CN112530667B

CN112530667B - Low-noise dry-type transformer

Info

Publication number: CN112530667B
Application number: CN202011280396.1A
Authority: CN
Inventors: 钱国锋; 倪超; 郦齐华; 吴江南
Original assignee: Zhejiang Detong Transformer Co ltd
Current assignee: Zhejiang Detong Transformer Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2022-01-11
Anticipated expiration: 2040-11-16
Also published as: CN112530667A

Abstract

The invention discloses a low-noise dry-type transformer, which comprises a transformer box, two fixed grooves arranged on the transformer box, a first mounting plate arranged on the fixed grooves, a second mounting plate arranged on the fixed grooves, three coil windings connected to the first mounting plate and the second mounting plate, two sound insulation devices arranged on the transformer box, two driving devices used for connecting the two sound insulation devices, and a ventilation device arranged on the transformer box, wherein the three coil windings are connected with the first mounting plate and the second mounting plate; the sound insulation device comprises a sound insulation box arranged on one side of the transformation box and two sound insulation assemblies arranged on the sound insulation box; the sound insulation assembly comprises a movable plate arranged on the sound insulation box, a plurality of folding plates arranged on the movable plate, and a plurality of sound insulation pieces arranged on the folding plates respectively. The invention increases the sound insulation effect of the transformer box and ensures the heat dissipation effect of the transformer box.

Description

Low-noise dry-type transformer

Technical Field

The invention belongs to the field of transformers, and particularly relates to a low-noise dry-type transformer.

Background

Dry-type transformers are widely used in local lighting, high-rise buildings, airports, mechanical equipment in wharfs and the like, and simply, dry-type transformers refer to transformers in which iron cores and windings are not immersed in insulating oil.

The cooling mode of the dry-type transformer is divided into natural air cooling and forced air cooling, wherein the forced air cooling is used for the load operation of the transformer; the existing dry-type transformer generally has certain noise when in load operation, and the dry-type transformer partially wrapped with soundproof parts such as soundproof cotton and the like has poor heat dissipation effect when in daily use.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the low-noise dry-type transformer which can increase the sound insulation effect of the transformer and ensure the heat dissipation effect of the transformer.

In order to achieve the purpose, the invention adopts the following technical scheme: a low-noise dry-type transformer comprises a transformer box, two fixing grooves arranged on the transformer box, a first mounting plate arranged on the fixing grooves, a second mounting plate arranged on the fixing grooves, three coil windings connected to the first mounting plate and the second mounting plate, two sound insulation devices arranged on the transformer box, two driving devices used for connecting the two sound insulation devices, and a ventilation device arranged on the transformer box; the sound insulation device comprises a sound insulation box arranged on one side of the transformation box and two sound insulation assemblies arranged on the sound insulation box; the sound insulation assembly comprises a moving plate arranged on the sound insulation box, a plurality of folding plates arranged on the moving plate, and a plurality of sound insulation pieces respectively arranged on the folding plates; the first mounting panel can for the fixed slot removes, the second mounting panel can for the fixed slot removes, two noise insulation structure are the same and are the symmetry setting, two drive arrangement structure are the same and are the symmetry setting, two syllable-dividing subassembly structures are the same and are the symmetry setting, the folded sheet that is closest to the movable plate among a plurality of folded sheets can for the movable plate rotates, be rotatable setting between a plurality of folded sheets.

According to the invention, through the arrangement of the folding plates, when the transformer is used at ordinary times, the folding plates can be in a folding state, so that the folding plates and the movable plate can not surround the transformer box, and further the heat dissipation effect of the transformer in use at ordinary times is ensured.

The sound insulation device also comprises an upper baffle plate and a groove, wherein the upper baffle plate is used for connecting two moving plates in the two sound insulation assemblies; the sound insulation assembly further comprises a moving track arranged on the sound insulation box, a moving block used for connecting the moving track with a folding plate which is farthest away from the moving plate in the plurality of folding plates, a first elastic piece used for connecting the moving block with the moving track, and a guide rod arranged on the moving track; the upper baffle plate can move relative to the sound insulation box, two grooves are in a circular structure when two upper baffle plates in the two sound insulation devices are attached, the moving block can move relative to the moving track, the guide rod penetrates through the moving block, and the moving block can move relative to the guide rod; through the arrangement of the upper baffle and the grooves, when the movable plates drive the folding plates to wrap the side edges of the transformer box, the upper baffle can move under the drive of the two movable plates, so that the upper baffle wraps the upper part of the transformer box, the overall sound insulation effect of the transformer box is improved, and meanwhile, after the upper baffle insulates the upper part of the transformer box, the two grooves can be in a circular structure when being closed, so that the transformer can ventilate from the two grooves when running under load, and the condition that the heat dissipation of the transformer is poor when running under load is avoided; through the setting of movable block, after the folded sheet extends under the drive of movable plate, the movable plate continues to stimulate the folded sheet and moves, make the folded sheet of one side drive the movable block and move along moving the track, lead the movable block through the guide bar simultaneously, stability when having increased the folded sheet and moving, after the movable block moves to moving orbital other end simultaneously, one side of folded sheet can be parallel to each other with the side of transformer case, reduced the used material of folded sheet and sound insulation piece when having guaranteed the syllable-dividing effect of folded sheet to the transformer, reduced the cost of manufacture of equipment.

The driving device comprises two sliding grooves arranged on two moving plates in the two sound insulation devices, two clamping blocks respectively arranged on the two sliding grooves, a first transmission assembly used for connecting the two sliding grooves, and a second transmission assembly used for connecting the two sliding grooves; the first transmission assembly comprises a plurality of transmission blocks arranged on the two sliding grooves, a plurality of first connecting rods respectively used for connecting the plurality of transmission blocks, a plurality of second connecting rods respectively used for connecting the plurality of transmission blocks, and a plurality of second elastic pieces respectively used for connecting the plurality of transmission blocks; the fixture block can move relative to the sliding chute, the first transmission assembly and the second transmission assembly are identical in structure and symmetrically arranged, the first connecting rod can rotate relative to the transmission block, the second connecting rod can rotate relative to the transmission block, the first connecting rod and the second connecting rod are arranged in a staggered mode, the first connecting rod and the second connecting rod are connected in a hinged mode, two transmission blocks and sliding chutes which are positioned at the bottommost parts of the two sliding chutes in the first transmission assembly are fixed with each other, two transmission blocks and sliding chutes which are positioned at the uppermost parts of the two sliding chutes in the second transmission assembly are fixed with each other, and the rest transmission blocks can move relative to the sliding chutes; through the arrangement of the first connecting rod and the second connecting rod, when the sound insulation operation is required to be carried out on the transformer box, the first connecting rod and the second connecting rod in the first transmission assembly are pushed to move upwards, so that the first connecting rod and the second connecting rod drive the transmission blocks in the two sliding chutes to move upwards, meanwhile, through the hinged connection between the first connecting rods and the second connecting rods, the first connecting rods and the second connecting rods synchronously move upwards, further, the first connecting rods and the second connecting rods are changed into a vertical state from a state close to a parallel state, so that the two movable doors are pulled to be close to each other and finally folded, and meanwhile, the upper parts and the lower parts of the two movable doors are driven simultaneously by matching with the use of the second transmission assembly, the stability of the movable plates during moving is increased, and the overall structural strength between the two movable plates is increased, the condition that the movable plate is inclined when moving or is inclined after being used for a long time is avoided, and the service life of the equipment is prolonged; through the setting of fixture block, when needs installation or dismantlement driving block, can take out the fixture block from the spout, made things convenient for the installation or the dismantlement operation of driving block.

The driving device further comprises two first telescopic rods arranged on two transmission blocks closest to the second transmission assembly in the first transmission assembly, two second telescopic rods arranged on the plurality of rotating blocks in the second transmission assembly in a penetrating manner and positioned at two sides of the second transmission assembly, and an air inlet assembly arranged on the moving plate; the air inlet assembly comprises two guide grooves arranged on the movable plate, a first air inlet pipe arranged on the movable plate, a fourth telescopic rod sleeved on the first air inlet pipe, a first air inlet hole arranged on the first air inlet pipe, two guide columns arranged on the movable plate correspondingly arranged on the other side, a second air inlet pipe arranged on the movable plate correspondingly arranged on the other side, a second air inlet hole arranged on the second air inlet pipe, a baffle ring arranged on the second air inlet pipe, a sixth elastic piece used for connecting the baffle ring and the second air inlet pipe, and a plurality of rotating cover plates arranged at one end of the second air inlet pipe; the first telescopic rod and the second telescopic rod are arranged in a matched mode, one end of the second telescopic rod is connected with a transmission block at the lowest part in the second transmission assembly, the guide post and the guide groove are arranged in a matched mode, a spring is arranged in the fourth telescopic rod, the first air inlet hole is of a T-shaped structure, the baffle ring can move relative to the second air inlet pipe, the rotating cover plate can rotate relative to the second air inlet pipe, a torsional spring is arranged in the rotating cover plate, one end of the torsional spring is connected to the rotating cover plate, the other end of the torsional spring is connected to the second air inlet pipe, the first air inlet pipe is communicated with the sound insulation piece, and the second air inlet pipe is communicated with the sound insulation piece; through the arrangement of the first telescopic rod and the second telescopic rod, when the transmission block in the first transmission assembly moves upwards, the first telescopic rod is driven to contract, the gas in the first telescopic rod enters the second telescopic rod through the matching between the first telescopic rod and the second telescopic rod and drives the second telescopic rod to extend, so that the second telescopic rod drives the transmission block at the lowest part in the second transmission assembly to move, and then the plurality of first connecting rods and the plurality of second connecting rods in the second transmission assembly are driven to move, and the synchronism between the first transmission assembly and the second transmission assembly is increased; through the arrangement of the air inlet assembly, when the two moving plates are close to each other and are closed, the first air inlet pipe and the second air inlet pipe are in contact with each other, so that the second air inlet pipe pushes the fourth telescopic rod to contract, the first air inlet hole is exposed, meanwhile, the first air inlet pipe pushes the plurality of rotating cover plates to enter the second air inlet pipe, then, the first air inlet pipe continuously moves along the second air inlet pipe, then, the first air inlet pipe contacts and pushes the baffle ring, the baffle ring moves to expose the second air inlet hole, then, the first air inlet hole and the second air inlet hole are overlapped with each other, so that the first air inlet pipe and the second air inlet pipe can be inflated by the external air pipe, the sound insulation effect can be generated after the sound insulation piece is inflated, the sound insulation effect of the equipment is increased, meanwhile, the second air inlet pipe can be shielded and protected by the baffle ring and the rotating cover plates when the air is not required to be inflated, and the situation that excessive dust and other impurities enter the second air inlet pipe is avoided, the cleaning effect in the second air inlet pipe is ensured; through the setting of guide way and guide post, when two movable plates were close to each other, can lead to first intake pipe and second intake pipe through guide way and guide post, avoided first intake pipe and second intake pipe because do not aim at the damage that leads to, increased cooperation accuracy and stability between first intake pipe and the second intake pipe.

The ventilation device comprises a first ventilation opening arranged at the upper end of the transformer box, a filtering piece arranged on the first ventilation opening, a second ventilation opening arranged at the lower end of the transformer box, two electric tracks respectively arranged on the two sound insulation boxes, a lifting plate used for connecting the two electric tracks, a third ventilation opening arranged on the lifting plate, two through holes arranged on the lifting plate and a fan arranged on the third ventilation opening; the lifting plate can move relative to the electric track, and the third ventilation opening and the second ventilation opening are correspondingly arranged; through the arrangement of the lifting plate, when the transformer runs under load, the two electric tracks on the two sides are started to drive the lifting plate and the fan to lift upwards, then the fan props against the bottom of the transformer box, meanwhile, the second vent hole and the third vent hole are aligned with each other, the fan is started to rotate and blow air into the transformer box, meanwhile, heat flow in the transformer box is discharged from the first vent hole, and the heat dissipation effect of the transformer is improved; through the arrangement of the filtering piece, dust is prevented from entering the transformation box from the first vent, and the cleanness and tidiness of the interior of the transformation box are guaranteed.

The ventilation device also comprises two shielding assemblies arranged on the second ventilation opening; the shielding assembly comprises a limiting block arranged on the transformation box, a transmission belt sleeved on the limiting block, a first clamping plate arranged on the transmission belt, a second clamping plate arranged on one side of the fan, a stop block arranged at the bottom of the transformation box, a third elastic member used for connecting the stop block and the first clamping plate, and a plurality of shielding groups arranged on the second ventilation opening; the shielding group comprises two first shielding plates, two second shielding plates arranged on one sides of the two first shielding plates, a first rotating shaft used for connecting the two first shielding plates, and a second rotating shaft used for connecting the two second shielding plates; the ventilation device also comprises a pulling plate arranged on the transmission belt, a connecting wire with one end connected to the pulling plate, two fixed blocks respectively arranged on two first shielding plates closest to the transmission belt in the shielding groups, two guide blocks respectively arranged on two second shielding plates farthest from the transmission belt in the shielding groups, two guide rods respectively arranged on the two fixed blocks, and two fourth elastic pieces respectively sleeved on the two guide rods; the two shielding assemblies are identical in structure and symmetrically arranged, the transmission belt can rotate relative to the limiting block, the second clamping plate and the first clamping plate are arranged in a matched mode, the shielding assemblies are identical in structure and symmetrically arranged, the first shielding plate and the second shielding plate are rotatably connected, the first rotating shaft can rotate relative to the first shielding plate, the second rotating shaft can rotate relative to the second shielding plate, the connecting wire penetrates through the first rotating shafts and the second rotating shafts, the first shielding plate can rotate relative to the fixed block, the second shielding plate can rotate relative to the guide block, and the guide rod penetrates through the guide block; through the arrangement of the first shielding plate and the second shielding plate, when the transformer is in a normal state, the second ventilation opening can be shielded through the first shielding plate and the second shielding plate, so that the condition that dust enters the interior of the transformer box from the second ventilation opening is avoided, when the transformer is in load operation and the fan is lifted upwards, the second clamping plate can contact the first clamping plate, when the fan is lifted upwards, the first clamping plate is driven to move upwards by the second clamping plate, then the driving belt is driven to rotate along the limiting block by the first clamping plate, so that the connecting line is pulled by the driving belt through the pulling plate, so that the connecting wire pulls the first rotating shaft and the second rotating shaft and drives the first shielding plate and the second shielding plate to fold, therefore, the second air vent is exposed, the blowing operation of the fan to the inside of the transformer box is facilitated, and the switching accuracy of the second air vent in the dustproof and ventilation states is improved; through the setting of guide block and fourth elastic component, when first shielding plate and second shielding plate are folded under the drive of connecting wire, can lead to first shielding plate and second shielding plate through the guide block, stability when first shielding plate and second shielding plate remove has been increased, when the fan resets downwards simultaneously, the guide block can drive first shielding plate and second shielding plate and reset under the promotion of fourth elastic component, cooperate the promotion of third elastic component to first cardboard simultaneously, first shielding plate has been increased, the stability that second shielding plate and drive belt reset.

The ventilation device also comprises two cleaning components arranged on the fan; the cleaning assembly comprises two support bars arranged on two sides of the fan, a plurality of support plates arranged on the two support bars respectively, a rotating roller arranged on the fan, a cleaning piece sleeved on the rotating roller, two driving blocks arranged at two ends of the rotating roller, two driving tracks arranged on the two support bars respectively, two moving seats arranged on the two driving tracks respectively and one end of each moving seat is connected to the driving block, two third telescopic rods respectively used for connecting the two driving tracks and the two moving seats, a fifth elastic piece respectively arranged in the two third telescopic rods, a limiting rod arranged on one side of the fan, two pull wires respectively used for connecting the limiting rod and the two third telescopic rods, and two limiting hooks arranged on two sides of the limiting block; the two cleaning assemblies are identical in structure and symmetrically arranged, the driving block is of a cross-shaped structure, the driving block and the plurality of supporting plates are arranged in a matched mode, the moving seat can move relative to the driving rail, the driving block can rotate relative to the moving seat, the limiting rod and the second clamping plate are arranged in a matched mode, and the pull wire penetrates through the driving rail; through the setting of clearance piece, in-process when fan rebound, the gag lever post can contact spacing hook, and under the drive of stopping of spacing hook and fan rebound, the gag lever post can stimulate acting as go-between of both sides, and move the seat and move along the drive track through the drive of acting as go-between, the drive block removes under the drive of removing the seat afterwards, a plurality of backup pads can be contacted at the in-process that removes to the drive block simultaneously, and through the cooperation of drive block and backup pad, make the drive block produce the rotation at the in-process that removes, and then drive live-rollers and clearance piece and rotate and remove, thereby clear up the surface of fan and sweep through the clearance piece, when having avoided the fan to blow to the vary voltage incasement portion, blow in the condition of vary voltage incasement portion with the dust, the cleanliness of vary voltage case and fan has been increased, the clearance of fan has been improved.

The ventilation device also comprises two pushing assemblies arranged on two sides of the fan; the pushing assembly comprises a pushing block arranged on the fan, two guide rollers arranged on the pushing block, a plurality of first guide convex blocks arranged on the guide rollers, two guide belts respectively arranged on one first connecting rod of the plurality of first connecting rods and one second connecting rod of the plurality of second connecting rods, and a plurality of second guide convex blocks arranged on the guide belts; the guide roller can rotate relative to the push block, the first guide lug and the second guide lug are arranged in a matched mode, the guide belt can rotate relative to the first connecting rod, and the guide belt can rotate relative to the second connecting rod; through the arrangement of the push blocks, when the fan moves upwards, the fan can drive the two push blocks on the two sides to move upwards, so that the guide roller and the guide belt are in contact with each other, and in the process that the push blocks move upwards, the guide roller and the guide belt drive the first connecting rod and the second connecting rod to extend, so that the synchronism among the fan, the first connecting rod and the second connecting rod is increased, meanwhile, the friction among the push blocks, the first connecting rod and the second connecting rod is reduced, and the damage of the push blocks caused by overlarge friction is avoided; through the setting of first direction lug and second direction lug, after guide roll and guidance tape contacted each other, can increase the frictional force between guide roll and the guidance tape through first direction lug and second direction lug, improved the transmission cooperation effect between guide roll and the guidance tape.

The ventilation device also comprises a plurality of ventilation holes arranged on the first mounting plate, a plurality of ventilation grooves arranged on the second mounting plate, and a plurality of guide plates respectively arranged on the ventilation grooves; the ventilation groove is of an arc-shaped structure, the guide plate is of an arc-shaped structure, and one end of the guide plate is of an inclined structure; through the arrangement of the vent holes and the ventilation grooves, when the fan blows air to the interior of the transformer box, the air can be guided through the vent holes and the ventilation grooves, and the situation that the heat dissipation effect is poor due to the fact that the air is blocked by the first mounting plate and the second mounting plate is avoided; through the setting of guide board, after the ventilation groove was blown to wind, wind can blow to the position of coil winding under the guide effect of guide board, has increased the radiating effect of position between two adjacent coil windings.

In summary, the invention has the following advantages: the sound insulation effect of the transformer is improved, and the heat dissipation effect of the transformer is guaranteed.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of fig. 1 of the present invention.

Fig. 3 is a side view of the present invention.

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 according to the present invention.

Fig. 5 is a partial enlarged view of the invention at a in fig. 4.

Fig. 6 is a partial enlarged view of the invention at B in fig. 4.

Fig. 7 is a partial enlarged view of the invention at C in fig. 4.

Fig. 8 is an enlarged view of a portion of the invention at D in fig. 4.

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 3 in accordance with the present invention.

Fig. 10 is an enlarged view of a portion a of fig. 9 according to the present invention.

Fig. 11 is a partial enlarged view of the invention at B in fig. 9.

Fig. 12 is a cross-sectional view taken along line C-C of fig. 3 in accordance with the present invention.

Fig. 13 is a partial enlarged view of fig. 12 at a.

Fig. 14 is a partial enlarged view of the invention at B in fig. 12.

Fig. 15 is a cross-sectional view taken along line D-D of fig. 3 in accordance with the present invention.

Fig. 16 is an enlarged view of a portion of fig. 15 a according to the present invention.

Fig. 17 is an enlarged view of a portion of the invention at B in fig. 15.

Fig. 18 is a front view of the present invention.

Fig. 19 is an enlarged view of a portion of fig. 18 a according to the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1 to 19, a low noise dry type transformer includes a transformer tank 1, two fixing slots 11 provided on the transformer tank, a first mounting plate 12 provided on the fixing slots, a second mounting plate 13 provided on the fixing slots, three coil windings 14 connected to the first mounting plate and the second mounting plate, two sound insulation devices 2 provided on the transformer tank, two driving devices 3 for connecting the two sound insulation devices, and a ventilation device 4 provided on the transformer tank; the first mounting panel can for the fixed slot removes, the second mounting panel can for the fixed slot removes, two noise insulation structure are the same and are the symmetry setting, two drive arrangement structure are the same and are the symmetry setting.

The sound insulation device 2 comprises a sound insulation box 21, two sound insulation components, an upper baffle plate 25 and a groove 26; the sound insulation box 21 is arranged on one side of the transformation box, and the two sound insulation components are arranged on the sound insulation box; the sound insulation assembly comprises a moving plate 22, a plurality of folding plates 23, a plurality of sound insulation members 24, a moving track 27, a moving block 28, a first elastic member 29 and a guide rod 20; a moving plate 22 is provided on the soundproof box, a plurality of folding plates 23 are provided on the moving plate, and a plurality of soundproof pieces 24 are provided on the plurality of folding plates, respectively; the two sound insulation assemblies are identical in structure and symmetrically arranged, the folding plate closest to the moving plate in the plurality of folding plates can rotate relative to the moving plate, and the plurality of folding plates are rotatably arranged; sound insulation cotton is arranged in the sound insulation box, and the sound insulation piece is an inflatable rubber ring; the upper baffle 25 is used for connecting the two moving plates 22 in the two sound insulation assemblies, and the groove 26 is formed in the upper baffle; the moving track 27 is arranged on the sound insulation box, the moving block 28 is used for connecting the moving track and the folding plate which is farthest away from the moving plate in the plurality of folding plates, the first elastic piece 29 is used for connecting the moving block and the moving track, and the guide rod 20 is arranged on the moving track; the upper baffle plate can move relative to the sound insulation box, two grooves are in a circular structure when two upper baffle plates in the two sound insulation devices are attached, the moving block can move relative to the moving track, the guide rod penetrates through the moving block, and the moving block can move relative to the guide rod; be equipped with soundproof cotton in the last baffle, be equipped with soundproof cotton in the movable plate, first elastic component is the spring.

The driving device 3 comprises two sliding grooves 31, two clamping blocks 32, a first transmission assembly, a second transmission assembly, two first telescopic rods 37, two second telescopic rods 38 and an air inlet assembly; the two sliding grooves 31 are formed in the two moving plates 22 of the two sound insulation devices, the two clamping blocks 32 are respectively formed in the two sliding grooves, the first transmission assembly is used for connecting the two sliding grooves, and the second transmission assembly is used for connecting the two sliding grooves; the first transmission assembly comprises a plurality of transmission blocks 33, a plurality of first connecting rods 34, a plurality of second connecting rods 35 and a plurality of second elastic pieces 36; the plurality of transmission blocks 33 are arranged on the two sliding grooves, the plurality of first connecting rods 34 are respectively used for connecting the plurality of transmission blocks, the plurality of second connecting rods 35 are respectively used for connecting the plurality of transmission blocks, and the plurality of second elastic pieces 36 are respectively used for connecting the plurality of transmission blocks; the fixture block can move relative to the sliding chute, the first transmission assembly and the second transmission assembly are identical in structure and symmetrically arranged, the first connecting rod can rotate relative to the transmission block, the second connecting rod can rotate relative to the transmission block, the first connecting rod and the second connecting rod are arranged in a staggered mode, the first connecting rod and the second connecting rod are connected in a hinged mode, two transmission blocks and sliding chutes which are positioned at the bottommost parts of the two sliding chutes in the first transmission assembly are fixed with each other, two transmission blocks and sliding chutes which are positioned at the uppermost parts of the two sliding chutes in the second transmission assembly are fixed with each other, and the rest transmission blocks can move relative to the sliding chutes; the second elastic piece is a spring; the two first telescopic rods 37 are arranged on the two transmission blocks 33 closest to the second transmission assembly in the first transmission assembly, the two second telescopic rods 38 are arranged on the plurality of rotating blocks in the second transmission assembly in a penetrating manner and positioned at two sides of the second transmission assembly, and the air inlet assembly is arranged on the moving plate; the air inlet assembly comprises two guide grooves 39, a first air inlet pipe 30, a fourth telescopic rod 301, a first air inlet hole 302, two guide columns 303, a second air inlet pipe 304, a second air inlet hole 305, a baffle ring 306, a sixth elastic piece 307 and a plurality of rotating cover plates 308; the two guide grooves 39 are arranged on the movable plate, the first air inlet pipe 30 is arranged on the movable plate, the fourth telescopic rod 301 is sleeved on the first air inlet pipe, the first air inlet hole 302 is arranged on the first air inlet pipe, the two guide columns 303 are arranged on the movable plate correspondingly arranged on the other side, the second air inlet pipe 304 is arranged on the movable plate correspondingly arranged on the other side, the second air inlet hole 305 is arranged on the second air inlet pipe, the baffle ring 306 is arranged on the second air inlet pipe, the sixth elastic piece 307 is used for connecting the baffle ring and the second air inlet pipe, and the plurality of rotary cover plates 308 are arranged at one end of the second air inlet pipe; the first telescopic rod and the second telescopic rod are connected through an air pipe, one end of the second telescopic rod is connected with a transmission block at the lowest part in the second transmission assembly, the guide post can be inserted into the guide groove, a spring is arranged in the fourth telescopic rod, the first air inlet hole is of a T-shaped structure, the baffle ring can move relative to the second air inlet pipe, the rotating cover plate can rotate relative to the second air inlet pipe, a torsional spring is arranged in the rotating cover plate, one end of the torsional spring is connected to the rotating cover plate, the other end of the torsional spring is connected to the second air inlet pipe, the first air inlet pipe is communicated with the sound insulating piece, and the second air inlet pipe is communicated with the sound insulating piece; the sixth elastic member is a spring.

The ventilation device 4 comprises a first ventilation opening 41, a filter element 42, a second ventilation opening 43, two electric rails 44, a lifting plate 45, a third ventilation opening 46, two through holes 47, a fan 48, two shielding assemblies, a pulling plate 409, a connecting line 410, two fixed blocks 411, two guide blocks 412, two guide rods 413, two fourth elastic elements 414, two cleaning assemblies, two pushing assemblies, a plurality of ventilation holes 432, a plurality of ventilation grooves 433 and a plurality of guide plates 434; the first ventilation opening 41 is arranged at the upper end of the transformer tank 1, the filtering piece 42 is arranged on the first ventilation opening, the second ventilation opening 43 is arranged at the lower end of the transformer tank, the two electric tracks 44 are respectively arranged on the two sound insulation tanks, the lifting plate 45 is used for connecting the two electric tracks, the third ventilation opening 46 is arranged on the lifting plate, the two through holes 47 are arranged on the lifting plate, and the fan 48 is arranged on the third ventilation opening; the lifting plate can move relative to the electric track, and the third ventilation opening and the second ventilation opening are correspondingly arranged; the filter element is a filter screen, the electric track is in the prior art, the fan is driven by a motor to rotate, and sound insulation cotton is arranged in the lifting plate; the two shielding assemblies are arranged on the second ventilation opening 43 and comprise a limiting block 49, a transmission belt 40, a first clamping plate 401, a second clamping plate 402, a stop block 403, a third elastic member 404 and a plurality of shielding groups; a limiting block 49 is arranged on the pressure change box, a transmission belt 40 is sleeved on the limiting block, a first clamping plate 401 is arranged on the transmission belt, a second clamping plate 402 is arranged on one side of the fan, a stop block 403 is arranged at the bottom of the pressure change box, a third elastic element 404 is used for connecting the stop block and the first clamping plate, and a plurality of shielding groups are arranged on the second ventilation opening; the shielding group comprises two first shielding plates 405, two second shielding plates 406, a first rotating shaft 407 and a second rotating shaft 408; the two second shielding plates 406 are arranged on one side of the two first shielding plates, the first rotating shaft 407 is used for connecting the two first shielding plates, and the second rotating shaft 408 is used for connecting the two second shielding plates; a pulling plate 409 is arranged on the transmission belt, one end of a connecting wire 410 is connected to the pulling plate, two fixed blocks 411 are respectively arranged on two first shielding plates which are closest to the transmission belt in the shielding groups, two guide blocks 412 are respectively arranged on two second shielding plates which are farthest from the transmission belt in the shielding groups, two guide rods 413 are respectively arranged on the two fixed blocks, and two fourth elastic members 414 are respectively sleeved on the two guide rods; the two shielding assemblies are identical in structure and symmetrically arranged, the transmission belt can rotate relative to the limiting block, the second clamping plate can push the first clamping plate to move, the plurality of shielding assemblies are identical in structure and symmetrically arranged, the first shielding plate and the second shielding plate are rotatably connected, the first rotating shaft can rotate relative to the first shielding plate, the second rotating shaft can rotate relative to the second shielding plate, the connecting wire is arranged on the plurality of first rotating shafts and the plurality of second rotating shafts in a penetrating mode, the first shielding plate can rotate relative to the fixed block, the second shielding plate can rotate relative to the guide block, and the guide rod is arranged on the guide block in a penetrating mode; the third elastic piece is a spring, and the fourth elastic piece is a spring; the two cleaning components are arranged on the fan 48, and each cleaning component comprises two supporting bars 415, a plurality of supporting plates 416, a rotating roller 417, a cleaning piece 418, two driving blocks 419, two driving tracks 420, two moving seats 421, two third telescopic rods 422, a fifth elastic piece 423, a limiting rod 424, two pull wires 425 and two limiting hooks 426; the two supporting bars 415 are arranged on two sides of the fan, the supporting bars 416 are respectively arranged on the two supporting bars, the rotating roller 417 is arranged on the fan, the cleaning piece 418 is sleeved on the rotating roller, the two driving blocks 419 are arranged at two ends of the rotating roller, the two driving rails 420 are respectively arranged on the two supporting bars, the two moving seats 421 are respectively arranged on the two driving rails, one end of each moving seat is connected to the corresponding driving block, the two third telescopic links 422 are respectively used for connecting the two driving rails with the two moving seats, the fifth elastic pieces 423 are respectively arranged in the two third telescopic links, the limiting rod 424 is arranged on one side of the fan, the two pull wires 425 are respectively used for connecting the limiting rod with the two third telescopic links, and the two limiting hooks 426 are arranged on two sides of the limiting block; the two cleaning assemblies are identical in structure and symmetrically arranged, the driving block is of a cross-shaped structure, the driving block can rotate along the supporting plates, the moving seat can move relative to the driving rail, the driving block can rotate relative to the moving seat, the limiting rod can be limited and fixed through the second clamping plate, and the pull wire penetrates through the driving rail; the cleaning piece is a brush, and the fifth elastic piece is a spring; two pushing assemblies are arranged on two sides of the fan 48, and each pushing assembly comprises a pushing block 427, two guide rollers 428, a plurality of first guide lugs 429, two guide belts 430 and a plurality of second guide lugs 431; a push block 427 is disposed on the fan, two guide rollers 428 are disposed on the push block, a plurality of first guide protrusions 429 are disposed on the guide rollers, two guide belts 430 are respectively disposed on one of the plurality of first connecting rods and one of the plurality of second connecting rods, and a plurality of second guide protrusions 431 are disposed on the guide belts; the guide roller can rotate relative to the push block, the first guide lug and the second guide lug are arranged in a matched mode, the guide belt can rotate relative to the first connecting rod, and the guide belt can rotate relative to the second connecting rod; a plurality of vent holes 432 are provided in the first mounting plate 12, a plurality of vent grooves 433 are provided in the second mounting plate 13, and a plurality of guide plates 434 are provided in the plurality of vent grooves, respectively; the ventilation groove is of an arc-shaped structure, the guide plate is of an arc-shaped structure, and one end of the guide plate is of an inclined structure.

The specific working principle is as follows: when the transformer needs to carry out load operation, the electric rail 44 is started to drive the lifting plate 45 and the fan 48 to lift upwards, the fan 48 can drive the two 427 pushing blocks at the two sides to move upwards, so that the guide roller 428 and the guide belt 430 are in contact with each other, and in the process that the pushing blocks 427 move upwards, the guide roller 428 and the guide belt 430 drive the first connecting rod 34 and the second connecting rod 35 to extend; when the first connecting rod 34 and the second connecting rod 35 in the first transmission assembly move upwards, the first connecting rod 34 and the second connecting rod 35 drive the transmission blocks 33 in the two chutes 31 to move upwards, and simultaneously, the plurality of first connecting rods 34 and the plurality of second connecting rods 35 synchronously move upwards through the hinged connection between the plurality of first connecting rods 34 and the plurality of second connecting rods 35, so that the plurality of first connecting rods 34 and the plurality of second connecting rods 35 are changed from a nearly parallel state to a vertical state, and simultaneously, when the transmission block 33 in the first transmission assembly moves upwards, the first telescopic rod 37 is driven to contract, the gas in the first telescopic rod 37 enters the second telescopic rod 38 through the matching between the first telescopic rod 37 and the second telescopic rod 38, and the second telescopic rod 38 is driven to extend, so that the second telescopic rod 38 drives the transmission block 33 at the lowest part in the second transmission assembly to move, the first connecting rods 34 and the second connecting rods 35 in the second transmission assembly are driven to move, and the upper parts and the lower parts of the two moving plates 22 are driven simultaneously by the cooperation of the first transmission assembly and the second transmission assembly; when the moving plate 22 is driven by the driving device 3 to move, the plurality of folding plates 23 are driven by the moving plate 22 to extend, the upper baffle 25 is driven by the moving plate 22 to move to the upper part of the transformation box 1, and then the folding plates 23, the moving plate 22, the upper baffle 25 and the sound insulation box 21 are used for insulating the periphery of the transformation box 1; when the transformer is in a normal state, the second vent 43 can be shielded by the first shielding plate 405 and the second shielding plate 406, so that the situation that dust enters the interior of the transformer box 1 from the second vent 43 is avoided, when the transformer is in a load operation and the fan 48 is lifted upwards, the second clamping plate 402 can contact with the first clamping plate 401, the fan 48 is lifted upwards, the first clamping plate 401 is driven by the second clamping plate 402 to move upwards, then the first clamping plate 401 drives the transmission belt 40 to rotate along the limiting block 49, so that the transmission belt 40 pulls the connecting line 410 through the pulling plate 409, the connecting line 410 pulls the first rotating shaft 407 and the second rotating shaft 408 and drives the first shielding plate 405 and the second shielding plate 406 to be folded, the second vent 43 is exposed, and the blowing operation of the fan 48 on the interior of the transformer box 1 is facilitated; meanwhile, in the process of upward movement of the fan 48, the limiting rod 424 contacts the limiting hook 426, and under the blocking of the limiting hook 426 and the driving of the upward movement of the fan 48, the limiting rod 424 pulls the pull wires 425 at both sides, and drives the moving base 421 to move along the driving rail 420 through the pull wires 425, then the driving block 419 moves under the driving of the moving base 421, and meanwhile, the driving block 419 contacts the supporting plates 416 in the moving process, and through the matching of the driving block 419 and the supporting plates 416, the driving block 419 rotates in the moving process, so as to drive the rotating roller 417 and the cleaning member 418 to rotate and move, and thus, the surface of the fan 48 is cleaned and cleaned through the cleaning member 418.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. A low-noise dry-type transformer comprises a transformer box (1), two fixing grooves (11) arranged on the transformer box, a first mounting plate (12) arranged on an upper fixing groove, a second mounting plate (13) arranged on a lower fixing groove, two upper sides and two lower sides of three coil windings (14) are respectively connected to the first mounting plate and the second mounting plate, two sound insulation devices (2) arranged on the transformer box, two driving devices (3) used for connecting the two sound insulation devices, and a ventilation device (4) arranged on the transformer box; the method is characterized in that: the sound insulation device (2) comprises a sound insulation box (21) arranged on one side of the transformation box and two sound insulation assemblies arranged on the sound insulation box; the sound insulation assembly comprises a moving plate (22) arranged on the sound insulation box, a plurality of folding plates (23) arranged on the moving plate, and a plurality of sound insulation pieces (24) respectively arranged on the folding plates; the first mounting plate can move relative to the fixed groove, the second mounting plate can move relative to the fixed groove, the two sound insulation devices are identical in structure and symmetrically arranged, the two driving devices are identical in structure and symmetrically arranged, the two sound insulation assemblies are identical in structure and symmetrically arranged, the folding plate, closest to the moving plate, of the folding plates can rotate relative to the moving plate, and the folding plates are rotatably arranged; the ventilation device (4) further comprises a plurality of ventilation holes (432) arranged on the first mounting plate (12), a plurality of ventilation grooves (433) arranged on the second mounting plate (13), and a plurality of guide plates (434) respectively arranged on the ventilation grooves; the ventilation groove is of an arc-shaped structure, the guide plate is of an arc-shaped structure, and one end of the guide plate is of an inclined structure;

the sound insulation device (2) further comprises an upper baffle (25) used for connecting two moving plates (22) in the two sound insulation assemblies and a groove (26) arranged on the upper baffle; the sound insulation assembly further comprises a moving track (27) arranged on the sound insulation box, a moving block (28) used for connecting the moving track and a folding plate farthest from the moving plate in the plurality of folding plates, a first elastic piece (29) used for connecting the moving block and the moving track, and a guide rod (20) arranged on the moving track; the upper baffle plate can move relative to the sound insulation box, two grooves are in a circular structure when two upper baffle plates in the two sound insulation devices are attached, the moving block can move relative to the moving track, the guide rod penetrates through the moving block, and the moving block can move relative to the guide rod;

the driving device (3) comprises two sliding grooves (31) arranged on two moving plates (22) in the two sound insulation devices, two clamping blocks (32) respectively arranged on the two sliding grooves, a first transmission assembly used for connecting the two sliding grooves and a second transmission assembly used for connecting the two sliding grooves; the first transmission assembly comprises a plurality of transmission blocks (33) arranged on the two sliding grooves, a plurality of first connecting rods (34) respectively used for connecting the plurality of transmission blocks, a plurality of second connecting rods (35) respectively used for connecting the plurality of transmission blocks, and a plurality of second elastic pieces (36) respectively used for connecting the plurality of transmission blocks; the fixture block can move relative to the sliding chute, the first transmission assembly and the second transmission assembly are identical in structure and symmetrically arranged, the first connecting rod can rotate relative to the transmission block, the second connecting rod can rotate relative to the transmission block, the first connecting rod and the second connecting rod are arranged in a staggered mode, the first connecting rod and the second connecting rod are connected in a hinged mode, two transmission blocks and sliding chutes which are positioned at the bottommost parts of the two sliding chutes in the first transmission assembly are fixed with each other, two transmission blocks and sliding chutes which are positioned at the uppermost parts of the two sliding chutes in the second transmission assembly are fixed with each other, and the rest transmission blocks can move relative to the sliding chutes;

the driving device (3) further comprises two first telescopic rods (37) arranged on two transmission blocks (33) which are closest to the second transmission assembly in the first transmission assembly, two second telescopic rods (38) which penetrate through the plurality of rotating blocks in the second transmission assembly and are positioned on two sides of the second transmission assembly, and an air inlet assembly arranged on the moving plate; the air inlet assembly comprises two guide grooves (39) arranged on the moving plate, a first air inlet pipe (30) arranged on the moving plate, a fourth telescopic rod (301) sleeved on the first air inlet pipe, a first air inlet hole (302) arranged on the first air inlet pipe, two guide columns (303) arranged on the moving plate correspondingly arranged on the other side, a second air inlet pipe (304) arranged on the moving plate correspondingly arranged on the other side, a second air inlet hole (305) arranged on the second air inlet pipe, a baffle ring (306) arranged on the second air inlet pipe, a sixth elastic part (307) used for connecting the baffle ring and the second air inlet pipe, and a plurality of rotating cover plates (308) arranged at one end of the second air inlet pipe; first telescopic link with the second telescopic link is the cooperation setting, the one end of second telescopic link with the transmission piece interconnect of lower part in the second transmission subassembly, the guide post with the guide way is the cooperation setting, be equipped with the spring in the fourth telescopic link, first inlet port is "T" type structure, keep off the ring can for the second intake pipe removes, rotate the apron can for the second intake pipe rotates, be equipped with the torsional spring in the rotation apron, torsional spring one end connect in rotate the apron on, the torsional spring other end connect in on the second intake pipe, first intake pipe and sound insulation communicate each other, second intake pipe and sound insulation communicate each other.

2. The low noise dry transformer of claim 1, wherein: the ventilation device (4) comprises a first ventilation opening (41) arranged at the upper end of the transformer box (1), a filtering piece (42) arranged on the first ventilation opening, a second ventilation opening (43) arranged at the lower end of the transformer box, two electric rails (44) respectively arranged on the two sound insulation boxes, a lifting plate (45) used for connecting the two electric rails, a third ventilation opening (46) arranged on the lifting plate, two through holes (47) arranged on the lifting plate and a fan (48) arranged on the third ventilation opening; the lifting plate can move relative to the electric track, and the third ventilation opening and the second ventilation opening are arranged in an aligned mode;

the ventilation device (4) further comprises two shielding assemblies arranged on the second ventilation opening (43); the shielding assembly comprises a limiting block (49) arranged on the variable pressure box, a transmission belt (40) sleeved on the limiting block, a first clamping plate (401) arranged on the transmission belt, a second clamping plate (402) arranged on one side of the fan, a stop block (403) arranged at the bottom of the variable pressure box, a third elastic member (404) used for connecting the stop block and the first clamping plate, and a plurality of shielding groups arranged on the second ventilation openings; the shielding group comprises two first shielding plates (405), two second shielding plates (406) arranged on one sides of the two first shielding plates, a first rotating shaft (407) used for connecting the two first shielding plates, and a second rotating shaft (408) used for connecting the two second shielding plates; the ventilation device also comprises a pulling plate (409) arranged on the transmission belt, a connecting wire (410) with one end connected to the pulling plate, two fixed blocks (411) respectively arranged on two first shielding plates which are closest to the transmission belt in the shielding groups, two guide blocks (412) respectively arranged on two second shielding plates which are farthest from the transmission belt in the shielding groups, two guide rods (413) respectively arranged on the two fixed blocks, and two fourth elastic pieces (414) respectively sleeved on the two guide rods; the two shielding assemblies are identical in structure and symmetrically arranged, the transmission belt can rotate relative to the limiting block, the second clamping plate and the first clamping plate are arranged in a matched mode, the shielding assemblies are identical in structure and symmetrically arranged, the first shielding plate and the second shielding plate are rotatably connected, the first rotating shaft can rotate relative to the first shielding plate, the second rotating shaft can rotate relative to the second shielding plate, the connecting wire penetrates through the first rotating shafts and the second rotating shafts, the first shielding plate can rotate relative to the fixed block, the second shielding plate can rotate relative to the guide block, and the guide rod penetrates through the guide block;

the ventilation device (4) further comprises two cleaning assemblies arranged on the fan (48); clearance subassembly is including locating two support bars (415) of fan both sides, locate respectively a plurality of backup pads (416) on two support bars, locate live-rollers (417), cover on the fan are located clearance piece (418) on the live-rollers, locate two drive blocks (419) at live-rollers both ends, locate respectively two drive track (420) on two support bars are located respectively on two drive track and one end connect in two on the drive block remove seat (421), be used for connecting respectively two drive track with two third telescopic links (422) of two removal seats, locate respectively fifth elastic component (423) in two third telescopic links, locate gag lever post (424) of fan one side, be used for connecting respectively the gag lever post with two acting as go-between (425) of two third telescopic links, Two limiting hooks (426) arranged on two sides of the limiting block; the two cleaning assemblies are identical in structure and symmetrically arranged, the driving block is of a cross-shaped structure, the driving block and the plurality of supporting plates are arranged in a matched mode, the moving seat can move relative to the driving rail, the driving block can rotate relative to the moving seat, the limiting rod and the second clamping plate are arranged in a matched mode, and the pull wire penetrates through the driving rail;

the ventilation device (4) also comprises two pushing assemblies arranged on two sides of the fan (48); the pushing assembly comprises a pushing block (427) arranged on the fan, two guide rollers (428) arranged on the pushing block, a plurality of first guide convex blocks (429) arranged on the guide rollers, two guide belts (430) respectively arranged on one first connecting rod of the plurality of first connecting rods and one second connecting rod of the plurality of second connecting rods, and a plurality of second guide convex blocks (431) arranged on the guide belts; the guide roller can rotate relative to the push block, the first guide protruding block and the second guide protruding block are arranged in a matched mode, the guide belt can rotate relative to the first connecting rod, and the guide belt can rotate relative to the second connecting rod.