Dry-type traction rectifier transformer

Abstract

The present application relates to the field of transformer, especially to a dry type traction rectifier transformer, which comprises a core, a plurality of low-voltage windings are sleeved on the outer periphery of the middle part of the core, high-voltage windings are arranged on the outer side of the low-voltage windings, a fixing ring is arranged between the low-voltage windings and the high-voltage windings, a fixing cover is fixedly connected to the top of the fixing ring, a rotating impeller is rotatably connected to the inside of the fixing cover, a through pipe is fixedly connected to the front and rear sides of the outer periphery of the fixing cover, a connecting pipe is fixedly connected to one side of the through pipe, a communication valve and a flow valve are installed on the connecting pipe, a ring pipe is fixedly connected to the end of the connecting pipe away from the through pipe, the ring pipe is arranged at the bottom of the fixing ring, and a plurality of evenly distributed telescopic pipes are fixedly connected to the top of the ring pipe, the present application can dynamically adjust the height of the ventilation plate and the air outlet range through the design of the corrugated section of the telescopic pipe and the ventilation plate and the real-time detection of the winding temperature by the temperature sensor.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of transformers, in particular to a dry traction rectifier transformer. BACKGROUND

[0002] In the current transformer technology field, winding heat dissipation and dust removal face many challenges. In the traditional transformer heat dissipation mode, air cooling relies on shell heat dissipation, which is easily affected by dust accumulation, greatly weakening the heat dissipation effect. Especially, the ventilation gap reserved between the low-voltage winding and the high-voltage winding often has floating dust attached, which is difficult to clean. Moreover, the air flow distribution is often uneven during heat dissipation, and there are heat dissipation dead angles, especially at the top of the coil. Due to structural limitations, the air flow is difficult to reach, resulting in poor heat dissipation. In terms of dust removal, the existing dust removal devices rely on wind power and are powerless against dust firmly adhered to the surface of the transformer. In addition, during voltage regulation tapping operation, the winding of the dry-type transformer may have an uneven heat distribution, with the winding of a certain tapping section (such as the tapping winding involved in voltage regulation) having a higher temperature than other areas. The contact part of the tapping switch (the connection point with the winding) is locally overheated. In extreme cases, the overall heat dissipation path of the winding is disturbed after the tapping switch is switched, resulting in local heat accumulation. The traditional heat dissipation system cannot adjust the heat dissipation intensity in real time according to the winding temperature. The heat dissipation capacity decreases significantly in high-temperature environments, and cannot meet the demand for efficient and stable operation of the transformer. These problems seriously restrict the performance and service life of the transformer, and an innovative technical solution is needed to break through the difficulties and achieve overall improvement in heat dissipation and dust removal effect. Therefore, we propose a dry traction rectifier transformer to solve the above-mentioned problems. SUMMARY

[0003] The present application relates to the field of transformers, in particular to a dry traction rectifier transformer.

[0004] In order to achieve the above object, the technical scheme adopted by the present application is as follows: a dry-type traction rectifier transformer, comprising a core, a plurality of low-voltage windings are sleeved on the outer periphery of the middle part of the core, high-voltage windings are arranged on the outer side of the low-voltage windings, a fixing ring is arranged between the low-voltage windings and the high-voltage windings at the lower part, a fixing cover is fixedly connected to the top of the fixing ring, a rotating impeller is rotatably connected to the inside of the fixing cover, a through pipe is fixedly connected to the front and rear sides of the outer periphery of the fixing cover, a connecting pipe is fixedly connected to one side of the through pipe, a communication valve and a flow valve are installed on the connecting pipe, a ring pipe is fixedly connected to the end of the connecting pipe away from the through pipe, the ring pipe is arranged at the bottom of the fixing ring, a plurality of telescopic pipes are fixedly connected to the top of the ring pipe, the top of the telescopic pipe penetrates the fixing ring, a top ring is fixedly connected to the top of the telescopic pipe, a rotating ring is rotatably connected to the outer periphery of the top ring, a plurality of temperature sensors are fixedly connected to the outer periphery of the rotating ring, the temperature sensors are electrically connected to the communication valve and the flow valve, a plurality of fixing rods are fixedly connected to the bottom of the top ring, a fixing block is fixedly connected to the bottom of the fixing rod, a ventilation plate is fixedly connected to the end of the fixing block away from the fixing rod, a corrugated section is arranged in the middle of the ventilation plate, a gas outlet is arranged on the both sides of the end of the ventilation plate, a plurality of movable rods are installed on the inner side of the ventilation plate, a plurality of mounting columns are fixedly connected to the middle of the movable rod, a storage bag is fixedly connected to the both sides of the end of the mounting column, and the storage bag is arranged on the inner side of the gas outlet.

[0005] Preferably, a top frame is installed on the front and rear sides of the upper part of the core, a bottom frame is installed on the front and rear sides of the lower part of the core, a support frame is installed on the bottom of the bottom frame, and a fan is installed on the side of the bottom frame away from the core.

[0006] Preferably, a plurality of connecting ports are arranged on the middle of one side of the high-voltage winding, the high-voltage windings are connected by connecting rods two and connecting rods one respectively, and a plurality of terminal pieces are installed on the top of the low-voltage winding.

[0007] Preferably, a plurality of rotating frames are fixedly connected to the top of the rotating impeller, the rotating frames penetrate the top of the rotating impeller, and a plurality of through holes are arranged on the front and rear parts of the both sides of the rotating frame.

[0008] Preferably, the gas outlets are arranged obliquely, a gas pipe is fixedly connected to the bottom of the ventilation plate, and the bottom of the gas pipe penetrates the top of the rotating impeller.

[0009] Preferably, the middle part of the rotating frame is rotationally connected with a reciprocating threaded rod, the bottom of the reciprocating threaded rod penetrates the top of the rotating impeller, the bottom of the reciprocating threaded rod is rotationally connected with the rotating impeller, the lower part of the outer periphery of the reciprocating threaded rod is fixedly connected with a gear, the outer periphery of the gear is meshingly connected with a gear ring, and the gear ring is fixedly connected to the middle part of the inner side wall of the fixed cover.

[0010] Preferably, the top of the fixed cover is provided with an annular groove, and the rotating frame and the rotating impeller are arranged inside the annular groove.

[0011] Preferably, the upper part of the outer periphery of the reciprocating threaded rod is threadedly connected with a threaded block, the middle part of the outer periphery of the threaded block is fixedly connected with a connecting piece, and the end of the connecting piece away from the threaded block is fixedly connected with a piston block.

[0012] Preferably, the middle part of the rotating frame is rotationally connected with a reciprocating threaded rod, the bottom of the reciprocating threaded rod penetrates the top of the rotating impeller, the bottom of the reciprocating threaded rod is rotationally connected with the rotating impeller, the lower part of the outer periphery of the reciprocating threaded rod is fixedly connected with a gear, the outer periphery of the gear is meshingly connected with a gear ring, and the gear ring is fixedly connected to the middle part of the inner side wall of the fixed cover.

[0013] Preferably, the middle part of the rotating frame is rotationally connected with a reciprocating threaded rod, the bottom of the reciprocating threaded rod penetrates the top of the rotating impeller, the bottom of the reciprocating threaded rod is rotationally connected with the rotating impeller, the lower part of the outer periphery of the reciprocating threaded rod is fixedly connected with a gear, the outer periphery of the gear is meshingly connected with a gear ring, and the gear ring is fixedly connected to the middle part of the inner side wall of the fixed cover.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. The present application solves the problem of dust accumulation at the lower part of the winding and low heat dissipation efficiency in the prior art. The reciprocating threaded rod drives the threaded block to move up and down, the piston block is compressed when it moves down, the gas intensity of the lower through hole is increased, and the lower part of the winding is cleaned. The continuous lifting and lowering of the piston block makes the gas intensity change dynamically, which avoids the continuous impact of fixed intensity airflow on the winding and fully covers the cleaning needs of different areas, and the practicality is improved significantly.

[0016] 2. Compared with the prior art, the present application solves the problem of single airflow dust cleaning and stubborn dust removal. The threaded block drives the connecting piece to move the flap, and the cleaning brush directly cleans the stubborn deposits on the winding side wall. The rotating airflow of the rotating frame and the rotating airflow form a synergistic effect of “active cleaning + airflow flushing”. At the same time, the reciprocating threaded rod drives the guide vane to rotate to form an upward cyclone, which can concentrate and guide the floating dust generated during cleaning, avoid secondary pollution, and ensure that the winding always maintains an efficient heat dissipation channel, solving the problem of “incomplete dust cleaning leading to heat dissipation efficiency decay” in traditional heat dissipation devices.

[0017] 3、 The present application aims at the problem that the ventilation structure is fixed in the prior art, it is difficult to adapt to the heat dissipation demand of different tapping sections of the winding, and it is easy to cause excessive temperature difference, through the design of the bellows section of the telescopic pipe and the ventilation plate, in combination with the real-time detection of the winding temperature by the temperature sensor, the height of the ventilation plate and the air outlet range can be dynamically adjusted: the airflow drives the telescopic pipe to expand through the connecting pipe, the ventilation plate is jacked up; the telescopic pipe is controlled to shrink through the flow valve, the actual working section of the winding is accurately matched, the uniform distribution of the winding heat is ensured, and the risk of equipment failure caused by excessive temperature difference of the tapping section is effectively avoided.

[0018] 4、 The present application aims at the problem that the ventilation structure is fixed in the prior art, it is difficult to adapt to the heat dissipation demand of different tapping sections of the winding, and it is easy to cause excessive temperature difference, through the design of the bellows section of the telescopic pipe and the ventilation plate, in combination with the real-time detection of the winding temperature by the temperature sensor, the height of the ventilation plate and the air outlet range can be dynamically adjusted: the airflow drives the telescopic pipe to expand through the connecting pipe, the ventilation plate is jacked up; the telescopic pipe is controlled to shrink through the flow valve, the actual working section of the winding is accurately matched, the uniform distribution of the winding heat is ensured, and the risk of equipment failure caused by excessive temperature difference of the tapping section is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of a dry-type traction rectifier transformer of the present application;

[0020] Figure 2 It is a partial structure schematic view between the low-voltage winding and the high-voltage winding of a dry-type traction rectifier transformer of the present application;

[0021] Figure 3 It is a partial structure schematic view between the low-voltage winding and the high-voltage winding of a dry-type traction rectifier transformer of the present application;

[0022] Figure 4 It is a partial structure schematic view at the fixed cover of a dry-type traction rectifier transformer of the present application;

[0023] Figure 5 It is a partial structure schematic view at the fixed ring of a dry-type traction rectifier transformer of the present application;

[0024] Figure 6 It is a partial structure schematic view at the ventilation plate of a dry-type traction rectifier transformer of the present application;

[0025] Figure 7 It is a combined structure schematic view at the rotating impeller and the fixed cover of a dry-type traction rectifier transformer of the present application;

[0026] Figure 8 It is a partial structure schematic view at the rotating impeller of a dry-type traction rectifier transformer of the present application;

[0027] Figure 9A partial structure diagram of a threaded block of the dry-type traction rectifier transformer of the present application;

[0028] Figure 10 A partial structure diagram of an expansion pipe of the dry-type traction rectifier transformer of the present application;

[0029] Figure 11 A partial structure diagram of a storage bag of the dry-type traction rectifier transformer of the present application.

[0030] 101, support frame; 102, fan; 103, connecting rod one; 104, connecting port; 105, high-voltage winding; 106, connecting rod two; 107, top frame; 108, iron core; 109, low-voltage winding; 110, terminal lug; 111, rotating ring; 112, ventilation plate; 113, fixed cover; 114, bottom frame; 115, guide vane; 116, rotating frame; 117, through pipe; 118, expansion pipe; 119, connecting pipe; 120, corrugated section; 121, fixed ring; 122, air outlet; 123, storage bag; 124, ring pipe; 125, mounting column; 126, movable rod; 127, top ring; 128, ring groove; 129, flap; 130, cleaning brush; 131, air pipe; 132, rotating vane; 133, tooth ring; 134, reciprocating threaded rod; 135, gear; 136, straight rod; 137, through hole; 138, piston block; 139, connecting sheet; 140, threaded block; 141, fixed shaft; 142, sliding groove; 143, fixed rod; 144, fixed block. DETAILED DESCRIPTION

[0031] The following description is provided to enable any person skilled in the art to practice the present application. The preferred embodiments of the present application described below are only examples of the present application and other obvious variants can be thought of by those skilled in the art.

[0032] As Figures 1-11The shown dry traction rectifier transformer includes a core 108, a plurality of low-voltage windings 109 are sleeved on the outer periphery of the middle part of the core 108, a high-voltage winding 105 is arranged outside each low-voltage winding 109, a fixing ring 121 is arranged between each low-voltage winding 109 and the high-voltage winding 105, a fixing cover 113 is fixedly connected to the top of each fixing ring 121, a rotating impeller 132 is rotatably connected inside the fixing cover 113, a through pipe 117 is fixedly connected to the front and rear sides of the outer periphery of the fixing cover 113, a connecting pipe 119 is fixedly connected to one side of the through pipe 117, a communication valve and a flow valve are mounted on the connecting pipe 119, an annular pipe 124 is fixedly connected to the end of the connecting pipe 119 away from the through pipe 117, the annular pipe 124 is arranged at the bottom of the fixing ring 121, a plurality of telescopic pipes 118 are fixedly connected to the top of the annular pipe 124, the telescopic pipes 118 penetrate through the fixing ring 121, a top ring 127 is fixedly connected to the top of each telescopic pipe 118, a rotating ring 111 is rotatably connected to the outer periphery of the top ring 127, a plurality of temperature sensors are fixedly connected to the outer periphery of the rotating ring 111, and the temperature sensors are electrically connected with the communication valve and the flow valve.

[0033] Further, in specific implementation, air flow enters the inside of the ventilation plate 112 through the air pipe 131 and is sprayed out through each air outlet 122 distributed on both sides to achieve sufficient heat dissipation of the low-voltage windings 109 and the high-voltage windings 105, and the ventilation plate 112 as a whole can continue to stretch and compress through each corrugated section 120 arranged in the middle part of the ventilation plate 112. In actual use, when the air flow is discharged through the through pipe 117, part of the air flow is shunted into the inside of the telescopic pipe 118 through the communication valve on the connecting pipe 119, and the continuously entering air flow can expand the telescopic pipe 118, thereby lifting the top ring 127 and the rotating ring 111 to stretch the ventilation plate 112. By opening the flow valve, the flow of the inside of the connecting pipe 119 can be realized, so that the telescopic pipe 118 and the top ring 127 can slowly descend under the action of gravity and damping, thereby realizing the adjustment of the height and air outlet range of the ventilation plate 112. In actual use, the temperature sensors installed on the outer periphery of the rotating ring 111 can detect the temperature of the side walls of the low-voltage windings 109 and the high-voltage windings 105 on both sides, and when a significant change in temperature is detected, the flow valve and the communication valve are started or stopped to determine the height of the rotating ring 111 and the ventilation plate 112, so that targeted heat dissipation can be realized according to the actual participating winding section of the low-voltage windings 109 and the high-voltage windings 105, thereby keeping the heat of the windings uniform and avoiding excessive temperature difference between the winding sections, which is beneficial to actual use.

[0034] The top ring 127 is fixedly connected with a plurality of fixed rods 143 at the bottom, the fixed rods 143 are fixedly connected with fixed blocks 144 at the bottom, the fixed blocks 144 are fixedly connected with ventilation plates 112 away from the fixed rods 143, the ventilation plates 112 are provided with evenly distributed corrugated sections 120 in the middle, the ventilation plates 112 are provided with evenly distributed gas outlets 122 at the both sides, the ventilation plates 112 are provided with a plurality of movable rods 126 inside, the movable rods 126 are fixedly connected with a plurality of mounting columns 125 in the middle, the mounting columns 125 are fixedly connected with storage tanks 123 at the both sides, the storage tanks 123 are arranged inside the gas outlets 122, the gas outlets 122 are arranged obliquely, the ventilation plates 112 are fixedly connected with air pipes 131 at the bottom, and the air pipes 131 are penetrated through the top of rotating impellers 132;

[0035] Further, in specific implementation, the heat accumulated between the low-voltage winding 109 and the high-voltage winding 105 can be sensed by the heat-sensitive gas inside the storage tank 123. When the temperature between the low-voltage winding 109 and the high-voltage winding 105 is higher, the gas inside the storage tank 123 will expand, so that the storage tank 123 will be larger, thereby reducing the gas outlet area of the gas outlet 122, so that the flow rate of the gas flow is accelerated, thereby effectively accelerating the heat removal speed and improving the heat dissipation effect.

[0036] The iron core 108 is provided with top frames 107 on the upper front and back sides, the iron core 108 is provided with bottom frames 114 on the lower front and back sides, the bottom frames 114 are provided with support frames 101 at the bottom, the bottom frames 114 are provided with fans 102 away from the iron core 108, the air pipes 117 are fixedly connected with the output ends of the fans 102 away from the fixed covers 113, the high-voltage windings 105 are provided with a plurality of connecting ports 104 in the middle of one side, the high-voltage windings 105 are connected with the connecting rods two 106 and the connecting rods one 103, respectively, the low-voltage windings 109 are provided with a plurality of terminal pieces 110 at the top, the specific structure and wiring mode of the low-voltage windings 109 and the high-voltage windings 105 adopt the general mode in the prior art, the fixed covers 113 are provided with ring grooves 128 at the top, and the rotating frames 116 and the rotating impellers 132 are arranged inside the ring grooves 128;

[0037] Further, in specific implementation, people can realize the voltage conversion of alternating current through the transformer, which is conducive to the actual use. The fan 102 can realize the heat dissipation and ventilation of the transformer. In actual use, the airflow generated by the operation of the fan 102 can be output through the through pipe 117. The airflow can enter the inside of the fixed cover 113 through the through pipe 117. The airflow can drive the rotating impeller 132 inside the fixed cover 113 to rotate. The rotating impeller 132 can drive the upper rotating frame 116 and the air pipe 131 to rotate synchronously. The air pipe 131 can drive the rotating frame 116 to rotate. In this process, the gas entering the inside of the fixed cover 113 can enter the inside of the air pipe 131 and the rotating frame 116. The gas can be sprayed out through the through hole 137 after entering the inside of the rotating frame 116. The low-voltage winding 109 and the high-voltage winding 105 on both sides of the rotating frame 116 can be blown and cleaned and cooled. The rotating cooling of the rotating frame 116 can make the cooling airflow fully contact with the low-voltage winding 109 and the high-voltage winding 105, so as to clean the dust attached to the side wall between the low-voltage winding 109 and the guide vane 115, which is conducive to the realization.

[0038] Wherein, the rotating impeller 132 top is fixedly connected with a plurality of rotating frames 116, the rotating frame 116 penetrates the rotating impeller 132 top, the rotating frame 116 front and rear two sides are evenly provided with through holes 137, the rotating frame 116 middle part is rotatably connected with a reciprocating screw rod 134, the reciprocating screw rod 134 bottom penetrates the rotating impeller 132 top, the reciprocating screw rod 134 bottom is rotatably connected with the rotating impeller 132, the reciprocating screw rod 134 outer periphery lower part is fixedly connected with a gear 135, the gear 135 outer periphery is meshingly connected with a gear ring 133, the gear ring 133 is fixedly connected to the fixed cover 113 inner side wall middle part, the reciprocating screw rod 134 outer periphery upper part is screwedly connected with a threaded block 140, the threaded block 140 outer periphery two sides middle part is fixedly connected with a connecting piece 139, the connecting piece 139 away from the threaded block 140 one end is fixedly connected with a piston block 138;

[0039] Further, in the specific implementation, when the impeller 132 rotates, the gear 135 is in continuous contact with the gear ring 133, and the meshing between the gear 135 and the gear ring 133 can make the gear 135 and the reciprocating threaded rod 134 rotate, and when the reciprocating threaded rod 134 rotates, the threaded block 140 is driven to reciprocate up and down, and in this process, the threaded block 140 can drive the piston block 138 to reciprocate up and down synchronously through the connecting piece 139, and in the process of reciprocation of the piston block 138, the piston block 138 can adjust the space at the bottom of the rotating frame 116, and when the piston block 138 moves downward, the space at the bottom of the rotating frame 116 is compressed, thereby effectively enhancing the air outlet strength of the through hole 137 at the bottom of the rotating frame 116, so as to realize the key cleaning of the dust accumulated between the low-voltage winding 109 and the high-voltage winding 105. Through the continuous up-and-down movement of the piston block 138, the air outlet strength on both sides of the rotating frame 116 presents a wave-shaped change, which is beneficial to actual use.

[0040] Wherein, the rotating frame 116 is provided with a sliding groove 142 on both sides of the middle part, the connecting piece 139 is penetrated through the sliding groove 142, and the piston block 138 is slidably connected inside the rotating frame 116; the reciprocating threaded rod 134 is fixedly connected with a guide vane 115 at the top, and the guide vane 115 is arranged at the top of the rotating frame 116; a plurality of straight rods 136 are fixedly connected on both sides of the middle part of the rotating frame 116, and the straight rod 136 is fixedly connected with a plurality of evenly distributed fixed shafts 141 on one side; the fixed shaft 141 is fixedly connected with the rotating frame 116 away from the straight rod 136; the fixed shaft 141 is rotatably connected with a flap 129 outside; and the flap 129 is fixedly connected with a cleaning brush 130 on one side.

[0041] Further, in the specific implementation, in the process of up-and-down movement of the piston block 138, the connecting piece 139 on both sides of the threaded block 140 is in continuous contact with the end of the flap 129 on both sides, so as to drive the flap 129 to swing around the fixed shaft 141, and in this process, the cleaning brush 130 at the end of the flap 129 can clean the stubborn deposits on the side walls of the low-voltage winding 109 and the high-voltage winding 105 on both sides, and in cooperation with the rotating frame 116, the low-voltage winding 109 and the high-voltage winding 105 can maintain the best heat dissipation state, so that the transformer can always maintain the highest heat dissipation efficiency. The rotation of the reciprocating threaded rod 134 can drive the guide vane 115 to rotate synchronously, the rotation of the guide vane 115 can disturb the airflow, form an upward cyclone, and attract and guide the dust cleaned between the low-voltage winding 109 and the high-voltage winding 105 upward, which is beneficial to actual use.

[0042] Working principle:

[0043] In actual use, people can achieve voltage conversion of alternating current through the transformer, which is conducive to actual use. The fan 102 can achieve heat dissipation and ventilation of the transformer. In actual use, the airflow generated by the operation of the fan 102 is output through the pipe 117. The airflow enters the inside of the fixed cover 113 through the pipe 117. The airflow pushes the rotating impeller 132 inside the fixed cover 113 to rotate. The rotating impeller 132 can drive the upper rotating frame 116 and the air pipe 131 to rotate synchronously. The air pipe 131 can drive the rotating frame 116 to rotate synchronously. In this process, the gas entering the inside of the fixed cover 113 enters the inside of the air pipe 131 and the rotating frame 116. The gas is sprayed out through the through hole 137 after entering the inside of the rotating frame 116, which realizes the blowing and cleaning and heat dissipation of the low-voltage winding 109 and the high-voltage winding 105 on both sides of the rotating frame 116. The rotating heat dissipation of the rotating frame 116 can make the heat dissipation airflow fully contact the low-voltage winding 109 and the high-voltage winding 105, so as to clean the dust attached to the side wall between the low-voltage winding 109 and the high-voltage winding 105, which is conducive to the realization. When the rotating impeller 132 rotates, it can continuously contact the gear ring 133 through the gear 135. The meshing between the gear 135 and the gear ring 133 can make the gear 135 and the reciprocating threaded rod 134 rotate. When the reciprocating threaded rod 134 rotates, it can drive the threaded block 140 to reciprocatingly rise and fall. In this process, the threaded block 140 can drive the piston block 138 to rise and fall synchronously through the connecting piece 139. In the process of rising and falling of the piston block 138, the piston block 138 can adjust the space in the bottom of the rotating frame 116. When the piston block 138 moves downward, it can compress the space in the bottom of the rotating frame 116, so as to effectively enhance the air outlet strength of the through hole 137 in the bottom of the rotating frame 116, thereby realizing the key cleaning of the dust accumulated between the low-voltage winding 109 and the high-voltage winding 105. Through the continuous up-and-down movement of the piston block 138, the air outlet strength of the rotating frame 116 on both sides presents a wave-shaped change, which is conducive to actual use. Further, in the process of up-and-down movement of the piston block 138, the connecting pieces 139 on both sides of the threaded block 140 can continuously contact the ends of the flaps 129 on both sides, so as to drive the flaps 129 to swing around the fixed shaft 141. In this process, the stubborn deposits on the side walls of the low-voltage winding 109 and the high-voltage winding 105 on both sides can be cleaned through the cleaning brushes 130 at the ends of the flaps 129. In cooperation with the rotating frame 116, the low-voltage winding 109 and the high-voltage winding 105 can maintain the best heat dissipation state, so that the transformer can always maintain the highest heat dissipation efficiency. The rotation of the reciprocating threaded rod 134 can drive the guide vane 115 to rotate synchronously. The rotation of the guide vane 115 can disturb the airflow to form an upward cyclone to attract and guide the dust cleaned between the low-voltage winding 109 and the high-voltage winding 105 upwards, which is conducive to actual use. At the same time,The air flow enters into the ventilation plate 112 through the ventilation pipe 131 and is sprayed through each air outlet 122 distributed on both sides to achieve sufficient heat dissipation of the low-voltage winding 109 and the high-voltage winding 105. The ventilation plate 112 as a whole can continue to stretch and compress through the corrugated segments 120 arranged in the middle of the ventilation plate 112. In actual use, when the air flow is discharged through the through pipe 117, part of the air flow will be shunted into the telescopic pipe 118 through the communication valve on the connecting pipe 119. The continuously entering air flow will expand the telescopic pipe 118, thereby lifting the top ring 127 and the rotating ring 111 to stretch the ventilation plate 112. By opening the flow valve, the flow in the connecting pipe 119 can be discharged, so that the telescopic pipe 118 and the top ring 127 can slowly descend under the action of gravity and damping, thereby adjusting the height and air outlet range of the ventilation plate 112. In actual use, the temperature sensor installed on the outer periphery of the rotating ring 111 can detect the temperature of the side walls of the low-voltage winding 109 and the high-voltage winding 105 on both sides. When a significant temperature change is detected, the flow valve and the communication valve are started or closed to determine the height of the rotating ring 111 and the ventilation plate 112, so that targeted heat dissipation can be performed according to the actual participating winding section of the low-voltage winding 109 and the high-voltage winding 105, thereby maintaining the uniformity of the heat of the winding and avoiding excessive temperature difference between the winding sections, which is beneficial to actual use. In this process, the heat-sensitive gas in the storage tank 123 can sense the heat temperature accumulated between the low-voltage winding 109 and the high-voltage winding 105. When the temperature between the low-voltage winding 109 and the high-voltage winding 105 is higher, the gas in the storage tank 123 will expand, thereby making the storage tank 123 larger, so as to reduce the air outlet area of the air outlet 122, so that the flow rate of the air flow is accelerated, thereby effectively accelerating the heat removal speed and improving the heat dissipation effect.

[0044] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. Dry-type traction rectifier transformer comprising a core (108), characterized in that: The middle outer periphery of the iron core (108) is sleeved with a plurality of low-voltage windings (109), the outer side of the low-voltage winding (109) is provided with a high-voltage winding (105), the lower part between the low-voltage winding (109) and the high-voltage winding (105) is provided with a fixing ring (121), the top of the fixing ring (121) is fixedly connected with a fixing cover (113), the inside of the fixing cover (113) is rotatably connected with a rotating impeller (132), the front and rear sides of the outer periphery of the fixing cover (113) are fixedly connected with a through pipe (117), one side of the through pipe (117) is fixedly connected with a connecting pipe (119), the connecting pipe (119) is provided with a communication valve and a flow valve, one end of the connecting pipe (119) away from the through pipe (117) is fixedly connected with a ring pipe (124), the ring pipe (124) is arranged at the bottom of the fixing ring (121), the top of the ring pipe (124) is fixedly connected with uniformly distributed telescopic pipes (118), the top of the telescopic pipe (118) penetrates through the fixing ring (121), the top of the telescopic pipe (118) is fixedly connected with a top ring (127), the outer periphery of the top ring (127) is rotatably connected with a rotating ring (111), the outer periphery of the rotating ring (111) is fixedly connected with a plurality of temperature sensors, the temperature sensors are electrically connected with the communication valve and the flow valve, the bottom of the top ring (127) is fixedly connected with a plurality of fixing rods (143), the bottom of the fixing rod (143) is fixedly connected with a fixing block (144), one end of the fixing block (144) away from the fixing rod (143) is fixedly connected with a ventilation plate (112), the middle of the ventilation plate (112) is provided with uniformly distributed corrugated sections (120), the both side end portions of the ventilation plate (112) are provided with uniformly distributed air outlets (122), the inner side of the ventilation plate (112) is provided with a plurality of movable rods (126), the middle of the movable rod (126) is fixedly connected with a plurality of mounting columns (125), the both side end portions of the mounting column (125) are fixedly connected with storage bags (123), the storage bag (123) is arranged on the inner side of the air outlet (122).

2. A dry-type traction rectifier transformer according to claim 1, characterized in that: The top of the iron core (108) is provided with a top frame (107), the bottom of the iron core (108) is provided with a bottom frame (114), the bottom of the bottom frame (114) is provided with a support frame (101), one side of the bottom frame (114) away from the iron core (108) is provided with a fan (102), one end of the through pipe (117) away from the fixing cover (113) is fixedly connected with the output end of the fan (102).

3. A dry-type traction rectifier transformer according to claim 1, characterized in that: The middle of one side of the high-voltage winding (105) is provided with a plurality of connecting ports (104), each high-voltage winding (105) is connected with a connecting rod two (106) and a connecting rod one (103), respectively, the top of the low-voltage winding (109) is provided with a plurality of terminal pieces (110).

4. A dry-type traction rectifier transformer according to claim 1, characterized in that: The rotating impeller (132) top is fixedly connected with a plurality of rotating frames (116), the rotating frame (116) penetrates the rotating impeller (132) top, and the rotating frame (116) front and rear sides are uniformly provided with through holes (137).

5. A dry-type traction rectifier transformer according to claim 1, characterized in that: The air outlet (122) is inclined, the ventilation plate (112) bottom is fixedly connected with an air pipe (131), and the air pipe (131) bottom penetrates the rotating impeller (132) top.

6. A dry-type traction rectifier transformer according to claim 4, characterized in that: The rotating frame (116) middle part is rotatably connected with a reciprocating threaded rod (134), the reciprocating threaded rod (134) bottom penetrates the rotating impeller (132) top, the reciprocating threaded rod (134) bottom is rotatably connected with the rotating impeller (132), the reciprocating threaded rod (134) outer periphery lower part is fixedly connected with a gear (135), the gear (135) outer periphery is meshed with a gear ring (133), and the gear ring (133) is fixedly connected to the fixed cover (113) inner side wall middle part.

7. A dry-type traction rectifier transformer according to claim 6, characterized in that: The fixed cover (113) top is provided with a ring groove (128), and the rotating frame (116) and the rotating impeller (132) are arranged in the ring groove (128) inner side.

8. A dry-type traction rectifier transformer according to claim 6, characterized in that: The reciprocating threaded rod (134) outer periphery upper part is threadedly connected with a threaded block (140), the threaded block (140) outer periphery two sides middle part is fixedly connected with a connecting piece (139), and the connecting piece (139) end away from the threaded block (140) is fixedly connected with a piston block (138).

9. A dry-type traction rectifier transformer according to claim 8, characterized in that: The rotating frame (116) middle part two sides are provided with a sliding groove (142), the connecting piece (139) end penetrates the sliding groove (142), the piston block (138) is slidably connected in the rotating frame (116) inside, the reciprocating threaded rod (134) top is fixedly connected with a guide vane (115), and the guide vane (115) is arranged in the rotating frame (116) top middle side.

10. A dry-type traction rectifier transformer according to claim 9, characterized in that: The rotating frame (116) middle part two sides are fixedly connected with a plurality of straight rods (136), the straight rod (136) one side is fixedly connected with uniformly distributed fixed shafts (141), the fixed shaft (141) end away from the straight rod (136) is fixedly connected with the rotating frame (116), and the fixed shaft (141) outer periphery is rotatably connected with a flap (129), the flap (129) one side end is fixedly connected with a cleaning brush (130).

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