A noise reduction transformer

Abstract

This application discloses a noise-reducing transformer, relating to the field of transformer technology, including a housing and cabinet door, and a heat dissipation assembly. The heat dissipation assembly includes a baffle plate, a heat dissipation section, and an air inlet section. The baffle plate is fixed to the top of the housing, and a heat dissipation groove is formed on the baffle plate. An opening is formed at the bottom of the heat dissipation groove, communicating with the interior of the housing. A ventilation plate is fixed in the opening. The heat dissipation section includes a cooling fan and a cleaning head. The cooling fan is fixed in the heat dissipation groove and is located above the ventilation plate. The cooling fan is driven by a motor to rotate. When the cooling fan rotates to dissipate heat, the cleaning head can contact the ventilation plate. The cooling fan includes four blades, and a cleaning head is fixed on each blade near the ventilation plate. This design shortens the contact path between external cold air and internal hot air, accelerates the contact speed between internal hot air and external cold air, and improves heat dissipation efficiency.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, and more particularly to a noise-reducing transformer. Background Technology

[0002] A transformer is an important piece of equipment for transmitting electrical energy. It changes the voltage by stepping up or stepping down the voltage to meet the voltage requirements of different electrical devices. Since transformers generate low-frequency noise during operation, this noise can easily affect residents in the community. Box-type transformers are often used in residential communities. Installing the transformer and switchgear in a box can reduce the noise pollution generated by the transformer equipment during operation.

[0003] Box-type transformers in residential areas are usually installed outdoors. The transformers generate a lot of heat when they are running. When used in cities with low average annual temperatures, the temperature difference between the inside and outside of the box-type transformer is large. The hot air inside the box-type transformer cannot be dissipated in time, which will produce water vapor. The water vapor condenses into small water droplets and adheres to the electrical equipment inside the box-type transformer, which can easily damage the electrical equipment. Usually, heat dissipation treatment is carried out at the bottom of the box-type transformer. Since hot air moves upward, most of the heat accumulates at the top of the box-type transformer. Therefore, the contact path between the cold air at the bottom of the box-type transformer and the hot air inside the box-type transformer is long, resulting in poor heat dissipation. Summary of the Invention

[0004] This application provides a noise-reducing transformer, which solves the problem in the prior art where most of the heat is accumulated at the top of the box-type transformer, resulting in a long contact path between the cold air at the bottom of the box-type transformer and the hot air inside the transformer, leading to poor heat dissipation.

[0005] This application provides a noise reduction transformer, including a housing and a cabinet door, and also includes a heat dissipation component;

[0006] The heat dissipation assembly includes a baffle plate, a heat dissipation section, and an air intake section;

[0007] The shield is fixed to the top of the box, and the shield has a heat dissipation groove. The bottom of the heat dissipation groove has an opening that communicates with the inside of the box. A ventilation plate is fixed in the opening.

[0008] The heat dissipation unit includes a cooling fan and a cleaning head;

[0009] The cooling fan is fixed in the heat dissipation slot and is located above the ventilation plate. The cooling fan is driven by a motor to rotate. When the cooling fan rotates to dissipate heat, the cleaning head can contact the ventilation plate.

[0010] The cooling fan includes four blades, and each blade has a cleaning head fixed near the ventilation plate.

[0011] Each of the aforementioned fan blades is a hollow plate, and the cleaning head is a hollow cylinder with openings at both ends. One end of the cleaning head extends into the fan blade, and a brush is fixed to the remaining end of the cleaning head.

[0012] The air intake is used to draw air from the fan blades, which can accelerate the flow of hot air inside the box.

[0013] Furthermore, the air intake includes a vent pipe and a guide pipe;

[0014] The vent pipe is a cross-shaped pipe body, with the air inlet end of the vent pipe rotatably connected to the air guide pipe, and the air guide pipe coinciding with the axis of the cooling fan.

[0015] The vent pipe has four outlets, each with a branch pipe fixed to it, and the outlet of one branch pipe extends into a fan blade.

[0016] Furthermore, each of the fan blades has an opening on one side, and a gas bladder is fixed inside each fan blade. The outlet end of a branch pipe extends into a gas bladder, and the gas bladder is inflated by inflating it through the branch pipe.

[0017] One end of the cleaning head extends into the gas bladder, and a valve is fixed on the cleaning head.

[0018] Furthermore, after the gas bladder is inflated, it can come into contact with the adjacent fan blades.

[0019] Furthermore, each of the fan blades has several air inlets fixed at even intervals near the ventilation plate;

[0020] The air intake cylinder is a hollow cylinder with openings at both ends, and one end of it extends into a gas soft bag. Each air intake cylinder is fixed with a valve.

[0021] Each of the air intake cylinders has a cleaning soft bag fixed to its empty end, and a cleaning part is fixed to the bottom of the cleaning soft bag, which can contact the surface of the ventilation plate.

[0022] Furthermore, by repeatedly inflating and deflating the gas bag through the air duct, the cleaning bag can be repeatedly expanded and contracted, allowing the cleaning part to be inserted into the through hole of the ventilation plate.

[0023] Furthermore, the cleaning part is a rubber bladder filled with gravity powder, and a cleaning cloth is fixed to the outside of the cleaning part.

[0024] Furthermore, there are multiple heat dissipation parts and multiple ventilation plates, with one heat dissipation part located above one ventilation plate;

[0025] The air intake section also includes a main pipe, the air intake end of which is fixed to the air pump, and the main pipe has multiple air outlet ends, with one air outlet end of the main pipe fixed to the air intake end of an air guide pipe.

[0026] A sound insulation board is fixed inside the heat dissipation groove. The sound insulation board is a honeycomb-shaped board and is located above the heat dissipation part.

[0027] Furthermore, it also includes protective components;

[0028] The protective assembly includes a protective plate and a collection tank;

[0029] The protective plate is a plate with an isosceles trapezoidal cross section, and it is fixed to the shield plate by a bracket. The protective plate has a through groove, and a fall-prevention soft pad is fixed in the through groove of the protective plate. The fall-prevention soft pad is convenient to provide cushioning for objects falling from a height.

[0030] There are two collection troughs. One collection trough is fixed to one side of the protective plate. The collection trough is used to collect rainwater. A guide pipe is fixed at the bottom of the collection trough.

[0031] Furthermore, each of the collection slots is fixed with a fixing strip near the protective plate, and the protective plate has a fixing slot that cooperates with the fixing strip. The collection slot and the protective plate are detachably connected.

[0032] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0033] The cooling components, powered by a rotating cooling fan, accelerate the flow of hot air within the enclosure. Simultaneously, the air intake draws air from the fan blades, and the cleaning head creates turbulent airflow around the ventilation plate, increasing the contact area between the hot air inside the enclosure and the cool air outside. Located at the top of the enclosure, the cooling components shorten the contact path between the hot air inside and the cool air inside, further accelerating the contact and improving cooling efficiency. Attached Figure Description

[0034] Figure 1 This is a top-view three-dimensional structural diagram of the noise reduction transformer of the present invention;

[0035] Figure 2 This is a bottom-view three-dimensional structural diagram of the noise reduction transformer of the present invention;

[0036] Figure 3 This is a top-view three-dimensional structural diagram of the shielding plate of the noise reduction transformer of the present invention;

[0037] Figure 4 This is a top-view three-dimensional structural diagram of the sound insulation plate of the noise reduction transformer of the present invention;

[0038] Figure 5 This is a three-dimensional structural diagram of the cooling fan of the noise reduction transformer of the present invention;

[0039] Figure 6This is a top-view three-dimensional structural diagram showing the positional relationship between the cooling fan and the ventilation plate of the noise reduction transformer of the present invention.

[0040] Figure 7 This is a bottom-view three-dimensional structural diagram showing the positional relationship between the cooling fan and the ventilation plate of the noise reduction transformer of the present invention.

[0041] Figure 8 The noise reduction transformer of this invention Figure 7 A magnified view of the structure at point A in the middle;

[0042] Figure 9 This is a three-dimensional structural diagram of the cleaning head of the noise reduction transformer of the present invention, viewed from below.

[0043] Figure 10 This is a three-dimensional structural schematic diagram showing the positional relationship between the gas bladder and the fan blades of the noise reduction transformer of the present invention;

[0044] Figure 11 This is a top view cross-sectional structural diagram of the fan blades of the noise reduction transformer of the present invention;

[0045] Figure 12 This is a schematic diagram of the state structure of the noise reduction transformer of the present invention when the gas bladder expands and comes into contact with the adjacent fan blades.

[0046] Figure 13 This is a bottom-view three-dimensional structural diagram of the air inlet cylinder of the noise reduction transformer of the present invention;

[0047] Figure 14 This is a front view schematic diagram of the air inlet structure of the noise reduction transformer of the present invention;

[0048] Figure 15 This is a schematic diagram of the structure of the noise reduction transformer of the present invention after the cleaning soft bladder has expanded.

[0049] Figure 16 This is a three-dimensional structural diagram of the fan blades and gas bladder of the noise reduction transformer of the present invention.

[0050] Figure 17 This is a top-view three-dimensional structural diagram of the main pipe of the noise reduction transformer of the present invention;

[0051] Figure 18 This is a top-view three-dimensional structural diagram of the protective plate of the noise reduction transformer of the present invention;

[0052] Figure 19 This is a side-view three-dimensional structural diagram of the collection slot of the noise reduction transformer of the present invention.

[0053] In the diagram: 100, cabinet body; 110, cabinet door; 111, sound insulation cotton; 200, heat dissipation assembly; 210, baffle plate; 211, heat dissipation groove; 2111, ventilation plate; 212, sound insulation plate; 220, heat dissipation section; 221, cooling fan; 222, fan blade; 2221, gas soft bag; 223, cleaning head; 224, air inlet; 2241, cleaning soft bag; 2242, cleaning section; 230, air inlet; 231, vent pipe; 232, branch pipe; 233, air guide pipe; 234, main pipe; 300, protective assembly; 310, protective plate; 311, anti-fall pad; 320, collection groove; 321, fixing strip; 322, guide pipe. Detailed Implementation

[0054] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0055] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0057] like Figures 1 to 17 As shown, this application proposes a noise reduction transformer, including a housing 100 and a cabinet door 110. Sound insulation cotton 111 is fixed on the inner side of the housing 100 and on the cabinet door 110 near the inside of the housing 100. The sound insulation cotton 111 reduces noise by absorbing the low-frequency sound waves of the transformer, which can reduce the noise caused by the operation of the transformer. It also includes a heat dissipation component 200, which is used to dissipate heat from the electrical equipment inside the housing 100.

[0058] The heat dissipation assembly 200 includes a baffle plate 210, a heat dissipation section 220, and an air intake section 230;

[0059] The shield 210 is fixed to the top of the box 100. The shield 210 has a heat dissipation groove 211, which facilitates heat dissipation. The bottom of the heat dissipation groove 211 has an opening that communicates with the inside of the box 100. A ventilation plate 2111 is fixed in the opening. The ventilation plate 2111 has through holes and is used to ventilate the inside of the box 100. At the same time, it can also prevent insects and rodents.

[0060] The heat dissipation unit 220 includes a cooling fan 221 and a cleaning head 223;

[0061] The cooling fan 221 is fixed in the heat dissipation slot 211 and is located above the ventilation plate 2111. The cooling fan 221 is driven by a motor to rotate. When the cooling fan 221 rotates to dissipate heat, the cleaning head 223 can contact the ventilation plate 2111 to clean the dust blocking the through holes of the ventilation plate 2111 and ensure the normal air circulation inside the box 100.

[0062] The cooling fan 221 includes four fan blades 222, and each fan blade 222 is fixed with a cleaning head 223 near the ventilation plate 2111.

[0063] Each of the fan blades 222 is a hollow plate, and the cleaning head 223 is a hollow cylinder with openings at both ends. One end of the cleaning head 223 extends into the fan blade 222. The connection between the cleaning head 223 and the fan blade 222 is sealed and fixed. The cleaning head 223 communicates with the inside of the fan blade 222. A brush is fixed to the empty end of the cleaning head 223. The brush can extend into the through hole of the ventilation plate 2111 to facilitate cleaning the dust in the through hole.

[0064] The air intake 230 is used to draw air from the fan blades 222, which can accelerate the flow of hot air inside the housing 100. With the rotation of the cooling fan 221, it can drive the air around the ventilation plate 2111 to move in turbulent motion, increasing the contact area between the hot air inside the housing 100 and the cold air outside.

[0065] It is worth noting that by drawing air from the fan blades 222 through the air intake 230, the cleaning head 223 can drive the air around the ventilation plate 2111 to move in turbulent motion, increasing the contact area between the hot air inside the housing 100 and the cold air outside.

[0066] Specifically, such as Figure 3 Figure 17 As shown, the air intake 230 includes an air vent 231 and an air guide 233;

[0067] The vent pipe 231 is a cross-shaped pipe body. The air inlet end of the vent pipe 231 is rotatably connected to the air guide pipe 233. The air guide pipe 233 coincides with the axis of the cooling fan 221. The rotatable connection between the vent pipe 231 and the air guide pipe 233 is sealed. Air is introduced into the air guide pipe 233 by an air pump.

[0068] The vent pipe 231 has four air outlets, and each air outlet has a fixed branch pipe 232. The air outlet of one branch pipe 232 extends into a fan blade 222, and the connection between each branch pipe 232 and the fan blade 222 is sealed and fixed.

[0069] It is worth noting that when the fan blade 222 rotates, the vent pipe 231 and the branch pipe 232 move synchronously with the fan blade 222, and the position of the air guide pipe 233 remains unchanged, making it less likely for the pipes to become entangled. Air is introduced into the air guide pipe 233 by the air pump, so that the gas enters the vent pipe 231, and then is distributed to the four branch pipes 232 through the vent pipe 231 to draw air out of the fan blade 222.

[0070] In the above embodiments, when dissipating heat inside the housing 100, the rotating cooling fan 221 accelerates the flow of hot air inside the housing 100 and simultaneously introduces cool air from the outside into the housing 100 for ventilation. An air pump draws air into the air duct 233, which then enters the ventilation pipe 231. The air is then distributed through the ventilation pipe 231 to four branch pipes 232, drawing air into the fan blades 222. The cleaning head 223 causes turbulent airflow around the ventilation plate 2111, increasing the contact area between the hot air inside the housing 100 and the cool air outside. Simultaneously, the brush at the bottom of the cleaning head 223 cleans dust from the ventilation plate 2111, preventing dust blockage of the vents. The heat dissipation assembly 200, located at the top of the housing 100, shortens the contact path between the cool air outside and the hot air inside the housing 100, accelerating the contact speed and improving heat dissipation efficiency.

[0071] In some embodiments of the present invention, such as Figures 10 to 12 As shown, each fan blade 222 has an opening on one side, and each fan blade 222 has a gas soft bag 2221 fixed inside. The outlet end of a branch pipe 232 extends into a gas soft bag 2221. The connection between the branch pipe 232 and the gas soft bag 2221 is sealed and fixed. The gas soft bag 2221 is inflated by inflating the gas soft bag 2221 through the branch pipe 232.

[0072] One end of the cleaning head 223 extends into the gas soft bag 2221, and a valve is fixed on the cleaning head 223.

[0073] It is worth noting that when the gas bladder 2221 is inflated, the valve on the cleaning head 223 is closed, and the gas will not leak from the cleaning head 223 when the gas bladder 2221 is inflated.

[0074] Specifically, such as Figure 12 As shown, after the gas soft bag 2221 is inflated, the gas soft bag 2221 can come into contact with the adjacent fan blade 222.

[0075] In the above embodiment, when encountering severe weather such as strong winds or sandstorms, dust and impurities can easily enter the housing 100 through the ventilation plate 2111. The air pump inflates the air duct 233, and the gas enters the ventilation pipe 231 and then inflates the gas soft bag 2221 through the branch pipe 232, causing the gas soft bag 2221 to expand. After each gas soft bag 2221 expands, it abuts against an adjacent fan blade 222, filling the gap between the fan blades 222, which can prevent external dust or impurities from entering the housing 100. After the severe weather, the gas soft bag 2221 is deflated to reset the gas soft bag 2221.

[0076] When the heat dissipation inside the housing 100 is processed, the valve on the cleaning head 223 is in the open state, and air is drawn into the gas soft bag 2221 through the air guide pipe 233, so that negative pressure gas is generated at the cleaning head 223, which disrupts the gas flow trajectory around the ventilation plate 2111. At this time, the gas soft bag 2221 remains unchanged in its initial state, does not affect the gas flow inside the cleaning head 223, and increases the functionality of use.

[0077] In some embodiments of the present invention, such as Figures 13 to 16 As shown, each fan blade 222 has several air inlets 224 fixed at even intervals near the ventilation plate 2111;

[0078] The air intake cylinder 224 is a hollow cylinder with openings at both ends, and one end of it extends into the gas soft bag 2221. Each air intake cylinder 224 is fixed with a valve.

[0079] Each air intake 224 has a cleaning soft bag 2241 fixed at its empty end. The bottom of the cleaning soft bag 2241 has a cleaning part 2242 fixed thereon. The cleaning part 2242 can contact the surface of the ventilation plate 2111. In this way, when the fan blade 222 rotates, the cleaning part 2242 can also clean the ventilation plate 2111.

[0080] It is worth noting that when the valve on the air intake cylinder 224 is open, the valve on the cleaning head 223 is closed.

[0081] Specifically, such as Figure 15As shown, the gas soft bag 2221 is repeatedly inflated and deflated through the air guide tube 233, causing the cleaning soft bag 2241 to repeatedly expand and contract. This allows the cleaning part 2242 to extend into the through hole of the ventilation plate 2111. The expanded cleaning soft bag 2241 drives the cleaning part 2242 into the through hole of the ventilation plate 2111, which can knock away the dust and impurities in the through hole of the ventilation plate 2111, thus better cleaning the through hole of the ventilation plate 2111.

[0082] It is worth noting that by repeatedly inflating and deflating the gas soft bag 2221 through the air guide tube 233, the valve on the air inlet cylinder 224 is opened, and the gas can enter the cleaning soft bag 2241, causing the cleaning soft bag 2241 to repeatedly expand and contract.

[0083] Specifically, such as Figure 15 As shown, the cleaning part 2242 is a rubber bladder filled with gravity powder. A cleaning cloth is fixed to the outside of the cleaning part 2242, and the cleaning cloth can contact the inner wall surface of the through hole of the ventilation plate 2111.

[0084] It is worth noting that the cleaning section 2242 is filled with gravity powder. As the gas soft bag 2221 expands and contracts, it can drive the cleaning section 2242 to expand and contract synchronously, so that the cleaning section 2242 extends into the through hole of the ventilation plate 2111. Under the impact of the cleaning section 2242, the contact force with the through hole of the ventilation plate 2111 can be increased, thus cleaning the ventilation plate 2111 better.

[0085] In the above embodiment, when cleaning the through holes of the ventilation plate 2111, air is charged and depressed in the ventilation pipe 231 through the air guide pipe 233, and then charged and depressed in each gas soft bag 2221 through the branch pipe 232. At this time, the valve on the air inlet cylinder 224 is in the open state, and the valve on the cleaning head 223 is in the closed state. The gas in the gas soft bag 2221 enters the cleaning soft bag 2241, causing the cleaning soft bag 2241 to repeatedly expand and contract. When the cleaning soft bag 2241 expands, it can drive the cleaning part 2242 to extend into the through holes of the ventilation plate 2111, and the dust in the through holes of the ventilation plate 2111 is removed by the cleaning cloth. Dust and impurities are removed, while the gas soft bag 2221 repeatedly expands and contracts, constantly impacting the adjacent fan blades 222, causing the fan blades 222 to vibrate. This increases the contact force between the cleaning part 2242 and the ventilation plate 2111, improving the cleaning efficiency of the ventilation plate 2111. After the cooling fan 221 rotates, it pauses for a period of time. At this time, the cleaning part 2242 is located above the through hole of the ventilation plate 2111. The above actions are repeated, and the cleaning part 2242 is inserted into the through hole of the ventilation plate 2111, which can clean all the through holes of the ventilation plate 2111, improving the ventilation and heat dissipation efficiency inside the housing 100.

[0086] In some embodiments of the present invention, such as Figures 2 to 17As shown, there are multiple heat dissipation parts 220 and multiple ventilation plates 2111, with one heat dissipation part 220 located above one ventilation plate 2111;

[0087] The air intake section 230 also includes a main pipe 234, the air intake end of the main pipe 234 is fixed to the air pump, and the main pipe 234 has multiple air outlet ends, with the air outlet end of one main pipe 234 fixed to the air intake end of one air guide pipe 233.

[0088] A sound insulation board 212 is fixed inside the heat dissipation groove 211. The sound insulation board 212 is a honeycomb plate that can play a role in sound insulation. The plate has multiple evenly spaced holes. The sound insulation board 212 is located above the heat dissipation part 220.

[0089] In the above embodiment, the main pipe 234 can supply air to multiple air ducts 233 respectively, reducing the driving source and saving operating costs. At the same time, the sound insulation plate 212 can provide sound insulation without affecting the normal heat dissipation of the heat dissipation unit 220.

[0090] In some embodiments of this application, such as Figures 1 to 19 As shown, it also includes a protective component 300, which is used to protect the equipment and prevent damage to the equipment from falling objects from heights;

[0091] The protective component 300 includes a protective plate 310 and a collection tank 320;

[0092] The protective plate 310 is a plate with an isosceles trapezoidal cross section, and it is fixed to the shield plate 210 by a bracket. The protective plate 310 has a through groove, and a fall-prevention soft pad 311 is fixed in the through groove of the protective plate 310. The fall-prevention soft pad 311 is convenient to provide cushioning for objects falling from a height. The fall-prevention soft pad 311 can provide a certain cushioning effect for objects falling from a height and reduce the impact force of objects falling from a height.

[0093] There are two collection troughs 320. One collection trough 320 is fixed to one side of the protective plate 310. The collection trough 320 is used to collect rainwater. A guide pipe 322 is fixed at the bottom of the collection trough 320. The empty end of the guide pipe 322 can extend into the water collection tank to collect rainwater in the water collection tank, which is convenient for irrigating plants in the community environment, reducing the use of water resources and making reasonable use of natural resources.

[0094] Specifically, such as Figure 18 and Figure 19As shown, each of the collection slots 320 is fixed with a fixing strip 321 near the protective plate 310. The protective plate 310 has a fixing groove that works with the fixing strip 321. The collection slot 320 and the protective plate 310 are detachably connected. The fixing strip 321 can slide and be embedded in the fixing groove. The collection slot 320 is positioned on the protective plate 310 by friction, which is convenient for disassembly and maintenance and has low cost.

[0095] In the above embodiments, the protective component 300 ensures that objects falling from a height land on the anti-fall pad 311, which provides cushioning to the falling object and reduces the damage caused by the falling object to the equipment, thus improving safety. The collection trough 320 collects rainwater and sends it to the water collection tank for recycling and reuse, making rational use of natural resources. This system effectively protects against falling objects and promotes the rational use of natural resources.

[0096] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A noise-reducing transformer, comprising a housing (100) and a cabinet door (110), characterized in that, It also includes a heat dissipation component (200); The heat dissipation assembly (200) includes a baffle plate (210), a heat dissipation section (220), and an air intake section (230). The shield (210) is fixed to the top of the box (100). The shield (210) has a heat dissipation groove (211). The bottom of the heat dissipation groove (211) has an opening that communicates with the inside of the box (100). A ventilation plate (2111) is fixed in the opening. The heat dissipation unit (220) includes a cooling fan (221) and a cleaning head (223). The cooling fan (221) is fixed in the heat dissipation slot (211). The cooling fan (221) is located above the ventilation plate (2111). The cooling fan (221) is driven by a motor to rotate. When the cooling fan (221) rotates to dissipate heat, the cleaning head (223) can contact the ventilation plate (2111). The cooling fan (221) includes four fan blades (222), and each fan blade (222) has a cleaning head (223) fixed near the ventilation plate (2111). Each of the fan blades (222) is a hollow plate, and the cleaning head (223) is a hollow cylinder with openings at both ends. One end of the cleaning head (223) extends into the fan blade (222), and a brush is fixed to the remaining end of the cleaning head (223). The air intake (230) is used to draw air from the fan blades (222), which can accelerate the flow of hot air inside the housing (100); Each of the fan blades (222) has an opening on one side, and each fan blade (222) has a gas soft bag (2221) fixed inside. The outlet end of a branch pipe (232) extends into a gas soft bag (2221), and the gas soft bag (2221) is inflated by the branch pipe (232). One end of the cleaning head (223) extends into the gas soft bag (2221), and a valve is fixed on the cleaning head (223); Each of the fan blades (222) has several air inlets (224) fixed at even intervals near the ventilation plate (2111); The air intake cylinder (224) is a hollow cylinder with openings at both ends, and one end of it extends into the gas soft bag (2221). Each air intake cylinder (224) is fixed with a valve. Each of the air intake cylinders (224) has a cleaning soft bag (2241) fixed at its empty end. A cleaning part (2242) is fixed at the bottom of the cleaning soft bag (2241) and the cleaning part (2242) can contact the surface of the ventilation plate (2111).

2. The noise reduction transformer as described in claim 1, characterized in that, The air intake (230) includes an air inlet pipe (231) and an air guide pipe (233). The vent pipe (231) is a cross-shaped pipe body. The air inlet end of the vent pipe (231) is rotatably connected to the air guide pipe (233). The air guide pipe (233) coincides with the axis of the cooling fan (221). The vent pipe (231) has four outlets, and each outlet has a fixed branch pipe (232). The outlet of one branch pipe (232) extends into a fan blade (222).

3. The noise reduction transformer as described in claim 2, characterized in that, After the gas bladder (2221) is inflated, it can press against the adjacent fan blade (222).

4. The noise reduction transformer as described in claim 2, characterized in that, By repeatedly inflating and deflating the gas soft bag (2221) through the air duct (233), the cleaning soft bag (2241) is repeatedly expanded and contracted, allowing the cleaning part (2242) to be inserted into the through hole of the ventilation plate (2111).

5. The noise reduction transformer as described in claim 1, characterized in that, The cleaning part (2242) is a rubber bladder filled with gravity powder, and a cleaning cloth is fixed to the outside of the cleaning part (2242).

6. The noise reduction transformer as described in claim 2, characterized in that, There are multiple heat dissipation parts (220) and multiple ventilation plates (2111), with one heat dissipation part (220) located above one ventilation plate (2111); The air intake (230) also includes a main pipe (234), the air intake end of the main pipe (234) is fixed to the air pump, and the main pipe (234) has multiple air outlet ends, with the air outlet end of one main pipe (234) fixed to the air intake end of one air guide pipe (233). A sound insulation board (212) is fixed inside the heat dissipation groove (211). The sound insulation board (212) is a honeycomb plate and is located above the heat dissipation part (220).

7. The noise reduction transformer as described in claim 1, characterized in that, It also includes protective components (300); The protective assembly (300) includes a protective plate (310) and a collection tank (320); The protective plate (310) is a plate with an isosceles trapezoidal cross section and is fixed to the shield plate (210) by a bracket. The protective plate (310) has a through groove and a fall-prevention pad (311) is fixed in the through groove of the protective plate (310). The fall-prevention pad (311) is convenient to provide cushioning for objects falling from height. There are two collection troughs (320). One collection trough (320) is fixed to one side of the protective plate (310). The collection trough (320) is used to collect rainwater. A guide pipe (322) is fixed at the bottom of the collection trough (320).

8. The noise reduction transformer as described in claim 7, characterized in that, Each of the collection slots (320) is fixed with a fixing strip (321) near the protective plate (310). The protective plate (310) has a fixing slot that works with the fixing strip (321). The collection slot (320) and the protective plate (310) are detachably connected.

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