance groove; 7. Boss. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings, including a coil frame, a motor stator, and a motor.

[0019] like Figure 1 and Figure 2As shown in a preferred embodiment, a coil frame of this utility model includes an integrally formed winding frame 1 and rectangular end caps 2 disposed at both ends of the winding frame 1. One of the rectangular end caps 2 is provided with an inlet winding post 4 and an outlet winding post 5. An anti-cavity groove 6 is provided on the rectangular end cap 2 near the inlet winding post 4. The integral molding of the coil frame ensures the stability of the coil frame dimensions, guaranteeing neat subsequent winding and consistent coil size. The inlet winding post 4 and outlet winding post 5 make the inlet and outlet fixing of the coil more convenient, reducing manual adjustment time, facilitating the operation of automated winding equipment, and improving production efficiency. The anti-cavity groove 6 avoids interference between the first winding and the rectangular end cap 2, preventing insulation layer damage caused by friction during winding and improving winding quality. The coil frame in this embodiment eliminates the pressing and fastening processes of traditional frames, simplifying the production process and improving automated production efficiency.

[0020] like Figure 1 and Figure 2 As shown, in some embodiments, one of the rectangular end caps 2 is provided with a boss 7, and the inlet winding post 4 and the outlet winding post 5 are disposed on the boss 7. The boss 7 is provided to support the inlet winding post 4 and the outlet winding post 5. Since the boss 7 is only locally thickened in the area of ​​the inlet winding post 4 and the outlet winding post 5, rather than thickening the end cap as a whole, the amount of material used in processing the coil bobbin can be reduced.

[0021] like Figure 1 and Figure 2 As shown, in some embodiments, the winding frame 1 is provided with a wire groove 3. The wire groove 3 provides a precise guiding path for the winding and can effectively avoid the crossing and stacking phenomena common in traditional free winding, ensuring the neatness of the winding and facilitating the operation of automated winding equipment.

[0022] like Figure 1 and Figure 2 As shown, in some embodiments, the winding skeleton 1 is rectangular.

[0023] An electric motor stator includes a coil frame as described in any of the above embodiments, and an iron core, wherein the coil frame is injection molded onto the iron core. The coil frame and the iron core form an integral structure, which is robust and avoids the loosening or displacement problems that may occur with traditional split-frame structures, ensuring the reliability of long-term motor operation. The dimensions of the coil frame are fixed and do not change with the length of the iron core, ensuring consistency in mass production and improving the manufacturing quality of the electric motor stator.

[0024] An electric motor includes a motor stator as described in the above embodiments.

[0025] This utility model discloses a coil frame, a motor stator, and the working principle and process of the motor. The coil frame is injection molded and combined with the iron core to form a whole. During winding, the wire end is pre-fixed on the inlet winding post 4. The winding machine moves along the wire groove 3 according to the preset program so that the wire is wound on the wire groove 3. After completing the last turn, the wire is cut off and fixed on the outlet winding post 5.

[0026] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A coil frame, characterized in that, It includes an integrally formed winding frame and rectangular end caps disposed at both ends of the winding frame. One of the rectangular end caps is provided with an inlet winding post and an outlet winding post. An anti-cavity groove is provided on the rectangular end cap near the inlet winding post and the outlet winding post.

2. The coil frame according to claim 1, characterized in that, One of the rectangular end caps is provided with a boss, and the inlet winding post and the outlet winding post are provided on the boss.

3. The coil frame according to claim 1, characterized in that, The winding frame is provided with wire grooves.

4. The coil frame according to claim 1, characterized in that, The winding skeleton is rectangular.

5. A motor stator, characterized in that, The device includes a coil frame as described in any one of claims 1 to 4, and also includes an iron core, wherein the coil frame is injection molded on the iron core.

6. An electric motor, characterized in that, Includes the motor stator as described in claim 5.

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