A dry-type transformer for computing centers and its heat dissipation and noise reduction device

Abstract

This invention discloses a dry-type transformer for computing centers and its heat dissipation and noise reduction device, belonging to the field of dry-type transformer heat dissipation and noise reduction technology. The device includes an iron core and transformer windings wound around the outside of the iron core. A heat dissipation and noise reduction device is provided on the outer wall of the transformer windings. Several partition bosses are integrally formed on the outer wall of the transformer windings, and several axially arranged turbulence ribs are provided between the partition bosses. This invention constructs a heat exchange optimization system that coordinates macroscopic flow control and microscopic turbulence by integrally forming partition bosses and axial micro-turbulence ribs on the outer wall of the windings. The partition bosses cut complete annular channels, eliminating large-scale vortices and directly reducing vortex resistance and corresponding aerodynamic noise. The micro-turbulence ribs, in conjunction with the gaps between the bosses, act on the thin layer of airflow on the wall surface, breaking the thick thermal boundary layer and enhancing convective heat transfer on the wall. With minimal increase in local frictional resistance, it achieves simultaneous optimization of total wind resistance, aerodynamic noise, and heat dissipation uniformity.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation and noise reduction technology for dry-type transformers, specifically a dry-type transformer for computing centers and its heat dissipation and noise reduction device. Background Technology

[0002] The power distribution of computing centers has high requirements for equipment reliability and environmental adaptability. Epoxy resin cast dry-type transformers are widely used due to their excellent insulation and fire resistance. Their heat dissipation relies on natural convection or forced air cooling through the outer annular air duct. The operating noise includes both solid-borne sound from the iron core and aerodynamic noise from the air duct.

[0003] The outer wall of the existing epoxy casting winding is a smooth cylindrical surface after demolding. The matching heat dissipation device mostly adopts a straight ventilation structure with bottom inlet and top outlet. Some solutions add fixed guide components to optimize airflow. Vibration reduction mostly adopts a single-layer buffer structure at the bottom to weaken vibration transmission.

[0004] However, the above structure still has defects: the airflow in the smooth annular air passage is prone to large-scale radial movement, forming large-scale high-energy turbulence, which not only increases the total air resistance and aerodynamic noise of the air passage, but also causes the wall laminar boundary layer to be too thick and the heat exchange efficiency to be poor; increasing the wind speed to control the temperature will further aggravate the noise, making it difficult to achieve a balance between heat dissipation and noise reduction, and it cannot be well adapted to the low-noise operation requirements of the computing center under long-term high load. Summary of the Invention

[0005] The purpose of this invention is to provide a dry-type transformer for computing centers and its heat dissipation and noise reduction device, so as to solve the problems of high total air resistance and aerodynamic noise in the heat dissipation and noise reduction device of transformers in the prior art, as well as poor heat exchange efficiency.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solution: a dry-type transformer for computing center, including an iron core and a transformer winding wound on the outside of the iron core, wherein the outer wall of the transformer winding is provided with a heat dissipation and noise reduction device, and the outer wall of the transformer winding is integrally formed with a plurality of partition bosses, and a plurality of turbulence ribs are provided between the plurality of partition bosses.

[0007] Preferably, an annular air passage is provided between the transformer winding and the heat dissipation and noise reduction device, and the radial height of the partition boss is half the radial width of the annular air passage.

[0008] Preferably, the transformer winding includes a low-voltage winding and a high-voltage winding. The low-voltage winding is wound with thin copper foil axial gradient transposition, and the transposition pitch gradually decreases from top to bottom along the axial direction of the transformer winding. The high-voltage winding is wound with self-adhesive transposition wire. A semi-conductive shielding layer is provided on the outer side of the low-voltage winding and the inner side of the high-voltage winding.

[0009] Preferably, the outer surface of the semiconductive shielding layer is roughened to have both electric field homogenization and wall turbulence effects, which is used to break the laminar boundary layer of the transformer winding wall and improve the convective heat transfer efficiency of the transformer winding surface.

[0010] A heat dissipation and noise reduction device for a dry-type transformer used in a computing center includes a housing that covers the outside of the transformer windings. An air supply and flow equalization mechanism for introducing airflow is provided below the housing. The air supply and flow equalization mechanism includes a mounting frame with several flow equalization ports along its edge. An air supply assembly is provided below the mounting frame. A cover is provided on the top of the housing, with several exhaust ports along its edge. The flow equalization ports correspond to the exhaust ports. A shock-absorbing connector is provided between the top of the mounting frame and the bottom of the transformer windings. A buffer pad is provided between the edge of the mounting frame and the bottom of the housing.

[0011] Preferably, the inner wall of the housing is provided with a plurality of placement slots, and the inner wall of each of the plurality of placement slots is rotatably connected with a guide vane. A flip push rod for driving the guide vane to rotate and shift is provided in the middle of each of the plurality of placement slots.

[0012] Preferably, each of the several guide vanes has a drainage cavity inside, the bottom of the drainage cavity extends to the bottom of the guide vane, and several inclined diversion ports are provided on both sides of the drainage cavity.

[0013] Preferably, a damping component for suppressing the vibration of the guide vane is provided between the output end of the flip push rod and the guide vane. The damping component includes a push block, one side of which is rotatably connected to the output end of the flip push rod, and a receiving shaft is rotatably connected to the end of the push block. A groove is provided on the side of the guide vane near the damping component, and the receiving shaft is slidably connected in the groove. A damping contact pad is fixedly connected to the edge of the push block near the guide vane. An outer cover plate is fixedly connected to the middle of the housing, and several flip push rods are fixedly installed on the inner wall of the outer cover plate.

[0014] Preferably, the air supply assembly includes an air inlet shroud, an air inlet frame is fixedly connected to the bottom of the air inlet shroud, a plurality of air inlet slots are provided along the edge of the air inlet frame, the lower half of the inner wall of the air inlet slot is set as an open shape, the upper half of the air inlet slot is provided with a vertical flow channel, and a cooling fan is fixedly installed in the middle of the air inlet frame.

[0015] Preferably, the guide vane is a vertical rectangular plate, and one vertical edge of the guide vane is hinged to one side of the inner wall of the placement groove, and swings in the horizontal plane around the vertical axis.

[0016] Preferably, the shock-absorbing connector includes two parallel support plates arranged vertically, a plurality of buffer sleeves are provided between the two support plates, a buffer rod is slidably connected to the inner wall of each buffer sleeve, and a shock-absorbing spring is fixedly connected between the bottom of the buffer rod and the bottom of the inner wall of the buffer sleeve.

[0017] Compared with the prior art, the beneficial effects of this application are as follows: 1. The dry-type transformer for computing centers of this invention constructs a heat transfer optimization system that combines macroscopic flow control and microscopic disturbance by integrally forming a separating boss and axial micro-turbulence ribs on the outer wall of the winding. The separating boss cuts a complete annular channel, eliminating large-scale vortices and directly reducing vortex drag and corresponding aerodynamic noise. The micro-turbulence ribs, in conjunction with the gaps between the bosses, act on the thin layer of airflow on the wall, breaking the thick thermal boundary layer and enhancing convective heat transfer on the wall. Both achieve simultaneous optimization of total air resistance, aerodynamic noise, and heat dissipation uniformity with minimal increase in local frictional resistance.

[0018] 2. The heat dissipation and noise reduction device of the present invention adopts a bottom-inlet and top-outlet uniform air supply architecture to ensure uniform circumferential air supply in the annular air duct and avoid local heat concentration. On this basis, a flip-up and retractable guide vane is added, which can adjust the air duct shape according to the operating load: under low load, the vane is retracted into the placement slot, releasing the complete flow cross section to reduce natural cooling resistance; under high load, the vane unfolds and precisely docks with the winding separation boss, further enhancing the vortex suppression effect of the flow duct separation. Furthermore, the vane has a bottom-through flow guide cavity and an inclined flow splitting port inside, which transforms the airflow blocked on the front into a directional wall-attached jet, which not only reduces the wind resistance of the vane itself, but also actively disturbs the airflow layer on the wall, helping to improve heat exchange efficiency. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention; Figure 3 This is a front cross-sectional view of the present invention; Figure 4 This is a three-dimensional schematic diagram of the position and structure of the winding of the present invention; Figure 5 This is a schematic diagram of the working state of the guide vane of the present invention when it is being stored; Figure 6 This is a schematic diagram of the working state of the guide vanes of the present invention when they are deployed; Figure 7 This is a top cross-sectional view of the guide vane of the present invention; Figure 8 This is the present invention. Figure 6 Enlarged schematic diagram of local structure A in the middle; Figure 9 This is a cross-sectional schematic diagram of the air intake component of the present invention.

[0020] Explanation of reference numerals in the attached figures: 101. Housing; 102. Winding; 103. Separating boss; 104. Baffle rib; 201. Air inlet hood; 202. Air inlet frame; 203. Mounting bracket; 204. Air inlet slot; 205. Receiving plate; 206. Cooling fan; 207. Buffer pad; 208. Buffer sleeve; 209. Buffer rod; 210. Cover; 211. Exhaust port; 301. Placement slot; 302. Guide vane; 303. Flip push rod; 304. Receiving shaft; 305. Slide groove; 306. Push block; 307. Shock-absorbing contact pad; 308. Outer cover plate; 309. Drainage cavity; 310. Diverter port. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0022] Example 1 In existing computing centers, the outer wall of the epoxy resin-cast dry-type transformer winding 102 is naturally a smooth cylindrical surface after vacuum casting and demolding. The smooth wall itself has low frictional resistance, and when the cooling airflow passes through it, it is easy to cause large-scale radial turbulence, resulting in high-energy turbulence. This turbulence will bring great eddy drag and broadband aerodynamic noise. At the same time, the smooth wall will form a continuous and stable laminar thermal boundary layer, which will result in poor convective heat transfer efficiency. To control the temperature rise of winding 102, the fan speed must be increased, but increasing the fan speed will exponentially amplify the turbulence noise, which cannot meet the long-term low-noise, high-load continuous operation requirements of computing centers.

[0023] like Figure 2 and Figure 4 In this embodiment, a dry-type transformer for a computing center includes an iron core and a transformer winding 102 wound around the outside of the iron core. The outer wall of the transformer winding 102 is provided with a heat dissipation and noise reduction device. The outer wall of the transformer winding 102 is integrally formed with a plurality of partition bosses 103. A plurality of turbulence ribs 104 are provided between the plurality of partition bosses 103. An annular air passage is provided between the transformer winding 102 and the heat dissipation and noise reduction device.

[0024] When this dry-type transformer is in operation: the cooling airflow flows axially along the annular air passage, and the partition boss 103 forms a physical guide and limit on the airflow in the circumferential direction, cutting off the conditions for the generation of large-scale turbulence, thereby significantly reducing the vortex resistance and corresponding aerodynamic noise; the turbulence ribs 104 distributed in the gaps between the bosses have a low height, which only slightly increases the local frictional resistance of the wall, but can stably break the laminar thermal boundary layer formed by the smooth wall, enhance the convective heat transfer capacity of the wall, and require a lower air supply velocity under the same temperature rise index, and the fan operating noise is reduced accordingly. This makes the total air passage resistance and the aerodynamic noise of the whole machine better than the pure smooth outer wall structure, while reducing the circumferential temperature difference of the winding 102.

[0025] It should be emphasized that the core improvement of this embodiment lies in the integral molding of the separating boss 103 and the turbulence rib 104 on the outer wall of the winding 102, which is cast in conventional smooth epoxy. By relying on the macroscopic structure to limit the airflow and eliminate large vortices, the heat exchange effect is enhanced by the microscopic boundary layer disturbance. With a small increase in local frictional resistance, a significant reduction in total wind resistance and noise is achieved. Without damaging the original insulation and dustproof basic performance of the winding 102, the heat dissipation uniformity of the transformer is improved and turbulence noise is reduced, making it suitable for the high-load operation conditions of the computing center.

[0026] It should be noted that the height of the partition boss 103 is half the radial width of the air passage. This not only effectively limits and suppresses the generation of large airflow vortices during airflow, but also avoids excessive occupation of the flow cross section and significant increase in natural convection resistance during natural cooling mode.

[0027] Example 2 It is understandable that in Embodiment 1, since the load of the transformer in the computing center contains a large number of high-order harmonics, the conventional winding 102 will produce significant skin effect and proximity effect, resulting in large harmonic additional losses. This leads to a large overall heat generation of the winding 102, which continuously increases the heat dissipation load of the air duct. It is necessary to increase the air volume and air speed to control the temperature, but this will offset the noise reduction benefits brought by Embodiment 1.

[0028] To address the aforementioned issues, the transformer winding 102 comprises a low-voltage winding 102 and a high-voltage winding 102. The low-voltage winding 102 is wound with copper foil axial gradient transposition, with the transposition pitch gradually decreasing from top to bottom along the axial direction of the transformer winding 102. The high-voltage winding 102 is wound with self-adhesive transposition wire. Semi-conductive shielding layers are provided on both the outer side of the low-voltage winding 102 and the inner side of the high-voltage winding 102. The outer surface of the semi-conductive shielding layer is roughened to provide both electric field homogenization and wall turbulence, thereby breaking the laminar boundary layer on the wall of the transformer winding 102 and improving the convective heat transfer efficiency of the transformer winding 102 surface.

[0029] It should be emphasized that the core improvement of this embodiment lies in: optimizing harmonic losses from the internal electromagnetic structure of winding 102; gradient transposition and transposed conductors can significantly reduce the additional eddy current losses caused by harmonics; reducing the total heat generation from the heat source end; lowering the required ventilation speed; and further amplifying the noise reduction effect of the partition boss 103 and the turbulence rib 104 in embodiment one; at the same time, a textured semi-conductive shielding layer is provided to supplement the wall surface micro-turbulence effect on the basis of ensuring the uniformity of the insulation electric field, forming a multi-level heat transfer enhancement with the outer wall boss and ribs in embodiment one, thus doubly reducing the temperature rise of winding 102 and adapting to the nonlinear high harmonic load of the computing center.

[0030] It should be noted that the winding 102 is set with a gradually changing transposition pitch along the axial height. The transposition pitch at the upper end of the winding 102 is larger and gradually decreases downwards. This can match the uneven axial distribution of harmonic current, balance the eddy current loss of the strands at various points along the axial direction of the winding 102, effectively reduce the axial temperature difference of the winding 102, and improve the overall temperature distribution uniformity.

[0031] Example 3 Existing dry-type transformer cooling and noise reduction devices only have a simple casing 101 and a bottom air supply structure, lacking a layered airflow equalization design. The concentrated circumferential airflow distribution exacerbates localized heat concentration in the windings 102, thus necessitating an increase in the overall airflow volume. Furthermore, the turbulent airflow at the intake results in significant turbulent noise. To address these issues, please refer to [reference needed]. Figures 1 to 4 This embodiment provides a heat dissipation and noise reduction device for a dry-type transformer used in a computing center, including a housing 101, which covers the outside of the transformer winding 102. An air supply and flow equalization mechanism for supplying airflow is provided below the housing 101. The air supply and flow equalization mechanism includes a mounting frame 203, with a plurality of flow equalization ports opened along the edge of the mounting frame 203. An air supply assembly is provided below the mounting frame 203. A cover 210 is provided on the top of the housing 101, with a plurality of exhaust ports 211 opened along the edge of the cover 210. The plurality of flow equalization ports and the plurality of exhaust ports 211 are correspondingly arranged. A shock-absorbing connector is provided between the top of the mounting frame 203 and the bottom of the transformer winding 102. A buffer pad 207 is provided between the edge of the mounting frame 203 and the bottom of the housing 101. The air supply assembly includes an air inlet shroud 201, the top edge of which is fixedly connected to the bottom of the mounting bracket 203. An air inlet frame 202 is fixedly connected to the bottom of the air inlet shroud 201. Several air inlet slots 204 are provided along the edge of the air inlet frame 202. The lower half of the inner wall of the air inlet slot 204 is open, and the upper half of the air inlet slot 204 is provided with a vertical flow channel. A cooling fan 206 is fixedly installed in the middle of the air inlet frame 202.

[0032] The working principle of this device is as follows: outside air is regulated and weakened by the segmented structure of the air inlet slot 204, and then enters the air inlet hood 201. It is pressurized and delivered to the mounting bracket 203 by the cooling fan 206. The airflow is evenly distributed in the circumference of the airflow into the annular air passage. After the airflow exchanges heat upward, it is discharged from the top exhaust port 211. The even distribution of airflow can avoid local hot spots and eliminate the need to increase the fan speed. The vibration of the motor is attenuated by the vibration damping connector and the buffer pad 207, which reduces the vibration transmission to the housing 101 and thus reduces air noise.

[0033] It should be emphasized that the core improvement of this embodiment is that by constructing a straight-through uniform air supply structure with bottom inlet and top outlet, the defects of turbulent airflow and uneven heat dissipation in traditional devices are solved. It can be used in conjunction with the optimized winding 102 body in Embodiment 1 and Embodiment 2 to reduce the operating load of the fan and fully release the low-noise heat dissipation advantages of the winding 102 separation boss 103 and the turbulence rib 104, so as to achieve coordinated heat dissipation and noise reduction of heat source and air passage.

[0034] It should be noted that, such as Figure 9 The segmented structure of the air inlet slot 204, with the lower half open and the upper half vertical direct flow channel, ensures the total amount of air intake while constraining the airflow direction and reducing the turbulent noise at the fan inlet.

[0035] It should be noted that, such as Figure 3 The housing 101 and the cover 210 together form a closed ventilation cavity, reducing air leakage. At the same time, the housing 101 itself has sound insulation capabilities, blocking the radiation of noise from inside the airway.

[0036] It should be noted that the specific structure of the shock-absorbing connector can be implemented with reference to existing technical means. In this embodiment, the shock-absorbing connector includes two parallel support plates 205, and a plurality of buffer sleeves 208 are provided between the two support plates 205. The inner walls of the plurality of buffer sleeves 208 are slidably connected with buffer rods 209, and shock-absorbing springs are fixedly connected between the bottom of the buffer rods 209 and the bottom of the inner wall of the buffer sleeves 208.

[0037] Example 4 It is understandable that in Embodiment 3, the internal annular air passage has a fixed cross-section, making it impossible to adaptively adjust the ventilation state according to the load and temperature of the winding 102; under low-load natural cooling conditions, the fixed narrow flow passage has high wind resistance, requiring frequent fan starts to generate continuous wind noise; under high-load forced air cooling conditions, the complete large-section air passage lacks separation constraints, which will regenerate a large area of ​​high-energy turbulence, offsetting the effect of the winding 102 separation boss 103 in Embodiment 1 in suppressing large vortices, resulting in poor adaptability to heat dissipation and noise reduction conditions.

[0038] like Figures 2 to 7To address the aforementioned issues, the inner wall of the housing 101 is provided with several placement slots 301. Each placement slot 301 has a guide vane 302 rotatably connected to its inner wall. A flip-up push rod 303 for driving the guide vane 302 to rotate and shift is located in the center of each placement slot 301. The guide vane 302 is a vertical rectangular plate, with one vertical edge hinged to one side of the inner wall of the placement slot 301, allowing it to swing horizontally around a vertical axis.

[0039] It should be emphasized that the core improvement of this embodiment lies in the following: by adding several guide vanes 302, a uniform fan-shaped flow channel is divided within the annular air passage, preventing the generation of large-scale vortices, further enhancing turbulence suppression and wall-mounted heat transfer, and maximizing the low-resistance and low-noise effect of the winding 102 boss and the turbulence rib 104. At the same time, through the flipping mechanism, the opening of all the vanes is controlled synchronously. During low-load natural cooling, the vanes retract to release the complete flow cross section and reduce natural cooling resistance; during high load, the guide vanes 302 expand to reduce the separation effect on the annular heat dissipation, and the width of the guide vanes 302 is sufficient for their inner end faces to dock with the separation boss 103 of the winding 102 in Embodiment 1.

[0040] It should be noted that, such as Figure 2 When the guide vanes 302 are fully retracted, they fit tightly against the inner wall of the housing 101, without occupying the air passage space, thus ensuring natural cooling and ventilation under low load.

[0041] It should be noted that, such as Figure 6 Each guide vane 302 rotates synchronously, and its deflection angle is completely uniform, avoiding additional turbulence noise caused by local flow channel size deviation.

[0042] Example 5 It is understandable that in Embodiment 4, the guide vane 302 is a complete solid plate after unfolding, which directly obstructs the airflow in the air passage, thereby increasing local wind resistance. At the same time, when the airflow flows upward along the wall of the winding 102, it is easy to form a stable vertical wall-attached airflow layer, which will weaken the wall heat exchange efficiency if it persists. Furthermore, the solid blade is subjected to greater frontal impact force from the airflow, and the blade vibration amplitude is more intense under long-term operation, which can easily induce secondary structural noise.

[0043] like Figure 7 To solve the above problems, a number of guide vanes 302 are provided with a flow-guiding cavity 309 inside. The bottom of the flow-guiding cavity 309 extends to the bottom of the guide vane 302. A number of inclined diversion ports 310 are provided on both sides of the flow-guiding cavity 309.

[0044] It should be emphasized that the core improvement of this embodiment is: to add a bottom-through flow-guiding cavity 309 and an inclined flow-diverting port 310 to the guide vane 302, which converts part of the blocked airflow into a directional jet, thereby reducing the wind resistance of the guide vane 302 and actively disturbing the airflow layer on the wall, further improving the heat exchange efficiency.

[0045] Example 6 It is understandable that in Embodiment 5, after the addition of the flow-guiding cavity 309 and the flow-diverting port 310 to the guide vane 302, the structural rigidity decreases, the vibration amplitude when impacted by airflow increases significantly, and the vibration is directly transmitted to the housing 101 through the rigid connection of the flip push rod 303, inducing stronger structural noise and offsetting the noise reduction benefits brought by the airway optimization.

[0046] like Figure 7 and Figure 8 To address the aforementioned issues, a damping assembly for suppressing the vibration of the guide vane 302 is provided between the output end of the flip push rod 303 and the guide vane 302. The damping assembly includes a push block 306, one side of which is rotatably connected to the output end of the flip push rod 303. A receiving shaft 304 is rotatably connected to the end of the push block 306. A groove 305 is provided on the side of the guide vane 302 near the damping assembly. The receiving shaft 304 is slidably connected within the groove 305. A damping contact pad 307 is fixedly connected to the edge of the push block 306 near the guide vane 302. An outer cover plate 308 is fixedly connected to the middle of the housing 101. Several flip push rods 303 are fixedly installed on the inner wall of the outer cover plate 308.

[0047] It should be emphasized that the core improvement of this embodiment lies in the addition of a sliding groove 305 to the damping component based on embodiment five. This not only matches the swing stroke of the guide vane 302 through the sliding hinge structure without interfering with normal flipping adjustment, but also relies on the contact buffer between the damping contact pad 307 and the guide vane 302 to absorb and dissipate the vibration energy of the guide vane 302, thus solving the problem of the guide vane 302 itself being aggravated.

[0048] It should be noted that when the guide vane 302 is retracted, the shock absorption component is stored in the placement slot 301 along with the vane, and will not occupy the air passage cross section under natural cooling conditions.

[0049] The working principle of this device is as follows: In the natural cooling state, outside air enters the air inlet shroud 201 through the air inlet slot 204 on the edge of the air inlet frame 202. The cooling fan 206 rotates and pressurizes the airflow, which is then transported upward to the mounting frame 203. After the airflow is dispersed circumferentially through the flow equalization port on the edge of the mounting frame 203, it enters the annular air passage between the transformer winding 102 and the housing 101, flows axially upward and contacts the outer wall of the winding 102 to carry away heat. During the process, the partition boss 103 on the outer wall of the winding 102 forms a circumferential limit on the airflow, and the turbulence rib 104 disturbs the airflow near the wall.

[0050] When the external sensor detects that the transformer temperature is too high, it enters a forced air cooling state, the cooling fan 206 starts, and at the same time, the flip push rod 303 pushes the guide vane 302 to swing outward around the hinge axis, dividing the annular air passage into multiple independent flow channels; during the swinging process of the guide vane 302 driven by the flip push rod 303, the push block 306, which is rotatably connected to the output end of the flip push rod 303, has its receiving shaft 304 sliding along the slide groove 305 on the side of the guide vane 302 and rotating adaptively; when the guide vane 302... 2. When the device is flipped and unfolded, the shock-absorbing contact pad 307 on the edge of the push block 306 makes progressive contact with the guide vane 302, dissipating vibration energy through contact buffering. At the same time, the inclined guide port on the guide vane 302 guides part of the airflow toward the transformer winding 102, disturbing and disrupting the vertical airflow layer attached to the outer wall of the winding 102, thereby improving the heat dissipation efficiency of the winding 102. The airflow that has completed heat exchange continues to rise along the annular air passage and is finally discharged from the device through the exhaust port 211 on the edge of the top cover 210 of the housing 101. Meanwhile, the vibration generated by the core and winding 102 is partially eliminated by the bottom shock-absorbing connector and then transmitted to the mounting bracket 203. Further impact vibration is eliminated by the buffer pad 207 between the mounting bracket 203 and the housing 101.

[0051] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed application.

Claims

1. A dry-type transformer for a computing center, characterized in that, The transformer includes an iron core and a transformer winding (102) wound around the outside of the iron core. The outer wall of the transformer winding (102) is provided with a heat dissipation and noise reduction device. The outer wall of the transformer winding (102) is integrally formed with a number of partition bosses (103). A number of axially arranged turbulence ribs (104) are provided between the partition bosses (103).

2. A dry-type transformer for a computing center as described in claim 1, characterized in that, An annular air passage is provided between the transformer winding (102) and the heat dissipation and noise reduction device, and the radial height of the partition boss (103) is half the radial width of the annular air passage.

3. A dry-type transformer for a computing center as described in claim 1, characterized in that, The transformer winding (102) includes a low-voltage winding (102) and a high-voltage winding (102). The low-voltage winding (102) is wound with copper foil axial gradient transposition, and the transposition pitch gradually decreases from top to bottom along the axial direction of the transformer winding (102). The high-voltage winding (102) is wound with self-adhesive transposition wire. A semi-conductive shielding layer is provided on the outer side of the low-voltage winding (102) and the inner side of the high-voltage winding (102).

4. A dry-type transformer for a computing center as described in claim 3, characterized in that, The outer surface of the semiconductive shielding layer is roughened by a textured surface.

5. A heat dissipation and noise reduction device for a dry-type transformer used in a computing center, characterized in that, The device includes a housing (101) which covers the outside of the transformer winding (102). An air supply and equalization mechanism for supplying airflow is provided below the housing (101). The air supply and equalization mechanism includes a mounting frame (203). Several equalization ports are provided along the edge of the mounting frame (203). An air supply assembly is provided below the mounting frame (203). A cover (210) is provided on the top of the housing (101). Several exhaust ports (211) are provided along the edge of the cover (210). Several equalization ports are provided in correspondence with several exhaust ports (211). A shock-absorbing connector is provided between the top of the mounting frame (203) and the bottom of the transformer winding (102). A buffer pad (207) is provided between the edge of the mounting frame (203) and the bottom of the housing (101).

6. The heat dissipation and noise reduction device for a dry-type transformer used in a computing center as described in claim 5, characterized in that, The inner wall of the housing (101) is provided with a plurality of placement slots (301), and the inner wall of each of the plurality of placement slots (301) is rotatably connected with a guide vane (302). The middle of each of the plurality of placement slots (301) is provided with a flip push rod (303) for driving the guide vane (302) to rotate and shift.

7. The heat dissipation and noise reduction device for a dry-type transformer used in a computing center as described in claim 6, characterized in that, Each of the several guide vanes (302) has a drainage cavity (309) inside, the bottom of the drainage cavity (309) extends to the bottom of the guide vane (302), and several inclined diversion ports (310) are provided on both sides of the drainage cavity (309).

8. The heat dissipation and noise reduction device for a dry-type transformer used in a computing center as described in claim 6, characterized in that, A damping component for suppressing the vibration of the guide vane (302) is provided between the output end of the flip push rod (303) and the guide vane (302). The damping component includes a push block (306). One side of the push block (306) is rotatably connected to the output end of the flip push rod (303). A receiving shaft (304) is rotatably connected to the end of the push block (306). A groove (305) is provided on the side of the guide vane (302) near the damping component. The receiving shaft (304) is slidably connected in the groove (305). A damping contact pad (307) is fixedly connected to the edge of the push block (306) near the guide vane (302).

9. The heat dissipation and noise reduction device for a dry-type transformer used in a computing center as described in claim 8, characterized in that, The air supply assembly includes an air inlet shroud (201), an air inlet frame (202) is fixedly connected to the bottom of the air inlet shroud (201), a plurality of air inlet slots (204) are provided along the edge of the air inlet frame (202), the lower half of the inner wall of the air inlet slot (204) is set as an open shape, the upper half of the air inlet slot (204) is provided with a vertical flow channel, and a cooling fan (206) is fixedly installed in the middle of the air inlet frame (202).

10. The heat dissipation and noise reduction device for a dry-type transformer used in a computing center as described in claim 5, characterized in that, The shock-absorbing connector includes two parallel support plates (205) arranged vertically. A plurality of buffer sleeves (208) are provided between the two support plates (205). A buffer rod (209) is slidably connected to the inner wall of each buffer sleeve (208). A shock-absorbing spring is fixedly connected between the bottom of the buffer rod (209) and the bottom of the inner wall of the buffer sleeve (208).

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