Transformer winding structure

Abstract

The utility model discloses a transformer winding structure, and belongs to the technical field of transformers. Comprising a high-voltage coil assembly arranged at the top of a base, the high-voltage coil assembly comprises an insulating shell A, positioning blocks are arranged at the four corners of the bottom of the insulating shell A, and the positioning blocks are matched with positioning clamps on the outer side of the base; the low-voltage coil assembly is arranged on the inner side of the high-voltage coil assembly, the low-voltage coil assembly comprises an insulating shell B, and supporting blocks are arranged at the four corners of the bottom of the insulating shell B; the problems that hoisting is needed when an existing dry-type transformer winding structure is installed, a supporting block at the bottom and a lower pressing block at the top need to be manually placed before and after hoisting to position a high-voltage coil assembly and a low-voltage coil assembly, and then the high-voltage coil assembly and the low-voltage coil assembly are installed through bolts are effectively solved. Therefore, the effect of facilitating the installation of the high-voltage coil assembly and the low-voltage coil assembly is achieved.

Description

Technical Field

[0001] This application relates to the field of transformer technology, and more specifically, to a transformer winding structure. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. There are many types of transformers, including dry-type transformers. The windings of a dry-type transformer are an important component, and their structural design directly affects the transformer's performance, safety, and applicable scenarios.

[0003] The existing dry-type transformer winding structure requires hoisting during installation. Before and after hoisting, manual placement of the bottom support blocks and top pressure blocks is required to position the high-voltage coil assembly and the low-voltage coil assembly. Then, the high-voltage coil assembly and the low-voltage coil assembly are installed with bolts. The installation process is cumbersome.

[0004] In view of this, we propose a transformer winding structure. Utility Model Content

[0005] The purpose of this application is to provide a transformer winding structure that can effectively solve the problem that existing dry-type transformer winding structures require hoisting during installation. Before and after hoisting, manual placement of the bottom support blocks and the top pressure blocks is required to position the high-voltage coil assembly and the low-voltage coil assembly, and then bolts are used to install the high-voltage coil assembly and the low-voltage coil assembly, which is a cumbersome installation process.

[0006] This application provides a transformer winding structure, including:

[0007] A high-voltage coil assembly is disposed on the top of the base. The high-voltage coil assembly includes an insulating shell A. A positioning block is provided at each of the four corners of the bottom of the insulating shell A. The positioning block cooperates with the positioning clamp on the outside of the base.

[0008] A low-voltage coil assembly is disposed inside the high-voltage coil assembly. The low-voltage coil assembly includes an insulating shell B, and a support block is provided at each of the four corners of the bottom of the insulating shell B.

[0009] The pressure blocks are all fixed to the outside of the two channel steels by means of fixing components;

[0010] Two of the channel steels are used to fix the iron core, and four of the lower pressure blocks press against the tops of the insulating shell A and the insulating shell B under the drive of the fixing assembly.

[0011] As an optional solution to the technical solution of this application, the four support blocks are slidably disposed on the top of the four positioning blocks, and the bottom of the four pressing blocks are all fixedly disposed with a correction block.

[0012] As an optional solution to the technical solution of this application, a high-voltage coil assembly and the low-voltage coil assembly inside it constitute a group. There are three groups of high-voltage coil assemblies and low-voltage coil assemblies, and three groups of pressure blocks are provided accordingly. Each group of pressure blocks has four pressure blocks, which are distributed at the four corners of the top of the high-voltage coil assembly and the low-voltage coil assembly.

[0013] As an optional solution to the technical solution of this application, the fixing component includes two rotating handles, which are respectively rotatably disposed on the outer side of two channel steels. Three sets of worm gears are fixedly disposed at one end of each of the two rotating handles. A worm wheel is meshed on the outer side of each worm gear. A threaded rod is slidably disposed on the inner side of each worm wheel along the axial direction. A threaded sleeve is threadedly disposed on the outer side of each threaded rod. The bottom of each threaded rod is rotatably disposed with the top of the corresponding lower pressure block. Each threaded sleeve is fixedly disposed on the outer side of the corresponding channel steel.

[0014] As an optional solution to the technical solution of this application, a sprocket is fixedly provided at one end of each of the two worm gears on the side away from the two rotating handles, and a chain is meshed on the outer side of each of the two sprockets.

[0015] As an optional solution to the technical solution of this application, the tops of the worm gears on both sides are respectively rotatably mounted on the bottom of the corresponding support plates, and a terminal block is provided on the outside of the low-voltage coil assembly.

[0016] As an optional solution to the technical solution of this application, a plurality of heat dissipation vents A and a plurality of heat dissipation vents B are respectively provided on the inner side of the insulating shell A and the insulating shell B.

[0017] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0018] (1) This application uses a fixed component to support the high-voltage coil assembly and the low-voltage coil assembly through positioning blocks and support blocks. The fixed component drives the lower pressure block to fix them. Therefore, it effectively solves the problem that the existing dry-type transformer winding structure requires hoisting during installation. Before and after hoisting, manual placement of the bottom support block and the top lower pressure block is required to position the high-voltage coil assembly and the low-voltage coil assembly. Then, the high-voltage coil assembly and the low-voltage coil assembly are installed by bolts. The installation steps are cumbersome. This application achieves the effect of facilitating the installation of the high-voltage coil assembly and the low-voltage coil assembly.

[0019] (2) This application sets a correction block at the bottom of the pressure block, and sets four correction blocks at the gap between the high voltage coil assembly and the low voltage coil assembly, so that the high voltage coil assembly and the low voltage coil assembly are concentric, which facilitates the positioning and installation of the high voltage coil assembly and the low voltage coil assembly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the transformer winding structure disclosed in a preferred embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the bottom structure of the high-voltage coil assembly in a transformer winding structure disclosed in a preferred embodiment of this application;

[0022] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;

[0023] Figure 4 This is a schematic diagram of the fixed component in the transformer winding structure disclosed in a preferred embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the lower pressure block in a transformer winding structure disclosed in a preferred embodiment of this application;

[0025] The following are the labels in the diagram: 100, base; 1001, positioning clamp; 200, iron core; 300, channel steel; 1, high-voltage coil assembly; 11, insulating shell A; 12, positioning block; 13, heat dissipation port A; 2, low-voltage coil assembly; 21, insulating shell B; 22, support block; 23, heat dissipation port B; 24, terminal block; 3, lower pressure block; 31, correction block; 4, fixing assembly; 41, rotating handle; 42, worm gear; 43, worm wheel; 44, threaded rod; 45, threaded sleeve; 46, sprocket; 47, chain; 48, support plate. Detailed Implementation

[0026] The present application will be further described in detail below with reference to the accompanying drawings.

[0027] Reference Figure 1 , Figure 2 and Figure 3 This application discloses a transformer winding structure, including a high-voltage coil assembly 1, which is disposed on the top of a base 100. The high-voltage coil assembly 1 includes an insulating shell A11, and positioning blocks 12 are provided at the four corners of the bottom of the insulating shell A11. The positioning blocks 12 cooperate with the positioning clamps 1001 on the outside of the base 100. A low-voltage coil assembly 2 is disposed inside the high-voltage coil assembly 1. The low-voltage coil assembly 2 includes an insulating shell B21, and support blocks 22 are provided at the four corners of the bottom of the insulating shell B21. Four pressing blocks 3 are provided on the outside of two channel steels 300 through a fixing assembly 4. The two channel steels 300 are used to fix the iron core 200. The four pressing blocks 3 press down on the insulating shells A11 and B21 under the drive of the fixing assembly 4.

[0028] In existing dry-type transformers, the high-voltage coil assembly 1 and low-voltage coil assembly 2 require manual positioning by workers during installation, followed by fixing with bolts. Each high-voltage coil assembly 1 and low-voltage coil assembly 2 requires at least four bolts, making installation inconvenient. This device, however, addresses this by placing the insulating shell A11 on top of the base 100, allowing four positioning blocks 12 to engage with the top of the base 100. Then, the insulating shell B21 is placed inside the insulating shell A11, allowing the four positioning blocks 12 to support four support blocks 22. Finally, the fixing component 4 drives four pressing blocks 3 to press down on the insulating shells A11 and B21, thus fixing them in place. This achieves a more convenient installation of the high-voltage coil assembly 1 and low-voltage coil assembly 2.

[0029] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 Four support blocks 22 are slidably set on the top of four positioning blocks 12, and correction blocks 31 are fixedly set on the bottom of four pressing blocks 3.

[0030] Four positioning clips 1001 are matched with four positioning blocks 12 to support the four positioning blocks 12 and the high-voltage coil assembly 1 connected thereto. The bottom of the four support blocks 22 is provided with ball bearings, which can slide on the top of the positioning blocks 12. Four pressing blocks 3 are set at the four corners of the high-voltage coil assembly 1 and the low-voltage coil assembly 2, and the four correction blocks 31 are all set as arc-shaped blocks. When the fixing component 4 drives the four pressing blocks 3 to press down, the four correction blocks 31 are all set at the gap between the high-voltage coil assembly 1 and the low-voltage coil assembly 2, so that the high-voltage coil assembly 1 and the low-voltage coil assembly 2 are concentric. The four pressing blocks 3 fix the high-voltage coil assembly 1 and the low-voltage coil assembly 2.

[0031] Reference Figure 1 and Figure 4A high-voltage coil assembly 1 and its inner low-voltage coil assembly 2 constitute a group. Three groups of high-voltage coil assemblies 1 and 2 are provided, and three corresponding groups of lower pressure blocks 3 are also provided. Each group has four lower pressure blocks 3, distributed at the four corners of the top of the high-voltage coil assembly 1 and the low-voltage coil assembly 2. The fixing assembly 4 includes two rotating handles 41, which are rotatably mounted on the outer sides of two channel steels 300. Three sets of worm gears 42 are fixedly mounted at one end of each of the two rotating handles 41. Each worm 42 has a worm wheel 43 meshing on its outer side, and a threaded rod 44 sliding axially on the inner side of each worm wheel 43. Each threaded rod 44 has a threaded sleeve 45 threaded on its outer side. The bottom of each threaded rod 44 is rotatably mounted to the top of the corresponding lower pressure block 3. Each threaded sleeve 45 is fixedly mounted on the outer side of the corresponding channel steel 300. A sprocket 46 is fixedly mounted on one end of each of the two worms 42 on the side away from the two rotating handles 41. A chain 47 is meshed on the outer side of each of the two sprockets 46.

[0032] When the three sets of lower pressure blocks 3 are driven to press down, by rotating a rotating handle 41, the three sets of worm gears 42 on one side are driven to rotate. The worm gear 42 away from the corresponding rotating handle 41 drives the corresponding sprocket 46 to rotate, thereby driving the chain 47 and another sprocket 46 to rotate, thereby driving the three sets of worm gears 42 on the other side to rotate. At the same time, the three sets of worm gears 42 on both sides drive the corresponding multiple worm wheels 43 to rotate, so that the multiple worm wheels 43 drive the multiple threaded rods 44 to rotate, so that the multiple threaded rods 44 cooperate with the corresponding threaded sleeves 45, causing the threaded rods 44 to descend, driving the corresponding lower pressure block 3 to descend, and fixing the high voltage coil assembly 1 and the low voltage coil assembly 2.

[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The tops of the worm gears 43 on both sides are rotatably mounted on the bottom of the corresponding support plates 48. A terminal block 24 is provided on the outside of the low-voltage coil assembly 2. Several heat dissipation holes A13 and several heat dissipation holes B23 are respectively opened on the inner sides of the insulating shell A11 and the insulating shell B21.

[0034] Two support plates 48 are used to support multiple worm gears 43. Three terminal plates 24 are fixed to the outside of two channel steels 300 by bolts. Several heat dissipation ports A13 and several heat dissipation ports B23 respectively dissipate heat to the inside of the insulating shell A11 and the insulating shell B21.

[0035] In summary, during installation, the transformer winding structure disclosed in this application involves placing the insulating shell A11 on top of the base 100, matching the four positioning clips 1001 with the four positioning blocks 12 to support the four positioning blocks 12 and their connected high-voltage coil assembly 1. Then, the insulating shell B21 is placed inside the insulating shell A11, allowing the four positioning blocks 12 to support the four support blocks 22. Rotating a handle 41 drives three sets of worm gears 42 on one side to rotate. The worm gear 42 furthest from the corresponding handle 41 drives the corresponding sprocket 46 to rotate, thereby driving the chain 47 and another sprocket 46 to rotate, thus driving the other side... The three sets of worm gears 42 rotate, and at the same time, the three sets of worm gears 42 on both sides drive the corresponding multiple worm wheels 43 to rotate, so that the multiple worm wheels 43 drive the multiple threaded rods 44 to rotate, so that the multiple threaded rods 44 cooperate with the corresponding threaded sleeves 45, so that the threaded rods 44 descend, driving the corresponding lower pressure blocks 3 to descend. The four lower pressure blocks 3 press down on the insulating shells A11 and B21. The four correction blocks 31 are all set at the gap between the high voltage coil assembly 1 and the low voltage coil assembly 2, so that the high voltage coil assembly 1 and the low voltage coil assembly 2 are concentric, and the insulating shells A11 and B21 are fixed, so as to facilitate the installation of the high voltage coil assembly 1 and the low voltage coil assembly 2.

Claims

1. A transformer winding structure, characterized in that, Include: A high-voltage coil assembly (1) is disposed on the top of the base (100). The high-voltage coil assembly (1) includes an insulating shell A (11). A positioning block (12) is provided at each of the four corners of the bottom of the insulating shell A (11). The positioning block (12) cooperates with the positioning clamp (1001) on the outside of the base (100). The low-voltage coil assembly (2) is located inside the high-voltage coil assembly (1). The low-voltage coil assembly (2) includes an insulating shell B (21), and a support block (22) is provided at each of the four corners of the bottom of the insulating shell B (21). The pressure blocks (3) are all set on the outside of the two channel steels (300) by fixing components (4); Two of the channel steels (300) are used to fix the iron core (200), and four of the lower pressure blocks (3) press against the top of the insulating shell A (11) and the insulating shell B (21) under the drive of the fixing assembly (4).

2. The transformer winding structure according to claim 1, characterized in that: The four support blocks (22) are slidably disposed on the top of the four positioning blocks (12), and the bottom of the four pressing blocks (3) are all fixedly disposed with correction blocks (31).

3. The transformer winding structure according to claim 2, characterized in that: A high-voltage coil assembly (1) and its inner low-voltage coil assembly (2) constitute a group. There are three groups of high-voltage coil assemblies (1) and low-voltage coil assemblies (2), and three groups of pressure blocks (3) are provided accordingly. There are four pressure blocks (3) in each group. The four pressure blocks (3) are distributed at the four corners of the top of the high-voltage coil assembly (1) and the low-voltage coil assembly (2).

4. The transformer winding structure according to claim 3, characterized in that: The fixing component (4) includes two rotating handles (41), which are rotatably disposed on the outer side of two channel steels (300). Three sets of worm gears (42) are fixedly disposed at one end of each of the two rotating handles (41). A worm wheel (43) is meshed on the outer side of each worm gear (42). A threaded rod (44) is slidably disposed on the inner side of each worm wheel (43) along the axial direction. A threaded sleeve (45) is threadedly disposed on the outer side of each threaded rod (44). The bottom of each threaded rod (44) is rotatably disposed with the top of the corresponding lower pressure block (3). Each threaded sleeve (45) is fixedly disposed on the outer side of the corresponding channel steel (300).

5. The transformer winding structure according to claim 4, characterized in that: A sprocket (46) is fixedly provided at one end of each of the two worm gears (42) on the side away from the two rotating handles (41), and a chain (47) is engaged on the outer side of each of the two sprockets (46).

6. The transformer winding structure according to claim 4, characterized in that: The tops of the worm gears (43) on both sides are rotatably mounted on the bottom of the corresponding support plates (48), and a terminal block (24) is provided on the outside of the low-voltage coil assembly (2).

7. The transformer winding structure according to claim 1, characterized in that: The inner sides of the insulating shell A (11) and the insulating shell B (21) are respectively provided with a plurality of heat dissipation holes A (13) and a plurality of heat dissipation holes B (23).

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