Radiating dry-type transformer iron core

Abstract

A heat conduction metal transverse plate is installed in the middle of the top end of a supporting seat in an attached mode, lower iron yokes are placed on the surface of the heat conduction metal transverse plate in an attached mode at equal intervals, iron core silicon steel sheets are installed at the top ends and the middle portions of the tops of the lower iron yokes in an attached mode, and an upper iron yoke is installed between the top ends of the iron core silicon steel sheets in a spliced mode. The two ends of the bottom of the heat-conducting metal transverse plate are symmetrically and fixedly connected with the heat-conducting metal vertical plates, and the corresponding end faces of the bottoms of the two heat-conducting metal vertical plates are equidistantly provided with the heat-dissipating fins, so that heat generated by the iron core can be quickly and downwards guided out, the heat-dissipating area is increased by the heat-dissipating fins, the heat-dissipating progress is accelerated, and the heat-dissipating efficiency is improved. And meanwhile, the heat dissipation fan is used for generating air flow, the air flow is blown to the two heat conduction metal vertical plates through the air flow dividing box and the heat dissipation holes, the auxiliary heat dissipation effect on the heat dissipation fins is achieved, heat can be rapidly blown to the outside through the air flow, the heat is gradually away from the transformer, and the heat dissipation efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of transformer core technology, specifically to a heat-dissipating dry-type transformer core. Background Technology

[0002] Dry-type transformers are transformers whose cores and windings are not immersed in insulating oil. They are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery equipment, and other places. The transformer core is the main magnetic circuit part of the transformer. It is usually made of hot-rolled or cold-rolled silicon steel sheets with high silicon content and coated with insulating varnish. The core and the coils wound on it form a complete electromagnetic induction system. The power transmission capacity of the power transformer depends on the material and cross-sectional area of ​​the core.

[0003] However, the heat transfer efficiency of transformer cores during operation is currently low, causing heat to accumulate and be unable to be quickly transferred and dissipated. This low heat dissipation efficiency affects the normal use of the core. Therefore, this utility model provides a heat dissipation dry-type transformer core to meet people's needs. Utility Model Content

[0004] This invention provides a heat-dissipating dry-type transformer core, which can effectively solve the problem mentioned in the background art of low heat transfer efficiency of transformer core during operation, which causes heat accumulation, inability to be quickly transferred and dissipated, and low heat dissipation efficiency affecting the normal use of the core.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heat-dissipating dry-type transformer core, including a support base, a heat-conducting metal horizontal plate is attached to the middle of the top of the support base, a lower yoke is placed equidistantly on the surface of the heat-conducting metal horizontal plate, silicon steel sheets of the core are attached to the top and middle of the top of the lower yoke, and an upper yoke is spliced ​​between the tops of the silicon steel sheets of the core.

[0006] The bottom ends of the thermally conductive metal horizontal plate are symmetrically fixedly connected to thermally conductive metal vertical plates, and heat dissipation fins are installed at equal intervals on the corresponding end faces of the bottom of the two thermally conductive metal vertical plates.

[0007] A gas distribution box is installed at one end of the support base. Heat dissipation holes are equally spaced on both sides of one end of the gas distribution box. A bonding block is symmetrically fixed to the top of the gas distribution box. An installation bolt is installed in the middle of the bonding block. A cooling fan is fixedly installed at the end of the gas distribution box away from the heat-conducting metal vertical plate.

[0008] Preferably, the heat-conducting metal vertical plate extends through the top of the support base, and the two ends of the gas distribution box correspond to the positions of the two heat-conducting metal vertical plates respectively;

[0009] The bonding block and the support base are bonded to each other at one end, and the bonding block and the support base are fixedly connected by mounting bolts. The air outlet of the cooling fan is connected to the gas distribution box by a pipe.

[0010] Preferably, the top of the support base is symmetrically provided with positioning slots on both sides of the heat-conducting metal horizontal plate, and U-shaped limiting frames are installed at both ends of the top of the support base. Positioning blocks are fixedly connected to both ends of the bottom of the two U-shaped limiting frames, and operating protrusions are fixedly installed at one end of the top of the two U-shaped limiting frames.

[0011] Preferably, the positioning block is movably inserted into the interior of the positioning slot, both ends of the bottom of the U-shaped limiting frame are in contact with the top of the heat-conducting metal horizontal plate, and the inner wall of the U-shaped limiting frame and the end of the iron core silicon steel sheet are in contact with the edge of the lower iron yoke located on the outermost side.

[0012] Preferably, the top of each of the two bonding blocks is provided with a splicing groove, a protective cover is installed on the top of the gas distribution box, a splicing rubber pad is symmetrically fixedly connected to one end of the protective cover, and a support block is fixedly installed in the middle of the inside of the protective cover.

[0013] Preferably, the two splicing rubber pads are respectively movably embedded inside the two splicing slots, the bottom end of the supporting long block is close to the top of the gas distribution box, and a gap is left between the inner wall of the protective cover and the air inlet of the cooling fan.

[0014] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0015] 1. Equipped with a heat-conducting horizontal metal plate, a heat-conducting vertical metal plate, heat dissipation fins, a gas distribution box, heat dissipation holes, and a cooling fan, the heat-conducting horizontal and vertical metal plates work together to quickly conduct heat downwards from the iron core through contact heat conduction. The heat dissipation fins increase the heat dissipation area and accelerate the heat dissipation process. At the same time, the cooling fan generates airflow, which is blown onto the two heat-conducting vertical metal plates through the gas distribution box and heat dissipation holes, thus assisting the heat dissipation fins in heat dissipation. The airflow can quickly blow heat away from the transformer, effectively improving the heat dissipation efficiency.

[0016] 2. The system is equipped with positioning slots, U-shaped limiting frames, positioning blocks, and operating protrusions. The positioning slots and positioning blocks work together to determine the position of the U-shaped limiting frames. The distance between the two U-shaped limiting frames is the installation position of the lower yoke and the silicon steel sheets of the core. This system provides limiting support for the installation of the lower yoke and the silicon steel sheets of the core, preventing them from tilting or falling over. This improves the stability of the lower yoke and the silicon steel sheets, eliminating the need for constant manual support when stacking the silicon steel sheets of the core. Furthermore, the U-shaped limiting frames are easy to install and remove. After the lower yoke and the silicon steel sheets of the core are installed, they can be disassembled and reused in subsequent transformer assembly.

[0017] 3. The system includes splicing grooves, protective covers, splicing rubber pads, and support blocks. The splicing grooves and splicing rubber pads are used to fix the protective cover in place, allowing it to cover the outside of the gas distribution box and the cooling fan, thus protecting them from collisions with foreign objects. The support blocks support the protective cover, improving its stability. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] In the attached diagram:

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

[0021] Figure 2 This is a schematic diagram of the installation structure of the heat sink fins of this utility model;

[0022] Figure 3 This is a schematic diagram of the installation structure of the positioning block of this utility model;

[0023] Figure 4 This is a schematic diagram of the installation structure of the cooling fan of this utility model;

[0024] The following are labeled in the diagram: 1. Support base; 2. Thermally conductive metal horizontal plate; 3. Lower yoke; 4. Iron core silicon steel sheet; 5. Upper yoke; 6. Thermally conductive metal vertical plate; 7. Heat dissipation fins; 8. Gas distribution box; 9. Heat dissipation hole; 10. Adhesive block; 11. Mounting bolt; 12. Heat dissipation fan; 13. Positioning square groove; 14. U-shaped limit frame; 15. Positioning square block; 16. Operating protrusion; 17. Splicing groove; 18. Protective cover; 19. Splicing rubber pad block; 20. Support long block. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] Example: Figure 1-4 As shown, this utility model provides a technical solution: a heat-dissipating dry-type transformer core, including a support base 1. A heat-conducting metal horizontal plate 2 is attached to the middle of the top of the support base 1. A lower yoke 3 is placed equidistantly on the surface of the heat-conducting metal horizontal plate 2. Iron core silicon steel sheets 4 are attached to the top and middle of the top of the lower yoke 3. An upper yoke 5 is spliced ​​between the tops of the iron core silicon steel sheets 4. Heat-conducting metal vertical plates 6 are symmetrically fixed to both ends of the bottom of the heat-conducting metal horizontal plate 2. Heat dissipation fins 7 are equidistantly installed on the corresponding end faces of the bottom of the two heat-conducting metal vertical plates 6.

[0027] A gas distribution box 8 is installed at one end of the support base 1. A heat-conducting metal vertical plate 6 is movably passed through the top of the support base 1. The two ends of the gas distribution box 8 correspond to the positions of the two heat-conducting metal vertical plates 6 respectively. Heat dissipation holes 9 are equidistantly opened on both sides of one end of the gas distribution box 8. A bonding block 10 is symmetrically fixedly connected to the top of the gas distribution box 8. A mounting bolt 11 is installed in the middle of the bonding block 10. A cooling fan 12 is fixedly installed at the middle end of the gas distribution box 8 away from the heat-conducting metal vertical plate 6. The bonding block 10 is bonded to one end of the support base 1. The bonding block 10 and the support base 1 are fixedly connected by the mounting bolt 11.

[0028] The air outlet of the cooling fan 12 is connected to the gas distribution box 8 through a pipe. Through the cooperation of the heat-conducting metal horizontal plate 2 and the heat-conducting metal vertical plate 6, the heat generated by the iron core can be quickly discharged downward by contact heat conduction. The heat dissipation fins 7 increase the heat dissipation area and accelerate the heat dissipation process. At the same time, the airflow generated by the cooling fan 12 blows through the gas distribution box 8 and the heat dissipation hole 9 onto the two heat-conducting metal vertical plates 6, which plays an auxiliary role in heat dissipation of the heat dissipation fins 7. The airflow can quickly blow the heat to the outside, so that the heat is gradually away from the transformer, effectively improving the heat dissipation efficiency.

[0029] The top of the support base 1 is symmetrically provided with positioning slots 13 on both sides of the heat-conducting metal horizontal plate 2. U-shaped limiting frames 14 are installed at both ends of the top of the support base 1. Positioning blocks 15 are fixedly connected to the bottom ends of the two U-shaped limiting frames 14. Operating protrusions 16 are fixedly installed at one end of the top of each U-shaped limiting frame 14. The positioning blocks 15 are movably inserted into the positioning slots 13. The bottom ends of the U-shaped limiting frames 14 are in contact with the top of the heat-conducting metal horizontal plate 2. The inner wall of the U-shaped limiting frames 14 and the end of the iron core silicon steel sheet 4 are in contact with the edge of the outermost lower yoke 3. The positioning slots 13 and 16 are connected to the top of the heat-conducting metal horizontal plate 2. The use of 3 and positioning block 15 together determines the position of U-shaped limiting frame 14, and the distance between the two U-shaped limiting frames 14 is the installation position of lower yoke 3 and iron core silicon steel sheet 4. It plays a limiting and supporting role in the installation of lower yoke 3 and iron core silicon steel sheet 4, preventing lower yoke 3 and iron core silicon steel sheet 4 from tilting or falling, improving the stability of lower yoke 3 and iron core silicon steel sheet 4. Therefore, when stacking iron core silicon steel sheet 4, no manual support is required at all times. Moreover, the installation and disassembly of U-shaped limiting frame 14 is simple. After the lower yoke 3 and iron core silicon steel sheet 4 are installed, they can be disassembled and reused for subsequent transformer assembly.

[0030] Both fitting blocks 10 have splicing grooves 17 at their top ends. A protective cover 18 is installed on top of the gas distribution box 8. One end of the protective cover 18 is symmetrically fixed with splicing rubber pads 19. A support block 20 is fixedly installed in the middle of the interior of the protective cover 18. The two splicing rubber pads 19 are respectively movably embedded in the interior of the two splicing grooves 17. The bottom end of the support block 20 is close to the top of the gas distribution box 8. There is a gap between the inner wall of the protective cover 18 and the air inlet of the cooling fan 12. The splicing grooves 17 and the splicing rubber pads 19 are spliced ​​together to fix the protective cover 18, so that it covers the outside of the gas distribution box 8 and the cooling fan 12, thus protecting them from collisions with foreign objects. The support block 20 supports the protective cover 18, improving its stability.

[0031] The working principle and usage process of this utility model are as follows: First, before installing the iron core, the worker takes two U-shaped limiting frames 14 and installs them at both ends of the top of the support base 1. The positioning blocks 15 at both ends of the bottom of the U-shaped limiting frame 14 are movably inserted into the positioning slots 13. Both ends of the bottom of the U-shaped limiting frame 14 are attached to the top of the heat-conducting metal horizontal plate 2. The worker places the lower yoke 3 on the top of the heat-conducting metal horizontal plate 2, and the two ends of the lower yoke 3 are movably embedded into the bottom of the U-shaped limiting frame 14. The iron core silicon steel sheet 4 is spliced ​​at both ends of the lower yoke 3, and the bottom end of the iron core silicon steel sheet 4 is inserted into the U-shaped limiting frame 14. Inside the U-shaped limiting frame 14, the two ends of the bottom of the silicon steel sheet 4 are respectively attached to the inner wall of the U-shaped limiting frame 14 and the end of the lower yoke 3. The U-shaped limiting frame 14 plays a limiting and supporting role for the lower yoke 3 and the silicon steel sheet 4, so that they will not tilt or fall over during installation. Then, other clamping and fixing structures are used to lock and clamp the lower yoke 3, the silicon steel sheet 4 and the upper yoke 5. The operator can push the U-shaped limiting frame 14 upward by operating the protrusion 16, so that the positioning block 15 is disengaged from the positioning slot 13. The U-shaped limiting frame 14 can be reused for subsequent transformer core installation.

[0032] The iron core silicon steel sheet 4, the upper yoke 5, and the lower yoke 3 are spliced ​​together, and the bottom end of the lower yoke 3 is attached to the top end of the heat-conducting metal horizontal plate 2. When the iron core generates heat, it can be transferred downward to the heat-conducting metal horizontal plate 2 and then further downward to the two heat-conducting metal vertical plates 6. The heat dissipation fins 7 increase the heat dissipation area, so that the heat can be fully dissipated outward. At the same time, the heat dissipation fan 12 is started, generating airflow into the gas distribution box 8, and then blowing it through the heat dissipation holes 9 onto the heat dissipation fins 7 on the two heat-conducting metal vertical plates 6, accelerating the dissipation of heat, so that the heat is discharged away with the airflow, away from the transformer, and improving the heat dissipation efficiency.

[0033] The protective cover 18 is inserted into the splicing groove 17 by being squeezed and deformed by the splicing rubber pad 19. The support block 20 is attached to the top of the gas distribution box 8 for support, so that the protective cover 18 covers the outside of the gas distribution box 8 and the cooling fan 12, which protects the gas distribution box 8 and the cooling fan 12 and prevents them from being damaged by the impact of foreign objects.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat-dissipating dry-type transformer core, comprising a support base (1), characterized in that: A heat-conducting metal horizontal plate (2) is attached to the middle of the top of the support base (1). A lower iron yoke (3) is placed equidistantly on the surface of the heat-conducting metal horizontal plate (2). Iron core silicon steel sheets (4) are attached to the top and middle of the top of the lower iron yoke (3). An upper iron yoke (5) is spliced ​​between the tops of the iron core silicon steel sheets (4). The bottom ends of the heat-conducting metal horizontal plate (2) are symmetrically fixed with heat-conducting metal vertical plates (6), and heat dissipation fins (7) are installed at equal intervals on the corresponding end faces of the bottom of the two heat-conducting metal vertical plates (6). A gas distribution box (8) is installed at one end of the support base (1). Heat dissipation holes (9) are equally spaced on both sides of one end of the gas distribution box (8). A bonding block (10) is symmetrically fixedly connected to the top of the gas distribution box (8). An installation bolt (11) is installed in the middle of the bonding block (10). A heat dissipation fan (12) is fixedly installed at the end of the gas distribution box (8) away from the heat-conducting metal vertical plate (6).

2. The heat-dissipating dry-type transformer core according to claim 1, characterized in that, The heat-conducting metal vertical plate (6) extends through the top of the support base (1), and the two ends of the gas diversion box (8) correspond to the positions of the two heat-conducting metal vertical plates (6) respectively. The bonding block (10) is bonded to one end of the support base (1), and the bonding block (10) and the support base (1) are fixedly connected by mounting bolts (11). The air outlet of the cooling fan (12) is connected to the gas distribution box (8) by a pipe.

3. The heat-dissipating dry-type transformer core according to claim 1, characterized in that, The top of the support base (1) is symmetrically provided with positioning slots (13) on both sides of the heat-conducting metal horizontal plate (2). Both ends of the top of the support base (1) are equipped with U-shaped limiting frames (14). Both ends of the bottom of the two U-shaped limiting frames (14) are fixedly connected with positioning blocks (15). One end of the top of the two U-shaped limiting frames (14) is fixedly installed with an operating protrusion (16).

4. A heat-dissipating dry-type transformer core according to claim 3, characterized in that, The positioning block (15) is movably inserted into the interior of the positioning slot (13). Both ends of the bottom of the U-shaped limiting frame (14) are in contact with the top of the heat-conducting metal horizontal plate (2). The inner wall of the U-shaped limiting frame (14) and the end of the iron core silicon steel sheet (4) are in contact with the edge of the lower iron yoke (3) located on the outermost side.

5. A heat-dissipating dry-type transformer core according to claim 1, characterized in that, The top of each of the two bonding blocks (10) is provided with a splicing groove (17), and a protective cover (18) is installed on the top of the gas distribution box (8). A splicing rubber pad (19) is symmetrically fixedly connected to one end of the protective cover (18), and a support block (20) is fixedly installed in the middle of the inside of the protective cover (18).

6. A heat-dissipating dry-type transformer core according to claim 5, characterized in that, The two splicing rubber pads (19) are respectively movably embedded inside the two splicing grooves (17), the bottom end of the support block (20) is close to the top of the gas distribution box (8), and there is a gap between the inner wall of the protective cover (18) and the air inlet of the heat dissipation fan (12).

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