Spliced shell bottom plate and bottom structure of dry-type transformer and dry-type transformer

Abstract

The utility model discloses a spliced shell bottom plate of a dry-type transformer, a bottom structure and the dry-type transformer. The spliced shell bottom plate of the dry-type transformer comprises a first bottom plate, a second bottom plate and a third bottom plate, the second bottom plate can be detachably connected with the bottom feet of the transformer main body; the first bottom plate is provided with a first covering part; the third bottom plate is provided with a second covering part; the first covering part is detachably connected with the second bottom plate and can be fixed on the first side of the second bottom plate; the second covering part is detachably connected with the second bottom plate and can be fixed to the second side of the second bottom plate. When the housing bottom plate needs to be detached to enter places with cramped environments, the first bottom plate and the third bottom plate can be detached, so that the transverse size of the housing bottom plate is reduced, and the housing bottom plate can enter an installation main place through a narrow space; according to the utility model, the problems that the bottom plate of the shell of the traditional dry-type transformer is of a non-spliced structure, is difficult to disassemble in blocks, is large in transverse size, and affects the field installation of the dry-type transformer are solved.

Description

Technical Field

[0001] This utility model belongs to the field of transformer technology, specifically relating to a dry-type transformer modular housing base plate, bottom structure, and dry-type transformer. Background Technology

[0002] A transformer is a static electrical device that uses the principle of electromagnetic induction to convert electrical energy from one type of alternating current (AC) voltage into another type of AC voltage at the same frequency. The main functions of a transformer include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization. Transformers can be classified into dry-type transformers and oil-type transformers. Dry-type transformers, which use silicone rubber as insulation, possess excellent properties such as safety, reliability, high efficiency, energy saving, environmental friendliness, and recyclable materials. They are widely used in various fields, especially in special environments such as high-altitude, cold-weather, and dual-condition applications. This places higher demands on their casing.

[0003] The casing of a dry-type transformer plays a crucial protective role in its operation. Different casings are selected based on the characteristics of the operating environment and protection requirements to prevent foreign objects from entering and causing serious faults such as short circuits and power outages, thus providing a safety barrier. However, traditional dry-type transformer casings cannot be disassembled, making transportation and installation quite inconvenient, especially in confined spaces where the casing needs to be disassembled for installation. The base plate, as the part connected to the transformer, cannot be disassembled, making access difficult. Currently, there is a lack of a modular casing base plate for dry-type transformers that facilitates disassembly and assembly, meeting the needs of environments requiring disassembly for base plate access; a lack of a bottom structure with a novel modular casing base plate to provide a stable foundation for the transformer body; and a lack of a dry-type transformer with a novel bottom structure to facilitate installation and use.

[0004] Therefore, a new technology is needed to address the lack of a modular housing base plate for dry-type transformers in existing technologies; a new technology is needed to address the lack of a bottom structure with a novel modular housing base plate in existing technologies; and a new technology is needed to address the lack of a dry-type transformer with a novel bottom structure in existing technologies. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides a modular housing base plate for dry-type transformers, which facilitates disassembly and assembly, meeting the needs of some confined environments where the housing base plate needs to be disassembled and brought into the site.

[0006] A modular base plate for a dry-type transformer includes a first base plate, a second base plate, and a third base plate; the second base plate is detachably connected to the base of the transformer body; the first base plate has a first covering portion; the third base plate has a second covering portion; the first covering portion is detachably connected to the second base plate and can be fixed to a first side of the second base plate; the second covering portion is detachably connected to the second base plate and can be fixed to a second side of the second base plate.

[0007] Furthermore, one or more of the first base plate, the second base plate, and the third base plate are provided with heat dissipation holes.

[0008] Furthermore, the second base plate is provided with a high-voltage inlet hole.

[0009] Furthermore, the first base plate and / or the third base plate are provided with temperature control cable outlet holes.

[0010] Furthermore, the first covering part is provided with a first connecting hole; the second base plate is provided with a first hole corresponding to and connected to the first connecting hole; the second covering part is provided with a second connecting hole; and the second base plate is provided with a second hole corresponding to and connected to the second connecting hole.

[0011] Furthermore, the second base plate is provided with a plurality of third holes; the third holes are used for connection with the base of the outer casing and the base of the transformer body.

[0012] Another objective of this invention is to provide a bottom structure for a dry-type transformer, which can provide a stable bottom foundation for the transformer body.

[0013] A bottom structure for a dry-type transformer includes a casing base, a transformer body base, and a modular casing base plate for the dry-type transformer; a first side of the second base plate is detachably connected to the transformer body base; a second side of the second base plate is detachably connected to the casing base; a first base plate is disposed on a first side of the second base plate; and a third base plate is disposed on a second side of the second base plate.

[0014] Furthermore, the base of the outer casing is one of channel steel, I-beam steel, or square cross-section tube.

[0015] Another objective of this invention is to provide a dry-type transformer that is easy for people to install and use.

[0016] A dry-type transformer includes a transformer body, an outer casing frame, an outer casing panel, and a bottom structure of the dry-type transformer; the transformer body base is disposed at the bottom of the transformer body; a second base plate is disposed at the bottom of the transformer body base; a first base plate is disposed on a first side of the second base plate; a third base plate is disposed on a second side of the second base plate; the outer casing base is disposed at the bottom of the second base plate; one or more of the first base plate, the second base plate, and the third base plate are connected to the outer casing frame; the outer casing frame is connected to the outer casing panel.

[0017] Furthermore, the outer shell frame and the outer shell enclosure are connected by an L-shaped connector.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] A modular base plate for a dry-type transformer casing includes a first base plate, a second base plate, and a third base plate. The second base plate can be fixed to the base of the transformer body (generally, once the second base plate is fixed to the base of the transformer body, it does not need to be disassembled (although it can be disassembled)). The base of the transformer body can be fixed to the bottom of the transformer body. When encountering confined spaces where the base plate needs to be disassembled for installation, this invention allows the first and third base plates to be disassembled, reducing the lateral dimensions of the base plate and enabling it to pass through narrow spaces into the installation site. After installation, the first and third base plates can be repositioned for reinstallation. This invention solves the problem of traditional non-modular dry-type transformer casing base plates being difficult to disassemble in sections, having large lateral dimensions, and affecting the installation of dry-type transformers.

[0020] A bottom structure for a dry-type transformer, featuring a novel modular base plate for dry-type transformer housings, provides a stable foundation for the transformer body, thereby improving the safety of dry-type transformer operation.

[0021] A dry-type transformer with a novel bottom structure that facilitates installation and use. Attached Figure Description

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0023] Figure 1 This is a pre-assembly drawing (plan view) of the modular housing base plate of the dry-type transformer of this utility model:

[0024] Figure 2 yes Figure 1 A schematic diagram (plan view) of the assembled modular housing base plate of a dry-type transformer;

[0025] Figure 3yes Figure 2 A plan view of the transformer body when it is arranged in the outer frame and at the bottom of the transformer body;

[0026] Figure 4 This is a diagram showing the connection relationship between the second base plate and the base of the transformer body and the base of the outer casing (positional relationship diagram) (elevation view). (At this point, it mainly shows that the first base plate and the third base plate have been removed, leaving the second base plate).

[0027] Figure 5 These are three views of the transformer body base with connectors (the first view is the front side view of the transformer body base; the second view is the left view of the first view; and the third view is the top view of the first view).

[0028] Figure 6 These are two views of the base of the casing (the first image is the front view of the base of the casing; the second image is the top view of the first image);

[0029] Figure 7 This is a plan view (top view) of the bottom structure of the dry-type transformer of this utility model (mainly showing the installation relationship of the outer casing feet, the dry-type transformer modular outer casing base plate, and the transformer body feet) (wherein, the dry-type transformer modular outer casing base plate is simplified schematic diagram):

[0030] Figure 8 yes Figure 7 Elevation view (where the dry-type transformer's modular housing base plate is a simplified schematic, i.e., it does not show that the dry-type transformer's modular housing base plate is specifically composed of a first base plate, a second base plate, and a third base plate) (mainly showing the elevation positional relationship of the housing base, the dry-type transformer's modular housing base plate, and the transformer's main body base).

[0031] Figure 9 This is an elevation view of the dry-type transformer of this utility model;

[0032] Figure 10 yes Figure 9 A top view of a dry-type transformer (mainly showing the mounting position of the casing feet);

[0033] Figure 11 yes Figure 9 After opening the outer casing door of the dry-type transformer, a schematic diagram of the internal transformer body can be seen (mainly showing the positional relationship of the transformer body, the transformer body base, the dry-type transformer's assembled outer casing base plate, and the outer casing base).

[0034] Figure 12 yes Figure 11 The elevation positional relationship between the main body of the transformer and the base of the main body of the transformer (wherein, connector 221 is not shown);

[0035] Figure 13These are two views of the L-shaped connector of this utility model (the first image is the front elevation view of the L-shaped connector; the second image is the left view of the first image).

[0036] Figure label:

[0037] 1-Dry-type transformer modular housing base plate; C-Heat dissipation holes; D-High voltage inlet hole; E-Temperature control outlet hole;

[0038] 11-First base plate; 111-First cover part; F1-First connecting hole

[0039] 12 - Second base plate; A - First side; B - Second side; G1 - First hole; G2 - Second hole; G3 - Third hole; H1 - First surface; H2 - Second surface;

[0040] 13-Third base plate; 131-Second cover; F2-Second connecting hole;

[0041] 2- Bottom structure of dry-type transformer;

[0042] 21 - Housing base; K1 - First adapter hole;

[0043] 22-Transformer body base; K2-Second adapter hole; 221-Connector; M-Mounting hole;

[0044] 3-Dry-type transformer; 31-Transformer body; 32-Shell frame; 33-Shell enclosure; 34-L-type connector. Detailed Implementation

[0045] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0046] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0047] Reference Figures 1 to 13A dry-type transformer modular housing base plate 1 includes a first base plate 11, a second base plate 12, and a third base plate 13; the second base plate 12 is detachably connected to the transformer body base 22; the first base plate 11 has a first covering portion 111; the third base plate 13 has a second covering portion 131; the first covering portion 111 is detachably connected to the second base plate 12 and can be fixed to a first side A of the second base plate 12; the second covering portion 131 is detachably connected to the second base plate 12 and can be fixed to a second side B of the second base plate 12.

[0048] Reference Figures 1 to 3 In one embodiment, the first covering part 111 is a long strip plate with two locations; the second covering part 131 is a long strip plate with two locations.

[0049] Reference Figures 1 to 3 In one embodiment, one or more of the first base plate 11, the second base plate 12, and the third base plate 13 are provided with heat dissipation holes C. In one embodiment, the heat dissipation holes C are keyway holes. A plurality of the heat dissipation holes C are arranged in a row and column configuration.

[0050] Reference Figures 1 to 3 In one embodiment, the second base plate 12 is provided with a high-voltage inlet hole D. In one embodiment, the high-voltage inlet hole D is a circular hole.

[0051] Reference Figures 1 to 3 In one embodiment, the first base plate 11 and / or the third base plate 13 are provided with a temperature control outlet hole E. In one embodiment, the temperature control outlet hole E is a circular hole.

[0052] Reference Figures 1 to 3 In one embodiment, the first cover portion 111 is provided with a first connecting hole F1; the second base plate 12 is provided with a first hole G1 corresponding to and connected to the first connecting hole F1; the second cover portion 131 is provided with a second connecting hole F2; and the second base plate 12 is provided with a second hole G2 corresponding to and connected to the second connecting hole F2. In one embodiment, the first connecting hole F1, the second connecting hole F2, the first hole G1, and the second hole G2 are all circular holes.

[0053] Reference Figures 1 to 3 In one embodiment, the second base plate 12 is provided with a plurality of third holes G3; the third holes G3 are used for connection with the housing base 21 and the transformer body base 22.

[0054] In this utility model, the dry-type transformer modular housing base plate 1, compared with the housing base plate in the prior art, is easier to install and disassemble due to its modular structure, which improves the convenience and efficiency of on-site installation.

[0055] Another objective of this utility model is to provide a bottom structure for a dry-type transformer, which can provide a stable bottom foundation for the transformer body 31.

[0056] Reference Figures 1 to 13 A dry-type transformer bottom structure 2 includes a housing base 21, a transformer body base 22, and a dry-type transformer modular housing base plate 1; the first surface H1 of the second base plate 12 can be detachably connected to the transformer body base 22; the second surface H2 of the second base plate 12 can be detachably connected to the housing base 21; the first base plate 11 can be disposed on the first side A of the second base plate 12; and the third base plate 13 can be disposed on the second side B of the second base plate 12.

[0057] Reference Figures 4 to 12 In one embodiment, the outer casing base 21 is one of channel steel, I-beam steel, or square cross-section tube.

[0058] Reference Figures 4 to 12 In one embodiment, the transformer body base 22 is one of channel steel, I-beam steel, or square cross-section tube.

[0059] Reference Figures 4 to 12 In one embodiment, the outer casing base 21 is provided with a first adapter hole K1 corresponding to the third hole G3; the transformer body base 22 is also provided with a second adapter hole K2 corresponding to the third hole G3; during installation, the second adapter hole K2 of the transformer body base 22, the third hole G3 of the second base plate 12 of the dry-type transformer modular outer casing base plate 1, and the first adapter hole K1 of the outer casing base 21 are aligned and then locked with screws or bolts; the transformer body base 22 is provided with a connector 221, and the transformer body base 22 is connected to the bottom of the transformer body 31 through the connector 221; the connector 221 is provided with a mounting hole M; the mounting hole M of the connector 221 is connected to the bottom of the transformer body 31 by screws, thereby achieving fixation.

[0060] The first connecting hole F1 of the first base plate 11 is aligned with the first hole G1 on the first side A of the second base plate 12, and can be detachably fixed with screws or bolts. Similarly, the second connecting hole F2 of the third base plate 13 is aligned with the second hole G2 on the second side B of the second base plate 12, and can be detachably fixed with screws or bolts. When encountering confined spaces where the base plate needs to be disassembled for installation, only the first base plate 11 and the third base plate 13 need to be removed to reduce the lateral dimensions of the base plate, allowing it to pass through the narrow space into the installation site. After entering, the first base plate 11 and the third base plate 13 can be reinstalled in their original positions. Generally, the second base plate 12 does not need to be disassembled after it is fixed to the transformer body base 22, although it can be disassembled at other times.

[0061] Reference Figures 1 to 13 In one embodiment, the first adapter hole K1 is an elongated hole; the second adapter hole K2 is a round hole; the third hole G3 is a round hole; and the mounting hole M is an oblong hole.

[0062] Another objective of this invention is to provide a dry-type transformer that is easy for people to install and use.

[0063] Reference Figures 1 to 13 A dry-type transformer 3 includes a transformer body 31, an outer frame 32, an outer enclosure 33, and a bottom structure 2 of the dry-type transformer; the transformer body base 22 is disposed at the bottom of the transformer body 31; the second base plate 12 is disposed at the bottom of the transformer body base 22; the first base plate 11 is disposed on the first side A of the second base plate 12; the third base plate 13 is disposed on the second side B of the second base plate 12; the outer frame 32 is then connected to the surrounding outer enclosure 33.

[0064] Reference Figures 1 to 13 In one embodiment, the dry-type transformer modular housing base plate 1 is connected to the housing frame 32 via an L-shaped connector 34.

[0065] In one embodiment, the outer shell frame 32 is a tubular component with a square cross-section.

[0066] Reference Figures 1 to 13 In one embodiment, the outer shell frame 32 and the outer shell panel 33 are connected by an L-shaped connector 34.

[0067] In one embodiment, the L-shaped connector 34 is an L-shaped angle iron.

[0068] In one embodiment, the transformer body 31 is mainly composed of a high-voltage coil, a low-voltage coil, and an iron core.

[0069] In one embodiment, the installation of the dry-type transformer modular housing base plate 1 includes the following steps:

[0070] S1. Place the processed first base plate 11, second base plate 12, and third base plate 13 onto the outer shell frame 32. The third hole G3 of the second base plate 12 aligns with the first adapter hole K1 of the outer shell base 21, and is secured with bolts. The first base plate 11 and the second base plate 12 have overlapping portions, which constitute the first covering portion 111 of this invention; the third base plate 13 and the second base plate 12 have overlapping portions, which constitute the second covering portion 131 of this invention.

[0071] S2. The dry-type transformer modular housing base plate 1, which is composed of the first base plate 11, the second base plate 12 and the third base plate 13 of this utility model, is fixed to the housing frame 32 with L-shaped angle iron, and the housing frame 32 is then fixed to the housing enclosure 33.

[0072] S3. Lift the transformer body 31 and enter from the top of the casing. The second adapter hole K2 on the bottom foot 22 of the transformer body corresponds to the third hole G1 on the bottom plate 1 of the dry-type transformer modular casing. Fix it with bolts. At this time, the bolts are fixed through the first adapter hole K1, the third hole G3 and the second adapter hole K2.

[0073] When installing the dry-type transformer 3, if encountering confined spaces requiring partial disassembly, the top and surrounding outer casing panels 33 can be removed. For the bottom casing, the first bottom plate 11 and the third bottom plate 13 can be removed, leaving only the outer casing base 21 and the second bottom plate 12. These are then integrated with the transformer body 31 via the transformer body base 22. Removing the first bottom plate 11 and the third bottom plate 13 reduces the lateral dimensions of the outer casing base. This allows for easy transport of the transformer body 31 through narrow spaces using a forklift to the installation site. Once inside, the first bottom plate 11 and the third bottom plate 13 can be repositioned for installation. This invention solves the problem of traditional dry-type transformer casing base plates having a non-assembled structure, making disassembly difficult and resulting in large lateral dimensions that hinder installation.

[0074] The modular housing base plate and bottom structure of the dry-type transformer described in this utility model, as well as other aspects of the dry-type transformer, are referenced in the prior art and will not be repeated here.

[0075] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A modular base plate for a dry-type transformer, characterized in that, It includes a first base plate, a second base plate, and a third base plate; the second base plate is detachably connected to the base of the transformer body; the first base plate has a first covering part; the third base plate has a second covering part; the first covering part is detachably connected to the second base plate and can be fixed to a first side of the second base plate. The second cover is detachably connected to the second base plate and can be fixed to the second side of the second base plate.

2. The dry-type transformer modular housing base plate according to claim 1, characterized in that, One or more of the first base plate, the second base plate, and the third base plate are provided with heat dissipation holes.

3. The dry-type transformer modular housing base plate according to claim 1, characterized in that, The second base plate is provided with a high-voltage inlet hole.

4. The dry-type transformer modular housing base plate according to claim 1, characterized in that, The first base plate and / or the third base plate are provided with temperature control outlet holes.

5. The dry-type transformer modular housing base plate according to claim 1, characterized in that, The first covering part is provided with a first connecting hole; the second base plate is provided with a first hole corresponding to the first connecting hole; the second covering part is provided with a second connecting hole; the second base plate is provided with a second hole corresponding to the second connecting hole.

6. The dry-type transformer modular housing base plate according to claim 1, characterized in that, The second base plate is provided with several third holes; the third holes are used for connection with the base of the outer casing and the base of the transformer body.

7. A bottom structure for a dry-type transformer, characterized in that, It includes a housing base, a transformer body base, and a dry-type transformer modular housing base plate as described in any one of claims 1 to 6; the first surface of the second base plate can be detachably connected to the transformer body base; the second surface of the second base plate can be detachably connected to the housing base.

8. The bottom structure of the dry-type transformer according to claim 7, characterized in that, The base of the outer casing is one of the following: channel steel, I-beam steel, or square cross-section tube.

9. A dry-type transformer, characterized in that, The transformer includes a transformer body, an outer frame, an outer enclosure, and a bottom structure for a dry-type transformer as described in any one of claims 7 to 8; the transformer body base is disposed at the bottom of the transformer body; the second base plate is disposed at the bottom of the transformer body base; the first base plate is disposed on a first side of the second base plate; The third base plate is disposed on the second side of the second base plate; the outer shell base is disposed at the bottom of the second base plate; one or more of the first base plate, the second base plate, and the third base plate are connected to the outer shell frame; the outer shell frame is connected to the outer shell enclosure.

10. The dry-type transformer according to claim 9, characterized in that, The outer shell frame and the outer shell enclosure are connected by an L-shaped connector.

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