KR20080055270A - Radiant heat appatatus for transformer - Google Patents

Abstract

A heat radiating apparatus for a transformer is provided to prevent oxidation or deterioration of the transformer by embedding the transformer inside a vacuum transformer case. A heat radiating apparatus for a transformer(53) includes a housing(10), a blower fan(30), a transformer case(50), a thermosyphon(70), and an aero fin(90). The housing has a vent hole(13) to admit and exhaust external air. The blower fan is installed inside the housing to admit and exhaust the external air through the vent hole. The vacuum transformer case receives the transformer therein, and an upper end thereof is received inside the housing. A lower end of the thermosyphon passes through an upper surface of the transformer case to be fixed, and an upper end thereof is bent to be placed at an upper part of the blower fan. The thermosyphon radiates heat of the transformer inside the housing. The aero fin is spirally installed on an outer periphery of the thermosyphon.

Description

Radiator of transformer {RADIANT HEAT APPATATUS FOR TRANSFORMER}

1 is a view showing an embodiment of the present invention,

2 is a view showing a state in which heat generated from a transformer is radiated to the outside,

3 is a view illustrating a state in which rainwater does not flow into the housing due to the downwardly inclined vent.

*** Explanation of symbols for main parts of drawing ***

10; A housing, 13; ventilation opening;

30; Blower fan, 50; Transformer case,

53; Transformer, 53a; core,

70; Thermocyphon, 73; Working fluid,

90; Aerofin.

In the present invention, since the heat generated from the transformer is radiated to the outside by the thermosiphon having excellent thermal conductivity, it is not necessary to radiate the heat generated from the transformer to the outside by using insulating oil which has a detrimental effect on the environment and the worker. Of course, since the transformer is embedded in the transformer case in a vacuum state, not only can the transformer be prevented from being oxidized or deteriorated, but the heat generated from the transformer can be radiated to the outside with higher efficiency, and the housing The present invention relates to a heat dissipation device of a transformer that can prevent the possibility of rain or snow flowing into the interior.

In general, a transformer is a device that converts high-voltage or extra-high voltage power supplied by a power company according to the voltage of a load device used in a factory or a hospital. It is roughly divided into a type | formula and a gas-type transformer.

In this case, the inflow transformer prevents dust and moisture from penetrating into the transformer body housed in the transformer case and lowers the dielectric strength, and heats the heat generated by the transformer body by convection or radiation and simultaneously oxidizes the same. It is a hermetic structure filled with insulating oil which is safe for the easy to manufacture and has a wide range of use.

On the other hand, polychlorinated chlorine (PCB) is usually used as the insulating oil used in the inflow transformer.

However, the polychlorinated bichloride is a chlorine-based free compound, which is harmful to the environment due to strong toxicity, persistence and bioaccumulation, as well as a fatal adverse effect on the health of the worker.

The present invention was created in order to solve the above-mentioned problems, and since the heat generated from the transformer is dissipated to the outside by the thermosiphon having excellent thermal conductivity, the insulating oil has a fatal adverse effect on the environment and the worker. Not only does the heat generated from the transformer need to be dissipated to the outside, but also the transformer is built into the transformer case in a vacuum state, thereby preventing the transformer from being oxidized or deteriorated. It is an object of the present invention to provide a heat dissipation device of a transformer capable of dissipating heat to the outside with higher efficiency and preventing rain or snow from flowing into the housing.

The present invention for achieving the above object is a housing formed with a vent opening and the outside air inlet and exhaust; A blowing fan provided inside the housing to introduce and exhaust the external air into the vent; A transformer case in a vacuum state in which an upper end is accommodated in the housing, and a transformer is embedded therein; A thermosiphon having a lower end fixed through the upper surface of the transformer case, the upper end being bent to be positioned above the blowing fan, and dissipating heat generated from the transformer into the housing; Aero fins provided spirally on the outer circumference of the thermosiphon; wherein heat generated from the transformer is radiated to the inside of the housing by the thermosiphon to the ventilation hole by the blower fan. It provides a heat dissipation device of the transformer, characterized in that the heat radiation to the outside with the inlet and exhaust air.

In addition, it provides a heat dissipation device of the transformer, characterized in that the vent formed in the housing is inclined downward.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Of course, the scope of the present invention is not limited to the following examples, and various modifications can be made by those skilled in the art without departing from the technical gist of the present invention.

1 is a view showing an embodiment of the present invention.

First, the heat dissipation device of an embodiment of the present invention is largely as shown in Figure 1, the housing 10, the blowing fan 30, the transformer case 50, the thermosiphon 70 and the aero fin 90 It is configured to include.

In this case, as shown in FIG. 1, the housing 10 is provided with a vent 13 through which external air is introduced and exhausted.

Due to the ventilation hole 13, the external air may be introduced into the housing 10 and then exhausted.

In addition, an inside of the housing 10 is provided with a blowing fan 30 for introducing and exhausting the outside air into the ventilation hole 13 as shown in FIG. 1.

The shape and structure of the housing 10 configured as described above are not limited to FIG. 1, but may be formed in a shape and a structure capable of forming and providing the ventilation holes 13 and the blowing fan 30.

Next, the blower fan 30 is for introducing and exhausting the outside air into the vent 13, and is provided in the housing 10 as described above.

The shape and structure of the blower fan 30 as described above are also not limited to FIG. 1.

Next, the transformer case 50 is for accommodating a transformer 53 having a core 53a therein, and an upper end thereof is accommodated in the housing 10 as shown in FIG. 1.

Here, the inside of the transformer case 50 is in a vacuum state.

That is, the transformer 53 is built in the transformer case 50 in a vacuum state.

When the transformer 53 is embedded in the transformer case 50 in a vacuum state, the transformer 53 may be prevented from being oxidized or deteriorated in contact with air.

The shape and structure of the transformer case 50 as described above is not limited to FIG. 1, but is sufficient if the transformer case 50 has a shape and a structure capable of accommodating the transformer 53 therein.

Next, the thermosiphon 70 is for dissipating heat generated from the transformer 53 embedded in the transformer case 50 in a vacuum state to the inside of the housing 10. As shown, the lower end is fixed through the upper surface of the transformer case 50, the upper end is bent to be positioned above the blowing fan 30.

Here, the thermosiphon (70) is filled with a predetermined working fluid 73 in a metal sealed tube having excellent thermal conductivity and heat generated from any heat exchange object by tropical flow and gravity action of the working fluid (73). By heat transfer to the outside, such a thermosiphon 70 is well known, so detailed description thereof will be omitted.

Here, since the lower end of the thermosiphon (70) is fixed through the upper surface of the transformer case 50 between the heat generated from the transformer 53 built in the transformer case 50 and the thermostat The phone 70 can be in contact with each other.

In addition, since the thermosiphon 70 has a function of transferring heat to the outside as described above, the heat generated from the transformer 53 is transferred to the housing 10 by the thermosiphon 70. Heat dissipation inside

On the other hand, the heat generated from the transformer 53 is radiated to the inside of the housing 10 by the thermosiphon 70 excellent in thermal conductivity, and then to the ventilation hole 13 by the blower fan 30. The heat is radiated to the outside together with the inlet and exhaust air, which will be described in detail later.

The shape and structure of the thermosiphon 70 as described above is not limited to FIG. 1, and radiates heat generated from the transformer 53 embedded in the transformer case 50 to the inside of the housing 10. It is sufficient if it is made of a shape and a structure that can be made.

Next, the aero fin 90 is to improve the thermal conductivity of the thermosiphon 70, as shown in Figure 1 is provided on the outer periphery of the thermosiphon 70 in a spiral width at a predetermined width do.

Thus, when the aero fin 90 is provided in a spiral on the outer circumference of the thermosiphon 70 in a spiral, the heat generated from the thermosiphon 70 and the transformer 53 is in contact with a larger area. In this case, the thermal conductivity of the thermosiphon 70 may be remarkably improved, thereby dissipating heat generated by the transformer 53 to the outside with higher efficiency.

The shape and structure of the aerofin 90 as described above is not limited to FIG. 1, but is sufficient if it is made of a shape and structure that can improve the thermal conductivity of the thermosiphon 70.

2 is a diagram illustrating a state in which heat generated in the transformer 53 is radiated to the outside.

On the other hand, as described above, the heat generated from the transformer 53 is radiated to the inside of the housing 10 by the thermosiphon 70 having excellent thermal conductivity, and then the ventilation hole by the blower fan 30. Heat radiation to the outside together with the external air introduced and exhausted to (13) is as follows.

However, FIG. 2 shows that the heat generated from the transformer 53 is radiated to the outside as ① to ④.

First, heat generated in the transformer 53 embedded in the transformer case 50 in a vacuum state comes into contact with the lower end of the thermosiphon 70 as shown in ① of FIG. 2.

In this case, the thermosiphon 70 dissipates heat generated by the transformer 53 into the housing 10.

On the other hand, the external air is introduced into the housing 10 through the vent hole 13 by the driving of the blower fan (30).

At this time, the external air introduced into the housing 10 passes through the ventilation fan 13 after passing through the blower fan 30 and the thermosiphon 70 as shown in ② and ③ of FIG. 2. Through the exhaust.

Here, the thermosiphon 70 is in a state of dissipating heat generated by the transformer 53 into the housing 10.

Here, when the external air introduced into the housing 10 is exhausted to the outside through the vent 13 through the thermosiphon 70, the thermosiphon 70 is the housing 10. Heat radiating to the inside of the heat), that is, heat generated from the transformer 53 also moves along the outside air to radiate heat to the outside as shown in ④ of FIG. 2.

Due to the above process, the heat generated from the transformer 53 can be radiated to the outside.

After the heat generated from the transformer 53 embedded in the transformer case 50 in a vacuum state is radiated to the inside of the housing 10 by the thermosiphon 70 having excellent thermal conductivity. Heat dissipated to the outside with the external air introduced and exhausted into the vent 13 by the blower fan 30, and thus generated from the transformer 53 by using insulating oil that adversely affects the environment and the worker. There is no need to dissipate heat to the outside.

FIG. 3 is a view illustrating a state in which rainwater does not flow into the housing 10 due to the downwardly inclined vent 13.

On the other hand, the ventilation hole 13 formed in the housing 10 is formed to be inclined downward as shown in FIGS.

Here, the reason why the ventilation holes 13 are formed to be inclined downward is to prevent rain water or snow from flowing into the housing 10.

For example, the rainwater does not flow into the housing 10 because the rainwater flows downward along the direction of inclination of the vent 13 as shown in FIG. 3.

According to the present invention configured as described above, the heat generated from the transformer built into the transformer case is radiated into the housing by the thermosiphon having excellent thermal conductivity, and then flows into the vent by the blower fan. And by radiating heat to the outside with the outside air that is exhausted, it is not necessary to dissipate heat generated in the transformer to the outside by using insulating oil which has a bad effect on the environment and workers as in the prior art, as well as the vacuum state of the transformer Since it is embedded in the transformer case, there is an effect that can prevent the transformer from being oxidized or deteriorated.

In addition, the heat generated from the thermosiphon and the transformer may be contacted with a larger area by the aerofins provided in a spiral shape on the outer circumference of the thermosiphon, whereby the thermal conductivity of the thermosiphon is remarkable. In this way, the heat generated from the transformer can be radiated to the outside with higher efficiency.

In addition, since the ventilation hole formed in the housing is inclined downward, rain or snow flows downward along the downward inclination surface of the ventilation hole, thereby preventing the possibility of rain or snow flowing into the housing. It can work.

In addition, the present invention is not limited to what has been described above and illustrated in the drawings, and of course, more modifications and variations are possible within the scope of the following claims.

Claims (2)

A housing having a vent opening through which external air is introduced and exhausted; A blowing fan provided inside the housing to introduce and exhaust the external air into the vent; A transformer case in a vacuum state in which an upper end is accommodated in the housing, and a transformer is embedded therein; A thermosiphon having a lower end fixed through the upper surface of the transformer case, the upper end being bent to be positioned above the blowing fan, and dissipating heat generated from the transformer into the housing; Aero fins provided spirally on the outer circumference of the thermosiphon; wherein heat generated from the transformer is radiated to the inside of the housing by the thermosiphon to the ventilation hole by the blower fan. Radiating device of the transformer, characterized in that the heat radiation to the outside with the inlet and exhaust air outside. The method of claim 1, The heat dissipation device of the transformer, characterized in that the vent formed in the housing is inclined downward.

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