Combined transformer for photovoltaic power generation

Abstract

The present application relates to the technical field of combined transformer, in particular to a combined transformer for photovoltaic power generation, comprising a rack, a group of combinable transformer bodies are installed on the rack, a cyclone blowing module is installed on the bottom of each transformer body, an inner brush holder is rotatably sleeved on each transformer body, a spiral oil removal sheet matched with the transformer body is installed on the inner brush holder, a heat-conducting rotary cylinder is rotatably sleeved on the inner brush holder, the heat-conducting rotary cylinder is linked with the inner brush holder, and a group of turbulence fins are installed on the inner wall of the heat-conducting rotary cylinder. The present application has the beneficial effects that: through the rotation state setting of the inner brush holder, on the one hand, the adhesion and accumulation rate of the insulating oil on the transformer body can be effectively reduced, and the generation of the grease heat insulation layer outside the transformer body can be avoided, on the other hand, the insulating oil can be circulated and contacted with the transformer body, so that the high heat dissipation surface area of the transformer body can be maintained.

Description

Technical Field

[0001] This invention relates to the field of combined transformer technology, specifically a combined transformer for photovoltaic power generation. Background Technology

[0002] In the prior art, patent document CN118571603A discloses a dry-type transformer, including: a transformer body, which changes AC voltage using the principle of electromagnetic induction; a mounting frame for placing the transformer body; a base located at the bottom of the mounting frame; a first mounting plate located on the base; a bellows located on the first mounting plate; and a fan located inside the bellows. The bottom of the bellows is rotatably connected to the first mounting plate, and the bellows reciprocates on the first mounting plate when the fan is working. The above-mentioned transformer can remove dust from the transformer shell and improve the transformer cooling effect. However, the above-mentioned transformer is not conducive to increasing the agitation of the heat dissipation insulating oil inside the transformer and reducing the adhesion and accumulation rate of the insulating oil on the transformer body and the formation of the grease insulation layer on the outside of the transformer body when the transformer is working. On the other hand, the existing transformer is not conducive to reducing the dust accumulation rate of the heat dissipation structure and improving the ventilation efficiency of the heat dissipation structure and maintaining the high heat dissipation surface area of ​​the heat dissipation structure through the eccentric movement and reciprocating movement of the heat dissipation structure. Based on this, the present invention provides a combined transformer for photovoltaic power generation to solve the problems mentioned in the background art. Summary of the Invention

[0003] This invention addresses the technical problems existing in the prior art by providing a combined transformer for photovoltaic power generation. This solves the problems of existing transformers, which, on the one hand, are not conducive to increasing the agitation of the insulating oil inside the transformer during operation and reducing the adhesion and accumulation rate of the insulating oil on the transformer body, as well as the formation of the grease insulation layer on the outside of the transformer body; and on the other hand, are not conducive to reducing the dust accumulation rate of the heat dissipation structure, improving the ventilation efficiency of the heat dissipation structure, and maintaining the high heat dissipation surface area of ​​the heat dissipation structure through eccentric movement and reciprocating motion of the heat dissipation structure.

[0004] The technical solution of this invention to solve the above-mentioned technical problems is as follows: A combined transformer for photovoltaic power generation includes a frame, on which a set of combinable transformer bodies are mounted. A swirl blowing module is mounted at the bottom of each transformer body. An inner brush frame is rotatably fitted on each transformer body. A spiral oil-removing plate that fits against the transformer body is mounted on the inner brush frame. A heat-conducting swirl cylinder is rotatably fitted on the inner brush frame. The heat-conducting swirl cylinder is linked with the inner brush frame. A set of turbulence-inducing fins is mounted on the inner wall of the heat-conducting swirl cylinder, and a set of heat-dissipating fins is mounted on the outer periphery of the heat-conducting swirl cylinder. An oil storage chamber is provided between the cylinder and the transformer body. A fan frame is installed on the frame, and an oil outlet pipe and an oil return pipe are installed on the fan frame. Each oil storage chamber is connected to the oil outlet pipe and the oil return pipe. An active vibrating frame and a driven vibrating frame are slidably connected on the fan frame. A set of coil heat dissipation modules is installed between the active vibrating frame and the driven vibrating frame. Each coil heat dissipation module is connected to the oil outlet pipe and the oil return pipe. An axial flow fan is installed on the fan frame and directly opposite each coil heat dissipation module. A transmission component is installed on the fan frame to drive the active vibrating frame to reciprocate and to drive the inner brush frame to rotate.

[0005] The beneficial effects of this invention are: 1. In use, the invention utilizes a gear shaft, a central bevel gear, and two linked bevel gear rings to enable the heat-conducting rotary cylinder and the inner brush holder to rotate coaxially in opposite directions after the motor outputs its speed. This coaxial, opposite rotation of the heat-conducting rotary cylinder and the inner brush holder improves the agitation and uniformity of the insulating oil within the heat-conducting rotary cylinder. This increased agitation and uniformity effectively reduces the condensation rate of the insulating oil and allows the heat within the insulating oil to dissipate quickly through the heat-conducting rotary cylinder, thus achieving rapid heat conduction and dissipation. Simultaneously, the rotational state of the inner brush holder effectively reduces the adhesion and accumulation of insulating oil on the transformer body and prevents the formation of a grease insulation layer on the outside of the transformer body. Furthermore, it allows the insulating oil to circulate and renew its contact with the transformer body, thereby maintaining a high heat dissipation surface area for the transformer body.

[0006] 2. In this invention, when the transformer body is working, the motor's speed output is set, enabling the active and driven vibrating frames to reciprocate within a set stroke. After the active vibrating frame reciprocates, it drives the spiral heat exchange coil to reciprocate along the displacement direction of the active vibrating frame. This axial displacement of the spiral heat exchange coil cyclically changes the ventilation and heat dissipation angle and position of the axial flow fan on the spiral heat exchange coil. Simultaneously, during axial vibration, the spiral heat exchange coil can also undergo eccentric rotation at a set speed. This eccentric rotation of the spiral heat exchange coil... On the one hand, it can cyclically change the relative distance between the spiral heat exchange coil and the axial flow fan, thereby cyclically changing the heat dissipation intensity of the axial flow fan on the spiral heat exchange coil. On the other hand, through the eccentric spin of the spiral heat exchange coil, the spiral heat exchange coil can receive the axial flow cooling air blown by the axial flow fan evenly or in all directions. At the same time, through the synchronous occurrence of the eccentric spin of the spiral heat exchange coil and the reciprocating displacement of the axis, it can effectively reduce the scaling and dust accumulation rate on the surface of the spiral heat exchange coil, thereby maintaining the high heat dissipation performance of the spiral heat exchange coil, and thus maintaining the high heat dissipation performance of the transformer body during operation.

[0007] 3. In this invention, when the combined transformer is working, the air cooler blows air at a constant speed. After the air cooler blows air at a constant speed, it can effectively improve the ventilation efficiency and heat dissipation rate of the outer surface of the heat-conducting vortex. On the other hand, it can effectively prevent dust from adhering to the outer surface of the heat-conducting vortex and the heat dissipation fins through positive pressure, thereby maintaining the high heat dissipation surface area of ​​the heat-conducting vortex and the heat dissipation fins.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the transmission component includes a motor mounted on the fan frame, the output shaft of the motor being driven by a first toothed belt and a second toothed belt respectively, each of the heat-conducting rotary cylinders being driven by the first toothed belt, a camshaft being rotatably connected to the fan frame, bevel gears being mounted on both the output shaft of the motor and the camshaft, the two bevel gears meshing with each other, a cam block being mounted on the camshaft, and the cam block being in contact with the active vibrating frame.

[0010] The beneficial effects of adopting the above-mentioned further scheme are that when the combined transformer is working, the motor outputs speed at a set power. After the motor outputs speed, it drives the three heat-conducting rotary cylinders to rotate through the first toothed belt. Through the rotation of the three heat-conducting rotary cylinders, the three heat-conducting rotary cylinders can be evenly aligned with the air outlet of the axial flow fan, thereby effectively improving the heat dissipation efficiency and heat dissipation uniformity of the heat-conducting cylinders. Moreover, when the motor outputs speed, through the cooperation of the camshaft and the cam block, the active vibrating frame can reciprocate within the set stroke. The transformer body is a commonly used component in existing technology. The specific structure and working principle of the transformer body have been disclosed in existing documents and will not be repeated here.

[0011] Furthermore, both the heat-conducting swivel cylinder and the inner brush holder are equipped with linkage bevel gear rings, and a gear shaft is rotatably mounted on the device frame. An intermediate bevel gear is mounted on the gear shaft, and both linkage bevel gear rings are connected to the intermediate bevel gear in a transmission manner. The two linkage bevel gear rings are symmetrically arranged with the horizontal plane containing the axis of the intermediate bevel gear as the axis.

[0012] The beneficial effect of adopting the above-mentioned further solution is that, during use, the arrangement of the gear shaft, the intermediate bevel gear, and the two linkage bevel gear rings allows the heat-conducting rotary drum and the inner brush holder to rotate coaxially in opposite directions after the motor outputs its speed. The coaxial and opposite rotation of the heat-conducting rotary drum and the inner brush holder improves the agitation and uniformity of the insulating oil in the heat-conducting rotary drum. By improving the agitation and uniformity of the insulating oil, the condensation rate of the insulating oil can be effectively reduced, and the heat in the insulating oil can be quickly dissipated through the heat-conducting rotary drum, thereby achieving rapid heat conduction and heat dissipation of the insulating oil.

[0013] Meanwhile, by setting the rotation state of the inner brush holder, on the one hand, the adhesion and accumulation rate of insulating oil on the transformer body can be effectively reduced, and the formation of grease insulation layer on the outside of the transformer body can be avoided. On the other hand, the insulating oil can circulate and renew contact with the transformer body, thereby maintaining the high heat dissipation surface area of ​​the transformer body. Furthermore, an oil outlet ring and an oil return ring are rotatably connected to the heat-conducting rotary cylinder. The oil outlet ring is connected to the oil outlet pipe, and the oil return ring is connected to the oil return pipe. A set of oil holes distributed in a circular array are opened on the heat-conducting rotary cylinder at positions corresponding to the inner sides of the oil outlet ring and the oil return ring.

[0014] The beneficial effect of adopting the above-mentioned further scheme is that, by setting up the oil outlet ring and the oil return ring, the insulating oil can be circulated in the heat-conducting rotary cylinder and the spiral heat exchange coil. The effect of the insulating oil circulation is achieved to realize the circulating heat dissipation of the transformer body during operation.

[0015] Furthermore, the coil heat dissipation module includes a hollow shaft rotatably connected to the fan frame, the hollow shaft being connected to a second chain belt drive, a set of return springs installed between the active vibrating frame and the fan frame, an oil guide seat rotatably connected to the active vibrating frame, the oil guide seat being driven by the hollow shaft, an oil return seat rotatably installed on the inner wall of the driven vibrating frame, oil chambers being opened inside both the oil guide seat and the oil return seat, an oil outlet pipe communicating with the oil chamber inside the oil guide seat through the hollow shaft, an oil return pipe communicating with the oil chamber inside the oil return seat, an eccentric joint communicating with the oil chamber at the eccentric position of both the oil guide seat and the oil return seat, a spiral heat exchange coil rotatably connected between the two eccentric joints, a driven gear installed on the spiral heat exchange coil, a fixed gear ring installed on the fan frame, and the driven gear being drively connected to the fixed gear ring.

[0016] Furthermore, a bushing is fixedly installed at the axial position of the oil guide seat. The bushing has a shaft groove with openings at both ends and slidably connected to the hollow shaft. The cross-sections of the shaft groove and the hollow shaft are both regular polygons. An oil passage with openings at both ends is fixedly installed inside the hollow shaft. The two ends of the oil passage are respectively connected to the oil chamber and the oil outlet pipe at the corresponding positions.

[0017] Furthermore, the tooth length of the fixed gear ring is 6 to 8 times the tooth length of the driven gear. The oil guide seat, turbulence fins, heat dissipation fins, inner brush holder, and spiral oil removal plate are all made of ceramic material. The inner brush holder includes two brush rings, and a set of connecting rods arranged in a circumferential array are installed between the two brush rings.

[0018] The beneficial effect of adopting the above-mentioned further solution is that, when the transformer body is working, the speed output of the motor is set so that the active and driven vibrating frames can reciprocate within a set stroke. After the active vibrating frame reciprocates, it drives the spiral heat exchange coil to reciprocate along the displacement direction of the active vibrating frame. Through the axial displacement of the spiral heat exchange coil, the ventilation and heat dissipation angle and position of the axial flow fan on the spiral heat exchange coil are cyclically changed. At the same time, during the axial vibration, the spiral heat exchange coil can also undergo eccentric self-rotation at a set speed. The eccentric rotation of the spiral heat exchange coil can, on the one hand, cyclically change the relative distance between the spiral heat exchange coil and the axial flow fan, thereby cyclically changing the heat dissipation intensity of the axial flow fan on the spiral heat exchange coil. On the other hand, through the eccentric rotation of the spiral heat exchange coil, the spiral heat exchange coil can receive the axial flow cooling air blown by the axial flow fan evenly or in all directions. At the same time, through the synchronous occurrence of the eccentric rotation of the spiral heat exchange coil and the reciprocating displacement of the axis, the scaling and dust accumulation rate on the surface of the spiral heat exchange coil can be effectively reduced, thereby maintaining the high heat dissipation performance of the spiral heat exchange coil, and thus maintaining the high heat dissipation performance of the transformer body during operation.

[0019] Furthermore, the swirl blower module includes a blower ring cavity formed at the lower part of the oil guide swirl seat. A set of blower nozzles arranged in a circular array are installed on the oil guide swirl seat and at a position corresponding to the lower part of the heat dissipation fins. The air outlet axis of the blower nozzles is parallel to the axis of the oil guide swirl seat. An air distribution ring is rotatably connected to the blower ring cavity. A cooler is installed on the frame. A filter is installed at the air inlet port of the cooler. The air outlet port of the cooler is connected to the air distribution ring through a pipe.

[0020] The beneficial effects of adopting the above-mentioned further solution are that when the combined transformer is working, the air cooler blows air at a constant speed. After the air cooler blows air at a constant speed, it can effectively improve the ventilation efficiency and heat dissipation rate of the outer surface of the heat-conducting vortex. On the other hand, it can effectively prevent dust from adhering to the outer surface of the heat-conducting vortex and the heat dissipation fins through positive pressure, thereby maintaining the high heat dissipation surface area of ​​the heat-conducting vortex and the heat dissipation fins.

[0021] Furthermore, an oil pump and a temperature sensor are respectively installed on the oil return pipe, and a microcontroller is installed on the fan frame. The data terminals of the oil pump and the temperature sensor are both connected to the microcontroller.

[0022] The beneficial effect of adopting the above-mentioned further solution is that by setting the temperature measurement structure of the temperature sensor, the circulation speed of the insulating oil can be controlled, thereby maintaining the constant temperature effect of the insulating oil.

[0023] Furthermore, it also includes three high-voltage connecting rods, and the number of transformer bodies is three. Each high-voltage connecting rod is connected to two transformer bodies at a corresponding position. Iron yokes that cooperate with the three transformer bodies are installed on the frame. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a combined transformer for photovoltaic power generation according to the present invention; Figure 2 For the present invention Figure 1 A magnified schematic diagram of the local structure at point A; Figure 3 For the present invention Figure 1 A structural diagram from another angle; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the local structure at point B; Figure 5 For the present invention Figure 3 A magnified schematic diagram of the local structure at point C; Figure 6 This is a schematic cross-sectional view of the transformer body of the present invention; Figure 7 For the present invention Figure 6 A magnified schematic diagram of the local structure at point D; Figure 8 This is a schematic cross-sectional view of the spiral heat exchanger plate of the present invention. Figure 9 For the present invention Figure 8 A magnified schematic diagram of the local structure at point E; Figure 10 This is a schematic diagram of the internal brush holder of the present invention.

[0025] The attached diagram lists the components represented by each number as follows: 1. Transformer frame; 2. Transformer body; 3. Inner brush frame; 4. Spiral oil separator; 5. Heat-conducting vortex; 6. Turbulence fins; 7. Heat dissipation fins; 8. Fan frame; 9. Oil outlet pipe; 10. Oil return pipe; 11. Active vibrating frame; 12. Driven vibrating frame; 13. Axial flow fan; 14. Motor; 15. Camshaft; 16. Cam block; 17. Gear shaft; 18. Oil outlet ring; 19. Oil return ring; 20. 21. Oil hole; 22. Hollow shaft; 23. Return spring; 24. Oil guide seat; 25. Oil return seat; 26. Oil chamber; 27. Eccentric joint; 28. Spiral heat exchange coil; 29. ​​Driven gear; 30. Fixed gear ring; 31. Bushing; 32. Air blowing ring cavity; 33. Air blowing nozzle; 34. Air cooler; 35. Temperature sensor; 36. High-pressure connecting rod; 37. Iron yoke. Detailed Implementation

[0026] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0027] The present invention provides the following preferred embodiments. like Figure 1-10 As shown, a combined transformer for photovoltaic power generation includes a frame 1, on which a set of combinable transformer bodies 2 are installed. The transformer body 2 is a commonly used component in the prior art. The specific structure and working principle of the transformer body 2 have been disclosed in existing documents and will not be repeated here.

[0028] It also includes three high-voltage connecting rods 36, and the number of transformer bodies 2 is three. Each high-voltage connecting rod 36 is connected to two transformer bodies 2 at the corresponding position. Iron yokes 37 that cooperate with the three transformer bodies 2 are installed on the frame 1. Each transformer body 2 is equipped with a swirling blower module at the bottom, and each transformer body 2 is rotatably fitted with an inner brush frame 3, on which a spiral oil removal plate 4 that fits into the transformer body 2 is installed. The inner brush holder 3 includes two brush rings, and a set of connecting rods arranged in a circular array are installed between the two brush rings; A heat-conducting rotary cylinder 5 is rotatably mounted on the inner brush holder 3, and the heat-conducting rotary cylinder 5 is linked with the inner brush holder 3. Both the heat-conducting swivel cylinder 5 and the inner brush holder 3 are equipped with linkage bevel gear rings. A gear shaft 17 is rotatably mounted on the frame 1. An intermediate bevel gear is mounted on the gear shaft 17. Both linkage bevel gear rings are connected to the intermediate bevel gear in a transmission manner. The two linkage bevel gear rings are symmetrically arranged with the horizontal plane containing the axis of the intermediate bevel gear as the axis. A set of turbulence fins 6 are installed on the inner wall of the heat-conducting swirl cylinder 5, and a set of heat dissipation fins 7 are installed on the outer periphery of the heat-conducting swirl cylinder 5. An oil storage chamber is provided between the heat-conducting rotary cylinder 5 and the transformer body 2, and the interior of the oil storage chamber is filled with insulating oil. A fan frame 8 is installed on the device frame 1, and an oil outlet pipe 9 and an oil return pipe 10 are installed on the fan frame 8. Each oil storage chamber is connected to the oil outlet pipe 9 and the oil return pipe 10. An oil pump and a temperature sensor 35 are installed on the oil return pipe 10, and a microcontroller is installed on the fan frame 8. The data terminals of the oil pump and the temperature sensor 35 are connected to the microcontroller.

[0029] The temperature sensor 35 is used to control the circulation speed of the insulating oil, thereby maintaining the constant temperature of the insulating oil.

[0030] In use, the arrangement of the gear shaft 17, the intermediate bevel gear, and the two linkage bevel gear rings enables the heat-conducting rotary cylinder 5 and the inner brush holder 3 to rotate coaxially in opposite directions after the motor 14 outputs its speed. This coaxial counter-rotation of the heat-conducting rotary cylinder 5 and the inner brush holder 3 improves the agitation and uniformity of the insulating oil within the heat-conducting rotary cylinder 5. By improving the agitation and uniformity of the insulating oil, the condensation rate of the insulating oil can be effectively reduced, and the heat within the insulating oil can be quickly dissipated through the heat-conducting rotary cylinder 5, thereby achieving rapid heat conduction and heat dissipation of the insulating oil.

[0031] Meanwhile, by setting the rotation state of the inner brush holder 3, on the one hand, the adhesion and accumulation rate of insulating oil on the transformer body 2 can be effectively reduced, and the formation of grease insulation layer on the outside of the transformer body 2 can be avoided. On the other hand, the insulating oil can circulate and renew contact with the transformer body 2, thereby maintaining the high heat dissipation surface area of ​​the transformer body 2. An active vibrating frame 11 and a driven vibrating frame 12 are slidably connected on the fan frame 8. A set of coil heat dissipation modules are installed between the active vibrating frame 11 and the driven vibrating frame 12. Each coil heat dissipation module is connected to the oil outlet pipe 9 and the oil return pipe 10. An axial flow fan 13 is installed on the fan frame 8 and directly opposite each coil heat dissipation module. A transmission component is installed on the fan frame 8 to drive the active vibrating frame 11 to reciprocate and to drive the inner brush frame 3 to rotate.

[0032] The transmission components include a motor 14 mounted on the fan frame 8. The output shaft of the motor 14 is connected to a first toothed belt and a second toothed belt respectively. Each heat-conducting swivel cylinder 5 is connected to the first toothed belt. A camshaft 15 is rotatably connected to the fan frame 8. Bevel gears are mounted on the output shaft of the motor 14 and the camshaft 15. The two bevel gears mesh with each other. A cam block 16 is mounted on the camshaft 15. The cam block 16 is in contact with the active vibrating frame 11.

[0033] When the combined transformer is working, the motor 14 outputs a speed at a set power. After the motor 14 outputs a speed, it drives the three heat-conducting rotary cylinders 5 to rotate through the first toothed belt. The rotation of the three heat-conducting rotary cylinders 5 enables them to be evenly aligned with the air outlet of the axial flow fan 13, thereby effectively improving the heat dissipation efficiency and heat dissipation uniformity of the heat-conducting cylinders. When the motor 14 outputs a speed, the cooperation between the camshaft 15 and the cam block 16 enables the active vibrating frame 11 to reciprocate within a set stroke. An oil outlet ring 18 and an oil return ring 19 are rotatably connected to the heat-conducting rotary cylinder 5. The oil outlet ring 18 is connected to the oil outlet pipe 9, and the oil return ring 19 is connected to the oil return pipe 10. A set of oil holes 20 distributed in a circular array are opened on the heat-conducting rotary cylinder 5 at positions corresponding to the inner sides of the oil outlet ring 18 and the oil return ring 19.

[0034] By setting up the oil outlet ring 18 and the oil return ring 19, the insulating oil is circulated within the heat-conducting rotary cylinder 5 and the spiral heat exchange coil 27. The circulation of the insulating oil is achieved to dissipate heat during the operation of the transformer body 2.

[0035] The coil cooling module includes a hollow shaft 21 rotatably connected to the fan frame 8. The hollow shaft 21 is connected to the second chain belt drive. A set of return springs 22 is installed between the active vibrating frame 11 and the fan frame 8. An oil guide seat 23 is rotatably connected to the active vibrating frame 11. The oil guide seat 23 is driven by the hollow shaft 21. A bushing 30 is fixedly installed at the axial position of the oil guide seat 23. The bushing 30 has a shaft groove with openings at both ends and sliding connection with the hollow shaft 21. The cross-sections of the shaft groove and the hollow shaft 21 are both regular polygons. The oil return seat 24 is rotatably installed on the inner wall of the driven vibrating frame 12. Both the oil guide seat 23 and the oil return seat 24 have oil chambers 25 inside. The oil outlet pipe 9 is connected to the oil chamber 25 inside the oil guide seat 23 through the hollow shaft 21. The hollow shaft 21 has an oil passage with openings at both ends, and the two ends of the oil passage are connected to the oil chamber 25 and the oil outlet pipe 9 at the corresponding positions, respectively. The return oil pipe 10 is connected to the oil chamber 25 inside the return oil rotary seat 24. The eccentric positions of the guide oil rotary seat 23 and the return oil rotary seat 24 are provided with eccentric joints 26 that are connected to the oil chamber 25. The two eccentric joints 26 are rotatably connected by a spiral heat exchange coil 27. A driven gear 28 is installed on the spiral heat exchange coil 27. A fixed gear ring 29 is installed on the fan frame 8. The driven gear 28 and the fixed gear ring 29 are connected in a transmission.

[0036] The tooth length of the fixed gear ring 29 is 7 times the tooth length of the driven gear 28. The oil guide seat 23, the turbulence fin 6, the heat dissipation fin 7, the inner brush holder 3, and the spiral oil removal plate 4 are all made of ceramic material.

[0037] When the transformer body 2 is working, the speed output of the motor 14 is set, so that the active vibrating frame 11 and the driven vibrating frame 12 can reciprocate within a set stroke. After the active vibrating frame 11 reciprocates, it drives the spiral heat exchange coil 27 to reciprocate along the displacement direction of the active vibrating frame 11. Through the axial displacement of the spiral heat exchange coil 27, the ventilation and heat dissipation angle and position of the axial flow fan 13 on the spiral heat exchange coil 27 are changed cyclically. At the same time, the spiral heat exchange coil 27 can also undergo eccentric self-rotation at a set speed during axial vibration. Through the eccentric self-rotation of the spiral heat exchange coil 27, on the one hand... The relative distance between the spiral heat exchange coil 27 and the axial fan 13 can be cyclically changed, thereby cyclically changing the heat dissipation intensity of the axial fan 13 on the spiral heat exchange coil 27. On the other hand, through the eccentric spin of the spiral heat exchange coil 27, the spiral heat exchange coil 27 can receive the axial flow cooling air from the axial fan 13 evenly or in all directions. At the same time, through the synchronous occurrence of the eccentric spin of the spiral heat exchange coil 27 and the reciprocating displacement of the axis, the scaling and dust accumulation rate on the surface of the spiral heat exchange coil 27 can be effectively reduced, thereby maintaining the high heat dissipation performance of the spiral heat exchange coil 27, thus ensuring the high heat dissipation performance of the transformer body 2 during operation.

[0038] The swirl blower module includes a blower ring cavity 31 located at the lower part of the oil guide swirl seat 23. A set of blower nozzles 32 arranged in a circular array are installed on the oil guide swirl seat 23 at a position corresponding to the lower part of the heat sink fins 7. The air outlet axis of the blower nozzles 32 is parallel to the axis of the oil guide swirl seat 23. A distribution ring 33 is rotatably connected to the blower ring cavity 31. A cooler 34 is installed on the frame 1. A filter is installed at the air inlet port of the cooler 34. The air outlet port of the cooler 34 is connected to the distribution ring 33 through a pipe.

[0039] When the combined transformer is working, the air cooler 34 blows air at a constant speed. After the air cooler 34 blows air at a constant speed, it can effectively improve the ventilation efficiency and heat dissipation rate of the outer surface of the heat-conducting vortex cylinder 5. On the other hand, it can effectively prevent dust from adhering to the outer surface of the heat-conducting vortex cylinder 5 and the heat dissipation fins 7 through positive pressure, thereby maintaining the high heat dissipation surface area of ​​the heat-conducting vortex cylinder 5 and the heat dissipation fins 7.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A combined transformer for photovoltaic power generation, comprising a frame on which a set of combinable transformer bodies are mounted, characterized in that, Each transformer body has a swirling air blowing module installed at its bottom. Each transformer body has an inner brush frame rotatably mounted on it. The inner brush frame has spiral oil-removing plates that fit snugly against the transformer body. A heat-conducting cylinder is rotatably mounted on the inner brush frame, and the heat-conducting cylinder is linked to the inner brush frame. A set of turbulence-inducing fins is installed on the inner wall of the heat-conducting cylinder, and a set of heat-dissipating fins is installed on its outer periphery. An oil storage chamber is provided between the heat-conducting cylinder and the transformer body. A fan frame is mounted on the transformer frame. An oil outlet pipe and an oil return pipe are installed on the fan frame. Each oil storage chamber is connected to the oil outlet pipe and the oil return pipe. An active vibrating frame and a driven vibrating frame are slidably connected on the fan frame. A set of coil heat dissipation modules are installed between the active vibrating frame and the driven vibrating frame. Each coil heat dissipation module is connected to the oil outlet pipe and the oil return pipe. An axial flow fan is installed on the fan frame and directly opposite each coil heat dissipation module. A transmission component is installed on the fan frame to drive the active vibrating frame to reciprocate and to drive the inner brush frame to rotate. The transmission component includes a motor mounted on a fan frame. The output shaft of the motor is connected to a first toothed belt and a second toothed belt. Each heat-conducting rotary cylinder is connected to the first toothed belt. A camshaft is rotatably connected to the fan frame. Bevel gears are mounted on both the output shaft of the motor and the camshaft. The two bevel gears mesh with each other. A cam block is mounted on the camshaft. The cam block is in contact with the active vibrating frame. Both the heat-conducting swivel cylinder and the inner brush holder are equipped with linkage bevel gear rings. A gear shaft is rotatably mounted on the device frame. An intermediate bevel gear is mounted on the gear shaft. Both linkage bevel gear rings are connected to the intermediate bevel gear in a transmission manner. The two linkage bevel gear rings are symmetrically arranged with the horizontal plane containing the axis of the intermediate bevel gear as the axis. The coil cooling module includes a hollow shaft rotatably connected to the fan frame, the hollow shaft being connected to a second chain belt drive, a set of return springs installed between the active vibrating frame and the fan frame, an oil guide seat rotatably connected to the active vibrating frame, the oil guide seat being driven by the hollow shaft, and an oil return seat rotatably installed on the inner wall of the driven vibrating frame. Both the oil guide seat and the oil return seat have oil chambers inside. The oil outlet pipe communicates with the oil chamber in the oil guide seat through the hollow shaft, and the oil return pipe communicates with the oil chamber in the oil return seat. Both the oil guide seat and the oil return seat have eccentric joints at their eccentric positions that communicate with the oil chambers. A spiral heat exchange coil is rotatably connected between the components. A driven gear is installed on the spiral heat exchange coil, and a fixed gear ring is installed on the fan frame. The driven gear and the fixed gear ring are connected in a driving connection. The swirl blowing module includes a blowing ring cavity opened at the lower part of the oil guide swirl seat. A set of blowing nozzles arranged in a circumferential array is installed on the oil guide swirl seat and at a position corresponding to the lower part of the heat dissipation fins. The air outlet axis of the blowing nozzles is parallel to the axis of the oil guide swirl seat. An air distribution ring is rotatably connected to the blowing ring cavity. A cooler is installed on the frame. A filter is installed at the air inlet port of the cooler. The air outlet port of the cooler is connected to the air distribution ring through a pipe.

2. A combined transformer for photovoltaic power generation according to claim 1, characterized in that, The heat-conducting rotary cylinder is rotatably connected to an oil outlet ring and an oil return ring. The oil outlet ring is connected to an oil outlet pipe, and the oil return ring is connected to an oil return pipe. A set of oil holes distributed in a circular array are opened on the heat-conducting rotary cylinder at positions corresponding to the inner sides of the oil outlet ring and the oil return ring.

3. A combined transformer for photovoltaic power generation according to claim 2, characterized in that, A bushing is fixedly installed at the axial position of the oil guide seat. The bushing has a shaft groove with openings at both ends and slidingly connected to the hollow shaft. The cross-sections of the shaft groove and the hollow shaft are both regular polygons. An oil passage with openings at both ends is fixedly installed inside the hollow shaft. The two ends of the oil passage are respectively connected to the oil chamber and the oil outlet pipe at the corresponding positions.

4. A combined transformer for photovoltaic power generation according to claim 3, characterized in that, The tooth length of the fixed gear ring is 6 to 8 times the tooth length of the driven gear. The oil guide seat, turbulence fins, heat dissipation fins, inner brush holder and spiral oil removal plate are all made of ceramic material. The inner brush holder includes two brush rings, and a set of connecting rods distributed in a circumferential array are installed between the two brush rings.

5. A combined transformer for photovoltaic power generation according to claim 4, characterized in that, An oil pump and a temperature sensor are installed on the oil return pipe, and a microcontroller is installed on the fan frame. The data terminals of the oil pump and the temperature sensor are both connected to the microcontroller.

6. A combined transformer for photovoltaic power generation according to claim 5, characterized in that, It also includes three high-voltage connecting rods, and the number of transformer bodies is three. Each high-voltage connecting rod is connected to two transformer bodies at a corresponding position. Iron yokes that cooperate with the three transformer bodies are installed on the frame.

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