High-efficiency heat dissipation transformer iron core

Abstract

The utility model discloses an efficient heat dissipation transformer iron core which comprises an iron core body, cooling boxes are fixedly arranged at the four corners of the iron core body respectively, two pipe joints are fixedly arranged on one side of each cooling box, spiral pipes are arranged in the four cooling boxes respectively, and the two pipe joints are fixedly arranged on the other side of each cooling box. The two ends of the spiral pipe are respectively communicated with the two pipe joints on the same cooling box, the two ends of the two sides of the iron core body are respectively and fixedly provided with a fixed seat, and the four fixed seats are respectively and fixedly provided with a mounting seat. When the cooling fins and the air cooling pipeline cannot meet the cooling requirement of the transformer iron core, cooling liquid is introduced into the spiral pipe, the cap is pulled out, the pipe connector is connected with a cooling liquid conveying pipeline with a pump, the cooling liquid circulates in the spiral pipe, air makes contact with the spiral pipe containing the cooling liquid when passing through the four cooling boxes, and the air is cooled; therefore, the heat dissipation performance is improved.

Description

Technical Field

[0001] The utility model relates to the field of transformers, in particular to a transformer iron core with high-efficiency heat dissipation. Background Art

[0002] 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 a high silicon content and coated with insulating paint. The core and the coil wound on it form a complete electromagnetic induction system. The power transmitted by the power transformer depends on the material and cross-sectional area of ​​the core. Current will flow through the transformer core during operation, and heat will be generated under the action of the coil resistance. Moreover, as the current increases, the heat generated increases synchronously. As the working time increases, the heat generated gradually accumulates over time, thereby increasing the temperature. Long-term high temperature will shorten the service life of the core, and the heat dissipation performance needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to provide a transformer core with efficient heat dissipation, so as to solve the problem raised in the above background technology that as the working time increases, the heat generated gradually accumulates over time, thereby increasing the temperature. Long-term high temperature will shorten the service life of the core, and the heat dissipation performance needs to be improved.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transformer core with high efficiency in heat dissipation, comprising a core body, cooling boxes are fixedly arranged at the four corners of the core body, two pipe joints are fixedly arranged on one side of the four cooling boxes, spiral tubes are arranged inside the four cooling boxes, and the two ends of the spiral tubes are respectively connected to the two pipe joints on the same cooling box, the two ends of the two sides of the core body are fixedly installed with fixing seats, the four fixing seats are fixedly installed with mounting seats, a ventilation box is fixedly installed between the two mounting seats on the same side, the two ventilation boxes are fixedly connected to the machine shell on one side away from the core body, fans are fixedly installed in the middle of the two machine shells, and spiral tubes for flowing coolant are arranged in the cooling box to improve the heat dissipation performance;

[0005] The iron core body includes a plurality of iron core sheets stacked on top of each other, wherein four corners of a plurality of the iron core sheets are fixedly connected with wide heat sinks, and four corners of another plurality of the iron core sheets are fixedly connected with narrow heat sinks, the wide heat sinks and narrow heat sinks are alternately arranged, and a gap located outside the narrow heat sink is provided between two adjacent wide heat sinks, first heat dissipation tubes are laid in the gaps located at the top and bottom of the iron core body, and two second heat dissipation tubes are laid in the gaps located at both sides of the iron core body, both ends of the first heat dissipation tube are respectively connected to two cooling boxes located on the same side of the iron core body, and opposite ends of the two second heat dissipation tubes are connected to the ventilation box on the same side, and the two second heat dissipation tubes are respectively connected to the two cooling boxes on the same side at the ends facing away from each other, and heat is dissipated through the wide heat sinks and the narrow heat sinks, and the laying of heat dissipation tubes improves the heat dissipation performance.

[0006] As a preferred technical solution of the utility model, a plurality of the core sheets are fixedly connected to the middle of the inner sides thereof with core columns, and clips are provided on the upper and lower sides of the front and back sides of the core body.

[0007] As a preferred technical solution of the utility model, the four clips correspond to each other in pairs, and the clips are fixedly connected to another corresponding clip by bolts passing through the core body, and the clips are used to fix the core sheets after lamination.

[0008] As a preferred technical solution of the utility model, the four fixing seats are respectively installed on the outside of the four wide heat sinks in the outermost layer, the four mounting seats are respectively installed on both sides of the two ventilation boxes, the four fixing seats are respectively fixedly connected to the four mounting seats by screws and nuts, and the fixing seats and the mounting seats are used for installation and fixation of the ventilation box.

[0009] As a preferred technical solution of the utility model, a cover cap is snap-fitted and connected to the pipe joint, and the pipe joint is sealed by the cover cap to prevent debris from entering the spiral tube.

[0010] As a preferred technical solution of the utility model, the air inlet of one of the fans is connected to an adjacent ventilation box, and the air outlet of another fan is connected to another ventilation box. One fan is responsible for air intake and the other fan is responsible for air outlet, thereby driving air flow.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the heat dissipation performance is improved by arranging heat sinks and air cooling pipelines; when the heat sinks and air cooling pipelines cannot meet the heat dissipation requirements of the transformer core, coolant is introduced into the spiral tube, the cap is pulled out, and the pipe joint is connected to the coolant delivery pipeline with a pump to allow the coolant to circulate in the spiral tube, and the air contacts the spiral tube containing the coolant when passing through the four cooling boxes to cool the air, thereby improving the heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the iron core body of the utility model;

[0014] Figure 3 It is a cross-sectional view of a part of the structure of the utility model;

[0015] Figure 4 This is an expanded view of part of the core sheet of the core body of the utility model.

[0016] In the figure: 1. iron core body; 2. cooling box; 3. ventilation box; 4. casing; 5. first heat dissipation pipe; 6. pipe joint; 7. second heat dissipation pipe; 8. mounting seat; 9. fixing seat; 10. spiral tube; 11. iron core sheet; 12. narrow heat sink; 13. wide heat sink; 14. gap; 15. iron core column; 16. clip; 17. fan; 18. cover cap. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 The utility model provides a transformer core with high efficiency in heat dissipation, including a core body 1, four corners of the core body 1 are fixedly provided with cooling boxes 2, one side of the four cooling boxes 2 is fixedly provided with two pipe joints 6, the pipe joints 6 are snap-connected with a cap 18, the insides of the four cooling boxes 2 are provided with spiral tubes 10, the two ends of the spiral tubes 10 are respectively connected with the two pipe joints 6 on the same cooling box 2, the two ends of the two sides of the core body 1 are fixedly installed with fixing seats 9, the four fixing seats 9 are fixedly installed with mounting seats 8, a ventilation box 3 is fixedly installed between the two mounting seats 8 on the same side, the two ventilation boxes 3 are fixedly connected with a casing 4 on one side away from the core body 1, and a fan 17 is fixedly installed in the middle of the two casings 4;

[0019] When in use, two fans 17 are used to blow and exhaust the two ventilation boxes 3 respectively, so as to drive the air flow and perform air cooling. When the air passes through the four cooling boxes 2, it contacts the spiral tube 10 containing the coolant to cool the air, thereby improving the heat dissipation performance. It is selected whether to introduce coolant into the spiral tube 10 as needed. When it is necessary to introduce coolant into the spiral tube 10, the cap 18 is pulled out, and the pipe joint 6 is connected to the coolant delivery pipeline with a pump, so that the coolant circulates in the spiral tube 10, and the coolant takes away the heat, thereby reducing the temperature. The common coolant is pure water.

[0020] The core body 1 includes a plurality of core sheets 11 stacked in layers, wherein four corners of the plurality of core sheets 11 are fixedly connected with wide heat sinks 13, and four corners of the plurality of core sheets 11 are fixedly connected with narrow heat sinks 12, and the middle of the inner sides of the plurality of core sheets 11 are fixedly connected with core columns 15, and clips 16 are provided on the upper and lower sides of the front and back sides of the core body 1, and the four clips 16 correspond to each other, and the clips 16 are fixedly connected to the corresponding other clips 16 by bolts passing through the core body 1;

[0021] When in use, the core body 1 is composed of multiple stacked core sheets 11 with core columns 15, and the stacked core sheets 11 are fixed by two pairs of clips 16. The narrow heat sink 12 and wide heat sink 13 connected by the core sheets 11 dissipate heat to improve the heat dissipation performance.

[0022] Wide heat sinks 13 and narrow heat sinks 12 are arranged alternately, and a gap 14 located outside the narrow heat sink 12 is provided between two adjacent wide heat sinks 13. First heat sinks 5 are laid in the gaps 14 located at the top and bottom of the core body 1, and two second heat sinks 7 are laid in the gaps 14 located at both sides of the core body 1. Both ends of the first heat sink 5 are respectively connected to the two cooling boxes 2 located on the same side of the core body 1, and the opposite ends of the two second heat sinks 7 are connected to the ventilation box 3 on the same side. The two second heat sinks 7 are respectively connected to the two cooling boxes 2 on the same side at the ends facing away from each other.

[0023] When in use, the first heat dissipation tube 5 and the second heat dissipation tube 7 are laid in the gap 14 formed by the alternating arrangement of wide heat dissipation fins 13 and narrow heat dissipation fins 12, contact the narrow heat dissipation fins 12 and two adjacent wide heat dissipation fins 13, absorb the heat from the contacting wide heat dissipation fins 13 and narrow heat dissipation fins 12, and improve the heat dissipation performance.

[0024] The four fixing seats 9 are respectively installed on the outside of the four wide heat sinks 13 of the outermost layer, and the four mounting seats 8 are respectively installed on the two sides of the two ventilation boxes 3. The four fixing seats 9 are fixedly connected to the four mounting seats 8 by screws and nuts; the iron core body 1 is fixedly connected to the mounting seats 8 installed on the ventilation box 3 through the installed fixing seats 9, so that the ventilation box 3 and the fan 17 on the casing 4 are fixed to the iron core body 1.

[0025] The air inlet of one of the fans 17 is connected to the adjacent ventilation box 3, and the air outlet of the other fan 17 is connected to the other ventilation box 3. One fan 17 performs air intake work, and the other fan 17 performs air outlet work, thereby driving air flow.

[0026] When used specifically, the utility model provides a transformer core with high efficiency in heat dissipation. A fan 17 performs air intake work on a connected ventilation box 3. After passing through the ventilation box 3, the air enters the second heat dissipation pipe 7 on one side, then enters the two cooling boxes 2, then enters the first heat dissipation pipe 5, then enters the other two cooling boxes 2, and finally enters the ventilation box 3 connected to another fan 17 from the second heat dissipation pipe 7 on the other side. The other fan 17 performs air discharge work to drive the air flow. The first heat dissipation pipe 5 and the second heat dissipation pipe 7 are laid in the gap 14 formed by the alternating arrangement of the wide heat dissipation fins 13 and the narrow heat dissipation fins 12, contact the narrow heat dissipation fins 12 and the two adjacent wide heat dissipation fins 13, absorb the heat on the contacted wide heat dissipation fins 13 and the narrow heat dissipation fins 12, and improve the heat dissipation performance.

[0027] Whether to introduce coolant into the spiral tube 10 is selected as required. When coolant needs to be introduced into the spiral tube 10, the cap 18 is pulled out, and the pipe joint 6 is connected to the coolant delivery pipeline with a pump to allow the coolant to flow in the spiral tube 10. When the air passes through the four cooling boxes 2, it contacts the spiral tube 10 containing the coolant, and the air is cooled down, thereby improving the heat dissipation performance.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A transformer core with high heat dissipation efficiency, comprising a core body (1), characterized in that: The four corners of the core body (1) are fixedly provided with cooling boxes (2), one side of the four cooling boxes (2) is fixedly provided with two pipe joints (6), the inside of the four cooling boxes (2) is provided with a spiral tube (10), the two ends of the spiral tube (10) are respectively connected to the two pipe joints (6) on the same cooling box (2), the two ends of both sides of the core body (1) are fixedly installed with fixing seats (9), the four fixing seats (9) are fixedly installed with mounting seats (8), a ventilation box (3) is fixedly installed between the two mounting seats (8) on the same side, the two ventilation boxes (3) are fixedly connected to the machine casing (4) on the side facing away from the core body (1), and the middle of the two machine casings (4) is fixedly installed with a fan (17); The iron core body (1) comprises a plurality of iron core sheets (11) stacked in layers, wherein the four corners of the plurality of iron core sheets (11) are fixedly connected with wide heat sinks (13), and the four corners of the plurality of iron core sheets (11) are fixedly connected with narrow heat sinks (12), the wide heat sinks (13) and the narrow heat sinks (12) are arranged alternately, and a gap (14) located outside the narrow heat sink (12) is provided between two adjacent wide heat sinks (13), first heat sinks (5) are laid in the gaps (14) located at the top and bottom of the iron core body (1), and two second heat sinks (7) are laid in the gaps (14) located at both sides of the iron core body (1), the two ends of the first heat sink (5) are respectively connected to two cooling boxes (2) located on the same side of the iron core body (1), the opposite ends of the two second heat sinks (7) are connected to the ventilation box (3) on the same side, and the two second heat sinks (7) are respectively connected to the two cooling boxes (2) on the same side at the ends facing away from each other.

2. The transformer core with high heat dissipation efficiency according to claim 1, characterized in that: An iron core column (15) is fixedly connected to the middle of the inner side of each of the plurality of iron core sheets (11), and clamping pieces (16) are provided on the upper and lower sides of the front and back sides of the iron core body (1).

3. The transformer core with high efficiency heat dissipation according to claim 2, characterized in that: The four clips (16) correspond to each other in pairs, and the clips (16) are fixedly connected to another corresponding clip (16) by means of bolts passing through the core body (1).

4. The transformer core with high efficiency heat dissipation according to claim 1, characterized in that: The four fixing seats (9) are respectively installed on the outside of the four wide heat sinks (13) in the outermost layer, the four mounting seats (8) are respectively installed on both sides of the two ventilation boxes (3), and the four fixing seats (9) are respectively fixedly connected to the four mounting seats (8) by screws and nuts.

5. The transformer core with high efficiency heat dissipation according to claim 1, characterized in that: The pipe joint (6) is snap-connected with a cover cap (18).

6. The transformer core with high heat dissipation efficiency according to claim 1, characterized in that: The air inlet of one of the fans (17) is in communication with an adjacent ventilation box (3), and the air outlet of another fan (17) is in communication with another ventilation box (3).

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