Coil winding mold for transformers

Abstract

The utility model discloses a coil winding mould of transformer relates to winding mould technical field. Include: winding mechanism, winding mechanism is opposite setting, connecting mechanism, connecting mechanism is symmetrically connected in the end of winding mechanism, support mechanism, support mechanism is installed in the inside of winding mechanism, and support mechanism is used for the shaping support of winding mechanism. The mould, through the oval curvature design of connecting portion, with the natural bending tendency of wire package is highly matched, cooperates the flanging structure of connecting portion boundary line, can reduce the clearance of wire package and mould surface in the process of winding, this makes the insulation material filling more uniform, has enhanced the electrical reliability of coil significantly, and through the support of support mechanism to winding mechanism and connecting mechanism constitutes three -dimensional support system, and this structure can form all -round stress balance from horizontal, vertical and end, effectively resists the pressure when winding, avoids the deformation problem of traditional mould because of lacking stable support.

Description

Technical Field

[0001] This utility model relates to the field of winding mold technology, specifically to transformer coil winding mold. Background Technology

[0002] In the field of transformer coil manufacturing, the structural rationality of the coil winding mold directly affects the coil's performance and production efficiency.

[0003] Traditional transformer coil winding often uses elongated oval molds. The curvature design of the elongated oval mold does not match the natural bending trend of the coil during the winding process, which makes it easy for gaps to form between the coil and the mold surface, resulting in loose coil layers and uneven distribution of insulation material.

[0004] Furthermore, traditional oblong dies lack effective shaping and support structures. During coil winding, the die is prone to deformation under pressure because a certain pressure needs to be applied to the conductor to ensure tight winding. This deformation directly leads to a further decrease in the fit between the coil and the die surface. The existing gap problem caused by the mismatch between the oblong curvature and the natural bending tendency of the coil is exacerbated, making the coil layers looser and the uneven distribution of insulation material more severe. At the same time, die deformation also causes uneven stress on the conductor during winding, increasing local stress, which not only easily damages the conductor insulation layer but also affects the electrical reliability and service life of the coil. Summary of the Invention

[0005] To achieve the above objectives, this utility model provides the following technical solution: a transformer coil winding mold, comprising: A winding mechanism, wherein the winding mechanisms are arranged opposite to each other; A connecting mechanism, which is symmetrically connected to the ends of the winding mechanism; A support mechanism is installed inside the winding mechanism and is used to provide shaping support for the winding mechanism.

[0006] Preferably, the winding mechanism includes a connecting portion, an arc-shaped portion, and a flat portion, wherein the arc-shaped portion is connected between two of the connecting portions, and the flat portion is connected between the other two connecting portions.

[0007] Preferably, the connecting portion has an elliptical curvature, and the edge of the connecting portion is provided with a flange.

[0008] Preferably, the connecting mechanism includes: A connecting plate, the shape of which corresponds to the shape of the winding mechanism; A connecting bolt, which is inserted into the connecting plate, and a washer is provided on the connecting bolt; The grooves are symmetrically formed on both sides of the connecting plate.

[0009] Preferably, the support mechanism includes: Lateral support components, wherein multiple lateral support components are arranged in parallel inside the winding mechanism; A vertical support plate is installed on a horizontal support assembly, and multiple vertical support plates are connected between the horizontal support assemblies. The vertical support plates are arranged vertically. The top plate is connected to the end of the vertical support plate, and the top plate is in contact with the connecting mechanism.

[0010] Preferably, the top plate has threaded holes.

[0011] Preferably, the lateral support component includes: A horizontal support plate, which is fixedly connected to a vertical support plate, and the two ends of the horizontal support plate are used to support the connecting part; A longitudinal support plate, one end of which is fixedly connected to a transverse support plate.

[0012] This utility model discloses a transformer coil winding mold, which has the following beneficial effects: The elliptical curvature design of the connecting section perfectly matches the natural bending trend of the coil. Combined with the flanged structure of the connecting section's edges, this reduces the gap between the coil and the mold surface during winding. This results in more uniform insulation material filling, a more compact overall coil structure, and improved heat dissipation efficiency through the gap between the two winding mechanisms. It also significantly enhances the coil's electrical reliability. Furthermore, the support mechanism forms a three-dimensional support system for the winding and connecting mechanisms. This structure provides all-around force balance from the horizontal, vertical, and end perspectives, effectively resisting the pressure during winding and avoiding the deformation problems caused by the lack of stable support in traditional molds. This ensures a stable fit between the connecting section and the coil in the winding mechanism, reduces the gap between the coil and the mold surface, and guarantees uniform insulation material filling, providing a fundamental guarantee for coil performance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the winding mechanism of this utility model; Figure 3 This is a front structural diagram of the support mechanism of this utility model; Figure 4 This is a top view of the support mechanism of this utility model. Figure 5 This is a three-dimensional structural diagram of the connecting mechanism of this utility model.

[0015] In the figure: 1. Winding mechanism; 11. Connecting part; 12. Curved part; 13. Flat part; 2. Connecting mechanism; 21. Connecting plate; 22. Connecting bolt; 23. Groove; 3. Supporting mechanism; 31. Horizontal support assembly; 311. Horizontal support plate; 312. Longitudinal support plate; 32. Vertical support plate; 33. Top plate; 331. Threaded hole. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] This utility model provides, for example Figure 1-5 The transformer coil winding mold shown includes: a winding mechanism 1, which is arranged opposite to the winding mechanism 1; a connecting mechanism 2, which is symmetrically connected to the ends of the winding mechanism 1; and a support mechanism 3, which is installed inside the winding mechanism 1 and is used to provide shaping support for the winding mechanism 1. The support mechanism 3 forms a three-dimensional support system for the winding mechanism 1 and the connecting mechanism 2. This structure can achieve all-round force balance from the horizontal, vertical, and end perspectives, effectively resisting the pressure during winding and avoiding the deformation problem caused by the lack of stable support in traditional molds. This ensures a stable fit between the connecting part 11 in the winding mechanism 1 and the coil, reduces the gap between the coil and the mold surface, ensures uniform filling of the insulation material, and provides a fundamental guarantee for coil performance.

[0019] The winding mechanism 1 includes a connecting part 11, an arc-shaped part 12, and a flat part 13. The arc-shaped part 12 connects two of the connecting parts 11, and there are a total of four connecting parts 11. The flat part 13 connects the other two connecting parts 11. The connecting parts 11 have an elliptical curvature, and the edges of the connecting parts 11 are provided with flanges. The elliptical curvature design of the connecting parts 11 is highly matched with the natural bending trend of the coil. Combined with the flange structure of the edges of the connecting parts 11, the gap between the coil and the mold surface during the winding process can be reduced. This makes the insulation material filling more uniform, the overall coil structure more compact, and the gap between the two winding mechanisms 1 improves heat dissipation efficiency and significantly enhances the electrical reliability of the coil. The arc-shaped part 12 and the flat part 13 serve as connecting components, splicing multiple connecting parts 11 into an approximately elliptical cross-section that conforms to the four-circle arc design, ensuring that the overall shape of the mold matches the natural bending trend of the coil, thereby improving the fit during winding and reducing gaps. This connection structure enables the winding mechanism 1 to form a stable frame, which, together with the internal support mechanism 3, resists the winding pressure, avoids mold deformation, and ensures the shape accuracy of the coil during the winding process.

[0020] The connecting mechanism 2 includes: a connecting plate 21, the shape of which corresponds to the shape of the winding mechanism 1; a connecting bolt 22, which is inserted into the connecting plate 21 and has a washer; and a groove 23, which is symmetrically opened on both sides of the connecting plate 21. The connecting plate 21 facilitates the connection and combination of the relative positions of the two winding mechanisms 1, so that there is a certain gap between the two winding mechanisms 1 and the relative position between the two winding mechanisms 1 is more stable. After the connecting bolt 22 passes through the connecting plate 21, it cooperates with the inner cavity of the threaded hole 331, so as to facilitate the fixed connection of the relative position between the connecting plate 21 and the top plate 33. The groove 23 corresponds to the gap between the two winding mechanisms 1.

[0021] Specifically, the support mechanism 3 includes: horizontal support components 31, multiple horizontal support components 31 arranged in parallel inside the winding mechanism 1; vertical support plates 32, mounted on the horizontal support components 31 and connected between the horizontal support components 31, the vertical support plates 32 being vertically arranged; and a top plate 33, connected to the end of the vertical support plates 32, the top plate 33 being in contact with the connecting mechanism 2. The top plate 33 has threaded holes 331. The transverse support assembly 31 includes: a transverse support plate 311, which is fixedly connected to a vertical support plate 32, and both ends of the transverse support plate 311 are used to support the connecting part 11; and a longitudinal support plate 312, one end of which is fixedly connected to the transverse support plate 311. In the support mechanism 3, the transverse support assemblies 31 are distributed parallel to each other inside the winding mechanism 1, the vertical support plates 32 are vertically connected between the transverse support assemblies 31, and the top plate 33 is fitted with the connecting mechanism 2. The three components form a three-dimensional support system that works together. This structure can form an all-round force balance from the transverse, vertical and end perspectives, effectively resisting the pressure during winding. The transverse support plate 311 is connected to the inner side of the connecting part 11, and the longitudinal support plate 312 is connected to the arc surface 12 and the flat surface 13 respectively. Thus, the transverse support assembly 31 can support the winding mechanism 1, and the top plate 33 can facilitate the support of the connecting mechanism 2.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A transformer coil winding mold, characterized in that, include: The winding mechanism (1) is arranged opposite to each other; A connecting mechanism (2) is symmetrically connected to the end of the winding mechanism (1); Support mechanism (3) is installed inside the winding mechanism (1) and is used to provide shaping support for the winding mechanism (1).

2. The transformer coil winding mold according to claim 1, characterized in that, The winding mechanism (1) includes a connecting part (11), an arc-shaped part (12), and a flat part (13). The arc-shaped part (12) is connected between two of the connecting parts (11), and the flat part (13) is connected between the other two connecting parts (11).

3. The transformer coil winding mold according to claim 2, characterized in that, The connecting part (11) has an elliptical curvature, and the edge of the connecting part (11) is provided with a flange.

4. The transformer coil winding mold according to claim 1, characterized in that, The connecting mechanism (2) includes: The connecting plate (21) has a shape corresponding to that of the winding mechanism (1); A connecting bolt (22) is inserted into the connecting plate (21), and a washer is provided on the connecting bolt (22); The groove (23) is symmetrically opened on both sides of the connecting plate (21).

5. The transformer coil winding mold according to claim 1, characterized in that, The support mechanism (3) includes: Lateral support components (31), a plurality of said lateral support components (31) are arranged in parallel inside the winding mechanism (1); A vertical support plate (32) is installed on a horizontal support assembly (31), and multiple vertical support plates (32) are connected between the horizontal support assemblies (31). The vertical support plates (32) are arranged vertically. Top plate (33), which is connected to the end of vertical support plate (32), and the top plate (33) is in contact with the connecting mechanism (2).

6. The transformer coil winding mold according to claim 5, characterized in that, The top plate (33) has a threaded hole (331).

7. The transformer coil winding mold according to claim 5, characterized in that, The lateral support component (31) includes: A horizontal support plate (311) is fixedly connected to a vertical support plate (32), and both ends of the horizontal support plate (311) are used to support the connecting part (11). A longitudinal support plate (312) is fixedly connected at one end to a transverse support plate (311).

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