High sound insulation oil-immersed transformer and its rapid manufacturing method

Abstract

The application discloses a high sound insulation oil-immersed transformer and a quick manufacturing method thereof, and relates to the technical field of transformers, which comprises a transformer box body, a high-voltage sleeve, an oil tank base, a radiator and a fixed sound insulation and heat dissipation mechanism. The high-voltage sleeve is fixedly connected with the transformer box body and is located on the upper surface of the transformer box body. The oil tank base is fixedly connected with the transformer box body and is located on the lower surface of the transformer box body. The radiator is fixedly connected with the transformer box body and is located on the outer side surface of the transformer box body. The fixed sound insulation and heat dissipation mechanism is fixedly installed with the oil tank base and is located on the upper surface of the oil tank base. The sound insulation box body is provided with medium-density fiberboards, connecting plates and sound-absorbing felt, the transformer structure is surrounded by the structure, sound waves pass through the sound-absorbing holes and are continuously impacted and gradually consume energy, thereby playing a sound-absorbing role, reducing the burden on people's body and mind and bringing a better use prospect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer, in particular to a high sound insulation oil-immersed transformer and a rapid manufacturing method thereof. BACKGROUND

[0002] The oil-immersed transformer is a new type of high-performance transformer with more reasonable structure and better performance. The three core columns of the three-dimensional winding core are arranged in a regular triangle shape, there is no air gap in the magnetic circuit, the winding is more compact, the lengths of the three magnetic circuits are consistent and all are the shortest, and the cross-sectional area of the core column is closer to a circle, so that the performance is further improved, the loss is reduced, the noise is reduced, the three items are balanced, and the third harmonic component is reduced. The product is more suitable for urban and rural, industrial and mining enterprise power grid transformation, and more suitable for combined transformer and pre-installed transformer for transformer substation. However, the noise generated by the general transformer during use is very large, which brings noise hazards to nearby users, causes damage to the body and mind, and brings inconvenience to people. In view of this, we propose a high sound insulation oil-immersed transformer and a rapid manufacturing method thereof. SUMMARY

[0003] (I) Technical problems solved

[0004] In view of the deficiencies of the prior art, the present application provides a high sound insulation oil-immersed transformer and a rapid manufacturing method thereof, which solves the problem of excessive noise of the transformer during use.

[0005] (II) Technical scheme

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is: a high sound insulation oil-immersed transformer, comprising a transformer box body;

[0007] A high-voltage bushing is fixedly connected with the transformer box body, and the high-voltage bushing is located on the upper surface of the transformer box body.

[0008] An oil tank base is fixedly connected with the transformer box body, and the oil tank base is located on the lower surface of the transformer box body.

[0009] A radiator is fixedly connected with the transformer box body, and the radiator is located on the outer side of the transformer box body.

[0010] A fixed sound insulation and heat dissipation mechanism is fixedly installed with the oil tank base, and the fixed sound insulation and heat dissipation mechanism is located on the upper surface of the oil tank base.

[0011] Preferably, the fixed sound insulation and heat dissipation mechanism comprises a sound insulation box body, the inner side of the sound insulation box body is provided with a sound insulation structure, the lower surface of the sound insulation box body is provided with a fixing structure, and the upper part of the sound insulation box body is provided with a breathable hole slot.

[0012] Preferably, the sound insulation structure comprises a medium fiber plate, the medium fiber plate is fixedly connected with the inner side of the sound insulation box body, the side away from the sound insulation box body of the medium fiber plate is fixedly connected with a connecting plate, the side away from the medium fiber plate of the connecting plate is fixedly connected with sound absorption felt, and a plurality of sound absorption holes are formed in the connecting plate.

[0013] Preferably, the lower surface of the sound insulation box body is provided with a fixing groove, the upper surface of the oil tank base is fixedly connected with an insertion block, and the fixing groove and the insertion block are matched with each other.

[0014] Preferably, a fixing threaded hole is formed in the insertion block, a fixing screw is arranged on the outer side of the sound insulation box body, the fixing screw and the fixing threaded hole are matched with each other, a threaded groove matched with the fixing screw is formed in the sound insulation box body, and the sound insulation box body is fixedly installed with the oil tank base through the fixing screw.

[0015] Preferably, the upper surface of the sound insulation box body is fixedly connected with a plurality of connecting columns, the upper surface of the connecting column is fixedly connected with a dustproof plate, the dustproof plate is fixedly connected with a heat dissipation ventilating fan, and the heat dissipation ventilating fan is located directly above the air hole groove.

[0016] Preferably, the heat dissipation ventilating fan comprises a fan shell, the fan shell is fixedly connected with the inner wall of the dustproof plate, a servo motor is fixedly connected in the fan shell, an electric rotating column is rotatably connected in the servo motor, rotating rods are fixedly connected to the outer surfaces of the two ends of the electric rotating column, rotating blades are fixedly connected to the outer side of the rotating rod, a slot hole is formed in the outer side of the servo motor for the rotation of the rotating rod, the number of the rotating blades is two groups, and a dust sensor is fixedly connected to the outer side of the servo motor.

[0017] Preferably, the dust sensor is electrically connected with the servo motor, an air channel is formed in the dust sensor, a laser source is arranged in the dust sensor, a light scattering measurement cavity is arranged in the air channel, a filter amplification circuit and a microprocessor electrically connected with each other are arranged in the dust sensor, the dust sensor is electrically connected with the electric rotating column, and the dust sensor is used to detect the surrounding dust.

[0018] Preferably, the heat sink comprises a heat dissipation fin, heat-conducting silica gel is coated on the outer side of the heat dissipation fin, the heat-conducting silica gel is in contact with the voltage transformation box body, the heat dissipation fin is fixedly connected with the voltage transformation box body, a conveying pipeline is arranged in the heat dissipation fin, a fixing groove hole for the conveying pipeline is formed in the heat dissipation fin, part of the conveying pipeline is located in the voltage transformation box body, a heat absorption device and a liquid conveying pump are respectively arranged on the conveying pipeline, the heat absorption device and the liquid conveying pump are fixedly connected in the voltage transformation box body, cooling liquid flows in the conveying pipeline, and the heat absorption device and the liquid conveying pump are in communication with each other.

[0019] The application discloses a quick manufacturing method of a high-sound-isolation oil-immersed transformer.

[0020] S1: fixing the sound insulation structure, fixing the medium fiber plate, the connecting plate and the sound-absorbing felt on the inner side of the sound insulation box body by using fixing glue respectively;

[0021] S2: welding the dustproof plate, welding a plurality of connecting columns on the sound insulation box body by using a welding mode, and welding the dustproof plate on the upper surfaces of the connecting columns;

[0022] S3: fixing the heat dissipation ventilating fan, cutting a hole groove with the same size as the heat dissipation ventilating fan on the dustproof plate, and fixing the heat dissipation ventilating fan in the hole groove cut on the dustproof plate;

[0023] S4: installing the fixed sound insulation and heat dissipation mechanism, aligning the fixing groove under the fixed sound insulation and heat dissipation mechanism with the plug block, placing the fixed sound insulation and heat dissipation mechanism, covering the transformer box body as a whole by the fixed sound insulation and heat dissipation mechanism, and fixing the fixed sound insulation and heat dissipation mechanism on the oil tank base by penetrating the fixed screw through the fixed screw thread hole and the screw groove, so that the installation is completed;

[0024] S5: moving and using, moving the transformer to a working site and connecting for use.

[0025] (Three) beneficial effects

[0026] The application has the beneficial effects that:

[0027] 1. The high-sound-isolation oil-immersed transformer and the quick manufacturing method thereof are characterized in that the medium fiber plate, the connecting plate and the sound-absorbing felt are arranged in the sound insulation box body, the transformer structure is surrounded by the structure, and a plurality of sound-absorbing holes are formed in the connecting plate, the sound-absorbing principle is that sound-absorbing materials are mainly divided into micro-porous type and fiber type, and there is no essential difference between the two types, the sound-absorbing principle is to leave a channel for sound to enter, the channel is formed by a large number of small holes connected together or a large number of fibers mixed together, but once the sound enters, the sound cannot come out, because the channel is too disorderly and too long, the sound drills in the channel and collides left and right, and energy is gradually consumed in the process, thereby playing a sound-absorbing role, and the sound wave passes through the sound-absorbing holes and is continuously collided and consumed.

[0028] 2. The high-sound-isolation oil-immersed transformer and the quick manufacturing method thereof are characterized in that the plug block is arranged on the oil tank base, and the matching fixing groove is formed on the sound insulation box body, so that the sound insulation box body is conveniently placed on the oil tank base, and the user fixes the sound insulation box body by using the fixed screw, thereby achieving quick and convenient installation.

[0029] 3、The high sound insulation oil immersed transformer and its quick manufacturing method, the dustproof plate is fixed on the top of the sound insulation box body, which can prevent dust from falling to a certain extent, and the heat dissipation fan is fixed on the dustproof plate, which can quickly ventilate and cool the transformer in the sound insulation box body, and the dust sensor is arranged in the heat dissipation fan, which can detect the dust around in real time, when the dust around is more, the microprocessor sends digital signals to the electric rotating column, so that the electric rotating column rotates, the rotating fan blade adjusts the angle, so as to adjust the air pressure of the heat dissipation fan, prevent too much dust from being sucked into the inside, cause the dust accumulation condition.

[0030] 4、The high sound insulation oil immersed transformer and its quick manufacturing method, the dustproof plate is fixed on the top of the sound insulation box body, which can prevent dust from falling to a certain extent, and the heat dissipation fan is fixed on the dustproof plate, which can quickly ventilate and cool the transformer in the sound insulation box body, and the dust sensor is arranged in the heat dissipation fan, which can detect the dust around in real time, when the dust around is more, the microprocessor sends digital signals to the electric rotating column, so that the electric rotating column rotates, the rotating fan blade adjusts the angle, so as to adjust the air pressure of the heat dissipation fan, prevent too much dust from being sucked into the inside, cause the dust accumulation condition. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the application;

[0032] Figure 2 It is a fixed sound insulation and heat dissipation mechanism section view of the application;

[0033] Figure 3 It is a fixed sound insulation and heat dissipation mechanism section view of the application; Figure 2

[0034] Figure 4 It is a fixed sound insulation and heat dissipation mechanism section view of the application; Figure 2

[0035] Figure 5 It is a fixed sound insulation and heat dissipation mechanism section view of the application;

[0036] Figure 6 It is a fixed sound insulation and heat dissipation mechanism section view of the application;

[0037] Figure 7 It is a fixed sound insulation and heat dissipation mechanism section view of the application;

[0038] Figure 8 It is a fixed sound insulation and heat dissipation mechanism section view of the application;

[0039] Figure 9 It is a fixed sound insulation and heat dissipation mechanism section view of the application;

[0040] ​​In the diagram: 1. High-voltage bushing; 2. Transformer enclosure; 3. Oil tank base; 4. Radiator; 5. Fixed sound insulation and heat dissipation mechanism; 6. Dustproof plate; 7. Soundproof enclosure; 8. Sound insulation structure; 9. Fixing structure; 10. Heat dissipation and ventilation fan; 11. Connecting column; 801. MDF; 802. Sound absorption hole; 803. Connecting plate; 804. Sound absorption felt; 901. Fixing screw; 902. Insert block; 903. Fixing groove; 904. Fixing threaded hole ; 12. Fan housing; 13. Rotating fan blades; 14. Dust sensor; 15. Rotating rod; 16. Servo motor; 17. Electric rotating column; 1401. Laser source; 1402. Light scattering measurement cavity; 1403. Air channel; 1404. Filtering and amplification circuit; 1405. Microprocessor; 401. Heat sink; 402. Delivery pipe; 403. Thermally conductive silicone; 404. Heat absorption device; 405. Liquid delivery pump. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] like Figures 1-8 As shown, the present invention provides a technical solution: a high-sound-insulating oil-immersed transformer, including a transformer housing 2;

[0043] High-voltage bushing 1 is fixedly connected to transformer housing 2 and is located on the upper surface of transformer housing 2.

[0044] The oil tank base 3 is fixedly connected to the transformer housing 2, and the oil tank base 3 is located on the lower surface of the transformer housing 2.

[0045] Radiator 4 is fixedly connected to transformer box 2 and is located on the outer side of transformer box 2.

[0046] The fixed sound insulation and heat dissipation mechanism 5 is fixedly installed on the oil tank base 3, and the fixed sound insulation and heat dissipation mechanism 5 is located on the upper surface of the oil tank base 3.

[0047] Furthermore, the fixed sound insulation and heat dissipation mechanism 5 includes a sound insulation box 7, a sound insulation structure 8 is provided on the inner side of the sound insulation box 7, a fixing structure 9 is provided on the lower surface of the sound insulation box 7, and a ventilated slot is provided on the upper part of the sound insulation box 7.

[0048] Further, the sound insulation structure 8 comprises a medium fiber plate 801, the medium fiber plate 801 is fixedly connected with the inner side of the sound insulation box body 7, a connecting plate 803 is fixedly connected with the side, away from the sound insulation box body 7, of the medium fiber plate 801, a sound absorption felt 804 is fixedly connected with the side, away from the medium fiber plate 801, of the connecting plate 803, a plurality of sound absorption holes 802 are formed in the connecting plate 803, and the sound absorption felt 804 is a high-density coiled material made of rubber, high polymer material and the like as main raw materials and having certain flexibility, which is mainly used in combination with the plaster board and is used for wall sound insulation, ceiling sound insulation, pipeline sound insulation and mechanical equipment sound insulation and damping vibration reduction.

[0049] By arranging the medium fiber plate 801, the connecting plate 803 and the sound absorption felt 804 in the sound insulation box body 7, the transformer structure is surrounded, and a plurality of sound absorption holes 802 are formed in the connecting plate 803, the sound absorption principle is that sound absorption materials are mainly divided into micro-porous and fiber types, which have no essential difference, the sound absorption principle is to leave a channel for sound to enter, the channel is composed of countless small holes connected together or countless small gaps formed by countless fibers mixed together, but once the sound enters, it cannot come out, because the channel is too chaotic and too long, the sound drills in and collides left and right in the channel, and gradually consumes energy in the process, thereby playing a sound absorption role, and the sound wave passes through the sound absorption holes 802 and is continuously collided and consumed.

[0050] Further, a fixing groove 903 is formed in the lower surface of the sound insulation box body 7, an insertion block 902 is fixedly connected to the upper surface of the oil tank base 3, the fixing groove 903 and the insertion block 902 are matched with each other, a fixing screw hole 904 is formed in the insertion block 902, a fixing screw 901 is arranged on the outer side of the sound insulation box body 7, the fixing screw 901 and the fixing screw hole 904 are matched with each other, a threaded groove matched with the fixing screw 901 is formed in the sound insulation box body 7, and the sound insulation box body 7 is fixedly installed on the oil tank base 3 through the fixing screw 901.

[0051] By arranging the insertion block 902 on the oil tank base 3 and forming the matching fixing groove 903 on the sound insulation box body 7, the sound insulation box body 7 is conveniently inserted on the oil tank base 3, and the user can use the fixing screw 901 to fix.

[0052] Further, a plurality of connecting columns 11 are fixedly connected to the upper surface of the sound insulation box body 7, a dustproof plate 6 is fixedly connected to the upper surface of the connecting column 11, a heat dissipation and ventilation fan 10 is fixedly connected to the dustproof plate 6, and the heat dissipation and ventilation fan 10 is located directly above the air hole groove.

[0053] Further, the heat dissipation fan 10 comprises a fan shell 12 fixedly connected with the inner wall of the dustproof plate 6, a servo motor 16 fixedly connected inside the fan shell 12, an electric rotating column 17 rotatably connected inside the servo motor 16, rotating rods 15 fixedly connected to the outer surfaces of the two ends of the electric rotating column 17, rotating blades 13 fixedly connected to the outer sides of the rotating rods 15, and a dust sensor 14 fixedly connected to the outer side of the servo motor 16.

[0054] The servo motor 16 can control the speed and has very accurate position accuracy, can convert the voltage signal into torque and rotating speed to drive the control object, the rotating speed of the servo motor 16 rotor is controlled by the input signal and can quickly react, is used as an executing element in an automatic control system, has the characteristics of small electromechanical time constant and high linearity, can convert the received electric signal into angular displacement or angular speed output on the shaft of the electric motor, is divided into two categories of direct current and alternating current servo motors, and the main characteristic is that there is no self-rotation phenomenon when the signal voltage is zero, and the rotating speed uniformly decreases with the increase of the torque.

[0055] Further, the dust sensor 14 is electrically connected with the servo motor 16, the dust sensor 14 is internally provided with an air channel 1403, the dust sensor 14 is internally provided with a laser source 1401, the air channel 1403 is internally provided with a light scattering measurement cavity 1402, the dust sensor 14 is internally provided with a filter amplification circuit 1404 and a microprocessor 1405 electrically connected with each other, the dust sensor 14 is electrically connected with the electric rotating column 17, and the dust sensor 14 is used to detect the surrounding dust.

[0056] The working principle of the dust sensor 14 is that the particles and molecules will produce light scattering phenomenon under the irradiation of light, and at the same time, absorb part of the energy of the irradiation light, when a parallel monochromatic light is incident on the measured particle field, will be affected by the scattering and absorption around the particles, the light intensity will be attenuated, in this way, the relative attenuation rate of the incident light through the measured concentration field can be obtained, and the size of the relative attenuation rate can basically linearly respond to the relative concentration of the dust in the measured field, the size of the light intensity is proportional to the strength of the electric signal converted by the photoelectric conversion, and the relative attenuation rate can be obtained by measuring the electric signal.

[0057] By fixing the dustproof plate 6 above the sound insulation box 7, the falling of dust can be prevented to a certain extent, and the heat dissipation fan 10 is fixed on the dustproof plate 6, which can quickly ventilate and dissipate heat for the transformer in the sound insulation box 7, and the dust sensor 14 is arranged in the heat dissipation fan 10, which can detect the dust around in real time. When the surrounding dust is more, the digital signal is sent to the electric rotating column 17 through the microprocessor 1405, so that the electric rotating column 17 rotates, and the angle of the rotating fan blade 13 is adjusted, so that the wind pressure of the heat dissipation fan 10 is adjusted, and too much dust is prevented from being sucked into the inside, causing the condition of dust accumulation.

[0058] Further, the radiator 4 includes the heat dissipation fin 401, the outer side of the heat dissipation fin 401 is coated with the heat-conducting silica gel 403, the heat-conducting silica gel 403 is in contact with the transformer box 2, the heat dissipation fin 401 is fixedly connected with the transformer box 2, the inside of the heat dissipation fin 401 is provided with the conveying pipeline 402, the inside of the heat dissipation fin 401 is provided with a fixing groove hole for the conveying pipeline 402, part of the conveying pipeline 402 is located in the inside of the transformer box 2, the conveying pipeline 402 is respectively provided with the heat absorption device 404 and the liquid conveying pump 405, the heat absorption device 404 and the liquid conveying pump 405 are fixedly connected in the inside of the transformer box 2, the conveying pipeline 402 flows with the cooling liquid, and the heat absorption device 404 and the liquid conveying pump 405 are in communication with each other.

[0059] A quick manufacturing method of a high sound insulation oil-immersed transformer, the manufacturing steps include:

[0060] S1: fixing the sound insulation structure 8, using fixing glue to fix the upper middle fiber plate 801, the connecting plate 803 and the sound-absorbing felt 804 on the inner side of the sound insulation box 7;

[0061] S2: welding the dustproof plate 6, using welding method to weld a plurality of connecting columns 11 on the sound insulation box 7, and welding the dustproof plate 6 on the upper surfaces of the connecting columns 11;

[0062] S3: fixing the heat dissipation fan 10, cutting a hole slot equal in size to the heat dissipation fan 10 on the dustproof plate 6, and fixing the heat dissipation fan 10 in the hole slot cut on the dustproof plate 6;

[0063] S4: installing and fixing the sound insulation and heat dissipation mechanism 5, aligning the fixing groove 903 under the sound insulation and heat dissipation mechanism 5 with the insertion block 902, placing it well, so that the sound insulation and heat dissipation mechanism 5 covers the transformer box 2 as a whole, using the fixing screw 901 to penetrate through the fixed thread hole 904 and the thread groove, and fixing the sound insulation and heat dissipation mechanism 5 on the oil tank base 3, completing the installation;

[0064] S5: moving use, moving the transformer to the working place and connecting for use.

[0065] The above detailed description of the specific embodiments of the present application is provided for the purpose of further explaining the objects, technical solutions and advantages of the present application, and it should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high soundproofing oil immersed transformer, characterized in that: Including transformer box (2); High voltage bushing (1), the high voltage bushing (1) is fixedly connected with transformer box (2), the high voltage bushing (1) is located on the upper surface of transformer box (2); Oil tank base (3), the oil tank base (3) is fixedly connected with transformer box (2), the oil tank base (3) is located on the lower surface of transformer box (2); Radiator (4), the radiator (4) is fixedly connected with transformer box (2), the radiator (4) is located on the outer side of transformer box (2); Fixed sound insulation and heat dissipation mechanism (5), the fixed sound insulation and heat dissipation mechanism (5) is fixedly installed with oil tank base (3), the fixed sound insulation and heat dissipation mechanism (5) is located on the upper surface of oil tank base (3), the radiator (4) includes fin (401), the outer side of the fin (401) is coated with heat-conducting silicone (403), the heat-conducting silicone (403) is in contact with transformer box (2), the fin (401) is fixedly connected with transformer box (2), the inside of the fin (401) is provided with conveying pipeline (402), the inside of the fin (401) is provided with fixed slot hole for conveying pipeline (402), part of the conveying pipeline (402) is located in the inside of transformer box (2), the conveying pipeline (402) is respectively provided with heat absorption device (404) and liquid delivery pump (405), the heat absorption device (404) and the liquid delivery pump (405) are fixedly connected in the inside of transformer box (2), the conveying pipeline (402) flows with cooling liquid, the heat absorption device (404) and the liquid delivery pump (405) are communicated with each other, the fixed sound insulation and heat dissipation mechanism (5) includes sound insulation box (7), the inner side of the sound insulation box (7) is provided with sound insulation structure (8), the lower surface of the sound insulation box (7) is provided with fixed structure (9), the upper part of the sound insulation box (7) is provided with air-permeable hole slot, the sound insulation structure (8) includes medium fiber board (801), the medium fiber board (801) is fixedly connected with the inner side of the sound insulation box (7), the side, away from the sound insulation box (7), of the medium fiber board (801) is fixedly connected with connecting plate (803), the side, away from the medium fiber board (801), of the connecting plate (803) is fixedly connected with sound absorbing felt (804), a plurality of sound absorbing holes (802) are formed in the connecting plate (803).

2. A high soundproofing oil immersed transformer according to claim 1, characterized in that: The lower surface of the sound insulation box (7) is provided with fixed slot (903), the upper surface of the oil tank base (3) is fixedly connected with plug (902), the fixed slot (903) and the plug (902) are matched with each other.

3. A high soundproofing oil immersed transformer according to claim 2, characterized in that: The plug (902) is provided with fixed screw hole (904), the outer side of the sound insulation box (7) is provided with fixed screw (901), the fixed screw (901) and the fixed screw hole (904) are matched with each other, the sound insulation box (7) is provided with screw groove matched with the fixed screw (901), and the sound insulation box (7) is fixedly installed with the oil tank base (3) through the fixed screw (901).

4. A high soundproofing oil immersed transformer according to claim 3, characterized in that: The upper surface of the sound insulation box (7) is fixedly connected with a plurality of connecting columns (11), the upper surface of the connecting column (11) is fixedly connected with a dustproof plate (6), the dustproof plate (6) is fixedly connected with a heat dissipation ventilation fan (10), and the heat dissipation ventilation fan (10) is located directly above the air hole groove.

5. A high soundproofing oil immersed transformer according to claim 4, characterized in that: The heat dissipation ventilation fan (10) comprises a fan shell (12), the fan shell (12) is fixedly connected with the inner wall of the dustproof plate (6), a servo motor (16) is fixedly connected in the fan shell (12), an electric rotating column (17) is rotatably connected in the servo motor (16), rotating rods (15) are fixedly connected to the outer surfaces of the two ends of the electric rotating column (17), rotating blades (13) are fixedly connected to the outer sides of the rotating rods (15), a groove hole is formed in the outer side of the servo motor (16) for the rotation of the rotating rod (15), the number of the rotating blades (13) is two groups, and a dust sensor (14) is fixedly connected to the outer side of the servo motor (16).

6. A high soundproofing oil immersed transformer according to claim 5, characterized in that: The dust sensor (14) is electrically connected with the servo motor (16), an air channel (1403) is formed in the dust sensor (14), a laser source (1401) is arranged in the dust sensor (14), a light scattering measurement cavity (1402) is arranged in the air channel (1403), a filter amplification circuit (1404) and a microprocessor (1405) that are electrically connected with each other are arranged in the dust sensor (14), the dust sensor (14) is electrically connected with the electric rotating column (17), and the dust sensor (14) is used for detecting dust around.

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