Motor wire binding insulation framework

Abstract

The utility model relates to the technical field of insulation frameworks, in particular to a motor wire binding insulation framework which comprises a framework body of an annular structure, a plurality of winding frames are arranged on the framework body at intervals in the circumferential direction, and a winding cavity is formed between every two adjacent winding frames. A first groove and a second groove are formed in the end face of one side, in the axial direction of the framework body, of each winding frame, the first grooves and the second grooves are formed in the radial direction of the winding framework, and the first grooves are formed in the two ends of each second groove and communicated with each other. The first groove and the second groove are formed in one end of the winding frame, the first groove is used for containing the binding wire so that the binding wire can bind the winding wire conveniently, the second groove reduces material accumulation at the winding frame, stress concentration of the winding frame is reduced, it is guaranteed that the strength of the winding frame is stable and reliable, and meanwhile the second groove can also facilitate containing of the binding wire.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of insulation framework, especially to motor binding wire insulation framework. BACKGROUND

[0002] The motor mainly includes stator assembly and rotor assembly, wherein the stator assembly includes framework and coil wound on the framework, wherein each coil on the insulation framework cannot contact, therefore, the requirement of the framework is extremely important, and one end of the winding frame of the existing framework is prone to accumulation due to poor flowability of the material during injection molding, stress concentration is caused, accumulation is prone to cavity and other phenomena, the strength of the winding frame of the framework is greatly reduced, cracking of the winding frame occurs, the normal operation of the motor is affected, damage occurs in serious cases, and production cost is increased. SUMMARY

[0003] The utility model wants to solve the technical problem that: in order to solve the winding frame of the existing framework one end due to thickness is relatively big, in injection molding, the poor flowability of the material just easily leads to accumulation, and causes stress concentration, accumulation is prone to cavity and other phenomena, and causes the strength of the winding frame of the framework to greatly reduce, the cracking phenomenon of the winding frame occurs, affects the normal operation of the motor, and damage occurs in serious cases, and the problem of increasing production cost is solved, and the utility model provides a kind of motor binding wire insulation framework.

[0004] The utility model adopts the technical scheme that a kind of motor binding wire insulation framework, including the framework body of annular structure, the framework body is intervalled and is provided with a plurality of winding frames along circumferential direction, the winding cavity is formed between adjacent two winding frames, first recess and second recess are set on the end face of each winding frame along the axial side of framework body, the first recess and second recess are along the radial direction of winding framework, the two ends of the second recess are all provided with first recess and are interconnected, first recess is used to accommodate the binding wire of binding coil, and the second recess is used to reduce the material on the end face of winding frame along the axial side of framework body and prevent stress concentration.Compared with prior art, first recess and second recess are set on one end of winding frame in the present scheme, first recess is used to place binding wire, which facilitates binding wire to bind winding, second recess reduces the material accumulation at winding frame, reduces the stress concentration of winding frame, ensures the stable and reliable strength of winding frame itself, and second recess can also facilitate the placement of binding wire.

[0005] In order to prevent the coil from slipping, preferably some embodiments, each winding frame is provided with a first flange on the inner ring of the framework body, which extends outward along the radial direction or the axial direction of the framework body. The first flange can well limit the wound coil, ensuring the stable and reliable limitation of the coil on the framework body, while also ensuring the strength of the winding frame.

[0006] Preferably, one end of the skeleton body extends a second flange radially outward, and the second flange is located at the end face of one side of the bobbin.

[0007] Preferably, the second groove is located on the end face of one side of the bobbin, and the first grooves on the first flange and the second flange are located at two ends respectively.

[0008] In order to better reduce the stress concentration caused by the accumulation of the bobbin material, preferably, the depth of the first groove on the first flange is equal to the depth of the second groove, and the depth of the first groove on the second flange is less than the depth of the second groove.

[0009] In order to better reduce the stress concentration caused by the accumulation of the bobbin material, preferably, the width of the first groove is less than the width of the second groove.

[0010] In order to improve the strength of the skeleton body, preferably, the skeleton body is integrally formed with the plurality of bobbins.

[0011] Preferably, the first arc-shaped transition surface is arranged at the connection between the skeleton body and the plurality of bobbins.

[0012] Preferably, the second arc-shaped transition surface is arranged at the four corners of the first groove.

[0013] Preferably, the third arc-shaped transition surface is arranged at the four corners of the second groove.

[0014] The motor wire binding insulation skeleton has the advantages that: when the motor wire binding insulation skeleton is used, the first groove and the second groove are arranged at one end of the bobbin, the first groove is used for placing the wire binding, the wire binding is convenient for binding the wire, the second groove reduces the accumulation of the material at the bobbin, reduces the stress concentration of the bobbin, ensures the stable and reliable strength of the bobbin itself, and the second groove also facilitates the placement of the wire binding, avoids the problem that the one end of the bobbin of the existing skeleton is relatively thick, the material flowability is poor during injection molding, and the accumulation and stress concentration are caused, the accumulation is prone to cavitation and other phenomena, the strength of the bobbin of the skeleton is greatly reduced, the bobbin cracking phenomenon occurs, the normal operation of the motor is affected, and the motor is damaged in serious cases, and the production cost is increased. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model is further described below in combination with the drawings and examples.

[0016] Figure 1 is a three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 isFigure 1 the partial enlarged view of middle A;

[0018] Figure 3 is the front view of the utility model;

[0019] Figure 4 is Figure 3 the middle B-B section view;

[0020] Figure 5 is Figure 4 the partial enlarged view of middle C.

[0021] In the figure: 1, skeleton body, 2, reel, 3, winding cavity, 4, first recess, 5, second recess, 6, first flange, 7, second flange, 8, first arc transition surface, 9, second arc transition surface, 10, third arc transition surface. DETAILED DESCRIPTION

[0022] The utility model makes further detailed description below combining with the embodiment:

[0023] The utility model is not limited to the following specific embodiments, and the person skilled in the art can implement the utility model by using other various specific embodiments according to the content disclosed in the utility model, or falls within the protection scope of the utility model for simple change or change by using the design structure and idea of the utility model.It needs to be explained that the embodiment in the utility model and the features in the embodiment can be combined mutually in the case of not conflicting.

[0024] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.Thus, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features.In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0025] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication。For ordinary skilled person in the art, the above-mentioned term can be understood by the specific meaning in the utility model through specific circumstances.

[0026] As Figures 1-5 The utility model provides an electric motor binding wire insulation framework, including annular structure's framework body 1, a plurality of winding frames 2 are arranged at interval on the framework body 1 along the circumferential direction, and the winding cavity 3 is formed between the adjacent two winding frames 2, the first recess 4 and the second recess 5 are set up on each winding frame 2, the first recess 4 and the second recess 5 are located at the end face of winding frame 2 along the axial direction of framework body 1, the first recess 4 and the second recess 5 are arranged along the radial direction of winding framework, and the two ends of the second recess 5 are provided with the first recess 4 and are interconnected, the first recess 4 is used to accommodate the binding wire that binds the coil, and the second recess 5 is used to reduce the material on the end face of winding frame 2 along the axial direction of framework body 1 and prevent stress concentration.

[0027] The first flange 6 is arranged at the inner ring of the framework body 1, and the first flange 6 extends outward along the radial direction or the axial direction of the framework body 1, and the second flange 7 extends outward along the radial direction of the framework body 1 at one end thereof, and the second flange 7 is located at the end face on one side of the winding frame 2.

[0028] The second recess 5 is located on the end face on one side of the winding frame 2, the two end first recesses 4 are located on the first flange 6 and the second flange 7 respectively, the width of the first recess 4 is less than the width of the second recess 5, the depth of the first recess 4 on the first flange 6 is equal to the depth of the second recess 5, and the depth of the first recess 4 on the second flange 7 is less than the depth of the second recess 5.

[0029] The framework body 1 and the plurality of winding frames 2 are integrally formed, a first arc-shaped transition surface 8 is arranged at the connecting portion between the framework body 1 and the plurality of winding frames 2, a second arc-shaped transition surface 9 is arranged at the four corners of the first recess 4, and a third arc-shaped transition surface 10 is arranged at the four corners of the second recess 5.

[0030] The above-mentioned electric motor binding wire insulation framework is used, the winding is wound on each winding frame 2, after winding is wound, the winding is bound through the binding wire, the binding wire is clamped in the first recess 4 and the second recess 5, and meanwhile the second recess 5 greatly reduces the material accumulation on one side of the winding frame 2, can greatly reduce stress concentration under the premise of guaranteeing original self strength, and guarantees that the framework body 1 is stable and reliable in use.

[0031] The above ideal embodiment of the utility model is an inspiration, and through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A motor wire-binding insulating skeleton, comprising a skeleton body (1) of an annular structure, a plurality of winding frames (2) arranged on the skeleton body (1) at intervals along the circumferential direction, a winding cavity (3) being formed between two adjacent winding frames (2), and characterized in that: Each of the winding frames (2) is provided with a first groove (4) and a second groove (5) on the end face of the axial side of the framework body (1), the first groove (4) and the second groove (5) are arranged along the radial direction of the winding framework, the two ends of the second groove (5) are provided with the first groove (4) and are communicated with each other, the first groove (4) is used for accommodating the binding wire of the coil, and the second groove (5) is used for reducing the material on the end face of the axial side of the winding frame (2) and preventing stress concentration.

2. The motor bundle wire insulation former according to claim 1, characterized in that: Each of the winding frames (2) is provided with a first flange (6) at the inner ring of the framework body (1), and the first flange (6) extends outward along the radial direction or the axial direction of the framework body (1).

3. The motor bundle wire insulation former according to claim 2, characterized in that: The second flange (7) extends outward along the radial direction of the framework body (1) at one end of the framework body (1), and the second flange (7) is located at the end face of one side of the winding frame (2).

4. The motor bundle wire insulation former according to claim 3, characterized in that: The second groove (5) is located on the end face of one side of the winding frame (2), and the first grooves (4) at the two ends are located on the first flange (6) and the second flange (7) respectively.

5. The motor bundle insulation former of claim 4, wherein: The depth of the first groove (4) on the first flange (6) is equal to the depth of the second groove (5), and the depth of the first groove (4) on the second flange (7) is less than the depth of the second groove (5).

6. The motor cord insulation former according to any one of claims 1-5, characterized in that: The width of the first groove (4) is less than the width of the second groove (5).

7. The motor cord insulation former of claim 1, wherein: The framework body (1) and the plurality of winding frames (2) are integrally formed.

8. The motor cord insulation former of claim 1, wherein: The first arc-shaped transition surface (8) is arranged at the connection between the framework body (1) and the plurality of winding frames (2).

9. The motor cord insulation former of claim 1, wherein: The second arc-shaped transition surface (9) is arranged at the four corners of the first groove (4).

10. The motor cord insulation former of claim 1, wherein: The third arc-shaped transition surface (10) is arranged at the four corners of the second groove (5).

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