Power electrical transformer with dustproof function

Abstract

This application discloses a power transformer with dustproof function, belonging to the field of power electrical equipment technology. It includes a housing, a cover fixedly installed on the top of the housing, a canopy fixedly installed on the top of the cover, a transformer assembled inside the housing, an elastic airbag fixedly installed at the bottom of the transformer, telescopic rods fixedly installed around the bottom of the transformer, a base fixedly installed at the bottom of the elastic airbag, and ventilation ducts fixedly installed through both sides of the housing. A filter screen is installed on the left side of the ventilation duct. This application uses an air storage tank to store gas from the elastic airbag, which is then discharged through an exhaust pipe. The discharged gas pushes a rack rod upwards, causing a hollow gear to rotate, which in turn causes cleaning rods one and two on the hollow gear to rotate synchronously, cleaning the heat dissipation ducts and the filter screen, effectively preventing dust blockage from affecting the heat dissipation effect.

Description

Technical Field

[0001] This application relates to the field of power electrical equipment technology, and more specifically, to a power electrical transformer with dustproof function. Background Technology

[0002] With the maturity of my country's power technology and the rapid development of various power equipment, transformers are among the most common power devices. Their operating status directly determines the safety, stability, and reliability of the power system. A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil, and iron core. Its main functions include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization. However, existing energy-saving transformers still have certain problems in use. Firstly, transformers are generally installed outdoors, such as at construction sites.

[0003] Currently, most traditional power transformers are installed outdoors, and some dust can enter the equipment through the cooling pipes. Although filters can block some dust, a small amount still enters the equipment, causing blockage of the cooling pipes and thus reducing the cooling effect. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a power transformer with dustproof function, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this application provides a dustproof power transformer, including a housing, a cover fixedly installed on the top of the housing, a baffle fixedly installed on the top of the cover, a transformer assembled inside the housing, an elastic airbag fixedly installed at the bottom of the transformer, telescopic rods fixedly installed around the bottom of the transformer, a base fixedly installed at the bottom of the elastic airbag, ventilation ducts fixedly installed through both sides of the housing, a filter screen assembled on the left side of the ventilation duct, a rotating cleaning device assembled on the left side of the elastic airbag, the rotating cleaning device including an air storage box fixedly installed on both sides of the inner wall of the housing, a hollow gear rotatably assembled on the right side of the ventilation duct, a connecting pipe penetrating the right side of the air storage box, an exhaust pipe assembled on the top of the air storage box, an air valve assembled at the bottom of the exhaust pipe, a sliding block slidably connected to the inner side of the exhaust pipe, a spring fixedly installed at the bottom of the sliding block, a power rod fixedly installed on the top of the sliding block, a rack fixedly installed on the top of the power rod, a cleaning rod fixedly installed on the left side of the hollow gear, and a cleaning rod two fixedly installed on the left side of the cleaning rod one.

[0006] Preferably, the connecting tube is connected to the elastic airbag, and the rack and pinion meshes with the hollow gear.

[0007] Preferably, the second cleaning rod matches the inner wall of the ventilation duct, and both the first and second cleaning rods are provided with cleaning brushes on their surfaces.

[0008] Preferably, the sliding block is in sliding sealing fit with the inner wall of the exhaust pipe, and an exhaust hole is provided on the wall of the exhaust pipe.

[0009] Preferably, the top of the rack is equipped with a sliding cleaning device for sliding up and down to clean the inner wall of the housing.

[0010] Preferably, the sliding cleaning device includes a fixed rod slidably connected to the inner wall of the housing, a cleaning rod three is connected through the middle of the fixed rod, sliding rods are fixedly connected to both sides of the cleaning rod three, a movable plate is fixedly connected to the bottom of the fixed rod, and a spring two is fixedly installed on the top of the movable plate.

[0011] Preferably, the cleaning rod is provided with a cleaning brush on one side of the three sides facing the inside of the outer casing, and the fixing rod is located directly above the rack rod.

[0012] Preferably, a cooling device for reducing the temperature of the transformer is installed on the left side of the transformer.

[0013] Preferably, the cooling device includes a coolant tank fixedly installed on the inner wall of the outer casing, a fixed base fixedly installed inside the outer casing, a switch fixedly installed on the top of the fixed base, a bimetallic strip fixedly installed on the top of the coolant tank, a circulation pump mounted on the right side of the top of the coolant tank, a circulation water pipe connected to the output end of the circulation pump, a dustproof frame fixedly installed on the left side of the surface of the coolant tank, fan blades mounted on the outer side of the dustproof frame, a semiconductor cooler mounted on the inner side of the dustproof frame, and heat dissipation fins fixedly installed on the outer side of the semiconductor cooler.

[0014] Preferably, the cooling end of the semiconductor cooler is located inside the coolant tank, and the heat dissipation end of the semiconductor cooler is located on the right side of the heat dissipation fins. The bimetallic sheet is composed of a first metal layer and a second metal layer stacked together. The coefficient of thermal expansion of the first metal layer is greater than that of the second metal layer, and the first metal layer is located above the second metal layer.

[0015] The advantages of this application are: (1) This application stores the gas in the elastic airbag by setting up an air storage box, and then discharges it through the exhaust pipe; the discharged gas pushes the rack rod to move upward, drives the hollow gear to rotate, and then makes the cleaning rod one and cleaning rod two on the hollow gear rotate synchronously to rotate and clean the heat dissipation pipe and filter screen, effectively avoiding dust blockage and affecting the heat dissipation effect.

[0016] (2) By setting a fixed rod, when the rack moves upward, it can drive the fixed rod to move upward synchronously, thereby driving the cleaning rod three to move upward; after the rack is reset, the spring two on the moving plate will drive the cleaning rod three to reset downward, and clean the dust on the inner wall of the outer shell again, preventing the dust from damaging the outer shell and other equipment.

[0017] (3) By setting up a coolant tank, when the transformer heats up, the bimetallic strip will press down the switch to start the equipment, and the circulation pump will run. The coolant will circulate through the circulating water pipe to absorb the heat generated by the transformer to achieve cooling. At the same time, the semiconductor cooler cools the coolant, and the heat dissipation fins assist in heat dissipation, effectively preventing the transformer from being damaged due to excessive temperature, and significantly improving the reliability and service life of the transformer in outdoor environment. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the rotating cleaning device of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the rotating cleaning device of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the sliding cleaning device structure of the present invention. Figure 1 ; Figure 6 This is the invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the cooling device structure of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the cooling device structure of the present invention. Figure 2 .

[0019] In the above image, 100. Outer shell; 200. Canopy; 300. Cover; 400. Base; 500. Telescopic rod; 600. Elastic airbag; 700. Transformer; 800. Ventilation duct; 900. Filter screen; 1000. Rotary cleaning device; 1001. Air tank; 1002. Connecting pipe; 1003. Exhaust pipe; 1004. Air valve; 1005. Spring 1; 1006. Sliding block; 1007. Power rod; 1008. Rack and pinion; 1009. Hollow gear; 1010. Cleaning rod 1; 1011. Cleaning rod 2; 1100. Sliding cleaning device; 1101. Fixed rod; 1102. Cleaning rod three; 1103. Sliding rod; 1104. Moving plate; 1105. Spring two; 1200 Cooling device; 1201 Bimetallic strip; 1202 Mounting base; 1203 Switch; 1204 Coolant tank; 1205 Circulating pump; 1206 Circulating water pipe; 1207 Dustproof frame; 1208 Fan blade; 1209 Semiconductor cooler; 1210 Heat dissipation fins. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0022] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0023] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0024] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Example 1, see Figures 1-4This embodiment provides a dustproof power transformer, including a housing 100 as the main protective structure, which isolates the external environment from direct corrosion of the internal transformer 700. A cover 300 is fixedly installed on the top of the housing 100, and a canopy 200 is fixedly installed on the top of the cover 300 to block rain, snow, fallen leaves and other debris, reducing the direct entry of external dust into the housing. The transformer 700 is assembled inside the housing 100, and an elastic airbag 600 is fixedly installed at the bottom of the transformer 700 to buffer the vibration of the transformer during operation. At the same time, the vibration compresses the internal gas to generate pressure energy. Elastic airbags 600 are fixedly installed around the bottom of the transformer 700. A telescopic rod 500 assists in supporting the transformer and limiting its vibration amplitude. It works in conjunction with an elastic airbag 600 to maintain the transformer's stable position. A base 400 is fixedly installed at the bottom of the elastic airbag 600. Ventilation ducts 800 are fixedly installed through both sides of the outer casing 100 to provide airflow channels for heat dissipation and ensure internal air circulation. A filter 900 is installed on the left side of the ventilation ducts 800. A rotating cleaning device 1000 is installed on the left side of the elastic airbag 600. The rotating cleaning device 1000 includes an air storage box 1001 fixedly installed on both sides of the inner wall of the outer casing 100 and a hollow gear 100 rotatably mounted on the right side of the ventilation ducts 800. 9. A connecting pipe 1002 is connected through the right side of the air storage tank 1001, connecting the elastic airbag 600 to the air storage tank 1001 to transport the compressed gas. The connecting pipe 1002 is connected to the elastic airbag 600. An exhaust pipe 1003 is installed on the top of the air storage tank 1001. An exhaust hole is opened on the wall of the exhaust pipe 1003. An air valve 1004 is installed at the bottom of the exhaust pipe 1003 to control the timing of gas discharge. It automatically opens when the gas pressure in the air storage tank reaches a threshold. A sliding block 1006 is slidably connected to the inner side of the exhaust pipe 1003. The sliding block 1006 slides and seals with the inner wall of the exhaust pipe 1003. A spring 1005 is fixedly installed at the bottom of the sliding block 1006. A power rod 1007 is fixedly installed at the top of the sliding block 1006. A rack rod 1008 is fixedly installed at the top of the power rod 1007. The rack rod 1008 meshes with the hollow gear 1009. A cleaning rod 1010 is fixedly installed on the left side of the hollow gear 1009. A cleaning rod 2 1011 is fixedly installed on the left side of the cleaning rod 1010. Both the cleaning rod 1010 and the cleaning rod 2 1011 are equipped with cleaning brushes. The cleaning rod 2 1011 matches the inner wall of the ventilation duct 800 to ensure that the cleaning rod 2 can fit tightly against the inner wall of the duct and thoroughly clean the accumulated dust.

[0027] In practical use, when the transformer 700 is working, the magnetostriction of the silicon steel sheets causes the iron core to vibrate. Guided by the telescopic rod 500, it uses its own vibration to move stably up and down. As the transformer 700 moves up and down, it presses the elastic airbag 600 repeatedly, causing the gas inside to be ejected rapidly. The gas enters the gas storage tank 1001 through the connecting pipe 1002, and the gas pressure in the gas storage tank 1001 gradually increases. When the pressure reaches a certain level, the air valve 1004 opens, and the gas is rapidly discharged from the inside of the exhaust pipe 1003. The discharged gas impacts the sliding block 1006, causing it to overcome the elastic force of the spring 1005 and move upward. The sliding block 1006 drives the power rod 1007 and the rack 1008 to move upward synchronously. 8 meshes with the hollow gear 1009. The upward movement of the rack rod 1008 drives the hollow gear 1009 to rotate. When the hollow gear 1009 rotates, it drives the cleaning rod 1010 and cleaning rod 1011 fixed on its left side to rotate synchronously. The cleaning brushes on the surface of the cleaning rod 1010 and cleaning rod 1011 rotate and clean the inner wall of the ventilation duct 800 and the filter screen 900, effectively removing the dust attached to them, preventing dust from clogging the ventilation duct 800 and the filter screen 900, ensuring smooth ventilation and improving heat dissipation. After most of the gas in the elastic airbag 600 is discharged through the exhaust port of the exhaust pipe 1003, its internal pressure decreases, the air valve 1004 closes, and the sliding block 1006 is reset under the elastic force of the spring 1005, ready for the next cleaning action.

[0028] Example 2, see Figures 1-6 Based on Embodiment 1, this embodiment has a sliding cleaning device 1100 mounted on the top of the rack 1008 for sliding up and down to clean the inner wall of the outer casing 100. The sliding cleaning device 1100 includes a fixed rod 1101 slidably connected to the inner wall of the outer casing 100, serving as a support carrier for the entire device. The fixed rod 1101 is positioned directly above the rack 1008. A cleaning rod 1102 is connected through the middle of the fixed rod 1101. A cleaning brush is provided on the side of the cleaning rod 1102 facing the inside of the outer casing 100 to prevent dust accumulation from affecting the heat dissipation of the outer casing or the operation of internal components. Sliding rods 1103 are fixedly connected to both sides of the cleaning rod 1102 to restrict its movement direction. The cleaning rod slides along a pre-set slide rail on the inner wall of the outer casing 100 to ensure that the cleaning rod moves smoothly without deviation. A moving plate 1104 is fixedly connected to the bottom of the fixed rod 1101. A spring 1105 is fixedly installed on the top of the moving plate 1104. The moving plate 1104 and the top structure of the outer casing cooperate to form a reciprocating cleaning cycle.

[0029] In practical use, when the rack 1008 moves upward under the push of gas, it contacts the fixed rod 1101 and drives it to move upward synchronously. During the upward movement of the fixed rod 1101, the cleaning rod 1102 moves upward, and the cleaning brush on its surface continuously scrapes the dust on the inner wall of the outer casing 100. The fixed rod 1101 and the cleaning rod 1102 slide on the inner wall of the outer casing 100 through the sliding rod 1103. When the rack 1008 completes the cleaning action and resets, the moving plate 1104 moves downward under the elastic force of the spring 1105, causing the cleaning rod 1102 to slide downward along the sliding rod 1103, so that... The cleaning brush performs a second cleaning of the inner wall of the outer casing 100. This two-way cleaning mechanism effectively prevents dust from accumulating on the inner wall of the outer casing 100. The sliding range of the cleaning rod 1102 is limited by the length of the sliding rod 1103, and it always maintains contact with the inner wall of the outer casing 100 during the movement. At the same time, the elastic coefficient of the spring 1105 is precisely calculated to provide sufficient restoring force without causing damage to the equipment structure due to excessive elasticity. This device achieves automatic cleaning of the inner wall of the outer casing 100 through mechanical linkage, without the need for an additional power source, significantly improving the dustproof performance and maintenance convenience of the transformer.

[0030] Example 3, see Figures 1-8Based on Embodiment 1, this embodiment includes a cooling device 1200 on the left side of the transformer 700 to reduce its temperature. The cooling device 1200 includes a coolant tank 1204 fixedly installed on the inner wall of the outer casing 100 to store coolant and provide a cold source for cooling; a fixed base 1202 fixedly installed inside the outer casing 100; a switch 1203 fixedly installed on the top of the fixed base 1202 to control the start and stop of the circulating pump 1205; a bimetallic strip 1201 fixedly installed on the top of the coolant tank 1204; and a temperature sensing element that triggers the switch 1203 according to temperature changes. When the temperature rises, the switch 1203 is bent and pressed; when the temperature drops, the switch 1203 is reset and disconnected. The bimetallic strip 1201 consists of a first metal layer and a second metal layer stacked together. The coefficient of thermal expansion of the first metal layer is greater than that of the second metal layer, and the first metal layer is located above the second metal layer. A circulation pump 1205 is installed on the right side of the top of the coolant tank 1204, which drives the coolant to flow in the circulation water pipe 1205. The output end of the circulation pump 1205 is connected to the circulation water pipe 1206, which is arranged close to the surface of the transformer 700 to maximize heat exchange efficiency. A dustproof frame 1207 is fixedly installed on the left side of the surface of the coolant tank 1204 to prevent dust from entering the equipment. A fan blade 1208 is installed on the outside of the dustproof frame 1207, and a semiconductor cooler 1209 is installed on the inside of the dustproof frame 1207. The cooling end of the semiconductor cooler 1209 is located inside the coolant tank 1204, and it cools through the thermoelectric effect to reduce the temperature of the coolant. It is in full contact with the coolant and maintains the low temperature of the coolant. A heat dissipation fin 1210 is fixedly installed on the outside of the semiconductor cooler 1209, and the heat dissipation end of the semiconductor cooler 1209 is located on the right side of the heat dissipation fin 1210 to expand the heat dissipation area and accelerate heat transfer.

[0031] In practical use, when the transformer 700 generates heat and its temperature rises, the bimetallic strip 1201 bends downwards due to the difference in thermal expansion coefficients between the first and second metal layers. Pressing the switch 1203 downwards activates the circulation pump 1205. The circulation pump 1205 circulates the coolant in the coolant tank 1204 through the circulation pipe 1206. During this circulation, the coolant absorbs the heat generated by the transformer 700, thus lowering its temperature. The cooling end of the semiconductor cooler 1209 continuously cools the coolant in the coolant tank 1204, maintaining a lower temperature for better heat absorption from the transformer 700. The semiconductor cooler 1209 dissipates heat through the heat dissipation fins 1210. After the transformer 700's temperature decreases, the bimetallic strip 1201 gradually returns to its original shape. When the switch 1203 is no longer pressed, the circulation pump 1205 stops working, and the entire cooling device 1200 stops operating, waiting to restart when the temperature rises again. This cooling device 1200 can effectively control the temperature of the transformer 700, preventing damage due to excessive temperature and improving the operational reliability and service life of the transformer 700 in outdoor environments.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A power transformer with dustproof function, comprising a casing, characterized in that, A cover is fixedly installed on the top of the outer shell, and a baffle is fixedly installed on the top of the cover. A transformer is installed inside the outer shell, and an elastic airbag is fixedly installed at the bottom of the transformer. Telescopic rods are fixedly installed around the bottom of the transformer, and a base is fixedly installed at the bottom of the elastic airbag. Ventilation ducts are fixedly installed through both sides of the outer shell. A filter screen is installed on the left side of the ventilation ducts, and a rotating cleaning device is installed on the left side of the elastic airbag. The rotating cleaning device includes an air storage box fixedly installed on both sides of the inner wall of the outer shell and a hollow gear rotatably installed on the right side of the ventilation duct. A connecting pipe is connected through the right side of the air storage box. An exhaust pipe is installed on the top of the air storage box, and an air valve is installed at the bottom of the exhaust pipe. A sliding block is slidably connected to the inside of the exhaust pipe. A spring is fixedly installed at the bottom of the sliding block. A power rod is fixedly installed on the top of the sliding block, and a rack is fixedly installed on the top of the power rod. A cleaning rod is fixedly installed on the left side of the hollow gear, and a cleaning rod is fixedly installed on the left side of the cleaning rod.

2. A power transformer with dustproof function according to claim 1, characterized in that, The connecting tube is connected to the elastic airbag, and the rack and pinion meshes with the hollow gear.

3. A power transformer with dustproof function according to claim 1, characterized in that, The second cleaning rod is matched with the inner wall of the ventilation duct, and both the first and second cleaning rods are provided with cleaning brushes on their surfaces.

4. A power transformer with dustproof function according to claim 1, characterized in that, The sliding block slides and seals with the inner wall of the exhaust pipe, and an exhaust hole is provided on the wall of the exhaust pipe.

5. A power transformer with dustproof function according to claim 1, characterized in that, The top of the rack is equipped with a sliding cleaning device for sliding up and down to clean the inner wall of the housing.

6. A power transformer with dustproof function according to claim 5, characterized in that, The sliding cleaning device includes a fixed rod slidably connected to the inner wall of the outer shell, a cleaning rod three is connected through the middle of the fixed rod, sliding rods are fixedly connected to both sides of the cleaning rod three, a movable plate is fixedly connected to the bottom of the fixed rod, and a spring two is fixedly installed on the top of the movable plate.

7. A power transformer with dustproof function according to claim 6, characterized in that, The cleaning rod has cleaning brushes on one side of the three sides facing the inside of the outer casing, and the fixing rod is located directly above the rack rod.

8. A power transformer with dustproof function according to claim 1, characterized in that, The transformer is equipped with a cooling device on its left side to reduce the transformer temperature.

9. A power transformer with dustproof function according to claim 8, characterized in that, The cooling device includes a coolant tank fixedly installed on the inner wall of the outer casing and a fixed base fixedly installed inside the outer casing. A switch is fixedly installed on the top of the fixed base. A bimetallic strip is fixedly installed on the top of the coolant tank. A circulation pump is installed on the right side of the top of the coolant tank. The output end of the circulation pump is connected to a circulating water pipe. A dustproof frame is fixedly installed on the left side of the surface of the coolant tank. Fan blades are installed on the outer side of the dustproof frame. A semiconductor cooler is installed on the inner side of the dustproof frame. Heat dissipation fins are fixedly installed on the outer side of the semiconductor cooler.

10. A power transformer with dustproof function according to claim 9, characterized in that, The cooling end of the semiconductor cooler is located inside the coolant tank, and the heat dissipation end of the semiconductor cooler is located on the right side of the heat dissipation fins. The bimetallic sheet is composed of a first metal layer and a second metal layer stacked together. The thermal expansion coefficient of the first metal layer is greater than that of the second metal layer, and the first metal layer is located above the second metal layer.

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