A three-phase dry transformer

Abstract

The utility model discloses a three phase coherent transformer relates to transformer technical field, the utility model discloses a shell is installed with support in the inside of shell, the top fixed mounting of support has the iron core, and the bottom of iron core is provided with heat dissipation subassembly, and the inside of shell is provided with displacement component, and is provided with connecting component between displacement component and heat dissipation subassembly, and the bottom of heat dissipation subassembly is provided with the guide component, and displacement component passes through connecting component and draws heat dissipation subassembly and moves. The utility model discloses through support and heat dissipation subassembly, and support supports guide component and heat dissipation subassembly, and heat dissipation subassembly is supported at the bottom of iron core, when heat dissipation subassembly starts, and heat dissipation subassembly inhales cool air from the bottom of shell and blows cool air to the iron core in the upper, and the iron core is heat dissipated, prevents the situation that the iron core overheating leads to the damage of insulating material and causes the failure.

Description

Technical Field

[0001] This utility model belongs to the field of transformer technology, and specifically relates to a three-phase dry-type transformer. Background Technology

[0002] Three-phase dry-type transformers, as core electrical equipment in power systems for voltage transformation, power transmission and distribution, have been widely used in industrial plants, high-rise buildings, new energy power plants, data centers and other scenarios with high safety requirements due to their fire and explosion protection advantages brought by oil-free design, convenient installation and maintenance and environmental adaptability.

[0003] Under the influence of an alternating magnetic field, the core of a three-phase dry-type transformer experiences energy loss, which is released as heat. If the core generates a large amount of heat and heat dissipation is inadequate, the core temperature will continue to rise, causing the temperature of the insulation layers of adjacent coils to rise synchronously through heat conduction. When the temperature exceeds the tolerance limit of the insulation material, it will accelerate the aging and deterioration of the insulation material, shorten its service life, and in severe cases, even cause insulation layer breakdown, leading to coil short-circuit faults and directly causing the transformer to shut down. Utility Model Content

[0004] To address the problem that high heat generation and inadequate heat dissipation in the iron core lead to a continuous rise in core temperature, which in turn causes a synchronous increase in the temperature of adjacent coil insulation layers through heat conduction. When the temperature exceeds the insulation material's tolerance limit, it accelerates the aging and deterioration of the insulation material, shortens its service life, and in severe cases, can even cause insulation layer breakdown, triggering coil short-circuit faults and directly leading to transformer shutdown, this utility model proposes a three-phase dry-type transformer to overcome the aforementioned technical problems existing in related technologies.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a three-phase dry-type transformer, including a housing, a bracket installed inside the housing, an iron core fixedly installed on the top of the bracket, a heat dissipation component provided at the bottom of the iron core, a displacement component provided inside the housing, a connecting component provided between the displacement component and the heat dissipation component, a guide component provided at the bottom of the heat dissipation component, and the displacement component moves the heat dissipation component by pulling it through the connecting component.

[0007] Furthermore, the heat dissipation assembly includes a mounting base, the outer surface of which is provided with a first groove and a second groove, a heat dissipation fan is fixedly installed inside the first groove, the connecting assembly is located inside the second groove, and the mounting base slides between the iron core and the guide assembly.

[0008] Furthermore, the displacement component includes a slide rail, which is fixedly connected inside the housing. A screw is rotatably connected inside the slide rail, and a sliding seat is threadedly connected to the outer surface of the screw. The sliding seat is slidably connected to the slide rail.

[0009] Furthermore, the connecting assembly includes a connecting plate, which is rotatably connected inside the second groove. A connecting post is fixedly connected to the bottom of the connecting plate, and a connecting seat is rotatably connected to the outer surface of the connecting post. The connecting seat is fixedly connected to the top of the sliding seat.

[0010] Furthermore, the guide assembly includes a guide seat, which is fixedly connected to the top of the bracket. A groove is formed on the outer surface of the guide seat, and a sliding rod is slidably connected inside the groove. The upper end of the sliding rod is fixedly connected to the mounting base.

[0011] Furthermore, air inlet slots are provided on the outer surfaces of the housing, bracket, guide seat, and mounting base, and a mesh is fixedly connected to the top of the housing.

[0012] Furthermore, one end of the screw extends to the outer surface of the slide rail, and a handwheel is fixedly connected to the end of the screw.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model uses a bracket and a heat dissipation component. The bracket supports the guide component and the heat dissipation component, and supports the heat dissipation component at the bottom of the iron core. When the heat dissipation component is activated, it draws in cold air from the bottom of the housing and blows the cold air to the iron core above to dissipate heat from the iron core and prevent the iron core from overheating and causing damage to the insulation material, thus preventing malfunctions.

[0015] 2. This utility model connects the sliding seat and the connecting seat. When the rotating screw drives the sliding seat to move, the sliding seat drives the connecting seat to move. The connecting seat drives the connecting plate and the mounting seat to move, so that the mounting seat moves out from under the iron core. The iron core no longer obstructs the mounting seat and the cooling fan. At this time, the cooling fan inside the mounting seat is located near the door of the housing, which is convenient for the cooling fan to be inspected and maintained.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the external outline structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the internal structure of the shell of this utility model. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the displacement component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the heat dissipation component structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the guide seat structure of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Housing; 2. Bracket; 3. Iron core; 4. Heat dissipation assembly; 401. Mounting base; 402. First groove; 403. Second groove; 404. Cooling fan; 5. Displacement assembly; 501. Slide rail; 502. Screw; 503. Sliding seat; 6. Connecting assembly; 601. Connecting plate; 602. Connecting column; 603. Connecting seat; 7. Guide assembly; 701. Guide seat; 702. Slide groove; 703. Sliding rod; 8. Air inlet slot; 9. Partition mesh; 10. Handwheel. Detailed Implementation

[0026] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0028] Please see Figures 1-6As shown, this utility model is a three-phase dry-type transformer, including a housing 1, a support 2 installed inside the housing 1, an iron core 3 fixedly installed on the top of the support 2, a heat dissipation component 4 provided at the bottom of the iron core 3, a displacement component 5 provided inside the housing 1, a connecting component 6 provided between the displacement component 5 and the heat dissipation component 4, a guide component 7 provided at the bottom of the heat dissipation component 4, and the displacement component 5 pulls the heat dissipation component 4 to move through the connecting component 6.

[0029] The heat dissipation component 4 is activated. The heat dissipation component 4 draws in cold air from the bottom of the housing 1 to dissipate heat from the iron core 3. The drive displacement component 5 drives the connecting component 6 to move. The connecting component 6 drives the heat dissipation component 4 to rotate and move along the guide component 7, so that the heat dissipation component 4 moves out from under the iron core 3, avoiding the iron core 3 from obstructing the heat dissipation component 4 and facilitating the maintenance of the heat dissipation component 4.

[0030] This utility model uses a bracket 2 and a heat dissipation component 4. The bracket 2 supports the guide component 7 and the heat dissipation component 4, and supports the heat dissipation component 4 at the bottom of the iron core 3. When the heat dissipation component 4 is activated, it draws in cold air from the bottom of the housing 1 and blows the cold air upwards to the iron core 3 to dissipate heat from the iron core 3, preventing the iron core 3 from overheating and causing damage to the insulation material and resulting in failure.

[0031] In one embodiment, the heat dissipation component 4 includes a mounting base 401. The outer surface of the mounting base 401 is provided with a first groove 402 and a second groove 403. A cooling fan 404 is fixedly installed inside the first groove 402. The connecting component 6 is located inside the second groove 403. The mounting base 401 slides between the iron core 3 and the guide component 7.

[0032] After removing the mounting base 401 from under the iron core 3, the cooling fan 404 inside the mounting base 401 is exposed. At this time, the cooling fan 404 can be inspected. After the inspection is completed, the mounting base 401 is pushed back under the iron core 3, and the cooling fan 404 is turned on. The cooling fan 404 draws in cold air from the bottom of the housing 1 and blows it onto the iron core 3 above to dissipate heat.

[0033] In one embodiment, the displacement component 5 includes a slide rail 501, which is fixedly connected to the inside of the housing 1. A screw 502 is rotatably connected inside the slide rail 501, and a sliding seat 503 is threadedly connected to the outer surface of the screw 502. The sliding seat 503 is slidably connected to the slide rail 501.

[0034] In one embodiment, the connecting component 6 includes a connecting plate 601, which is rotatably connected inside the second groove 403. A connecting post 602 is fixedly connected to the bottom of the connecting plate 601, and a connecting seat 603 is rotatably connected to the outer surface of the connecting post 602. The connecting seat 603 is fixedly connected to the top of the sliding seat 503.

[0035] When the screw 502 is rotated, the rotational tendency of the sliding seat 503 on the outer surface of the screw 502 is blocked by the slide rail 501. At this time, the screw 502 can drive the sliding seat 503 to move along the slide rail 501. When the sliding seat 503 moves away from the iron core 3, the sliding seat 503 drives the connecting plate 601 to move through the connecting seat 603 and the connecting column 602. The connecting plate 601 pulls the mounting seat 401 to move, so that the mounting seat 401 moves out from under the iron core 3.

[0036] In one embodiment, the guide assembly 7 includes a guide seat 701, which is fixedly connected to the top of the bracket 2. The outer surface of the guide seat 701 is provided with a groove 702, and a sliding rod 703 is slidably connected inside the groove 702. The upper end of the sliding rod 703 is fixedly connected to the mounting base 401.

[0037] When the connecting plate 601 pulls the mounting base 401, the mounting base 401 rotates through the sliding rod 703. At the same time, the mounting base 401 drives the sliding rod 703 to slide inside the slide groove 702. The guide seat 701 can limit the movement distance of the sliding rod 703 and the mounting base 401 to prevent the sliding rod 703 from coming out of the slide groove 702. At the same time, the guide seat 701 provides support for the mounting base 401.

[0038] In one embodiment, for the housing 1, the outer surfaces of the housing 1, the bracket 2, the guide seat 701 and the mounting seat 401 are all provided with air inlet grooves 8, and the top of the housing 1 is fixedly connected with a mesh 9.

[0039] After the cooling fan 404 is started, it draws in cold air from the outside through the air inlet slot 8 into the interior of the housing 1 and cools the iron core 3. At the same time, the hot air inside the housing 1 is discharged through the mesh 9.

[0040] In one embodiment, for the screw 502, one end of the screw 502 extends to the outer surface of the slide rail 501, and a handwheel 10 is fixedly connected to the end of the screw 502.

[0041] Pushing the handwheel 10 will cause the screw 502 to rotate. The handwheel 10 is designed to provide a point of force for rotating the screw 502, making it convenient to use.

[0042] In summary, with the help of the above-mentioned technical solution of this utility model, by pushing the handwheel 10, the handwheel 10 drives the screw 502 to rotate. The rotational tendency of the sliding seat 503 on the outer surface of the screw 502 is blocked by the slide rail 501. At this time, the screw 502 can drive the sliding seat 503 to move along the slide rail 501. When the sliding seat 503 moves away from the iron core 3, the sliding seat 503 drives the connecting plate 601 to move through the connecting seat 603 and the connecting column 602. The connecting plate 601 pulls the mounting seat 401 to move. The mounting seat 401 moves through... The sliding rod 703 rotates, and at the same time, the mounting base 401 drives the sliding rod 703 to slide inside the sliding groove 702, so that the mounting base 401 moves out from under the iron core 3. At this time, the cooling fan 404 inside the mounting base 401 can be inspected and maintained. After maintenance, the mounting base 401 is moved back to under the iron core 3 and the cooling fan 404 is started. After the cooling fan 404 is started, the outside cold air is drawn into the inside of the housing 1 from the air inlet groove 8 and the iron core 3 is cooled. At the same time, the hot air inside the housing 1 is discharged from the partition 9.

[0043] Through the above technical solution, 1. The bracket 2 supports the guide component 7 and the heat dissipation component 4, and supports the heat dissipation component 4 at the bottom of the iron core 3. When the heat dissipation component 4 is activated, it draws in cold air from the bottom of the housing 1 and blows the cold air upwards to the iron core 3 to dissipate heat from the iron core 3, preventing the iron core 3 from overheating and causing damage to the insulation material and resulting in failure; 2. Through the connection of the sliding seat 503 and the connecting seat 603, when the rotating screw 502 drives the sliding seat 503 to move, the sliding seat 503 drives the connecting seat 603 to move, and the connecting seat 603 drives the connecting plate 601 and the mounting seat 401 to move, so that the mounting seat 401 moves out from under the iron core 3, and the iron core 3 no longer obstructs the mounting seat 401 and the cooling fan 404. At this time, the cooling fan 404 inside the mounting seat 401 is located near the door of the housing 1, which facilitates the inspection and maintenance of the cooling fan 404.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A three-phase dry-type transformer, comprising a housing (1), characterized in that, A bracket (2) is installed inside the housing (1). An iron core (3) is fixedly installed on the top of the bracket (2). A heat dissipation component (4) is provided at the bottom of the iron core (3). A displacement component (5) is provided inside the housing (1). A connecting component (6) is provided between the displacement component (5) and the heat dissipation component (4). A guide component (7) is provided at the bottom of the heat dissipation component (4). The displacement component (5) moves the heat dissipation component (4) by pulling it through the connecting component (6).

2. A three-phase dry-type transformer according to claim 1, characterized in that, The heat dissipation assembly (4) includes a mounting base (401). The outer surface of the mounting base (401) is provided with a first groove (402) and a second groove (403). A cooling fan (404) is fixedly installed inside the first groove (402). The connecting assembly (6) is located inside the second groove (403). The mounting base (401) slides between the iron core (3) and the guide assembly (7).

3. A three-phase dry-type transformer according to claim 2, characterized in that, The displacement component (5) includes a slide rail (501), which is fixedly connected inside the housing (1). A screw (502) is rotatably connected inside the slide rail (501), and a sliding seat (503) is threadedly connected to the outer surface of the screw (502). The sliding seat (503) is slidably connected to the slide rail (501).

4. A three-phase dry-type transformer according to claim 3, characterized in that, The connecting assembly (6) includes a connecting plate (601), which is rotatably connected inside the second groove (403). A connecting post (602) is fixedly connected to the bottom of the connecting plate (601), and a connecting seat (603) is rotatably connected to the outer surface of the connecting post (602). The connecting seat (603) is fixedly connected to the top of the sliding seat (503).

5. A three-phase dry-type transformer according to claim 4, characterized in that, The guide assembly (7) includes a guide seat (701), which is fixedly connected to the top of the bracket (2). A groove (702) is provided on the outer surface of the guide seat (701), and a sliding rod (703) is slidably connected inside the groove (702). The upper end of the sliding rod (703) is fixedly connected to the mounting base (401).

6. A three-phase dry-type transformer according to claim 5, characterized in that, The outer surfaces of the housing (1), bracket (2), guide seat (701) and mounting seat (401) are all provided with air inlet grooves (8), and a mesh (9) is fixedly connected to the top of the housing (1).

7. A three-phase dry-type transformer according to claim 6, characterized in that, One end of the screw (502) extends to the outer surface of the slide rail (501), and a handwheel (10) is fixedly connected to the end of the screw (502).

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