CN110189892B

CN110189892B - Dustproof heat abstractor of transformer

Info

Publication number: CN110189892B
Application number: CN201910509735.XA
Authority: CN
Inventors: 杨娴; 贾志坚
Original assignee: Hunan City University
Current assignee: Hunan City University
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2021-07-23
Anticipated expiration: 2039-06-13
Also published as: CN110189892A

Abstract

The invention discloses a dustproof heat dissipation device for a transformer. The transformer comprises a transformer, radiating fin groups and an umbrella-shaped fan, wherein the radiating fin groups are arranged on the periphery of the transformer, and the transformer is characterized in that the umbrella-shaped fan is further arranged on the top of the transformer, the diameter of the umbrella-shaped fan is larger than the side length of the transformer, an umbrella shape is formed, the umbrella-shaped fan can be used for shading sun, and air cooling can be performed on the top and the periphery. The umbrella-shaped fan is arranged at the top of the transformer, power does not need to be additionally provided, the umbrella-shaped fan can automatically rotate under the action of natural wind, the sun-shading effect can be achieved even if no wind exists, the influence of an external transformer is reduced, and the wind from the fan can flow onto each radiating fin along with the radiating fins in the staggered design, so that the wind of each radiating fin flows mutually to take away heat, and the radiating effect is better.

Description

Dustproof heat abstractor of transformer

Technical Field

The invention relates to a transformer, in particular to a dustproof heat dissipation device of a transformer.

Background

In the use process of the power transformer, current is electromagnetically converted through the primary winding, the secondary winding and the silicon steel sheet iron core, partial electric energy is converted into useless heat energy, the heat energy is dissipated as soon as possible without taking measures, the performance and the electricity utilization safety of the transformer are adversely affected, the power transformer is currently produced or used in China, a radiator is an iron flat tubular component which surrounds the periphery of a box body and is communicated with oil phase of the transformer in the box body, the heat dissipation section is small due to the modeling, meanwhile, the heat conductivity coefficient of aluminum is three times that of iron, and the iron radiator of the current power transformer has the defects of two aspects of structure and material, so that the transformer has poor heat dissipation performance, and is not beneficial to energy conservation and the development of the operation potential of power equipment; meanwhile, metal material science researches show that metal iron is easy to oxidize, aluminum materials are stable, the smooth aluminum material surface has the characteristic of reflecting infrared rays in sunlight, and iron has the characteristic of absorbing infrared rays, so that the power transformer which is in an open working environment in summer and is provided with the iron radiator can increase extra heat due to sunshine factors, and is not beneficial to heat dissipation of equipment; most of the existing transformer radiators are made of aluminum alloy sections, the outer surfaces of the existing transformer radiators are flat, the radiating straight fins are flat up and down, and the heat conducting and radiating effects are still not ideal.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a dustproof heat dissipation device for a transformer, which can improve the heat conduction effect and accelerate the heat dissipation speed.

In order to achieve the purpose, the technical solution of the invention is as follows: a dustproof heat dissipation device for a transformer comprises the transformer, heat dissipation fin groups and an umbrella-shaped fan, wherein the heat dissipation fin groups are arranged on the periphery of the transformer, and the dustproof heat dissipation device is characterized in that the umbrella-shaped fan is further arranged on the top of the transformer, the diameter of the umbrella-shaped fan is larger than the side length of the transformer, an umbrella shape is formed, the umbrella-shaped fan can be used for shading sun, and air cooling can be performed on the top and the periphery.

The umbrella-type fan comprises a fixed seat, blades, a wind cap, a bearing and a rotating shaft, wherein the bottom surface of the fixed seat is connected with the top of the transformer, the top surface of the fixed seat is connected with the bearing, the bearing is connected with the rotating shaft, the rotating shaft is spliced with the blades through a splicing position, the top end of the rotating shaft is connected with the wind cap, the rotating shaft is driven to rotate by natural wind blowing blades, and air flows rapidly to take away heat.

The blade comprises sector plate and protruding post, protruding post side is as an organic whole with the welding of the perpendicular limit of sector plate, inserts the grafting position of rotation axis through protruding post in, through the grafting position and the protruding post that are provided with joint each other on rotation axis and blade respectively, when the blade inserts the grafting position from the surface of rotation axis in, protruding post block goes into in the grafting position and with grafting phase joint, the relative rotation axis swing back and forth of blade this moment, protruding post also can't deviate from the grafting position, guarantees the reliable connection of blade and rotation axis, prevents that the blade from droing from the rotation axis, and then can guarantee the normal operating of umbrella-type fan.

The radiating fin group is formed by a plurality of radiating fins which are uniformly arranged in a crossed mode, the cross sections of the radiating fins are triangular tree fork-shaped and connected with the transformer, the radiating fins comprise air guide radiating planes and air guide arc forks, the air guide arc forks are arranged outwards in a staggered mode, so that upper or lower air is collected from the middle and led to the next radiating fin, or natural air blown from the front side is dispersed to the upper end and the lower end, air flowing is promoted, and the radiating effect is improved.

The radiating fins are gamma-shaped radiating fins made of aluminum alloy, and the aluminum alloy plate has the advantages of quick heat radiation, light weight and favorable heat radiation and transportation.

The invention has the advantages that the umbrella-shaped fan which is similar to the axial flow fan in principle is arranged at the top of the transformer and is used for shading sun and fanning, the umbrella-shaped fan can rotate under the action of natural wind without providing additional power as long as air flows, the umbrella-shaped fan can automatically rotate to fan the transformer, so that the heat dissipation and sun shading effects are achieved, blades can rotate for twenty-four hours without stopping and can play a role of shading sun without wind, the influence of an external transformer is reduced, because the umbrella-shaped fan rotates frequently to generate air flow, dust is not easy to attach to the fan and the heat dissipation fins, so that the dustproof effect is effectively achieved, the wind power driving principle is utilized, the operation without power and cost is achieved, the air which is blown out can flow onto each heat dissipation fin along with the heat dissipation fins which are designed in a staggered mode, so that each heat dissipation fin blows away heat, the heat dissipation effect is better.

Drawings

FIG. 1 is a schematic axial view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic view of an axial structure of an umbrella-shaped fan;

FIG. 5 is a schematic view of the main structure of the umbrella fan;

FIG. 6 is a schematic structural view of a rotating shaft of an umbrella-shaped fan;

FIG. 7 is a schematic structural view of an umbrella fan blade;

FIG. 8 is a schematic view of a fin structure;

in the figure: 1-transformer, 2-radiating fin, 3-umbrella-type fan, 21-wind-guiding radiating plane, 22-wind-guiding arc fork, 31-fixing seat, 32-blade, 33-hood, 34-bearing, 35-rotating shaft, 351-plug position, 321-sector plate and 322-protruding column.

Detailed Description

The present invention and its embodiments are described in further detail below with reference to the accompanying drawings.

Referring to fig. 1-8, the transformer comprises a transformer 1, radiating fin groups and an umbrella-shaped fan 3, wherein the radiating fin groups are arranged on the periphery of the transformer 1, and the transformer is characterized in that the umbrella-shaped fan 3 is further arranged on the top of the transformer 1, and the diameter of the umbrella-shaped fan is larger than the side length of the transformer 1.

Umbrella-type fan 3 includes fixing base 31, blade 32, hood 33, bearing 34, rotation axis 35, the fixing base 31 bottom surface is connected with transformer 1's top, and the top surface is connected with bearing 34, and this bearing is connected with rotation axis 35, rotation axis 35 has a plurality of blades 32 through inserting position 351 grafting, the top and the hood 33 of rotation axis 35 are connected.

The vane 32 is composed of a sector plate 321 and a protruding column 322, the side surface of the protruding column 322 is welded with the vertical edge of the sector plate 321 into a whole, and is inserted into the insertion position 351 of the rotating shaft 35 through the protruding column 322.

The radiating fin group is formed by a plurality of radiating fins 2 which are uniformly arranged in a crossed mode, the sections of the radiating fins 2 are triangular tree fork-shaped and are connected with the transformer 1, each radiating fin 2 comprises an air guide radiating plane 21 and an air guide arc fork 22, and the air guide arc forks 22 are arranged outwards in a staggered mode. The extending direction of the wind guide radiating plane 21 is vertical to the extending plane of the fan blade 32, and the wind from the fan can flow to each radiating fin along with the radiating fins designed in a staggered mode.

The radiating fins 2 are gamma-shaped radiating fins made of aluminum alloy.

The concept principle of the invention is as follows: the invention relates to a transformer 1, wherein the front, back, left and right four surfaces of the transformer are respectively provided with a radiating fin group, the top is provided with an umbrella-shaped fan 3 for shading sun and fanning, the radiating fin group is formed by a plurality of radiating fins 2 which are staggered and relatively distributed and welded on the shell surface of the transformer, the wind guide radiating plane 21 of the radiating fins is inward, so that the radiating fin group forms a radiating fin group which can enable wind to mutually circulate, the section of the radiating fin 2 is gamma-shaped, when the wind blows to the wind guide radiating plane 21, the wind guide arc fork 22 guides the wind to the side opposite to the wind guide arc fork, the wind flows to the next radiating fin 2 until the wind flows out of the radiating fin group, a fixed seat 31 of the umbrella-shaped fan 3 is connected with the top of the transformer 1, the middle position of the fixed seat is connected with a bearing 34, a rotating shaft 35 is inserted on the bearing 34, and an insertion position 351 of the rotating shaft 35 is inserted with a protruding column 322 of a blade 32, the top and the hood 33 of this rotation axis are connected, and during the start of a wind, rotation axis 35 is taken to blade 32 rotatory, and the wind that produces among the rotation process blows and takes away the heat to transformer 1 and radiating fin 2, plays radiating effect, and this setting need not to do any change to transformer 1, is fit for different models, and adaptability is wider to structure and preparation are all very simple, are fit for promoting.

Claims

1. A dustproof heat dissipation device for a transformer comprises the transformer, heat dissipation fin groups and an umbrella-shaped fan, wherein the heat dissipation fin groups are arranged on the periphery of the transformer;

the umbrella-shaped fan comprises a fixed seat, blades, a wind cap, a bearing and a rotating shaft, wherein the bottom surface of the fixed seat is connected with the top of the transformer, the top surface of the fixed seat is connected with the bearing, the bearing is connected with the rotating shaft, the rotating shaft is inserted with the blades through insertion positions, and the top end of the rotating shaft is connected with the wind cap; the blade consists of a sector plate and a raised column, the side surface of the raised column is welded with the vertical edge of the sector plate into a whole, and the raised column is inserted into the inserting position of the rotating shaft;

the radiating fin group is formed by uniformly arranging a plurality of radiating fins in a crossed manner, the sections of the radiating fins are triangular tree fork-shaped and are connected with a transformer, the radiating fins comprise air guide radiating planes and air guide arc forks, and the air guide arc forks are arranged outwards in a staggered manner; the radiating fins are gamma-shaped radiating fins made of aluminum alloy; the extending direction of the wind guide radiating plane is vertical to the extending plane of the blades of the fan, and the wind from the fan can flow to each radiating fin along with the radiating fins in the staggered design.