Energy-saving low-noise silicon steel iron core oil-immersed transformer

Abstract

The invention discloses an energy-saving low-noise silicon steel iron core oil-immersed transformer, which comprises a transformer main body, sliding blocks, an oil-immersed transformer core, an oil-immersed transformer core, an oil-immersed transformer core, an oil-immersed transformer core and an oil-immersed transformer core, sliding grooves are formed in the upper end and the lower end of the first box body, the transformer body is arranged in the first box body, the sliding blocks are in closed sliding fit with the sliding grooves, and the first box body is filled with heat dissipation oil liquid; the second box body is arranged on the outer side of the first box body in a sleeving mode so as to wrap the first box body, supporting legs are arranged at the bottom of the first box body and fixedly connected with the second box body, one end of each spring is connected with the corresponding sliding block, and the other end of each spring is connected with the second box body so as to fix the transformer body in the first box body; and the cooling structure comprises a heat dissipation piece and a vibration oil supply structure, the heat dissipation piece is arranged on the outer side of the second box body, one end of an amplification structure of the vibration oil supply structure is connected with the sliding block, and the other end of the amplification structure of the vibration oil supply structure is connected with an oil pumping structure of the vibration oil supply structure. According to the invention, not only can the effect of reducing noise be achieved, but also the effect of saving energy can be achieved.

Description

Technical Field

[0001] The present invention belongs to the field of transformers, and more specifically, relates to an energy-saving and low-noise silicon steel core oil-immersed transformer. Background Art

[0002] The vibration of the transformer during operation will generate noise, causing trouble to the daily life of the surrounding residents. Patent announcement number CN118280707B discloses a low-noise power transformer, including a shell and a sound insulation layer arranged on the inner side wall of the shell, the sound insulation layer has an annular cavity, a bracket and a liquid storage tank for storing a foaming liquid are arranged on the inner side of the sound insulation layer, and a magnetostrictive unit and a foaming device movably hinged to the magnetostrictive unit are arranged on both sides of the bracket; the foaming device is provided with a liquid storage cavity unidirectionally connected to the liquid storage tank, a mixing cavity unidirectionally connected to the liquid storage cavity, and an air storage cavity unidirectionally connected to the mixing cavity; the mixing cavity is connected to the annular cavity; the magnetostrictive unit drives the foaming device to work, so that the foaming liquid in the liquid storage cavity enters the mixing cavity, the compressed air in the air storage cavity enters the mixing cavity and mixes with the foaming liquid to form foam, and the foam in the mixing cavity enters the annular cavity; the present invention fills the foam generated by the mixture of compressed air and foaming liquid into the annular cavity of the sound insulation layer to form a bubble wall, absorbs the noise generated by the transformer, isolates the propagation path of the noise, and achieves a low-noise effect. On the one hand, this patent utilizes the magnetic field generated by the transformer when it is working to drive the magnetostrictive unit to work, which requires consumption of electrical energy; on the other hand, when the foaming liquid is foamed under the action of gas, the foaming liquid will be consumed quickly, and the storage liquid needs to be regularly replenished in the storage tank, which makes maintenance more troublesome. Summary of the invention

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0004] An object of the present invention is to provide an energy-saving and low-noise silicon steel core oil-immersed transformer, which can utilize the vibration of the core to drive the circulation of heat dissipation oil, which can reduce noise on the one hand and enhance the heat dissipation effect on the other hand.

[0005] In order to achieve these purposes and other advantages of the present invention, an energy-saving and low-noise silicon steel core oil-immersed transformer is provided, which comprises: The transformer body has sliders at its upper and lower ends; A first box body, wherein the upper and lower ends of the first box body are both provided with slide grooves, the transformer body is arranged inside the first box body, the slider is in airtight sliding cooperation with the slide grooves, and the first box body is filled with heat dissipation oil; The second box is sleeved on the outside of the first box to wrap the first box, the bottom of the first box is provided with a leg, the leg is fixedly connected to the second box, one end of the spring is connected to the slider, and the other end is connected to the second box to fix the transformer body in the first box; The cooling structure includes a heat sink and a vibration oil supply structure. The heat sink is arranged on the outside of the second box. One end of the amplifying structure of the vibration oil supply structure is connected to the slider, and the other end is connected to the pumping structure of the vibration oil supply structure to utilize the vibration of the transformer body to pump the heat dissipation oil in the first box to the heat sink for cooling. After cooling, the heat dissipation oil flows back into the first box.

[0006] Preferably, the amplification structure comprises: A first connecting rod, which is arranged on the lower slider; A first hinged rod, which is arranged at the bottom of the second box; A first amplifying rod, one end of which is hinged to the first connecting rod, the first amplifying rod is hinged to the first hinged rod, and the hinged position of the first amplifying rod and the first hinged rod is close to the first connecting rod to play a lever amplification role; One end of the second connecting rod is hinged to the other end of the first amplifying rod, and the other end of the second connecting rod is connected to the oil pumping structure to drive the oil pumping structure to work.

[0007] Preferably, the oil pump structure comprises: A piston cylinder, which is arranged at the lower middle part of the outer side of the first box body; A piston ring, which is airtightly disposed in the piston cylinder, and the piston ring is connected to the second connecting rod; An oil supply cylinder, the bottom of which is connected to the top of the piston cylinder, the cross section of the oil supply cylinder is smaller than the cross section of the piston cylinder, an oil inlet and an oil outlet are arranged on the top of the oil supply cylinder, the oil inlet is connected to the inside of the first box body, a first one-way valve is arranged at the oil inlet, the oil outlet is connected to the heat sink, and a second one-way valve is arranged at the oil outlet; The sliding column is arranged in the oil supply cylinder. The sliding column, the piston ring, the oil supply cylinder and the piston cylinder jointly define a liquid storage space, and the liquid storage space is filled with hydraulic oil; When the piston ring moves downward, the sliding column moves downward, and the heat dissipation oil in the first box body enters the oil supply cylinder. When the piston ring moves upward, the sliding column moves upward to press the heat dissipation oil from the oil supply cylinder to the heat dissipation component.

[0008] Preferably, the cross section of the piston cylinder is rectangular, and the piston cylinder is arranged at the lower end of the side gap space formed by the side of the first box body and the side of the second box body to block the lower end of the side gap space.

[0009] Preferably, the upper end of the first box body and the upper end of the second box body form an upper gap space, the lower end of the first box body and the lower end of the second box body form a lower gap space, the side gap space is filled with buffer powder, and the upper gap space and the lower gap space are filled with 1 / 2 of the space volume of buffer powder.

[0010] Preferably, it further comprises a loose structure, wherein the loose structure comprises: A second connecting rod, which is arranged on the upper slider; A second hinged rod, which is arranged on the top of the second box; A second amplifying rod, one end of which is hinged to the third connecting rod, the second amplifying rod is hinged to the second hinged rod, and the hinged position of the second amplifying rod and the second hinged rod is close to the second hinged rod to play a lever amplification role; The third connecting rod has one end fixedly connected to the second amplifying rod, and the distance between the lower end of the third connecting rod and the top of the piston cylinder is 0.5-1 cm.

[0011] Preferably, a loosening rod is provided at the lower end of the third connecting rod, the loosening rod is vertically arranged to the third connecting rod, and the loosening rod is parallel to the length direction of the piston cylinder.

[0012] Preferably, a felt board is provided on the outer side of the first box.

[0013] Preferably, the heat sink is an S-shaped plate structure with a hollow interior, the bottom of the heat sink is connected to the oil outlet of the oil supply cylinder, and the top of the heat sink is connected to the interior of the first box.

[0014] Preferably, the heat dissipation pipe penetrates the heat dissipation element to form a heat dissipation hole in the heat dissipation element.

[0015] The present invention has at least the following beneficial effects: First, the present technical solution utilizes the vibration of the transformer body to drive the vibration oil supply structure to work, transmits the heat dissipation oil in the first box to the heat dissipation element for cooling, and the heat dissipation oil flows back into the first box, making full use of the kinetic energy generated by the vibration of the transformer body, which can not only reduce noise but also save energy. Second, the present invention utilizes buffer powder, which can absorb and block the propagation and influence of sound waves on the one hand, and convert the sound energy of sound waves into internal energy consumption on the other hand, thereby helping to reduce noise.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of a technical solution of the present invention; Figure 2 It is a schematic diagram of a top view structure of a technical solution of the present invention; Figure 3 The figure is a schematic structural diagram of a heat sink according to a technical solution of the present invention.

[0018] 1. Transformer body; 2. Slider; 3. First box body; 4. Second box body; 5. Slide; 6. Leg; 7. Spring; 8. Heat sink; 9. First connecting rod; 10. First amplifying rod; 11. First hinged rod; 12. Second connecting rod; 13. Piston cylinder; 14. Piston ring; 15. Oil supply cylinder; 16. Sliding column; 17. Upper gap space; 18. Lower gap space; 19. Side gap space; 20. Third connecting rod; 21. Second hinged rod; 22. Second amplifying rod; 23. Fourth connecting rod; 24. Heat dissipation pipe. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0020] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0021] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial sources unless otherwise specified; in the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, set, or detachably connected, set, or connected and set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in specific circumstances. The orientation or position relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0022] like Figure 1-3 As shown, the present invention provides an energy-saving and low-noise silicon steel core oil-immersed transformer, which includes: The transformer body 1 has sliders 2 at its upper and lower ends; The first box body 3 is provided with a slide groove 5 at the upper and lower ends thereof, the transformer body 1 is arranged inside the first box body 3, the slider 2 is in airtight sliding cooperation with the slide groove 5, and the first box body 3 is filled with heat dissipation oil; The second box body 4 is sleeved on the outside of the first box body 3 to wrap the first box body 3. The bottom of the first box body 3 is provided with a leg 6, and the leg 6 is fixedly connected to the second box body 4. One end of the spring 7 is connected to the slider 2, and the other end is connected to the second box body 4 to fix the transformer body 1 in the first box body 3; The cooling structure includes a heat sink 8 and a vibration oil supply structure. The heat sink 8 is arranged on the outside of the second box body 4. One end of the amplifying structure of the vibration oil supply structure is connected to the slider 2, and the other end is connected to the pumping structure of the vibration oil supply structure to utilize the vibration of the transformer body 1 to pump the heat dissipation oil in the first box body 3 to the heat sink 8 for cooling. After cooling, the heat dissipation oil flows back to the first box body 3.

[0023] In the present technical solution, the transformer body 1 includes a silicon steel core and a coil winding, and the coil winding is wound on the silicon steel core to form the transformer body 1. The cross-sections of the first box body 3 and the second box body 4 are both rectangular, and the first box body 3 is fixed inside the second box body 4. The spring 7 connected to each slider 2 can be one or more. A cooling structure is provided on each side surface around the second box body 4, that is, a heat sink 8 and a vibration oil supply structure matching each heat sink 8 are provided on each side surface around the second box body 4. The heat sink 8 can be composed of a plurality of hollow heat sink fins connected end to end, or it can be a rectangular box body, and the heat dissipation oil enters the heat sink 8 from the bottom and is discharged from the top and circulated back into the first box body. A sealing ring is provided on the slider 2 to enable the slider 2 to be slidably connected to the slide groove 5 in a closed manner. The vibrating oil supply structure may be an elastic diaphragm driven oil supply structure, and the elastic diaphragm may deform under the action of vibration to utilize the elastic diaphragm to drive the oil supply, such as a structure similar to that disclosed in patent publication number CN114141504A that utilizes an elastic diaphragm to drive airflow.

[0024] The technical solution utilizes the vibration of the transformer body 1 to drive the vibration oil supply structure to work, and transmits the heat dissipation oil inside the first box body 3 to the heat dissipation element 8 for cooling. The heat dissipation oil then flows back into the first box body 3, making full use of the kinetic energy generated by the vibration of the transformer body 1, which can not only reduce noise but also save energy.

[0025] In another technical solution, the amplification structure includes: A first connecting rod 9, which is arranged on the lower slider 2; A first hinge rod 11, which is arranged at the bottom of the second box body 4; A first amplifying rod 10, one end of which is hinged to the first connecting rod, and the first amplifying rod 10 is hinged to the first hinged rod 11, and the hinged position of the first amplifying rod 10 and the first hinged rod 11 is close to the first connecting rod 9 to play a lever amplification role; One end of the second connecting rod 12 is hinged to the other end of the first amplifying rod 10, and the other end of the second connecting rod 12 is connected to the oil pumping structure to drive the oil pumping structure to work.

[0026] In the technical solution, the vibration amplitude of the transformer body 1 is amplified by the lever effect of the first amplifying rod 10, so as to drive the oil pump structure to work, so as to fully utilize the energy of the vibration and reduce the noise generated by the vibration.

[0027] In another technical solution, the oil pump structure includes: The piston cylinder 13 is arranged at the lower middle part of the outer side of the first box body 3; A piston ring 14, which is airtightly disposed in the piston cylinder 13, and the piston ring 14 is connected to the second connecting rod 12; The oil supply cylinder 15, the bottom of which is connected to the top of the piston cylinder 13, the cross section of the oil supply cylinder 15 is smaller than the cross section of the piston cylinder 13, the top of the oil supply cylinder 15 is provided with an oil inlet and an oil outlet, the oil inlet is connected to the inside of the first box body 3, a first non-return valve is provided at the oil inlet, the oil outlet is connected to the heat sink 8, and a second non-return valve is provided at the oil outlet; The sliding column 16 is arranged in the oil supply cylinder 15. The sliding column 16, the piston ring 14, the oil supply cylinder 15 and the piston cylinder 13 together define a liquid storage space, and the liquid storage space is filled with hydraulic oil; When the piston ring 14 moves downward, the sliding column 16 moves downward, and the heat dissipation oil in the first box body 3 enters the oil supply cylinder 15. When the piston ring 14 moves upward, the sliding column 16 moves upward to press the heat dissipation oil from the oil supply cylinder 15 to the heat dissipation element 8.

[0028] In the technical solution, the oil pump structure is arranged in the side gap space formed by the side wall of the second housing 4 and the side wall of the first housing 3. A sealing ring is arranged on the sliding column 16 so that the sliding column 16 is connected to the oil supply cylinder 15 in a closed sliding manner. The swing of the first amplifying rod 10 drives the piston ring 14 to reciprocate up and down in the piston cylinder 13. Since the first housing 3 is connected to the outside atmospheric pressure, when the piston ring 14 moves downward, the sliding column 16 moves downward under the action of the air pressure, and a negative pressure is formed in the oil supply cylinder 15, and the heat dissipation oil in the first housing 3 enters the oil supply cylinder 15; when the piston ring 14 moves upward, the hydraulic oil pushes the sliding column 16 to move upward, and the heat dissipation oil in the oil supply cylinder 15 is squeezed into the heat sink 8 to dissipate heat. In the technical solution, the cross-sectional area of ​​the oil supply cylinder 15 is designed to be smaller than the cross-sectional area of ​​the piston cylinder 13. When the piston ring 14 moves downward, a strong negative pressure can be quickly formed in the oil supply cylinder 15, which accelerates the speed at which the oil enters the oil supply cylinder 15, thereby accelerating the circulation of the oil.

[0029] In another technical solution, the cross section of the piston cylinder 13 is rectangular, and the piston cylinder 13 is arranged at the lower end of the side gap space formed by the side of the first box body 3 and the side of the second box body 4 to block the lower end of the side gap space. The outer side of the piston cylinder 13 is rectangular, and the four corners of the inner side are rounded to achieve a sealed and movable connection between the piston ring 14 and the piston cylinder 13.

[0030] In another technical solution, the upper end of the first box body 3 and the upper end of the second box body 4 form an upper gap space 17, the lower end of the first box body 3 and the lower end of the second box body 4 form a lower gap space 18, the side gap space is filled with buffer powder, and the upper gap space 17 and the lower gap space 18 are filled with 1 / 2 of the space volume of buffer powder. By adding buffer powder, the friction of the particles of the buffer powder can be used to convert the sound energy of the sound wave into internal energy consumption, which helps to reduce noise. The buffer powder is usually selected from powders with a particle size below micron level, wear resistance and stable properties, such as rubber powder, carbon black powder or sepiolite powder. The present invention does not limit the type of buffer powder, and the buffer powder that can achieve the effect of the present invention is within the scope of protection of the present invention.

[0031] In another technical solution, a loose structure is also included, and the loose structure includes: A third connecting rod, which is arranged on the upper slider 2; A second hinge rod 21, which is arranged on the top of the second box body 4; A second amplifying rod 22, one end of which is hinged to the third connecting rod, and the second amplifying rod 22 is hinged to the second hinge rod 21. The hinged position of the second amplifying rod 22 and the second hinge rod 21 is close to the second hinge rod 21 to play a lever amplification role; One end of the fourth connecting rod 23 is fixedly connected to the second amplifying rod 22, and the distance between the lower end of the fourth connecting rod 23 and the top of the piston cylinder 13 is 0.5-1 cm.

[0032] In this technical solution, the back-and-forth movement of the fourth connecting rod 23 in the side gap space can play a role in loosening the buffer powder, thereby preventing the buffer powder at the bottom of the side gap from vibrating and compacting, thereby reducing the acoustic energy consumed by the vibration of the buffer powder.

[0033] In another technical solution, a loosening rod is provided at the lower end of the fourth connecting rod 23, the loosening rod is vertically arranged with the fourth connecting rod 23, and the loosening rod is parallel to the length direction of the piston cylinder 13. By providing the loosening rod, the loosening area can be increased to better loosen the powder in the side gap space.

[0034] In another technical solution, a fifth connecting rod is provided at the other end of the second amplifying rod, the fifth connecting rod is parallel to the length direction of the piston, the fourth connecting rod is a tension spring, the number of the tension springs is at least 3, the three tension springs are arranged on the fifth connecting rod at equal intervals, and the lower end of the tension spring is connected to the loosening rod. The tension spring can increase the contact area between the loosening buffer powder and the tension spring, achieve a better loosening effect, and also help the friction between the buffer powder and the tension spring, converting kinetic energy into internal energy consumption, so as to further reduce noise.

[0035] In another technical solution, a felt board is provided on the outside of the first box 3. Since the outer surface of the felt board is relatively soft and loose, the noise moves irregularly between the internal fibers, which prolongs the time for the noise to be transmitted outward, and also consumes part of the energy inside the noise, so that the energy and decibel of the noise passing through the felt board are reduced. The soft and loose surface of the felt board can also further loosen the buffer powder.

[0036] In another technical solution, the heat sink 8 is an S-shaped plate structure with a hollow interior, the bottom of the heat sink 8 is connected to the oil outlet of the oil supply cylinder 15, and the top of the heat sink 8 is connected to the interior of the first box body 3. The S-shaped structure of the heat sink 8 can increase the movement path of the heat sink oil and increase the cooling time of the heat sink oil.

[0037] In another technical solution, the heat dissipation pipe 24 penetrates the heat dissipation element 8 to form a heat dissipation hole in the heat dissipation element 8. By providing the heat dissipation hole, the heat dissipation on the heat dissipation element 8 is accelerated by airflow passing through the heat dissipation hole.

[0038] In another technical solution, a chute closing structure is also included, and the chute closing structure includes: A telescopic tube, which is sleeved on the outside of the spring, and the telescopic tube is a bellows made of an elastic plastic part; The elastic membrane is arranged at the notch of the slide slot to block the slide slot opening away from the sliding block.

[0039] In the technical solution, the telescopic tube and the elastic film are used to block the chute opening, which can prevent the buffer powder from entering the chute and preventing the buffer powder from adhering to the chute wall and affecting the sliding of the slide in the chute. Specifically, for the lower chute, the elastic film is provided with a first through hole, a second through hole and a third through hole, the first connecting rod on the left side passes through the first through hole, the telescopic tube passes through the second through hole, and the first connecting rod on the right side passes through the third through hole, and the elastic film has an elastic telescopic effect, so that the first through hole, the second through hole and the first connecting rod are tightly connected, and the second through hole is tightly connected to the outer side of the tube wall of the telescopic tube.

[0040] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. Energy-saving and low-noise silicon steel core oil-immersed transformer, characterized in that: include: The transformer body has sliders at its upper and lower ends; A first box body, wherein the upper and lower ends of the first box body are both provided with slide grooves, the transformer body is arranged inside the first box body, the slider is in airtight sliding cooperation with the slide grooves, and the first box body is filled with heat dissipation oil; The second box is sleeved on the outside of the first box to wrap the first box, the bottom of the first box is provided with a leg, the leg is fixedly connected to the second box, one end of the spring is connected to the slider, and the other end is connected to the second box to fix the transformer body in the first box; The cooling structure includes a heat sink and a vibration oil supply structure. The heat sink is arranged on the outside of the second box. One end of the amplifying structure of the vibration oil supply structure is connected to the slider, and the other end is connected to the pumping structure of the vibration oil supply structure to utilize the vibration of the transformer body to pump the heat dissipation oil in the first box to the heat sink for cooling. After cooling, the heat dissipation oil flows back into the first box.

2. The energy-saving and low-noise silicon steel core oil-immersed transformer according to claim 1 is characterized in that: The amplification structure comprises: A first connecting rod, which is arranged on the lower slider; A first hinged rod, which is arranged at the bottom of the second box; A first amplifying rod, one end of which is hinged to the first connecting rod, the first amplifying rod is hinged to the first hinged rod, and the hinged position of the first amplifying rod and the first hinged rod is close to the first connecting rod to play a lever amplification role; One end of the second connecting rod is hinged to the other end of the first amplifying rod, and the other end of the second connecting rod is connected to the oil pumping structure to drive the oil pumping structure to work.

3. The energy-saving and low-noise silicon steel core oil-immersed transformer according to claim 1 is characterized in that: The oil pump structure comprises: A piston cylinder, which is arranged at the lower middle part of the outer side of the first box body; A piston ring, which is airtightly disposed in the piston cylinder, and the piston ring is connected to the second connecting rod; An oil supply cylinder, the bottom of which is connected to the top of the piston cylinder, the cross section of the oil supply cylinder is smaller than the cross section of the piston cylinder, an oil inlet and an oil outlet are arranged on the top of the oil supply cylinder, the oil inlet is connected to the inside of the first box body, a first one-way valve is arranged at the oil inlet, the oil outlet is connected to the heat sink, and a second one-way valve is arranged at the oil outlet; The sliding column is arranged in the oil supply cylinder. The sliding column, the piston ring, the oil supply cylinder and the piston cylinder jointly define a liquid storage space, and the liquid storage space is filled with hydraulic oil; When the piston ring moves downward, the sliding column moves downward, and the heat dissipation oil in the first box body enters the oil supply cylinder. When the piston ring moves upward, the sliding column moves upward to press the heat dissipation oil from the oil supply cylinder to the heat dissipation component.

4. The energy-saving and low-noise silicon steel core oil-immersed transformer according to claim 3 is characterized in that: The cross section of the piston cylinder is rectangular, and the piston cylinder is arranged at the lower end of the side gap space formed by the side of the first box body and the side of the second box body to block the lower end of the side gap space.

5. The energy-saving and low-noise silicon steel core oil-immersed transformer according to claim 4 is characterized in that: The upper end of the first box body and the upper end of the second box body form an upper gap space, the lower end of the first box body and the lower end of the second box body form a lower gap space, the side gap space is filled with buffer powder, and the upper gap space and the lower gap space are filled with 1 / 2 space volume of buffer powder.

6. The energy-saving and low-noise silicon steel core oil-immersed transformer according to claim 5 is characterized in that: It also includes loose structures, which include: A second connecting rod, which is arranged on the upper slider; A second hinged rod, which is arranged on the top of the second box; A second amplifying rod, one end of which is hinged to the third connecting rod, the second amplifying rod is hinged to the second hinged rod, and the hinged position of the second amplifying rod and the second hinged rod is close to the second hinged rod to play a lever amplification role; The third connecting rod has one end fixedly connected to the second amplifying rod, and the distance between the lower end of the third connecting rod and the top of the piston cylinder is 0.5-1 cm.

7. The energy-saving and low-noise silicon steel core oil-immersed transformer according to claim 6 is characterized in that: A loosening rod is arranged at the lower end of the third connecting rod. The loosening rod is arranged vertically with the third connecting rod, and the loosening rod is parallel to the length direction of the piston cylinder.

8. The energy-saving and low-noise silicon steel core oil-immersed transformer according to claim 5, characterized in that: A felt board is arranged on the outer side of the first box.

9. The energy-saving and low-noise silicon steel core oil-immersed transformer according to claim 1, characterized in that: The heat sink is an S-shaped plate structure with a hollow interior. The bottom of the heat sink is connected to the oil outlet of the oil supply cylinder, and the top of the heat sink is connected to the interior of the first box.

10. The energy-saving and low-noise silicon steel core oil-immersed transformer according to claim 1, characterized in that: The heat dissipation pipe penetrates the heat dissipation element to form a heat dissipation hole in the heat dissipation element.

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