CN111210968A

CN111210968A - Novel box-type transformer

Info

Publication number: CN111210968A
Application number: CN201911341886.5A
Authority: CN
Inventors: 李长福; 陈军; 李麟凤; 史忠平; 徐恩超; 刘博�; 李飞; 丁玉成; 李富武; 丁霞
Original assignee: Tulufan Power Supply Co Of State Grid Xinjiang Electric Power Co ltd; State Grid Corp of China SGCC
Current assignee: Tulufan Power Supply Co Of State Grid Xinjiang Electric Power Co ltd; State Grid Corp of China SGCC
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-05-29

Abstract

The invention discloses a novel box-type transformer, which has reasonable design structure of an air inlet and an air outlet; the herringbone roof does not need to be erected independently, and the structure at the top of the box body is a flat top, so that the box is convenient to install and stable to use for a long time. In the invention, a position close to the bottom in the box body is provided with a partition plate, and the transformer body is fixed above the partition plate through a base; a hollow-out part is arranged on the partition plate corresponding to the transformer body, and a heat dissipation net is arranged in the hollow-out part; a cooling fan assembling plate for installing a cooling fan is arranged below the partition plate, and the cooling fan is driven to rotate by a driving motor and blows towards the cooling net; an air inlet assembly is arranged on one side of the box body, and an air exhaust hole is formed in the position, close to the top, of the side wall of the other side of the box body; the air inlet assembly comprises an air inlet channel, and an air opening at the bottom of the air inlet channel is positioned in the box body and below the cooling fan assembly plate; rain-proof eaves that slope downwardly extending are set up to box both sides.

Description

Novel box-type transformer

Technical Field

The invention relates to a box type transformer, in particular to a box type transformer installed outdoors.

Background

The box-type transformer is designed in a box-type shell in a centralized manner, has the advantages of small volume, light weight, low noise, low loss, high reliability and the like, and is widely applied to residential districts, commercial centers, light rail stations, airports, factories, mines, hospitals, schools and other places. The box-type transformer is not only a transformer, but also a small-sized substation, belongs to a power distribution station and directly provides power for users. When the transformer works, a large amount of heat can be generated and can be gathered in the box-type transformer, and if the heat is not dissipated in time, the service life of other power equipment in the box body can be seriously influenced;

the box-type transformer managed by our unit belongs to the mature technology in the market, and most of the designs for heat dissipation are external heat dissipation fins and internal heat dissipation fans; in recent years, improved heat dissipation technologies are also adopted, most of the improved heat dissipation technologies are designed with heat dissipation air channels, but most of heat dissipation air vents or air intake vents are arranged at the top of the box body, the heat dissipation is facilitated by the aid of the principle that heat rises, the air intake vents are designed at the top of the box body, smooth entering of external air above the box body is facilitated, and sundries are easily entered by the aid of the air intake vents arranged at the bottom of the box body; thus the top vent is an indispensable existing design; once the top vent is designed, the top must be designed with a corresponding dustproof and rainproof structure, and a herringbone roof is usually erected on the top, so that the structure causes the complexity of the top structure, is not favorable for maintenance, and is not favorable for quick assembly (installation processes such as hoisting and the like); the fact proves that the box-type transformer with the flat top is assembled more quickly, the top space is more stable in the using process, and the adaptability to severe environment is better.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects in the prior art and disclose a novel box-type transformer, wherein the air inlet and the air outlet are reasonable in design structure; the herringbone roof does not need to be erected independently, and the structure at the top of the box body is a flat top, so that the box is convenient to install and stable to use for a long time.

The technical scheme adopted by the invention for solving the technical problems is as follows: a novel box-type transformer comprises a box body and a transformer body arranged in the box body, wherein a partition plate is arranged in the box body and close to the bottom of the box body, and the transformer body is fixed above the partition plate through a base; a hollow-out part is arranged on the partition plate corresponding to the transformer body, and a heat dissipation net is arranged in the hollow-out part; a cooling fan assembling plate for installing a cooling fan is arranged below the partition plate, and the cooling fan is driven to rotate by a driving motor and blows towards the cooling net;

an air inlet assembly is arranged on one side of the box body, and an air exhaust hole is formed in the position, close to the top, of the side wall of the other side of the box body;

the air inlet assembly comprises an air inlet channel, and an air opening at the bottom of the air inlet channel is positioned in the box body and below the cooling fan assembly plate; the top of the air inlet channel is positioned at the position close to the top of the side surface of the box body, and the top of the air inlet channel is provided with an air inlet and a baffle plate for adjusting the size of an opening of the air inlet;

rain-proof eaves that slope downwardly extending are set up to box both sides.

As a preferred embodiment of the present invention: the air inlet is positioned right below the rain-proof eaves; the air inlet channel is provided with an air blower at the position of the air inlet; the central axis of the air exhaust holes is parallel to the rain sheltering eaves; the cooling fan is arranged in the fan mounting hole, and the fan mounting hole is formed in the cooling fan assembling plate; the base is provided with vent holes in the area corresponding to the radiating net.

As a preferred embodiment of the present invention: the top of the box body is provided with a radiating fin; the groove body between the radiating fins is a chute which is obliquely arranged at the bottom and is used for draining water.

As a preferred embodiment of the present invention: the position that keeps off the rain eaves lower surface and be close to the edge sets up protective baffle, and protective baffle includes the riser, and the riser middle part is provided with downwardly extending's horizontal folded plate, and the bottom of horizontal folded plate is less than the bottom of riser.

As a preferred embodiment of the present invention: the number of the heat radiation fans is more than two, and the number of the driving motors is one; an output shaft of the driving motor drives a driving shaft to rotate, the driving shaft is in the horizontal direction, and a rotating shaft of the cooling fan is in the vertical direction; a driven gear is arranged at the bottom of the rotating shaft of each cooling fan, and a driving gear meshed with each driven gear is arranged on the driving shaft; the driven gear and the driving gear form a bevel gear transmission pair; the driving shaft is rotatably installed through a plurality of bearings and fixedly installed on the cooling fan assembling plate through a bearing seat.

As a preferred embodiment of the present invention: an air distribution assembly is arranged on an air port at the bottom of the air inlet channel and comprises a drying assembly and a flow guide assembly; the drying component comprises a drying box, the front part and the rear part of the drying box are transparent, a ventilating drying shell is arranged in the drying box, and a drying agent is filled in the ventilating drying shell; the drying agent is made of silica gel; the drying box is also internally provided with a heater for heating the ventilated drying shell, and the heater is a heating wire wound on the surface of the ventilated drying shell; the guide assembly comprises a first guide plate perpendicular to the end face of the drying box far away from the air port, and a second guide plate and a third guide plate which are symmetrically arranged on two sides of the first guide plate, and the second guide plate and the third guide plate are of a splayed structure.

As a preferred embodiment of the present invention: the air inlet and the air outlet are both provided with insect-proof nets, and the outer sides of the insect-proof nets are also provided with grids; a temperature sensor is arranged in the box body; a controller is arranged below the radiating fan assembling plate in the box body; the controller is connected with the temperature sensor and the cooling fan.

As a preferred embodiment of the present invention: the box body has the overall dimensions of 2160mm in length, 1860mm in width and 1800mm in height; the heat radiation fan adopts a silent fan.

Compared with the prior art, the invention has the following advantages:

the invention discloses a novel box-type transformer.A partition plate is arranged in a position close to the bottom in a box body, and the interior of the box body is divided into a cooling fan space at the bottom and a transformer body space at the top by the partition plate; the heat dissipation fan blows the external air sent by the air inlet channel upwards from the bottom to the transformer body through the heat dissipation net arranged in the hollow part, so that the heat of the transformer body is taken away and finally discharged through the air outlet, and the heat dissipation wind direction is reasonable and efficient; one side of the box body is provided with an air inlet component, and the side wall of the other side is provided with an air exhaust hole close to the top; the air inlet of the air inlet assembly is positioned at the top of the outer side surface of the box body, the air exhaust hole is positioned at the position, close to the top, of the side wall of the box body, so that the air inlet and the air exhaust hole are both positioned at the positions close to the top, and the air inlet and air exhaust position as in the prior art is realized;

the air inlet assembly comprises an air inlet channel, wherein an air opening at the bottom of the air inlet channel is positioned in the box body and below the cooling fan assembly plate; the top of the air inlet channel is positioned at the position close to the top of the side surface of the box body, and the top of the air inlet channel is provided with an air inlet and a baffle plate for adjusting the size of an opening of the air inlet; the baffle is used for adjusting the air inlet area of the air inlet, so that the air inlet area can be adjusted, and the baffle can be manually adjusted on site or electrically controlled according to common knowledge in the field for electric adjustment; the air inlet area is adjusted to realize the adjustment of the air inlet quantity, thereby being beneficial to realizing different air inlet quantities according to the field conditions.

Rain shelters extending obliquely and downwards are arranged on two sides of the box body. The air inlet and the air exhaust hole are shielded by the rain shielding eaves, so that compared with the method of erecting a separate roof, the method is simpler and has lower cost; the rain-proof eaves also effectively realize the protection of the invention to the air inlet and the air outlet.

Drawings

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

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Description of reference numerals:

1-box, 2-chute, 3-heat sink, 4-rain-proof eave, 5-air inlet, 6-baffle, 7-vertical plate, 8-transverse folded plate, 9-blower, 10-air inlet channel, 11-transformer body, 12-cooling fan assembling plate, 13-cooling fan, 14-air distribution component, 15-driving shaft, 16-driven gear, 17-driving gear, 18-fan mounting hole, 19-bearing, 20-driving motor, 21-partition plate, 22-cooling net, 23-base, 24-internal air inlet, 25-air outlet;

141-a drying box, 142-a ventilated drying shell, 143-a drying agent, 144-a heater, 145-a first guide plate, 146-a second guide plate and 147-a third guide plate.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

1-2, which illustrate specific embodiments of the present invention; as shown in the figures, the novel box-type transformer disclosed by the invention comprises a box body and a transformer body 11 arranged in the box body, wherein a partition plate 21 is arranged in the box body 1 close to the bottom, and the transformer body 11 is fixed above the partition plate 21 through a base 23; a hollow-out part is arranged on the partition plate 21 corresponding to the transformer body 11, and a heat dissipation net 22 is arranged in the hollow-out part; a cooling fan assembling plate 12 for installing a cooling fan 13 is arranged below the partition plate 21, and the cooling fan 13 is driven to rotate by a driving motor 20 and blows air towards the cooling net 22; the heat dissipation net ensures that the air path is smooth on one hand, and prevents the damage of the lower fan caused by falling of sundries on the other hand; can be with the radiator-grid design for pull formula structure, regular cleaning can guarantee more outstanding ventilation effect. The part of the divider plate on the support base should have a solid foundation, i.e. sufficient support strength, to increase the strength of the weighing place of the divider plate by means of rooting in the bottom or by designing the support structure of the bottom separately.

An air inlet component is arranged on one side of the box body 1, and an air exhaust hole 25 is arranged on the side wall of the other side close to the top;

the air inlet assembly comprises an air inlet channel 10, and an air opening 24 at the bottom of the air inlet channel 10 is positioned in the box body 1 and below the cooling fan assembling plate 12; the top of the air inlet channel 10 is positioned at the position close to the top of the side surface of the box body 1, and the top of the air inlet channel 10 is provided with an air inlet 5 and a baffle 6 for adjusting the opening size of the air inlet; the baffle can be designed into a sliding structure for adjusting the size of the opening of the air inlet, and can also adopt a structure similar to a valve structure, and in short, the specific baffle mounting structure can adopt the existing known structure capable of adjusting the air inlet quantity.

Rain sheltering eaves 4 extending obliquely downwards are arranged on two sides of the box body 1.

Preferably, as shown in fig. 1: the air inlet 5 is positioned right below the rain-proof eave 4; the air inlet channel 10 is provided with an air blower 9 at the position of the air inlet 5; the air exhaust holes 25 are uniformly distributed and provided, and the central axis of each air exhaust hole is parallel to the rain-shielding eave 4 (the parallel of the axis and the rain-shielding eave means that the inclination angle of the axis is the same as that of the rain-shielding eave); the heat dissipation fan 13 is installed in a fan installation hole 18, and the fan installation hole 18 is formed in the heat dissipation fan assembling plate 12; the base 23 is provided with vent holes in the area corresponding to the heat dissipation net 22. The base can be hollowed out of the bottom of the transformer body as much as possible under the condition of ensuring enough supporting strength, and the upper space and the lower space of the partition plate are communicated, so that the ventilation and heat dissipation effects can be improved; the arrangement of the air blower is beneficial to increasing the air inflow and improving the heat dissipation effect; the inclined structure of the air exhaust holes is designed to prevent rainwater or sundries from floating in (compared with the common air exhaust holes arranged in the horizontal direction); the ventilation holes of the base are designed, so that the blowing of the fan can contact the transformer body more comprehensively, and more heat is taken away.

Preferably, as shown in fig. 1: the top of the box body is provided with a radiating fin 3; the trough body between the radiating fins 3 is a chute 2 which is obliquely arranged at the bottom and is used for draining water. The top fin is favorable to the heat dissipation, and the chute can let the top avoid ponding. The top is the passive radiating effect of heat that can greatly increase of increase fin behind the flat top, is favorable to practicing thrift the energy consumption, just that just the fan heat dissipation is just started when the heat dissipation can not reach the requirement.

Preferably, as shown in fig. 1: the position that keeps off 4 lower surfaces of eaves and be close to the edge sets up protective baffle, and protective baffle includes riser 7, and riser 7 middle part is provided with downwardly extending's horizontal folded plate 8, and the bottom of horizontal folded plate 8 is less than the bottom of riser 7. The disclosed guard flap of this embodiment can prevent that the terminal rainwater of backstop eaves is downflow in-process blown to air intake and exhaust hole position by wind, promotes the protective effect. The shape of the protective baffle is that the rain hidden trouble of the rain falling position after wind scraping is observed for rain-proof structures such as eave, and the like for a long time, so that the protective baffle is designed.

Preferably, as shown in fig. 1: the number of the heat radiation fans 13 is more than two, and the number of the driving motors 20 is one; an output shaft of the driving motor 20 drives the driving shaft 15 to rotate, the driving shaft 15 is in a horizontal direction, and a rotating shaft of the cooling fan 13 is in a vertical direction; a driven gear 16 is arranged at the bottom of the rotating shaft of each heat radiation fan 13, and a driving gear 17 meshed with each driven gear 16 is arranged on the driving shaft 15; the driven gear 16 and the driving gear 17 form a bevel gear transmission pair; the driving shaft 15 is rotatably installed through a plurality of bearings 19 and is fixedly installed on the cooling fan assembling plate 12 through a bearing housing. This embodiment blows the heat dissipation when realizing a plurality of radiator fan through a driven motor, reduces motor usage when raising efficiency and radiating effect, reduce cost. The invention mainly improves the design of the mechanical structure, and the specific electric control details can be realized by adopting the known technology in the field; details of mechanical structure parts, such as the fixing of the bevel gear, can adopt the detailed design of the existing bevel gear transmission pair, including the design of a gear box and the like.

Preferably, as shown in fig. 1 and 2: an air distribution component 14 is arranged on an air port 24 at the bottom of the air inlet channel 10, and the air distribution component 14 comprises a drying component and a flow guide component; the drying component comprises a drying box 141, the drying box 141 is transparent in the front and at the back, a ventilating drying shell 142 is arranged in the drying box 141, and a drying agent 143 is filled in the ventilating drying shell 142; the drying agent 143 is made of silica gel; a heater for heating the ventilated drying shell 142 is further arranged in the drying box 141, and the heater 144 is a heating wire wound on the surface of the ventilated drying shell; the flow guide assembly comprises a first flow guide plate 145 perpendicular to the end face of the drying box 141 far away from the air port 24, and a second flow guide plate 146 and a third flow guide plate 147 which are symmetrically arranged on two sides of the first flow guide plate 145, wherein the second flow guide plate 146 and the third flow guide plate 147 are in a splayed structure. The disclosed cloth wind subassembly of this embodiment can let the air inlet dry very first time, then through the water conservancy diversion dispersion, is favorable to being blown to the transformer body behind the installation space of the dry and dispersed entering fan of outside air.

Preferably, as shown in fig. 1: the air inlet 5 and the air outlet 25 are both provided with insect-proof nets, and the outer sides of the insect-proof nets are also provided with grids; a temperature sensor is arranged in the box body 1; a controller is arranged below the cooling fan assembling plate 12 in the box body 1; the controller is connected with the temperature sensor and the cooling fan. The embodiment designs an insect prevention structure to prevent mosquitoes from entering; the temperature sensor and the controller are designed to realize intelligent control.

Preferably, as shown in the figure: the box body has the overall dimensions of 2160mm in length, 1860mm in width and 1800mm in height; the heat radiation fan adopts a silent fan.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a new-type box transformer, contains box and the transformer body of setting in the box, its characterized in that: a partition plate is arranged in the box body and close to the bottom, and the transformer body is fixed above the partition plate through a base; a hollow-out part is arranged on the partition plate corresponding to the transformer body, and a heat dissipation net is arranged in the hollow-out part; a cooling fan assembling plate for installing a cooling fan is arranged below the partition plate, and the cooling fan is driven to rotate by a driving motor and blows towards the cooling net;

rain-proof eaves that slope downwardly extending are set up to box both sides.

2. A new box transformer according to claim 1, characterized in that: the air inlet is positioned right below the rain-proof eaves; the air inlet channel is provided with an air blower at the position of the air inlet; the central axis of the air exhaust holes is parallel to the rain sheltering eaves; the cooling fan is arranged in the fan mounting hole, and the fan mounting hole is formed in the cooling fan assembling plate; the base is provided with vent holes in the area corresponding to the radiating net.

3. A new box transformer according to claim 1, characterized in that: the top of the box body is provided with a radiating fin; the groove body between the radiating fins is a chute which is obliquely arranged at the bottom and is used for draining water.

4. A new box transformer according to claim 1, characterized in that: the position that keeps off the rain eaves lower surface and be close to the edge sets up protective baffle, and protective baffle includes the riser, and the riser middle part is provided with downwardly extending's horizontal folded plate, and the bottom of horizontal folded plate is less than the bottom of riser.

5. A new box transformer according to claim 1, characterized in that: the number of the heat radiation fans is more than two, and the number of the driving motors is one; an output shaft of the driving motor drives a driving shaft to rotate, the driving shaft is in the horizontal direction, and a rotating shaft of the cooling fan is in the vertical direction; a driven gear is arranged at the bottom of the rotating shaft of each cooling fan, and a driving gear meshed with each driven gear is arranged on the driving shaft; the driven gear and the driving gear form a bevel gear transmission pair; the driving shaft is rotatably installed through a plurality of bearings and fixedly installed on the cooling fan assembling plate through a bearing seat.

6. A new box transformer according to claim 1, characterized in that: an air distribution assembly is arranged on an air port at the bottom of the air inlet channel and comprises a drying assembly and a flow guide assembly; the drying component comprises a drying box, the front part and the rear part of the drying box are transparent, a ventilating drying shell is arranged in the drying box, and a drying agent is filled in the ventilating drying shell; the drying agent is made of silica gel; the drying box is also internally provided with a heater for heating the ventilated drying shell, and the heater is a heating wire wound on the surface of the ventilated drying shell; the guide assembly comprises a first guide plate perpendicular to the end face of the drying box far away from the air port, and a second guide plate and a third guide plate which are symmetrically arranged on two sides of the first guide plate, and the second guide plate and the third guide plate are of a splayed structure.

7. A new box transformer according to claim 1, characterized in that: the air inlet and the air outlet are both provided with insect-proof nets, and the outer sides of the insect-proof nets are also provided with grids; a temperature sensor is arranged in the box body; a controller is arranged below the radiating fan assembling plate in the box body; the controller is connected with the temperature sensor and the cooling fan.

8. A new box transformer according to claim 1, characterized in that: the box body has the overall dimensions of 2160mm in length, 1860mm in width and 1800mm in height; the heat radiation fan adopts a silent fan.