CN216311538U

CN216311538U - Waterproof transformer

Info

Publication number: CN216311538U
Application number: CN202122971678.2U
Authority: CN
Inventors: 孙军
Original assignee: Inner Mongolia Mengxing Transformer Co ltd
Current assignee: Inner Mongolia Mengxing Transformer Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-15
Anticipated expiration: 2031-11-30

Abstract

The application provides a waterproof type transformer, includes: the transformer comprises a transformer main body and a shell, wherein the transformer main body is arranged in the shell, the bottom of the shell is provided with an air inlet hole group, and the upper end of the shell is provided with an exhaust device; the exhaust device comprises an exhaust box, the middle part of the lower end of the exhaust box is hermetically connected with an air guide pipe extending to the interior of the exhaust box, the outer diameter of the air guide pipe is smaller than the inner diameter of the exhaust box, the upper end of the exhaust box is provided with an exhaust hole group positioned on the outer side of the air guide pipe, the lower end of the exhaust box is provided with a drain hole group positioned on the outer side of the air guide pipe, the exhaust box is connected with a rotatable rotating shaft, one end of the rotating shaft extends to the interior of the shell and is fixed with exhaust blades, the other end of the rotating shaft extends to the upper side of the exhaust box and is fixed with vertical wind blades, and the air guide pipe is communicated with the interior of the shell and is hermetically connected with the interior of the shell. This application not only can carry out waterproofly to the transformer main part, can carry out high-efficient heat dissipation to the transformer main part moreover, has effectively improved the life of transformer main part.

Description

Waterproof transformer

Technical Field

The application relates to a transformer technology, in particular to a waterproof transformer.

Background

The transformer is one of main equipment of a power plant and a substation, and has the functions of increasing voltage to transmit electric energy to a power utilization area and reducing the voltage to use voltage of each level so as to meet the power utilization requirement in many aspects. In any case, both the step-up and step-down must be done by a transformer. In the process of transmitting electric energy in a power system, voltage loss and power loss are necessarily generated, wherein the voltage loss is inversely proportional to the voltage when the same power is transmitted, and the power loss is inversely proportional to the square of the voltage. The voltage is increased by the transformer, and the power transmission loss is reduced.

The transformer is usually installed in the open air, and therefore when meeting rainy weather, the rainwater easily permeates to the inside of the transformer, leads to the burning of the power transformer, brings loss and potential safety hazard for people, and can not satisfy the user's demand. In order to prolong the service life of the transformer, waterproof transformers are mostly adopted in the existing outdoor transformers. However, the transformer generates heat during operation, most of the existing waterproof transformers can only dissipate heat through natural wind, the heat dissipation effect of the heat dissipation method is poor, and the resistance value of an iron core inside the transformer is increased due to heat accumulation after the transformer works for a long time, so that the generated heat is increased, and the transformer is damaged or exploded due to vicious circle.

SUMMERY OF THE UTILITY MODEL

The application provides a waterproof transformer for solve the poor problem of waterproof transformer radiating effect of current outdoor use.

The application provides a waterproof type transformer, includes: the transformer comprises a transformer main body and a shell, wherein the transformer main body is arranged in the shell, the bottom of the shell is provided with an air inlet hole group, and the upper end of the shell is provided with an exhaust device;

the exhaust device comprises an exhaust box, the middle of the lower end of the exhaust box is connected with an air guide pipe extending into the exhaust box in a sealing mode, the outer diameter of the air guide pipe is smaller than the inner diameter of the exhaust box, an exhaust hole group located on the outer side of the air guide pipe is arranged at the upper end of the exhaust box, a drain hole group located on the outer side of the air guide pipe is arranged at the lower end of the exhaust box, the exhaust box is concentrically and rotatably connected with a rotating shaft in a sealing mode, one end of the rotating shaft extends into the shell and is fixedly provided with exhaust blades, the other end of the rotating shaft extends to the upper portion of the exhaust box and is fixedly provided with vertical wind blades, and the air guide pipe is installed at the upper end of the shell and is communicated with the inside of the shell and is connected with the shell in a sealing mode.

Optionally, the housing includes a casing, the casing is a hollow structure with an opening at an upper end and one side end, the opening end of the casing is detachably and hermetically connected with a sealing cover in a matching manner, the bottom of the casing is provided with a plurality of uniformly distributed air inlet holes, the air inlet holes form the air inlet hole group, and each air inlet hole is hermetically provided with a dust screen;

the upper end of the sealing cover is provided with a mounting hole, the air guide pipe is connected with the mounting hole in a sealing mode, and a mounting frame is fixed at the bottom of the shell.

Optionally, the high-voltage terminal and the low-voltage terminal of the transformer main body are both connected with wires, and all the wires extend out of the side closed end of the housing and are hermetically connected with the side closed end of the housing.

Optionally, the exhaust hole group is composed of a plurality of exhaust holes which are uniformly distributed, and the plurality of exhaust holes are annularly distributed and located on the outer side of the air guide pipe.

Optionally, each exhaust hole is hermetically connected with an exhaust pipe positioned at the upper end of the exhaust box, and the upper end of the exhaust pipe is provided with a dust screen.

Optionally, the drainage hole group is composed of a plurality of drainage holes which are uniformly distributed, and the plurality of drainage holes are annularly distributed and located on the outer side of the air guide pipe.

Optionally, the number of the exhaust devices is two and the exhaust devices are symmetrically distributed.

Compared with the prior art, the beneficial effect of this application is:

the waterproof transformer is provided with a shell, an exhaust device is arranged at the upper end of the shell, wherein the exhaust device comprises an exhaust box, the bottom of the exhaust box is connected with an air guide pipe extending to the interior of the exhaust box, the air guide pipe is arranged at the upper end of the shell and is communicated with the interior of the shell, an exhaust hole group is arranged at the upper end of the exhaust box, a drain hole group is arranged at the lower end of the exhaust box, the exhaust hole group and the drain hole group are both positioned at the outer side direction of the air guide pipe, the exhaust box is provided with a rotating shaft, one end of the rotating shaft extends to the inner upper part of the shell and is fixedly provided with an exhaust blade, the other end of the rotating shaft extends to the upper part of the exhaust box and is fixedly provided with a vertical wind blade, a plurality of air inlet holes are arranged at the bottom of the shell, so that hot air in the shell flows upwards and enters the air guide pipe, hot air in the air guide pipe flows upwards and enters the exhaust box, and hot air in the exhaust box flows upwards and is exhausted to the external environment from the exhaust pipe, the characteristic that hot air flows upwards is adopted, so that the purpose of effective heat dissipation can be achieved, and the service life of the transformer main body is effectively prolonged. And when external wind can drive the vertical wind blades to rotate, the vertical wind blades drive the rotating shaft to rotate, the rotating shaft drives the exhaust blades to rotate, the exhaust blades can drive air in the shell to flow upwards after rotating, then the air enters the air guide pipe, enters the exhaust box from the air guide pipe, and finally is exhausted from the exhaust hole group of the exhaust box, so that the upward flow of the air in the shell can be accelerated, and the heat dissipation effect of the transformer main body is effectively improved. In addition, when rainy day, because drainage hole group and exhaust hole group all are located the outside of air duct to and the air duct extends to inside the exhaust case, consequently the rainwater gets into the blast pipe after, directly falls into exhaust case bottom and discharges from drainage hole group, and then can avoid the rainwater to get into inside the shell from the air duct, the waterproof effect of cooperation shell simultaneously can effectively be waterproof to the transformer main part, has effectively improved the factor of safety and the life of transformer main part.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic front view of a waterproof transformer according to an embodiment of the present application;

fig. 2 is a schematic top view of a watertight transformer according to an embodiment of the present disclosure;

fig. 3 is a schematic front view cross-sectional structure diagram of a waterproof transformer according to an embodiment of the present application;

fig. 4 is a schematic front sectional view of an exhaust device of a waterproof transformer according to an embodiment of the present disclosure;

fig. 5 is a schematic top sectional view of a housing of a waterproof transformer according to an embodiment of the present disclosure;

fig. 6 is an enlarged schematic view of the area a in fig. 3.

Description of reference numerals: the transformer comprises a transformer body 1, a high-voltage terminal 2, a low-voltage terminal 3, a mounting frame 4, a shell 5, a sealing cover 6, an air inlet hole group 7, an exhaust device 8, an exhaust box 9, an air guide pipe 10, an exhaust hole group 11, a water discharge hole group 12, a rotating shaft 13, an exhaust blade 14, a vertical wind blade 15, a slot 16, an inserting plate 17, a first threaded hole 18, a second threaded hole 19, a locking bolt 20, a sliding rail 21, a sliding groove 22, a lead 23 and an exhaust pipe 24.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present application, but not all of the 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 application.

As shown in fig. 1 to 6, a waterproof transformer according to an embodiment of the present application includes: the transformer comprises a transformer main body 1 and a shell, wherein the transformer main body 1 is installed inside the shell in a bolt connection mode, an air inlet hole group 7 is arranged at the bottom of the shell, and an exhaust device 8 is installed at the upper end of the shell;

the exhaust device 8 comprises an exhaust box 9, a wind guide pipe 10 extending into the exhaust box 9 is connected to the middle of the lower end of the exhaust box 9 in a sealing mode, the outer diameter of the wind guide pipe 10 is smaller than the inner diameter of the exhaust box 9, an exhaust hole group 11 located on the outer side of the wind guide pipe 10 is arranged at the upper end of the exhaust box 9, a drain hole group 12 located on the outer side of the wind guide pipe 10 is arranged at the lower end of the exhaust box 9, a rotating shaft 13 is concentrically and rotatably connected to the upper end of the exhaust box 9 in a sealing mode, one end of the rotating shaft 13 extends into the shell and is detachably fixed with an exhaust blade 14, the other end of the rotating shaft 13 extends to the upper portion of the exhaust box 9 and is detachably fixed with a vertical wind blade 15, and the wind guide pipe 10 is installed at the upper end of the shell and is communicated with the interior of the shell and is connected in a sealing mode.

Specifically, a round hole is formed in the middle of the lower end of the exhaust box 9, the air guide pipe 10 penetrates through the round hole and extends into the exhaust box 9, and the circumferential side end of the air guide pipe 10 is connected with the edge of the round hole in a sealing welding mode; the rotating shaft 13 is rotatably connected with the upper end of the exhaust box 9 by adopting a sealed bearing connection mode.

The working principle of the above embodiment is as follows: install inside the shell through transformer main part 1, the shell bottom is equipped with inlet opening group 7, and the outside that 12 and the exhaust opening group 11 of drain opening all are located the air duct, the air duct extends to inside the exhaust case 9, make when meetting rainy day, the rainwater can not get into inside the shell from the inlet opening group 7 of shell and its bottom, and the rainwater that gets into 9 insides of exhaust opening group from 11 in addition can in time follow the 12 discharges of drain opening group, can not get into inside the shell from the air duct, and then can effectively prevent water to transformer main part 1.

When the transformer body 1 works to generate heat inside the shell, according to the characteristic that hot air flows upwards, the hot air in the shell flows upwards and enters the air guide pipe 10, the hot air in the air guide pipe 10 flows upwards and enters the air exhaust box 9, the hot air in the air exhaust box 9 flows upwards and is exhausted to the external environment from the air exhaust pipe 24, meanwhile, the external air enters from the bottom of the shell and exchanges heat with the transformer body 1, and then the transformer body 1 can be effectively cooled.

In addition, when external wind energy can drive the vertical wind blades 15 to rotate, the vertical wind blades 15 drive the rotating shaft 13 to rotate, the rotating shaft 13 drives the exhaust blades 14 to rotate, the exhaust blades 14 can drive air in the shell to flow upwards after rotating, then the air enters the air guide pipe 10, enters the exhaust box 9 from the air guide pipe 10, and finally is exhausted from the exhaust hole group 11 of the exhaust box 9, so that the air in the shell can be accelerated to flow upwards, and the heat dissipation effect of the transformer main body 1 is effectively improved.

In some embodiments of the present application, the housing includes a casing 5, the casing 5 is a hollow structure with an upper end and one side end opened, the open end of the casing 5 is detachably and sealingly connected with an adaptive sealing cover 6, the bottom of the casing 5 is provided with a plurality of uniformly distributed air inlet holes, the plurality of air inlet holes form an air inlet hole group 7, and each air inlet hole is sealingly provided with a dust screen.

Specifically, a slot 16 is formed in the upper left end of the shell 5, an inserting plate 17 corresponding to and adapted to the slot 16 is fixed at the bottom of the sealing cover 6 in a welding mode, a first threaded hole 18 is formed in the middle of the inserting plate 17, a second threaded hole 19 concentric with and communicated with the first threaded hole 18 is formed in the left end of the shell, the second threaded hole 19 and the first threaded hole 18 are identical in structure, and a locking bolt 20 can be meshed with the second threaded hole 19 and the first threaded hole 18 at the same time; two slide rails 21 which are symmetrically distributed front and back and are in a T-shaped structure are fixed at the lower part of the right end of the shell 5 in a welding mode, and sliding grooves 22 which correspond to the two sliding grooves 22 one by one and are matched are formed in the sealing cover 6; the shell 5 is in contact connection with the sealing cover 6, a sealing strip is fixed on the contact end of the shell 5 and the sealing cover 6 in an adhesive mode, and the sealing strip is made of elastic materials.

Wherein, the upper end of the sealing cover 6 is provided with a mounting hole, the air guide pipe 10 is communicated with the mounting hole and is hermetically connected in a sealing welding mode, and the bottom of the shell 5 in a welding mode is fixed with the mounting rack 4.

The working principle of the above embodiment is as follows: the transformer body 1 can be easily mounted inside the case 5 by providing the case 5 with upper and side end openings.

When the sealed lid 6 of installation, earlier with the vertical downstream of sealed lid 6, when picture peg 17 and slot 16 plug-in connection, and spout 22 is connected the back with the cooperation of slide rail 21, sealed lid 6 and sealing strip contact, then push down sealed lid 6, make sealed lid 6 sticis the sealing strip, and first screw hole 18 is concentric with second screw hole 19, at last with locking bolt 20 simultaneously with first screw hole 18 and second screw hole 19 mesh simultaneously be connected can, not only have higher leakproofness, the dismouting of the sealed lid 6 of being convenient for, and sealed lid 6 has higher steadiness after the installation.

In some embodiments of the present application, the lead wires 23 are connected to both the high voltage terminal 2 and the low voltage terminal 3 of the transformer body 1, and all the lead wires 23 extend out of the side closed end of the housing 5 and are hermetically connected with the side closed end of the housing 5.

Specifically, the side closed end of the shell is provided with a through hole corresponding to the lead 23, a sealing ring is concentrically and hermetically arranged in the through hole in an adhesive mode and is made of an elastic material, and the lead 23 penetrates through the sealing ring and tightly presses the sealing ring.

The working principle of the above embodiment is as follows: the connecting position of the lead 23 and the high-voltage terminal 2 and the connecting position of the lead 23 and the low-voltage terminal 3 are both positioned in the shell, so that the connecting position of the lead 23 and the high-voltage terminal 2 and the connecting position of the lead 23 and the low-voltage terminal 3 can be prevented from contacting rainwater. And the lead 23 is penetrated out from the side end of the shell and is connected with a sealing ring between the lead and the shell, so that rainwater can be prevented from entering the shell from the through hole.

In some embodiments of the present application, the exhaust hole set 11 is composed of a plurality of exhaust holes distributed uniformly, and the plurality of exhaust holes are distributed annularly and located outside the air guide duct 10.

Each exhaust hole is hermetically connected with an exhaust pipe 24 positioned at the upper end of the exhaust box 9 in a welding and sealing mode, and the upper end of the exhaust pipe 24 is provided with a dust screen. Through being equipped with exhaust pipe 24, can prevent that the rainwater that falls to the upper end of row's bellows 9 from getting into row's bellows 9, and then reduce the inflow in row's bellows 9.

The drain hole group 12 is composed of a plurality of drain holes uniformly distributed, and the plurality of drain holes are annularly distributed and located outside the air guide duct 10.

In some embodiments of the present application, the number of the exhaust devices 8 is two and the exhaust devices are symmetrically distributed, so as to improve the heat dissipation efficiency inside the casing.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A waterproof transformer comprising: transformer main part (1), shell, transformer main part (1) is installed the inside of shell, its characterized in that:

the bottom of the shell is provided with an air inlet hole group (7), and the upper end of the shell is provided with an exhaust device (8);

the exhaust device (8) comprises an exhaust box (9), the middle part of the lower end of the exhaust box (9) is hermetically connected with an air guide pipe (10) extending into the exhaust box, and the outer diameter of the air guide pipe (10) is smaller than the inner diameter of the exhaust box (9);

the upper end of the air exhaust box (9) is provided with an exhaust hole group (11) positioned outside the air guide pipe (10);

the lower end of the air exhaust box (9) is provided with a water exhaust hole group (12) positioned outside the air guide pipe (10);

the air exhaust box (9) is concentrically and rotatably connected with a rotating shaft (13) in a sealing manner;

one end of the rotating shaft (13) extends into the shell and is fixed with an exhaust blade (14), and the other end of the rotating shaft (13) extends above the exhaust box (9) and is fixed with a vertical wind blade (15);

the air guide pipe (10) is arranged at the upper end of the shell and is communicated with the interior of the shell in a sealing manner.

2. The waterproof transformer according to claim 1, wherein: the shell comprises a shell (5), the shell (5) is of a hollow structure with an opening at the upper end and one side end, the opening end of the shell (5) is detachably and hermetically connected with a sealing cover (6) in an adaptive manner, the bottom of the shell (5) is provided with a plurality of uniformly distributed air inlet holes, the air inlet holes form an air inlet hole group (7), and each air inlet hole is hermetically provided with a dust screen;

the upper end of the sealing cover (6) is provided with a mounting hole, the air guide pipe (10) is connected with the mounting hole in a sealing mode, and the bottom of the shell (5) is fixed with the mounting frame (4).

3. The waterproof transformer according to claim 2, wherein: the high-voltage wiring end (2) and the low-voltage wiring end (3) of the transformer main body (1) are connected with wires (23), and all the wires (23) extend out of the side closed end of the shell (5) and are connected with the side closed end of the shell (5) in a sealing mode.

4. The waterproof transformer according to claim 1, wherein: the exhaust hole group (11) is composed of a plurality of exhaust holes which are uniformly distributed, and the exhaust holes are annularly distributed and are positioned on the outer side of the air guide pipe (10).

5. The waterproof transformer according to claim 4, wherein: each exhaust hole is hermetically connected with an exhaust pipe (24) positioned at the upper end of the exhaust box (9), and the upper end of the exhaust pipe (24) is provided with a dust screen.

6. The waterproof transformer according to claim 1, wherein: the drainage hole group (12) is composed of a plurality of uniformly distributed drainage holes which are distributed annularly and are positioned on the outer side of the air guide pipe (10).

7. The waterproof transformer according to any one of claims 1 to 6, wherein: the number of the exhaust devices (8) is two and the exhaust devices are symmetrically distributed.