Dry-type transformer

Abstract

The invention relates to a dry-type transformer, and relates to the technical field of transformers, the dry-type transformer comprises a base and a transformer body, the transformer body comprises three iron cores fixedly arranged on the base side by side; a supporting plate is fixedly arranged on the bottom side of the base, a plurality of universal wheels with a braking function are fixedly arranged on the bottom side of the supporting plate, and a traction handle is fixedly arranged on the edge of the upper side of the supporting plate; in the application, when the dry-type transformer needs to move in a short distance, due to the cooperative arrangement of the supporting plate, the universal wheels and the traction handle, a worker can apply force to the traction handle and drag the dry-type transformer, so that the corresponding preparation time is shortened, and the short-distance movement efficiency of the dry-type transformer is improved.

Description

Technical Field

[0001] The present application relates to the technical field of transformers, and in particular to a dry-type transformer. Background Art

[0002] As an efficient voltage conversion device, the dry-type transformer is unique in that the core and coil are not immersed in insulating oil, but ingeniously use high-performance insulating materials such as resin to isolate the current and effectively prevent the generation of arcs. This design not only avoids the complexity of the oil cooling system, but also enables the transformer to achieve efficient heat dissipation through natural air convection or forced air cooling, thereby ensuring the long-term stable operation of the equipment.

[0003] On the technical level, dry-type transformers are usually composed of core components such as brackets, iron cores, and coil windings. Among them, the iron core, as the main body of the magnetic circuit, is mostly carefully stacked with high-quality silicon steel sheets with a silicon content of about 5%. This design aims to minimize hysteresis loss and eddy current loss and improve the energy efficiency of the transformer. The coil winding, as the circuit part of the transformer, is carefully wound with high-strength enameled wire, arranged tightly and evenly to ensure efficient and stable current transmission.

[0004] However, when dry-type transformers are widely used in construction sites, the flexibility of their use location becomes a concern. As construction progresses, the location of the transformer may need to be frequently adjusted to adapt to changing construction needs. But the problem is that moving dry-type transformers is not easy. It requires professional measures and tools to ensure safety. The process is cumbersome and time-consuming. This not only affects the overall efficiency of the construction site, but may also pose a potential threat to the performance and safety of the transformer, and there is room for improvement. Summary of the invention

[0005] The purpose of the present application is to provide a dry-type transformer to solve the problem in the above-mentioned related art that when the dry-type transformer needs to be moved over a short distance, it takes a long time to prepare and has low efficiency.

[0006] The dry-type transformer provided in this application adopts the following technical solution: A dry-type transformer comprises a base and a transformer body, wherein the transformer body comprises three iron cores fixedly arranged side by side on the base; a support plate is fixedly arranged on the bottom side of the base, a plurality of universal wheels with a braking function are fixedly arranged on the bottom side of the support plate, and a traction handle is fixedly arranged on the upper edge of the support plate.

[0007] By adopting the above technical solution, when the dry-type transformer needs to be moved a short distance, due to the coordinated arrangement of the support plate, the universal wheel and the traction handle, the staff can apply force to the traction handle to drag the dry-type transformer, thereby reducing the corresponding preparation time and improving the efficiency of the dry-type transformer when moving a short distance.

[0008] Optionally, two sliding plates are slidably arranged on the bottom side of the support plate, and the two sliding plates are symmetrically arranged on both sides of the traction handle; the two sliding plates can slide in a direction approaching or moving away from each other, and a storage groove is opened on the side of the sliding plate facing the support plate.

[0009] By adopting the above technical solution, due to the matching arrangement of the sliding plate, small tools can be placed inside the storage trough on the sliding plate. When needed, the sliding plate can be slid out to access the tools in the storage trough at any time.

[0010] Optionally, an elastic clamping piece is provided on the side of the sliding plate facing the supporting plate, and a plurality of positioning grooves for inserting the elastic clamping piece are evenly provided on the bottom side of the supporting plate.

[0011] By adopting the above technical solution, when the sliding plate slides to a certain position, due to the matching setting of the elastic clamping piece, the elastic clamping piece on the sliding plate is clamped into the corresponding positioning groove, thereby improving the stability of the sliding plate when it slides out to a certain position.

[0012] Optionally, an adjusting rod is provided above the sliding plate, and a accommodating groove is opened on the sliding plate for the adjusting rod to be rotatably inserted, and the inner edge of the accommodating groove is rotatably connected to one end of the adjusting rod away from the traction handle, and the adjusting rod can be rotated to a vertical state and fixed; a sunscreen curtain is fixedly provided on the side edge of the traction handle away from the support plate, and the side edge of the sunscreen curtain away from the traction handle can be detachably connected to the end of the adjusting rod away from the sliding plate.

[0013] By adopting the above technical solution, when the dry-type transformer is used outdoors and needs sunshade protection, the sliding plate is first slid out from the bottom side of the support plate, and then the adjusting rod is rotated to a vertical state and fixed, and then the other side of the sun-proof curtain is detachably connected to the upper end of the adjusting rod, so that the sun-proof curtain is used to protect the upper side of the dry-type transformer, reduce the impact of sunlight on the dry-type transformer, and extend the service life of the dry-type transformer.

[0014] Optionally, a hook is fixedly provided on the side of the sunscreen curtain away from the traction handle, and a slot for the hook to be inserted is formed at the end of the adjustment rod away from the sliding plate.

[0015] By adopting the above technical solution, when the end of the sunscreen curtain is detachably connected to the upper end of the adjusting rod, due to the matching setting of the hook and the slot, the hook on the sunscreen curtain can be inserted into the slot on the adjusting rod, which is convenient for the installation and disassembly of the protective curtain.

[0016] Optionally, a storage cavity is provided on the side of the traction handle away from the support plate, one side of the sunscreen curtain is fixedly connected to the inner wall of the storage cavity, and a blocking plate for blocking the opening of the storage cavity is provided on the traction handle.

[0017] By adopting the above technical solution, due to the coordinated arrangement of the storage cavity and the blocking plate, when the sunscreen curtain is not needed for shielding, the sunscreen curtain can be stored in the storage cavity and the storage cavity can be blocked by the blocking plate.

[0018] Optionally, the traction handle is provided with a blocking groove at the opening edge of the storage cavity, one side of the blocking plate is hinged to the inner wall of the blocking groove, and the other side of the blocking plate can be rotatably inserted into the blocking groove.

[0019] By adopting the above technical solution, due to the installation arrangement of the blocking plate, it is convenient to control the opening and closing of the storage cavity, and the blocking plate can control the opening and closing of the storage cavity by rotating.

[0020] Optionally, a positioning rod is provided on the side of the sliding plate, and a positioning through hole is opened on the sliding plate for the positioning rod to insert and slide. The adjusting rod is provided with a control component that drives the positioning rod to slide up and down, and the lower end of the positioning rod can abut against the ground.

[0021] By adopting the above technical solution, when the adjusting rod is rotated to a vertical state and fixed, the positioning rod can be driven to slide up and down by the control component during this process, so that the lower end of the positioning rod slides downward to a state of abutting the ground, thereby improving the installation stability of the dry-type transformer in this state.

[0022] Optionally, the control assembly includes a first control rod and a second control rod, the two ends of the first control rod are respectively hinged to the outer peripheral surface of the adjusting rod and one end of the second control rod, and the second control rod is slidably arranged on the upper side surface of the sliding plate; the upper end edge of the positioning rod is provided with a guide inclined surface, and the second control rod can slide along the guide inclined surface to a state of abutting against the upper end of the positioning rod when the adjusting rod is in a vertical state.

[0023] By adopting the above technical solution, due to the matching arrangement of the first control rod and the second control rod, the second control rod can slide along the guiding slope to abut against the upper end of the positioning rod when the adjustment rod is in the vertical state. In this state, the lower end of the positioning rod abuts against the ground.

[0024] Optionally, a limit ring is fixedly provided on the outer periphery of the positioning rod, and a positioning groove for the limit ring to be inserted and slide is opened on the upper edge of the opening of the positioning through hole of the sliding plate, and a return spring is fixedly provided on the lower side of the limit plate, and the other end of the return spring is fixedly connected to the bottom side of the positioning groove.

[0025] By adopting the above technical solution, when the second control rod is misaligned with the upper end of the positioning rod, the second control rod stops squeezing the upper end of the positioning rod. In this state, the positioning rod can be reset and slid upward by the reset spring, which facilitates the short-distance movement of the dry-type transformer.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the dry-type transformer needs to be moved a short distance, due to the coordinated arrangement of the support plate, the universal wheel and the traction handle, the staff can apply force to the traction handle to drag the dry-type transformer, thereby reducing the corresponding preparation time and improving the efficiency of the dry-type transformer when moving a short distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a schematic diagram of the structure of the transformer body in an embodiment of the present application; Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 3 This is a schematic diagram of the structure of the installation distribution of the sliding plate in the embodiment of the present application; Figure 4 It is a partial cross-sectional structural schematic diagram of the sliding plate installation cooperation in the embodiment of the present application; Figure 5 It is a schematic cross-sectional structure diagram of the installation and coordination of the adjustment rod and the protective curtain in the embodiment of the present application; Figure 6 It is a partial cross-sectional structural schematic diagram of the installation and coordination of the protective curtain in the embodiment of the present application; Figure 7 yes Figure 6 A partial enlarged schematic diagram of part A; Figure 8 It is a partial structural schematic diagram of the installation and matching of the first control rod and the second control rod in the embodiment of the present application; Fig. 9It is a partial cross-sectional structural schematic diagram of the installation and cooperation of the first control rod and the second control rod in an embodiment of the present application.

[0029] In the figure, 1, base; 2, transformer body; 21, iron core; 3, support plate; 31, universal wheel; 32, traction handle; 321, storage cavity; 322, blocking sink; 33, blocking plate; 34, positioning groove; 35, limit plate; 351, limit slide; 4, sliding plate; 41, placement groove; 42, elastic clamping part; 421, compression spring; 422, arc-shaped protrusion; 43, accommodating sink; 44, positioning through hole; 45, positioning sink; 46, storage sink; 5, adjustment rod; 51, card slot; 6, sunscreen curtain; 61, hook; 7, positioning rod; 71, guide slope; 72, limit retaining ring; 73, reset spring; 8, control assembly; 81, first control rod; 82, second control rod. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0031] Example: Reference Figure 1 and Figure 2 A dry-type transformer comprises a base 1 and a transformer body 2, wherein the transformer body 2 comprises three iron cores 21 fixed side by side on the base 1 and corresponding windings (not shown in the figure); a support plate 3 is fixedly arranged on the bottom side of the base 1 by screws, four universal wheels 31 with braking function are fixedly arranged at the four corners of the bottom side of the support plate 3, and a traction handle 32 is fixedly arranged on the upper edge of the support plate 3; wherein the universal wheel 31 is a conventional mobile structure, and the specific components are not repeated here.

[0032] Reference Figure 2 and Figure 3 Two sliding plates 4 are slidably arranged on the bottom side of the support plate 3, and a limiting plate 35 is symmetrically fixed on the bottom side of the support plate 3. The side surfaces of the two limiting plates 35 close to each other are provided with limiting grooves 351 for the sliding plates 4 to be inserted and slide; When the two sliding plates 4 are installed, they are symmetrically arranged on both sides of the traction handle 32; the two sliding plates 4 can slide in the direction of approaching or moving away from each other, and a storage groove 46 for placing sundries or other small tools is opened on the side of the sliding plate 4 facing the support plate 3.

[0033] Reference Figure 3 and Figure 4An elastic clamping member 42 is provided on the side of the sliding plate 4 facing the supporting plate 3, wherein the elastic clamping member 42 includes a compression spring 421 and an arc-shaped protrusion 422, and a placement groove 41 for the compression spring 421 and the arc-shaped protrusion 422 is provided on the sliding plate 4, and the compression spring 421 presses the arc-shaped protrusion 422 so that a part of the arc-shaped protrusion 422 protrudes out of the placement groove 41, and the outer side surface of the protruding part of the arc-shaped protrusion 422 is an arc surface, and the arc length corresponding to the arc surface is a minor arc, and a plurality of positioning grooves 34 for inserting the elastic clamping member 42 are evenly provided on the bottom side of the supporting plate 3 along the length direction of the limiting plate 35, and when the sliding plate 4 slides to a certain position, the protruding part of the arc-shaped protrusion 422 is inserted into the corresponding positioning groove 34.

[0034] Reference Figure 5 An adjusting rod 5 is provided above the sliding plate 4, and an accommodating groove 43 is provided on the sliding plate 4 for the adjusting rod 5 to be rotatably inserted. The inner edge of the accommodating groove 43 away from the traction handle 32 is rotatably connected to one end of the adjusting rod 5 through a hinge shaft, and the adjusting rod 5 can be rotated to a vertical state and fixed by screws; a flexible sunscreen curtain 6 is fixed on the side edge of the traction handle 32 away from the support plate 3, and the side edge of the sunscreen curtain 6 away from the traction handle 32 can be detachably connected to the end of the adjusting rod 5 away from the sliding plate 4.

[0035] Reference Figure 6 and Figure 7 A storage cavity 321 is provided on the side of the traction handle 32 away from the support plate 3, wherein one side of the sunscreen curtain 6 is fixedly connected to the inner wall of the storage cavity 321, and a blocking plate 33 for blocking the opening of the storage cavity 321 is provided on the traction handle 32; a blocking groove 322 is provided on the opening edge of the storage cavity 321 of the traction handle 32, one side of the blocking plate 33 is hinged to the inner wall of the blocking groove 322, and the other side of the blocking plate 33 can be rotated and inserted into the blocking groove 322; Two hooks 61 are fixedly provided on the side of the sun-proof curtain 6 away from the traction handle 32, and a groove 51 for the hook 61 to be inserted into is opened at the end of the adjusting rod 5 away from the sliding plate 4; when the dry-type transformer is used outdoors and needs sunshade protection, the sliding plate 4 is first slid out from the bottom side of the support plate 3, and then the adjusting rod 5 is rotated to a vertical state and fixed, and then the hook 61 on the other end of the sun-proof curtain 6 is inserted into the groove 51 at the upper end of the adjusting rod 5, so that the sun-proof curtain 6 is used to protect the upper side of the dry-type transformer.

[0036] Reference Figure 8 and Fig. 9 A positioning rod 7 is provided on the side of the sliding plate 4, wherein a positioning through hole 44 is opened on the sliding plate 4 for the positioning rod 7 to be inserted and slide. A control component 8 is provided on the adjusting rod 5. When the adjusting rod 5 rotates, the positioning rod 7 can be driven to slide up and down through the control component 8, and the lower end of the positioning rod 7 can slide downward to a state of abutting the ground.

[0037] Reference Fig. 9 The control assembly 8 includes a first control rod 81 and a second control rod 82, wherein both ends of the first control rod 81 are hinged to the outer peripheral surface of the adjustment rod 5 and one end of the second control rod 82, respectively, and the second control rod 82 is slidably arranged on the upper side of the sliding plate 4; A guiding slope 71 is provided on the upper edge of the positioning rod 7. When the adjusting rod 5 is in the vertical state, the second control rod 82 can slide along the guiding slope 71 to abut against the upper end of the positioning rod 7. In this state, the lower end of the positioning rod 7 abuts against the ground.

[0038] Reference Fig. 9 A limit ring 72 is fixedly provided on the outer periphery of the positioning rod 7, wherein the sliding plate 4 is provided with a positioning groove 45 for the limit ring 72 to be inserted and slide at the upper edge of the opening of the positioning through hole 44, and two return springs 73 are fixedly provided on the lower side of the limit baffle, and the other end of the return spring 73 is fixedly connected to the bottom side of the positioning groove 45; when the second control rod 82 is misaligned with the upper end of the positioning rod 7, the return spring 73 can be used to make the positioning rod 7 return to slide upward.

[0039] The implementation principle of the embodiment of the present application is: When the dry-type transformer is used outdoors and needs sunshade protection, the sliding plate 4 is first slid out from the bottom side of the support plate 3, and then the adjusting rod 5 is rotated to a vertical state and fixed, and then the hook 61 on the other side of the sun-proof curtain 6 is inserted into the slot 51 at the upper end of the adjusting rod 5, so that the sun-proof curtain 6 is used to protect the upper side of the dry-type transformer; When the adjusting rod 5 is in the vertical state, the first control rod 81 drives the second control rod 82 to slide, so that the second control rod 82 slides along the guiding inclined surface 71 to abut against the upper end of the positioning rod 7, and the lower end of the positioning rod 7 abuts against the ground, thereby improving the installation stability of the dry-type transformer in this state.

[0040] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dry-type transformer, comprising a base (1) and a transformer body (2), wherein the transformer body (2) comprises three iron cores (21) fixedly arranged side by side on the base (1); characterized in that: A support plate (3) is fixedly arranged on the bottom side of the base (1), a plurality of universal wheels (31) with a braking function are fixedly arranged on the bottom side of the support plate (3), and a traction handle (32) is fixedly arranged on the upper edge of the support plate (3).

2. A dry-type transformer according to claim 1, characterized in that: Two sliding plates (4) are slidably arranged on the bottom side of the support plate (3), and the two sliding plates (4) are symmetrically arranged on both sides of the traction handle (32); the two sliding plates (4) can slide in a direction approaching or moving away from each other, and a storage sink groove (46) is opened on the side of the sliding plate (4) facing the support plate (3).

3. A dry-type transformer according to claim 2, characterized in that: An elastic clamping piece (42) is provided on the side of the sliding plate (4) facing the supporting plate (3), and a plurality of positioning grooves (34) for inserting the elastic clamping piece (42) are evenly provided on the bottom side of the supporting plate (3).

4. A dry-type transformer according to claim 2, characterized in that: An adjusting rod (5) is arranged above the sliding plate (4), and an accommodating groove (43) is provided on the sliding plate (4) for the adjusting rod (5) to be rotatably inserted therein, and the accommodating groove (43) is rotatably connected to one end of the adjusting rod (5) at an inner edge away from the traction handle (32), and the adjusting rod (5) can be rotated to a vertical state and fixed; A sunscreen curtain (6) is fixedly provided on the side edge of the traction handle (32) away from the support plate (3), and the side edge of the sunscreen curtain (6) away from the traction handle (32) can be detachably connected to the end of the adjustment rod (5) away from the sliding plate (4).

5. A dry-type transformer according to claim 4, characterized in that: A hook (61) is fixedly provided on the side of the sunscreen curtain (6) away from the traction handle (32), and a slot (51) for the hook (61) to be inserted is provided at the end of the adjustment rod (5) away from the sliding plate (4).

6. A dry-type transformer according to claim 4, characterized in that: A storage cavity (321) is provided on the side of the traction handle (32) away from the support plate (3), one side of the sunscreen curtain (6) is fixedly connected to the inner wall of the storage cavity (321), and a blocking plate (33) for blocking the opening of the storage cavity (321) is provided on the traction handle (32).

7. A dry-type transformer according to claim 6, characterized in that: The traction handle (32) is provided with a blocking groove (322) at the opening edge of the storage cavity (321); one side of the blocking plate (33) is hinged to the inner wall of the blocking groove (322); the other side of the blocking plate (33) can be rotated and inserted into the blocking groove (322).

8. A dry-type transformer according to claim 4, characterized in that: A positioning rod (7) is provided on the side of the sliding plate (4), and a positioning through hole (44) is provided on the sliding plate (4) for the positioning rod (7) to be inserted and slide. A control component (8) is provided on the adjusting rod (5) for driving the positioning rod (7) to slide up and down, and the lower end of the positioning rod (7) can abut against the ground.

9. A dry-type transformer according to claim 8, characterized in that: The control assembly (8) comprises a first control rod (81) and a second control rod (82), the two ends of the first control rod (81) being hinged to the outer peripheral surface of the adjustment rod (5) and one end of the second control rod (82) respectively, and the second control rod (82) being slidably arranged on the upper side of the sliding plate (4); The upper end edge of the positioning rod (7) is provided with a guiding inclined surface (71), and the second control rod (82) can slide along the guiding inclined surface (71) to abut against the upper end of the positioning rod (7) when the adjustment rod (5) is in a vertical state.

10. A dry-type transformer according to claim 8, characterized in that: A limit ring (72) is fixedly provided on the outer periphery of the positioning rod (7); a positioning groove (45) for the limit ring (72) to be inserted and slide is provided on the upper edge of the opening of the positioning through hole (44) of the sliding plate (4); a return spring (73) is fixedly provided on the lower side of the limit plate; the other end of the return spring (73) is fixedly connected to the bottom side of the positioning groove (45).

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