Foil wire wound multi-split multi-voltage three-phase transformer

Abstract

The utility model discloses a foil wire wound multi-split multi-voltage three-phase transformer which comprises a plurality of battery cells and a plurality of primary side multi-voltage split windings wound on each battery cell from top to bottom, the tops of the plurality of battery cells are connected through first silicon iron, and the bottoms of the plurality of battery cells are connected through second silicon iron. Zero copper bars are arranged on the backs of the plurality of primary side multi-voltage split windings of each battery cell, the tops of the plurality of zero copper bars are connected with the first silicon iron through first stainless steel clamps, and the bottoms of the plurality of zero copper bars are connected with the second silicon iron through second stainless steel clamps; a plurality of rows of transverse heat dissipation air channels are formed in each primary side multi-voltage split winding, a base is arranged at the bottom of the second stainless steel clamp, top-blowing type cross flow fans are arranged on the front portion and the rear portion of the base, and a plurality of columns of longitudinal heat dissipation air channels are arranged on the top-blowing type cross flow fans. The utility model has the advantages of wide output voltage range, large output voltage regulation span, long service life, good heat dissipation performance and the like.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically to a foil-wound multi-split multi-voltage three-phase transformer. Background Technology

[0002] Traditional dry-type transformers typically use wire-wound low-voltage coils, requiring multiple coils to be connected in parallel. If a layered winding method is used, a large helix angle can be generated, leading to significant mechanical force perpendicular to the coil during a short circuit, potentially damaging it. Dry-type transformers often use foil windings for their low-voltage coils. Foil windings generally employ axial air channels. During winding, the air channel plate is wound in at the corresponding number of turns and then removed, forming an axial air channel. This allows for heat dissipation of the low-voltage coil, avoiding the problem of only cooling the coil layers adjacent to the hollow support bars, which is unsuitable for heat dissipation methods. However, this method still has relatively low heat dissipation performance. Furthermore, in industrial production, such as testing, rectification, and metallurgical enterprises, voltage requirements are diverse. Traditional transformers can only be connected to a single voltage level system, failing to meet the needs of these special applications. This necessitates the use of multiple voltage-regulating transformers, resulting in large footprints, high costs, and low reliability. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a foil-wound multi-split multi-voltage three-phase transformer.

[0004] The technical solution of this utility model is as follows:

[0005] A foil-wound multi-splitting multi-voltage three-phase transformer includes several cells and several primary-side multi-voltage split windings wound from top to bottom on each cell. The tops of the cells are connected by a first silicon iron, and the bottoms are connected by a second silicon iron. A zero copper busbar is provided on the back of each primary-side multi-voltage split winding of each cell. The tops of the zero copper busbars are connected to the first silicon iron by a first stainless steel clamp, and the bottoms are connected to the second silicon iron by a second stainless steel clamp. Several rows of transverse heat dissipation channels are provided on each primary-side multi-voltage split winding, and the transverse heat dissipation channels between the primary-side multi-voltage split windings on the same cell are vertically aligned. A base is provided at the bottom of the second stainless steel clamp, and top-blowing cross-flow fans are provided at the front and back of the base. The top-blowing cross-flow fans have several rows of longitudinal heat dissipation channels corresponding to the transverse heat dissipation channels of the primary-side multi-voltage split windings.

[0006] Furthermore, the battery cell is provided in three parts.

[0007] Furthermore, the upper and lower primary-side multi-voltage split windings on each cell are separated by spacers.

[0008] Furthermore, the first stainless steel clamp is fixed to the first silicon iron by a first clamp bolt, and the second stainless steel clamp is fixed to the second silicon iron by a second clamp bolt.

[0009] Furthermore, two bases are provided opposite to each other.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] (1) This utility model is provided with several battery cells and several primary side multi-voltage split windings. By connecting the top and bottom of several battery cells with silicon iron, several primary side multi-voltage split windings are wound on each battery cell from top to bottom. This combination method makes the transformer output voltage range wide and the output voltage adjustment span large, which can meet a variety of different power needs and is suitable for various power applications, such as voltage regulators, power distribution, rectification, isolation, etc.

[0012] (2) The structural design of this utility model reduces the partial discharge of the transformer, improves the reliability of transformer operation, thereby reducing the damage to the insulation performance of the transformer caused by partial discharge and extending the service life of the transformer.

[0013] (3) This utility model avoids the use of multiple voltage regulating transformers, reduces the equipment footprint and procurement costs, and also reduces the system complexity and maintenance costs, thereby improving the system reliability and stability.

[0014] (4) The present invention has excellent heat dissipation performance. Several rows of transverse heat dissipation channels are provided on each primary multi-voltage split winding, and the transverse heat dissipation channels between the primary multi-voltage split windings on the same cell are vertically aligned. A top-blowing cross-flow fan is provided at the bottom front and back of the transformer. The top-blowing cross-flow fan is provided with several rows of longitudinal heat dissipation channels corresponding to the transverse heat dissipation channels of the primary multi-voltage split winding. This heat dissipation structure greatly improves the heat dissipation performance of the transformer, thereby reducing the temperature rise of the transformer and improving the load capacity and operating efficiency of the transformer. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0016] Figure 1 A schematic diagram of the structure of a foil-wound multi-split multi-voltage three-phase transformer provided by this utility model;

[0017] Figure 2 A side view of a foil-wound, multi-split, multi-voltage three-phase transformer provided by this utility model. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0020] Example

[0021] Please see Figure 1 , Figure 2 This embodiment provides a foil-wound multi-splitting multi-voltage three-phase transformer, including several battery cells and several primary-side multi-voltage split windings 10 wound from top to bottom on each battery cell. In this embodiment, there are three battery cells, and the upper and lower primary-side multi-voltage split windings 10 on each battery cell are separated by spacers 20. The tops of the three battery cells are connected by a first silicon iron 30, and the bottoms of the three battery cells are connected by a second silicon iron 40. A zero copper busbar 50 is provided on the back of each of the several primary-side multi-voltage split windings 10 of each battery cell. The tops of the three zero copper busbars 50 are connected to the first silicon iron 30 by a first stainless steel clamp 60, and the first stainless steel clamp 60 and the first silicon iron 30 are fixed together by a first clamp bolt 70. The bottoms of the three zero copper busbars 50 are connected to the second silicon iron 40 by a second stainless steel clamp 80, and the second stainless steel clamp 80 and the second silicon iron 40 are fixed together by a second clamp bolt 90. Each primary-side multi-voltage split winding 10 is provided with several rows of transverse heat dissipation channels 11, and the transverse heat dissipation channels 11 between the primary-side multi-voltage split windings 10 on the same cell are vertically aligned. The bottom of the second stainless steel clamp 80 is provided with two bases 100 facing each other. The two bases 100 are provided with top-blowing cross-flow fans 110 at the front and back. The top-blowing cross-flow fans 110 are provided with several rows of longitudinal heat dissipation channels 111 corresponding to the transverse heat dissipation channels 11 of the primary-side multi-voltage split windings 10.

[0022] By designing the primary winding as a multi-split structure with multiple voltage levels, the transformer can adapt to different power supply voltage levels and output multiple voltage levels, thereby improving the transformer's adaptability and flexibility, reducing manufacturing costs, improving reliability, and facilitating maintenance.

[0023] The use of foil windings on the secondary side reduces the amount of partial discharge in the transformer, improves the reliability of transformer operation, reduces the damage to the transformer's insulation performance caused by partial discharge, and extends the service life of the transformer.

[0024] This foil-wound multi-split multi-voltage three-phase transformer avoids the need for multiple voltage regulating transformers, thereby reducing the equipment's footprint and procurement costs. It also reduces system complexity and maintenance costs, while improving system reliability and stability.

[0025] By providing several rows of transverse heat dissipation channels 11 on each primary-side multi-voltage split winding 10, the heat dissipation area of ​​the primary-side multi-voltage split winding 10 is increased, and the heat dissipation points are evenly distributed. The transverse heat dissipation channels 11 between the primary-side multi-voltage split windings 10 on the same cell are vertically aligned. Top-blowing cross-flow fans 110 are provided at the bottom front and rear of the transformer. The top-blowing cross-flow fans 110 are provided with several rows of longitudinal heat dissipation channels 111 corresponding to the transverse heat dissipation channels 11 of the primary-side multi-voltage split windings 10. This heat dissipation structure design greatly improves the heat dissipation performance of the transformer, thereby reducing the temperature rise of the transformer and improving the load capacity and operating efficiency of the transformer.

[0026] This foil-wound, multi-split, multi-voltage three-phase transformer has a wide range of applications, as detailed below:

[0027] 1. Industrial sector: In industrial production, such as testing, rectification, metallurgy and other power-consuming mining enterprises, the voltage requirements are diverse. This transformer can meet the requirements of different voltage levels and provide a stable power supply.

[0028] 2. Commercial Sector: In commercial buildings, different electrical equipment may require different voltages. This transformer can flexibly adjust the output voltage according to actual needs to meet the power requirements of various commercial equipment.

[0029] 3. Construction sector: In large buildings, different floors or areas may require different voltages. This transformer can provide appropriate voltage output according to the building's power consumption plan to meet the power needs of different areas within the building.

[0030] 4. Data Center: Data centers have high requirements for power stability and reliability. This transformer can provide a stable voltage output according to the equipment needs of the data center, ensuring the normal operation of the data center.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 foil-wound, multi-split, multi-voltage three-phase transformer, characterized in that: The device includes several battery cells, each with several primary-side multi-voltage split windings wound from top to bottom. The tops of the battery cells are connected by a first silicon iron, and the bottoms of the battery cells are connected by a second silicon iron. Each primary-side multi-voltage split winding has a zero-copper busbar on its back. The tops of the zero-copper busbars are connected to the first silicon iron via a first stainless steel clamp, and the bottoms of the zero-copper busbars are connected to the second silicon iron via a second stainless steel clamp. Each primary-side multi-voltage split winding has several rows of transverse heat dissipation channels, and the transverse heat dissipation channels between the primary-side multi-voltage split windings on the same battery cell are vertically aligned. The bottom of the second stainless steel clamp has a base, and the base has top-blowing cross-flow fans at both the front and back. The top-blowing cross-flow fans have several rows of longitudinal heat dissipation channels corresponding to the transverse heat dissipation channels of the primary-side multi-voltage split windings.

2. The foil-wound multi-split multi-voltage three-phase transformer according to claim 1, characterized in that: The battery cell has three cells.

3. A foil-wound, multi-split, multi-voltage three-phase transformer according to claim 1, characterized in that: The upper and lower primary windings of each cell are separated by spacers.

4. A foil-wound, multi-split, multi-voltage three-phase transformer according to claim 1, characterized in that: The first stainless steel clamp is fixed to the first silicon iron by a first clamp bolt, and the second stainless steel clamp is fixed to the second silicon iron by a second clamp bolt.

5. A foil-wound, multi-split, multi-voltage three-phase transformer according to claim 1, characterized in that: The base is provided in two opposite directions.

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