Transformer capable of preventing iron core from deviating

Abstract

The utility model relates to the technical field of transformers, in particular to a transformer capable of preventing an iron core from shifting. The transformer capable of preventing the iron core from shifting comprises a box body used for playing a foundation supporting role, a box cover connected with the box body through bolts is arranged at the top of the box body, and an iron core assembly used for conducting electromagnetic conversion operation is arranged in the box body. A stabilizing assembly for connecting and stabilizing is arranged between the box cover and the iron core assembly; due to the fact that the transformer is provided with the stabilizing assembly, the iron core assembly and the box cover can be connected and fixed through the stabilizing assembly, and then the box cover and the box body are connected and fixed, so that the iron core assembly is stably arranged in the box body, and the problem that when a transformer in the prior art adopts a locating pin to conduct iron core locating, the locating pin cannot locate the iron core is solved. And no matter a single positioning pin or a plurality of positioning pins are adopted, the positioning and the installation of the iron core cannot be effectively realized.

Description

Technical Field

[0001] The present application relates to the technical field of transformers, and in particular to a transformer capable of preventing core deviation. Background Art

[0002] In existing transformer designs, the iron core is the core component of the transformer. Its stability and positional accuracy are crucial to the transformer's performance and lifespan. Traditionally, the iron core is placed directly inside the transformer box, with one or a few upwardly protruding positioning pins designed at the bottom of the box to attempt to fix the iron core's position. However, this design has significant drawbacks:

[0003] Limitations of a single locating pin: It is difficult to effectively fix the iron core using only a single locating pin, especially during transportation. Due to vibration and bumps, the iron core is prone to shift in the unfixed direction, which may not only cause damage to the iron core from friction with the inner wall of the box, but may also affect the electrical performance and safety of the transformer.

[0004] Applicability of multiple locating pins: Although increasing the number of locating pins may seem to improve the fixing effect, in actual operation, due to the size differences or processing errors of different batches of cores, the design of multiple locating pins often makes it difficult to install the cores, or even makes it impossible to smoothly place them into the box, increasing the complexity of production and installation.

[0005] Therefore, how to achieve effective positioning of the iron core to avoid its positional displacement inside the box and perform convenient installation operations can effectively improve the safety of the transformer during use. Utility Model Content

[0006] The problem to be solved by the present application is that when the existing transformer adopts positioning pins to position the core, no matter whether a single pin or multiple pins are used, the core cannot be effectively positioned and installed.

[0007] In order to solve the above technical problems, the present application provides a transformer that prevents core deviation, including a box body for serving as a basic support, a box cover connected to the top of the box body by bolts, an iron core assembly for performing electromagnetic conversion operations arranged inside the box body, and a stabilizing assembly arranged between the box cover and the iron core assembly for stabilizing the connection.

[0008] Since the transformer of the present application is designed with a stabilizing component, the iron core assembly can be connected and fixed to the box cover through the stabilizing component, and then connected and fixed to the box cover, so that the iron core assembly can be stably placed inside the box, solving the problem in the prior art that when using locating pins to position the iron core, whether a single or multiple locating pins are used, the positioning and installation of the iron core cannot be effectively achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 Schematic diagram of the three-dimensional structure of the embodiment.

[0010] Figure 2 Schematic diagram of the three-dimensional structure of the heat sink.

[0011] Figure 3 It is a schematic diagram of the front structure of the heat sink.

[0012] Figure 4 This is a schematic diagram of the connection status of the stable components and the core components.

[0013] Figure 5 It is a schematic diagram of the three-dimensional structure of the core assembly.

[0014] Figure 6 A schematic diagram of the three-dimensional structure of a stable component.

[0015] In the figure: 1. Box cover; 2. Heat sink; 3. Box body; 4. Casters; 5. Support bar; 6. Pressure bar; 7. Fin; 8. Stabilizing assembly; 9. Core assembly; 10. Core body; 11. Frame; 12. Winding; 13. Connecting rod; 14. Spacer; 15. Pull plate; 16. Pull rod. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application. Example

[0017] The present application relates to a transformer for preventing core deviation, such as Figure 1 As shown, the transformer includes a box body 3 for serving as a basic support, a box cover 1 connected to the box body 3 by bolts is arranged on the top, an iron core assembly 9 for performing electromagnetic conversion operations is arranged inside the box body 3, and high-voltage terminals and low-voltage terminals for performing high-low voltage conversion operations are arranged on the upper part of the box cover 1. In order to prevent the iron core assembly 9 from positional displacement inside the box body 3, a stabilizing assembly 8 for stabilizing the connection is arranged between the box cover 1 and the iron core assembly 9.

[0018] Since the iron core assembly 9 inside the transformer will generate a large amount of accumulated heat during operation, in order to improve the heat dissipation capacity of the transformer, heat sinks 2 that can improve its heat dissipation capacity are symmetrically arranged on both sides of the box body 3. The heat sink 2 and the box body 3 are welded together, and fins 7 that protrude outward and can perform heat dissipation operations are evenly arranged on the upper length direction of the heat sink 2. The hollow structure inside the fin 7 facilitates the flow of insulating oil inside it. In order to prevent the fin 7 from bending and deforming during use, struts 5 for connecting and fixing are horizontally arranged at the top and bottom ends of the multiple fins 7, and a pressure strip 6 is added at the midline position of the width direction of the heat sink 2 to prevent it from expanding outward due to heat and thus desoldering from the box body 3. This ensures that the heat sink 2 can be firmly connected to the box body 3 and can avoid deformation due to thermal expansion.

[0019] In order to facilitate the transportation of the transformer, casters 4 for walking are symmetrically arranged at the bottom of the box 3.

[0020] The core assembly 9 includes a core body 10, a winding 12, a frame 11, a connecting rod 13 and a spacer 14. The winding 12 is arranged on the upper part of the core body 10. The core body 10 is surrounded by a frame 11 for limiting the position, and the frames 11 are pulled and fixed by a connecting rod 13 with a nut. In order to fix the winding 12 with the help of the frame 11, spacers 14 for abutting against the frame 11 are symmetrically arranged at the upper and lower ends of the winding 12.

[0021] The stabilizing component 8 includes a pull rod 16 and a pull plate 15. There are two pull plates 15, one of which is placed under the box cover 1 and the other is placed on the top of the frame 11. The fastening distance between the pull rod 16 and the two pull plates 15 is adjusted by bolts, so that the core assembly 9 can be stably placed under the box cover 1.

[0022] When in use, the timing of connecting and fixing the core assembly 9 and the box cover 1 is selected according to the dead weight of the core assembly 9. If the dead weight of the core assembly 9 is large and the box cover 1 cannot carry it for lifting and transportation, the core assembly 9 is first pre-placed inside the box body 3, and then insulating oil is added to immerse half of the box body 3, and then the pull plate 15 is respectively installed to the lower part of the box cover 1 and the top of the frame 11, and then the pull rod 16 is installed, and then the box cover 1 and the box body 3 are connected and fixed by bolts. At the same time, if the box cover 1 and the box body 3 are not completely aligned, the box cover 1 can also be moved, and then the core assembly 9 can be driven by the pull rod 16. It moves synchronously inside the box body 3, and since the box body 3 is already filled with insulating oil, the resistance between the core assembly 9 and the box body 3 can also be reduced. If the core assembly 9 has a small weight, it can be pre-connected with the cover plate through the pull rod 16 and the pull plate 15, and then the cover plate together with the core assembly 9 can be directly hoisted into the box body 3. It should be noted that in order to realize the post-installation operation between the box cover 1 and the core assembly 9, no nut can be set between the pull rod 16 and the upper surface of the pull plate 15 on the upper part of the frame 11, so that the pull rod 16 can be lifted and stored in the vertical direction along the pull rod 16, but it will not cause the core assembly 9 to move horizontally circumferentially.

[0023] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0024] It should be readily understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0025] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be in other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A transformer for preventing core displacement, comprising a box for supporting a foundation, characterized in that: A box cover connected to the box body by bolts is arranged on the top of the box body, an iron core assembly for performing electromagnetic conversion operations is arranged inside the box body, and a stabilizing assembly for stabilizing the connection is arranged between the box cover and the iron core assembly.

2. The transformer for preventing core deviation according to claim 1, characterized in that: Radiating plates are symmetrically arranged on both sides of the box to improve its heat dissipation capacity, and the radiating plates are connected to the box by welding.

3. The transformer for preventing core deviation according to claim 1, wherein: Fins that protrude outwards and can perform heat dissipation operations are evenly arranged along the length direction of the upper portion of the heat dissipation plate.

4. The transformer for preventing core deviation according to claim 1, wherein: The inside of the fin is a hollow structure.

5. The transformer for preventing core deviation according to claim 1, wherein: The top and bottom ends of the multiple fins are transversely provided with support bars for connecting and fixing.

6. The transformer for preventing core displacement according to claim 1, wherein: A pressure strip is provided at the center line of the heat sink in the width direction to prevent it from expanding outwards due to heat, thereby preventing it from being desoldered from the box body.

7. The transformer for preventing core displacement according to claim 1, characterized in that: Casters for walking are symmetrically arranged at the bottom of the box.

8. The transformer for preventing core displacement according to claim 1, wherein: The iron core assembly includes a core body, winding, frame, connecting rod and spacer. The winding is arranged on the upper part of the core body. The core body is surrounded by a frame for limiting the position. The frames are pulled and fixed by connecting rods with nuts. The upper and lower ends of the winding are symmetrically arranged with spacers for contacting the frame.

9. The transformer for preventing core displacement according to claim 1, characterized in that: The stabilizing component includes a pull rod and a pull plate. There are two pull plates, one of which is placed under the box cover and the other is placed on the top of the frame. The fastening distance between the pull rod and the two pull plates is adjusted by bolts.

10. The transformer for preventing core displacement according to claim 1, characterized in that: The upper part of the box cover is provided with high-voltage terminals and low-voltage terminals for high-low voltage conversion operations.

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