A transformer with internal component safety monitoring function

Abstract

The application provides a transformer with internal component safety monitoring function, and belongs to the technical field of transformers. One end of a reference tube is in communication with the top of an oil tank, and the other end is in communication with a return pipe, which is in communication with the bottom of the oil tank. A rotating ring is arranged around the reference tube. A matching groove is formed in the inner wall of the rotating ring, the matching groove extends along the circumference of the rotating ring, and the depth of the matching groove decreases gradually. The reference tube is provided with a radial hole, and a moving column is slidably arranged in the radial hole. The moving column has an axial through hole, and a first one-way mechanism is installed in the axial through hole. The moving column is matched with a first elastic member. A second one-way mechanism is installed in the return pipe. A filter plate is also installed in the reference tube, and a detection assembly is arranged close to the filter plate to detect the amount of impurities at the filter plate. It can realize safety monitoring of internal components, reduce the degree of dependence on manual operation, and improve the monitoring accuracy of transformer operation safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformers, in particular to a transformer with internal component safety monitoring function. BACKGROUND

[0002] In a transformer, insulating oil plays the roles of insulation protection, heat dissipation and cooling, arc extinguishing protection, material protection, etc. In addition, the content of solid impurities in the insulating oil can also reflect the health degree of the internal components of the transformer.

[0003] At present, the monitoring of the insulating oil of the transformer is realized by manual detection. The operating personnel need to periodically sample and detect the insulating oil of the transformer to ensure the safe operation of the transformer. Due to the large number of transformers, manual detection has the problems of large error, high labor cost, and possible untimely detection, etc., which leads to the inability to more accurately control the overall operation condition of the transformer. SUMMARY

[0004] The purpose of the present application is to provide a transformer with internal component safety monitoring function, which can realize safety monitoring of internal components, reduce the degree of dependence on manual operation, and improve the monitoring accuracy of the safe operation of the transformer.

[0005] The embodiment of the present application is implemented as follows:

[0006] A transformer with internal component safety monitoring function comprises a transformer main body and a monitoring mechanism.

[0007] The monitoring mechanism comprises a reference tube, a return tube, a rotating ring, a driver and a detection assembly.

[0008] One end of the reference tube is in communication with the top of an oil tank of the transformer main body, the other end of the reference tube is in communication with the return tube, and the end of the return tube away from the reference tube is in communication with the bottom of the oil tank.

[0009] The end of the reference tube away from the return tube extends into the oil tank, and the end of the reference tube away from the return tube is closed by a first sealing plate.

[0010] The rotating ring is annularly arranged at the end of the reference tube away from the return tube, the rotating ring is coaxially arranged with the reference tube, and the rotating ring is located in the oil tank.

[0011] The inner ring wall of the rotating ring is provided with a matching groove, and the matching groove extends along the circumference of the rotating ring. Along the circumference of the rotating ring, the matching groove has opposite first and second end portions, and in the direction from the first end portion to the second end portion, the depth of the matching groove decreases.

[0012] The matching grooves are multiple, and are arranged along the circumference of the rotating ring. The first end of one of the adjacent two matching grooves is in communication with the second end of the other.

[0013] The reference tube is provided with a radial hole corresponding to the rotating ring. A movement column is matched in the radial hole. Along the axial direction of the radial hole, the movement column is slidingly matched in the radial hole and is slidingly sealed. The movement column has an axial through hole in which a first one-way mechanism is installed. The movement column is matched with a first elastic member, which is used to drive the movement column to move out of the reference tube, so that the movement column abuts against the groove bottom wall of the matching groove.

[0014] The return pipe is installed with a second one-way mechanism.

[0015] The reference tube is also installed with a filter plate, which is located on the side of the radial hole close to the return pipe. A detection assembly is arranged close to the filter plate for detecting the impurity amount at the filter plate.

[0016] The rotating ring is in transmission cooperation with a driver, so that the rotating ring can rotate relative to the reference tube, so that the movement column moves in the matching grooves in sequence, so that the movement column can reciprocatingly move in the radial hole, and further drive the insulating oil in the reference tube to flow from the position of the movement column to the filter plate.

[0017] Further, the end of the reference tube away from the first sealing plate is closed by a second sealing plate, and the return pipe is connected to the side wall of the reference tube.

[0018] The reference tube is also provided with a driving shaft, which is coaxially arranged with the reference tube. The driving shaft penetrates the first sealing plate and the second sealing plate, and the first sealing plate and the second sealing plate are both in rotational sealing with the driving shaft.

[0019] The end of the driving shaft away from the second sealing plate is in transmission cooperation with the rotating ring. The driver is arranged outside the transformer body, and the driver is in transmission cooperation with the end of the driving shaft away from the first sealing plate.

[0020] Further, the detection assembly comprises a first collecting cover and a first push block.

[0021] The first collecting cover is arranged on the side of the filter plate close to the first sealing plate, and the first collecting cover and the filter plate form a first collecting cavity for collecting impurities. Along the circumference of the driving shaft, one side of the first collecting cover is provided with a first opening.

[0022] The driving shaft is rotatably sleeved with a first matching ring, the first push block is fixedly connected with the first matching ring, and the first push block is attached to the side of the filter plate close to the first sealing plate.

[0023] A first axial hole is formed in the end face of the driving shaft close to the first sealing plate, and the first axial hole extends to the filter plate.

[0024] A first core body is rotatably fitted in the first axial hole. An end of the first core body away from the filter plate is fixedly connected with a first extension arm, the first extension arm is located in the oil tank and extends towards the matching groove, and the first extension arm is located on a side of the rotating ring away from the filter plate.

[0025] The first extension arm is fixedly connected with a first matching column, and the first matching column extends towards a side where the rotating ring is located. An end face of the first matching column close to the rotating ring is located on a side of the rotating ring away from the filter plate.

[0026] In the radial direction of the reference tube, a distance between the first matching column and the outer side wall of the reference tube is a first interval, a distance between the groove bottom wall of the first end portion and the outer side wall of the reference tube is a second interval, and a distance between the groove bottom wall of the second end portion and the outer side wall of the reference tube is a third interval. Among them, the third interval < the first interval < the second interval.

[0027] The drive shaft is also provided with a first notch in communication with the first axial hole, and the first notch continuously extends in an arc shape along the circumference of the drive shaft. The first matching ring is sleeved at the first notch, the first core body is fixedly connected with the first matching ring by a first connecting block, and the first connecting block is located in the first notch.

[0028] The side wall of the movement column close to the first sealing plate is located on a side of the rotating ring away from the filter plate.

[0029] The first core body has a first rotation stop point and a second rotation stop point, the first core body is fitted with a second elastic member, and the second elastic member is used to drive the first core body to rotate from the second rotation stop point to the first rotation stop point. Among them, the direction in which the second elastic member drives the first core body to rotate is the same as the direction in which the drive shaft rotates.

[0030] When the first core body is located at the first rotation stop point, the first matching column is close to the first end portion of the matching groove, and in the circumferential direction of the reference tube, a gap is left between the end wall of the first end portion and the first matching column, and the width of the gap is greater than or equal to the outer diameter of the movement column.

[0031] When the movement column enters the gap, the drive shaft rotates, and the movement column can push the first matching column to move towards the second rotation stop point. Among them, before the first matching column reaches the second rotation stop point, the movement column is separated from the first matching column.

[0032] When the movement column pushes the first matching column, the first core body drives the first matching ring to rotate, so that the first push block pushes the impurities on the surface of the filter plate into the first collection cavity from the first opening.

[0033] The first push block is provided with a first pressure sensor on a side close to the first opening.

[0034] Further, the first collecting cover is in a flat plate shape, the first collecting cover is arranged in parallel and spaced apart from the filter plate, a side of the first collecting cover close to the drive shaft is attached to the outer side wall of the drive shaft, and a side of the first collecting cover close to the inner wall of the reference tube is attached to the inner wall of the reference tube. A side of the first collecting cover away from the first push block is closed by the first end plate, and the first end plate, the first collecting cover and the filter plate enclose to form the first collecting cavity.

[0035] The side of the filter plate close to the first end plate is further provided with a second collecting cover, the second collecting cover is in a flat plate shape, the second collecting cover is arranged in parallel and spaced apart from the filter plate, a side of the second collecting cover close to the drive shaft is attached to the outer side wall of the drive shaft, and a side of the second collecting cover close to the inner wall of the reference tube is attached to the inner wall of the reference tube. A side of the second collecting cover away from the first collecting cover is closed by the second end plate, and the second end plate, the second collecting cover and the filter plate enclose to form the second collecting cavity for accommodating the first push block.

[0036] The distance between the first collecting cover and the second collecting cover and the filter plate is matched with the thickness of the first push block. The first matching ring is located on the side of the first collecting cover and the second collecting cover close to the filter plate.

[0037] When the first core body is located at the first rotation stop point, the first push block is located in the second collecting cavity. When the movement column is about to be separated from the first matching column, the first push block partially extends into the first collecting cavity, and the first push block is partially located in the second collecting cavity.

[0038] Further, the detection assembly further comprises a third collecting cover, a fourth collecting cover and a second push block.

[0039] The third collecting cover and the fourth collecting cover are arranged on the side of the filter plate close to the first end plate. The third collecting cover and the fourth collecting cover are in a flat plate shape and arranged in parallel and spaced apart from the filter plate.

[0040] The third collecting cover is arranged close to the second collecting cover. A side of the third collecting cover close to the drive shaft is attached to the outer side wall of the drive shaft, and a side of the third collecting cover close to the inner wall of the reference tube is attached to the inner wall of the reference tube. A side of the third collecting cover close to the second collecting cover is closed by the third end plate, and the third end plate, the third collecting cover and the filter plate enclose to form the third collecting cavity.

[0041] The fourth collecting cover is arranged close to the first collecting cover. A side of the fourth collecting cover close to the drive shaft is attached to the outer side wall of the drive shaft, and a side of the fourth collecting cover close to the inner wall of the reference tube is attached to the inner wall of the reference tube. A side of the fourth collecting cover close to the first collecting cover is closed by the fourth end plate, and the fourth end plate, the fourth collecting cover and the filter plate enclose to form the fourth collecting cavity.

[0042] The driving shaft is rotatably sleeved with a second matching ring, and the second matching ring is located on the side of the third collecting cover and the fourth collecting cover close to the filter plate. The second push block is fixedly connected with the second matching ring, and the second push block is attached to the side of the filter plate close to the first sealing plate. The distance between the third collecting cover and the fourth collecting cover and the filter plate is adapted to the thickness of the second push block.

[0043] The second matching ring is located on the side of the first matching ring away from the first sealing plate.

[0044] A gap is left between the first core body and the hole bottom of the first axial hole, the first core body is provided with a second axial hole penetrating through the first core body.

[0045] The second core body is rotatably matched in the second axial hole. The second core body is fixedly connected with a second extension arm at an end away from the filter plate, the second extension arm is located in the oil tank and extends towards the matching groove, and the second extension arm is located on the side of the rotating ring away from the filter plate.

[0046] The second extension arm is fixedly connected with a second matching column extending towards the side of the rotating ring. The end face of the second matching column close to the rotating ring is located on the side of the rotating ring away from the filter plate.

[0047] In the radial direction of the reference tube, the distance between the second matching column and the outer side wall of the reference tube is a fourth distance, and the third distance < the fourth distance < the second distance.

[0048] The driving shaft is further provided with a second notch in communication with the first axial hole, and the second notch continuously extends in an arc shape along the circumference of the driving shaft. The second matching ring is sleeved at the second notch, and the second core body is fixedly connected with the second matching ring by a second connecting block, and the second connecting block is located in the second notch.

[0049] The second core body has a third rotation stop point and a fourth rotation stop point, and the second core body is matched with a third elastic member for driving the second core body to rotate from the fourth rotation stop point to the third rotation stop point. The direction in which the third elastic member drives the second core body to rotate is the same as the direction in which the driving shaft rotates.

[0050] When the second core body is located at the third rotation stop point, the second matching column is close to the first end portion of the matching groove, and in the circumferential direction of the reference tube, a gap is left between the end wall of the first end portion and the second matching column, and the width of the gap is greater than or equal to the outer diameter of the moving column.

[0051] When the moving column enters the gap, the driving shaft rotates, and the moving column can push the second matching column to move towards the fourth rotation stop point. Before the second matching column reaches the fourth rotation stop point, the moving column is separated from the second matching column.

[0052] When the moving column pushes the second matching column, the second core drives the second matching ring to rotate, so that the second push block pushes the impurities on the surface of the filter plate into the third collecting cavity.

[0053] The side of the second push block close to the third collecting cover is provided with a second pressure sensor.

[0054] When the second core is located at the third rotation stop point, the second push block is located in the fourth collecting cavity. When the moving column is about to separate from the second matching column, the second push block partially extends into the third collecting cavity, and the second push block is partially located in the fourth collecting cavity.

[0055] The first matching column and the second matching column correspond to different matching grooves.

[0056] Further, the first extension arm and the second extension arm are arranged along the radial direction of the drive shaft, and the first matching column and the second matching column are arranged along the axial direction of the drive shaft.

[0057] Further, the number of matching grooves is four.

[0058] Further, the drive shaft sleeve is provided with a positioning ring, the positioning ring is in rotation cooperation with the drive shaft, the positioning ring is arranged close to the moving column, and the positioning ring is fixedly connected to the inner wall of the reference tube by the connecting column. The first elastic member abuts between the moving column and the positioning ring.

[0059] The technical scheme of the embodiment of the application has the following beneficial effects:

[0060] When the rotating ring rotates relative to the reference tube, the moving column can move in the matching grooves in sequence, and under the action of the groove bottom wall of the matching grooves, the moving column can reciprocate in the radial hole. Under the cooperation of the first one-way mechanism and the second one-way mechanism, the insulating oil in the oil tank can be sucked into the reference tube through the axial through hole, and the insulating oil in the reference tube can be pushed to the filter plate from the position of the moving column for filtering, and finally the filtered insulating oil can return to the oil tank through the return pipe.

[0061] In this way, the filter plate can be used to continuously filter the insulating oil, and the impurities in the insulating oil can be separated out at the filter plate. By detecting the amount of impurities filtered out at the filter plate by using the detection assembly, the content level of impurities in the insulating oil can be judged, so as to judge the health degree of the internal elements of the transformer body.

[0062] If the content of impurities in the insulating oil significantly increases in a short time, it indicates that the internal elements of the transformer body are likely to be seriously aged.

[0063] Overall, the transformer provided by the embodiment of the application has the internal element safety monitoring function, which can realize safety monitoring of the internal elements, reduces the dependence on manual operation, and improves the monitoring accuracy of the operation safety of the transformer. Attached Figure Description

[0064] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0065] Figure 1 This is a schematic diagram of the overall structure of the transformer provided in an embodiment of this application;

[0066] Figure 2 This is a schematic diagram of the monitoring system assembly.

[0067] Figure 3 This is a schematic diagram showing the fit between the rotating ring and the reference tube;

[0068] Figure 4 This is a schematic diagram of the engagement between the rotating ring and the moving column (when the moving column enters the gap L1).

[0069] Figure 5 This is a schematic diagram of the engagement between the rotating ring and the moving column (when the moving column is about to separate from the first engaging column).

[0070] Figure 6 This is a schematic diagram of the assembly of the testing components;

[0071] Figure 7 This is an assembly diagram of the first mating ring and the second mating ring;

[0072] Figure 8 This is a schematic diagram showing the states of the first pusher block and the second pusher block (when neither the first core nor the second core is being pushed).

[0073] Figure 9 for Figure 8 A schematic diagram showing the result after removing the first, second, third, and fourth collection covers;

[0074] Figure 10 This is a schematic diagram showing the states of the first and second push blocks (when the first core is pushed).

[0075] Figure 11 for Figure 10 A schematic diagram showing the results after removing the first, second, third, and fourth collection covers.

[0076] Explanation of reference numerals in the attached figures:

[0077] Transformer body 100; reference tube 200; first sealing plate 210; moving column 220; axial through hole 221; first one-way mechanism 222; filter plate 230; second sealing plate 240; return pipe 300; rotating ring 400; mating groove 410; first end 411; second end 412; drive shaft 500; first mating ring 510; first notch 511; first connecting block 512; first core 520; first extension arm 521; first mating column 522; second mating ring 530; second Notch 531; second connecting block 532; second core 540; second extension arm 541; second mating post 542; positioning ring 550; connecting post 551; first collecting cover 610; first push block 620; first pressure sensor 621; first end plate 630; second collecting cover 640; second end plate 650; third collecting cover 710; third end plate 720; fourth collecting cover 730; fourth end plate 740; second push block 750; second pressure sensor 751; gap L1; gap L2. Detailed Implementation

[0078] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0079] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0080] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0081] The terms “first,” “second,” “third,” “fourth,” etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0082] Furthermore, the terms "vertical" and "parallel" do not mean that the parts must be absolutely vertical or parallel, but can be slightly tilted.

[0083] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0084] The technical solutions of this application will be described by way of example through some embodiments below.

[0085] See Figures 1-3 This application provides a transformer with internal component safety monitoring function. The transformer includes a transformer body 100 and a monitoring mechanism.

[0086] The monitoring mechanism includes: reference tube 200, return tube 300, rotating ring 400, driver (not shown in the figure) and detection components.

[0087] In this embodiment, the reference tube 200 is a circular tube. One end of the reference tube 200 is connected to the top of the oil tank of the transformer body 100, and the other end of the reference tube 200 is connected to the return pipe 300. The end of the return pipe 300 away from the reference tube 200 is connected to the bottom of the oil tank.

[0088] The end of the reference tube 200 away from the return tube 300 extends into the oil tank, and the end of the reference tube 200 away from the return tube 300 is closed by the first sealing plate 210.

[0089] The rotating ring 400 is located at the end of the reference tube 200 away from the return tube 300. The rotating ring 400 is coaxial with the reference tube 200. The inner diameter of the rotating ring 400 is larger than the outer diameter of the reference tube 200. The rotating ring 400 is located inside the oil tank of the transformer body 100.

[0090] The inner ring wall of the rotating ring 400 is provided with a mating groove 410. The mating groove 410 is formed by the radial indentation of the inner ring wall of the rotating ring 400 and extends along the circumference of the rotating ring 400.

[0091] Along the circumference of the rotating ring 400, the mating groove 410 has a first end 411 and a second end 412, and the depth of the mating groove 410 decreases in the direction from the first end 411 to the second end 412.

[0092] There are multiple mating grooves 410 arranged sequentially along the circumference of the rotating ring 400. The first end 411 of one of two adjacent mating grooves 410 is connected to the second end 412 of the other.

[0093] In this embodiment, there are four grooves 410, but it is not limited to this.

[0094] The sidewall of the reference tube 200 has radial holes communicating with its internal space, and the radial holes are provided corresponding to the rotating ring 400. In this embodiment, there are two radial holes, which are respectively provided on opposite sides of the reference tube 200, and the two radial holes are coaxially arranged.

[0095] Each radial hole contains a movable post 220. Along the axial direction of the radial hole, the movable post 220 slides within the radial hole and provides a sliding seal. The movable post 220 has an axial through hole 221 that penetrates both end walls of the movable post 220. A first one-way mechanism 222 is installed within the axial through hole 221.

[0096] The first one-way mechanism 222 allows the insulating oil in the tank to enter the reference tube 200 through the axial through hole 221, but prevents the insulating oil in the reference tube 200 from entering the tank through the axial through hole 221.

[0097] The moving column 220 is fitted with a first elastic element (not shown in the figure). The first elastic element is used to drive the moving column 220 to move outward from the reference tube 200, so that the moving column 220 can abut against the bottom wall of the mating groove 410, such as... Figure 3 As shown.

[0098] A second one-way mechanism (not shown in the figure) is installed inside the return pipe 300. The second one-way mechanism allows the insulating oil in the reference pipe 200 to return to the oil tank through the return pipe 300, but prevents the insulating oil in the oil tank from entering the reference pipe 200 through the return pipe 300.

[0099] A filter plate 230 is also installed inside the reference tube 200, and the filter plate 230 is located on the side of the radial hole near the return pipe 300. In this embodiment, the filter plate 230 is arranged perpendicular to the central axis of the reference tube 200.

[0100] The detection component is positioned close to the filter plate 230 to detect impurities at the filter plate 230.

[0101] The rotating ring 400 is driven by the driver so that the rotating ring 400 can rotate relative to the reference tube 200, thereby causing the moving column 220 to move sequentially within each mating groove 410. That is, the rotation direction of the rotating ring 400 is as follows: Figure 3 As shown in the K direction, that is, for the same mating groove 410, the rotation direction of the rotating ring 400 is: the direction in which the second end 412 of the mating groove 410 points to its first end 411.

[0102] With this design, when the rotating ring 400 rotates relative to the reference tube 200, the moving column 220 can move sequentially within each mating groove 410. Under the action of the bottom wall of the mating groove 410, the moving column 220 can reciprocate within the radial hole. With the cooperation of the first one-way mechanism 222 and the second one-way mechanism, the insulating oil in the oil tank can be drawn into the reference tube 200 through the axial through hole 221, and the insulating oil in the reference tube 200 can be pushed from the position of the moving column 220 to the filter plate 230 for filtration. The filtered insulating oil finally returns to the oil tank through the return pipe 300.

[0103] In this way, the filter plate 230 can be used to continuously filter the insulating oil and separate the impurities in the insulating oil at the filter plate 230. By using the detection component to detect the amount of impurities filtered out at the filter plate 230, the level of impurity content in the insulating oil can be determined, thereby determining the health of the internal components of the transformer body 100.

[0104] If the impurity content in the insulating oil increases significantly within a short period of time, it indicates that the internal components of the transformer body 100 are likely to have undergone severe aging.

[0105] Overall, the transformer with internal component safety monitoring function provided in this application embodiment can achieve safety monitoring of internal components, reduce reliance on manual labor, and improve the monitoring accuracy of transformer operation safety. It also further improves the circulation efficiency of insulating oil in the transformer body 100.

[0106] In this embodiment, the end of the reference tube 200 away from the first sealing plate 210 is sealed by the second sealing plate 240, and the return tube 300 is connected to the side wall of the end of the reference tube 200 near the second sealing plate 240.

[0107] A drive shaft 500 is also provided inside the reference tube 200. The drive shaft 500 is coaxially arranged with the reference tube 200. The drive shaft 500 passes through the first sealing plate 210 and the second sealing plate 240, and both the first sealing plate 210 and the second sealing plate 240 are rotatably sealed with the drive shaft 500.

[0108] The end of the drive shaft 500 away from the second sealing plate 240 is engaged with the rotating ring 400 in a transmission manner. Optionally, the end of the drive shaft 500 away from the second sealing plate 240 is fixedly connected to the rotating ring 400 by a connecting rod, but is not limited thereto.

[0109] The driver is located outside the transformer body 100, and the driver is engaged with the exposed part of the drive shaft 500 that extends outside the second cover plate 240.

[0110] This design makes it easier to install and maintain the drive.

[0111] In this embodiment, please refer to Figures 6-9 The detection components include: a first collection cover 610 and a first pusher block 620.

[0112] The first collection cover 610 is disposed on the side of the filter plate 230 near the first sealing plate 210, and the first collection cover 610 and the filter plate 230 together form a first collection cavity for collecting impurities. A first opening is provided on one side of the first collection cover 610 along the circumference of the drive shaft 500.

[0113] The drive shaft 500 is rotatably fitted with a first mating ring 510, and the first push block 620 is fixedly connected to the first mating ring 510. The first push block 620 is in contact with the side of the filter plate 230 near the first sealing plate 210.

[0114] A first axial hole is provided on one end face of the drive shaft 500 near the first sealing plate 210. The first axial hole extends to the filter plate 230 and is coaxial with the drive shaft 500.

[0115] A first core 520 is rotatably fitted inside the first axial hole. One end of the first core 520 extends along the first axial hole to the filter plate 230, and the other end extends outside the drive shaft 500 (inside the oil tank).

[0116] A first extension arm 521 is fixedly connected to one end of the first core 520 away from the filter plate 230. The first extension arm 521 is located inside the oil tank and extends toward the mating groove 410. The first extension arm 521 is located on the side of the rotating ring 400 away from the filter plate 230. In this embodiment, the first extension arm 521 is arranged radially along the first core 520.

[0117] The first extension arm 521 is fixedly connected to a first mating post 522, which extends toward the side where the rotating ring 400 is located. The end face of the first mating post 522 near the rotating ring 400 is located on the side of the rotating ring 400 away from the filter plate 230. In this embodiment, the first mating post 522 is arranged along the axial direction of the drive shaft 500.

[0118] Along the radial direction of the reference tube 200, the distance between the first mating post 522 and the outer wall of the reference tube 200 is the first spacing; the distance between the bottom wall of the first end 411 of the mating groove 410 and the outer wall of the reference tube 200 is the second spacing; and the distance between the bottom wall of the second end 412 of the mating groove 410 and the outer wall of the reference tube 200 is the third spacing. Wherein, the third spacing < the first spacing < the second spacing.

[0119] The drive shaft 500 also has a first notch 511 communicating with the first axial hole. The first notch 511 extends continuously in an arc shape along the circumference of the drive shaft 500. A first mating ring 510 is sleeved on the first notch 511. The first core 520 and the first mating ring 510 are fixedly connected by a first connecting block 512, which is located inside the first notch 511. When the first core 520 rotates relative to the drive shaft 500, the first core 520 can drive the first connecting block 512 to move within the first notch 511, thereby driving the first mating ring 510 to rotate, thus driving the first push block 620.

[0120] The side wall of the moving column 220 near the first sealing plate 210 is located on the side of the rotating ring 400 away from the filter plate 230.

[0121] The first core 520 has a first rotation stop and a second rotation stop.

[0122] A second elastic element (not shown in the figure) is fitted between the first core 520 and the drive shaft 500. The second elastic element drives the first core 520 to rotate from the second rotation stop point to the first rotation stop point. The direction in which the second elastic element drives the first core 520 to rotate is the same as the direction of rotation of the drive shaft 500. The second elastic element can be a torsion spring, a coil spring, or is not limited to these.

[0123] When the first core 520 is at the first rotation stop point, the first mating post 522 is close to the first end 411 of the mating groove 410. In the circumferential direction of the reference tube 200, a gap L1 is left between the plane containing the end wall of the first end 411 and the first mating post 522 (e.g., ...). Figure 3 As shown), the width of the gap L1 is greater than or equal to the outer diameter of the moving column 220.

[0124] As the drive shaft 500 rotates, when the moving column 220 enters the gap L1 (as shown in the image), Figure 4 As shown), the drive shaft 500 continues to rotate, and the moving column 220 can push the first mating column 522 to move towards the second rotation stop point (as shown). Figure 5 As shown in the diagram, during the process of the moving column 220 pushing the first mating column 522 toward the second rotation stop point, the moving column 220 is gradually pushed into the reference tube 200 by the bottom wall of the mating groove 410. The distance between the first mating column 522 and the end of the moving column 220 near the rotating ring 400 will gradually decrease until the first mating column 522 completely "passes over" the moving column 220 and separates from the moving column 220.

[0125] Specifically, the moving column 220 will separate from the first mating column 522 before the first mating column 522 reaches the second rotation stop point.

[0126] When the moving column 220 pushes the first mating column 522, the first core 520 can rotate relative to the drive shaft 500, and the direction of rotation of the first core 520 relative to the drive shaft 500 is opposite to the direction of rotation of the drive shaft 500. The first core 520 drives the first mating ring 510 to rotate through the first connecting block 512, so that the first pusher 620 pushes the impurities on the surface of the filter plate 230 from the first opening into the first collection chamber.

[0127] After the moving column 220 separates from the first mating column 522, the first core 520 rotates in the opposite direction to reset under the action of the second elastic element, and the first pusher 620 retracts from the first collection chamber. This process is repeated to collect the impurities filtered from the surface of the filter plate 230 into the first collection chamber using the first pusher 620.

[0128] A first pressure sensor 621 is provided on the side of the first pusher 620 near the first opening to detect the force exerted when pushing impurities. If the force exerted by the first pusher 620 after pushing impurities into the first collection chamber increases significantly, it indicates that the first collection chamber may be filled with impurities.

[0129] Based on this, the amount of impurities in the insulating oil can be inferred by using the time it takes for the first collection chamber to be filled with impurities.

[0130] Specifically, the first collection cover 610 is flat and is arranged parallel to and spaced apart from the filter plate 230. The side of the first collection cover 610 near the drive shaft 500 is attached to the outer wall of the drive shaft 500, and the side of the first collection cover 610 near the inner wall of the reference tube 200 is attached to the inner wall of the reference tube 200. The first collection cover 610 is fan-shaped overall.

[0131] The side of the first collection cover 610 away from the first push block 620 is closed by the first end plate 630. The first end plate 630 is set perpendicular to the filter plate 230. The first end plate 630, the first collection cover 610 and the filter plate 230 together form the first collection cavity.

[0132] A second collection hood 640 is also provided on the side of the filter plate 230 near the first sealing plate 210. The second collection hood 640 is flat and is arranged parallel to and spaced apart from the filter plate 230. The side of the second collection hood 640 near the drive shaft 500 is attached to the outer wall of the drive shaft 500, and the side of the second collection hood 640 near the inner wall of the reference tube 200 is attached to the inner wall of the reference tube 200. The second collection hood 640 is also fan-shaped overall.

[0133] The side of the second collection cover 640 away from the first collection cover 610 is closed by the second end plate 650. The second end plate 650 is set perpendicular to the filter plate 230. The second end plate 650, the second collection cover 640 and the filter plate 230 together form a second collection cavity for receiving the first pusher 620.

[0134] In this embodiment, the side of the first push block 620 near the drive shaft 500 is in contact with the outer wall of the drive shaft 500, and the side of the first push block 620 near the inner wall of the reference tube 200 is in contact with the inner wall of the reference tube 200. The first push block 620 is also fan-shaped overall.

[0135] In this embodiment, the central angles of the first collection cover 610 and the second collection cover 640 are both less than 90°. For example, the central angles of the first collection cover 610 and the second collection cover 640 are both 70°, but it is not limited to this.

[0136] In the circumferential direction of the reference tube 200, the first collection cover 610 and the second collection cover 640 are arranged at intervals.

[0137] In this embodiment, the first end plate 630 and the second end plate 650 are respectively disposed on opposite sides of the drive shaft 500, and the surfaces of the first end plate 630 and the second end plate 650 are located on the same plane, but are not limited thereto.

[0138] The distances between the first collection cover 610 and the second collection cover 640 and the filter plate 230 are both adapted to the thickness of the first push block 620. The first mating ring 510 is located on the side of the first collection cover 610 and the second collection cover 640 closest to the filter plate 230.

[0139] When the first core 520 is at the first rotation stop, the first pusher 620 is located in the second collection chamber, and the first pusher 620 is simultaneously in contact with the filter plate 230 and the second collection cover 640, such as... Figure 8 and Figure 9 As shown.

[0140] When the moving column 220 pushes the first mating column 522 and is about to separate from it, the first push block 620 partially extends into the first collecting cavity, and the first push block 620 partially resides within the second collecting cavity. In this state, the first push block 620 simultaneously seals the openings of both the first and second collecting cavities. Figure 10 and Figure 11 As shown.

[0141] With this design, the first pusher 620 can more fully push the impurities on the surface of the filter plate 230 into the first collection chamber.

[0142] Furthermore, the detection components also include: a third collection hood 710, a fourth collection hood 730, and a second pusher 750.

[0143] The third collection hood 710 and the fourth collection hood 730 are both located on the side of the filter plate 230 near the first sealing plate 210. The third collection hood 710 and the fourth collection hood 730 are both flat and are parallel to and spaced apart from the filter plate 230.

[0144] The third collection hood 710 is disposed near the second collection hood 640. The side of the third collection hood 710 near the drive shaft 500 is in contact with the outer wall of the drive shaft 500, and the side of the third collection hood 710 near the inner wall of the reference tube 200 is in contact with the inner wall of the reference tube 200. The side of the third collection hood 710 near the second collection hood 640 is closed by the third end plate 720. The third end plate 720, the third collection hood 710, and the filter plate 230 together form a third collection chamber. The third end plate 720 is disposed perpendicular to the filter plate 230, and the third end plate 720 is in contact with the second end plate 650.

[0145] The fourth collection hood 730 is disposed close to the first collection hood 610. The side of the fourth collection hood 730 closest to the drive shaft 500 is in contact with the outer wall of the drive shaft 500, and the side of the fourth collection hood 730 closest to the inner wall of the reference tube 200 is in contact with the inner wall of the reference tube 200. The side of the fourth collection hood 730 closest to the first collection hood 610 is closed by the fourth end plate 740. The fourth end plate 740, the fourth collection hood 730, and the filter plate 230 together form a fourth collection chamber. The fourth end plate 740 is disposed perpendicular to the filter plate 230, and the fourth end plate 740 is in contact with the first end plate 630.

[0146] In this embodiment, the central angles of the third collection cover 710 and the fourth collection cover 730 are both less than 90°. For example, the central angles of the third collection cover 710 and the fourth collection cover 730 are both 70°, but it is not limited to this.

[0147] A second mating ring 530 is rotatably fitted onto the drive shaft 500. The second mating ring 530 is located on the side of both the third and fourth collection covers 710 and near the filter plate 230. A second push block 750 is fixedly connected to the second mating ring 530 and fits against the side of the filter plate 230 near the first sealing plate 210. The distances between the third and fourth collection covers 710 and the filter plate 230 are adapted to the thickness of the second push block 750.

[0148] The side of the second push block 750 closest to the drive shaft 500 is in contact with the outer wall of the drive shaft 500, and the side of the second push block 750 closest to the inner wall of the reference tube 200 is in contact with the inner wall of the reference tube 200. The second push block 750 is also fan-shaped overall.

[0149] The second mating ring 530 is located on the side of the first mating ring 510 away from the first sealing plate 210.

[0150] There is a gap between the first core 520 and the bottom of the first axial hole. The first core 520 has a second axial hole that passes through the first core 520 and is coaxial with the first core 520.

[0151] A second core 540 is rotatably fitted inside the second axial hole. One end of the second core 540 extends through the second axial hole to the bottom of the first axial hole, and the other end of the second core 540 extends outside the first core 520 and into the oil tank.

[0152] A second extension arm 541 is fixedly connected to one end of the second core 540 away from the filter plate 230. The second extension arm 541 is located inside the oil tank and extends toward the mating groove 410. The second extension arm 541 is located on the side of the rotating ring 400 away from the filter plate 230. In this embodiment, the second extension arm 541 is arranged radially along the second core 540.

[0153] The second extension arm 541 is fixedly connected to a second mating post 542, which extends toward the side where the rotating ring 400 is located. The end face of the second mating post 542 near the rotating ring 400 is located on the side of the rotating ring 400 away from the filter plate 230. In this embodiment, the second mating post 542 is arranged along the axial direction of the drive shaft 500.

[0154] Along the radial direction of the reference tube 200, the distance between the second mating post 542 and the outer wall of the reference tube 200 is the fourth spacing, and the third spacing < the fourth spacing < the second spacing.

[0155] The drive shaft 500 also has a second notch 531 that communicates with the first axial hole. The second notch 531 extends continuously in an arc shape along the circumference of the drive shaft 500. The second notch 531 is located on the side of the first notch 511 near the filter plate 230. The second mating ring 530 is sleeved on the second notch 531. The second core 540 and the second mating ring 530 are fixedly connected by a second connecting block 532, which is located inside the second notch 531.

[0156] The second core 540 has a third rotation stop and a fourth rotation stop. A third elastic element is fitted between the second core 540 and the drive shaft 500. The third elastic element is used to drive the second core 540 to rotate from the fourth rotation stop to the third rotation stop. The direction in which the third elastic element drives the second core 540 to rotate is the same as the direction of rotation of the drive shaft 500.

[0157] When the second core 540 is at the third rotation stop point, the second mating post 542 is close to the first end 411 of the mating groove 410. In the circumferential direction of the reference tube 200, there is a gap L2 between the plane where the end wall of the first end 411 is located and the second mating post 542. The width of the gap L2 is greater than or equal to the outer diameter of the moving post 220.

[0158] As the drive shaft 500 rotates, once the moving column 220 enters the gap L2, the drive shaft 500 continues to rotate, and the moving column 220 can push the second mating column 542 towards the fourth rotation stop. During the process of the moving column 220 pushing the second mating column 542 towards the fourth rotation stop, as the moving column 220 is gradually pushed into the reference tube 200 by the bottom wall of the mating groove 410, the distance between the second mating column 542 and the end of the moving column 220 near the rotating ring 400 will gradually decrease until the second mating column 542 completely "passes over" the moving column 220 and separates from the moving column 220.

[0159] Specifically, before the second mating column 542 reaches the fourth rotation stop point, the moving column 220 and the second mating column 542 will complete their separation.

[0160] When the moving column 220 pushes the second mating column 542, the second core 540 can rotate relative to the drive shaft 500 and the first core 520, and the direction of rotation of the second core 540 relative to the drive shaft 500 is opposite to the direction of rotation of the drive shaft 500. The second core 540 drives the second mating ring 530 to rotate through the second connecting block 532, so that the second pusher 750 pushes the impurities on the surface of the filter plate 230 into the third collection chamber.

[0161] After the moving column 220 separates from the second mating column 542, the second core 540 rotates in the opposite direction to reset under the action of the third elastic element, and the second pusher 750 retracts from the third collection chamber. This process is repeated to collect the impurities filtered from the surface of the filter plate 230 into the third collection chamber using the second pusher 750.

[0162] A second pressure sensor 751 is provided on the side of the second pusher 750 near the third collection hood 710 to detect the force exerted when pushing impurities. If the force exerted by the second pusher 750 after pushing impurities into the third collection chamber increases significantly, it indicates that the third collection chamber may be filled with impurities.

[0163] Based on this, the time it takes for the third collection chamber to be filled with impurities can be used to infer the impurity content in the insulating oil.

[0164] When the second core 540 is at the third rotation stop point, the second pusher 750 is located in the fourth collection chamber, and the second pusher 750 is simultaneously in contact with the filter plate 230 and the fourth collection cover 730, such as Figure 8 andFigure 9 As shown.

[0165] When the moving column 220 pushes the second mating column 542 and is about to separate from it, the second pusher 750 partially extends into the third collecting chamber, while still partially located within the fourth collecting chamber. In this state, the second pusher 750 simultaneously closes the openings of both the third and fourth collecting chambers.

[0166] Among them, the first mating post 522 and the second mating post 542 are provided with different mating grooves 410, such as Figures 2-4 As shown.

[0167] In other words, the third collection chamber, the fourth collection chamber, and the second pusher 750 can be regarded as an array arrangement of the first collection chamber, the second collection chamber, and the first pusher 620 in the circumferential direction of the filter plate 230, except that the actuation time of the first pusher 620 and the second pusher 750 is different.

[0168] With this design: when the first pusher 620 is actuated, it temporarily blocks the area between the first and second collecting chambers. During this time, the insulating oil can be filtered through the area between the third and fourth collecting chambers. When the second pusher 750 is actuated, it temporarily blocks the area between the third and fourth collecting chambers. At this time, the insulating oil can still be filtered through the area between the first and second collecting chambers. This design does not affect the normal filtration of the insulating oil.

[0169] In this embodiment, the filter plate 230 is located in the part of the reference tube 200 outside the oil tank. It can be understood that a slag discharge port (not shown in the figure, the slag discharge port is equipped with a corresponding detachable sealing component) can be opened on the outer wall of the reference tube 200 to communicate with the first collection chamber and the third collection chamber, so as to facilitate the cleaning of impurities in the first collection chamber and the third collection chamber.

[0170] In this embodiment, a positioning ring 550 is fitted onto the drive shaft 500, and the positioning ring 550 is rotatably engaged with the drive shaft 500. The positioning ring 550 is located near the moving column 220, and the positioning ring 550 is fixedly connected to the inner wall of the reference tube by the connecting column 551. A first elastic member abuts between the moving column 220 and the positioning ring 550.

[0171] Through the above design, the transformer provided in this application embodiment can simultaneously achieve the following functions: (1) promote the circulation of insulating oil; (2) filter and remove impurities from the insulating oil; (3) monitor and evaluate the content of impurities in the insulating oil; (4) collect impurities in the insulating oil in a concentrated manner; and (5) achieve self-cleaning of the filter plate 230.

[0172] In summary, the transformer with internal component safety monitoring function provided in this application embodiment can realize the safety monitoring of internal components, reduce the dependence on manual labor, and improve the monitoring accuracy of transformer operation safety.

[0173] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A transformer with internal component safety monitoring function, characterized in that, include: Transformer body and monitoring mechanism; The monitoring mechanism includes: a reference tube, a return tube, a rotating ring, a driver, and a detection component; One end of the reference tube is connected to the top of the oil tank of the transformer body, the other end of the reference tube is connected to the return pipe, and the end of the return pipe away from the reference tube is connected to the bottom of the oil tank. The end of the reference tube away from the return pipe extends into the oil tank, and the end of the reference tube away from the return pipe is closed by the first sealing plate; The rotating ring is disposed at the end of the reference tube away from the return tube, the rotating ring is coaxially arranged with the reference tube, and the rotating ring is located inside the oil tank; The inner ring wall of the rotating ring is provided with a mating groove, which extends along the circumference of the rotating ring. Along the circumference of the rotating ring, the mating groove has a first end and a second end opposite to each other, and the depth of the mating groove decreases in the direction from the first end to the second end. The mating grooves are multiple, arranged sequentially along the circumference of the rotating ring, with the first end of one of two adjacent mating grooves connected to the second end of the other. The reference tube has a radial hole corresponding to the rotating ring, and a moving column is fitted inside the radial hole. Along the axial direction of the radial hole, the moving column is slidably fitted into the radial hole and slidably sealed. The moving column has an axial through hole, and a first one-way mechanism is installed inside the axial through hole. The moving column is fitted with a first elastic element, which is used to drive the moving column to move out of the reference tube so that the moving column abuts against the bottom wall of the mating groove. A second one-way mechanism is installed inside the return pipe; A filter plate is also installed inside the reference tube, and the filter plate is located on the side of the radial hole near the return tube; the detection component is disposed near the filter plate for detecting impurities at the filter plate. The rotating ring is driven by the driver so that the rotating ring can rotate relative to the reference tube, thereby causing the moving column to move sequentially in each of the mating grooves, and the moving column can reciprocate in the radial hole, thereby driving the insulating oil in the reference tube to flow from the position of the moving column to the filter plate.

2. The transformer with internal component safety monitoring function according to claim 1, characterized in that, The end of the reference tube furthest from the first sealing plate is sealed by the second sealing plate, and the return tube is connected to the side wall of the reference tube; The reference tube is also provided with a drive shaft, which is coaxially arranged with the reference tube. The drive shaft passes through the first sealing plate and the second sealing plate, and both the first sealing plate and the second sealing plate are rotatably sealed with the drive shaft. The end of the drive shaft away from the second sealing plate is engaged with the rotating ring; the driver is located outside the transformer body, and the driver is engaged with the end of the drive shaft away from the first sealing plate.

3. The transformer with internal component safety monitoring function according to claim 2, characterized in that, The detection component includes: a first collection hood and a first pusher; The first collection cover is disposed on the side of the filter plate near the first sealing plate, and the first collection cover and the filter plate enclose each other to form a first collection cavity for collecting impurities; along the circumference of the drive shaft, a first opening is provided on one side of the first collection cover; The drive shaft is rotatably fitted with a first mating ring, the first push block is fixedly connected to the first mating ring, and the first push block is in contact with the side of the filter plate near the first sealing plate. The drive shaft has a first axial hole at one end face near the first sealing plate, and the first axial hole extends to the filter plate. A first core is rotatably fitted inside the first axial hole; a first extension arm is fixedly connected to the end of the first core away from the filter plate, the first extension arm is located inside the oil tank and extends toward the mating groove, and the first extension arm is located on the side of the rotating ring away from the filter plate. The first extension arm is fixedly connected to a first mating post, which extends toward the side where the rotating ring is located; the end face of the first mating post near the rotating ring is located on the side of the rotating ring away from the filter plate. Along the radial direction of the reference tube, the distance between the first mating post and the outer wall of the reference tube is the first spacing, the distance between the bottom wall of the groove at the first end and the outer wall of the reference tube is the second spacing, and the distance between the bottom wall of the groove at the second end and the outer wall of the reference tube is the third spacing; wherein, the third spacing < the first spacing < the second spacing; The drive shaft also has a first notch communicating with the first axial hole. The first notch extends continuously in an arc shape along the circumference of the drive shaft. The first mating ring is sleeved on the first notch. The first core and the first mating ring are fixedly connected by a first connecting block, which is located inside the first notch. The side wall of the moving column near the first sealing plate is located on the side of the rotating ring away from the filter plate; The first core has a first rotation stop point and a second rotation stop point. The first core is fitted with a second elastic element, which is used to drive the first core to rotate from the second rotation stop point to the first rotation stop point. The direction in which the second elastic element drives the first core to rotate is the same as the rotation direction of the drive shaft. When the first core is located at the first rotation stop point, the first mating post is close to the first end of the mating groove. In the circumferential direction of the reference tube, there is a gap between the plane where the end wall of the first end is located and the first mating post. The width of the gap is greater than or equal to the outer diameter of the moving post. When the moving column enters the gap, the drive shaft rotates, and the moving column can push the first mating column to move towards the second rotation stop point; wherein, before the first mating column reaches the second rotation stop point, the moving column separates from the first mating column; When the moving column pushes the first mating column, the first core body drives the first mating ring to rotate, so that the first pusher pushes the impurities on the surface of the filter plate from the first opening into the first collection chamber; A first pressure sensor is provided on the side of the first push block near the first opening.

4. The transformer with internal component safety monitoring function according to claim 3, characterized in that, The first collection cover is flat and is parallel to and spaced apart from the filter plate. The side of the first collection cover near the drive shaft is in contact with the outer wall of the drive shaft, and the side of the first collection cover near the inner wall of the reference tube is in contact with the inner wall of the reference tube. The side of the first collection cover away from the first push block is closed by a first end plate. The first end plate, the first collection cover and the filter plate together form the first collection cavity. A second collection cover is also provided on the side of the filter plate near the first sealing plate. The second collection cover is flat and is parallel to and spaced apart from the filter plate. The side of the second collection cover near the drive shaft is attached to the outer wall of the drive shaft, and the side of the second collection cover near the inner wall of the reference tube is attached to the inner wall of the reference tube. The side of the second collection cover away from the first collection cover is closed by a second end plate. The second end plate, the second collection cover, and the filter plate together form a second collection cavity for receiving the first push block. The distance between the first collection cover and the second collection cover and the filter plate is adapted to the thickness of the first push block; the first mating ring is located on the side of the first collection cover and the second collection cover that is closer to the filter plate. When the first core is at the first rotation stop point, the first push block is located in the second collection cavity; when the moving column is about to separate from the first mating column, the first push block partially extends into the first collection cavity, and the first push block partially is located inside the second collection cavity.

5. The transformer with internal component safety monitoring function according to claim 4, characterized in that, The detection assembly further includes: a third collection hood, a fourth collection hood, and a second pusher; The third and fourth collection hoods are both located on the side of the filter plate closest to the first sealing plate; both the third and fourth collection hoods are flat and are parallel to and spaced apart from the filter plate. The third collection hood is disposed close to the second collection hood; the side of the third collection hood close to the drive shaft is in contact with the outer wall of the drive shaft, and the side of the third collection hood close to the inner wall of the reference tube is in contact with the inner wall of the reference tube; the side of the third collection hood close to the second collection hood is closed by a third end plate, and the third end plate, the third collection hood, and the filter plate together form a third collection cavity; The fourth collection hood is disposed close to the first collection hood; the side of the fourth collection hood close to the drive shaft is attached to the outer wall of the drive shaft, and the side of the fourth collection hood close to the inner wall of the reference tube is attached to the inner wall of the reference tube; the side of the fourth collection hood close to the first collection hood is closed by a fourth end plate, and the fourth end plate, the fourth collection hood, and the filter plate together form a fourth collection cavity. The drive shaft is rotatably fitted with a second mating ring, which is located on the side of both the third and fourth collection covers that are close to the filter plate; the second push block is fixedly connected to the second mating ring, and the second push block is in contact with the side of the filter plate that is close to the first sealing plate; the distance between the third and fourth collection covers and the filter plate is adapted to the thickness of the second push block; The second mating ring is located on the side of the first mating ring that is furthest from the first sealing plate; A gap is left between the first core and the bottom of the first axial hole, and the first core is provided with a second axial hole, which penetrates the first core; A second core is rotatably fitted inside the second axial hole; a second extension arm is fixedly connected to one end of the second core away from the filter plate, the second extension arm is located inside the oil tank and extends toward the mating groove, and the second extension arm is located on the side of the rotating ring away from the filter plate; The second extension arm is fixedly connected to a second mating post, which extends toward the side where the rotating ring is located; the end face of the second mating post near the rotating ring is located on the side of the rotating ring away from the filter plate. Along the radial direction of the reference tube, the distance between the second mating post and the outer side wall of the reference tube is the fourth spacing, wherein the third spacing < the fourth spacing < the second spacing; The drive shaft also has a second notch that communicates with the first axial hole. The second notch extends continuously in an arc shape along the circumference of the drive shaft. The second mating ring is sleeved on the second notch. The second core and the second mating ring are fixedly connected by a second connecting block, which is located inside the second notch. The second core has a third rotation stop point and a fourth rotation stop point. The second core is fitted with a third elastic element, which is used to drive the second core to rotate from the fourth rotation stop point to the third rotation stop point. The direction in which the third elastic element drives the second core to rotate is the same as the rotation direction of the drive shaft. When the second core is located at the third rotation stop point, the second mating post is close to the first end of the mating groove. In the circumferential direction of the reference tube, there is a gap between the plane where the end wall of the first end is located and the second mating post. The width of the gap is greater than or equal to the outer diameter of the moving post. When the moving column enters the gap, the drive shaft rotates, and the moving column can push the second mating column to move towards the fourth rotation stop point; wherein, before the second mating column reaches the fourth rotation stop point, the moving column separates from the second mating column; When the moving column pushes the second mating column, the second core drives the second mating ring to rotate, so that the second pusher pushes the impurities on the surface of the filter plate into the third collection chamber; A second pressure sensor is provided on the side of the second pusher near the third collection hood; When the second core is located at the third rotation stop point, the second push block is located in the fourth collection cavity; when the moving column is about to separate from the second mating column, the second push block partially extends into the third collection cavity, and the second push block partially is located inside the fourth collection cavity; The first mating post and the second mating post are provided with different mating grooves.

6. The transformer with internal component safety monitoring function according to claim 5, characterized in that, Both the first extension arm and the second extension arm are arranged radially along the drive shaft, and both the first mating post and the second mating post are arranged axially along the drive shaft.

7. The transformer with internal component safety monitoring function according to claim 5, characterized in that, The number of mating grooves is 4.

8. The transformer with internal component safety monitoring function according to claim 5, characterized in that, The drive shaft is fitted with a positioning ring, which is rotatably engaged with the drive shaft; the positioning ring is located close to the moving column, and the positioning ring is fixedly connected to the inner wall of the reference tube by a connecting column; the first elastic element abuts between the moving column and the positioning ring.

Images