An oil-immersed power transformer with a high energy efficiency level

Abstract

The present invention relates to the technical field of oil-immersed transformers, and provides an oil-immersed power transformer with a high energy efficiency level, which includes a casing. The casing has a receiving cavity and an oil outlet channel, and the receiving cavity is communicated with the oil outlet channel. The direction of the oil outlet channel is defined as the longitudinal direction, and the direction perpendicular to the longitudinal direction in the horizontal direction is defined as the transverse direction. A plurality of rotating plate members are located in the receiving cavity, and are rotatably and slidably arranged on the casing. The sliding direction is along the longitudinal direction, and the rotation axis is along the transverse direction. A first brush member is arranged in the receiving cavity to be lifted and longitudinally slidable. The first brush member has first brush portions respectively located at both ends of the first brush member. After the first brush portions move, they are slidably abutted against the surfaces of the plurality of rotating plate members or the bottom wall of the receiving cavity. Through the above technical solution, the problem in the prior art that impurities will deposit at the bottom of the transformer oil cavity, and it is difficult for suction to discharge and clean the impurities deposited at the bottom well, and the accumulation of the remaining impurities will affect the normal operation of the transformer is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil-immersed transformers, and more specifically, to an oil-immersed power transformer with a high energy efficiency level. Background Art

[0002] The presence of impurities and scum in the oil inside an oil-immersed transformer is a common problem. Metal components inside the transformer, such as copper coils and iron cores, will experience wear due to long-term vibration and thermal expansion, and the metal particles generated by this wear will mix into the oil. Dust, moisture, microorganisms, etc. in the air may also enter the transformer oil through poorly sealed parts, becoming a source of impurities. The transformer may experience arc or partial discharge during operation due to various reasons, and these phenomena will generate carbon black and metal particles. During use, this part of the impurities will deposit at the bottom of the transformer oil chamber, and it is difficult for suction to effectively discharge and clean the impurities deposited at the bottom. The accumulation of the remaining impurities will affect the normal operation of the transformer. The time for suction and refueling is relatively long, and when replacing the cooling oil, the whole needs to be replaced and subsequent multi-stage cleaning is required for recycling. The efficiency of recycling and treatment is relatively low. Summary of the Invention

[0003] The present invention provides an oil-immersed power transformer with a high energy efficiency level, which solves the problem in the related art that impurities will deposit at the bottom of the transformer oil chamber, it is difficult for suction to effectively discharge and clean the impurities deposited at the bottom, and the accumulation of the remaining impurities will affect the normal operation of the transformer.

[0004] The technical solution of the present invention is as follows:

[0005] An oil-immersed power transformer with a high energy efficiency level, comprising:

[0006] A housing having a receiving cavity and an oil outlet channel, the receiving cavity being in communication with the oil outlet channel. Define the direction of the oil outlet channel as longitudinal, and the direction perpendicular to the longitudinal direction in the horizontal direction as transverse.

[0007] Rotating plate members, which are located in the receiving cavity and are several in number. They are rotatably and slidably arranged on the housing, the sliding direction is along the longitudinal direction, and the rotation axis is along the transverse direction.

[0008] A first brush member, which is arranged to be lifted and longitudinally slidable in the receiving cavity. The first brush member has a first brush part, and the first brush parts are arranged in pairs and are respectively located at both ends of the first brush member.

[0009] The first brush member is configured such that after the first brush member rises and slides away from the oil outlet passage, the first brush portion at the upper end of the first brush member slidably abuts against the rotating plate member for cleaning the rotating plate member; after the first brush member descends and slides towards the oil outlet passage, the first brush portion at the lower end of the first brush member slidably abuts against the bottom wall of the accommodating cavity for cleaning the bottom wall of the accommodating cavity.

[0010] Spacer members, there are several spacer members, which are arranged at intervals longitudinally in the accommodating cavity. A rotating space is formed between two adjacent spacer members. The rotating plate member is located in the rotating space. The spacer members and the rotating plate member together divide the accommodating cavity into an upper accommodating cavity and a lower accommodating cavity. The oil outlet passage and the first brush member are both located in the lower accommodating cavity.

[0011] As a further technical solution, the upper part of the spacer member has a first inclined surface portion, and the lower end of the first inclined surface portion faces one side of the plate surface of the rotating plate member.

[0012] As a further technical solution, the machine housing further has a partition cavity, the partition cavity is located around the lower accommodating cavity, and further includes:

[0013] An impeller, the impeller is rotatably arranged in the oil outlet passage, and the impeller has a wheel shaft.

[0014] A bidirectional lead screw, the bidirectional lead screw is rotatably arranged in the partition cavity and its length direction is along the longitudinal direction. The wheel shaft is in transmission connection with the bidirectional lead screw.

[0015] A first moving member, the first moving member is threadedly connected to the bidirectional lead screw and meshes with the bidirectional lead screw.

[0016] A second moving member, the second moving member is slidably arranged on the first moving member, and the first brush member is arranged on the second moving member.

[0017] As a further technical solution, the side wall of the lower accommodating cavity has an annular guiding groove, the second moving member has a sliding portion, the sliding portion is slidably arranged in the annular guiding groove, and one side of the annular guiding groove has a vertical groove. Further included are:

[0018] A clamping member, the clamping member is slidably arranged in the inner wall on one side of the annular guiding groove in a lifting manner. The clamping member has a second inclined surface portion, and when the sliding portion slidably abuts against the second inclined surface portion, it drives the clamping member to slide down.

[0019] An elastic member, one end of the elastic member is arranged on the bottom wall of the vertical groove, and the other end is arranged on the clamping member, providing a force for the clamping member to slide up.

[0020] As a further technical solution, the first brush member has a plate portion, and the plate portion has a through hole, and further includes:

[0021] A rotating plate, which is swingably arranged on the plate portion and is located on one side of the through hole. The swing axis is parallel to the rotation axis of the first brush member, and after swinging, it opens or blocks the through hole.

[0022] As a further technical solution, it further includes:

[0023] Scraping frames, there are two scraping frames, which are arranged in pairs on both sides of the first brush member. The two lateral sides of the scraping frames have scraping portions, and the scraping portions slide on the side wall of the lower accommodation cavity. The bottom of the scraping frame has a second brush portion. After the first brush member descends and slides, it drives the second brush portion to abut against the bottom wall of the lower accommodation cavity.

[0024] As a further technical solution, one spacer member and the rotating plate member on the side of the spacer member away from the oil outlet channel together form a flipping assembly. The rotating shaft of the rotating plate member is eccentrically arranged relative to the rotating plate member, and further includes:

[0025] A sliding frame, which is longitudinally slidably arranged on the rotating plate member and the spacer member of a group of the flipping assemblies. The sliding frame has a strip-shaped guiding groove. The sliding frame has a first rack portion, and the first rack portion is located above the strip-shaped guiding groove. The sliding frame has a pushing portion, and the pushing portion is located in the strip-shaped guiding groove.

[0026] A first gear, which is arranged on the rotating shaft of the rotating plate member.

[0027] A second gear, which is rotatably arranged on the spacer member. The second gear meshes with the first rack portion. The rotating shafts of the rotating plate member and the second gear are both slidably arranged in the strip-shaped guiding groove. After the second gear rotates, it drives the sliding frame to slide through the first rack portion. After sliding, the pushing portion slides to abut against the rotating shaft of the rotating plate member and pushes the rotating plate member to move.

[0028] As a further technical solution, the upper end of the scraping frame has a second rack portion, and the second rack portion meshes with the second gear. After the second rack portion slides, it drives the second gear to rotate.

[0029] As a further technical solution, it further includes: a bracket, and the bracket is arranged at the bottom of the machine shell.

[0030] The working principle and beneficial effects of the present invention are:

[0031] In the present invention, the accommodating cavity is a cavity for accommodating core components of a transformer such as an iron core and windings, as well as insulating oil. The oil outlet channel is generally in a closed state. When oil change is required, a suction pump is connected to the oil outlet channel. A rotating plate member is arranged in the accommodating cavity. A plurality of rotating plate members form an intermediate plate, which is located above the bottom wall of the accommodating cavity. During the deposition of impurities, they do not accumulate at the bottom of the accommodating cavity, but accumulate at the positions of the plurality of rotating plate members. After the rotating plate members are flipped, the first brush member rises and then slides away from the oil outlet channel, and can brush off the impurities deposited on the rotating plate members. After the first brush member descends, it slides towards the direction close to the oil outlet channel. The first brush member located below slidably abuts against the bottom wall of the accommodating cavity, and sweeps the small amount of impurities deposited on the bottom of the accommodating cavity. The contact time of this part of the impurities with the bottom wall of the accommodating cavity is short, and the adhesion is poor, so it is relatively easy to sweep off. The setting of this solution can provide a position for the deposition and storage of impurities, which is convenient for cleaning. At the same time, the impurities cleaned out are mainly located in the space between the rotating plate members and the bottom of the accommodating cavity. During the maintenance process of discharging impurities, only the liquid below containing a large amount of impurities needs to be discharged, and then an equal amount of insulating oil is injected, so that a faster and more efficient oil change and maintenance work can be realized. In addition, during the overall suction and refilling process, the oil outlet channel can preferentially discharge the oil liquid containing a relatively large amount of impurities, and collect it separately from the clear liquid above. Different treatment levels improve the efficiency of recycling. The setting of the first brush member also helps to improve the efficiency of discharging the impurity liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above characteristics, technical features, advantages and their implementation manners of the present invention will be further described below in a clear and understandable manner in conjunction with the drawings in the preferred embodiments.

[0033] Figure 1 Structural schematic diagram of the present invention;

[0034] Figure 2 Internal structural schematic diagram of the lower accommodating cavity of the present invention;

[0035] Figure 3 Another internal structural schematic diagram of the lower accommodating cavity of the present invention;

[0036] Figure 4 For Figure 2 Partial structural schematic diagram of part A in

[0037] Figure 5 For Figure 4 Partial internal structural schematic diagram at the

[0038] Figure 6 Structural schematic diagram of the first brush member and the scraping frame of the present invention;

[0039] Figure 7 Structural schematic diagram of the flipping assembly of the present invention;

[0040] Figure 8 This is a schematic structural diagram of an implementation manner of the annular guide groove and the sliding part in the present invention.

[0041] In the figure: housing - 1, accommodation cavity - 101, oil outlet channel - 102, upper accommodation cavity - 103, lower accommodation cavity - 104, partition cavity - 105, annular guide groove - 106, vertical groove - 107, rotating plate member - 2, first brush member - 3, first brush part - 301, through hole - 302, plate part - 303, spacer plate member - 4, rotating space - 401, first inclined surface part - 402, flipping assembly - 403, impeller - 5, wheel shaft - 501, bidirectional lead screw - 6, first moving member - 7, second moving member - 8, sliding part - 801, clamping member - 9, second inclined surface part - 901, rotating plate - 10, scraping frame - 11, scraping part - 1101, second brush part - 1102, second rack part - 1103, sliding frame - 12, strip-shaped guide groove - 1201, first rack part - 1202, pushing part - 1203, first gear - 13, second gear - 14, bracket - 15, elastic member - 16. Detailed implementation manner

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other implementation manners can also be obtained.

[0043] For the sake of simplicity of the drawings, only the parts related to the invention are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, in some drawings, parts with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0044] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0045] In addition, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0046] Referring Figures 1 to 8 , an embodiment of the present invention provides a high-efficiency-class oil-immersed power transformer, including a casing 1. The casing 1 has a receiving cavity 101 and an oil outlet channel 102. The receiving cavity 101 communicates with the oil outlet channel 102. The direction of the oil outlet channel 102 is defined as the longitudinal direction, and the direction perpendicular to the longitudinal direction in the horizontal direction is defined as the transverse direction. The rotating plate members 2 are located in the receiving cavity 101 and are plural. They are rotatably and slidably arranged on the casing 1, the sliding direction is along the longitudinal direction, and the rotation axis is along the transverse direction. The first brush member 3 is arranged to be lifted and longitudinally slid in the receiving cavity 101. The first brush member 3 has a first brush portion 301. The first brush portions 301 are arranged in pairs and are respectively located at both ends of the first brush member 3. The first brush portion 301 is configured such that after being driven by the rotating plate member 2 to rise and slide away from the oil outlet channel 102, the first brush portion 301 at the upper end of the first brush member 3 slidably abuts against the rotating plate member 2 for cleaning the rotating plate member 2; after the first brush portion 301 is driven by the first brush member 3 to descend and slide towards the oil outlet channel 102, the first brush portion 301 at the lower end of the first brush member 3 slidably abuts against the bottom wall of the receiving cavity 101 for cleaning the bottom wall of the receiving cavity 101.

[0047] In this embodiment, considering that impurities generated during the operation of the transformer will be deposited at the bottom of the oil chamber, it is difficult to clean and discharge the impurities deposited at the bottom by suction. The accumulation of remaining impurities will affect the normal operation of the transformer. The accommodating chamber 101 in this solution is a chamber for accommodating the core components of the transformer such as the iron core and winding, as well as insulating oil. The oil outlet channel 102 is generally in a closed state. When oil replacement is required, a suction pump is connected to the oil outlet channel 102. A rotating plate member 2 is arranged in the accommodating chamber 101. A plurality of rotating plate members 2 form an intermediate plate, which is located above the bottom wall of the accommodating chamber 101. During the deposition of impurities, they will not accumulate at the bottom of the accommodating chamber 101, but accumulate at the positions of the plurality of rotating plate members 2. After the rotating plate member 2 is flipped, the first brush member 3 can slide away from the oil outlet channel 102 after rising, and brush off the impurities deposited on the rotating plate member 2. After the first brush member 3 descends and slides towards the oil outlet channel 102, the first brush member 3 located below slides in contact with the bottom wall of the accommodating chamber 101, and sweeps the small amount of impurities deposited on the bottom of the accommodating chamber 101. The contact time of this part of the impurities with the bottom wall of the accommodating chamber 101 is short, and the adhesion is poor, so it is relatively easy to sweep them off. The setting of this solution can provide a position for depositing and storing impurities, which is convenient for cleaning. At the same time, the impurities cleaned out are mainly located in the space between the rotating plate member 2 and the bottom of the accommodating chamber 101. During the maintenance process of discharging impurities, only the liquid below containing a large amount of impurities needs to be discharged, and then an equal amount of insulating oil is injected, so that more rapid and efficient oil replacement and maintenance work can be realized. In addition, during the overall suction and refilling process, the oil outlet channel 102 can preferentially discharge the oil liquid containing a relatively large amount of impurities, and collect it separately from the clear liquid above. Different treatment levels improve the efficiency of recycling. The setting of the first brush member 3 also helps to improve the efficiency of discharging the impurity liquid.

[0048] Furthermore, it further includes spacer plate members 4. There are a plurality of spacer plate members 4, which are arranged at intervals longitudinally in the accommodating chamber 101. A rotating space 401 is formed between two adjacent spacer plate members 4. The rotating plate member 2 is located in the rotating space 401. The spacer plate members 4 and the rotating plate member 2 together divide the accommodating chamber 101 into an upper accommodating chamber 103 and a lower accommodating chamber 104. The oil outlet channel 102 and the first brush member 3 are both located in the lower accommodating chamber 104.

[0049] In this embodiment, a plurality of partition plates 4 are fixedly arranged in the accommodating chamber 101, and the rotating space 401 between the partition plates 4 provides a rotating position for the rotating plate 2. When the rotating plate 2 rotates to be parallel to the bottom wall of the accommodating chamber 101, the rotating plate 2 and the partition plates 4 together form a complete plane, which can divide the accommodating chamber 101 into an upper accommodating chamber 103 and a lower accommodating chamber 104, that is, the deposition of impurities will occur at the bottom of the upper accommodating chamber 103. When it is necessary to perform suction and oil change, the impurities are moved to the lower accommodating chamber 104 by rotating the rotating plate 2, and cleaning and suction are performed in the lower accommodating chamber 104. The oil initially sucked out is mostly the oil with more impurities entering the accommodating chamber 101, so that the oil in the upper accommodating chamber 103 remains in a relatively clean state, and new oil can be further added for use or suctioned as a whole in batches, both of which can greatly improve the treatment efficiency of the old insulating oil.

[0050] Furthermore, the upper portion of the partition plate 4 has a first inclined surface 402 , and the lower end of the first inclined surface 402 faces one side of the plate surface of the rotating plate 2 .

[0051] In the present embodiment, considering that impurities may be deposited on the spacer plate 4 and are difficult to flip over for cleaning, an upper first inclined surface portion 402 is provided on the spacer plate 4. The upper first inclined surface portion 402 can guide the deposited impurities so that most of the impurities falling on the upper first inclined surface portion 402 fall onto the rotating plate 2, and the subsequent flipping of the rotating plate 2 brings these impurities into the lower accommodating chamber 104 for cleaning and collection. The present design further reduces the amount of impurities remaining in the upper accommodating chamber 103, and further improves the efficiency and stability of oil replacement and impurity cleaning.

[0052] Furthermore, the casing 1 also has a partition chamber 105, which is located around the lower accommodating chamber 104, and also includes an impeller 5 rotatably set in the oil outlet channel 102. The impeller 5 has a wheel shaft 501, and the bidirectional screw 6 is rotatably set in the partition chamber 105, and the length direction is along the longitudinal direction. The wheel shaft 501 is transmission connected to the bidirectional screw 6, the first moving member 7 is threadedly connected to the bidirectional screw 6 and meshed with the bidirectional screw 6, the second moving member 8 is slidably set on the first moving member 7, and the first brush member 3 is set on the second moving member 8.

[0053] In this embodiment, considering that it is difficult to provide a safe and stable working environment for the active drive device in the transformer oil cavity ring, this solution is provided with an impeller 5. As the external pump sucks the oil, the oil drives the impeller 5 to rotate. The rotation of the impeller 5 serves as the power source for subsequent transmission. A partition chamber 105 is provided in the casing 1. The partition chamber 105 can be separated from the accommodating chamber 101 to prevent the internal cleaning process from affecting the transmission system. In an environment with a lot of oil, the screw rod and the gear can each be well lubricated and transmitted. The wheel shaft 501 of the impeller 5 is connected to the bidirectional screw rod 6 through a gear set fixed on the casing 1. An internal thread is provided on the first moving member 7, which is threadedly connected to the bidirectional screw rod 6. A second moving member 8 is provided on the first moving member 7 to slide up and down, providing further freedom for the first brush member 3, and can achieve more precise motion control while stably transmitting the first brush member 3.

[0054] Further, the side wall of the lower accommodating chamber 104 has an annular guide groove 106, the second moving member 8 has a sliding portion 801, the sliding portion 801 is slidably arranged in the annular guide groove 106, and one side of the annular guide groove 106 has a vertical groove 107, and further includes:

[0055] The clamping member 9 is arranged on the inner wall of one side of the annular guide groove 106 for lifting and sliding. The clamping member has a second inclined surface 901. The sliding portion 801 slides against the second inclined surface 901 and drives the clamping member 9 to slide down.

[0056] The elastic member 16 has one end disposed on the bottom wall of the vertical groove 107 and the other end disposed on the clamping member 9 to provide a force for the clamping member 9 to slide upward.

[0057] In this embodiment, an annular guide groove 106 is provided on the side wall of the lower accommodating chamber 104. The annular guide groove 106 can provide a guiding effect for the annular track between the sliding parts 801. The implementation method can be set to the cooperation of the insertion part and the groove. The sliding part 801 on the second movable member 8 is slidably set in the annular guide groove 106. The sliding part 801 is guided by the annular guide groove 106, which can provide a good guiding effect for the upstroke and downstroke of the first brush member 3 and the process of converting the upstroke and downstroke, so that the contact force and cleaning effect of the first brush member 3 with the rotating plate member 2 or the bottom wall of the accommodating chamber 101 can be kept stable during the reciprocating sliding process. In addition, a clamp 9 is provided at the rising part of the annular guide groove 106, that is, at one end close to the oil outlet channel 102.

[0058] A vertical groove 107 is provided in the annular guide groove 106, and a clamping member 9 under the action of an elastic member 16 is arranged inside. After the sliding member slides onto the second inclined surface portion 901, it drives the clamping member 9 to slide downward to make way for the sliding portion 801. After the sliding portion 801 slides past the second inclined surface portion 901, the downward force on the clamping member 9 weakens, and it slides upward under the action of the elastic member 16. At the same time, under the power series connection of the bidirectional lead screw 6, it drives the sliding portion 801 to slide to the upper half track of the annular guide groove 106. This ensures the stability of the state and helps the start-up stability of the next round of work.

[0059] Furthermore, the first brush member 3 has a plate portion 303, and the plate portion 303 has a through hole 302. It further includes: a rotating plate 10 is swingably arranged on the plate portion 303 and is located on one side of the through hole 302. The swing axis is parallel to the rotation axis of the first brush member 3, and after swinging, it opens or blocks the through hole 302.

[0060] In this embodiment, the first brush member 3 has a plate portion 303, and a through hole 302 is provided on the plate portion 303. When the first brush member 3 moves away from the oil outlet channel 102, that is, during the cleaning process of the rotating plate member 2, the impurities brushed off can pass through the through hole 302, preventing them from being driven by the first brush member 3 and accumulating on one side of the lower accommodation cavity 104 and being unable to be discharged smoothly. At the same time, a rotating plate 10 is also provided. The rotating plate 10 swings unidirectionally, and the swinging direction is towards the oil outlet channel 102, and the swinging to the other side is restricted. This design enables the oil liquid to drive the rotating plate 10 to rotate during the oil pumping process, opening the through hole 302, reducing the resistance of the oil liquid to the first brush member 3, and enabling the impurities to enter the space between the first brush member 3 and the oil outlet channel 102. When the first brush member 3 moves back from one side of the accommodation cavity 101 to the side of the oil outlet channel 102, it can concentrate and discharge the impurities accumulated in this space. This design also improves the efficiency of the first brush member 3 in driving the impurities to be discharged.

[0061] Furthermore, it further includes scraping frames 11. There are two scraping frames 11, which are arranged in pairs on both sides of the first brush member 3. The two transverse sides of the scraping frames 11 have scraping portions 1101, and the scraping portions 1101 slide on the side walls of the lower accommodation cavity 104. The bottom of the scraping frames 11 has second brush portions 1102. After the first brush member 3 descends and slides, it drives the second brush portions 1102 to abut against the bottom wall of the lower accommodation cavity 104.

[0062] In this embodiment, considering that impurities are also likely to deposit on the side walls and corners of the accommodation cavity 101 and are difficult to clean, scraping frames 11 are provided on both sides of the first brush member 3. The two sides have scraping portions 1101. During the sliding process of the scraping frames 11, the scraping portions 1101 can remove the fine impurities attached to the side walls, and the impurities in the corners are cleaned by the second brush portions 1102 at the bottom of the scraping frames 11, which is convenient for centralized and rapid processing during the suction process.

[0063] Furthermore, a spacer member 4 and a rotating plate member 2 on the side of the spacer member 4 away from the oil outlet passage 102 together form a flipping assembly 403. The rotating shaft of the rotating plate member 2 is eccentrically arranged relative to the rotating plate member 2. There is also a sliding frame 12 longitudinally slidably arranged on the rotating plate member 2 and the spacer member 4 of a set of flipping assemblies 403. The sliding frame 12 has a strip-shaped guide groove 1201. The sliding frame 12 has a first rack portion 1202, and the first rack portion 1202 is located above the strip-shaped guide groove 1201. The sliding frame 12 has a pushing portion 1203, and the pushing portion 1203 is located in the strip-shaped guide groove 1201. A first gear 13 is arranged on the rotating shaft of the rotating plate member 2, and a second gear 14 is rotatably arranged on the spacer member 4. The second gear 14 meshes with the first rack portion 1202. The rotating shafts of the rotating plate member 2 and the second gear 14 are both slidably arranged in the strip-shaped guide groove 1201. After the second gear 14 rotates, it drives the sliding frame 12 to slide through the first rack portion 1202. After sliding, the pushing portion 1203 slides to abut against the rotating shaft of the rotating plate member 2, and pushes the rotating plate member 2 to move.

[0064] In this embodiment, a spacer member 4 and a rotating plate member 2 are grouped together. The fixed spacer member 4 provides a basis for the movement of the rotating plate member 2. A sliding frame 12 is also provided. The rotating shaft of the rotating plate member 2 and the second gear 14 are arranged side by side and slidably disposed in the strip-shaped guiding groove 1201. After the first gear 13 is driven to rotate, it drives the sliding frame 12 to slide towards the oil outlet passage 102 through meshing with the first rack portion 1202. After sliding, one side of the strip-shaped guiding groove 1201 abuts against the rotating shaft of the rotating plate member 2, driving the rotating plate member 2 to slide. Subsequently, driving the first gear 13 to rotate can drive the rotating plate 10 to rotate. Finally, after the rotating plate member 2 flips and slides a certain distance towards the oil outlet passage 102, the side of the rotating plate member 2 with impurities attached can be flipped into the lower accommodation cavity 104 and move closer to the first brush portion 301 of the first brush member 3, enabling the impurities on the rotating plate member 2 to be cleaned more quickly. After the scraping frame 11 slides, the second rack portion 1103 located on the scraping frame 11 slides accordingly, and the second gear 14 meshing with the second rack portion 1103 rotates. The position where the second gear 14 is disposed does not slide, causing the second gear 14 to only rotate. At the same time, after rotation, it drives the first rack portion 1202 meshing with the second gear 14 to slide, that is, drives the sliding frame 12 to slide. As the scraping frame 11 continues to slide, the second rack portion 1103 meshes with the first gear 13 again, driving the rotating plate member 2 to rotate. During meshing, the second rack portion 1103 and the second gear 14 are still not disengaged from meshing. Finally, the effect of sliding while rotating is achieved. A margin is left between the strip-shaped guiding groove 1201 and the rotating shaft of the first gear 13 to prevent the sliding frame 12 from being driven to slide first and then the first gear from being driven to rotate, avoiding jamming caused by the time difference between the two. Since the sliding direction of the rotating plate member 2 is opposite to the sliding direction of the scraping frame 11, jamming will not occur between the second rack portion 1103 and the first gear 13. Instead, it will accelerate the rotation speed of the first gear 13, making the flipping speed of the rotating plate member 2 faster. The rotating shaft of the rotating plate member 2 is eccentrically arranged, enabling most of the plate surface with impurities attached to be located in the lower accommodation cavity 104 and be scrubbed by the first brush member 3. At the same time, after the rotating plate member 2 rotates, the opened part of the rotating space 401 is on the side of the surface of the rotating plate member 2 with impurities attached, and the opening on the other side is smaller. With the external pumping process, a liquid flow is generated on this side, driving the impurities to flow into the lower accommodation cavity 104, which can largely prevent the impurities from spilling into the upper accommodation cavity 103 due to the movement of the rotating plate member 2 and the brushing work on it.

[0065] Further, the upper end of the scraping frame 11 has a second rack portion 1103. The second rack portion 1103 meshes with the second gear 14. After the second rack portion 1103 slides, it drives the second gear 14 to rotate.

[0066] In this embodiment, a second rack portion 1103 is provided on the scraping frame 11. During the sliding process of the scraping frame 11, the second rack portion 1103 meshes with the second gear 14 and the first gear 13 in sequence. During the meshing process of the first gear 13, it does not disengage from the second gear 14. Since the length of the strip-shaped guide groove 1201 is greater than the distance between the first gear 13 and the second gear 14, when the second gear 14 meshes with the second rack portion 1103 and starts to drive the sliding frame 12 to slide, it will not drive the rotating plate member 2 to slide. When the scraping frame 11 continues to slide until the second rack portion 1103 meshes with the first gear 13, it realizes the simultaneous flipping and moving of the rotating plate member 2. This design optimizes the transmission mode in the device, makes the structure more compact and can also less avoid the influence of the oil fluid environment on the transmission mechanism.

[0067] Furthermore, it further includes: a bracket 15, and the bracket 15 is provided at the bottom of the machine shell 1.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A high energy efficiency oil-immersed power transformer, characterized in that: include: A casing (1), the casing (1) comprising a receiving chamber (101) and an oil outlet passage (102), the receiving chamber (101) being in communication with the oil outlet passage (102), the direction of the oil outlet passage (102) being defined as a longitudinal direction, and a direction perpendicular to the longitudinal direction being defined as a transverse direction. A rotating plate (2), the rotating plate (2) being located in the accommodating cavity (101), and being a plurality of the rotating plate (2), being rotatably and slidably arranged on the housing (1), the sliding direction being in the longitudinal direction, and the rotating axis being in the transverse direction, a first brush member (3), the first brush member (3) being arranged in the accommodating cavity (101) in a manner of lifting and lowering and longitudinally sliding, the first brush member (3) comprising a first brush portion (301), the first brush portions (301) being arranged in pairs and respectively located at two ends of the first brush member (3), The first brush member (3) is configured such that, after the first brush member (3) rises and slides in a direction away from the oil outlet passage (102), the first brush portion (301) located at the upper end of the first brush member (3) slides and abuts against the rotating plate member (2) to clean the rotating plate member (2); and after the first brush member (3) descends and slides in a direction close to the oil outlet passage (102), the first brush portion (301) located at the lower end of the first brush member (3) slides and abuts against the bottom wall of the accommodating chamber (101) to clean the bottom wall of the accommodating chamber (101). A plurality of spacer plates (4) are arranged in a longitudinally spaced relationship in the accommodating chamber (101); a rotation space (401) is formed between two adjacent spacer plates (4); the rotation plate (2) is located in the rotation space (401); the spacer plates (4) and the rotation plate (2) together divide the accommodating chamber (101) into an upper accommodating chamber (103) and a lower accommodating chamber (104); the oil outlet channel (102) and the first brush member (3) are both located in the lower accommodating chamber (104).

2. The high energy efficiency oil-immersed power transformer according to claim 1, characterized in that: The upper portion of the spacer plate (4) has a first inclined portion (402), and the lower end of the first inclined portion (402) faces one side of the plate surface of the rotating plate (2).

3. The high energy efficiency oil-immersed power transformer according to claim 1, characterized in that: The housing (1) further comprises a partition cavity (105), wherein the partition cavity (105) is located around the lower accommodating cavity (104), and further comprises: an impeller (5), the impeller (5) being rotatably disposed in the oil outlet passage (102), the impeller (5) having a wheel shaft (501), a bidirectional screw rod (6), the bidirectional screw rod (6) being rotatably disposed in the partition chamber (105) and having a length direction along the longitudinal direction, the wheel shaft (501) being transmission-connected to the bidirectional screw rod (6), a first moving member (7), the first moving member (7) being threadedly connected to the bidirectional screw rod (6) and meshing with the bidirectional screw rod (6), A second moving member (8), wherein the second moving member (8) is slidably arranged on the first moving member (7), and the first brush member (3) is arranged on the second moving member (8).

4. The high energy efficiency oil-immersed power transformer according to claim 3, characterized in that: The side wall of the lower accommodating chamber (104) has an annular guide groove (106), the second moving member (8) has a sliding portion (801), the sliding portion (801) is slidably arranged in the annular guide groove (106), one side of the annular guide groove (106) has a vertical groove (107), and further comprises: A clamping member (9), the clamping member (9) being arranged on an inner wall of one side of the annular guide groove (106) in a lifting and sliding manner, the clamping member (9) having a second inclined portion (901), the sliding portion (801) slidingly abutting against the second inclined portion (901) driving the clamping member (9) to slide downward, An elastic member (16), one end of the elastic member (16) being arranged on the bottom wall of the vertical groove (107), and the other end of the elastic member (16) being arranged on the clamping member (9), so as to provide a force for the clamping member (9) to slide upward.

5. The high energy efficiency oil-immersed power transformer according to claim 1, characterized in that: The first brush member (3) comprises a plate portion (303), wherein the plate portion (303) comprises a through hole (302), and further comprises: A rotating plate (10), the rotating plate (10) being swingably disposed on the plate portion (303) and being located on one side of the through hole (302), the swing axis being parallel to the rotation axis of the first brush member (3), and opening or blocking the through hole (302) after swinging.

6. The high energy efficiency oil-immersed power transformer according to claim 1, characterized in that: Also includes: A scraping frame (11), wherein the scraping frame (11) is two in number and is arranged in pair on both sides of the first brush member (3); the scraping frames (11) have scraping portions (1101) on both sides in the horizontal direction; the scraping portions (1101) slide on the side walls of the lower accommodating chamber (104); the bottom of the scraping frame (11) has a second brush portion (1102); after the first brush member (3) slides downward, the second brush portion (1102) is driven to abut against the bottom wall of the lower accommodating chamber (104).

7. The high energy efficiency oil-immersed power transformer according to claim 6, characterized in that: A spacing plate (4) and a rotating plate (2) on a side of the spacing plate (4) away from the oil outlet channel (102) together form a turning assembly (403), wherein the rotating axis of the rotating plate (2) is eccentrically arranged relative to the rotating plate (2), and further comprising: A sliding frame (12), wherein the sliding frame (12) is longitudinally slidably arranged on the rotating plate (2) and the spacing plate (4) of a group of the flipping components (403), the sliding frame (12) has a strip guide groove (1201), the sliding frame (12) has a first rack portion (1202), the first rack portion (1202) is located above the strip guide groove (1201), the sliding frame (12) has a pushing portion (1203), the pushing portion (1203) is located in the strip guide groove (1201), a first gear (13), wherein the first gear (13) is arranged on a rotating shaft of the rotating plate (2), A second gear (14), the second gear (14) is rotatably disposed on the spacing plate (4), the second gear (14) is meshed with the first rack portion (1202), the rotation axis of the rotating plate (2) and the rotation axis of the second gear (14) are both slidably disposed in the strip-shaped guide groove (1201), after the second gear (14) rotates, it drives the sliding frame (12) to slide through the first rack portion (1202), and after sliding, the pushing portion (1203) slides until it abuts against the rotation axis of the rotating plate (2), thereby pushing the rotating plate (2) to move.

8. The high energy efficiency oil-immersed power transformer according to claim 7, characterized in that: The upper end of the scraping frame (11) has a second rack portion (1103), and the second rack portion (1103) is meshed with the second gear (14). After the second rack portion (1103) slides, it drives the second gear (14) to rotate.

9. The high energy efficiency oil-immersed power transformer according to claim 1, characterized in that: Also includes: A bracket (15), wherein the bracket (15) is arranged at the bottom of the housing (1).

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