Oil-immersed transformer low-voltage winding formed by parallel wire lap winding

Abstract

The utility model relates to the technical field of transformers, in particular to a low-voltage winding of an oil-immersed transformer formed by connecting wires in parallel and lap-winding, which comprises an oil-immersed transformer body and bolts, a cover plate is arranged at the top of the oil-immersed transformer body, and a plurality of convenient-to-disassemble assemblies are mounted in the oil-immersed transformer body in a matched manner. The convenient-to-disassemble assembly is provided with a winding assembly in a matched mode. All the structures in the assembly are used in cooperation, in the device production process, cooperative installation and assembly between the winding body and the oil-immersed transformer body are achieved, the copper wire winding efficiency on the winding body and the device production efficiency are improved, and the problems that in the existing market, most low-voltage windings are integrated in the use process, and the production efficiency is poor are solved. The problems that a large amount of time needs to be consumed in the production process and the production efficiency of the device is reduced due to the fact that copper wires cannot be wound easily are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a low-voltage winding of an oil-immersed transformer with parallel wires and stacked windings. Background Art

[0002] Oil-immersed transformers are a common type of power transformers. They transmit and convert electrical energy by filling the transformer with insulating oil. Oil-immersed transformers usually have multiple burning groups. Burning groups refer to the winding parts that are divided into zones in the transformer windings. In order to facilitate winding fault diagnosis and repair, and improve the reliability and maintenance convenience of the transformer, the entire winding is divided into several independent areas. Among them, the low-voltage winding with multiple windings connected in parallel and stacked is a common winding structure. This winding structure is often used on the low-voltage side of the transformer to reduce the voltage and convert high-voltage electricity into low-voltage electricity for use by the user end.

[0003] Most of the low-voltage windings in the existing market are integrated during use, which is not conducive to the winding of copper wires, resulting in a large amount of time required in the production process, resulting in reduced production efficiency of the device. Therefore, a low-voltage winding with parallel conductors and stacked windings of an oil-immersed transformer is needed to improve the above problems. Utility Model Content

[0004] The utility model aims to provide a low-voltage winding of an oil-immersed transformer with parallel wires and stacked windings to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A low-voltage winding of an oil-immersed transformer with parallel conductors and stacked windings, comprising an oil-immersed transformer body and bolts, a cover plate is arranged on the top of the oil-immersed transformer body, a plurality of easily disassembled components are installed in the oil-immersed transformer body, and a winding component is installed in the easily disassembled component;

[0007] The easy-to-disassemble assembly includes a fixed block and a first clamping frame, the fixed block is symmetrically fixedly installed between the two symmetrical side walls in the inner cavity of the oil-immersed transformer body, a connecting block is fixedly installed on each of the two side walls of the fixed block, a fixing frame is fixedly installed on one side of the two connecting blocks close to each other, and a groove is respectively provided on one side of the two fixed blocks close to each other;

[0008] A connecting rod is slidably installed in the inner wall of the fixed frame, and the connecting rod passes through the inner wall of the fixed frame and extends to the outside. A spring is fixedly installed on the side of the fixed frame where the connecting rod is installed, and a moving block is fixedly installed on the side of the spring away from the fixed frame. A connecting rod is fixedly installed on the side of the moving block close to the spring, and a rotating block is rotatably installed on the side of the connecting rod away from the moving block. A limiting block is fixedly installed on the outer wall of the rotating block, and a storage frame is fixedly installed on the side of the connecting block close to the rotating block;

[0009] First clamping blocks are respectively installed on two symmetrical outer walls of the first clamping frame, and a clamping groove is formed on an outer wall of one side of the first clamping frame close to the moving block.

[0010] As a preferred solution of the utility model, the limit block is "L"-shaped, and the storage frame is slidably mounted with the limit block.

[0011] As a preferred solution of the utility model, the horizontal cross-section of the moving block is in a "T" shape, a first clamping block is slidably installed in the groove, and the moving block is clamped in the interior of the clamping groove.

[0012] As a preferred solution of the utility model, the winding assembly includes a winding body, second clip blocks are fixedly installed on the top and bottom of the winding body respectively, a second clip block is slidably installed in the inner cavity of the second clip frame, and another second clip block is slidably installed in the inner cavity of the first clip frame.

[0013] As a preferred solution of the utility model, a cover plate is fixedly installed on the top of the oil-immersed transformer body by means of bolts.

[0014] As a preferred solution of the utility model, heat sinks are evenly arranged on the outer wall of the oil-immersed transformer body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, a disassembly component is provided in the low-voltage winding of the oil-immersed transformer with parallel conductors and stacked windings, and the various structures in the component are used in coordination with each other. In the production process of the device, the coordinated installation and assembly between the winding body and the oil-immersed transformer body is realized, the copper wire winding efficiency on the winding body and the production efficiency of the device are improved, and the problem that most of the low-voltage windings in the existing market are integrated during use, which is not conducive to the winding of the copper wire, resulting in a large amount of time spent in the production process, resulting in reduced production efficiency of the device is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the assembly structure of the conveniently disassembled component of the utility model;

[0020] Figure 4 It is a schematic diagram of the spring assembly structure of the utility model.

[0021] In the figure: 1. oil-immersed transformer body; 2. cover plate; 3. easy-to-disassemble assembly; 301. fixed block; 302. connecting block; 303. fixed frame; 304. first clamping frame; 305. first clamping block; 306. groove; 307. second clamping frame; 308. spring; 309. moving block; 3010. rotating block; 3011. limiting block; 3012. storage frame; 3013. connecting rod; 3014. clamping groove; 4. winding assembly; 401. winding body; 402. second clamping block; 5. bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings, in which several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] Example: See Figure 1-4 A low-voltage winding of an oil-immersed transformer with parallel conductors and stacked windings is shown, comprising an oil-immersed transformer body 1 and a bolt 5, a cover plate 2 is provided on the top of the oil-immersed transformer body 1, a plurality of easily disassembled components 3 are installed inside the oil-immersed transformer body 1, and the easily disassembled components 3 are installed with a winding component 4;

[0027] The easy-to-disassemble component 3 includes a fixing block 301 and a first clamping frame 304. The fixing blocks 301 are symmetrically fixedly installed between the two symmetrical side walls in the inner cavity of the oil-immersed transformer body 1. A connecting block 302 is fixedly installed on each side of the two fixing blocks 301. A fixing frame 303 is fixedly installed on the side of the two connecting blocks 302 close to each other. A groove 306 is respectively opened on the side of the two fixing blocks 301 close to each other.

[0028] A connecting rod 3013 is slidably installed in the inner wall of the fixed frame 303, and the connecting rod 3013 penetrates the inner wall of the fixed frame 303 and extends to the outside. A spring 308 is fixedly installed on one side of the fixed frame 303 where the connecting rod 3013 is installed, and a moving block 309 is fixedly installed on the side of the spring 308 away from the fixed frame 303. A connecting rod 3013 is fixedly installed on the side of the moving block 309 close to the spring 308, and a rotating block 3010 is rotatably installed on the side of the connecting rod 3013 away from the moving block 309. A limiting block 3011 is fixedly installed on the outer wall of the rotating block 3010, and a storage frame 3012 is fixedly installed on one side of the connecting block 302 close to the rotating block 3010;

[0029] First clamping blocks 305 are respectively installed on two symmetrical outer walls of the first clamping frame 304 , and a clamping groove 3014 is formed on an outer wall of one side of the first clamping frame 304 close to the moving block 309 .

[0030] In this embodiment, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the limit block 3011 is in an "L" shape, the storage frame 3012 is slidably mounted with the limit block 3011, the horizontal section of the moving block 309 is in a "T" shape, the first clamping block 305 is slidably mounted in the groove 306, and the moving block 309 is clamped in the inside of the clamping groove 3014;

[0031] The moving block 309 and the clamping groove 3014 are clamped with each other to limit the movement of the first clamping frame 304 in the vertical direction.

[0032] In this embodiment, refer to Figure 1 and Figure 2 As shown, the winding assembly 4 includes a winding body 401, and second clamping blocks 402 are fixedly installed on the top and bottom of the winding body 401, respectively. A second clamping block 402 is slidably installed in the inner cavity of the second clamping frame 307, and another second clamping block 402 is slidably installed in the inner cavity of the first clamping frame 304. A cover plate 2 is fixedly installed on the top of the oil-immersed transformer body 1 by bolts 5, and heat sinks are evenly arranged on the outer wall of the oil-immersed transformer body 1;

[0033] The heat sink is used to increase the heat dissipation performance of the device, and the second clamping block 402 and the second clamping frame 307 are directly clamped to assist in limiting the position of the winding body 401 in the horizontal direction.

[0034] Working principle: During production, after the winding body 401 is wound with copper wire separately, the second clamping block 402 is aligned with the second clamping frame 307 for plugging after the winding is completed. After the plugging, the two first clamping blocks 305 on the first clamping frame 304 are aligned for plugging. As the first clamping block 305 moves, the first clamping frame 304 clamps the second clamping block 402 on the top of the winding body 401, thereby limiting the horizontal position of the first clamping block 305 and the first clamping frame 304.

[0035] After completion, pull the limit block 3011 to pull out the limit block 3011 stored in the inner cavity of the storage frame 3012. When the limit block 3011 moves out of the storage frame 3012, rotate the limit block 3011 to drive the rotating block 3010 to rotate, release the limit block 3011, and under the action of the spring 308, the moving block 309 will be clamped into the clamping groove 3014 to achieve the vertical limitation of the first clamping frame 304. In the production process of the device, the winding body 401 and the oil-immersed transformer body 1 are coordinated and installed, thereby improving the copper wire winding efficiency on the winding body 401 and the production efficiency of the device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage winding of an oil-immersed transformer with parallel conductors and stacked windings, comprising an oil-immersed transformer body (1) and bolts (5), characterized in that: A cover plate (2) is provided on the top of the oil-immersed transformer body (1); a plurality of easily disassembled components (3) are installed in cooperation with the inside of the oil-immersed transformer body (1); and a winding component (4) is installed in cooperation with the easily disassembled components (3); The easily disassembled component (3) comprises a fixed block (301) and a first clamping frame (304); the fixed block (301) is symmetrically fixedly installed between two symmetrical side walls in the inner cavity of the oil-immersed transformer body (1); a connecting block (302) is fixedly installed on each of the two side walls of the fixed blocks (301); a fixed frame (303) is fixedly installed on one side of the two connecting blocks (302) close to each other; and a groove (306) is provided on one side of the two fixed blocks (301) close to each other; A connecting rod (3013) is slidably mounted in the inner wall of the fixed frame (303), the connecting rod (3013) penetrates the inner wall of the fixed frame (303) and extends to the outside; a spring (308) is fixedly mounted on the side of the fixed frame (303) on which the connecting rod (3013) is mounted; a moving block (309) is fixedly mounted on the side of the spring (308) away from the fixed frame (303); a connecting rod (3013) is fixedly mounted on the side of the moving block (309) close to the spring (308); a rotating block (3010) is rotatably mounted on the side of the connecting rod (3013) away from the moving block (309); a limiting block (3011) is fixedly mounted on the outer wall of the rotating block (3010); and a storage frame (3012) is fixedly mounted on the side of the connecting block (302) close to the rotating block (3010); First clamping blocks (305) are respectively installed on two symmetrical outer walls of the first clamping frame (304), and a clamping groove (3014) is provided on an outer wall of one side of the first clamping frame (304) close to the moving block (309).

2. The low voltage winding of an oil-immersed transformer with parallel conductors and stacked windings according to claim 1, characterized in that: The limiting block (3011) is in an "L" shape, and the storage frame (3012) is slidably mounted on the limiting block (3011).

3. The low voltage winding of an oil-immersed transformer with parallel conductors and stacked windings according to claim 1, characterized in that: The horizontal cross-section of the moving block (309) is in a "T" shape, a first clamping block (305) is slidably mounted in the groove (306), and the moving block (309) is clamped inside the clamping groove (3014).

4. The low voltage winding of an oil-immersed transformer with parallel conductors and stacked windings according to claim 1, characterized in that: The winding assembly (4) comprises a winding body (401), the top and bottom of the winding body (401) are respectively fixedly mounted with second clamping blocks (402), a second clamping block (402) is slidably mounted in the inner cavity of the second clamping frame (307), and another second clamping block (402) is slidably mounted in the inner cavity of the first clamping frame (304).

5. The low voltage winding of an oil-immersed transformer with parallel conductors and stacked windings according to claim 1, characterized in that: A cover plate (2) is fixedly mounted on the top of the oil-immersed transformer body (1) by means of bolts (5).

6. The low voltage winding of an oil-immersed transformer with parallel conductors and stacked windings according to claim 1, characterized in that: Heat sinks are evenly arranged on the outer wall of the oil-immersed transformer body (1).

Images