Sound insulation type dry-type transformer

Abstract

The invention provides a sound insulation type dry-type transformer, and relates to the technical field of dry-type transformers, the sound insulation type dry-type transformer comprises a base, a shock absorption and noise reduction structure is installed on the upper end face of the base, a lower clamping piece is connected and installed at the top of the shock absorption and noise reduction structure, and a transformer body is installed above the lower clamping piece; an upper clamping piece is installed on the top of the transformer body, a circulating water cooling structure is further installed on the upper end face of the base, and the circulating water cooling structure is connected with the outer portion of the transformer body in an attached mode. The sound insulation type dry-type transformer can effectively solve the problems that in the prior art, when the dry-type transformer works, certain noise pollution can be caused to the nearby environment, the heat dissipation and cooling effects of the dry-type transformer are poor, and the situation that dust and impurities are prone to being blocked at the position of a fan in an air cooling heat dissipation structure of the dry-type transformer, so that noise generated when the fan works is greatly increased, and the service life of the dry-type transformer is prolonged. And the heat dissipation and cooling effects are greatly reduced, so that the overall service life of the transformer is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of dry-type transformers, and in particular to a sound-insulating dry-type transformer. Background Art

[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment and other places. Simply put, dry-type transformers refer to transformers whose cores and windings are not immersed in insulating oil. Dry-type transformers have the following characteristics: Dry-type transformers do not require insulating oil, so there will be no oil leakage, which is environmentally friendly and suitable for indoor and densely populated areas; due to the absence of flammable insulating oil, dry-type transformers are safer in places with high fire protection requirements; dry-type transformers do not require regular replacement or inspection of oil, and maintenance is relatively simple.

[0003] However, in the prior art, dry-type transformers may generate certain noise when working. This noise mainly comes from electromagnetic vibration and the sound generated when current passes through the conductor, which will cause certain noise pollution to the surrounding environment. Secondly, dry-type transformers need to dissipate heat when working. Although dry-type transformers do not require oil for cooling like oil-immersed transformers, they still generate heat during operation. This is mainly due to the resistance loss of the transformer winding and the hysteresis loss of the iron core. If the heat is not dissipated in time, the heat will accumulate, causing the transformer temperature to rise, thereby affecting the performance and life of the transformer. At present, most dry-type transformers only use air cooling for heat dissipation and cooling, and the heat dissipation and cooling effect is poor. In addition, the fan in its air-cooled heat dissipation structure is prone to clogging with dust and impurities. When clogging occurs at the fan, it will not only greatly increase the noise of the fan when it is working, but also greatly reduce its heat dissipation and cooling effect, thereby reducing the overall service life of the transformer. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that dry-type transformers may generate certain noise when working. This noise mainly comes from electromagnetic vibration and the sound generated when current passes through the conductor, which will cause certain noise pollution to the surrounding environment. Secondly, dry-type transformers need to dissipate heat when working. Although dry-type transformers do not require oil for cooling like oil-immersed transformers, they still generate heat during operation. This is mainly due to the resistance loss of the transformer winding and the hysteresis loss of the iron core. If the heat is not dissipated in time, the heat will accumulate, causing the transformer temperature to rise, thereby affecting the performance and life of the transformer. At present, most dry-type transformers only use air cooling for heat dissipation and cooling, and the heat dissipation and cooling effect is poor. In addition, the fan in its air-cooled heat dissipation structure is prone to dust and impurities clogging. When clogging occurs at the fan, it will not only greatly increase the noise of the fan when working, but also greatly reduce its heat dissipation and cooling effect, thereby reducing the overall service life of the transformer. Provided is a soundproof dry-type transformer.

[0005] In order to achieve the above-mentioned objectives, the present invention adopts the following technical scheme: a sound-insulating dry-type transformer, comprising a base, a shock-absorbing and noise-reducing structure is installed on the upper end surface of the base, a lower clamp is connected and installed at the top of the shock-absorbing and noise-reducing structure, and a transformer body is installed above the lower clamp, an upper clamp is installed at the top of the transformer body, a circulating water cooling structure is also installed at the upper end surface of the base, and the circulating water cooling structure is fitted and connected to the outside of the transformer body, air-cooling structures are installed at the front and rear sides of the lower clamp, a cam transmission structure is also installed at the circulating water cooling structure, a cleaning structure that cooperates with the cam transmission structure is installed at the upper end surface of the base, and the position of the cleaning structure matches the position of the air-cooling structure, sound-absorbing, sound-insulating and noise-reducing structures are installed at the front and rear sides of the upper clamp, and the sound-absorbing, sound-insulating and noise-reducing structures are located at the front and rear sides of the transformer body.

[0006] As mentioned above, the shock-absorbing and noise-reducing structure includes a carrying box, a movable supporting leg, a bottom plate and a first spring. The shock-absorbing and noise-reducing structure is provided with four groups. The four carrying boxes are fixedly mounted on the upper end surface of the base, and the interior of the carrying box is filled with a shear thickening fluid. The bottom end of the movable supporting leg movably passes through the top of the carrying box and extends into the interior of the carrying box, and the top of the movable supporting leg is fixedly connected to the lower clamp through a connecting plate, the top of the bottom plate is fixedly connected to the movable supporting leg, and the two ends of the first spring are respectively fixedly connected to the bottom of the bottom plate and the inner bottom surface of the carrying box.

[0007] As mentioned above, the movable supporting leg is sealed at the place where it passes through the carrying box, the outer wall of the movable supporting leg is a smooth surface, the size of the bottom plate is smaller than the internal size of the carrying box, and the upper surface height of the bottom plate is lower than the liquid level height of the shear thickening fluid filled in the carrying box.

[0008] As mentioned above, the circulating water cooling structure includes a driving motor, a centrifugal pump body, a liquid storage tank and a circulating pipe. The driving motor and the centrifugal pump body are respectively mounted on the upper end surface of the base through a plurality of support plates. The output shaft of the driving motor is connected to the internal structure of the centrifugal pump body. The liquid storage tank is fixedly installed on the upper end surface of the base. The liquid inlet end of the centrifugal pump body is connected to the interior of the liquid storage tank through a connecting pipe and a connecting piece. The circulating pipe is fixedly wound around the outside of the transformer body. One end of the circulating pipe is connected to the liquid outlet end of the centrifugal pump body through a first conduit and a connecting piece, and the other end of the circulating pipe is connected to the top of the liquid storage tank through a second conduit and a connecting piece.

[0009] As mentioned above, a liquid inlet pipe with a cover is provided on the top of the liquid storage tank, a liquid discharge pipe with a valve is provided on one side of the liquid storage tank, a plurality of heat dissipation fins are provided on the front and rear sides of the liquid storage tank, and the heat dissipation fins are made of copper material, the interior of the heat dissipation fins is hollow and connected to the interior of the liquid storage tank, and the first conduit and the second conduit are both hoses.

[0010] As mentioned above, the air cooling structure includes a support plate and a cross flow fan. The support plate is provided in multiple groups, and the multiple groups of support plates are respectively fixedly installed on the front and rear sides of the lower clamp. The cross flow fans are provided in multiple groups, and the multiple cross flow fans are respectively fixedly installed on the upper end surfaces of the multiple groups of support plates through fasteners. The air inlet of the cross flow fan is located on the side, and the air outlet of the cross flow fan is located at the top. The air inlet of the cross flow fan is provided with a dust filter.

[0011] The cam transmission structure mentioned above includes a bearing seat, a transmission shaft, a first pulley, a second pulley and a disc cam. There are two bearing seats, and the two bearing seats are fixedly mounted on the upper end surface of the base. The transmission shaft is rotatably mounted between the two bearing seats, and the end of the transmission shaft passes through the bearing seat. The first pulley is fixedly mounted on the outside of the output shaft of the driving motor, and the second pulley is fixedly mounted on the outside of the transmission shaft. The first pulley and the second pulley are connected by a transmission belt. There are two disc cams, and the two disc cams are fixedly mounted on the outside of the transmission shaft, and the two disc cams are respectively located on one side of the two bearing seats away from each other.

[0012] The cleaning structure comprises a fixed plate, a movable rod, a first transmission plate, a second transmission plate, a second spring and a brush plate, wherein the fixed plates are provided with four, and the four fixed plates are grouped in twos, and the two groups of fixed plates are fixedly installed at the upper end surface of the base, and two movable rods are movably penetrated at the fixed plate, one end of the two movable rods in the same group are fixedly connected to the same first transmission plate, and the other end of the movable rod is connected to the second transmission plate, the second spring is movably sleeved on the outside of the movable rod, and the two ends of the second spring are respectively fixedly connected to the fixed plate and the second transmission plate, and the brush plates are provided with a plurality of them, and the plurality of brush plates are grouped into three, and the three brush plates in the same group are fixedly connected by a connecting rod, and the plurality of groups of brush plates are fixedly connected by a connecting column, wherein the side surfaces of the two brush plates are respectively fixedly connected to the two groups of second transmission plates, and a soft bristle portion is provided on one side of the brush plate near its top, and the bristle portions of the plurality of groups of brush plates are respectively in one-to-one contact with the air inlets of a plurality of cross flow fans.

[0013] The above-mentioned sound-absorbing, sound-insulating and noise-reducing structure includes a horizontal plate, a sound insulation plate and a reflection and refraction plate. There are two horizontal plates, and the two horizontal plates are respectively fixedly installed horizontally at the front and rear sides of the upper clamp. There are four sound insulation plates, and the four sound insulation plates are grouped in twos. The two groups of sound insulation plates are respectively fixedly installed vertically at the bottom of the two horizontal plates, and a spacing is provided between the two sound insulation plates in the same group. There are two reflection and refraction plates, and the reflection and refraction plates are V-shaped, and the reflection and refraction plates are fixedly installed between the two sound insulation plates in the same group.

[0014] As mentioned above, the sound insulation board and the reflection and refraction board are both made of an external metal plate and an internal sound-absorbing material, and the interior of the sound insulation board and the reflection and refraction board are filled with a rock wool material layer.

[0015] Beneficial effects:

[0016] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with a shock-absorbing and noise-reducing structure and a sound-absorbing and noise-insulating structure. When electromagnetic vibration occurs during the operation of the transformer body, the vibration can be transmitted to the movable supporting legs and the bottom plate, and then transmitted to the first spring by the bottom plate. The contraction of the first spring, in conjunction with the shear thickening fluid inside the bearing box, effectively buffers and dampens the vibration, thereby reducing the vibration collision between the device and the building during operation, and then reducing the generation of noise;

[0018] Second, the present invention sets a circulating water cooling structure, and can pump the coolant added in advance in the liquid storage tank into the circulation pipe through the operation of the driving motor, in cooperation with the centrifugal pump body, the connecting pipe and the first conduit, so that it flows in the circulation pipe and finally returns to the liquid storage tank through the second conduit, forming a cycle. During the circulation process, the coolant can exchange heat with the transformer body through the circulation pipe, and play a good water cooling heat exchange and temperature reduction treatment on the transformer body;

[0019] 3. The present invention is provided with a cam transmission structure and a cleaning structure, which can intermittently squeeze the first transmission plate in contact with the disc cam and drive the second transmission plate to move back and forth, thereby driving multiple groups of brush plates to move back and forth. When the brush plates move back and forth, they can automatically clean the air inlets of multiple cross flow fans, thereby effectively avoiding blockage at the air inlets of the cross flow fans. In this way, it can avoid the increase of noise of the cross flow fan due to blockage of the air inlet, and also avoid the reduction of the air cooling effect on the transformer body due to blockage of the air inlet, thus achieving multiple goals at one stroke. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the connection structure between the second conduit and the liquid storage tank according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the installation structure of a cross flow fan according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal dissected structure of a carrying box according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the heat dissipation fin installation position structure of an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the connection structure between the circulation pipe and the first conduit according to an embodiment of the present invention;

[0026] Figure 7 It is a schematic diagram of the transmission structure of the disc cam and the first transmission plate according to an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the distribution structure of the bristle portion of the brush plate according to an embodiment of the present invention;

[0028] Fig. 9 A schematic diagram of the installation structure of the reflective and refractive plate according to an embodiment of the present invention;

[0029] Fig.10 It is a schematic diagram of the exploded structure of the sound insulation board and the reflection and refraction board according to an embodiment of the present invention.

[0030] The numbers in the figure represent: 1. base; 2. shock-absorbing and noise-reducing structure; 201. bearing box; 202. movable supporting legs; 203. bottom plate; 204. first spring; 3. lower clamp; 4. transformer body; 5. upper clamp; 6. circulating water cooling structure; 601. drive motor; 602. centrifugal pump body; 603. liquid storage tank; 604. circulating pipe; 605. first conduit; 606. second conduit; 607. heat dissipation fins; 7. air cooling structure; 701. support plate; 702. cross-flow fan ; 8. Cam transmission structure; 801. Bearing seat; 802. Transmission shaft; 803. First pulley; 804. Second pulley; 805. Disc cam; 806. Transmission belt; 9. Cleaning structure; 901. Fixed plate; 902. Movable rod; 903. First transmission plate; 904. Second transmission plate; 905. Second spring; 906. Brush plate; 907. Brush part; 10. Sound-absorbing, sound-insulating and noise-reducing structure; 1001. Horizontal plate; 1002. Sound-isolating plate; 1003. Reflection and refraction plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1-Figure 10 As shown, the present invention provides a technical solution: a sound-insulating dry-type transformer, comprising a base 1, a shock-absorbing and noise-reducing structure 2 is installed on the upper end surface of the base 1, a lower clamp 3 is connected and installed at the top of the shock-absorbing and noise-reducing structure 2, and a transformer body 4 is installed above the lower clamp 3, an upper clamp 5 is installed at the top of the transformer body 4, a circulating water cooling structure 6 is also installed at the upper end surface of the base 1, and the circulating water cooling structure 6 is fitted and connected to the outside of the transformer body 4, air cooling structures 7 are installed at the front and rear sides of the lower clamp 3, a cam transmission structure 8 is also installed at the circulating water cooling structure 6, a cleaning structure 9 that cooperates with the cam transmission structure 8 is installed at the upper end surface of the base 1, and the position of the cleaning structure 9 matches the position of the air cooling structure 7, and a sound-absorbing, sound-insulating and noise-reducing structure 10 is installed at the front and rear sides of the upper clamp 5, and the sound-absorbing, sound-insulating and noise-reducing structure 10 is located at the front and rear sides of the transformer body 4.

[0033] like Figure 3-Figure 4 As shown, the shock-absorbing and noise-reducing structure 2 includes a carrying box 201, a movable supporting leg 202, a bottom plate 203 and a first spring 204. The shock-absorbing and noise-reducing structure 2 is provided with four groups. The four carrying boxes 201 are fixedly installed on the upper end surface of the base 1, and the interior of the carrying box 201 is filled with a shear thickening fluid. The bottom end of the movable supporting leg 202 movably penetrates the top of the carrying box 201 and extends into the interior of the carrying box 201. The top of the movable supporting leg 202 is fixedly connected to the lower clamp 3 through a connecting plate, the top of the bottom plate 203 is fixedly connected to the movable supporting leg 202, and the two ends of the first spring 204 are respectively connected to the bottom of the bottom plate 203 and the carrying box 20 1 is fixedly connected to the inner bottom surface of the transformer body 4, so that when electromagnetic vibration occurs during operation, the vibration can be transmitted to the movable supporting leg 202 and the bottom plate 203, and then transmitted to the first spring 204 by the bottom plate 203. The contraction of the first spring 204, in conjunction with the shear thickening fluid inside the carrying box 201, effectively buffers and dampens the vibration, thereby reducing the vibration collision between the device and the building during operation, and then reducing the generation of noise. The principle is that in the shear thickening fluid, when subjected to high-speed impact or shear, the viscosity of the fluid will increase significantly. This property can effectively absorb and dissipate the impact energy, thereby playing a role in shock absorption.

[0034] The movable supporting leg 202 passes through the carrying box 201 and is sealed. The outer wall of the movable supporting leg 202 is a smooth surface. The size of the bottom plate 203 is smaller than the internal size of the carrying box 201. The upper surface height of the bottom plate 203 is lower than the liquid level of the shear thickening fluid filled in the carrying box 201, which improves the sealing effect of the carrying box 201 and reduces the sliding friction between the movable supporting leg 202 and the carrying box 201, thereby reducing wear.

[0035] like Figure 2-Figure 3 and Figure 5-Figure 6 As shown, the circulating water cooling structure 6 includes a driving motor 601, a centrifugal pump body 602, a liquid storage tank 603 and a circulating pipe 604. The driving motor 601 and the centrifugal pump body 602 are respectively mounted on the upper end surface of the base 1 through a plurality of support plates. The output shaft of the driving motor 601 is connected to the internal structure of the centrifugal pump body 602. The liquid storage tank 603 is fixedly installed on the upper end surface of the base 1. The liquid inlet end of the centrifugal pump body 602 is connected to the inside of the liquid storage tank 603 through a connecting pipe and a connecting piece. The circulating pipe 604 is fixedly wound around the outside of the transformer body 4. One end of the circulating pipe 604 is connected to the centrifugal pump through a first conduit 605 and a connecting piece. The liquid outlet end of the main body 602 is connected, and the other end of the circulation pipe 604 is connected to the top of the liquid storage tank 603 through the second conduit 606 and the connecting piece, so that the coolant added in advance inside the liquid storage tank 603 can be pumped into the circulation pipe 604 through the operation of the driving motor 601, in cooperation with the centrifugal pump main body 602, the connecting pipe and the first conduit 605, so that it flows in the circulation pipe 604 and finally returns to the liquid storage tank 603 through the second conduit 606, forming a cycle. During the circulation process, the coolant can exchange heat with the transformer main body 4 through the circulation pipe 604, and play a good water-cooling heat exchange and temperature reduction treatment on the transformer main body 4.

[0036] It is understandable that the drive motor 601 can be set to work intermittently rather than continuously through an external programming control device, so as to avoid the drive motor 601 and the centrifugal pump body 602 being damaged by high temperature due to long-term continuous operation;

[0037] A liquid inlet pipe with a cover is provided on the top of the liquid storage tank 603, and a liquid discharge pipe with a valve is provided on one side of the liquid storage tank 603. A plurality of heat dissipation fins 607 are provided on both the front and rear sides of the liquid storage tank 603, and the heat dissipation fins 607 are made of copper material. The interior of the heat dissipation fins 607 is hollow and connected to the interior of the liquid storage tank 603. The first conduit 605 and the second conduit 606 are both hoses. The heat dissipation fins 607 can assist the coolant inside the liquid storage tank 603 in heat exchange with the outside air, so that the coolant inside the liquid storage tank 603 is always at a lower temperature. The first conduit 605 and the second conduit 606 are both hoses to avoid movement obstruction between the first conduit 605 and the second conduit 606 and the circulation pipe 604 when the device vibrates.

[0038] like Figure 3 As shown, the air cooling structure 7 includes a supporting plate 701 and a cross flow fan 702. The supporting plate 701 is provided with multiple groups, and the multiple groups of supporting plates 701 are respectively fixedly installed on the front and rear sides of the lower clamp 3. There are multiple cross flow fans 702, and the multiple cross flow fans 702 are respectively fixedly installed on the upper end surfaces of the multiple groups of supporting plates 701 through fasteners. The air inlet of the cross flow fan 702 is located on the side, and the air outlet of the cross flow fan 702 is located on the top. The air inlet of the cross flow fan 702 is provided with a dust filter, so that when working, the transformer body 4 can be well cooled and cooled by the operation of the multiple cross flow fans 702.

[0039] like Figure 7 As shown, the cam transmission structure 8 includes a bearing seat 801, a transmission shaft 802, a first pulley 803, a second pulley 804 and a disc cam 805. There are two bearing seats 801, and the two bearing seats 801 are fixedly installed at the upper end surface of the base 1. The transmission shaft 802 is rotatably installed between the two bearing seats 801, and the end of the transmission shaft 802 passes through the bearing seat 801. The first pulley 803 is fixedly mounted on the outside of the output shaft of the driving motor 601, and the second pulley 804 is fixedly mounted on the outside of the transmission shaft 802. The first pulley 803 and the second pulley 804 are fixedly mounted on the outside of the transmission shaft 802. The pulleys 804 are connected through a transmission belt 806, and two disc cams 805 are provided. The two disc cams 805 are fixedly mounted on the outside of the transmission shaft 802, and the two disc cams 805 are respectively located on the side of the two bearing seats 801 that are away from each other, so that when the driving motor 601 is working, it can drive the first pulley 803 to rotate. The rotation of the first pulley 803 can cooperate with the transmission belt 806 to drive the second pulley 804 to rotate, thereby driving the transmission shaft 802 to rotate. When the transmission shaft 802 rotates, it can drive the two disc cams 805 to rotate.

[0040] like Figure 1-Figure 2 and Figure 7-Figure 8As shown, the cleaning structure 9 includes a fixed plate 901, a movable rod 902, a first transmission plate 903, a second transmission plate 904, a second spring 905 and a brush plate 906. Four fixed plates 901 are provided, and the four fixed plates 901 are grouped in pairs. The two groups of fixed plates 901 are fixedly installed on the upper end surface of the base 1. Two movable rods 902 are movably penetrated at the fixed plate 901. One end of the two movable rods 902 in the same group is fixedly connected to the same first transmission plate 903, and the other end of the movable rod 902 is fixedly connected to the first transmission plate 903. A second transmission plate 904 is connected, a second spring 905 is movably mounted on the outside of the movable rod 902, and both ends of the second spring 905 are fixedly connected to the fixed plate 901 and the second transmission plate 904 respectively. A plurality of brush plates 906 are provided, and a plurality of brush plates 906 form a group of three. The three brush plates 906 in the same group are fixedly connected by a connecting rod, and the plurality of groups of brush plates 906 are fixedly connected by a connecting column, wherein the sides of two brush plates 906 are fixedly connected to the two groups of second transmission plates 904 respectively, A soft bristle portion 907 is provided near the top of one side of the brush plate 906. The bristle portions 907 of the multiple groups of brush plates 906 are in one-to-one contact with the air inlets of the multiple cross-flow fans 702, so that when the two disc cams 805 rotate, the first transmission plate 903 in contact with the disc cam 805 can be intermittently squeezed. After the first transmission plate 903 is squeezed, the movable rod 902 is driven to move back and forth. The reciprocating movement of the movable rod 902 drives the second transmission plate 904 to move back and forth, and the second spring 905 is reversed. The reciprocating movement of the second transmission plate 904 can drive the multiple groups of brush plates 906 to move back and forth. When the brush plates 906 move back and forth, they can automatically clean and clear the air inlets of multiple cross flow fans 702, thereby effectively avoiding blockage at the air inlets of the cross flow fans 702. In this way, it can avoid the cross flow fans 702 from increasing noise due to blockage at the air inlets, and also avoid the cross flow fans 702 from reducing the air cooling effect on the transformer body 4 due to blockage at the air inlets, thus achieving multiple goals at one stroke.

[0041] like Figure 9-10As shown, the sound-absorbing, sound-insulating and noise-reducing structure 10 comprises a horizontal plate 1001, a sound-isolating plate 1002 and a reflection and refraction plate 1003. Two horizontal plates 1001 are provided, and the two horizontal plates 1001 are respectively fixedly installed horizontally at the front and rear sides of the upper clamp 5. Four sound-isolating plates 1002 are provided, and the four sound-isolating plates 1002 are grouped in pairs. The two groups of sound-isolating plates 1002 are respectively fixedly installed vertically at the bottom of the two horizontal plates 1001. A spacing is provided between the two sound-isolating plates 1002 in the same group. Two reflection and refraction plates 1003 are provided, and the reflection and refraction plates 1003 are V-shaped. The reflection and refraction plate 1003 is fixedly installed between the two sound insulation plates 1002 of the same group, so that when the transformer body 4 is working, the two groups of sound insulation plates 1002 can cooperate with the two reflection and refraction plates 1003 to effectively absorb and soundproof the noise generated by electromagnetic vibration and current passing through the conductor when the transformer body 4 is working, and the reflection and refraction plate 1003 with a V-shaped design can cooperate with the two sound insulation plates 1002 to effectively refract and reflect the propagation of noise, thereby greatly reducing the propagation of noise and achieving the purpose of sound insulation.

[0042] The sound insulation board 1002 and the reflection and refraction board 1003 are both made of an external metal plate and an internal sound-absorbing material. The interior of the sound insulation board 1002 and the reflection and refraction board 1003 are filled with a rock wool material layer. The external metal plate can improve the strength of the sound insulation board 1002 and the reflection and refraction board 1003, making it less likely to deform, break or be damaged, while the internal rock wool material layer can achieve a good sound absorption effect.

[0043] Working principle: When electromagnetic vibration occurs during the operation of the transformer body 4, the vibration can be transmitted to the movable support legs 202 and the bottom plate 203, and then transmitted to the first spring 204 by the bottom plate 203. The contraction of the first spring 204, in conjunction with the shear thickening fluid inside the carrying box 201, can effectively buffer and damp the vibration, thereby reducing the vibration collision between the device and the building during operation, and further reducing the generation of noise. The principle is that in a shear thickening fluid, when subjected to high-speed impact or shear, the viscosity of the fluid will increase significantly. This property can effectively absorb and dissipate impact energy, thereby playing a role in damping. When the transformer body 4 is working, two sets of sound insulation boards 1002 can be used in conjunction with two anti- The reflective refraction plate 1003 can effectively absorb and insulate the noise generated by electromagnetic vibration and current passing through the conductor when the transformer body 4 is working, and the reflective refraction plate 1003 with a V-shaped design can cooperate with the two sound insulation plates 1002 to effectively refract and reflect the propagation of noise, thereby greatly reducing the propagation of noise and achieving the purpose of sound insulation. When the transformer body 4 is working, the transformer body 4 can be well cooled and cooled by the operation of multiple cross-flow fans 702. At the same time, the coolant added in advance in the liquid storage tank 603 can be pumped to the circulation pipe 604 by the operation of the driving motor 601 in cooperation with the centrifugal pump body 602, the connecting pipe and the first conduit 605. In the circulation pipe 604, the coolant flows through the second conduit 606 and finally returns to the liquid storage tank 603 to form a cycle. During the circulation process, the coolant can exchange heat with the transformer body 4 through the circulation pipe 604, and the transformer body 4 can be effectively cooled by water. When the driving motor 601 is working, the first pulley 803 can be driven to rotate. The rotation of the first pulley 803 can cooperate with the transmission belt 806 to drive the second pulley 804 to rotate, thereby driving the transmission shaft 802 to rotate. When the transmission shaft 802 rotates, the two disc cams 805 can be driven to rotate. When the two disc cams 805 rotate, the first transmission shaft 803 in contact with the disc cam 805 can be intermittently squeezed. The movable plate 903, after the first transmission plate 903 is squeezed, drives the movable rod 902 to move back and forth, the reciprocating movement of the movable rod 902 drives the second transmission plate 904 to move back and forth, and the second spring 905 repeatedly expands and contracts, and the reciprocating movement of the second transmission plate 904 can drive multiple groups of brush plates 906 to move back and forth. When the brush plates 906 move back and forth, they can automatically clean and clear the air inlets of multiple cross flow fans 702, thereby effectively avoiding blockage at the air inlet of the cross flow fan 702. In this way, it can avoid the cross flow fan 702 from increasing noise due to blockage in the air inlet, and it can also avoid the cross flow fan 702 from reducing the air cooling effect on the transformer body 4 due to blockage in the air inlet, achieving multiple goals at one stroke.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soundproof dry-type transformer, comprising a base (1), characterized in that: The upper end surface of the base (1) is installed with a vibration reduction and noise reduction structure (2), the top of the vibration reduction and noise reduction structure (2) is connected with a lower clamp (3), and a transformer body (4) is installed above the lower clamp (3), and an upper clamp (5) is installed at the top of the transformer body (4). A circulating water cooling structure (6) is also installed at the upper end surface of the base (1), and the circulating water cooling structure (6) is connected to the outside of the transformer body (4), and the front and rear sides of the lower clamp (3) are connected to the upper end surface of the base (1). An air cooling structure (7) is installed at each of the upper clamps (5), a cam transmission structure (8) is also installed at the circulating water cooling structure (6), a cleaning structure (9) that cooperates with the cam transmission structure (8) is installed at the upper end surface of the base (1), and the position of the cleaning structure (9) matches the position of the air cooling structure (7), and sound absorption, sound insulation and noise reduction structures (10) are installed at the front and rear sides of the upper clamp (5), and the sound absorption, sound insulation and noise reduction structures (10) are located at the front and rear sides of the transformer body (4).

2. A soundproof dry-type transformer according to claim 1, characterized in that: The shock-absorbing and noise-reducing structure (2) comprises a carrying box (201), a movable supporting leg (202), a bottom plate (203) and a first spring (204). The shock-absorbing and noise-reducing structure (2) is provided with four groups. The four carrying boxes (201) are fixedly installed on the upper end surface of the base (1), and the interior of the carrying box (201) is filled with a shear thickening fluid. The bottom end of the movable supporting leg (202) movably passes through the top of the carrying box (201) and extends into the interior of the carrying box (201), and the top of the movable supporting leg (202) is fixedly connected to the lower clamp (3) through a connecting plate, and the top of the bottom plate (203) is fixedly connected to the movable supporting leg (202). The two ends of the first spring (204) are respectively fixedly connected to the bottom of the bottom plate (203) and the inner bottom surface of the carrying box (201).

3. A soundproof dry-type transformer according to claim 2, characterized in that: The movable support leg (202) passes through the carrying box (201) and is sealed. The outer wall of the movable support leg (202) is a smooth surface. The size of the bottom plate (203) is smaller than the internal size of the carrying box (201). The upper surface height of the bottom plate (203) is lower than the liquid level height of the shear thickening fluid filled in the carrying box (201).

4. A soundproof dry-type transformer according to claim 1, characterized in that: The circulating water cooling structure (6) comprises a driving motor (601), a centrifugal pump body (602), a liquid storage tank (603) and a circulating pipe (604); the driving motor (601) and the centrifugal pump body (602) are respectively mounted on the upper end surface of the base (1) via a plurality of support plates; the output shaft of the driving motor (601) is connected to the internal structure of the centrifugal pump body (602); the liquid storage tank (603) is fixedly mounted on the upper end surface of the base (1); The liquid inlet end of the centrifugal pump body (602) is connected to the inside of the liquid storage tank (603) through a connecting pipe and a connecting piece, the circulation pipe (604) is fixedly wound around the outside of the transformer body (4), one end of the circulation pipe (604) is connected to the liquid outlet end of the centrifugal pump body (602) through a first conduit (605) and a connecting piece, and the other end of the circulation pipe (604) is connected to the top of the liquid storage tank (603) through a second conduit (606) and a connecting piece.

5. A soundproof dry-type transformer according to claim 4, characterized in that: A liquid inlet pipe with a cover is provided on the top of the liquid storage tank (603), a liquid discharge pipe with a valve is provided on one side of the liquid storage tank (603), a plurality of heat dissipation fins (607) are provided on both the front and rear sides of the liquid storage tank (603), and the heat dissipation fins (607) are made of copper material, the interior of the heat dissipation fins (607) is of hollow design and is connected to the interior of the liquid storage tank (603), and the first conduit (605) and the second conduit (606) are both hoses.

6. A soundproof dry-type transformer according to claim 1, characterized in that: The air cooling structure (7) includes a supporting plate (701) and a cross-flow fan (702). The supporting plate (701) is provided in multiple groups, and the multiple groups of supporting plates (701) are respectively fixedly installed on the front and rear sides of the lower clamp (3). The cross-flow fans (702) are provided in multiple groups, and the multiple cross-flow fans (702) are respectively fixedly installed on the upper end surfaces of the multiple groups of supporting plates (701) by fasteners. The air inlet of the cross-flow fan (702) is located on the side, and the air outlet of the cross-flow fan (702) is located on the top. The air inlet of the cross-flow fan (702) is provided with a dust filter.

7. A sound-insulated dry-type transformer according to claim 4, characterized in that: The cam transmission structure (8) comprises a bearing seat (801), a transmission shaft (802), a first pulley (803), a second pulley (804) and a disc cam (805). Two bearing seats (801) are provided. Both bearing seats (801) are fixedly mounted on the upper end surface of the base (1). The transmission shaft (802) is rotatably mounted between the two bearing seats (801), and the end of the transmission shaft (802) passes through the bearing seat (801). The first pulley (803) is fixedly sleeved. The drive motor (601) is mounted on the outside of its output shaft. The second pulley (804) is fixedly mounted on the outside of the transmission shaft (802). The first pulley (803) and the second pulley (804) are connected to each other via a transmission belt (806). Two disc cams (805) are provided. Both disc cams (805) are fixedly mounted on the outside of the transmission shaft (802). The two disc cams (805) are respectively located on the side of the two bearing seats (801) that are away from each other.

8. The sound-insulated dry-type transformer according to claim 7, characterized in that: The cleaning structure (9) comprises a fixed plate (901), a movable rod (902), a first transmission plate (903), a second transmission plate (904), a second spring (905) and a brush plate (906). The fixed plates (901) are provided with four, and the four fixed plates (901) are arranged in groups of two. The two groups of fixed plates (901) are fixedly installed on the upper end surface of the base (1). Two movable rods (902) are movably provided through the fixed plates (901). One end of the two movable rods (902) in the same group are fixedly connected to the same first transmission plate (903). The other end of the movable rod (902) is connected to the second transmission plate (904). The second spring (905) is movably sleeved on the movable rod (9 02), and the two ends of the second spring (905) are respectively fixedly connected to the fixed plate (901) and the second transmission plate (904), the brush plates (906) are provided in plurality, and the plurality of brush plates (906) are grouped into three, and the three brush plates (906) in the same group are fixedly connected by connecting rods, and the plurality of groups of brush plates (906) are fixedly connected by connecting columns, wherein the side surfaces of two brush plates (906) are respectively fixedly connected to the two groups of second transmission plates (904), and a soft bristle portion (907) is provided on one side of the brush plate (906) near the top thereof, and the bristle portions (907) of the plurality of groups of brush plates (906) are respectively in one-to-one contact with the air inlets of the plurality of cross flow fans (702).

9. The sound-insulated dry-type transformer according to claim 1, characterized in that: The sound-absorbing, sound-insulating and noise-reducing structure (10) comprises a transverse plate (1001), a sound insulation plate (1002) and a reflection and refraction plate (1003). Two transverse plates (1001) are provided, and the two transverse plates (1001) are respectively fixedly installed horizontally at the front and rear sides of the upper clamp (5). Four sound insulation plates (1002) are provided, and the four sound insulation plates (1002) are arranged in groups of two. The two groups of sound insulation plates (1002) are respectively fixedly installed vertically at the bottom of the two transverse plates (1001). A spacing is provided between the two sound insulation plates (1002) in the same group. Two reflection and refraction plates (1003) are provided, and the reflection and refraction plates (1003) are V-shaped. The reflection and refraction plates (1003) are fixedly installed between the two sound insulation plates (1002) in the same group.

10. A sound-insulated dry-type transformer according to claim 9, characterized in that: The sound insulation board (1002) and the reflection and refraction board (1003) are both made of an external metal plate and an internal sound-absorbing material, and the interior of the sound insulation board (1002) and the reflection and refraction board (1003) are both filled with a rock wool material layer.

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