CN118073052B - Guide air-cooled dry type transformer - Google Patents

Abstract

The application discloses a guide air-cooled dry type transformer, and belongs to the technical field of dry type transformers. Including the shell, still include: the top cover is configured at the top end of the shell, a first ventilation groove is formed in the top end of the top cover in a penetrating mode, and a first sealing plate is rotationally arranged in the first ventilation groove; the second ventilation grooves are arranged on two sides of the top end of the shell; the jacking component is arranged in the shell and used for switching different air guiding modes; wherein, the jacking subassembly includes: the lifting frame is arranged at the top end of the dry-type transformer component in a lifting manner; the first pushing wheel is arranged on one side of the lifting frame facing the first ventilation groove, and the first pushing wheel is rotatably arranged on one side of the first sealing plate; the second sealing plates are arranged on two sides of the lifting frame. The application can carry out structural adjustment according to weather conditions, thereby meeting the heat dissipation requirements in different weather and increasing the stability of integral operation.

Description

Guide air-cooled dry type transformer

Technical Field

The application relates to the technical field of dry transformers, in particular to a guide air-cooled dry transformer.

Background

The dry-type transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and is a transformer in which an iron core and a winding are not immersed in insulating oil, and the main components are a primary coil, a secondary coil and an iron core; the main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization, etc. When the dry-type transformer operates, the cooling mode is generally an air cooling mode, but the fan utilization rate is reduced due to unreasonable design of the air channel of the transformer, so that the heat dissipation efficiency of the fan is improved, the air loading plate is generally arranged around the transformer, the transverse air plate is additionally arranged in the air cooling mode, the air pressure of a product is increased, more heat is taken away by the fan, the purpose of reducing the temperature rise of the transformer is achieved, but the temperature rise of the transformer cannot be regulated according to weather conditions, the heat dissipation mode is single, the integral structure of the dry-type transformer adopts a fixed structural design, and the maintenance is complex.

In view of the above related art, the inventor considers that the structural improvement of the dry-type transformer can be used to adapt to different heat dissipation requirements in different weather environments.

Disclosure of Invention

The application aims to provide a guide air-cooled dry type transformer, which solves the technical problems that the prior art cannot be adjusted according to weather conditions and the heat dissipation mode is single, and achieves the technical effect of improving the overall operation stability.

The embodiment of the application provides a guide air-cooled dry type transformer, which comprises a shell, wherein a sealing door is arranged on one side of the shell, a dry type transformer component is arranged in the shell, and the guide air-cooled dry type transformer further comprises:

The top cover is arranged at the top end of the shell, a first ventilation groove is formed in the top end of the top cover in a penetrating mode, and a first sealing plate is rotationally arranged in the first ventilation groove;

The second ventilation grooves are arranged on two sides of the top end of the shell;

A fan arranged at one side of the dry-type transformer assembly, wherein the air outlet of the fan can be discharged out of the shell through the first ventilation groove or the second ventilation groove;

The jacking component is arranged in the shell and is used for switching different air guiding modes;

Wherein, the jacking subassembly includes:

The lifting frame is arranged at the top end of the dry-type transformer component in a lifting manner;

The first pushing wheel is arranged on one side of the lifting frame facing the first ventilation groove, and the first pushing wheel is rotatably arranged on one side of the first sealing plate;

The second sealing plates are arranged on two sides of the lifting frame; when the lifting frame drives the first pushing wheel to push the first sealing plate so as to expose the first ventilation groove, the second sealing plate moves to the second ventilation groove along with the lifting frame to seal the second ventilation groove.

Preferably, a second guide bar is arranged at the bottom end of the first sealing plate, and the first pushing wheel is inserted into the second guide bar and is in movable fit with the second guide bar.

Preferably, the jacking assembly further comprises:

The linear module is configured at the bottom end of the lifting frame and is used for driving the lifting frame to move.

Preferably, a surrounding sealing air bag is arranged between the shell and the sealing door;

The jacking assembly further comprises:

a tubular air bag arranged below the lifting frame;

An air pump arranged at one side of the shell; and the air pump is communicated with the tubular air bag and the sealing air bag.

Preferably, the method further comprises:

the moving assembly is configured at the bottom end of the dry-type transformer assembly and is used for driving the dry-type transformer assembly to partially move out of the shell;

Wherein the moving assembly comprises:

The guide bracket is configured at the bottom end of the shell;

The movable support is arranged at the bottom end of the guide support in a sliding manner, the dry-type transformer component is arranged at the top end of the movable support, and the movable support is driven by the movable support to drive the dry-type transformer component to partially move out of the shell.

Preferably, the method further comprises:

The limiting component is arranged in the shell and used for limiting the movable bracket in the shell;

Wherein, the fixed orifices has been seted up to the one end that the sealing door was kept away from to the movable support, spacing subassembly includes:

the first limiting frame is arranged on one side, far away from the sealing door, of the movable support, and the first limiting frame is rotatably arranged on a mounting frame;

The first movable frame is movably arranged on one side of the first limiting frame, and in a working state, the first movable frame penetrates through the fixed hole to limit the movable support;

The pull rod is rotationally arranged at one end, far away from the first movable frame, of the first limiting frame, and when the pull rod is pulled to enable the first limiting frame to rotate, the first movable frame is separated from the corresponding fixing hole so as to relieve the limitation of the movable support.

Preferably, the first movable frame is rotatably arranged on one side of the first limiting frame through a torsion spring, a first baffle is fixedly arranged on one side of the first limiting frame, and the first baffle limits the first movable frame to rotate towards the side far away from the pull rod.

Preferably, the moving assembly further comprises:

the driving wheels are rotatably arranged on two sides of the guide bracket and are arranged on one side of the movable bracket in a manner of abutting against the guide bracket;

The rotating shaft penetrates through the guide bracket, and driving teeth are arranged on the outer side of the rotating shaft; and a rack is arranged on one side of the movable support, which faces the guide support, and is matched with the driving teeth.

Preferably, the moving assembly further comprises a second limiting frame, and the second limiting frame is arranged at the top end of the guide bracket; when the movable bracket is driven to drive the dry-type transformer component to partially move out of the shell, the second limiting frame can limit the movable bracket.

Preferably, the second limiting frame is rotatably arranged at the top end of the guide bracket;

The second limiting frame comprises two limiting plates which are fixedly arranged;

The two sides of the limiting plate are rotatably provided with first guide wheels, and the limiting plate is connected with the guide bracket through a tension spring;

one end of the other limiting plate is rotatably provided with a second movable frame, and the second movable frame is arranged on one side of the limiting plate through a torsion spring, so that the second movable frame can only rotate towards the first guide wheel side; and a second guide wheel is arranged on one side of the second movable frame far away from the first guide wheel.

One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:

(1) The application can carry out structural adjustment according to weather conditions, thereby meeting the heat dissipation requirements under different weather conditions and ensuring the normal operation of the internal dry-type transformer component.

(2) According to the application, the first ventilation groove and the second ventilation groove can be driven to switch in an opening and closing state through the lifting process of the lifting frame, when the weather is good, heat in the whole shell is discharged from the first ventilation groove at the top, and the whole air channel is a vertical air channel, so that the heat dissipation effect is good; when weather is overcast and rainy weather, the second sealing plate opens the second ventilation groove, and the inside heat of whole shell is discharged from the second ventilation groove, and fixed baffle carries out the second ventilation groove and keeps off the rain, and whole wind channel is "T" wind channel, can not influence inside rainwater protection effect when dispelling the heat, avoids inside condition of intaking.

(3) According to the technical scheme, when the dry-type transformer assembly needs to be overhauled, the rotating shaft drives the movable bracket to advance to extend out of the shell, and then the front end suspension part is supported by the supporting rod, so that the maintenance and the overhauling of the dry-type transformer assembly can be performed; when the movable support is pushed in from the outer side of the shell after maintenance is finished, the torsion spring drives the first movable support to reversely reset after the first movable support enters the fixing hole, at the moment, the movable support cannot move, the fixing hole is limited by the first movable support when the movable support moves towards the outer part of the shell, and the fixing hole is limited by the first baffle when the movable support continues to move towards the inner part of the shell.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a guiding air-cooled dry-type transformer according to a preferred embodiment of the present application;

FIG. 2 is a schematic diagram of a portion of a guiding air-cooled dry-type transformer according to a preferred embodiment of the present application;

FIG. 3 is a schematic diagram showing a cross-sectional structure of a guiding air-cooled dry-type transformer according to a preferred embodiment of the present application;

FIG. 4 is a schematic diagram showing a cross-sectional structure of a guiding air-cooled dry-type transformer according to a preferred embodiment of the present application;

fig. 5 is a schematic structural diagram of a casing of a guiding air-cooled dry-type transformer according to a preferred embodiment of the present application;

FIG. 6 is an enlarged schematic view of the structure A in FIG. 5 according to the present application;

FIG. 7 is a schematic diagram of a first sealing plate of a guiding air-cooled dry-type transformer according to a preferred embodiment of the present application;

fig. 8 is a schematic structural diagram of a jacking component of a guide air-cooled dry-type transformer according to a preferred embodiment of the present application;

FIG. 9 is a schematic view of a tubular bladder of a pilot-air cooled dry transformer according to a preferred embodiment of the present application;

fig. 10 is a schematic diagram showing an internal structure of a casing of a guide air-cooled dry-type transformer according to a preferred embodiment of the present application;

FIG. 11 is a schematic diagram illustrating a spacing assembly of a guiding air-cooled dry-type transformer according to a preferred embodiment of the present application;

FIG. 12 is an enlarged schematic view of the structure of FIG. 11B according to the present application;

FIG. 13 is a schematic diagram of a moving assembly of a guiding air-cooled dry-type transformer according to a preferred embodiment of the present application;

fig. 14 is an enlarged schematic view of the structure of fig. 13 at C in accordance with the present application.

The reference numerals in the figures illustrate: 1. a housing; 11. a top cover; 111. a first ventilation slot; 112. a fixed baffle; 12. sealing the air bag; 13. a second ventilation slot; 14. a first guide bar; 15. a first sealing plate; 151. a second guide bar; 16. a mounting frame; 17. sealing the door;

2. A jacking assembly; 21. a lifting frame; 211. a third ventilation slot; 22. a support plate; 221. a first push wheel; 23. a second sealing plate; 24. an air pump; 25. a gas tank; 26. a tubular balloon; 261. an air pipe; 262. an electromagnetic valve;

3. A limit component; 31. a movable push rod; 32. pressing the rod; 33. a pull rod; 34. a first limiting frame; 341. a first baffle; 35. a first movable frame;

4. A moving assembly; 41. a guide bracket; 42. a driving wheel; 43. a movable support; 431. a fixing hole; 44. a rack; 45. a rotation shaft; 46. driving the teeth; 47. the second limiting frame; 471. staggered slotting; 472. a first guide wheel; 473. a second movable frame; 474. a second guide wheel; 475. a tension spring;

5. a dry-type transformer assembly; 51. a bottom bracket; 52. a blower; 53. a core; 54. injection molding of the insulating winding; 541. and a heat dissipation air duct.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The following describes a guide air-cooled dry-type transformer and its operation principle according to an embodiment of the present application with reference to fig. 1 to 14.

Referring to fig. 1 to 14, the present embodiment provides a guiding air-cooled dry-type transformer having a networking function, controlled by a wireless network or a wired network, including a housing 1, a wind direction sensor, a rain sensor and other conventional environment detection sensors are arranged outside the housing 1, a cavity is arranged inside the housing 1, three sides of the cavity are welded to form the housing, a sealing door 17 capable of being opened and closed is arranged on the front end surface of the cavity, a dry-type transformer component 5 is arranged inside the housing 1, a jacking component 2 is arranged above the dry-type transformer component 5, a moving component 4 is arranged below the dry-type transformer component 5, and a limit component 3 is arranged at the back of the dry-type transformer component 5;

The invention can carry out structural adjustment according to weather conditions, thereby meeting the heat dissipation requirements in different weather conditions, effectively preventing water from entering the inside, ensuring the normal operation of the internal dry-type transformer assembly 5, providing a limiting function when the dry-type transformer assembly 5 is moved for maintenance, and improving the stability of the whole operation.

Referring to fig. 2, 5 and 6, be equipped with equipment such as controller, display on the sealing door 17, the shell 1 bottom is equipped with fixed connection's water level sensor and mounting bracket 16, be equipped with the sealed gasbag 12 of encircleing between shell 1 and the sealing door 17, sealed gasbag 12 does not aerify at ordinary times, shell 1 top is equipped with fixed connection's top cap 11, top cap 11 top symmetry slope, rainwater accessible top slope limit landing, top cap 11 both sides are equipped with fixed connection's fixed stop 112, fixed stop 112 is connected with top cap 11 top slope limit minimum, top cap 11 is inside to be equipped with along the first ventilation groove 111 of top slope limit array arrangement, first ventilation groove 111 all symmetrical arrangement's is equipped with the rotation hole, shell 1 top both sides all are equipped with the second ventilation groove 13 that runs through, second ventilation groove 13 both sides all are equipped with first guide bar 14, first ventilation groove 111, second ventilation groove 13 all can carry out dry-type transformer subassembly 5 heat and discharge.

Referring to fig. 2 and 7, the first ventilation groove 111 is internally provided with a first sealing plate 15 which is rotatably opened and closed, two sides of the first sealing plate 15 are respectively provided with a rotating shaft, and the rotating shafts are inserted into the rotating holes and are rotatably connected with the rotating shafts, so that the first sealing plate 15 rotates in the first ventilation groove 111, the inclination angle of the upper end of the first sealing plate 15 is the same as that of the top end of the top cover 11, and when the first sealing plate 15 horizontally seals the first ventilation groove 111, the drainage performance of the top end of the top cover 11 is not affected, and the lower end of the first sealing plate 15 is provided with a second guide strip 151.

Referring to fig. 8 and 9, the jacking assembly 2 includes a lifting frame 21 capable of lifting, a third ventilation slot 211 penetrating through the lifting frame 21 is provided in the lifting frame 21, a supporting plate 22 fixedly connected is provided at the upper end of the lifting frame 21, the height of the supporting plate 22 increases from left to right and then decreases, a first driving wheel 221 rotatably connected is provided at the top end of the supporting plate 22, the first driving wheel 221 is inserted into the second guiding strip 151 and slidingly matched with the second guiding strip 151, the lifting frame 21 drives the supporting plate 22 and the first driving wheel 221 to synchronously lift, the first driving wheel 221 lifts and rotates the first sealing plate 15 from a horizontal sealing state through the second guiding strip 151, and the lifting frame 21 drives the supporting plate 22 and the first driving wheel 221 to synchronously descend, and the first driving wheel 221 pulls and rotates the first sealing plate 15 from an inclined opening state to a horizontal sealing state through the second guiding strip 151.

The two ends of the lifting frame 21 are respectively provided with a second sealing plate 23 fixedly connected, the second sealing plates 23 are inserted into the first guide strips 14 and are in sliding fit with the first guide strips, the lifting frame 21 drives the second sealing plates 23 to synchronously lift up to seal the second ventilation slots 13 when lifting frame 21 ascends, the lifting frame 21 drives the second sealing plates 23 to synchronously descend to open the second ventilation slots 13 when lifting frame 21 descends, and the opening and closing states of the first ventilation slots 111 and the second ventilation slots 13 are opposite.

The lifting process of the lifting frame 21 can drive the first ventilation groove 111 and the second ventilation groove 13 to switch the opening and closing states, when the weather is good, the air pump 24 drives the tubular air bag 26 to extend in length, the lifting frame 21, the supporting plate 22 and the second sealing plate 23 are lifted, the supporting plate 22 jacks up the first sealing plate 15 from the horizontal sealing state to rotate and open, the second sealing plate 23 seals the second ventilation groove 13, heat in the whole shell 1 is discharged from the first ventilation groove 111 at the top, the whole air duct is a vertical air duct, and the heat dissipation effect is good; when weather is overcast and rainy weather, the air pump 24 drives the tubular air bag 26 to shorten the length, the lifting frame 21, the supporting plate 22 and the second sealing plate 23 descend, the supporting plate 22 pulls the first sealing plate 15 to rotate from the inclined opening state to the horizontal sealing state, the second sealing plate 23 opens the second ventilation groove 13, heat inside the whole shell 1 is discharged from the second ventilation groove 13, the fixed baffle 112 shields the second ventilation groove 13 from rain, the whole air channel is a T-shaped air channel, the inner rainwater protection effect cannot be influenced during heat dissipation, and the inner water inflow condition is avoided.

In some technical schemes, a linear module is arranged below the lifting frame 21, and the linear module is used for driving the lifting frame 21 to lift in the shell so as to adjust to different heat dissipation modes according to different weather conditions, wherein the linear module is a power component with a linear output function, such as a linear guide rail, an electric push rod, a hydraulic push rod or a pneumatic push rod.

In the further technical scheme, two groups of tubular air bags 26 which are symmetrically arranged are arranged below the lifting frame 21, the tail ends of the tubular air bags 26 are fixedly connected with the side wall of the shell 1, the telescopic ends of the tubular air bags 26 are fixedly connected with the lower end of the lifting frame 21, the tubular air bags 26 push the lifting frame 21 to lift, a communicated air pipe 261 is arranged below the tubular air bags 26, the air pipe 261 is communicated with the tubular air bags 26 and the sealing air bags 12 through a three-way pipe, electromagnetic valves 262 are arranged on pipelines of the air pipe 261 communicated with the sealing air bags 12, an air pump 24 and an air tank 25 which are fixedly connected with the side wall of the shell 1 are arranged below the tubular air bags 26, the air pump 24 is communicated with the air pipe 261, and the air pump 24 can supply air to the tubular air bags 26 and the sealing air bags 12.

Referring to fig. 10, the dry transformer assembly 5 includes a bottom bracket 51, a fan 52 and an iron core 53 are fixedly connected to the bottom bracket 51, an injection molding insulation winding 54 is sleeved outside the iron core 53, a heat dissipation air duct 541 and a temperature sensor are arranged inside the injection molding insulation winding 54, an air outlet of the fan 52 is aligned below the heat dissipation air duct 541, and when the dry transformer assembly 5 operates, the fan 52 blows heat up through the third air duct 211 through the heat dissipation air duct 541 and then discharges the heat through the first air duct 111 or the second air duct 13.

Referring to fig. 11 and 12, the limiting component 3 includes a movable push rod 31, the movable push rod 31 can move, both ends of the movable push rod 31 are provided with a pressing rod 32, a rotating point of the pressing rod 32 is rotationally connected with the inner wall of the shell 1, one end of the pressing rod 32 is fixedly connected with the movable push rod 31, and the movable push rod 31 can be driven to move by the pressing rod 32;

The other end of the pressing rod 32 is provided with a pressing rod fixedly connected, the movable push rod 31 is provided with pull rods 33 distributed in an array, the lower part of the movable push rod 31 is provided with a first limiting frame 34, the first limiting frame 34 is rotationally connected with the mounting frame 16, one end of the pull rod 33 is rotationally connected with the movable push rod 31, the other end of the pull rod 33 is rotationally connected with one end of the first limiting frame 34, and the movable push rod 31 drives the first limiting frame 34 to rotate through the pull rod 33 when moving.

The other end of the first limiting frame 34 is provided with a first movable frame 35 which is connected in a rotating way and a first baffle 341 which is connected in a fixed way, a torsion spring is arranged at the rotating position of the first movable frame 35, after the first movable frame 35 is shifted to be released again, the external force torsion spring can drive the first movable frame 35 to rotate and return to the original position, the first movable frame 35 is perpendicular to the other end of the first limiting frame 34 under the condition that no external force exists, and the first baffle 341 blocks the rotating direction of the first movable frame 35, so that the first movable frame 35 can only rotate towards the pull rod 33.

Referring to fig. 13 and 14, the moving assembly 4 includes an array distributed guiding bracket 41, the guiding bracket 41 is fixedly connected with the bottom end inside the casing 1, the guiding bracket 41 is in a shape of a "U", a second limiting bracket 47 which is rotationally connected is arranged inside the guiding bracket 41, driving wheels 42 which are distributed in array are rotationally arranged at the protruding positions on two sides of the guiding bracket 41, a rotating shaft 45 which penetrates through the guiding bracket 41 is arranged inside the guiding bracket 41, the rotating shaft 45 is rotationally connected with the guiding bracket 41, driving teeth 46 which are fixedly connected are arranged on the rotating shaft 45 in array, the number of the driving teeth 46 is the same as that of the guiding bracket 41, and the driving teeth 46 are driven to synchronously rotate when the rotating shaft 45 rotates;

a movable moving bracket 43 is arranged above the guide bracket 41, a bottom bracket 51 is fixedly connected with the moving bracket 43, two sides of the moving bracket 43 are tangent to the driving wheel 42, a through fixing hole 431 is formed in the tail end of the moving bracket 43, a rack 44 is fixedly connected to the lower end of the moving bracket 43, the rack 44 is meshed with the driving teeth 46, and the moving and stopping of the moving bracket 43 can be controlled by rotating the rotating shaft 45;

the second spacing 47 includes two limiting plates, two limiting plates are fixed to be set up and make second spacing 47 be "V" type structure setting, second spacing 47 is inside to be equipped with the staggered groove 471 that runs through, rack 44 passes staggered groove 471, second spacing 47 one end is equipped with the first leading wheel 472 of swivelling joint, the interval of first leading wheel 472 is greater than the length of fixed orifices 431, be equipped with the extension spring 475 of array distribution between second spacing 47 and the guide bracket 41, extension spring 475 lower extreme and second spacing 47 fixed connection, extension spring 475 top and second spacing 47 one end fixed connection, extension spring 475 pulling second spacing 47 rotates, drive first leading wheel 472 decline, the second spacing 47 other end is equipped with the second movable frame 473 of swivelling joint, the inside torsional spring that is equipped with of second movable frame 473, and only can rotate towards first leading wheel, one side that second movable frame 473 kept away from first leading wheel 472 is equipped with second leading wheel 474.

The first limiting frame 34 is inserted into the guide frame 41, the movable frame 43 pushes the first movable frame 35 to rotate when the movable frame 43 completely moves into the guide frame 41, the torsion spring drives the first movable frame 35 to reversely reset after the first movable frame 35 enters the fixing hole 431, at this time, the movable frame 43 cannot move, the fixing hole 431 is limited by the first movable frame 35 when the movable frame 43 moves towards the outside of the housing 1, and the fixing hole 431 is limited by the first baffle 341 when the movable frame 43 continues to move towards the inside of the housing 1.

When the movable bracket 43 is pulled out of the shell 1, the fixed relation between the fixed hole 431 and the first limiting frame 34 is unlocked firstly, then the rotary shaft 45 is driven to rotate by a wrench or an electric tool, the rotary shaft 45 drives the movable bracket 43 to advance to extend out of the shell 1, at the moment, the second guide wheel 474 and the first guide wheel 472 are both contacted with the lower part of the movable bracket 43, when the second movable frame 473 moves into the fixed hole 431, the tension spring 475 pulls the second limiting frame 47 to rotate, the first guide wheel 472 descends, the second movable frame 473 is inserted into the fixed hole 431, the fixed hole 431 is blocked by the second movable frame 473 to advance continuously, and then the front end suspension part of the movable bracket 43 is supported by the support rod, so that maintenance and overhaul of the dry transformer assembly 5 can be performed.

When the movable bracket 43 is pushed in from the outside of the housing 1, the fixed hole 431 toggles the second movable bracket 473 to rotate, and then the second movable bracket 473 is pushed under the movable bracket 43, so that the second limiting bracket 47 is pressed to reverse to pull the first guide wheel 472 to rise to contact under the movable bracket 43.

When the guide air-cooled dry-type transformer disclosed by the embodiment of the application is used, the jacking component 2, the limiting component 3 and the moving component 4 are firstly arranged in the shell 1, then the bottom bracket 51 is fixedly connected with the moving bracket 43, the sealing door 17 is closed after the cables are connected, when a temperature sensor in the injection-molded insulating winding 54 senses that the temperature in the shell 1 rises to a limiting value, the fan 52 is started to blow, and the air duct direction flows upwards from the bottom to the top of the shell 1.

When weather is good, the air pump 24 drives the tubular air bag 26 to extend, the lifting frame 21, the supporting plate 22 and the second sealing plate 23 are lifted, the supporting plate 22 jacks up the first sealing plate 15 from a horizontal sealing state to rotate and open, the second sealing plate 23 seals the second ventilation groove 13, heat in the whole shell 1 is discharged from the first ventilation groove 111 at the top, the whole air duct is a vertical air duct, and the heat dissipation effect is good.

When weather is overcast and rainy weather, the air pump 24 drives the tubular air bag 26 to shorten the length, the lifting frame 21, the supporting plate 22 and the second sealing plate 23 descend, the supporting plate 22 pulls the first sealing plate 15 to rotate from the inclined opening state to the horizontal sealing state, the second sealing plate 23 opens the second ventilation groove 13, heat inside the whole shell 1 is discharged from the second ventilation groove 13, the fixed baffle 112 shields the second ventilation groove 13 from rain, the whole air channel is a T-shaped air channel, the inner rainwater protection effect cannot be influenced during heat dissipation, and the inner water inflow condition is avoided.

When the water level sensor at the bottom end of the shell 1 detects that water enters the shell 1, the electromagnetic valve 262 is opened, the air pump 24 inflates the sealing air bag 12 to fill the gap between the sealing door 17 and the shell 1, the condition that the water continues to enter the shell 1 subsequently to affect the use of the dry-type transformer assembly 5 is avoided, and meanwhile, state information is sent to a control center through a network.

When the dry-type transformer assembly 5 needs to be overhauled, the cable connected with the dry-type transformer assembly 5 is disconnected firstly, then the movable push rod 31 and the pull rod 33 are driven to ascend by pressing the movable rod 32, the pull rod 33 pulls the first limiting frame 34 to rotate, the first movable frame 35 descends to be separated from the fixed hole 431, the rotating shaft 45 is driven to rotate by a spanner or an electric tool, the rotating shaft 45 drives the movable frame 43 to advance to extend out of the shell 1, at the moment, the second guide wheel 474 and the first guide wheel 472 are both in contact with the lower part of the movable frame 43, when the second movable frame 473 moves into the fixed hole 431, the second limiting frame 47 is pulled to rotate by a tension spring 475, the first guide wheel 472 descends, the second movable frame 473 is inserted into the fixed hole 431, the fixed hole 431 is blocked by the second movable frame 473 to be unable to continue advancing, then the front end of the movable frame 43 is supported by the support rod, and maintenance and overhauling of the dry-type transformer assembly 5 can be carried out.

When the movable support 43 is pushed in from the outer side of the shell 1 after maintenance is finished, the fixed hole 431 drives the second movable support 473 to rotate, then the second movable support 473 is extruded below the movable support 43, the second limiting support 47 is pressed to rotate reversely, so that the first guide wheel 472 is pulled to ascend to contact below the movable support 43, the first limiting support 34 is inserted into the tail end of the guide support 41, the movable support 43 is completely moved into the guide support 41, the movable support 43 pushes the first movable support 35 to rotate, when the first movable support 35 enters the fixed hole 431, the torsion spring drives the first movable support 35 to rotate reversely and return, at the moment, the movable support 43 cannot move, when the movable support 43 moves towards the outer side of the shell 1, the fixed hole 431 is limited by the first movable support 35, and when the movable support 43 continues to move towards the inner side of the shell 1, the fixed hole 431 is limited by the first baffle 341.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the protection scope of the technical solutions of the embodiments of the present application.

Claims (6)

1. The utility model provides a direction forced air cooling formula dry-type transformer, includes the shell, and one side of shell disposes sealed door, and is provided with dry-type transformer subassembly in the shell, its characterized in that still includes:

The top cover is arranged at the top end of the shell, a first ventilation groove is formed in the top end of the top cover in a penetrating mode, and a first sealing plate is rotationally arranged in the first ventilation groove; the bottom end of the first sealing plate is provided with a second guide strip;

The second ventilation grooves are arranged on two sides of the top end of the shell;

A fan arranged at one side of the dry-type transformer assembly, wherein the air outlet of the fan can be discharged out of the shell through the first ventilation groove or the second ventilation groove;

The jacking component is arranged in the shell and is used for switching different air guiding modes;

the moving assembly is configured at the bottom end of the dry-type transformer assembly and is used for driving the dry-type transformer assembly to partially move out of the shell;

Wherein, the jacking subassembly includes:

The lifting frame is arranged at the top end of the dry-type transformer component in a lifting manner;

the supporting plate is arranged at the top end of the lifting frame;

The first pushing wheel is rotatably arranged on one side of the supporting plate, facing the first ventilation groove, and is rotatably arranged on one side of the first sealing plate, and the first pushing wheel is inserted into the corresponding second guide strip and is in sliding fit with the second guide strip;

The second sealing plates are arranged on two sides of the lifting frame; when the lifting frame drives the first pushing wheel to push the first sealing plate so as to expose the first ventilation groove, the second sealing plate moves to the second ventilation groove along with the lifting frame to seal the second ventilation groove; when the lifting frame drives the first pushing wheel to enable the first sealing plate to block the first ventilation groove, the second sealing plate moves to enable the second ventilation groove to be opened;

Wherein the moving assembly comprises:

The guide bracket is configured at the bottom end of the shell;

The movable bracket is arranged at the bottom end of the guide bracket in a sliding manner, the dry-type transformer component is arranged at the top end of the movable bracket, and the movable bracket is driven by the movable bracket to drive the dry-type transformer component to partially move out of the shell;

The second limiting frame is rotatably arranged at the top end of the guide bracket; when the movable bracket is driven to drive the dry-type transformer component to partially move out of the shell, the second limiting frame can limit the movable bracket;

The second limiting frame comprises two limiting plates which are fixedly arranged; the two sides of the limiting plate are rotatably provided with first guide wheels, and the limiting plate is connected with the guide bracket through a tension spring; one end of the other limiting plate is rotatably provided with a second movable frame, and the second movable frame is arranged on one side of the limiting plate through a torsion spring, so that the second movable frame can only rotate towards the first guide wheel side; and a second guide wheel is arranged on one side of the second movable frame far away from the first guide wheel.

2. The directed air-cooled dry transformer of claim 1, wherein the jacking assembly further comprises:

The linear module is configured at the bottom end of the lifting frame and is used for driving the lifting frame to move.

3. The directed air-cooled dry transformer of claim 1, wherein a surrounding sealed air bag is disposed between the housing and the sealed door;

The jacking assembly further comprises:

a tubular air bag arranged below the lifting frame;

An air pump arranged at one side of the shell; and the air pump is communicated with the tubular air bag and the sealing air bag.

4. The directed air-cooled dry transformer of claim 1, further comprising: the limiting component is arranged in the shell and used for limiting the movable bracket in the shell;

Wherein, the fixed orifices has been seted up to the one end that the sealing door was kept away from to the movable support, spacing subassembly includes:

the first limiting frame is arranged on one side, far away from the sealing door, of the movable support, and the first limiting frame is rotatably arranged on a mounting frame;

The first movable frame is movably arranged on one side of the first limiting frame, and in a working state, the first movable frame penetrates through the fixed hole to limit the movable support;

The pull rod is rotationally arranged at one end, far away from the first movable frame, of the first limiting frame, and when the pull rod is pulled to enable the first limiting frame to rotate, the first movable frame is separated from the corresponding fixing hole so as to relieve the limitation of the movable support.

5. The air-cooled dry-type transformer of claim 4, wherein the first movable frame is rotatably disposed on one side of the first limiting frame through a torsion spring, and a first baffle is fixedly disposed on one side of the first limiting frame, and the first baffle limits the first movable frame to rotate towards the side far away from the pull rod.

6. The directed air-cooled dry transformer of claim 1, wherein the moving assembly further comprises:

the driving wheels are rotatably arranged on two sides of the guide bracket and are arranged on one side of the movable bracket in a manner of abutting against the guide bracket;

The rotating shaft penetrates through the guide bracket, and driving teeth are arranged on the outer side of the rotating shaft; and a rack is arranged on one side of the movable support, which faces the guide support, and is matched with the driving teeth.