Core structure of an amorphous transformer

Abstract

The present invention discloses a core structure of an amorphous transformer, and the upper core and the lower core are spliced with each other. A coil is sleeved outside the upper core and the lower core. Heat dissipation channel structures are uniformly arranged in the upper core and the lower core. A connecting block is fixedly assembled on the lower surface of the lower core, and a bottom plate is fixedly assembled on the lower surface of the connecting block. First heat dissipation structures are symmetrically and fixedly assembled on the left and right sides of the upper surface of the bottom plate, and a second heat dissipation structure is fixedly assembled in the middle of the upper surface of the bottom plate. The first heat dissipation structure and the second heat dissipation structure are distributed corresponding to the heat dissipation channel structure up and down. The device realizes the cooperation between the fan and the air duct in the core, providing better heat dissipation performance for the transformer core; at the same time, the device conducts a reinforcement design on the splicing structure of the upper core and the lower core, making the splicing of the upper core and the lower core more stable and firm, avoiding the vibration of the core, and ensuring the use performance of the transformer.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer core structures, and particularly to a core structure of an amorphous transformer. Background Art

[0002] As long as a transformer is powered on, heat will be generated in the transformer core and coil. Usually, for high-voltage, dry-type transformers, their heat dissipation effect has a great impact on product quality. An amorphous transformer is a dry-type transformer, usually cooled by air, but traditional air cooling is slow, and it is still easy to accumulate a large amount of heat in high-voltage, dry-type transformers, affecting the service life of the equipment; at the same time, the transformer core is usually used in two parts connected together, which is conducive to splicing two E-shaped cores or splicing an E-shaped core and an I-shaped core. There will always be a certain gap in the connection of the two cores, and such a gap cavity will reduce the stability of the core, easily cause vibration, and affect the use performance of the transformer. Summary of the Invention

[0003] The purpose of the present invention is to provide a core structure of an amorphous transformer to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A core structure of an amorphous transformer, including an upper core and a lower core, and the upper core and the lower core are spliced with each other. A coil is sleeved outside the upper core and the lower core. Heat dissipation channel structures are evenly opened in the upper core and the lower core. A connecting block is fixedly assembled on the lower surface of the lower core, a bottom plate is fixedly assembled on the lower surface of the connecting block, first heat dissipation structures are symmetrically and fixedly assembled on the left and right sides of the upper surface of the bottom plate, a second heat dissipation structure is fixedly assembled in the middle of the upper surface of the bottom plate, and the first heat dissipation structures and the second heat dissipation structure are distributed corresponding to the heat dissipation channel structures up and down.

[0005] Preferably, first rectangular grooves are opened on both the front and rear sides of the bottom surface of the upper core. First glue injection through holes are evenly opened on the outer side walls of the first rectangular grooves. A first insertion block is fixedly assembled on the inner side wall of the first rectangular groove. The lower end of the first insertion block extends out of the first rectangular groove. A rectangular protrusion is fixedly assembled on the outer side surface of the first insertion block;

[0006] Second rectangular grooves are opened on both the front and rear sides of the top surface of the lower core. A second insertion block is fixedly assembled on the outer side wall of the second rectangular groove. Second glue injection through holes are evenly opened on the outer side wall of the second rectangular groove. The inner ends of the second glue injection through holes penetrate through the second insertion block and communicate with the second rectangular groove. A rectangular groove is opened on the inner side surface of the second insertion block. The second insertion block is inserted into the first rectangular groove, the first insertion block is inserted into the second rectangular groove, and the rectangular protrusion is inserted into the corresponding rectangular groove.

[0007] Preferably, the heat dissipation channel structure includes a first air duct and a second air duct. The first air duct is longitudinally provided on the left and right sides and the middle of the upper iron core, and the second air duct is longitudinally provided on the left and right sides and the middle of the lower iron core. The first air duct and the second air duct are in one-to-one correspondence and communication up and down.

[0008] Preferably, the first heat dissipation structure includes a vertical plate fixedly assembled on the outer side of the upper surface of the bottom plate. A first fan is fixedly assembled on the inner side surface of the vertical plate, and the first fan is located at the lower ends of the second air ducts on the left and right sides. A baffle is fixedly assembled on the inner side surface of the first fan. An inclined plate is fixedly assembled at the upper end of the vertical plate, and the upper end of the inclined plate inclines inwards. A first ventilation hole is provided on the upper surface of the bottom plate corresponding to the position of the first fan. The lower end of the first ventilation hole communicates with a ventilation duct provided in the bottom plate. An air inlet hole is provided on the upper surface of the ventilation duct, and the upper end of the air inlet hole penetrates through the bottom plate and extends to the outside.

[0009] Preferably, the second heat dissipation structure includes two mounting plates fixedly assembled in the middle of the upper surface of the bottom plate. A second fan is fixedly assembled between the inner side surfaces of the two mounting plates, and the second fan is located at the lower end of the second air duct in the middle. A second ventilation hole is provided on the upper surface of the bottom plate corresponding to the position of the second fan. The lower end of the second ventilation hole communicates with an air inlet channel provided in the bottom plate. The front and rear ends of the air inlet channel penetrate through the bottom plate and extend to the outside.

[0010] Preferably, limiting plates are fixedly assembled on the outer side surfaces of the upper iron core and the lower iron core, and the coil is located between the limiting plates of the upper iron core and the lower iron core.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: This solution designs an iron core structure of an amorphous transformer. This device utilizes the heat dissipation channel structure and the first heat dissipation structure and the second heat dissipation structure used in cooperation to realize the cooperation between the fan and the air duct in the iron core, providing better heat dissipation performance for the transformer iron core; at the same time, the device conducts a reinforcement design on the splicing structure of the upper iron core and the lower iron core, making the splicing of the upper iron core and the lower iron core more stable and firm. Hot melt adhesive is injected into the first rectangular groove and the second rectangular groove through the first glue injection through hole and the second glue injection through hole to further reinforce the splicing of the upper iron core and the lower iron core, avoiding vibration of the iron core and ensuring the use performance of the transformer. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the present invention.

[0013] Figure 2 It is a schematic diagram of the bottom surface structure of the upper iron core in the present invention.

[0014] Figure 3 It is a schematic diagram of the top surface structure of the lower iron core in the present invention.

[0015] Figure 4 This is a schematic cross-sectional view of the heat dissipation channel structure in the present invention.

[0016] In the figure: 1 upper iron core, 11 first rectangular groove, 12 first glue injection through hole, 13 first insert block, 14 rectangular protrusion, 2 lower iron core, 21 second rectangular groove, 22 second insert block, 23 second glue injection through hole, 24 rectangular groove, 3 coil, 4 heat dissipation channel structure, 41 first air duct, 42 second air duct, 5 connecting block, 6 bottom plate, 7 first heat dissipation structure, 71 vertical plate, 72 first fan, 73 baffle plate, 74 inclined plate, 75 first ventilation hole, 76 ventilation duct, 77 air inlet hole, 8 second heat dissipation structure, 81 mounting plate, 82 second fan, 83 second ventilation hole, 84 air inlet channel. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0018] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the present invention provides a technical solution: a core structure of an amorphous transformer, including an upper iron core 1 and a lower iron core 2, and the upper iron core 1 and the lower iron core 2 are spliced with each other. A coil 3 is sleeved outside the upper iron core 1 and the lower iron core 2. Heat dissipation channel structures 4 are uniformly arranged in the upper iron core 1 and the lower iron core 2. A connecting block 5 is fixedly assembled on the lower surface of the lower iron core 2. A bottom plate 6 is fixedly assembled on the lower surface of the connecting block 5. First heat dissipation structures 7 are symmetrically and fixedly assembled on the left and right sides of the upper surface of the bottom plate 6. A second heat dissipation structure 8 is fixedly assembled in the middle of the upper surface of the bottom plate 6. The first heat dissipation structure 7 and the second heat dissipation structure 8 are distributed corresponding to the heat dissipation channel structure 4 up and down.

[0019] The upper iron core 1 and the lower iron core 2 are spliced with each other. The splicing structure is used to reinforce the whole core, so that the upper iron core 1 and the lower iron core 2 are more stable and firm after splicing. Hot melt adhesive is injected into the first rectangular groove 11 and the second rectangular groove 21 through the first glue injection through hole 12 and the second glue injection through hole 23 to further reinforce the splicing of the upper iron core 1 and the lower iron core 2, avoid the core from vibrating, and ensure the use performance of the transformer.

[0020] The first heat dissipation structure 7 and the second heat dissipation structure 8 installed on the bottom plate 6 cooperate with the heat dissipation channel structure 4 above to dissipate heat, so that the wind blows into the first air duct 41 and the second air duct 42 to take away the heat in the iron core and provide better heat dissipation performance for the transformer iron core.

[0021] On the front and rear sides of the bottom surface of the upper iron core 1, first rectangular grooves 11 are provided. On the outer side walls of the first rectangular grooves 11, first glue injection through holes 12 are evenly provided. On the inner side walls of the first rectangular grooves 11, first insertion blocks 13 are fixedly assembled. The lower ends of the first insertion blocks 13 extend out of the first rectangular grooves 11. On the outer side surfaces of the first insertion blocks 13, rectangular protrusions 14 are fixedly assembled;

[0022] On the front and rear sides of the top surface of the lower iron core 2, second rectangular grooves 21 are provided. On the outer side walls of the second rectangular grooves 21, second insertion blocks 22 are fixedly assembled. On the outer side walls of the second rectangular grooves 21, second glue injection through holes 23 are evenly provided. The inner ends of the second glue injection through holes 23 penetrate through the second insertion blocks 22 and communicate with the second rectangular grooves 21. On the inner side surfaces of the second insertion blocks 22, rectangular grooves 24 are provided. The second insertion blocks 22 are inserted into the first rectangular grooves 11. The first insertion blocks 13 are inserted into the second rectangular grooves 21. The rectangular protrusions 14 are inserted into the corresponding rectangular grooves 24.

[0023] During use, the second insertion blocks 22 are inserted into the first rectangular grooves 11, and the first insertion blocks 13 are inserted into the second rectangular grooves 21. At this time, a small gap is formed between the second insertion blocks 22 and the first insertion blocks 13 for the entry of hot melt adhesive. The hot melt adhesive enters the first rectangular grooves 11 and the second rectangular grooves 21 through the first glue injection through holes 12 and the second glue injection through holes 23, enters the small gap formed between the second insertion blocks 22 and the first insertion blocks 13, and pastes and fixes the second insertion blocks 22, the first insertion blocks 13, the first rectangular grooves 11, and the second rectangular grooves 21.

[0024] The heat dissipation channel structure 4 includes a first air duct 41 and a second air duct 42. The first air duct 41 is longitudinally provided on the left and right sides and the middle part of the upper iron core 1. The second air duct 42 is longitudinally provided on the left and right sides and the middle part of the lower iron core 2. The first air duct 41 and the second air duct 42 are in one-to-one correspondence and communication up and down.

[0025] As Figure 2 and 3 shown, the positions of the first air duct 41 and the second air duct 42 in the iron core are located between the rectangular grooves on the front and rear sides. The first rectangular grooves 11 and the second rectangular grooves 21 are symmetrically distributed on the front and rear sides of the iron core, and the connection stability is better. The heat dissipation channel structure 4 is located in the middle of the iron core, and the heat dissipation is more uniform.

[0026] The first heat dissipation structure 7 includes a vertical plate 71 fixedly assembled on the outer side of the upper surface of the bottom plate 6. A first fan 72 is fixedly assembled on the inner side surface of the vertical plate 71, and the first fan 72 is located at the lower ends of the second air ducts 42 on the left and right sides. A baffle plate 73 is fixedly assembled on the inner side surface of the first fan 72. An inclined plate 74 is fixedly assembled at the upper end of the vertical plate 71, and the upper end of the inclined plate 74 inclines inwards. A first ventilation hole 75 is formed in the upper surface of the bottom plate 6 corresponding to the position of the first fan 72. The lower end of the first ventilation hole 75 communicates with a ventilation duct 76 formed in the bottom plate 6. An air inlet hole 77 is formed in the upper surface of the ventilation duct 76, and the upper end of the air inlet hole 77 penetrates through the bottom plate 6 and extends to the outside.

[0027] Both the first fan 72 and the second fan 82 are connected to a power supply, which is transformed from the internal power supply of the transformer. The air flow directions of the first fan 72 and the second fan 82 are both from bottom to top. The first fan 72 blows air upwards and blows into the second air duct 42 along the baffle plate 73 and the inclined plate 74. The air intake at the lower end of the first fan 72 is supplied from the first ventilation hole 75. External air is drawn in from the air inlet hole 77, enters the first fan 72 along the ventilation duct 76 and the first ventilation hole 75, and the first fan 72 drives the air to flow to form wind.

[0028] The second heat dissipation structure 8 includes two mounting plates 81 fixedly assembled in the middle of the upper surface of the bottom plate 6. A second fan 82 is fixedly assembled between the inner side surfaces of the two mounting plates 81, and the second fan 82 is located at the lower end of the second air duct 42 in the middle. A second ventilation hole 83 is formed in the upper surface of the bottom plate 6 corresponding to the position of the second fan 82. The lower end of the second ventilation hole 83 communicates with an air intake passage 84 formed in the bottom plate 6. Both the front and rear ends of the air intake passage 84 penetrate through the bottom plate 6 and extend to the outside.

[0029] The second fan 82 blows air upwards and enters the second air duct 42 along the two side mounting plates 81. The air intake at the lower end of the second fan 82 is supplied from the second ventilation hole 83. External air is drawn in from the air intake passage 84 and enters the second fan 82 along the second ventilation hole 83, and the second fan 82 drives the air to flow to form wind.

[0030] Limit plates are fixedly assembled on the outer side surfaces of the upper iron core 1 and the lower iron core 2. The coil 3 is located between the limit plates of the upper iron core 1 and the lower iron core 2. The limit plates on the upper iron core 1 and the lower iron core 2 are located at the upper and lower ends of the coil 3. The iron coil 3 is in close contact with the two side limit plates, and the limit plates are used to limit the displacement of the coil 3 and prevent the coil 3 from loosening.

[0031] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0032] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The iron core structure of an amorphous transformer, characterized in that: It includes an upper iron core (1) and a lower iron core (2), and the upper iron core (1) and the lower iron core (2) are spliced with each other. A coil (3) is sleeved outside the upper iron core (1) and the lower iron core (2). A heat dissipation channel structure (4) is evenly opened in the upper iron core (1) and the lower iron core (2). A connecting block (5) is fixedly assembled on the lower surface of the lower iron core (2). A bottom plate (6) is fixedly assembled on the lower surface of the connecting block (5). First heat dissipation structures (7) are symmetrically and fixedly assembled on the left and right sides of the upper surface of the bottom plate (6). A second heat dissipation structure (8) is fixedly assembled in the middle of the upper surface of the bottom plate (6). The first heat dissipation structures (7) and the second heat dissipation structure (8) are distributed in an up-and-down corresponding manner with the heat dissipation channel structure (4). First rectangular grooves (11) are opened on both the front and rear sides of the bottom surface of the upper iron core (1). First glue injection through holes (12) are evenly opened on the outer side walls of the first rectangular grooves (11). A first plug (13) is fixedly assembled on the inner side wall of the first rectangular grooves (11). The lower end of the first plug (13) extends out of the first rectangular grooves (11). A rectangular protrusion (14) is fixedly assembled on the outer side surface of the first plug (13). Second rectangular grooves (21) are opened on both the front and rear sides of the top surface of the lower iron core (2). A second plug (22) is fixedly assembled on the outer side wall of the second rectangular grooves (21). Second glue injection through holes (23) are evenly opened on the outer side wall of the second rectangular grooves (21). The inner ends of the second glue injection through holes (23) penetrate through the second plug (22) and communicate with the second rectangular grooves (21). A rectangular groove (24) is opened on the inner side surface of the second plug (22). The second plug (22) is inserted into the first rectangular grooves (11). The first plug (13) is inserted into the second rectangular grooves (21). The rectangular protrusion (14) is inserted into the corresponding rectangular groove (24).

2. The iron core structure of an amorphous transformer according to claim 1, wherein: The heat dissipation channel structure (4) includes a first air duct (41) and a second air duct (42). The first air duct (41) is longitudinally opened on the left and right sides and in the middle of the upper iron core (1). The second air duct (42) is longitudinally opened on the left and right sides and in the middle of the lower iron core (2). The first air duct (41) and the second air duct (42) are connected in an up-and-down corresponding manner one by one.

3. The core structure of an amorphous transformer according to claim 2, characterized in that: The first heat dissipation structure (7) includes a vertical plate (71) fixedly assembled on the outer side of the upper surface of the bottom plate (6). A first fan (72) is fixedly assembled on the inner side surface of the vertical plate (71), and the first fan (72) is located at the lower ends of the second air ducts (42) on the left and right sides. A baffle (73) is fixedly assembled on the inner side surface of the first fan (72). An inclined plate (74) is fixedly assembled at the upper end of the vertical plate (71), and the upper end of the inclined plate (74) inclines inwards. A first ventilation hole (75) is formed in the upper surface of the bottom plate (6) corresponding to the position of the first fan (72). The lower end of the first ventilation hole (75) communicates with a ventilation duct (76) formed in the bottom plate (6). An air inlet hole (77) is formed in the upper surface of the ventilation duct (76), and the upper end of the air inlet hole (77) penetrates through the bottom plate (6) and extends to the outside.

4. The iron core structure of an amorphous transformer according to claim 2, wherein: The second heat dissipation structure (8) includes two mounting plates (81) fixedly assembled in the middle of the upper surface of the bottom plate (6). A second fan (82) is fixedly assembled between the inner side surfaces of the two mounting plates (81), and the second fan (82) is located at the lower end of the second air duct (42) in the middle. A second ventilation hole (83) is formed in the upper surface of the bottom plate (6) corresponding to the position of the second fan (82). The lower end of the second ventilation hole (83) communicates with an air inlet passage (84) formed in the bottom plate (6). Both the front and rear ends of the air inlet passage (84) penetrate through the bottom plate (6) and extend to the outside.

5. The core structure of an amorphous transformer according to claim 1, wherein: Limiting plates are fixedly assembled on the outer side surfaces of the upper iron core (1) and the lower iron core (2), and the coil (3) is located between the limiting plates of the upper iron core (1) and the lower iron core (2).

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