Energy-saving photovoltaic boosting box transformer device and intelligent terminal thereof

Abstract

The invention belongs to the technical field of transformer equipment, and particularly relates to an energy-saving photovoltaic boosting box transformer device and an intelligent terminal thereof, and the energy-saving photovoltaic boosting box transformer device comprises a box-type main body, an oil immersed transformer and an oil conservator main body installed on the oil immersed transformer; the oil conservator further comprises an oil control mechanism installed in the oil conservator body, the oil control mechanism is arranged, flowing of transformer oil is controlled, so that hot transformer oil containing many impurities in an oil immersed transformer enters from the bottom of the oil storage cavity, and the transformer oil standing for a long time in the oil storage cavity is jacked up; when the transformer oil flows back, the transformer oil begins to flow back from the top end of the oil storage cavity, on one hand, the probability that settled oil dirt flows back to the oil immersed transformer is reduced, on the other hand, the opening of the backflow pipe is far away from the oil dirt, and the probability that the oil dirt blocks the backflow pipe can be effectively reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of transformer equipment, and in particular to an energy-saving photovoltaic boost box transformer device and an intelligent terminal thereof. Background Art

[0002] The photovoltaic step-up special box-type transformer is a specially designed transformer, which has the advantage of adapting to the needs of photovoltaic power generation systems. Among them, oil-immersed transformers are one of the commonly used choices for box-type transformers. When configuring, they are usually installed with oil pillows.

[0003] As one of the important components of the energy-saving photovoltaic booster transformer device, the oil pillow has the main function of regulating the change in the volume of the transformer oil. At the same time, it serves as a barrier to isolate the transformer from the outside world, effectively preventing the transformer oil from direct contact with the air, thereby reducing the oxidation and moisture of the oil and ensuring the insulation performance of the transformer oil. Although the existence of the oil pillow can effectively reduce the rate of oil deterioration, impurities and oil scale will still be generated in the transformer oil during the long-term use of the transformer oil. The oil scale and impurities are deposited at the bottom of the oil pillow, which will hinder the flow of the transformer oil, which is not only not conducive to the replenishment of the transformer oil, but also affects the flow of the transformer oil, thereby reducing the heat dissipation effect of the transformer oil.

[0004] In order to improve this problem, the related art discloses an integrated photovoltaic step-up transformer with application number CN201910677889X. In this scheme, a breathing structure is arranged at the upper end of the oil replenishment reflux structure. The oil with oil stains will flow downward along the slope of the filter plate. At this time, the filter hole will filter the oil, and the baffle will guide the oil to flow to the filter hole, and the curved plate can collect the oil stains to the inner side of the reflux chamber. When the oil impacts the inner side of the reflux chamber, it will drive the oil stains to move upward along the filter plate. At this time, the baffle will block the oil stains, and the filter hole will filter again, thereby collecting the oil stains in the transformer and preventing the transmission of oil between the oil pillow and the transformer from being blocked. However, in the actual experimental process, it was found that although the air entering the oil pillow was filtered in this scheme, since there was no barrier between the transformer oil and the air in the oil pillow, the transformer oil was affected by the air, and the oxidation and moisture rates were faster, thereby shortening the service life of the transformer oil.

[0005] In view of this, the present invention proposes an energy-saving photovoltaic boost box transformer device and an intelligent terminal thereof, which are used to solve the above technical problems. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes an energy-saving photovoltaic boost box transformer device and an intelligent terminal thereof.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: an energy-saving photovoltaic boost box transformer device described in the present invention comprises a box-type main body, an oil-immersed transformer and an oil conservator main body installed on the oil-immersed transformer; It also includes an oil control mechanism installed inside the oil conservator body, the oil control mechanism is used to control the flow path of the transformer oil in the transformer and the oil conservator body, and the oil control mechanism includes: A corrugated core body, wherein the corrugated core body is installed inside the oil pillow body, and the inner cavity of the oil pillow body is divided into an oil storage cavity and a venting cavity which are not connected to each other by the corrugated core body; An oil outlet pipe and a return pipe, both of which are fixedly mounted on the oil pillow, and both extend into the oil storage cavity, with the oil outlet pipe opening at the bottom end of the oil storage cavity and the return pipe opening at the top end of the oil storage cavity; It also includes a one-way control mechanism, which is used to control the flow path of the transformer oil in the oil outlet pipe and the return pipe.

[0008] Preferably, the return pipe is a telescopic pipe, and the top end of the return pipe is fixedly connected to the top end of the inner cavity of the corrugated core.

[0009] Preferably, a filter box is fixedly installed at the top of the inner cavity of the corrugated core, and the return pipe extends to the inner cavity of the filter box, and the filter box is used to filter the transformer oil.

[0010] Preferably, the one-way control mechanism comprises: A control tube, wherein the control tube is fixedly installed between the oil-immersed transformer and the oil conservator body, and the oil outlet pipe is fixedly installed on the top of the control tube, and the control tube is conductively connected to the oil-immersed transformer and the oil outlet pipe; A sliding plug, wherein the inner cavity of the control tube is stepped, and the inner cavity of the control tube near the oil pillow body is larger than the inner cavity near the oil-immersed transformer, and the sliding plug is slidably installed in the inner cavity of the control tube; A reflux hole is provided inside the sliding plug, a lifting groove is provided inside the sliding plug, the bottom end of the reflux pipe extends into the lifting groove and is slidingly sealed and connected with the lifting groove, a reflux hole is provided on the sliding plug, and the middle part of the reflux hole extends to the side wall of the lifting groove.

[0011] Preferably, a control spring is fixedly installed in the control tube, the control spring is fixedly connected to the sliding plug, and the control spring is used to control the initial position of the sliding plug.

[0012] Preferably, a partition bucket is fixedly installed in the oil pillow body, the partition bucket is fixedly installed on the control pipe, and the oil outlet pipe opening is located above the partition bucket.

[0013] Preferably, the height of the separation bucket gradually decreases from the center of the corrugated core to the edge, the side wall of the oil outlet pipe is open, and the opening direction of the oil outlet pipe is the same as the inclination direction of the separation bucket.

[0014] Preferably, a sewage pipe is installed at the bottom end of the oil pillow body, and an oil filling pipe is fixedly installed on the control pipe, and the oil filling pipe extends to the bottom of the lifting tank.

[0015] Preferably, a varactor is inlaid and installed at the top of the corrugated core, a diaphragm is fixedly installed in the varactor, a plunger pump is sealed and installed at the top of the varactor, and the bottom end of the varactor is conductively connected to the filter box.

[0016] An energy-saving photovoltaic boost box-type transformer intelligent terminal comprises an energy-saving photovoltaic boost box-type transformer device.

[0017] The beneficial effects of the present invention are as follows: 1. The energy-saving photovoltaic step-up transformer device and its intelligent terminal described in the present invention, by setting an oil control mechanism, control the flow of transformer oil, so that the hot transformer oil with more impurities in the oil-immersed transformer enters from the bottom of the oil storage chamber, and the transformer oil that has been standing in the oil storage chamber for a long time is lifted up, thereby shortening the sedimentation path of impurities in the transformer oil newly entering the oil storage chamber, and when the transformer oil refluxes, it starts to reflux from the top of the oil storage chamber, on the one hand, reducing the probability of the settled oil scale flowing back into the oil-immersed transformer, and on the other hand, the opening of the return pipe is far away from the oil scale, which can also effectively reduce the probability of the oil scale blocking the return pipe.

[0018] 2. The energy-saving photovoltaic step-up box transformer device and its intelligent terminal described in the present invention, by setting a one-way control mechanism, utilizes the transformation of transformer oil temperature and pressure to cause the sliding plug to move in the control tube, thereby controlling the change of the flow path of the transformer oil, so that the oil-immersed transformer and the transformer oil in the oil storage chamber can achieve one-way circulation flow, and during the flow process, the oil scale stays at the bottom of the oil storage chamber, effectively enhancing the smoothness of the transformer oil flow and reducing the probability of oil scale blocking the flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 It is a three-dimensional diagram of the assembly of the oil-immersed transformer and the oil conservator body; Figure 3 It is a stereoscopic diagram of the assembly of the corrugated core and the varactor; Figure 4 It is a stereoscopic diagram of the assembly of the control pipe, the oil outlet pipe and the return pipe; Figure 5 is a cross-sectional view of the present application; Figure 6 yes Figure 5 A partial enlarged view of the middle part; In the figure: 1. Box-type main body; 11. Oil-immersed transformer; 2. Oil pillow main body; 21. Corrugated core; 22. Oil storage chamber; 23. Breathing chamber; 24. Oil outlet pipe; 25. Return pipe; 26. Filter box; 3. Control pipe; 31. Sliding plug; 32. Lifting slot; 33. Return hole; 34. Control spring; 4. Dividing bucket; 41. Drain pipe; 42. Oil filling pipe; 5. Variable capacity tube; 51. Diaphragm; 52. Plunger pump. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figures 1 to 6 As shown, an energy-saving photovoltaic step-up box transformer device described in the present invention comprises a box-type main body 1, an oil-immersed transformer 11, and an oil conservator main body 2 installed on the oil-immersed transformer 11; It also includes an oil control mechanism installed inside the oil conservator body 2, the oil control mechanism is used to control the flow path of the transformer oil in the transformer and the oil conservator body 2, the oil control mechanism includes: The corrugated core 21 is installed inside the oil pillow body 2. The inner cavity of the oil pillow body 2 is divided into an oil storage cavity 22 and a vent cavity 23 which are not connected to each other by the corrugated core 21. The oil outlet pipe 24 and the return pipe 25 are fixedly mounted on the oil pillow, and the oil outlet pipe 24 and the return pipe 25 extend into the oil storage chamber 22, and the oil outlet pipe 24 opens at the bottom end of the oil storage chamber 22, and the return pipe 25 opens at the top end of the oil storage chamber 22; It also includes a one-way control mechanism, which is used to control the flow path of the transformer oil in the oil outlet pipe 24 and the return pipe 25.

[0023] When the oil pillow is used in combination with the oil-immersed transformer 11 to store and release the transformer oil, in order to enhance the degree of isolation between the transformer oil and the air, and at the same time to prevent the oil scale, impurities, etc. in the oil pillow body 2 from hindering the flow of the transformer oil, an oil control mechanism is provided in the present invention to guide and change the flow path of the transformer oil, thereby reducing the probability of equipment failure.

[0024] Specifically, in the present invention, a corrugated core 21 is installed in the oil pillow body 2. The corrugated core 21 is preferably made of stainless steel. The corrugated core 21 can be adaptively expanded and contracted under the pressure of the transformer oil inside, so that there is no air inside the corrugated core 21. At the same time, a breathing hole connected to the outside world is opened on the oil pillow body 2. When the corrugated core 21 shrinks and expands, the balance of the air pressure inside the oil pillow body 2 can be maintained. During long-term use, when the oil-immersed transformer 11 is working, its temperature usually changes from room temperature to high temperature. During the process, the temperature emitted by the oil-immersed transformer 11 is transferred to the transformer oil, and the transformer oil is used for cooling and heat dissipation. After the temperature of the transformer oil increases, its volume increases significantly, while the volume of the oil-immersed transformer 11 is constant, so that the oil pressure in the oil-immersed transformer 11 increases. With the assistance of the one-way control mechanism, the transformer oil enters the oil storage chamber 22 from the oil outlet pipe 24, and the transformer oil flows into the bottom end of the oil storage chamber 22. Due to the increase in oil pressure, the corrugated body stretches under the action of the oil pressure. When the oil-immersed transformer 11 stops being used, as The heat contained in the transformer oil continues to dissipate, causing the temperature of the transformer oil to decrease. Due to the characteristics of thermal expansion and contraction, the volume of the transformer oil decreases. At this time, the oil pressure decreases, causing the height of the corrugated core 21 to decrease. Under the cooperation of gravity and pressure, the transformer oil in the oil storage chamber 22 flows back to the oil-immersed transformer 11. During the reflux, under the cooperation of the one-way control mechanism, the transformer oil at the top of the oil storage chamber 22 enters the return pipe 25 and flows back to the oil-immersed transformer 11 through the return pipe 25, thereby realizing the circulation of the transformer oil. It should be noted that After the oil-immersed transformer 11 is started, the temperature it emits will cause the temperature of the transformer oil to rise. At the same time, the transformer oil exchanges heat with the outside world to achieve continuous heat dissipation of the transformer oil. When the oil-immersed transformer 11 stops working, the temperature of the transformer oil gradually decreases. At this time, the transformer oil at the top of the oil pillow has been standing for a long time, so the transformer oil at the top of the oil storage chamber 22 contains less impurities. When the transformer oil refluxes, the transformer oil at the top of the oil storage chamber 22 refluxes, which can keep the impurities in the oil storage chamber 22 as much as possible.

[0025] The present invention provides an oil control mechanism to control the flow of transformer oil, so that hot transformer oil with more impurities in the oil-immersed transformer 11 enters from the bottom of the oil storage chamber 22, and the transformer oil that has been standing for a long time in the oil storage chamber 22 is lifted up, thereby shortening the sedimentation path of impurities in the transformer oil newly entering the oil storage chamber 22. When the transformer oil refluxes, it starts to reflux from the top of the oil storage chamber 22, which, on the one hand, reduces the probability of the settled oil scale flowing back into the oil-immersed transformer 11, and on the other hand, the opening of the return pipe 25 is far away from the oil scale, which can also effectively reduce the probability of the oil scale blocking the return pipe 25.

[0026] As a preferred embodiment of the present invention, the return pipe 25 is a telescopic pipe, and the top end of the return pipe 25 is fixedly connected to the top end of the inner cavity of the corrugated core 21 .

[0027] The return pipe 25 is fixedly connected to the top of the corrugated core 21, so that the distance between the opening of the return pipe 25 and the top of the corrugated core 21 is maintained at a fixed value. In actual application, as the corrugated core 21 rises and falls, the top of the return pipe 25 can maintain synchronous movement with the top of the corrugated core 21, so that the transformer oil at the top of the oil storage chamber 22 is always in a state of priority reflux.

[0028] As a preferred embodiment of the present invention, a filter box 26 is fixedly installed at the top of the inner cavity of the corrugated core 21, and the return pipe 25 extends to the inner cavity of the filter box 26. The filter box 26 is used to filter the transformer oil.

[0029] In order to further enhance the impurity removal effect on the transformer oil, a filter box 26 is provided in the present invention. When the transformer oil at the top of the oil storage chamber 22 flows back to the oil-immersed transformer 11 through the return pipe 25, the presence of the filter box 26 can filter the refluxed transformer oil, thereby achieving further impurity removal of the transformer oil.

[0030] As a preferred embodiment of the present invention, the one-way control mechanism includes: The control tube 3 is fixedly installed between the oil-immersed transformer 11 and the oil conservator body 2, and the oil outlet pipe 24 is fixedly installed on the top of the control tube 3. The control tube 3 is conductively connected to the oil-immersed transformer 11 and the oil outlet pipe 24; A sliding plug 31, wherein the inner cavity of the control tube 3 is stepped, and the inner cavity of the control tube 3 at one end close to the oil pillow body 2 is larger than the inner cavity of the control tube 3 at one end close to the oil-immersed transformer 11, and the sliding plug 31 is slidably installed in the inner cavity of the control tube 3; A reflux hole 33 is provided inside the sliding plug 31 with a lifting groove 32. The bottom end of the reflux pipe 25 extends into the lifting groove 32 and is slidingly and sealingly connected to the lifting groove 32. A reflux hole 33 is provided on the sliding plug 31. The middle part of the reflux hole 33 extends to the side wall of the lifting groove 32.

[0031] A control spring 34 is fixedly installed in the control tube 3 . The control spring 34 is fixedly connected to the sliding plug 31 . The control spring 34 is used to control the initial position of the sliding plug 31 .

[0032] In the cycle of transformer oil expansion and contraction, the flow path of the transformer oil is controlled by the one-way control mechanism in conjunction with the oil outlet pipe 24 and the return pipe 25. In actual application, when the oil-immersed transformer 11 starts to work, the heat is first transferred to the transformer oil in the oil-immersed transformer 11, thereby increasing the oil pressure in the oil-immersed transformer 11. Under the driving force of the oil pressure, the sliding plug 31 moves toward the control tube 3 toward the oil pillow body 2. Since the inner cavity of the control tube 3 is stepped and the diameter is larger at one end close to the oil pillow body 2, the control tube 3 is changed from the closed state in the initial state to the conducting state with the movement of the sliding plug 31. The transformer oil in the oil-immersed transformer 11 enters the oil outlet pipe 24 through the control tube 3 and then flows into the bottom end of the oil storage chamber 22. When the temperature and pressure of the transformer oil in the oil pillow and the oil-immersed transformer 11 are maintained at a stable value, the sliding plug 31 descends under the action of the control spring 34 to re-regulate the control tube 3. The tube 3 is blocked, and when the oil-immersed transformer 11 stops working, the equipment does not generate heat at this time, but only dissipates heat, which will cause the temperature of the transformer oil in the oil pillow and the oil-immersed transformer 11 to drop. The drop in the temperature of the transformer oil in the oil pillow will cause the corrugated core 21 to shrink, and the drop in the temperature of the transformer oil in the oil-immersed transformer 11 will cause negative pressure to be generated in the oil-immersed transformer 11. Under the traction of the negative pressure, the sliding plug 31 will compress the control spring 34 and continue to move downward. As the sliding plug 31 continues to descend, the reflux hole 33 opened on the sliding plug 31 descends until the reflux hole 33 is connected to the reflux pipe 25. At this time, the transformer oil in the oil storage chamber 22 that has been stationary flows back to the oil-immersed transformer 11 through the reflux pipe 25 and the reflux hole 33 until the oil pressure in the oil-immersed transformer 11 and the oil storage chamber 22 is balanced again. At this time, under the action of the control spring 34, the sliding plug 31 will move to the initial position again.

[0033] The present invention sets a one-way control mechanism and utilizes the changes in transformer oil temperature and pressure to cause the sliding plug 31 to move in the control tube 3, thereby controlling the change in the flow path of the transformer oil, so that the transformer oil in the oil-immersed transformer 11 and the oil storage chamber 22 can achieve one-way circulation flow. During the flow process, the oil scale is caused to stay at the bottom of the oil storage chamber 22, thereby effectively enhancing the smoothness of the transformer oil flow and reducing the probability of the oil scale blocking the flow channel.

[0034] As a preferred embodiment of the present invention, a partition bucket 4 is fixedly installed in the oil pillow body 2 , the partition bucket 4 is fixedly installed on the control pipe 3 , and the opening of the oil outlet pipe 24 is located above the partition bucket 4 .

[0035] The height of the separation bucket 4 gradually decreases from the center of the corrugated core 21 to the edge. The side wall of the oil outlet pipe 24 is open, and the opening direction of the oil outlet pipe 24 is the same as the inclination direction of the separation bucket 4.

[0036] Due to the existence of the separator 4, when the transformer oil is stationary in the oil storage chamber 22, the oil stains settle to the bottom of the oil storage chamber 22, causing part of the oil stains to settle on the separator 4, and the other part to be deposited at the bottom of the oil outlet chamber through the gap between the separator 4 and the corrugated core 21. When the transformer oil flows out through the oil outlet pipe 24, under the impact of the oil, the oil stains deposited on the separator 4 move toward the gap between the separator 4 and the corrugated core 21, and the oil cannot impact the bottom of the separator 4. Therefore, during long-term use, the oil stains are caused to gather under the separator 4, which is convenient for cleaning and discharging the oil stains at a later time. The setting of the inclined surface of the separator 4 and the setting of the opening of the oil outlet pipe 24 further enhance the guiding effect on the moving oil stains, and cause the oil stains to be deposited downward from the gap between the separator 4 and the corrugated core 21.

[0037] As a preferred embodiment of the present invention, a drain pipe 41 is installed at the bottom end of the oil pillow body 2 , and an oil filling pipe 42 is fixedly installed on the control pipe 3 , and the oil filling pipe 42 extends to the bottom of the lifting groove 32 .

[0038] The drain pipe 41 is arranged at the bottom end of the oil pillow body 2 and is conductively connected with the oil storage chamber 22. When the oil pillow is regularly maintained, the oil filling pipe 42 can be directly opened to discharge the oil scale deposited at the bottom of the oil storage chamber 22. The setting of the oil filling pipe 42 allows new transformer oil to be injected again through the oil filling pipe 42 when the impure transformer oil is discharged. The new transformer oil flows from the return pipe 25 to the filter box 26, and flows to the oil storage chamber 22 through the filter box 26, thereby realizing backwashing of the filter box 26, and then cleaning the filter box 26, reducing the probability of clogging of the filter box 26.

[0039] As a preferred embodiment of the present invention, a varactor 5 is embedded and installed at the top of the corrugated core 21, a diaphragm 51 is fixedly installed in the varactor 5, a plunger pump 52 is sealed at the top of the varactor 5, and the bottom of the varactor 5 is conductively connected to the filter box 26.

[0040] Since the maintenance period of transformer oil is relatively long, in order to further reduce the probability of clogging of the filter box 26 during daily use, the present invention is further provided with a varactor 5, a diaphragm 51 and a plunger pump 52. The plunger pump 52 is controlled to start periodically through a pre-set program. After starting, the plunger pump 52 first extracts air from the top of the varactor 5, causing the diaphragm 51 to deform upward. At this time, the volume at the bottom of the varactor 5 increases, prompting the transformer oil to flow to the filter box 26 and the bottom of the varactor 5. Then, the plunger pump 52 extracts air from the top of the varactor 5. The air is injected into the top of the varactor tube 5 again, causing the diaphragm 51 to deform downward, thereby pressurizing the transformer oil in the filter box 26. Under the action of pressure, the transformer oil in the filter box 26 flows into the oil storage chamber 22, thereby realizing the backwashing of the filter box 26, thereby causing the oil scale to separate from the filter box 26 and deposit at the bottom of the oil storage chamber 22 under the action of static standing. Through the periodic operation of the plunger pump 52, the periodic backwashing of the filter box 26 is realized, and the probability of clogging of the filter box 26 is further reduced.

[0041] It should be noted that, in the present invention, the plunger pump 52 is mainly used to extract and release the air at the upper end of the varactor 5, while in other embodiments of the present application, the plunger pump 52 can also be a piston pump or the like.

[0042] An energy-saving photovoltaic boost box-type transformer intelligent terminal comprises an energy-saving photovoltaic boost box-type transformer device.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An energy-saving photovoltaic step-up box transformer device, comprising a box-type main body (1), an oil-immersed transformer (11), and an oil pillow main body (2) mounted on the oil-immersed transformer (11); Features: It also includes an oil control mechanism installed inside the oil pillow body (2), the oil control mechanism is used to control the flow path of transformer oil in the transformer and the oil pillow body (2), the oil control mechanism includes: A corrugated core (21), the corrugated core (21) being installed inside the oil pillow body (2), the inner cavity of the oil pillow body (2) being divided by the corrugated core (21) into an oil storage cavity (22) and a vent cavity (23) which are not connected to each other; An oil outlet pipe (24) and a return pipe (25), wherein the oil outlet pipe (24) and the return pipe (25) are both fixedly mounted on the oil pillow, and both extend into the oil storage chamber (22), and the oil outlet pipe (24) opens at the bottom end of the oil storage chamber (22), and the return pipe (25) opens at the top end of the oil storage chamber (22); It also includes a one-way control mechanism, which is used to control the flow path of the transformer oil in the oil outlet pipe (24) and the return pipe (25).

2. The energy-saving photovoltaic boost box transformer device according to claim 1 is characterized in that: The return pipe (25) is a telescopic pipe, and the top end of the return pipe (25) is fixedly connected to the top end of the inner cavity of the corrugated core (21).

3. The energy-saving photovoltaic boost box transformer device according to claim 2 is characterized in that: A filter box (26) is fixedly mounted on the top of the inner cavity of the corrugated core (21), and the return pipe (25) extends to the inner cavity of the filter box (26). The filter box (26) is used to filter transformer oil.

4. The energy-saving photovoltaic boost box transformer device according to claim 3 is characterized in that: The one-way control mechanism comprises: A control tube (3), the control tube (3) being fixedly mounted between the oil-immersed transformer (11) and the oil pillow body (2), the oil outlet pipe (24) being fixedly mounted on the top of the control tube (3), the control tube (3) being conductively connected to the oil-immersed transformer (11) and the oil outlet pipe (24); A sliding plug (31), wherein the inner cavity of the control tube (3) is stepped, and the inner cavity of the control tube (3) at one end close to the oil pillow body (2) is larger than the inner cavity at one end close to the oil-immersed transformer (11), and the sliding plug (31) is slidably installed in the inner cavity of the control tube (3); A reflux hole (33), a lifting groove (32) is provided inside the sliding plug (31), the bottom end of the reflux pipe (25) extends into the lifting groove (32) and is slidably and hermetically connected to the lifting groove (32), a reflux hole (33) is provided on the sliding plug (31), and the middle part of the reflux hole (33) extends to the side wall of the lifting groove (32).

5. The energy-saving photovoltaic boost box transformer device according to claim 4 is characterized in that: A control spring (34) is fixedly installed in the control tube (3), the control spring (34) is fixedly connected to the sliding plug (31), and the control spring (34) is used to control the initial position of the sliding plug (31).

6. The energy-saving photovoltaic boost box transformer device according to claim 5 is characterized in that: A separation bucket (4) is fixedly mounted inside the oil pillow body (2); the separation bucket (4) is fixedly mounted on the control pipe (3); and the opening of the oil outlet pipe (24) is located above the separation bucket (4).

7. The energy-saving photovoltaic boost box transformer device according to claim 6 is characterized in that: The height of the separation bucket (4) gradually decreases from the center of the corrugated core (21) to the edge, the side wall of the oil outlet pipe (24) is open, and the opening direction of the oil outlet pipe (24) is the same as the inclination direction of the separation bucket (4).

8. The energy-saving photovoltaic boost box transformer device according to claim 7 is characterized in that: A sewage discharge pipe (41) is installed at the bottom end of the oil pillow body (2), and an oil filling pipe (42) is fixedly installed on the control pipe (3), and the oil filling pipe (42) extends to the bottom of the lifting groove (32).

9. The energy-saving photovoltaic boost box transformer device according to claim 8 is characterized in that: A varactor (5) is inlaid and installed at the top of the corrugated core (21), a diaphragm (51) is fixedly installed in the varactor (5), a plunger pump (52) is sealably installed at the top of the varactor (5), and the bottom end of the varactor (5) is conductively connected to the filter box (26).

10. An energy-saving photovoltaic boost box-type transformer intelligent terminal, characterized in that: The intelligent terminal includes an energy-saving photovoltaic boost box transformer device as described in claim 9.

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