Oil-immersed environment-friendly on-load voltage regulation power transformer

Abstract

The utility model relates to the technical field of power transformers, in particular to an oil-immersed environment-friendly on-load voltage regulation power transformer which comprises a base, a transformer body and idler wheels, the idler wheels are arranged at the lower end of the base, the transformer body is arranged at the upper end of the base, and a heat dissipation structure is arranged at the upper end of the base. When the device is used, the transformer body generates a large amount of heat, at the moment, the heat generated by the transformer body is absorbed and dissipated through the fins, then the refrigeration pieces are powered on, the inner sides of the refrigeration pieces transmit the heat in the heat dissipation box to the other sides of the refrigeration pieces, and cold and hot ends are formed on the inner sides and the outer sides of the refrigeration pieces; at the moment, a cooling fan is turned on, the cooling fan blows air to the interior of the cooling box, cold air in the cooling box blows box fins from air outlet holes in the upper portion of the cooling box, cooling of the fins is accelerated, and therefore the cooling efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power transformers, in particular to an oil-immersed environmentally friendly on-load voltage-regulating power transformer. Background Art

[0002] The oil-immersed on-load voltage-regulating power transformer works on the principle of electromagnetic induction, and electromagnetic induction mainly uses electromagnetic mutual induction to transform voltage, current and impedance. Therefore, it is necessary to set up an oil-immersed environmentally friendly on-load voltage-regulating power transformer to meet the existing market demand. However, the existing device still has certain use defects when in use, such as:

[0003] Patent No. "CN201921288006.8" discloses an oil-immersed on-load voltage-regulating power transformer. When in use, the device can cool the oil pipeline through the water outlet pipe to achieve single heat dissipation of the box body, double heat dissipation can be achieved through the metal sheet, and triple heat dissipation of the box body by the cooling fan, with good heat dissipation effect. However, when the device is in use, it is impossible to move the device conveniently and quickly, resulting in the need to dismantle and lift the power transformer to move the device after it is installed and fixed, which reduces the practicability of the device. Utility Model Content

[0004] The utility model aims to solve the above problems and proposes an oil-immersed environmentally friendly on-load voltage-regulating power transformer, which improves the problem that the existing oil-immersed environmentally friendly on-load voltage-regulating power transformer is inconvenient to move.

[0005] An oil-immersed environmentally friendly on-load voltage-regulating power transformer comprises a base, a transformer body and a roller: the lower end of the base is provided with a roller, the upper end of the base is provided with a transformer body, and the upper end of the base is provided with a heat dissipation structure;

[0006] The heat dissipation structure comprises a heat dissipation box, a cooling fin and a heat dissipation fan. The heat dissipation box is arranged at the upper end of the base, the heat dissipation fan is arranged on the side of the heat dissipation box, and the cooling fin is arranged on the side of the heat dissipation box.

[0007] Preferably, the cooling fins penetrate the heat sink, and a support rod is provided on the side of the base.

[0008] Preferably, a fixing block is provided on the side of the handrail, a fixing screw is provided on the side of the fixing block, the fixing screw passes through the fixing block, a nut is provided on the surface of the fixing screw, and the fixing screw is threadedly connected to the nut.

[0009] Preferably, a limit block is provided on the side of the transformer body, the fixing screw passes through the limit block, and a support frame is provided on the side of the transformer body.

[0010] Preferably, an oil storage tank is provided at the upper end of the support frame, and an oil inlet is provided on the side of the oil storage tank.

[0011] Preferably, an oil inlet pipe is provided on the side of the oil storage tank, and the oil inlet pipe is connected to the transformer body. An oil pump is provided on the side of the transformer body, and a return pipe is provided at the upper end of the oil pump, and the return pipe is connected to the oil storage tank.

[0012] Preferably, a clamping plate is provided at the upper end of the base, and the clamping plate is embedded and installed in the lower end of the transformer body, and fins are provided on the side surfaces of the transformer body.

[0013] Preferably, a fixing plate is provided at the lower end of the transformer body, a fixing bolt is provided at the upper end of the fixing plate, the fixing bolt passes through the fixing plate, and the fixing bolt is threadedly connected to the base.

[0014] The beneficial effects of the utility model are:

[0015] 1. Through the arrangement of the base, rollers and handrails, when the device is in use, since the rollers have a locking function, when the device needs to stop moving, it is only necessary to open the locking function of the rollers to stop the base from moving. When the device needs to be moved and changed to a different position, the locking of the rollers is closed, and then the handrails are pushed to make the handrails push the base through the rotation of the rollers, so as to move the device, thereby improving the convenience of the device, so as to achieve the purpose of moving the device conveniently and quickly, and improving the practicality of the device;

[0016] 2. Through the arrangement of cooling sheets, fins, heat sinks and cooling fans, when the device is in use, the transformer body generates a large amount of heat. At this time, the heat generated by the transformer body is absorbed and dissipated through the fins. Subsequently, the cooling sheets are energized to allow the inner side of the cooling sheets to transfer the heat inside the heat sink to the other side, so that the inner and outer sides of the cooling sheets form hot and cold ends to dissipate the heat inside the heat sink. At this time, the cooling fan is turned on to blow air into the heat sink, and the cold air inside the heat sink is blown onto the fins from the air outlet above the heat sink to accelerate the heat dissipation of the fins, thereby improving the heat dissipation efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall front-view stereoscopic structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the support frame and the oil storage tank installed in the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the heat dissipation box and the heat dissipation fan installation of the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the base and roller installation of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing screw and nut installation of the utility model.

[0022] In the figure: 1. base; 2. roller; 3. support rod; 4. transformer body; 5. fixing block; 6. limit block; 7. fixing screw; 8. support frame; 9. oil storage tank; 10. oil inlet pipe; 11. oil inlet; 12. fin; 13. nut; 14. oil pump; 15. return pipe; 16. clamping plate; 17. fixing plate; 18. fixing bolt; 19. heat sink; 20. cooling plate; 21. cooling fan; 22. heat dissipation structure. DETAILED DESCRIPTION

[0023] 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.

[0024] When implementing: Figure 1-5 As shown, an oil-immersed environmentally friendly on-load voltage-regulating power transformer comprises a base 1, a transformer body 4 and a roller 2: the roller 2 is arranged at the lower end of the base 1, the transformer body 4 is arranged at the upper end of the base 1, and the heat dissipation structure 22 is arranged at the upper end of the base 1;

[0025] The heat dissipation structure 22 includes a heat dissipation box 19, a cooling fin 20 and a heat dissipation fan 21. The heat dissipation box 19 is disposed at the upper end of the base 1, the heat dissipation fan 21 is disposed on the side of the heat dissipation box 19, and the cooling fin 20 is disposed on the side of the heat dissipation box 19;

[0026] When the device is in use, first connect the cooling plate 20 to direct current. Since the cooling plate 20 is made of semiconductor material, the Peltier effect of the semiconductor material is utilized. When direct current passes through a couple formed by two different semiconductor materials connected in series, heat can be absorbed and released at both ends of the couple respectively, thereby achieving the purpose of refrigeration. At this time, the cooling plate 20 absorbs heat from the inside of the heat sink 19 and releases heat from the outside to cool the inside of the heat sink 19. Subsequently, when the transformer body 4 generates heat during operation, the heat is absorbed by the fins 12. At this time, the cooling fan 21 is turned on to blow air into the inside of the heat sink 19 to blow the cold air inside the heat sink 19 to the fins 12 through the air vents above the heat sink 19, thereby accelerating the heat dissipation efficiency of the fins 12, thereby accelerating the heat dissipation efficiency of the entire device.

[0027] The cooling fins 20 penetrate the heat dissipation box 19, and a support bar 3 is provided on the side of the base 1;

[0028] A fixing block 5 is disposed on the side of the handrail 3, a fixing screw 7 is disposed on the side of the fixing block 5, the fixing screw 7 penetrates the fixing block 5, a nut 13 is disposed on the surface of the fixing screw 7, and the fixing screw 7 is threadedly connected to the nut 13;

[0029] When the device is in use, the roller 2 is unlocked, and then the handle 3 is pushed, so that the handle 3 pushes the base 1 to move through the rotation of the roller 2. When it moves to a desired position, the roller 2 is locked to stop the device from moving and fix it.

[0030] A limit block 6 is provided on the side of the transformer body 4, a fixing screw 7 passes through the limit block 6, and a support frame 8 is provided on the side of the transformer body 4;

[0031] When the device is in use and the transformer body 4 needs to be fixed, the limit block 6 is engaged into the interior of the fixing block 5, and then the fixing screw 7 is inserted into the interior of the fixing block 5 and passes through the limit block 6, and then the nut 13 is screwed onto the surface of the fixing screw 7 to fix the limit block 6 and the transformer body 4.

[0032] An oil storage tank 9 is provided at the upper end of the support frame 8, and an oil inlet 11 is provided on the side of the oil storage tank 9;

[0033] When the device is in use, oil is injected into the oil storage tank 9 through the oil inlet 11 to fill the oil storage tank 9.

[0034] An oil inlet pipe 10 is provided on the side of the oil storage tank 9, and the oil inlet pipe 10 is connected to the transformer body 4. An oil pump 14 is provided on the side of the transformer body 4, and a return pipe 15 is provided on the upper end of the oil pump 14, and the return pipe 15 is connected to the oil storage tank 9;

[0035] When the device is in use, the oil in the oil storage tank 9 passes through the oil inlet pipe 10 and enters the interior of the transformer body 4, so as to insulate and dissipate heat for the transformer body 4 and prevent faults such as electric shock and arc discharge. Subsequently, the oil pump 14 is turned on to pump the oil heated by heat dissipation in the transformer body 4 back into the return pipe 15 and into the oil storage tank 9, so as to squeeze the spare oil cooling in the oil storage tank 9 back into the oil inlet pipe 10, so that the oil can be recycled.

[0036] The upper end of the base 1 is provided with a clamping plate 16, which is embedded and installed at the lower end of the transformer body 4, and the side of the transformer body 4 is provided with fins 12;

[0037] A fixing plate 17 is disposed at the lower end of the transformer body 4, and a fixing bolt 18 is disposed at the upper end of the fixing plate 17. The fixing bolt 18 penetrates the fixing plate 17, and the fixing bolt 18 is threadedly connected to the base 1;

[0038] When the device is in use, the clamping plate 16 is at the bottom of the transformer body 4 to prevent the transformer body 4 from shaking during movement. The fixing bolt 18 is screwed into the inside of the base 1 and penetrates the fixing plate 17 to fix the transformer body 4.

[0039] When the utility model is in use, the transformer body 4 is firstly hung above the base 1, so that the clamping plate 16 is clamped on the bottom end of the transformer body 4, and the limit block 6 is inserted into the interior of the fixing block 5, and then the fixing bolt 18 is screwed into the interior of the base 1 and penetrates the fixing plate 17, and then the fixing screw 7 is inserted into the interior of the fixing block 5 and penetrates the limit block 6, and then the nut 13 is screwed onto the surface of the fixing screw 7, so as to fix the transformer body 4, and then oil is injected into the oil storage tank 9, and oil is allowed to enter the interior of the transformer body 4 through the oil inlet pipe 10, so as to fix the transformer body 4. Insulation and heat dissipation are performed, and then the lock of the roller 2 is opened, and the support rod 3 is pushed to push the transformer body 4 to the required position, and then the roller 2 is locked to stop and fix the device at the required position, and then the transformer body 4 is connected to the external wires to start the operation of the transformer body 4. At this time, the refrigeration plate 20 is connected to direct current, and the cooling fan 21 is turned on to allow the fins 12 to absorb the heat generated by the operation of the transformer body 4, and the cooling fan 21 is used to blow the cold air inside the heat dissipation box 19 upward to dissipate the heat of the fins 12, thereby improving the heat dissipation efficiency of the device.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An oil-immersed environmentally friendly on-load voltage-regulating power transformer, characterized in that: It comprises a base (1), a transformer body (4) and a roller (2): the roller (2) is arranged at the lower end of the base (1), the transformer body (4) is arranged at the upper end of the base (1), and the heat dissipation structure (22) is arranged at the upper end of the base (1); The heat dissipation structure (22) comprises a heat dissipation box (19), a cooling fin (20) and a heat dissipation fan (21); the heat dissipation box (19) is arranged at the upper end of the base (1); the heat dissipation fan (21) is arranged on the side of the heat dissipation box (19); and the cooling fin (20) is arranged on the side of the heat dissipation box (19).

2. The oil-immersed environmentally friendly on-load voltage-changing power transformer according to claim 1, characterized in that: The cooling fins (20) penetrate the heat dissipation box (19), and a support rod (3) is provided on the side of the base (1).

3. The oil-immersed environmentally friendly on-load voltage-changing power transformer according to claim 2 is characterized in that: A fixing block (5) is arranged on the side of the support rod (3), a fixing screw (7) is arranged on the side of the fixing block (5), the fixing screw (7) passes through the fixing block (5), a nut (13) is arranged on the surface of the fixing screw (7), and the fixing screw (7) is threadedly connected to the nut (13).

4. The oil-immersed environmentally friendly on-load voltage-changing power transformer according to claim 3 is characterized in that: A limit block (6) is arranged on the side of the transformer body (4), the fixing screw (7) passes through the limit block (6), and a support frame (8) is arranged on the side of the transformer body (4).

5. The oil-immersed environmentally friendly on-load voltage-changing power transformer according to claim 4, characterized in that: An oil storage tank (9) is arranged at the upper end of the support frame (8), and an oil inlet (11) is arranged on the side of the oil storage tank (9).

6. The oil-immersed environmentally friendly on-load voltage-changing power transformer according to claim 5, characterized in that: An oil inlet pipe (10) is arranged on the side of the oil storage tank (9), and the oil inlet pipe (10) is connected to the transformer body (4). An oil pump (14) is arranged on the side of the transformer body (4), and a return pipe (15) is arranged at the upper end of the oil pump (14), and the return pipe (15) is connected to the oil storage tank (9).

7. The oil-immersed environmentally friendly on-load voltage-changing power transformer according to claim 1, characterized in that: The upper end of the base (1) is provided with a snap-fit ​​plate (16), and the snap-fit ​​plate (16) is embedded and installed in the lower end of the transformer body (4), and the side surface of the transformer body (4) is provided with fins (12).

8. The oil-immersed environmentally friendly on-load voltage-changing power transformer according to claim 1, characterized in that: A fixing plate (17) is provided at the lower end of the transformer body (4), a fixing bolt (18) is provided at the upper end of the fixing plate (17), the fixing bolt (18) passes through the fixing plate (17), and the fixing bolt (18) is threadedly connected to the base (1).

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