Air passage plate for dry-type transformer
By using the airway plate design with trapezoidal columns and triangular columns interlaced in the dry transformer, the problems of difficulty in pulling out traditional airway plates and poor versatility are solved, and more efficient heat dissipation and convenient assembly and disassembly are achieved, thereby avoiding resin residues question.
Patent Information
- Application Number
- CN202420723660.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-09
AI Technical Summary
Traditional steel plate rolled airway plates have difficulties in pulling out and poor versatility in dry transformers. The splicing of modified resin airway plates is prone to residual resin, affecting the heat dissipation area.
Several trapezoidal columns and triangular columns are arranged intertwined to form airway plates of different arcs. The trapezoidal columns and triangular columns are squeezed and contacted in surface form. Combined with pulling holes, it is easy to assemble and disassemble, improving versatility and overall heat dissipation efficiency for splicing.
The good versatility and heat dissipation efficiency of the airway plate are achieved, the resin residue at the splicing is avoided, and the assembly and disassembly process is simplified.
Smart Images
Figure CN222168096U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of transformers, and in particular relates to an airway plate for a dry-type transformer. Background Art
[0002] During the manufacturing process of the high-voltage coil of the resin-cast dry-type transformer, a special mold must be used for winding and casting. For products with high heat generation and insufficient heat dissipation area, an airway must be set, and the airway plate is the template for forming the axial heat dissipation airway of the high-voltage coil. Most of the traditional steel plate solid airway plates used at home and abroad are made of rolled and processed steel plates.
[0003] However, the traditional steel plate rolled airway plate has the limitations of being difficult to pull out and not being able to change with the high-voltage coil radius and the reserved airway arc length after one-time processing, resulting in poor versatility.
[0004] For this reason, modified resin airway plates have appeared on the market, but the conventional layout is evenly spaced, the heat dissipation area of a single airway is small, and the overall heat dissipation efficiency is not as good as that of a straight / arc airway. Although it can also be spliced into different sizes for easier removal, the cross-section of the spliced components is a straight / arc airway, which is prone to residual resin in the gaps at the splicing points, affecting the heat dissipation area. Utility Model Content
[0005] The utility model provides an airway plate for a dry-type transformer, aiming to solve the technical problem that when modified resin airway plates are spliced to form a through airway, resin residue is easily left in gaps at the splicing locations, thus affecting the heat dissipation area.
[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide an airway plate for a dry-type transformer, comprising:
[0007] A plurality of trapezoidal columns are arranged side by side, with the edges of the lower bases of two adjacent trapezoidal columns touching each other and the edges of the upper bases being spaced apart; and
[0008] A plurality of triangular columns are respectively arranged between two adjacent trapezoidal columns, one triangular column is arranged between every two trapezoidal columns, and two side surfaces of the triangular column are fitted with the side surfaces of the two adjacent trapezoidal columns; the triangular column has a variety of specifications to fit with the side surfaces of the two trapezoidal columns with different angles;
[0009] The trapezoidal columns arranged in sequence at different angles and the triangular columns of corresponding specifications are arranged alternately to form airway plates with different radians.
[0010] In a possible implementation of the airway plate for a dry-type transformer provided by the utility model, the cross section of the trapezoidal column perpendicular to the length direction is a trapezoidal structure, and the upper base and the lower base of the trapezoidal structure are both straight lines.
[0011] In a possible implementation of the airway plate for a dry-type transformer provided by the utility model, the cross section of the trapezoidal column perpendicular to the length direction is a trapezoidal structure, and the upper bottom and the lower bottom of the trapezoidal structure are both arc-shaped.
[0012] In a possible implementation of the airway plate for a dry-type transformer provided by the utility model, the cross section of the triangular prism perpendicular to the length direction is a triangular structure.
[0013] In a possible implementation of the airway plate for a dry-type transformer provided by the utility model, a pulling hole is provided on the side surface of one end of the trapezoidal column, and the pulling hole is suitable for being hooked by an external tool to pull out the trapezoidal column.
[0014] The beneficial effect of the airway plate for a dry-type transformer provided by the utility model is that compared with the prior art, the airway plate for a dry-type transformer provided by the utility model has the trapezoidal columns arranged in sequence at different angles and the triangular columns of corresponding specifications arranged alternately to form airway plates with different radians, and has good versatility, and the trapezoidal columns and the triangular columns are pressed against each other and are in surface contact, which is less likely to have residual resin at the joints than the linear contact of the existing airway plates. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic diagram of the three-dimensional structure of an airway plate for a dry-type transformer provided in Embodiment 1 of the utility model;
[0016] Figure 2 A schematic diagram of the three-dimensional structure of an airway plate for a dry-type transformer provided in the second embodiment of the utility model;
[0017] Figure 3 A schematic diagram of the three-dimensional structure of an airway plate for a dry-type transformer provided in Embodiment 3 of the utility model;
[0018] Description of reference numerals:
[0019] 10. Trapezoidal column; 11. Pull-out hole; 12. Bump; 20. Triangular column. DETAILED DESCRIPTION
[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.
[0024] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0025] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.
[0026] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.
[0027] Please also read Figures 1 to 3 The airway plate for dry-type transformer provided by the utility model is now described. The airway plate for dry-type transformer includes a plurality of trapezoidal columns 10 and a plurality of triangular columns 20. The plurality of trapezoidal columns 10 are arranged side by side, and the edges of the lower bases of two adjacent trapezoidal columns 10 are in contact with each other, and the edges of the upper bases are spaced apart from each other. The plurality of triangular columns 20 are respectively arranged between two adjacent trapezoidal columns 10, and a triangular column 20 is arranged between every two trapezoidal columns 10, and the two side surfaces of the triangular column 20 are fitted with the side surfaces of the two adjacent trapezoidal columns 10. The triangular column 20 has a variety of specifications that match the trapezoidal columns 10, so as to fit with the side surfaces of two trapezoidal columns 10 at different angles.
[0028] The trapezoidal columns 10 and the triangular columns 20 of corresponding specifications arranged in sequence at different angles are arranged alternately to form airway plates with different curvatures.
[0029] It should be noted that the trapezoidal columns 10 used in airways with the same height but different curvatures are universal and only need to be matched with triangular columns 20 of different specifications. Compared with the traditional steel plate rolled airway plate, it has better universality.
[0030] The beneficial effect of the airway plate for dry-type transformers provided by the utility model is that compared with the prior art, the airway plate for dry-type transformers provided by the utility model is staggered with trapezoidal columns 10 and triangular columns 20 of corresponding specifications arranged in sequence at different angles to form airway plates of different curvatures, which has good versatility, and the trapezoidal columns 10 and triangular columns 20 are pressed against each other and are in surface contact, which is less likely to have residual resin at the joints than the linear contact of the existing airway plates.
[0031] like Figure 1 As shown, in a specific implementation of the airway plate for a dry-type transformer provided in an embodiment of the utility model, the cross section of the trapezoidal column 10 perpendicular to the length direction is a trapezoidal structure.
[0032] Further, such as Figure 1 and Figure 2 As shown, in a specific implementation of the airway plate for a dry-type transformer provided in an embodiment of the utility model, the cross-section of the trapezoidal column 10 perpendicular to the length direction is a trapezoidal structure, and the upper and lower bases of the trapezoidal structure can be straight edges, which are easy to process, or arc-shaped.
[0033] like Figure 1 and Figure 2 As shown, in a specific implementation of the airway plate for a dry-type transformer provided in an embodiment of the utility model, a pulling hole 11 is provided on the side of one end of the trapezoidal column 10, and the pulling hole 11 is suitable for being hooked by an external tool to pull out the trapezoidal column 10.
[0034] After the pouring is completed, a tool can be inserted into the pulling hole 11 to hook the trapezoidal column 10, and the trapezoidal column 10 can be pulled out conveniently.
[0035] like Figure 3 As shown, in a specific implementation of the airway plate for a dry-type transformer provided in an embodiment of the utility model, a protrusion 12 is provided on the side surface of one end of the trapezoidal column 10.
[0036] It should be noted that after the first trapezoidal column 10 is pulled out, the whole becomes relatively loose; at this time, the protrusion 12 can be hooked by hand, and the remaining trapezoidal columns 10 and triangular columns 20 can be pulled out one by one by hand.
[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An airway plate for a dry-type transformer, characterized in that: include: A plurality of trapezoidal columns are arranged side by side, with the edges of the lower bases of two adjacent trapezoidal columns touching each other and the edges of the upper bases being spaced apart; and A plurality of triangular columns are respectively arranged between two adjacent trapezoidal columns, one triangular column is arranged between every two trapezoidal columns, and two side surfaces of the triangular column are fitted with the side surfaces of the two adjacent trapezoidal columns; the triangular column has a variety of specifications to fit with the side surfaces of the two trapezoidal columns with different angles; The trapezoidal columns arranged in sequence at different angles and the triangular columns of corresponding specifications are arranged alternately to form airway plates with different radians.
2. The airway plate for a dry-type transformer according to claim 1, characterized in that: The cross section of the trapezoidal column perpendicular to the length direction is a trapezoidal structure, and the upper base and the lower base of the trapezoidal structure are straight lines.
3. The airway plate for a dry-type transformer according to claim 1, characterized in that: The cross section of the trapezoidal column perpendicular to the length direction is a trapezoidal structure, and the upper base and the lower base of the trapezoidal structure are both arc-shaped.
4. The airway plate for a dry-type transformer according to claim 1, characterized in that: The cross section of the triangular prism perpendicular to the length direction is a triangular structure.
5. The airway plate for a dry-type transformer according to claim 1, characterized in that: A pulling hole is provided on the side surface of one end of the trapezoidal column, and the pulling hole is suitable for being hooked by an external tool to pull out the trapezoidal column.