A transformer for power transmission and distribution

Abstract

The present invention discloses a transformer for power transmission and distribution, and specifically relates to the technical field of transformers, including a transformer body, heat dissipation components are fixedly installed on both sides of the transformer body, an exhaust mechanism is fixedly installed on one side of the transformer body, a ventilation mechanism is fixedly installed on the side of the transformer body away from the exhaust mechanism, and the exhaust mechanism includes a first sealing ring sleeve fixedly installed on one side of the transformer body, and a first guide wind tube is fixedly installed on the inner wall of the first sealing ring sleeve. The present invention blows air into the inner cavity of the transformer body to dissipate heat, and a scraper strip that rotates synchronously with the outer wall of the first guide wind tube is rotated as a whole, and the outer wall of the first guide wind tube is always cleaned of dust and impurities, thereby preventing dust from clogging the hollow groove, and also avoiding the inconvenience caused by cleaning impurities stuck inside the hollow groove after use.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer technology, and more specifically, to a transformer for power transmission and distribution. Background Art

[0002] Power transmission and distribution refers to the transmission of electric energy. During the transmission and transformation process, transformers are important facilities responsible for electric energy conversion, voltage step-up and step-down, and power distribution. Transformers are devices that use the principle of electromagnetic induction to change AC voltage. Their main components are primary coils, secondary coils, and iron cores (magnetic cores). Their main functions include voltage conversion, current conversion, impedance conversion, isolation, and voltage stabilization (magnetic saturation transformers). Transformers can be divided into distribution transformers, power transformers, fully sealed transformers, combined transformers, dry-type transformers, oil-immersed transformers, single-phase transformers, electric furnace transformers, rectifier transformers, reactors, anti-interference transformers, lightning protection transformers, box-type transformer test transformers, corner transformers, high current transformers, excitation transformers, etc.

[0003] Chinese patent CN202310875145.5 discloses a transformer for power transmission and distribution, including: an oil tank, a heat sink fin, a top cover, a terminal head, an oil pillow, an oil delivery pipe, an oil outlet pipe and an iron core coil assembly. The surfaces of both sides of the oil tank are fixedly mounted with heat sink fins, the top surface of the oil tank is fixedly mounted with a top cover, and the top of the top cover is fixedly mounted with a terminal head. The application independently realizes the real-time and rapid flow circulation of transformer oil and improves the heat dissipation efficiency by setting an inner protective oil tank, a circulating heat dissipation oil pipe and a gear oil pump. The invention achieves effective cooling by setting a gear oil pump, a transmission rod, an air intake pipe, a first bevel gear, a second bevel gear, an air suction and air supply fan, a dehumidification cake bag and an air outlet cavity and other structures, and performs cooling protection on the iron core coil assembly to prevent the iron core coil assembly from accumulating too much heat and causing heat loss, which affects the normal use of power transmission and distribution, and at the same time reduces the moisture content of transformer oil and improves the dryness.

[0004] At present, the heat dissipation treatment of transformers is mostly carried out by heat dissipation grooves opened on both sides of the transformer shell and heat dissipation fins embedded and installed on both sides of the transformer. However, although the heat dissipation grooves can achieve the effect of internal and external ventilation, they are also very likely to cause dust and impurities to block the heat dissipation grooves, which in turn leads to reduced ventilation efficiency and inconvenience in practical use. At the same time, during the power transmission and distribution process, the transformer oil inside the transformer heats up during operation, and the temperature of the transformer oil rises slowly, while the coil and the iron core inside the transformer heat up quickly. It is often impossible to cool down the windings and the iron core after they have heated up. The cooling treatment is carried out by judging the temperature of the cooling transformer oil. There will be a time difference in cooling. This will cause certain damage to the coil and the iron core inside the transformer for a long time, reducing the overall service life of the transformer. Therefore, the present invention proposes a transformer for power transmission and distribution to solve the above problems. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a transformer for power transmission and distribution, comprising a transformer body and a transformer device inside the transformer body, heat dissipation components are fixedly installed on both sides of the transformer body, an exhaust mechanism is fixedly installed on one side of the transformer body, a ventilation mechanism is fixedly installed on the side of the transformer body away from the exhaust mechanism, an oil barrel is provided on the top of the transformer body, and a cooling circulation mechanism is provided on the inner wall of the transformer body close to the exhaust mechanism;

[0006] The exhaust mechanism includes a first sealing ring sleeve fixedly installed on one side of the transformer main body, a first guide air cylinder fixedly installed on the inner wall of the first sealing ring sleeve, the interior of the first guide air cylinder is arranged in a hollow state, and a plurality of hollow grooves are provided on the circumferential outer wall of the first guide air cylinder and a side away from the first sealing ring sleeve, an exhaust fan is rotatably installed inside the first guide air cylinder, a hollow cover plate fixedly connected to the first guide air cylinder is rotatably installed on both sides of the exhaust fan, a supporting rod fixedly connected to the exhaust fan is rotatably installed on one side of the hollow cover plate, one end of the supporting rod extending out of the outer wall of the first guide air cylinder is fixedly installed with a bending frame, one end of the bending frame is fixedly installed with a hard baffle, and a dust scraping strip that fits the outer wall of the first guide air cylinder is fixedly installed on the inner wall of the hard baffle, the end of the driving shaft of the exhaust fan away from the bending frame is fixedly connected to a movable part, and the side of the movable part away from the exhaust fan is fixedly connected to a connecting part.

[0007] Preferably, the cooling circulation mechanism includes a transfer chamber, which is sealed and slidably connected to a piston plate inside the transfer chamber, and a connecting rod is hinged on the top of the piston plate. The connecting rod is movably connected to the transfer chamber, and the connecting rod is connected to a connecting piece. During the rotation of the movable piece, the connecting rod and the piston plate can be driven to move back and forth up and down inside the transfer chamber.

[0008] Preferably, the transformer device includes an oil storage tank and a transformer assembly, the oil storage tank is fixedly connected to the inner wall of the transformer body, an adjusting cavity is opened at the connection between the oil storage tank and the inner wall of the transformer body, a heat conductive member is provided at the top of the adjusting cavity, one end of the heat conductive member seals and passes through the oil storage tank and is fixedly connected to the transformer assembly, the other end of the heat conductive member is fixedly connected to a bimetallic strip, the bottom of the bimetallic strip on a side away from the heat conductive member is fixedly connected to an insulating assembly, and a conductive mechanism is provided at the bottom of the adjusting cavity.

[0009] Preferably, the conductive mechanism includes a first conductive component and a second conductive component, the first conductive component and the second conductive component are arranged on the same horizontal axis, and the ends of the first conductive component and the second conductive component close to each other are slidably connected with conductive joints, and the two conductive joints are connected with extrusion springs between the first conductive component and the second conductive component.

[0010] Preferably, a guide pipe is provided on the side of the oil storage tank close to the exhaust mechanism, one end of the guide pipe is connected to the oil storage tank, and the other end of the guide pipe is connected to the bottom of the transfer bin, an expansion valve is provided inside the guide pipe, an oil inlet pipe is provided at the bottom of the side of the oil storage tank close to the guide pipe, the oil inlet pipe is connected to the transfer bin, and a one-way valve is provided at the connection between the guide pipe, the oil inlet pipe and the transfer bin.

[0011] Preferably, a positioning sleeve is fixedly installed on one side of the first guide air cylinder, a limiting frame is fixedly installed on the outer wall of the positioning sleeve, the outer circumferential diameter length of the limiting frame is smaller than the horizontal straight length of the bending frame, and a guide sleeve slidably connected to the limiting frame is fixedly installed on one side of the limiting frame.

[0012] Preferably, the ventilation mechanism includes a second sealing ring sleeve fixedly mounted on a side of the transformer body away from the first sealing ring sleeve, a second guide air tube is fixedly mounted on the inner wall of the second sealing ring sleeve, a plurality of exhaust slots are provided on the outer wall of the second guide air tube, and a plurality of sealing frames are fixedly mounted on the inner walls of the plurality of second guide air tubes, the center points of the first guide air tube and the second guide air tube are arranged on the same horizontal line, a cross bracket is fixedly mounted on the inner wall of the second sealing ring sleeve, and a control device is fixedly mounted inside the cross bracket.

[0013] Preferably, the plurality of sealing frames are arranged in a one-to-one correspondence with the exhaust slots, and the plurality of exhaust slots and sealing frames are arranged in a circular shape and equidistantly in sequence around the circumferential surface of the second guide air cylinder.

[0014] Preferably, the inner cavity of the second guide air tube is provided with a plurality of sealing plates, the plurality of sealing frames have the same curvature as the sealing plates, and the plurality of sealing plates are inserted into the interior of the sealing frames under normal conditions.

[0015] Preferably, the inner cavity of the second guide air tube is fixedly installed with a positioning sleeve arranged in a horizontal state, one end of the positioning sleeve is rotatably connected to an electric threaded screw, the outer wall of the electric threaded screw is provided with a plurality of first guide frames arranged in an inclined state, and the outer wall of the positioning sleeve is hinged with a plurality of second guide frames arranged in an inclined state, wherein each of the first guide frames and a corresponding second guide frame are hinged on the inner wall of the sealing frame.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention realizes that the outer wall of the first guide air tube is always cleaned of dust and impurities while blowing air to dissipate heat, thereby preventing the hollow groove from being blocked by dust on the one hand, and avoiding the inconvenience caused by cleaning impurities stuck inside the hollow groove after use in the traditional way on the other hand, and also avoiding the problem of dust and impurities in the external air flowing into the interior of the transformer body;

[0018] 2. The present invention provides a cooling circulation mechanism, and after the temperature of the transformer component rises, the transformer can be cooled down in advance, so as to avoid cooling down and dissipating heat after the transformer oil is heated up, and to avoid damage to the coil and the iron core inside the transformer due to long-term use, thereby improving the service life of the transformer. At the same time, the transformer oil inside the oil storage tank is extracted and cooled down in advance, and the phenomenon of oil overflow caused by the change of transformer oil density and the upward movement of the transformer oil level during the heating process of the transformer oil is also avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the overall structure of the exhaust mechanism of the present invention.

[0021] Figure 3 It is a structural sectional view of the exhaust mechanism of the present invention.

[0022] Figure 4 For the present invention Figure 4 A-section structure enlarged view.

[0023] Figure 5 It is a structural cross-sectional view of the ventilation mechanism of the present invention.

[0024] Figure 6 For the present invention Figure 5 Enlarged view of the structure of part B.

[0025] Figure 7 This is a schematic diagram of the internal structure of the transformer body of the present invention.

[0026] Figure 8 For the present invention Figure 7 Enlarged view of the C structure.

[0027] Fig. 9 For the present invention Figure 7 Enlarged view of the D structure.

[0028] Fig.10 It is a schematic structural diagram of the flow guide tube of the present invention.

[0029] The accompanying drawings are marked as follows: 1. transformer body; 101. transformer device; 102. oil storage tank; 103. transformer assembly; 104. regulating chamber; 105. heat-conducting member; 106. bimetallic strip; 107. insulating assembly; 108. conductive mechanism; 109. first conductive assembly; 110. second conductive assembly; 111. conductive joint; 112. extrusion spring; 113. flow guide pipe; 114. oil inlet pipe; 115. one-way valve; 116. expansion valve; 2. heat dissipation assembly; 3. exhaust mechanism; 31. first sealing ring sleeve; 32. first guide air duct; 33. exhaust fan; 34. Support rod; 35. Bending frame; 36. Positioning sleeve; 37. Limiting frame; 38. Guide sleeve; 39. Hard baffle; 310. Dust scraper strip; 311. Movable part; 312. Connecting part; 4. Ventilation mechanism; 41. Second sealing ring sleeve; 42. Second guide air duct; 43. Exhaust slot; 44. Sealing frame; 45. Sealing plate; 46. Cross support; 47. Control device; 49. Positioning sleeve; 410. First guide frame; 411. Second guide frame; 5. Oil drum; 6. Cooling circulation mechanism; 61. Transfer chamber; 62. Piston plate; 63. Connecting rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] During the power transmission and distribution process, the voltage of the current needs to be converted into high and low voltage through a transformer. However, the transformer generates a large amount of heat during operation, and the components inside the transformer need to be cooled and cooled to avoid safety hazards caused by excessive internal temperature, which affects the normal transportation of power transmission and distribution. The two sides of the existing transformer shell are cooled by heat dissipation grooves opened on both sides and heat sinks embedded and installed on both sides of the transformer. However, although the heat dissipation grooves can achieve internal and external ventilation, they are also prone to dust and impurities blocking the heat dissipation grooves, which in turn reduces the ventilation efficiency and is not convenient for actual use.

[0033] A transformer for power transmission and distribution according to an embodiment of the present invention, such as Figure 1-2 As shown, it includes a transformer body 1 and a transformer device 101 inside the transformer body 1, and heat dissipation components 2 are fixedly installed on both sides of the transformer body 1;

[0034] An exhaust mechanism 3 is fixedly installed on one side of the transformer body 1, a ventilation mechanism 4 is fixedly installed on the side of the transformer body 1 away from the exhaust mechanism 3, an oil drum 5 is arranged on the top of the transformer body 1, and a cooling circulation mechanism 6 is arranged on the inner wall of the transformer body 1 close to the exhaust mechanism 3;

[0035] Reference Figure 3-4 As shown, the exhaust mechanism 3 includes a first sealing ring sleeve 31 fixedly mounted on one side of the transformer body 1, a first guide air cylinder 32 is fixedly mounted on the inner wall of the first sealing ring sleeve 31, the interior of the first guide air cylinder 32 is arranged in a hollow state, and a plurality of hollow grooves are provided on the circumferential outer wall of the first guide air cylinder 32 and on the side away from the first sealing ring sleeve 31, so that external air can flow into the inner cavity of the first guide air cylinder 32 from multiple directions of the outer periphery of the first guide air cylinder 32 through the plurality of hollow grooves, and the first guide air cylinder 32 is provided with a plurality of hollow grooves. An exhaust fan 33 is rotatably mounted inside the air cylinder 32, and hollow cover plates fixedly connected to the first guide air cylinder 32 are rotatably mounted on both sides of the exhaust fan 33. A supporting rod 34 fixedly connected to the exhaust fan 33 is rotatably mounted on one side of the hollow cover plate. The supporting rod 34 passes through the hollow cover plate and is fixedly connected to the rotating shaft of the exhaust fan 33. Then, when the exhaust fan 33 rotates as a whole, it can synchronously drive the supporting rod 34 to rotate as a whole. One end of the supporting rod 34 extending out of the outer wall of the first guide air cylinder 32 is fixedly mounted with The bending frame 35 has a hard baffle 39 fixedly mounted on one end of the bending frame 35, and a dust scraper strip 310 that is in contact with the outer wall of the first guide air tube 32 is fixedly mounted on the inner wall of the hard baffle 39. In actual use, by starting the exhaust fan 33 to rotate, external air enters the inner cavity of the first guide air tube 32 through the several hollow grooves opened on the outer wall of the first guide air tube 32, and then flows into the interior of the transformer body 1, so that the interior of the transformer body 1 is ventilated and heat dissipated. At the same time, the rotating support rod 34 synchronously drives the bending frame 35 to rotate the hard baffle 39 and the dust scraper strip 310 as a whole, and then synchronously adheres to the outer wall of the first guide air tube 32, and performs a rotational cleaning operation on the outer wall. On the one hand, it avoids the problem that dust blocks the hollow groove and then affects the gas circulation. On the other hand, it blocks larger impurities in the air and prevents them from approaching the first guide air tube 32, thereby avoiding the inconvenience caused by cleaning the impurities stuck in the hollow groove after use.

[0036] A positioning sleeve 36 is fixedly installed on one side of the first guide air tube 32, and a limiting frame 37 is fixedly installed on the outer wall of the positioning sleeve 36. The outer circumferential diameter length of the limiting frame 37 is smaller than the horizontal straight length of the bending frame 35, and a guide sliding sleeve 38 slidably connected to the limiting frame 37 is fixedly installed on one side of the limiting frame 37. The purpose of this arrangement is to make the bending frame 35 as a whole rotate synchronously with the supporting rod 34 more stable and with balanced force, so as to avoid continuous rotation that causes the hard baffle plate 39 and the scraper strip 310 to deflect excessively and fail to fit with the outer wall of the first guide air tube 32, thereby affecting the dust cleaning of the outer wall of the first guide air tube 32.

[0037] Reference Figure 5-6 As shown, the ventilation mechanism 4 includes a second sealing ring sleeve 41 fixedly installed on the side of the transformer body 1 away from the first sealing ring sleeve 31, a second guide air cylinder 42 is fixedly installed on the inner wall of the second sealing ring sleeve 41, a plurality of exhaust slots 43 are provided on the outer wall of the second guide air cylinder 42, and a plurality of sealing frames 44 are fixedly installed on the inner walls of the plurality of second guide air cylinders 42, the center points of the first guide air cylinder 32 and the second guide air cylinder 42 are arranged on the same horizontal line, the purpose of such arrangement is to enable direct air convection after the gas enters the interior of the transformer body 1, so that the heat inside the transformer body 1 can be circulated and discharged, thereby improving the heat dissipation effect, wherein the plurality of sealing frames 44 are arranged in a one-to-one correspondence with the exhaust slots 43, and the plurality of exhaust slots 43 and the sealing frames 44 are arranged in a circular shape equidistantly around the circumferential surface of the second guide air cylinder 42. The purpose of such setting is to enable multiple sealing frames 44 to enclose and limit the outer peripheral range of the exhaust slot 43 on the inner wall of the second guide air duct 42. At the same time, the inner cavity of the second guide air duct 42 is provided with multiple sealing plates 45. The multiple sealing frames 44 have the same curvature as the sealing plates 45, and the multiple sealing plates 45 are plugged into the inside of the sealing frame 44 under normal conditions. Under normal conditions, the sealing plates 45 are plugged into the inside of the sealing frame 44 to seal the exhaust slot 43, so that when the internal temperature of the transformer body 1 does not need to be heat-dissipated, the second guide air duct 42 is kept in a closed state. When heat dissipation is required, convection ventilation can be carried out by pulling out the multiple sealing plates 45 from the inner cavity of the sealing frame 44 to expose the exhaust slot 43. A control device 47 is fixedly installed inside the cross support 46, and the control device 47 is a controller.

[0038] The inner cavity of the second guide air cylinder 42 is fixedly installed with a positioning sleeve 49 arranged in a horizontal state, one end of the positioning sleeve 49 is rotatably connected to the electric threaded screw 48, and the outer wall of the electric threaded screw 48 is provided with a plurality of first guide frames 410 arranged in an inclined state, one end of each of the plurality of first guide frames 410 is hinged with a threaded sleeve, and the threaded sleeve is engaged with the outer wall of the electric threaded screw 48, and then when the electric threaded screw 48 rotates, the threaded sleeve can drive the plurality of first guide frames 410 hinged thereto to translate on the outer wall of the electric threaded screw 48, and at the same time, the outer wall of the positioning sleeve 49 is hinged with a plurality of second guide frames 411 arranged in an inclined state, wherein each first guide frame 410 and a corresponding second guide frame 411 are hinged on the inner wall of the sealing frame 44, and the purpose of such a setting is that in the process of the threaded sleeve driving the first guide frame 410 to translate, the inclination angle of the first guide frame 410 changes, and then the inclination angle of the second guide frame 411 can be gradually changed, so that The distance between the ends of the first guide frame 410 and the second guide frame 411 that are away from each other is also synchronously increased, thereby reducing the horizontal height of the sealing plate 45, so that the sealing plate 45 is pulled out from the inner cavity of the sealing frame 44, so that the inner cavity of the second guide air tube 42 can be ventilated through the exhaust slot 43, and a cross support 46 is fixedly installed on the inner wall of the second sealing ring sleeve 41, and a control device 47 is fixedly installed inside the cross support 46. The control device 47 is electrically connected to the electric threaded screw 48 and the exhaust fan 33 respectively. Then, in actual use, when the control device 47 receives the power-on signal of the first conductive component 109 and the second conductive component 110, the control device 47 controls the electric threaded screw 48 and the exhaust fan 33 to rotate, so that the exhaust fan 33 draws external gas into the inner cavity of the transformer body 1, and controls the electric threaded screw 48 to rotate to open the sealing frame 44, so that air can circulate at the exhaust slot 43, so that the air inside the transformer body 1 circulates faster, thereby achieving a faster cooling effect.

[0039] The present invention achieves the goal of blowing air to dissipate heat while always cleaning the outer wall of the first guide air tube 32 and blocking impurities, thereby preventing dust from clogging the hollow groove on the one hand, and avoiding the inconvenience caused by the traditional method of cleaning impurities stuck inside the hollow groove after use on the other hand, and also preventing the problem of dust and impurities in the outside air from flowing into the interior of the transformer body.

[0040] Embodiment 2

[0041] During the power transmission and distribution process, the transformer oil inside the transformer will heat up during the operation of the transformer, but the temperature of the transformer oil rises slowly, while the windings and the core inside the transformer heat up quickly. It is often impossible to cool down the windings and the core after they heat up, and there is a time difference in cooling down. This will cause certain damage to the windings and the core inside the transformer for a long time, reducing the overall service life of the transformer. At the same time, the power transmission and distribution environment is different, and the transformer oil level inside the transformer is different. However, when the transformer is heated up, the transformer oil temperature will rise, and the transformer oil density will change, that is, thermal expansion will occur, and the transformer oil level will move upward to prevent overflow. In addition, the existing method is often to regulate the transformer oil that has already heated up, and the transformer oil cannot be regulated in advance, which will result in time error and cause the transformer oil to overflow.

[0042] See attached Figure 7-9 The cooling circulation mechanism 6 includes a transfer chamber 61, a piston plate 62 is sealed and slidably connected inside the transfer chamber 61, a connecting rod 63 is hinged on the top of the piston plate 62, a movable part 311 is fixedly connected to the end of the driving shaft of the exhaust fan 33 away from the bending frame 35, a connecting part 312 is fixedly connected to the side of the movable part 311 away from the exhaust fan 33, the connecting rod 63 is movably connected to the transfer chamber 61, and the connecting rod 63 is connected to the connecting part 312. During the rotation of the movable part 311, the connecting rod 63 and the piston plate 62 can be driven to move back and forth up and down inside the transfer chamber 61 through the connecting part 312;

[0043] The transformer device 101 includes an oil storage tank 102 and a transformer assembly 103. The oil storage tank 102 is fixedly connected to the inner wall of the transformer body 1. The oil storage tank 102 is filled with transformer oil. The oil storage tank 102 is interconnected with the oil barrel 5. When the transformer oil in the oil storage tank 102 is reduced, the oil storage tank 102 is replenished by the transformer oil in the oil barrel 5. The prior art will not be repeated. An adjusting chamber 104 is provided at the connection between the oil storage tank 102 and the inner wall of the transformer body 1. A heat conducting member 105 is provided at the top of the adjusting chamber 104. The heat conducting member 105 can be made of a heat-conducting insulating metal, such as aluminum nitride. One end of the heat conducting member 105 is sealed and passes through the oil storage tank 102 and is fixedly connected to the transformer assembly 103. The other end of the heat conducting member 105 is fixedly connected to a bimetallic strip 106. The bottom of the bimetallic strip 106 away from the heat conducting member 105 is fixedly connected to an insulating assembly 107. When the bimetallic strip 106 is heated, the insulating assembly is fixed. One side of 107 will bend upward, and a conductive mechanism 108 is provided at the bottom of the regulating cavity 104. The conductive mechanism 108 includes a first conductive component 109 and a second conductive component 110. The first conductive component 109 and the second conductive component 110 are arranged on the same horizontal axis. The first conductive component 109 is electrically connected to the power supply, and the second conductive component 110 is electrically connected to the control device 47. The ends of the first conductive component 109 and the second conductive component 110 that are close to each other are both slidably connected with a conductive joint 111, and the conductive joints 111 are connected to the first conductive component 109 and the second conductive component 110 with a compression spring 112. In a normal state, the insulating component 107 is located between the two conductive joints 111, and the two conductive joints 111 are respectively in contact with the two sides of the insulating component 107. At this time, the compression spring 112 is in a compressed state, and the first conductive component 109 and the second conductive component 110 are not energized;

[0044] A guide pipe 113 is provided on one side of the oil storage tank 102 close to the exhaust mechanism 3. The guide pipe 113 is arranged in a wave shape. Fig.10As shown, one end of the guide pipe 113 is connected to the top of the oil storage tank 102, and the other end of the guide pipe 113 is connected to the bottom of the transfer chamber 61. An expansion valve 116 is arranged inside the guide pipe 113. An oil inlet pipe 114 is arranged at the bottom of one side of the oil storage tank 102 close to the guide pipe 113. The oil inlet pipe 114 is connected to the transfer chamber 61. A one-way valve 115 is arranged at the connection between the guide pipe 113 and the oil inlet pipe 114 and the transfer chamber 61. The one-way valve 115 connecting the oil inlet pipe 114 and the transfer chamber 61 allows the transformer oil in the oil storage tank 102 to enter the transfer chamber 61. The one-way valve 115 at the connection between the guide pipe 113 and the transfer chamber 61 115 allows the transformer oil in the transfer bin 61 to enter the guide pipe 113. The transformer oil entering the guide pipe 113 will pass through the expansion valve 116, so that the transformer oil in the guide pipe 113 changes from liquid to countless small water droplets. The pressure drops and the temperature of the transformer oil also drops. That is, the greater the pressure, the higher the temperature, and the smaller the pressure, the lower the temperature. The cooled transformer oil enters the oil storage tank 102 from the top of the oil storage tank 102 through the guide pipe 113, and is mixed with the heated transformer oil in the oil storage tank 102 to cool down, so as to avoid the cold transformer oil after cooling directly contacting the transformer component 103 and causing damage.

[0045] The transformer assembly 103 of the existing transformer is composed of an iron core and a coil. During the process of current transformation for power transmission and distribution, the temperature of the transformer assembly 103 will rise. After the temperature of the transformer assembly 103 rises, the transformer oil inside the oil storage tank 102 will rise, and the transformer oil heating time is relatively slow. Detecting the temperature rise of the transformer oil and then dissipating the heat will not only affect the efficiency of the normal use of the transformer assembly 103, but will also damage the transformer assembly 103 for a long time, reduce the service life of the transformer, and the overall cooling time of the transformer is relatively long. In actual use, when the temperature of the transformer assembly 103 rises to a certain extent, the heat-conducting member 105 made of heat-conducting insulating metal will rise together with the temperature rise of the transformer assembly 103. Since the electrons contained in the metal are free to move, their movement is accelerated by high temperature, so the heat-conducting member 105 and the bimetallic strip 106 heat up faster than the transformer oil. When the heat-conducting member 105 heats up, the bimetallic strip 106 will heat up synchronously and bend upward, thereby causing the insulating component 107 to move upward. At this time, the two conductive joints 111 are in contact under the action of the extrusion spring 112, and the first conductive component 109 and the second conductive component 110 are energized. At this time, the control device 47 receives the power-on signal, and the control device 47 controls the electric threaded screw 48 and the exhaust fan 33 to rotate. The rotation of the exhaust fan 33 drives the movable member 311 to rotate together. During the rotation of the movable member 311 The connecting rod 63 and the piston plate 62 can be driven to reciprocate up and down in the transfer chamber 61 through the connecting piece 312. When the connecting rod 63 and the piston plate 62 move upward in the transfer chamber 61, the transformer oil in the oil storage tank 102 will be sucked into the transfer chamber 61. When the connecting rod 63 and the piston plate 62 move downward in the transfer chamber 61, the transformer oil in the transfer chamber 61 will be squeezed into the guide pipe 113. The transformer oil entering the guide pipe 113 will pass through the expansion valve 116, so that the transformer oil in the guide pipe 113 is changed from liquid to countless small water droplets. The transformer oil pressure drops and the transformer oil temperature also drops. The transformer oil after the temperature drops enters the guide pipe 113 again. The oil storage tank 102 is filled with the oil from the exhaust fan 33, which not only cools the transformer oil, but also prevents the transformer oil in the oil storage tank 102 from cooling down as a whole and then entering the oil storage tank 102, which may damage the transformer assembly 103 due to excessively low temperature. At the same time, the external airflow drawn in by the exhaust fan 33 may also act on the guide tube 113, and the heat dissipation and cooling of the transformer oil and the transformer may be further accelerated by cooperating with the exhaust fan 33, thereby enabling the transformer to be cooled in advance and avoiding a long heat dissipation time and a cooling time difference. Since the transformer oil in the oil storage tank 102 is extracted and cooled in advance, the transformer oil density may change during the heating process of the transformer oil, and the transformer oil level may move upward and cause oil overflow.

[0046] By setting the cooling circulation mechanism 6, the present invention can dissipate heat and cool down the transformer in advance after the transformer component 103 is heated up, avoiding cooling and heat dissipation after the transformer oil is heated up, shortening the cooling time, avoiding damage to the coil and iron core inside the transformer caused by such a long time, and improving the service life of the transformer. At the same time, the transformer oil in the oil storage tank 102 is extracted and cooled in advance, and the phenomenon of oil overflow caused by the change of transformer oil density and the upward movement of transformer oil level during the heating process of the transformer oil is avoided.

[0047] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the case of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A transformer for power transmission and distribution, comprising a transformer body and a transformer device inside the transformer body, characterized in that: Heat dissipation components are fixedly installed on both sides of the transformer body, an exhaust mechanism is fixedly installed on one side of the transformer body, a ventilation mechanism is fixedly installed on the side of the transformer body away from the exhaust mechanism, an oil barrel is provided on the top of the transformer body, and a cooling circulation mechanism is provided on the inner wall of the transformer body close to the exhaust mechanism; The exhaust mechanism comprises a first sealing ring sleeve fixedly mounted on one side of the transformer main body, a first guide air cylinder fixedly mounted on the inner wall of the first sealing ring sleeve, the interior of the first guide air cylinder is arranged in a hollow state, and a plurality of hollow grooves are provided on the circumferential outer wall of the first guide air cylinder and on the side away from the first sealing ring sleeve, an exhaust fan is rotatably mounted inside the first guide air cylinder, hollow cover plates fixedly connected to the first guide air cylinder are rotatably mounted on both sides of the exhaust fan, a supporting rod fixedly connected to the exhaust fan is rotatably mounted on one side of the hollow cover plate, one end of the supporting rod extending out of the outer wall of the first guide air cylinder is fixedly mounted with a bending frame, one end of the bending frame is fixedly mounted with a hard baffle, a dust scraping strip that fits the outer wall of the first guide air cylinder is fixedly mounted on the inner wall of the hard baffle, a movable part is fixedly connected to one end of a driving shaft of the exhaust fan away from the bending frame, and a connecting part is fixedly connected to the side of the movable part away from the exhaust fan; The ventilation mechanism includes a second sealing ring sleeve fixedly installed on a side of the transformer body away from the first sealing ring sleeve, a second guide air tube is fixedly installed on the inner wall of the second sealing ring sleeve, a plurality of exhaust slots are provided on the outer wall of the second guide air tube, and a plurality of sealing frames are fixedly installed on the inner walls of the plurality of second guide air tubes, the center points of the first guide air tube and the second guide air tube are arranged on the same horizontal line, a cross bracket is fixedly installed on the inner wall of the second sealing ring sleeve, and a control device is fixedly installed inside the cross bracket.

2. A transformer for power transmission and distribution according to claim 1, characterized in that: The cooling circulation mechanism includes a transfer chamber, a piston plate is sealed and slidably connected inside the transfer chamber, a connecting rod is hinged on the top of the piston plate, the connecting rod is movably connected to the transfer chamber, the connecting rod is connected to a connecting piece, and the movable piece can drive the connecting rod and the piston plate to move back and forth up and down inside the transfer chamber during rotation.

3. A transformer for power transmission and distribution according to claim 1, characterized in that: The transformer device includes an oil storage tank and a transformer assembly. The oil storage tank is fixedly connected to the inner wall of the transformer body. An adjusting cavity is provided at the connection between the oil storage tank and the inner wall of the transformer body. A heat conductive member is provided on the top of the adjusting cavity. One end of the heat conductive member seals and passes through the oil storage tank and is fixedly connected to the transformer assembly. A bimetallic strip is fixedly connected to the other end of the heat conductive member. An insulating assembly is fixedly connected to the bottom of the bimetallic strip on the side away from the heat conductive member. A conductive mechanism is provided at the bottom of the adjusting cavity.

4. A transformer for power transmission and distribution according to claim 3, characterized in that: The conductive mechanism includes a first conductive component and a second conductive component, which are arranged on the same horizontal axis. The ends of the first conductive component and the second conductive component that are close to each other are slidably connected with conductive joints, and the two conductive joints are connected with extrusion springs between the first conductive component and the second conductive component.

5. A transformer for power transmission and distribution according to claim 3, characterized in that: A guide pipe is provided on the side of the oil storage tank close to the exhaust mechanism, one end of the guide pipe is connected to the oil storage tank, and the other end of the guide pipe is connected to the bottom of the transfer bin. An expansion valve is provided inside the guide pipe, and an oil inlet pipe is provided at the bottom of the side of the oil storage tank close to the guide pipe, and the oil inlet pipe is connected to the transfer bin. A one-way valve is provided at the connection between the guide pipe, the oil inlet pipe and the transfer bin.

6. A transformer for power transmission and distribution according to claim 1, characterized in that: A positioning sleeve is fixedly installed on one side of the first guide air cylinder, a limiting frame is fixedly installed on the outer wall of the positioning sleeve, the outer circumferential diameter length of the limiting frame is smaller than the horizontal straight length of the bending frame, and a guide sleeve slidably connected to the limiting frame is fixedly installed on one side of the limiting frame.

7. A transformer for power transmission and distribution according to claim 1, characterized in that: The plurality of sealing frames are arranged in a one-to-one correspondence with the exhaust slots, and the plurality of exhaust slots and sealing frames are arranged in a circular shape around the circumferential surface of the second guide air cylinder in a state of equidistant sequence.

8. A transformer for power transmission and distribution according to claim 1, characterized in that: The inner cavity of the second guide air duct is provided with a plurality of sealing plates, the plurality of sealing frames have the same curvature as the sealing plates, and the plurality of sealing plates are inserted into the interior of the sealing frames under normal conditions.

9. A transformer for power transmission and distribution according to claim 1, characterized in that: The inner cavity of the second guide air cylinder is fixedly installed with a positioning sleeve arranged in a horizontal state, one end of the positioning sleeve is rotatably connected to an electric threaded screw, the outer wall of the electric threaded screw is provided with a plurality of first guide frames arranged in an inclined state, and the outer wall of the positioning sleeve is hinged with a plurality of second guide frames arranged in an inclined state, wherein each of the first guide frames and a corresponding second guide frame are hinged on the inner wall of the sealing frame.

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