CN220821247U

CN220821247U - Dampproofing dry-type transformer

Info

Publication number: CN220821247U
Application number: CN202322416739.8U
Authority: CN
Inventors: 白旭; 徐林年
Original assignee: Huaneng Lanzhou New Area Thermal Power Co ltd
Current assignee: Huaneng Lanzhou New Area Thermal Power Co ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-04-19
Anticipated expiration: 2033-09-06

Abstract

The utility model discloses a dampproof dry-type transformer, which relates to the technical field of transformers and comprises a main box body, wherein a mounting plate is fixed in the main box body, a ventilation cavity is formed between the mounting plate and the bottom of the main box body, a transformer main body is mounted on the mounting plate, an air hole communicated with the ventilation cavity is formed in the mounting plate on the outer side of the transformer main body, a radiating hole matched with the position of the air hole is formed in the top of the main box body, and a ventilation mechanism communicated with the ventilation cavity is mounted on the outer side of the main box body and used for ventilating and radiating the transformer main body in the main box body; the top of the main tank body is provided with a shielding plate and a shielding plate opening and closing mechanism, and the shielding plate is movably connected with the main tank body through the shielding plate opening and closing mechanism and is used for shielding the radiating holes and switching between diversion. The utility model ensures the heat dissipation of the device, and prevents the invasion of rainwater through the shielding plate, thereby achieving the dampproof function of the device.

Description

Dampproofing dry-type transformer

Technical Field

The utility model relates to the technical field of transformers, in particular to a moistureproof dry-type transformer.

Background

The dry type transformer is widely used in places such as local illumination, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply refers to a transformer with an iron core and windings not immersed in insulating oil, and in the working process of the dry type transformer, in order to enable internal devices of the dry type transformer to stably work, moisture-proof treatment is needed to be carried out on the internal devices of the dry type transformer, so that damage caused by overhigh humidity in the transformer is prevented;

Through retrieving, chinese patent grant publication No. CN 216054125U, publication No. 2022, no. 03, no. 15, a dry-type transformer with moisture-proof structure is disclosed, in this patent, it is pointed out that "the cooling tube and the external cooling device are connected to cool the inner wall of the protective case, thereby cooling the transformer body, the interior of the protective case can be dried through the drying agent, thereby moisture-proof protecting the transformer body, the blocking cover is detached from the limiting block and the drying agent can be replaced," in this patent, the dry-type transformer is subjected to moisture-proof treatment mainly by using the existence of the drying agent, although the moisture-proof treatment can be performed in this mode, the drying agent needs to be replaced regularly, it is inconvenient, and the transformer itself has a certain temperature during the operation, radiates heat under the flow of air, the phenomenon efficiency of moisture appears to be lower, the possibility of moisture appears only under the flow radiation of air in overcast and rainy weather, therefore in order to make the transformer capable of stably performing the moisture-proof treatment, and this scheme has been generated.

Disclosure of utility model

The utility model aims to provide a moistureproof dry-type transformer, which solves the problem of poor moistureproof effect in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the dampproof dry-type transformer comprises a main box body, wherein a mounting plate is fixed in the main box body, a ventilation cavity is formed between the mounting plate and the bottom of the main box body, a transformer main body is mounted on the mounting plate, an air hole communicated with the ventilation cavity is formed in the mounting plate on the outer side of the transformer main body, a radiating hole matched with the position of the air hole is formed in the top of the main box body, and a ventilation mechanism communicated with the ventilation cavity is mounted on the outer side of the main box body and used for ventilating and radiating the transformer main body in the main box body; the top of the main tank body is provided with a shielding plate and a shielding plate opening and closing mechanism, and the shielding plate is movably connected with the main tank body through the shielding plate opening and closing mechanism and is used for shielding the radiating holes and switching between diversion. The ventilation mechanism is communicated with the ventilation holes and the radiating holes in sequence through the ventilation cavity to form a radiating path for the transformer main body, meanwhile, the ventilation holes are formed in the outer side of the transformer main body, the radiating efficiency is improved through the skin effect of fluid, the shielding plate is movably connected with the main box body through the shielding plate opening and closing mechanism, after the shielding plate is opened, the inner wall of the shielding plate forms a guide wall for discharging hot air in the radiating holes, so that the device can stably conduct radiating work, after the shielding plate is closed, the shielding plate is utilized for shielding and protecting the radiating holes of the device, rainwater is prevented from invading, and the dampproof function of the device is achieved.

The ventilation mechanism comprises fans fixed on two sides of the box body, and the output end of each fan penetrates into the main box body through an air pipe to be communicated with the ventilation cavity.

A vertical plate is arranged in the center of the top of the main box body, a sealing rubber plate is fixed at the top of the vertical plate, and the shutter opening and closing mechanism comprises; the two electric telescopic rods and the supporting rods are distributed and fixed on two sides of the top of the main box body, the shielding plates are two, the middle of each shielding plate is distributed and hinged to the upper end of each supporting rod, the two electric telescopic rods are respectively located on two sides of the main box body, two ends of each electric telescopic rod are respectively hinged to the outer side of the main box body and the bottom of each shielding plate, and one end, far away from the electric telescopic rods, of each shielding plate is in tight contact with the sealing rubber plate.

Be provided with limit structure in the transformer main part, limit structure includes fixed plate, buckle clamp plate, lead screw and nut, the fixed plate is installed on the main tank inner wall of transformer both sides, and the fixed plate top is fixed with the lead screw, buckle clamp plate cooperation crimping is in the transformer top, buckles the clamp plate outside and cup joints on the lead screw through the perforation, the nut cooperation is connected on the lead screw and offsets with the buckle clamp plate surface. The top of the buckling pressing plate is limited through the nut, so that the buckling pressing plate is clamped on the transformer main body, the transformer main body is fixed and limited, and the transformer main body is maintained and protected in the later period.

The guide water tank is arranged at the top of the vertical plate, the guide water tank is obliquely arranged along the length direction of the vertical plate, the sealing rubber plate is fixedly arranged at the bottom of the guide water tank, and a guide water gap exists between the sealing rubber plate and the wall of the guide water tank. The water guide gap can collect the residual rainwater on the sealing rubber plate and discharge the rainwater outside the main box body through the inclined water guide groove.

The ventilation cavity is internally provided with a filter screen, the filter screen is positioned above an air pipe penetrating into the main box body, and the outer side of the filter screen is connected with the inner part of the main box body through a filter screen fixing frame.

Compared with the related art, the moisture-proof dry-type transformer provided by the utility model has the following beneficial effects:

According to the utility model, the ventilation mechanism is sequentially communicated with the ventilation holes and the radiating holes through the ventilation cavity to form a radiating path for the transformer main body, meanwhile, the ventilation holes are formed on the outer side of the transformer main body, the radiating efficiency is improved through the skin effect of fluid, the shielding plate is movably connected with the main box body through the shielding plate opening and closing mechanism, after the shielding plate is opened, the inner wall of the shielding plate forms a guide wall for discharging hot air in the radiating holes, so that the device can stably perform radiating work, and after the shielding plate is closed, the shielding plate is utilized for shielding and protecting the radiating holes of the device, so that the invasion of rainwater is prevented, and the dampproof function of the device is achieved.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is a schematic side cross-sectional view of the present utility model;

fig. 4 is a schematic top view of the present utility model.

In the figure: 1. a fixing bolt; 2. a filter screen; 3. a main case; 4. a fixed base; 5. an air pipe; 6. a mounting plate; 7. a transformer body; 8. a fixing plate; 9. an electric telescopic rod; 10. a support rod; 11. a buckling plate; 12. a shutter; 13. sealing the rubber plate; 14. a riser; 15. a heat radiation hole; 16. ventilation holes; 17. a nut; 18. a screw rod; 19. a blower; 20. a water guiding groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, embodiment 1 provides a moisture-proof dry-type transformer, including a main case 3, a fixing base 4 is installed at the bottom end of the main case 3, and four corners of the fixing base 4 are fixed in a region to be installed via fixing bolts 1, a mounting plate 6 is fixed inside the main case 3, a ventilation cavity is formed between the mounting plate 6 and the bottom of the main case 3, a transformer main body 7 is installed on the mounting plate 6, ventilation holes 16 communicated with the ventilation cavity are formed on the mounting plate 6 outside the transformer main body 7, a plurality of ventilation holes 16 surround the periphery of the transformer main body 7, a heat dissipation hole 15 adapted to the position of the ventilation holes 16 is formed at the top of the main case 3, a ventilator 19 structure communicated with the ventilation cavity is installed outside the main case 3, in this embodiment, the ventilator 19 structure includes fans 19 fixed at two sides of the case, the output ends of the fans 19 penetrate into the main case 3 via the air pipes 5 to be communicated with the ventilation cavity, the air pipes 5 are sequentially communicated with the ventilation holes 16 and the heat dissipation holes 15 to form a heat dissipation path to the transformer main body 7, and simultaneously, due to the ventilation holes 16 are formed on the main body 7, and the heat dissipation effect is improved by the heat dissipation effect of the fluid; the top of the main tank body 3 is provided with a shielding plate 12 and a shielding plate 12 opening and closing mechanism, and the shielding plate 12 is movably connected with the main tank body 3 through the shielding plate 12 opening and closing mechanism and is used for shielding the radiating holes 15 and switching between diversion. After the shielding plate 12 is opened, the inner wall of the shielding plate 12 forms a guide wall for exhausting hot air in the heat radiation holes 15, so that the device can stably conduct heat radiation work, after the shielding plate 12 is closed, the shielding plate 12 is utilized to shield and protect the heat radiation holes 15 of the device, and rainwater invasion is prevented, so that the dampproof function of the device is achieved.

A vertical plate 14 is arranged in the center of the top of the main box body 3, a sealing rubber plate 13 is fixed on the top of the vertical plate 14, and the opening and closing mechanism of the shielding plate 12 comprises; the two electric telescopic rods 9 and the supporting rods 10 are distributed and fixed on two sides of the top of the main box body 3, the number of the shielding plates 12 is two, the middle of each shielding plate 12 is distributed and hinged with the upper end of each supporting rod 10, the two electric telescopic rods 9 are respectively located on two sides of the main box body 3, two ends of each electric telescopic rod 9 are respectively hinged with the outer side of the main box body 3 and the bottom of each shielding plate 12, and one end, far away from the electric telescopic rod 9, of each shielding plate 12 is in tight contact with the sealing rubber plate 13. The sunshade 12 sets up to the inclined plane with sealing rubber 13 contact one end, and when electric telescopic handle 9 drove sunshade 12 in close contact on sealing rubber 13, two shutters 12 formed triangle-shaped slope, and then effectually rain-proof to main tank 3 top, and the preferred size of sunshade 12 width is greater than the width size of main tank 3.

The top of the vertical plate 14 is provided with a water guide groove 20, the water guide groove 20 is obliquely arranged along the length direction of the vertical plate 14, the sealing rubber plate 13 is fixedly arranged at the bottom of the water guide groove 20, a water guide gap exists between the sealing rubber plate 13 and the wall of the water guide groove 20, and preferably, the length of the vertical plate 14 is greater than the width of the main box body 3; the water guide gap can collect the rainwater remained on the sealing rubber plate 13 and discharge the rainwater outside the main box body 3 through the inclined water guide groove 20.

The transformer is characterized in that a limiting structure is arranged on the transformer main body 7 and comprises a fixing plate 8, a buckling plate 11, a screw rod 18 and a nut 17, wherein the fixing plate 8 is arranged on the inner wall of the main box body 3 at two sides of the transformer, the screw rod 18 is fixed on the top of the fixing plate 8, the buckling plate 11 is matched and pressed above the transformer, the outer side of the buckling plate 11 is sleeved on the screw rod 18 through a through hole, and the nut 17 is matched and connected to the screw rod 18 and abuts against the surface of the buckling plate 11; in order to improve the stability of buckling and pressing plate 11 when fixed, the lead screw 18 quantity on each fixed plate 8 is two and two lead screws 18 install side by side on fixed plate 8, simultaneously for reducing buckling and pressing plate 11 to the radiating influence of transformer main part 7, buckling and pressing plate 11 is grid type buckling and pressing plate 11, carries out spacingly through nut 17 to buckling and pressing plate 11 top to make buckling and pressing plate 11 card on transformer main part 7, so that be convenient for fix spacingly to transformer main part 7, be convenient for later stage maintain and protect transformer main part 7.

In order to avoid the fan 19 to bring in the foreign matter to the ventilation time in the main tank 3, influence the normal work of transformer main part 7, be equipped with filter screen 2 in the ventilation chamber, filter screen 2 is located the trachea 5 top that runs through in the main tank 3, and filter screen 2 outside is through filter screen 2 fixed frame and main tank 3 internal connection.

Working principle: as shown in fig. 1-4, when the device is used, firstly, the device can be installed by utilizing the existence of the fixing bolt 1 and the fixing base 4, then the device can utilize the driving of the fan 19 to guide air flow into the device through the air pipe 5 and filter the air flow through the filter screen 2 by utilizing the existence of the fan 19, after that, the air flow can enter the upper part of the mounting plate 6 through the air holes 16 to dissipate heat generated by the transformer main body 7 in the working process, finally, the heat is discharged through the heat dissipation holes 15, so that the device can stably conduct heat dissipation work, in the heat dissipation process of the device through air cooling, in order to realize the dampproof function of the device, by utilizing the existence of the electric telescopic rod 9, a user can enable the shielding plate 12 to move by utilizing the expansion of the electric telescopic rod 9, and the connecting relation of the shielding plate 12 and the supporting rod 10 is hinged, so that the shielding plate 12 rotates around the hinged position of the electric telescopic rod 9 under the expansion and the expansion action of the electric telescopic rod 9, and the device can enable the shielding plate 12 to rotate around the hinged position of the electric telescopic rod 9, so that the shielding plate 12 can be enabled to normally rotate to the inner wall of the shielding plate 12 and can be enabled to rotate to be in a closed state when the two shielding plates are enabled to rotate to be enabled to normally, and the shielding plate 12 can be enabled to rotate to be in a closed state and the inner wall is enabled to be in a state of being closed to be in contact with the air 13 and can be enabled to normally and a rain shield is enabled to be in a state is sealed 13.

It should be noted that while the embodiments of the present utility model have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made hereto without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a dampproofing dry-type transformer, includes main tank body, its characterized in that: the main box is characterized in that a mounting plate is fixed in the main box, a ventilation cavity is formed between the mounting plate and the bottom of the main box, a transformer main body is mounted on the mounting plate, ventilation holes communicated with the ventilation cavity are formed in the mounting plate on the outer side of the transformer main body, radiating holes matched with the ventilation holes are formed in the top of the main box, and a ventilation mechanism communicated with the ventilation cavity is mounted on the outer side of the main box and used for ventilating and radiating the transformer main body in the main box; the top of the main tank body is provided with a shielding plate and a shielding plate opening and closing mechanism, and the shielding plate is movably connected with the main tank body through the shielding plate opening and closing mechanism and is used for shielding the radiating holes and switching between diversion.

2. A moisture resistant dry transformer as claimed in claim 1, wherein; the ventilation mechanism comprises fans fixed on two sides of the box body, and the output end of each fan penetrates into the main box body through an air pipe to be communicated with the ventilation cavity.

3. A moisture resistant dry transformer as claimed in claim 1, wherein; a vertical plate is arranged in the center of the top of the main box body, a sealing rubber plate is fixed at the top of the vertical plate, and the shutter opening and closing mechanism comprises; the two electric telescopic rods and the supporting rods are distributed and fixed on two sides of the top of the main box body, the shielding plates are two, the middle of each shielding plate is distributed and hinged to the upper end of each supporting rod, the two electric telescopic rods are respectively located on two sides of the main box body, two ends of each electric telescopic rod are respectively hinged to the outer side of the main box body and the bottom of each shielding plate, and one end, far away from the electric telescopic rods, of each shielding plate is in tight contact with the sealing rubber plate.

4. A moisture resistant dry transformer as claimed in claim 3, wherein; be provided with limit structure in the transformer main part, limit structure includes fixed plate, buckle clamp plate, lead screw and nut, the fixed plate is installed on the main tank inner wall of transformer both sides, and the fixed plate top is fixed with the lead screw, buckle clamp plate cooperation crimping is in the transformer top, buckles the clamp plate outside and cup joints on the lead screw through the perforation, the nut cooperation is connected on the lead screw and offsets with the buckle clamp plate surface.

5. A moisture resistant dry transformer as claimed in claim 3, wherein; the guide water tank is arranged at the top of the vertical plate, the guide water tank is obliquely arranged along the length direction of the vertical plate, the sealing rubber plate is fixedly arranged at the bottom of the guide water tank, and a guide water gap exists between the sealing rubber plate and the wall of the guide water tank.

6. A moisture resistant dry transformer according to any one of claims 1 to 5, wherein; the ventilation cavity is internally provided with a filter screen, the filter screen is positioned above an air pipe penetrating into the main box body, and the outer side of the filter screen is connected with the inner part of the main box body through a filter screen fixing frame.