A layer winding solid core transformer

Abstract

The utility model relates to a kind of layer winding solid volume iron core transformer, including transformer, several heat dissipation structures and mounting structure are provided on the transformer, the mounting structure includes the mounting frame for limiting the mounting position of heat dissipation structure, and mounting frame is fixedly installed on transformer.This layer winding solid volume iron core transformer, through control lever rotation can realize the quick installation and disassembly of heat dissipation structure, solve traditional welding replacement difficulty, bolt connection cumbersome Problem, and the mechanical locking structure of positioning member and limiting piece ensures that heat dissipation structure is installed firmly, avoid running loose, and mounting frame limits heat dissipation structure position, ensure installation accuracy, through bevel fitting design makes the compact force of positioning member to radiating fin more uniform, and increase the contact area of fin and heat conducting plate, ensure the efficient conduction of heat from heat conducting plate to radiating fin, and symmetrical bevel cooperation, with centering effect, automatically correct radiating fin position when installing.

Description

Technical Field

[0001] This utility model relates to the technical field of layered winding three-dimensional wound core transformers, specifically a layered winding three-dimensional wound core transformer. Background Technology

[0002] A layered winding three-dimensional wound core transformer is a type of power transformer that combines layered winding structure and three-dimensional wound core technology. It consists of a three-dimensional wound core, layered windings, a casing, and a heat dissipation structure. The three-dimensional wound core is composed of three geometrically identical wound core frames arranged in a triangular three-dimensional configuration. The layered windings typically consist of multiple winding layers with good insulation between them. The heat dissipation structure mostly uses multiple sets of heat dissipation fins. Like ordinary transformers, layered winding three-dimensional wound core transformers operate based on the principle of electromagnetic induction.

[0003] In the current technology, the outer shell of the layered winding three-dimensional wound core transformer is made of high-quality cold-rolled steel plate or aluminum alloy, and the heat dissipation fins are made of aluminum or copper and are evenly distributed around the transformer shell. In the high salt spray environment of coastal areas, the corrosion of aluminum fins will be accelerated. Moreover, dust, oil and other debris in the transformer operating environment will gradually accumulate in the gaps between the fins, which will hinder air convection and affect the heat dissipation effect. Therefore, the heat dissipation fins need to be replaced or disassembled and cleaned regularly.

[0004] In practical use, the connection methods of transformer shell and heat sink fins are mostly welding or bolting. Welding is not only a strong connection and has good thermal conductivity, but it is more difficult to repair and replace heat sink fins. Bolting requires workers to use tools to replace heat sink fins. Although it is easier to replace heat sink fins than welding, the replacement process is more cumbersome, and the thermal conductivity of the connection part will be affected, thus affecting the heat dissipation effect of the heat sink fins. Therefore, a layered winding three-dimensional wound core transformer is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a layered winding three-dimensional wound core transformer, which has the advantages of easy disassembly and assembly and guaranteed heat conduction effect. It solves the problem that the connection methods of transformer shell and heat sink fins are mostly welding or bolt connection. Welding connection is not only firm and has good heat conduction performance, but it is more difficult to repair and replace heat sink fins. Bolted connection requires workers to use tools to replace heat sink fins. Although it is easier to replace heat sink fins than welding, the replacement process is more cumbersome, and the heat conduction of the connection part will be affected, thus affecting the heat dissipation effect of the heat sink fins.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a layered winding three-dimensional wound core transformer, including a transformer, wherein the transformer is provided with a plurality of heat dissipation structures and mounting structures;

[0007] The installation structure includes an installation frame for limiting the installation position of the heat dissipation structure, and the installation frame is fixedly installed on the transformer. The installation frame is provided with two positioning parts that are symmetrically distributed for fixing the heat dissipation structure, and the installation frame is provided with a limiting part for clamping the two positioning parts.

[0008] The mounting frame includes a frame with two symmetrically distributed rectangular slots, and a control rod for controlling the movement of the limiting component is rotatably mounted on the frame.

[0009] The positioning component includes a pin, which is rotatably mounted on the frame. A T-shaped plate is fixedly mounted on the pin, and one end of the T-shaped plate passes through a rectangular groove and extends into the interior of the frame. The T-shaped plate has a sloping surface on the side near the heat dissipation structure.

[0010] The limiting component includes a connecting plate, which is threadedly connected to the outer surface of the control rod. Both ends of the connecting plate are fixedly installed with protrusions that penetrate into the frame and abut against the T-shaped plate.

[0011] Furthermore, the heat dissipation structure includes a heat-conducting plate that is in close contact with the outer surface of the transformer, and one side of the T-shaped plate is pressed against the heat-conducting plate. Several heat dissipation fins for heat dissipation are fixedly installed on the heat-conducting plate.

[0012] Furthermore, the heat dissipation fins are provided with inclined feet at both ends near the heat conduction plate, and the slope of the inclined feet is in complete contact with the inclined surface.

[0013] Furthermore, the heat-conducting plate has several airflow holes, and the frame has several flow guide grooves, with the flow guide grooves and airflow holes used for airflow.

[0014] Furthermore, two symmetrically distributed guide rods are fixedly installed on the frame, and one end of each guide rod passes through the connecting plate, with the connecting plate and the guide rods slidably connected.

[0015] Furthermore, an anti-detachment block is fixedly installed at the end of the control rod, and the side of the anti-detachment block near the frame contacts the connecting plate.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. This layered winding three-dimensional wound core transformer allows for quick installation and disassembly of the heat dissipation structure by rotating the control rod, solving the problems of difficult welding and replacement and cumbersome bolt connections in traditional methods. Furthermore, the mechanical locking structure of the positioning and limiting components ensures that the heat dissipation structure is firmly installed and prevents loosening during operation. The mounting frame restricts the position of the heat dissipation structure and ensures installation accuracy.

[0018] 2. This layered winding three-dimensional wound core transformer uses a sloping surface fitting design to make the clamping force of the positioning parts on the heat dissipation fins more uniform, avoiding excessive local stress that could cause fin deformation. It also increases the contact area between the fins and the heat-conducting plate, reduces thermal resistance, and ensures efficient heat conduction from the heat-conducting plate to the heat dissipation fins. Furthermore, the symmetrical sloping surface fit has a centering effect, automatically correcting the position of the heat dissipation fins during installation, thus improving installation convenience.

[0019] 3. This layered winding three-dimensional wound core transformer forms a through airflow channel through airflow holes and guide grooves, which accelerates air convection between heat dissipation fins, removes more heat, solves the problem of ventilation obstruction caused by dirt accumulation in the gaps between traditional fins, further enhances airflow circulation, improves heat dissipation efficiency, and reduces the risk of transformer overheating. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is an enlarged view of the heat dissipation structure and installation structure of this utility model;

[0022] Figure 3 This is an exploded view of the heat dissipation structure and the installation structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the present utility model. Figure 3 Rear view.

[0024] In the diagram: 1. Transformer; 2. Heat dissipation structure; 21. Heat conduction plate; 22. Heat dissipation fins; 23. Angled foot; 24. Airflow hole; 3. Mounting structure; 31. Mounting frame; 311. Frame; 312. Rectangular groove; 313. Control rod; 314. Guide rod; 315. Flow guide groove; 32. Positioning component; 321. Pin; 322. T-shaped plate; 323. Angled surface; 33. Limiting component; 331. Connecting plate; 332. Protrusion. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figure 1-4 This embodiment of a layered winding three-dimensional wound core transformer includes a transformer 1, on which a plurality of heat dissipation structures 2 and mounting structures 3 are provided.

[0027] Example 2: Please refer to Figure 1-4 Based on Embodiment 1, the installation structure 3 includes an installation frame 31 for limiting the installation position of the heat dissipation structure 2, and the installation frame 31 is fixedly installed on the transformer 1. The installation frame 31 is provided with two positioning members 32 that are symmetrically distributed for fixing the heat dissipation structure 2. The installation frame 31 is provided with a limiting member 33 for clamping the two positioning members 32. The mechanical locking structure between the positioning member 32 and the limiting member 33 ensures that the heat dissipation structure 2 is firmly installed and avoids loosening during operation. The installation frame 31 limits the position of the heat dissipation structure 2 and ensures the installation accuracy.

[0028] The mounting frame 31 includes a frame 311, on which two symmetrically distributed rectangular slots 312 are provided, and a control rod 313 for controlling the movement of the limiting member 33 is rotatably mounted on the frame 311.

[0029] The positioning component 32 includes a pin 321, which is rotatably mounted on the frame 311. A T-shaped plate 322 is fixedly mounted on the pin 321, and one end of the T-shaped plate 322 passes through the rectangular groove 312 and extends into the interior of the frame 311. A slope 323 is provided on the side of the T-shaped plate 322 near the heat dissipation structure 2.

[0030] The limiting component 33 includes a connecting plate 331, and the connecting plate 331 is threadedly connected to the outer surface of the control rod 313. Both ends of the connecting plate 331 are fixedly installed with protrusions 332 that penetrate into the frame 311, and the protrusions 332 abut against the T-shaped plate 322. The control rod 313 can be rotated to realize the quick installation and disassembly of the heat dissipation structure 2, solving the problems of difficult traditional welding replacement and cumbersome bolt connection.

[0031] Two symmetrically distributed guide rods 314 are fixedly installed on the frame 311, and one end of the guide rod 314 passes through the connecting plate 331. The connecting plate 331 is slidably connected to the guide rod 314. The guide rod 314 restricts the movement direction of the connecting plate 331 to prevent it from rotating with the control rod 313, and ensures that the limiting member 33 stably pushes the positioning member 32.

[0032] In addition, an anti-detachment block is fixedly installed at the end of the control rod 313, and the side of the anti-detachment block near the frame 311 contacts the connecting plate 331. The anti-detachment block prevents the control rod 313 from rotating excessively, causing the connecting plate 331 to fall off the thread, thus ensuring the safety of the installation structure 3.

[0033] Using the above technical solution, the control rod 313 on the rotating mounting frame 31 is threadedly connected to the connecting plate 331, and the connecting plate 331 is limited by the guide rod 314. When the control rod 313 rotates, it drives the connecting plate 331 to move away from the frame 311. The protrusions 332 at both ends of the connecting plate 331 move with the connecting plate 331. The protrusions 332 at both ends of the connecting plate 331 move with the connecting plate 331 and squeeze the end of the T-shaped plate 322, forcing the T-shaped plate 322 to rotate around the pin 321. One side of the rotating T-shaped plate 322 passes through the rectangular groove 312 and presses against the heat-conducting plate 21. The inclined surface 323 on the T-shaped plate 322 is attached to the inclined foot 23 of the heat dissipation fin 22 and generates longitudinal pressure. The rectangular groove 312 of the frame 311 restricts the lateral displacement of the T-shaped plate 322, thereby firmly pressing the heat-conducting plate 21 onto the transformer 1, realizing the fixed installation of the heat dissipation structure 2.

[0034] Example 3: Please refer to Figure 1-4 Based on Embodiment 2, the heat dissipation structure 2 includes a heat-conducting plate 21 that is in close contact with the outer surface of the transformer 1. The heat-conducting plate 21 is in close contact with the transformer 1, increasing the heat conduction area and improving the heat transfer efficiency from the transformer 1 to the heat dissipation fins. One side of the T-shaped plate 322 is pressed onto the heat-conducting plate 21. Several heat dissipation fins 22 for heat dissipation are fixedly installed on the heat-conducting plate 21. The heat dissipation fins 22 disperse heat and dissipate heat quickly through air convection, thereby enhancing the overall heat dissipation effect.

[0035] The heat dissipation fins 22 are provided with inclined feet 23 at both ends near the heat conduction plate 21, and the slope of the inclined feet 23 is in complete contact with the inclined surface 323. The fitting design of the inclined surface 323 makes the pressing force of the positioning member 32 on the heat dissipation fins 22 more uniform, maximizes the contact area, reduces thermal resistance, and ensures efficient heat conduction from the heat conduction plate 21 to the heat dissipation fins 22.

[0036] In addition, the heat-conducting plate 21 has several airflow holes 24 and the frame 311 has several guide grooves 315. The guide grooves 315 and the airflow holes 24 are used for airflow. The airflow holes 24 and the guide grooves 315 form a through airflow channel, which accelerates the air convection between the heat dissipation fins 22, removes more heat, and solves the problem of ventilation obstruction caused by dirt accumulation in the gaps between traditional fins.

[0037] Using the above technical solution, the heat-conducting plate 21 is in close contact with the transformer 1, increasing the heat conduction area. The heat dissipation fins 22 are further used to disperse heat, and heat is quickly dissipated through air convection. In addition, the angled foot 23 design increases the contact area between the heat dissipation fins 22 and the heat-conducting plate 21, reduces thermal resistance, and ensures efficient heat conduction from the heat-conducting plate 21 to the heat dissipation fins 22. The airflow hole 24 and the guide groove 315 form a through airflow channel, which enhances airflow circulation, improves heat dissipation efficiency, and reduces the risk of overheating of the transformer 1.

[0038] The working principle of the above embodiments is as follows:

[0039] When installing the heat dissipation structure 2, the heat dissipation structure 2 is pushed into the frame 311 of the mounting frame 31. The heat conduction plate 21 of the heat dissipation structure 2 is attached to the preset installation position of the transformer shell 1 to ensure that the heat conduction plate 21 is in close contact with the surface of the shell.

[0040] When the control rod 313 on the rotating mounting frame 31 is rotated, since the control rod 313 is threadedly connected to the connecting plate 331 and the connecting plate 331 is limited by the guide rod 314, the control rod 313 rotates and drives the connecting plate 331 to move away from the frame 311. The protrusions 332 at both ends of the connecting plate 331 move with the connecting plate 331.

[0041] The moving protrusion 332 presses against the end of the T-shaped plate 322, forcing the T-shaped plate 322 to rotate around the pin 321. The rotating T-shaped plate 322 passes through the rectangular groove 312 on one side and is pressed against the heat-conducting plate 21. The inclined surface 323 on the T-shaped plate 322 is in contact with the inclined foot 23 of the heat dissipation fin 22 and generates longitudinal pressure. The rectangular groove 312 of the frame 311 restricts the lateral displacement of the T-shaped plate 322, thereby firmly pressing the heat-conducting plate 21 onto the transformer 1 and realizing the fixed installation of the heat dissipation structure 2.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A layered winding three-dimensional wound core transformer, comprising a transformer (1), characterized in that: The transformer (1) is provided with several heat dissipation structures (2) and mounting structures (3); The mounting structure (3) includes a mounting frame (31) for limiting the installation position of the heat dissipation structure (2), and the mounting frame (31) is fixedly mounted on the transformer (1). The mounting frame (31) is provided with two positioning members (32) for fixing the heat dissipation structure (2) and symmetrically distributed. The mounting frame (31) is provided with a limiting member (33) for clamping the two positioning members (32). The mounting frame (31) includes a frame (311), on which two symmetrically distributed rectangular slots (312) are provided, and a control rod (313) for controlling the movement of the limiting member (33) is rotatably mounted on the frame (311). The positioning component (32) includes a pin (321), which is rotatably mounted on the frame (311). A T-shaped plate (322) is fixedly mounted on the pin (321), and one end of the T-shaped plate (322) passes through the rectangular groove (312) and extends into the interior of the frame (311). The T-shaped plate (322) has a slope (323) on the side near the heat dissipation structure (2). The limiting member (33) includes a connecting plate (331), and the connecting plate (331) is threadedly connected to the outer surface of the control rod (313). Both ends of the connecting plate (331) are fixedly installed with protrusions (332) that penetrate into the frame (311), and the protrusions (332) abut against the T-shaped plate (322).

2. The layered winding three-dimensional wound core transformer according to claim 1, characterized in that: The heat dissipation structure (2) includes a heat-conducting plate (21) that is in close contact with the outer surface of the transformer (1), and one side of the T-shaped plate (322) is pressed onto the heat-conducting plate (21). Several heat dissipation fins (22) for heat dissipation are fixedly installed on the heat-conducting plate (21).

3. A layered winding three-dimensional wound core transformer according to claim 2, characterized in that: The heat dissipation fins (22) are provided with inclined feet (23) at both ends near the heat conduction plate (21), and the slope of the inclined feet (23) is in complete contact with the inclined surface (323).

4. A layered winding three-dimensional wound core transformer according to claim 2, characterized in that: The heat-conducting plate (21) has a plurality of airflow holes (24), and the frame (311) has a plurality of guide grooves (315), and the guide grooves (315) and airflow holes (24) are used for airflow.

5. A layered winding three-dimensional wound core transformer according to claim 1, characterized in that: Two symmetrically distributed guide rods (314) are fixedly installed on the frame (311), and one end of the guide rod (314) passes through the connecting plate (331). The connecting plate (331) and the guide rod (314) are slidably connected.

6. A layered winding three-dimensional wound core transformer according to claim 1, characterized in that: An anti-detachment block is fixedly installed at the end of the control rod (313), and the side of the anti-detachment block near the frame (311) contacts the connecting plate (331).

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