Double-iron-core transformer with high voltage transformation range

Abstract

The utility model relates to the technical field of transformers, and discloses a double-iron-core transformer with a wide transformation range, which comprises an outer shell, the lower surface of the outer shell is fixedly connected with a mounting strip, the upper end of the outer shell is respectively provided with a high-voltage bushing, a low-voltage bushing and a wiring terminal, and the bottom surface in the outer shell is fixedly connected with two connecting seats. An inner shell is fixedly connected to the upper ends of the two connecting bases, iron cores are fixedly connected to the left end and the right end in the inner shell, windings are wound on the surfaces of the iron cores, the number of turns of the output ends of the windings is larger than that of turns of the input ends of the windings, and a heat dissipation structure is arranged between the iron cores and comprises a driving motor and heat dissipation fan blades. The heat dissipation structure is arranged to dissipate heat of the iron core and the winding, so that the temperature rise of the transformer can be effectively reduced, the energy loss is reduced, the working efficiency is improved, the service life of the transformer is prolonged, heat dissipation is effective, faults and damage caused by overheating of the transformer can be avoided, and the safety of the transformer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a double-core transformer with a high voltage transformation range. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, the secondary coil and the iron core. In electrical equipment and wireless circuits, it is often used to increase or decrease voltage, match impedance, and provide safety isolation. In a generator, whether the coil moves through the magnetic field or the magnetic field moves through a fixed coil, an electric potential can be induced in the coil.

[0003] In the prior art, the patent announcement number CN212625131U discloses a low-noise dual-energy-saving rolled iron core intelligent transformer, including a box, a transformer body, a fan and a dustproof net, a rubber pad is arranged on the upper part of the interior of the box, a connecting column is connected to the inner and outer sides of the box, a shock-absorbing gasket is arranged above the connecting column, a noise reduction plate is arranged on the inner wall of the box, a heat dissipation port is opened on the outer side of the box, and a fan is installed on the inner side of the heat dissipation port, a guide groove is opened inside the heat dissipation port, and a dustproof net is installed inside the guide groove, and a pull ring is connected to the bottom end of the dustproof net, a shutter is arranged on the outer side of the heat dissipation port, and a movable plate is installed below the shutter. The low-noise dual-energy-saving rolled iron core intelligent transformer is convenient for shock absorption of the transformer, avoids noise generated by the transformer, and can absorb noise, thereby isolating the spread of noise, and is convenient for heat dissipation and dust prevention of the transformer, thereby facilitating the operation of the transformer.

[0004] With respect to the above scheme, there are the following technical problems: in some power generation projects, the transformer needs to have a higher voltage range. In this case, a double-core transformer with a high voltage range is needed. In the prior art, the double-core transformer with a high voltage range has a higher voltage range, so the voltage will be higher. Under the high voltage, the heat will increase. If the heat dissipation effect is too poor, it will cause damage to the inside of the transformer. Therefore, the double-core transformer with a high voltage range in the prior art has the defect of poor heat dissipation effect. Utility Model Content

[0005] The purpose of the utility model is to provide a double-core transformer with a high voltage transformation range to solve the problems raised in the above-mentioned background technology: in the prior art, the double-core transformer with a high voltage transformation range has a high voltage transformation range, so the voltage will be relatively large. Under the cleaning of the high voltage, the heat will increase. If the heat dissipation effect is too poor, it will cause damage to the inside of the transformer.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-core transformer with a high voltage transformation range, comprising an outer shell, a mounting strip fixedly connected to the lower surface of the outer shell, a plurality of heat sinks fixedly connected to the surface of the outer shell, insulating plates fixedly connected to the surfaces of the heat sinks on the left and right sides, oil filled inside the heat sinks to dissipate heat for the transformer to a certain extent, a high-voltage bushing, a low-voltage bushing and a wiring terminal are respectively provided at the upper end of the outer shell, two connecting seats are fixedly connected to the bottom surface of the inner shell, an inner shell is fixedly connected to the upper ends of the two connecting seats, an iron core is fixedly connected to the left and right ends of the inner shell, a winding is wound around the surface of the iron core, the number of turns at the output end of the winding is greater than that at the input end, a heat dissipation structure is provided between the iron cores, and the heat dissipation structure includes a drive motor and heat dissipation fan blades.

[0007] In a preferred embodiment of the utility model, the high-voltage bushing is fixedly connected to the left side and the middle of the upper end of the outer shell, the low-voltage bushing is fixedly connected to the right side of the upper end of the outer shell, and the wiring terminals are arranged on the front sides of the high-voltage bushing and the low-voltage bushing, and there are several wiring terminals.

[0008] In a preferred embodiment of the utility model, both sides of the upper surface of the outer shell are fixedly connected with hanging rings, and the left end of the upper surface of the outer shell is fixedly connected with a thermometer, and the thermometer monitors the temperature of the transformer.

[0009] In a preferred embodiment of the present utility model, the driving motor is fixedly connected to the upper end of the outer shell, the output end of the driving motor is fixedly connected to a rotating rod, the rotating rod passes through the inner shell and is fixedly connected to a driving bevel gear, both sides of the driving bevel gear are meshed with driven bevel gears, the side of the driven bevel gear away from the other side is fixedly connected to a rotating shaft, the surface of the rotating shaft is fixedly connected to the heat dissipation fan blades, the bottom surface inside the inner shell is fixedly connected to a fixing rod, both sides of the upper end of the fixing rod are rotatably connected to rotating blocks, and the end of the rotating block away from the fixing rod is rotatably connected to the driven bevel gear.

[0010] In a preferred embodiment of the utility model, ventilation holes are provided on both sides of the inner shell and on the bottom surface of the outer shell, and filters are fixedly connected to the ventilation holes on both sides of the inner shell. Electric push rods are fixedly connected to both sides of the upper end of the inner shell, and a cleaning brush is fixedly connected to the telescopic end of the electric push rod, which cleans the filter.

[0011] Beneficial Effects

[0012] The utility model provides a double-core transformer with a high voltage transformation range, which has the following beneficial effects:

[0013] 1. The double-core transformer can effectively reduce the temperature rise of the transformer, reduce energy loss, and improve work efficiency by setting a heat dissipation structure to dissipate heat from the core and winding. At the same time, it can effectively reduce the temperature of the transformer, reduce the thermal stress of the winding and the core, thereby extending the service life of the transformer. Effective heat dissipation can avoid failure and damage of the transformer due to overheating and improve the safety of the transformer.

[0014] 2. The double-core transformer can block dust from entering the interior of the transformer by setting a filter, reducing the impact of dust on the transformer, thereby maintaining the normal working state of the transformer and improving its working efficiency. At the same time, the setting of the cleaning brush can regularly clean the filter to reduce dust accumulation on the surface of the filter, keep the filter ventilated and unobstructed, which is more conducive to heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front section structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. outer shell; 2. mounting strip; 3. heat sink; 4. insulating plate; 5. high-voltage bushing; 6. low-voltage bushing; 7. terminal; 8. connecting seat; 9. inner shell; 10. iron core; 11. winding; 12. heat dissipation structure; 13. driving motor; 14. heat dissipation fan blade; 15. lifting ring; 16. thermometer; 17. rotating rod; 18. driving bevel gear; 19. driven bevel gear; 20. rotating shaft; 21. fixing rod; 22. rotating block; 23. filter; 24. electric push rod; 25. cleaning brush. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3The utility model provides a technical solution: a double-core transformer with a high voltage range, comprising an outer shell 1, a mounting strip 2 is fixedly connected to the lower surface of the outer shell 1, a plurality of heat sinks 3 are fixedly connected to the surface of the outer shell 1, and insulating plates 4 are fixedly connected to the surfaces of the heat sinks 3 on the left and right sides. The heat sinks 3 are filled with oil to dissipate heat to the transformer to a certain extent. A high-voltage bushing 5, a low-voltage bushing 6 and a wiring terminal 7 are respectively arranged on the upper end of the outer shell 1, the high-voltage bushing 5 is fixedly connected to the left and middle of the upper end of the outer shell 1, the low-voltage bushing 6 is fixedly connected to the right side of the upper end of the outer shell 1, the wiring terminal 7 is arranged on the front side of the high-voltage bushing 5 and the low-voltage bushing 6, and there are several wiring terminals 7. Hanging rings 15 are fixedly connected to both sides of the upper surface of the outer shell 1, and a thermometer 16 is fixedly connected to the left end of the upper surface of the outer shell 1. The thermometer 16 monitors the temperature of the transformer. The transformer is installed at a required position through the mounting strip 2. When there is no place to install it, the hanging ring 15 can be used to lift the transformer.

[0021] The bottom surface of the outer shell 1 is fixedly connected to two connection seats 8, the upper ends of the two connection seats 8 are fixedly connected to the inner shell 9, the left and right ends of the inner shell 9 are fixedly connected to the iron core 10, the surface of the iron core 10 is wound with a winding 11, the number of turns at the output end of the winding 11 is greater than the number of turns at the input end, a heat dissipation structure 12 is arranged between the iron cores 10, the heat dissipation structure 12 includes a drive motor 13 and a heat dissipation fan blade 14, the drive motor 13 is fixedly connected to the upper end of the outer shell 1, and the output end of the drive motor 13 is fixedly connected to the inner shell 9. A rotating rod 17 is connected, the rotating rod 17 passes through the inner shell 9 and is fixedly connected to a driving bevel gear 18, both sides of the driving bevel gear 18 are meshed with driven bevel gears 19, the side of the driven bevel gear 19 away from the other side is fixedly connected to a rotating shaft 20, the surface of the rotating shaft 20 is fixedly connected to the heat dissipation fan blade 14, the bottom surface inside the inner shell 9 is fixedly connected to a fixed rod 21, both sides of the upper end of the fixed rod 21 are rotatably connected to rotating blocks 22, and the end of the rotating block 22 away from the fixed rod 21 is rotatably connected to the driven bevel gear 19.

[0022] When the transformer is working, the drive motor 13 is started, and the drive motor 13 rotates to drive the rotating rod 17 to rotate. The rotating rod 17 then drives the active bevel gear 18 at the lower end to rotate, and the active bevel gear 18 drives the driven bevel gears 19 on both sides to engage and transmit. The driven bevel gears 19 on both sides drive the rotating shaft 20 to rotate, and the heat dissipation fan blades 14 then rotate with the rotating shaft 20 to dissipate heat for the iron core 10 and the winding 11. The blown heat is discharged through the vents on both sides of the inner shell 9 and the lower end of the outer shell 1. By setting the heat dissipation structure 12 to dissipate heat for the iron core 10 and the winding 11, the temperature rise of the transformer can be effectively reduced, the energy loss can be reduced, and the working efficiency can be improved. At the same time, the temperature of the transformer can be effectively reduced, and the thermal stress of the winding 11 and the iron core 10 can be reduced, thereby extending the service life of the transformer. Effective heat dissipation can avoid failures and damages of the transformer caused by overheating, thereby improving the safety of the transformer.

[0023] Ventilation holes are provided on both sides of the inner shell 9 and on the bottom surface of the outer shell 1. The ventilating holes on both sides of the inner shell 9 are fixedly connected with filter screens 23. Electric push rods 24 are fixedly connected to both sides of the upper end of the inner shell 1. A cleaning brush 25 is fixedly connected to the telescopic end of the electric push rod 24. The filter screen 23 blocks dust and impurities entering from the vent holes and other places on the outside of the inner shell 9. When dust accumulates on the outside of the filter screen 23, the electric push rod 24 is started, and the electric push rod 24 drives the cleaning brush 25 to move up and down. The cleaning brush 25 cleans the surface of the filter screen 23. By setting the filter screen 23, dust can be blocked from entering the interior of the transformer, reducing the impact of dust on the transformer, thereby maintaining the normal working state of the transformer and improving its working efficiency. At the same time, the setting of the cleaning brush 25 can regularly clean the filter screen 23, which can reduce the accumulation of dust on the surface of the filter screen 23, keep the filter screen 23 ventilated and unobstructed, and is more conducive to heat dissipation.

[0024] How to use: First, install the transformer at the required position through the installation bar 2. When there is no place to install it, the transformer can be lifted using the lifting ring 15.

[0025] When the transformer is working, the driving motor 13 is started, and the driving motor 13 rotates to drive the rotating rod 17 to rotate. The rotating rod 17 then drives the active bevel gear 18 at the lower end to rotate, and the active bevel gear 18 drives the driven bevel gears 19 on both sides to engage and transmit. The driven bevel gears 19 on both sides rotate the rotating shaft 20, and the heat dissipation fan blades 14 then rotate with the rotating shaft 20 to dissipate heat for the iron core 10 and the winding 11, and the blown hot air is discharged through the filter screens 23 on both sides of the inner shell 9 and the vents at the lower end of the outer shell 1.

[0026] The filter 23 blocks dust and impurities entering from the vent and other places on the outside of the inner shell 9. When dust accumulates outside the filter 23, the electric push rod 24 is started, and the electric push rod 24 drives the cleaning brush 25 to move up and down, and the cleaning brush 25 cleans the surface of the filter 23.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-core transformer with a high voltage range, comprising an outer shell (1), characterized in that: The lower surface of the outer shell (1) is fixedly connected to a mounting strip (2), the surface of the outer shell (1) is fixedly connected to a plurality of heat sinks (3), the surfaces of the heat sinks (3) on the left and right sides are fixedly connected to insulating plates (4), the interior of the heat sinks (3) is filled with oil to dissipate heat for the transformer to a certain extent, the upper end of the outer shell (1) is respectively provided with a high-voltage bushing (5), a low-voltage bushing (6) and a connection terminal (7), the bottom surface of the inner part of the outer shell (1) is fixedly connected to two connection seats (8), and the upper ends of the two connection seats (8) are fixedly connected to an inner shell (9); An iron core (10) is fixedly connected to both left and right ends of the inner shell (9), a winding (11) is wound around the surface of the iron core (10), the number of turns at the output end of the winding (11) is greater than the number of turns at the input end, a heat dissipation structure (12) is arranged between the iron cores (10), and the heat dissipation structure (12) includes a drive motor (13) and heat dissipation fan blades (14).

2. A double-core transformer with a high voltage range according to claim 1, characterized in that: The high-voltage bushing (5) is fixedly connected to the left side and the middle of the upper end of the outer shell (1), the low-voltage bushing (6) is fixedly connected to the right side of the upper end of the outer shell (1), and the wiring terminals (7) are arranged on the front sides of the high-voltage bushing (5) and the low-voltage bushing (6), and there are a plurality of wiring terminals (7).

3. A double-core transformer with a high voltage range according to claim 1, characterized in that: Both sides of the upper surface of the outer shell (1) are fixedly connected with hanging rings (15), and the left end of the upper surface of the outer shell (1) is fixedly connected with a thermometer (16), and the thermometer (16) monitors the temperature of the transformer.

4. A double-core transformer with a high voltage range according to claim 1, characterized in that: The drive motor (13) is fixedly connected to the upper end of the outer shell (1), and the output end of the drive motor (13) is fixedly connected to a rotating rod (17), and the rotating rod (17) passes through the inner shell (9) and is fixedly connected to a driving bevel gear (18).

5. A double-core transformer with a high voltage range according to claim 4, characterized in that: Both sides of the driving bevel gear (18) are meshed with driven bevel gears (19), and the side of the driven bevel gear (19) away from the other side is fixedly connected to a rotating shaft (20), and the surface of the rotating shaft (20) is fixedly connected to the heat dissipation fan blade (14).

6. A double-core transformer with a high voltage range according to claim 5, characterized in that: A fixed rod (21) is fixedly connected to the bottom surface inside the inner shell (9), and rotating blocks (22) are rotatably connected to both sides of the upper end of the fixed rod (21), and one end of the rotating block (22) away from the fixed rod (21) is rotatably connected to the driven bevel gear (19).

7. A double-core transformer with a high voltage range according to claim 1, characterized in that: Both sides of the inner shell (9) and the bottom surface of the outer shell (1) are provided with ventilation openings, and the ventilation openings on both sides of the inner shell (9) are fixedly connected to filter screens (23).

8. A double-core transformer with a high voltage range according to claim 7, characterized in that: Both sides of the upper end of the outer shell (1) are fixedly connected to electric push rods (24), and the telescopic end of the electric push rod (24) is fixedly connected to a cleaning brush (25), and the cleaning brush (25) cleans the filter screen (23).

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