Transformer winding insulation structure convenient to assemble

Abstract

The utility model discloses a transformer winding insulation structure convenient to assemble. The transformer winding insulation structure comprises a first side cylinder and a second side cylinder. The beneficial effects are that the first side cylinder and the second side cylinder are adopted, the first side cylinder and the second side cylinder are fixedly installed on the outer side of the iron core in an assembling mode, when winding is carried out, the first side cylinder and the second side cylinder can be placed on the outer side of the iron core, the insertion block is aligned with the insertion groove, then the first side cylinder and the second side cylinder are combined, the insertion block is inserted into the insertion groove, and winding is carried out. The clamping head is extruded by the inserting groove to deform towards the elastic groove and enter the inserting groove, after the clamping head enters the clamping groove, the clamping head rebounds to clamp the clamping groove, assembling can be completed, at the moment, the first extrusion pad and the second extrusion pad are extruded by the edges and corners of the iron core to generate elastic deformation, installation of the first side barrel and the second side barrel is stabilized, and a winding can be completed. And the first side cylinder, the second side cylinder, the first extrusion pad and the second extrusion pad all adopt insulation structures, so that the insulation performance is good, the assembly is convenient and rapid, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of transformers, and more specifically, to a transformer winding insulation structure that is easy to assemble. Background Technology

[0002] The windings are the heart of a transformer, the core of its power transmission and transformation. Reliable winding insulation is fundamental to the long-term safe operation of a transformer. For high-voltage transformers, winding insulation becomes particularly important. It not only directly affects the transformer's insulation performance, but also, due to its large proportion, significantly impacts the transformer's technical performance and economic indicators.

[0003] After searching, it was found that application number CN202120869172.8, entitled "An Insulation Structure for Cylindrical Transformer Windings," addresses the problem that most current insulation methods simply involve placing a support block and insulating paper within the coil, resulting in less than ideal insulation performance. This application proposes a method of assembling each component into an insulating bushing, and includes a winding groove for the coil, enhancing wire stability and insulation. However, since most transformer cores are currently rectangular ring structures, the overall cylindrical structure of this application is difficult to install directly on the outside of the ring-shaped core, limiting its applicability to cylindrical or rectangular cores. Furthermore, the enameled wire is typically wound continuously, and the edge of the separator plate can affect the continuous winding of adjacent turns of enameled wire, leading to winding instability and impacting ease of use. Further improvements are possible.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a transformer winding insulation structure that is easy to assemble and convenient to use, thereby solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the aforementioned advantages of easy assembly and convenient use, the specific technical solution adopted by this utility model is as follows:

[0009] An easily assembled transformer winding insulation structure includes a first side tube and a second side tube. A first compression pad is adhered to the inner wall of the first side tube, and plugs are fixedly connected to both ends of the first side tube. A second compression pad is adhered to the inner wall of the second side tube, and slots are provided at both ends of the second side tube corresponding to the plug positions. A locking head is provided at the other end of the plug, and a spring groove is provided on one side of the locking head at the other end of the plug. A locking groove is provided at the other end of the slot corresponding to the locking head position. A first spiral groove and a second spiral groove are respectively provided on the outer surfaces of the first side tube and the second side tube.

[0010] Furthermore, the first spiral groove and the second spiral groove are continuous spiral structures, and the distance between the first spiral grooves is no greater than 1 mm.

[0011] Furthermore, multiple sets of the inserts and slots are arranged accordingly, and the inserts are integrally connected to the first side cylinder.

[0012] Furthermore, the inner diameters of the first and second extrusion pads are smaller than the diagonal spacing of the transformer core cross-section, while the inner diameters of the first and second side cylinders are larger than the diagonal spacing of the transformer core cross-section.

[0013] Furthermore, both the first and second side cylinders adopt an insulating structure, and both the first and second side cylinders adopt a semi-cylindrical structure.

[0014] Furthermore, both the first extrusion pad and the second extrusion pad have an insulating structure.

[0015] Furthermore, the size of the insert block is the same as the size of the slot.

[0016] Furthermore, the inserts and slots are evenly spaced.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a transformer winding insulation structure that is easy to assemble, and has the following beneficial effects:

[0019] (1) This utility model adopts a first side tube and a second side tube. The first side tube and the second side tube are fixedly installed on the outside of the iron core by assembly. When winding, the first side tube and the second side tube can be placed on the outside of the iron core, the insert block is aligned with the slot, and then the first side tube and the second side tube are combined. The insert block is inserted into the slot, and the clamp head is deformed towards the spring groove by the slot and enters the slot. After the clamp head enters the slot, the clamp head rebounds and locks the slot to complete the assembly. At this time, the first compression pad and the second compression pad are elastically deformed by the iron core edge, which stabilizes the installation of the first side tube and the second side tube and completes the winding. The first side tube, the second side tube, the first compression pad and the second compression pad all adopt an insulating structure, which has good insulation performance, is convenient and quick to assemble, and improves the convenience of use.

[0020] (2) This utility model adopts a first spiral groove and a second spiral groove. After the first side tube and the second side tube are combined, the first spiral groove and the second spiral groove form a continuous spiral structure. The winding enameled wire can be continuously positioned and wound in the first spiral groove and the second spiral groove, which improves the uniformity of winding. There is a gap between the first spiral groove and the second spiral groove, which can effectively prevent the winding enameled wire from squeezing and contacting each other, further improving the insulation performance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0022] Figure 1 This is a schematic diagram of the internal structure of the transformer winding insulation structure that is easy to assemble, as proposed in this utility model.

[0023] Figure 2 This is a front view of the transformer winding insulation structure that is easy to assemble, as proposed in this utility model.

[0024] Figure 3 This is a top view of the transformer winding insulation structure that is easy to assemble according to this utility model;

[0025] Figure 4 This is a schematic diagram of the plug block for the transformer winding insulation structure that is easy to assemble, as proposed in this utility model.

[0026] In the picture:

[0027] 1. First side cylinder; 2. Second side cylinder; 3. First extrusion pad; 4. Second extrusion pad; 5. First spiral groove; 6. Second spiral groove; 7. Insert block; 8. Slot; 9. Spring groove; 10. Clip head; 11. Slot. Detailed Implementation

[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] According to an embodiment of the present invention, a transformer winding insulation structure that is easy to assemble is provided.

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, the easily assembled transformer winding insulation structure according to an embodiment of the present invention includes a first side tube 1 and a second side tube 2. A first compression pad 3 is adhered to the inner wall of the first side tube 1, and insert blocks 7 are fixedly connected to both ends of the first side tube 1. A second compression pad 4 is adhered to the inner wall of the second side tube 2, and slots 8 are provided at both ends of the second side tube 2 corresponding to the positions of the insert blocks 7. A locking head 10 is provided at the other end of the insert block 7, and a spring groove 9 is provided on one side of the locking head 10 at the other end of the insert block 7. The spring groove 9 facilitates the locking head 10 to deform inward under pressure, making it easy for the locking head 10 to enter the slot 8. A locking groove 11 is provided at the other end of the slot 8 corresponding to the position of the locking head 10. A first spiral groove 5 and a second spiral groove 6 are respectively provided on the outer surfaces of the first side tube 1 and the second side tube 2. The first side tube 1 and the second side tube 2 are fixedly installed on the outside of the iron core by assembly. When winding, the first side tube 1 and the second side tube 2 can be placed on the outside of the iron core, the insert blocks 7 are aligned with the slots 8, and then the first side tube 1 and the second side tube 2 are joined together. The second side tube 2 and the insert block 7 are inserted into the slot 8. The clamping head 10 is squeezed by the slot 8 and deforms towards the spring groove 9, entering the slot 8. After the clamping head 10 enters the groove 11, it springs back and locks the groove 11, thus completing the assembly. At this time, the first compression pad 3 and the second compression pad 4 are squeezed by the iron core edges and undergo elastic deformation, stabilizing the installation of the first side tube 1 and the second side tube 2, thus completing the winding. The first side tube 1, the second side tube 2, the first compression pad 3 and the second compression pad 4 all adopt an insulating structure, with good insulation performance, convenient and quick assembly, and improved ease of use. At the same time, after the first side tube 1 and the second side tube 2 are combined, the first spiral groove 5 and the second spiral groove 6 form a continuous spiral structure. The winding enameled wire can be continuously positioned and wound in the first spiral groove 5 and the second spiral groove 6, improving the uniformity of winding. There is a gap between the first spiral groove 5 and the second spiral groove 6, which can effectively prevent the winding enameled wire from squeezing and contacting each other, further improving the insulation performance.

[0031] In one embodiment, the first spiral groove 5 and the second spiral groove 6 are continuous spiral structures, and the distance between the first spiral groove 5 is no more than 1mm, so as to avoid the working efficiency being reduced due to excessive spacing of the winding enameled wire.

[0032] In one embodiment, multiple sets of insert blocks 7 and slots 8 are arranged accordingly, and the insert blocks 7 are integrally connected to the first side cylinder 1, making the connection more stable and facilitating mass production.

[0033] In one embodiment, the inner diameter of the first compression pad 3 and the second compression pad 4 is smaller than the diagonal spacing of the transformer core cross-section, and the inner diameter of the first side cylinder 1 and the second side cylinder 2 is larger than the diagonal spacing of the transformer core cross-section, so that the first compression pad 3 and the second compression pad 4 can squeeze the edges of the transformer core for fixation.

[0034] In one embodiment, both the first side tube 1 and the second side tube 2 adopt an insulating structure, and both the first side tube 1 and the second side tube 2 adopt a semi-cylindrical structure for easy docking. At the same time, the winding enameled wire can be wound into a cylindrical shape to avoid structural problems caused by bending the enameled wire at a large angle.

[0035] In one embodiment, both the first compression pad 3 and the second compression pad 4 are made of insulating structure to improve the insulation effect.

[0036] In one embodiment, the size of the insert 7 is the same as the size of the slot 8, which improves the stability of the snap-fit.

[0037] In one embodiment, the insert 7 and slot 8 are evenly spaced to improve the stability of the fixed connection.

[0038] Working principle:

[0039] During winding, the first side tube 1 and the second side tube 2 can be placed outside the iron core. The insert block 7 is aligned with the slot 8. Then, the first side tube 1 and the second side tube 2 are joined together, and the insert block 7 is inserted into the slot 8. The clamping head 10 is deformed towards the spring groove 9 by the pressure of the slot 8 and enters the slot 8. After the clamping head 10 enters the groove 11, it springs back and locks into the groove 11, thus completing the assembly. At this time, the first compression pad 3 and the second compression pad 4 are elastically deformed by the pressure of the iron core edges, stabilizing the installation of the first side tube 1 and the second side tube 2, thus completing the winding. Side tube 1, second side tube 2, first compression pad 3, and second compression pad 4 all adopt an insulating structure, which has good insulation performance, is convenient and quick to assemble, and improves the convenience of use. At the same time, after the first side tube 1 and second side tube 2 are combined, the first spiral groove 5 and the second spiral groove 6 form a continuous spiral structure, and the winding enameled wire can be continuously positioned and wound in the first spiral groove 5 and the second spiral groove 6, which improves the uniformity of winding. There is a gap between the first spiral groove 5 and the second spiral groove 6, which can effectively prevent the winding enameled wire from squeezing and contacting each other, further improving the insulation performance.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A transformer winding insulation structure that is easy to assemble, characterized in that, The utility model relates to a transformer iron core structure, including first side cylinder (1) and second side cylinder (2), first side cylinder (1) inner wall bond has first extrusion pad (3), and first side cylinder (1) both ends fixedly connected have inserted block (7), second side cylinder (2) inner wall bond has second extrusion pad (4), and second side cylinder (2) both ends correspond inserted block (7) position are set up and have inserted groove (8), inserted block (7) other end is set up and has the clamping head (10), and the clamping head (10) one side is set up and has the elastic groove (9) in inserted block (7) other end, inserted groove (8) inside other end correspond clamping head (10) position are set up and have the clamping groove (11), first side cylinder (1) and second side cylinder (2) outer surface are set up with first helical groove (5) and second helical groove (6) respectively.

2. The transformer winding insulation structure that facilitates assembly of claim 1, wherein, The first helical groove (5) and the second helical groove (6) are continuous helical structures, and the spacing between the first helical grooves (5) is not greater than 1mm.

3. The transformer winding insulation structure that facilitates assembly of claim 1, wherein, The inserted blocks (7) and the inserted grooves (8) are correspondingly arranged in multiple groups, and the inserted blocks (7) are integrally connected with the first side cylinder (1).

4. The transformer winding insulation structure that facilitates assembly of claim 1, wherein, The inner diameters of the first extrusion pad (3) and the second extrusion pad (4) are smaller than the diagonal line spacing of the cross section of the transformer iron core, and the inner diameters of the first side cylinder (1) and the second side cylinder (2) are greater than the diagonal line spacing of the cross section of the transformer iron core.

5. The transformer winding insulation structure that facilitates assembly of claim 1, wherein, The first side cylinder (1) and the second side cylinder (2) are both of insulating structure, and the first side cylinder (1) and the second side cylinder (2) are both of semicircular cylindrical structure.

6. The transformer winding insulation structure that facilitates assembly of claim 1, wherein, The first extrusion pad (3) and the second extrusion pad (4) are both of insulating structure.

7. The transformer winding insulation structure that facilitates assembly of claim 1, wherein, The size of the inserted block (7) is the same as the size of the inserted groove (8).

8. The transformer winding insulation structure that facilitates assembly of claim 1, wherein, The inserted blocks (7) and the inserted grooves (8) are distributed at equal intervals.

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