Amorphous alloy dry-type power transformer

Abstract

The utility model discloses an amorphous alloy dry-type power transformer, which belongs to the technical field of transformers, and comprises a transformer body provided with a base, a coaming and a top plate, the upper surface of the top plate is provided with a mounting groove, and the upper surface of the top plate is hinged with a cover plate used for sealing the mounting groove through a hinge. A draught fan is fixedly arranged on the surface of the cover plate in a penetrating mode, an air inlet matched with the draught fan is formed in the bottom face of the mounting groove, and an intercepting assembly matched with the air inlet is arranged in the mounting groove. The air purifier has the advantages that the intercepting screen plate and the limiting piece are arranged, the intercepting screen plate can effectively block dust, sundries and the like in air and is convenient to assemble, disassemble, clean and replace, and the deflecting plate and the squeezing plate in the limiting piece are matched with the nut through the threaded column, so that the intercepting screen plate is limited up and down and left and right.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an amorphous alloy dry-type power transformer. Background Art

[0002] Dry-type power transformers are widely used in the power system due to their characteristics of safety, reliability, and convenient maintenance. Amorphous alloy materials, because of their low loss and high magnetic permeability characteristics, have become the preferred materials for the cores of dry-type transformers. Most of the dust-proof structures of existing dry-type transformers adopt fixed interception net plates. On the one hand, the net plates are easily blocked by impurities after long-term use, affecting the air intake volume; on the other hand, the traditional installation method has the problems of cumbersome installation and inconvenient disassembly, and workers need to use tools to complete the replacement of the net plates. Content of the Utility Model

[0003] The purpose of the utility model is to provide an amorphous alloy dry-type power transformer to solve the above technical problems.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] An amorphous alloy dry-type power transformer includes a transformer body having a base, a surrounding plate, and a top plate. An installation groove is formed on the upper surface of the top plate. A cover plate for closing the installation groove is hinged on the upper surface of the top plate through a hinge. A fan is fixedly provided through the surface of the cover plate. An air inlet matching with the fan is formed on the bottom surface of the installation groove. An interception component matching with the air inlet is arranged in the installation groove.

[0006] As a further description of the above technical scheme:

[0007] The interception component includes an interception net plate placed inside the installation groove for covering the air inlet and longitudinal stop rods fixedly arranged on the inner wall of the installation groove. A clamping groove is formed on the inner bottom surface of the installation groove. A limiting member for limiting and fixing the interception net plate is arranged on the inner bottom surface of the installation groove.

[0008] As a further description of the above technical scheme:

[0009] The limiting member includes a deflection plate for limiting the interception net plate up and down and a pressing plate for limiting the interception net plate left and right. A threaded column is fixedly arranged on the inner bottom surface of the installation groove. The deflection plate and the pressing plate are respectively rotatably sleeved outside the threaded column. A nut for pressing the deflection plate is threadedly connected to the upper end of the threaded column.

[0010] As a further description of the above technical scheme:

[0011] The fan is of a two-side air inlet type. The number of air inlets is two. The shapes of the deflection plate and the pressing plate are both symmetric structures.

[0012] As a further description of the above technical solution:

[0013] The deflection plate is movably connected to the threaded column. Two constraint rods are symmetrically arranged on both sides of the lower end of the deflection plate respectively. The extrusion plate is rotatably connected to the threaded column through a bearing, and sliding holes matching the constraint rods are formed on the surface of the extrusion plate.

[0014] As a further description of the above technical solution:

[0015] A transverse stop rod matching the cover plate is fixedly arranged on the inner wall of the installation groove. A safety lock is installed on the cover plate, and a lock hole matching the safety lock is formed on the inner wall of the installation groove.

[0016] As a further description of the above technical solution:

[0017] A movable handle is arranged on the outer side of the cover plate. A magnet matching the handle is fixedly embedded at the upper end of the top plate, and four hanging rings are symmetrically arranged at the upper end of the top plate.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0019] In the present utility model, by arranging the cover plate, the fan and the installation groove on the upper surface of the top plate, when the cover plate is closed, the fan can forcibly dissipate heat from the transformer through the air inlet, and the cooling efficiency is high; when the cover plate is opened, the fan is moved out of the installation groove along with the cover plate, and the staff can directly contact the fan, which is convenient for maintenance or replacement, avoiding the problem of inconvenient maintenance of the traditional built-in fan.

[0020] In the present utility model, by arranging the interception net plate and the limiting member, the interception net plate can effectively block dust, sundries, etc. in the air, and is convenient for installation, disassembly, cleaning and replacement. The deflection plate and the extrusion plate in the limiting member are matched with the threaded column and the nut to realize the up-down and left-right limitation of the interception net plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Shows a schematic diagram of the overall structure of the transformer provided by an embodiment of the present utility model;

[0022] Figure 2 Shows a partial structural schematic diagram of the closed state of the cover plate provided by an embodiment of the present utility model;

[0023] Figure 3 Shows a partial structural schematic diagram of the open state of the cover plate provided by an embodiment of the present utility model;

[0024] Figure 4 Shows a partial unfolded structural schematic diagram of the interception component provided by an embodiment of the present utility model;

[0025] Figure 5 The figure shows a partial structural schematic diagram of a limiting member provided according to an embodiment of the present utility model.

[0026] Legend: 1. Base; 2. Enclosure panel; 3. Top plate; 4. Suspension ring; 5. Cover plate; 6. Fan; 7. Safety lock; 8. Handle; 9. Hinge; 10. Intercepting net plate; 11. Air inlet; 12. Card slot; 13. Deflection plate; 14. Transverse stop bar; 15. Longitudinal stop bar; 16. Magnet; 17. Threaded column; 18. Extrusion plate; 19. Constraint rod; 20. Nut. Specific implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0028] As Figures 1-5 shown, a non-crystalline alloy dry-type power transformer includes a transformer body having a base 1, an enclosure panel 2, and a top plate 3. An installation groove is formed on the upper surface of the top plate 3. A cover plate 5 for closing the installation groove is hinged on the upper surface of the top plate 3 through a hinge 9. A fan 6 is fixedly provided through the surface of the cover plate 5. An air inlet 11 matching the fan 6 is formed on the bottom surface of the installation groove. The number of the air inlets 11 is two. The fan 6 is of a two-side air inlet type. When the cover plate 5 is closed, the fan 6 starts to work, achieving the effect of dissipating heat and cooling the transformer. On the other hand, the fan 6 is installed on the cover plate 5. After the cover plate 5 is turned over and opened, the fan 6 will move outside the installation groove, facilitating the maintenance of the fan 6 by the staff. An intercepting component matching the air inlet 11 is provided in the installation groove.

[0029] Further, the intercepting component includes an intercepting net plate 10 placed inside the installation groove for covering the air inlet 11 and a longitudinal stop bar 15 fixedly provided on the inner wall of the installation groove. The intercepting net plate 10 can effectively intercept impurities in the air. When installing the intercepting net plate 10, the staff first places the intercepting net plate 10 in the installation groove, and then pushes the intercepting net plate 10 to slide under the longitudinal stop bar 15, achieving the effect of preliminary installation and positioning of the intercepting net plate 10. At the same time, it is convenient for the staff to disassemble and clean the intercepting net plate 10. A card slot 12 is formed on the bottom surface of the installation groove. When disassembling the intercepting net plate 10, due to the setting of the card slot 12, the fingers of the staff can be placed in the card slot 12 to pinch the intercepting net plate 10, and then the intercepting net plate 10 can be pulled outwards. A limiting member for limiting and fixing the intercepting net plate 10 is provided on the bottom surface of the installation groove, and the intercepting net plate 10 is further fixed through the limiting member.

[0030] Furthermore, the limiting member includes a deflecting plate 13 for limiting the up-and-down deflection of the intercepting net plate 10 and a pressing plate 18 for limiting the left-and-right deflection of the intercepting net plate 10. A threaded post 17 is fixedly provided on the inner bottom surface of the installation groove. The deflecting plate 13 and the pressing plate 18 are respectively rotatably sleeved outside the threaded post 17. A nut 20 for pressing the deflecting plate 13 is threadedly connected to the upper end of the threaded post 17. During use, the staff rotates the deflecting plate 13 and the pressing plate 18, and the pressing plate 18 will abut against the side wall of the intercepting net plate 10, achieving the effect of fixing the intercepting net plate 10 in the left-and-right direction. Then, the nut 20 is tightened. During this process, the nut 20 will press the deflecting plate 13 downward, and further make the deflecting plate 13 press on the intercepting net plate 10, achieving the effect of fixing the intercepting net plate 10 in the up-and-down direction. The deflecting plate 13 is movably connected to the threaded post 17. Two restraint rods 19 are symmetrically provided on both sides of the lower end of the deflecting plate 13. The pressing plate 18 is rotatably connected to the threaded post 17 through a bearing. A sliding hole matching the restraint rod 19 is provided on the surface of the pressing plate 18. Due to the setting of the restraint rod 19, the deflecting plate 13 and the pressing plate 18 will deflect synchronously. When the pressing plate 18 deflects and abuts against the intercepting net plate 10, during the process of tightening the nut 20 at this time, the restraint rod 19 will move downward and then insert into the card slot 12, that is, achieving the effect of restricting the deflection of the pressing plate 18 and the deflecting plate 13, ensuring the stability of the intercepting net plate 10 after installation.

[0031] Furthermore, the shapes of both the deflecting plate 13 and the pressing plate 18 are symmetric structures, so that the pressing plate 18 can fix the two intercepting net plates 10 in the left-and-right direction synchronously, and the deflecting plate 13 can fix the two intercepting net plates 10 in the up-and-down direction simultaneously.

[0032] Furthermore, a transverse stop rod 14 matching the cover plate 5 is fixedly provided on the inner wall of the installation groove. A safety lock 7 is installed on the cover plate 5. A lock hole matching the safety lock 7 is provided on the inner wall of the installation groove. By setting the transverse stop rod 14, the fit degree after the cover plate 5 is closed is ensured. By setting the safety lock 7, the stability after the cover plate 5 is closed is ensured.

[0033] Furthermore, a movable handle 8 is provided on the outside of the cover plate 5. A magnet 16 matching the handle 8 is fixedly embedded at the upper end of the top plate 3. Four lifting rings 4 are symmetrically provided at the upper end of the top plate 3. By setting the handle 8, it is convenient for the staff to operate to open and close the cover plate 5. The magnet 16 is used to adsorb the handle 8. The handle 8 is in a movable state and is affected by the operation of the fan 6, generating vibration noise. By setting the lifting rings 4, it is convenient to lift the transformer body.

[0034] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. An amorphous alloy dry-type power transformer, comprising a transformer body having a base (1), a surrounding plate (2), and a top plate (3), characterized in that, The upper surface of the top plate (3) is provided with an installation groove. The upper surface of the top plate (3) is hinged with a cover plate (5) for closing the installation groove through a hinge (9). The surface of the cover plate (5) is fixedly provided with a fan (6) through it. The bottom surface of the installation groove is provided with an air inlet (11) that matches the fan (6). An interception assembly that matches the air inlet (11) is arranged in the installation groove.

2. The amorphous alloy dry-type power transformer according to claim 1, characterized in that, The interception assembly includes an interception net plate (10) placed inside the installation groove for covering the air inlet (11) and a longitudinal stop rod (15) fixedly arranged on the inner wall of the installation groove. A clamping groove (12) is provided on the inner bottom surface of the installation groove. A limiting member for limiting and fixing the interception net plate (10) is arranged on the inner bottom surface of the installation groove.

3. The amorphous alloy dry-type power transformer according to claim 2, wherein The limiting member includes a deflection plate (13) for limiting the interception net plate (10) up and down and a pressing plate (18) for limiting the interception net plate (10) left and right. A threaded column (17) is fixedly arranged on the inner bottom surface of the installation groove. The deflection plate (13) and the pressing plate (18) are respectively rotatably sleeved on the outer side of the threaded column (17). The upper end of the threaded column (17) is threadedly connected with a nut (20) for pressing the deflection plate (13).

4. An amorphous alloy dry-type power transformer according to claim 3, characterized in that, The fan (6) is of the two-side air inlet type. The number of the air inlets (11) is two. The shapes of the deflection plate (13) and the pressing plate (18) are both symmetric structures.

5. An amorphous alloy dry-type power transformer according to claim 3, characterized in that, The deflection plate (13) is movably connected with the threaded column (17). Two constraint rods (19) are symmetrically arranged on both sides of the lower end of the deflection plate (13). The pressing plate (18) is rotatably connected with the threaded column (17) through a bearing. A sliding hole that matches the constraint rod (19) is provided on the surface of the pressing plate (18).

6. The amorphous alloy dry-type power transformer according to claim 1, characterized in that, The inner wall of the installation groove is fixedly provided with a transverse stop rod (14) that matches the cover plate (5). A safety lock (7) is installed on the cover plate (5). A lock hole that matches the safety lock (7) is provided on the inner wall of the installation groove.

7. An amorphous alloy dry-type power transformer according to claim 1, characterized in that, A movable handle (8) is arranged on the outer side of the cover plate (5). A magnet (16) that matches the handle (8) is fixedly embedded at the upper end of the top plate (3). Four hanging rings (4) are symmetrically arranged at the upper end of the top plate (3).

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