KR20080018562A - A thermal change color radiator - Google Patents

Abstract

A temperature-sensitive color changing radiator is provided to allow a manager to check overload of a transformer by having a temperature-sensitive color changing unit changed in case of the overload of the transformer or overheating of insulating oil. A temperature-sensitive color changing radiator is installed at a side of a transformer(10) and includes an upper header(21), a lower header(22), and a plurality of radiating plates(23). The upper header is coupled to an upper coupler(11) at an upper part of the side of the transformer. The lower header is coupled to a lower coupler(12) at a lower part of the side of the transformer. The plurality of radiating plates are installed between the upper and lower headers. A temperature-sensitive color changing unit(30) is installed at any one of the upper header, the lower header, and the radiating plates, and a color thereof is changed when a temperature of insulating oil is over a predetermined temperature.

Description

Temperature sensitive color radiator {A thermal change color radiator}

1 is a perspective view of a thermochromic radiator according to the present invention,

2 is a view for explaining that the temperature-sensitive discoloration unit is formed on the heat sink surface of FIG.

3 is a view for explaining that the temperature-sensitive color fading portion is formed on the upper surface 1/2 surface of the heat sink of FIG.

4 is a view for explaining that the first and second temperature-sensitive color fading portion is formed in the heat sink of FIG.

5 is a view for explaining that the sub-temperature sensitive discoloration unit is formed on the heat sink of FIG.

6 is a view for explaining that the temperature-sensitive color fading portion is formed at the end of the upper header of FIG.

<Description of Signs of Major Parts of Drawings>

10 ... Transformer

11 ... upper coupler

12 ... lower coupler

20 ... radiator

21 ... upper header

22 ... lower header

23 ... heat sink

30, 130, 230, 330, 430 ... temperature sensitive

231, 232 ... 1st, 2nd temperature sensitive fading part

331,332,333,334,335,336 ... 1st, 2nd, 3rd, 4th, 5th, 6th Sub-Temperature Discoloration

The present invention relates to a temperature sensitive fading radiator installed in a transformer.

The transformer is an important component of the power system for raising or lowering the voltage of the transmission and distribution line, and heat is generated by the magnetic action of the current, which causes the temperature rise of the insulating oil and the pressure rise inside the transformer. In order to prevent this temperature and pressure rise, a radiator is installed in the transformer.

The radiator has upper and lower headers provided on upper and lower sides of the transformer, and a plurality of heat sinks installed in communication between the upper and lower headers. By this structure, heat generated in the transformer is transferred to the radiator through the insulating oil, the radiator cools the insulating oil by the heat sink in contact with the outside air, thereby preventing the transformer from overheating.

By the way, when the overload is applied to the transformer or the excessive heat generated by the failure, the radiator is not able to lower the temperature of the transformer, but there was no way to confirm this from the outside. As a result, the transformer remains overheated, resulting in a dangerous situation such as an explosion of the transformer. In particular, in the summer when the use of the air conditioner increases, there is a problem that the explosion situation of the transformer frequently occurs due to the overload.

The present invention has been made to solve the above problems, it is an object of the present invention to provide a temperature-sensitive fading radiator that can be notified when the temperature inside the transformer is higher than the set value.

In order to achieve the above object, the temperature-sensitive color fading radiator according to the present invention is installed on the side of the transformer 10 in which the insulating oil and the transformer is built, the upper coupler 11 of the upper side of the transformer 10 The upper header 21 connected to the lower header 22 connected to the lower coupler 12 of the lower side of the transformer 10 and the upper header 21 and the lower header 22 to communicate with each other. In a radiator including a plurality of heat sinks 23 to be provided, at least one of the upper header 21, the lower header 22, and the heat sink 23 has a temperature of the insulating oil flowing in is a predetermined temperature or more. When the color-changing temperature-sensitive color change is characterized in that formed. At this time, it is preferable that a protective layer is formed on the upper surface of the temperature sensitive discoloration portion to prevent the temperature sensitive discoloration portion from being damaged by the external environment.

In the present invention, the temperature sensitive discoloration unit 30 is formed on the entire surface of the heat sink 23.

In the present invention, the temperature sensitive discoloration unit 130 is formed on the upper half of the surface of the heat sink 23.

In the present invention, the temperature sensitive discoloration unit 230 is formed on the surface of the heat sink 23, the first temperature sensitive discoloration unit 231 is discolored at a predetermined first temperature, and at a predetermined second temperature The second temperature-sensitive color change unit 232 is discolored. At this time, the second temperature-sensitive discoloration unit 232 has a letter shape.

In the present invention, the temperature sensitive discoloration unit 330 is formed on the surface of the heat sink 23, and at least three or more sub-temperature sensitive discoloration units discolored at different temperatures.

In the present invention, the temperature sensitive discoloration unit 430 is formed at an end of the upper header 21.

Hereinafter, with reference to the accompanying drawings will be described in detail a radiator according to the present invention.

1 is a perspective view of a temperature sensitive fading radiator according to the present invention.

As shown, according to the radiator according to the present invention, which is installed on the side of the transformer 10 in which the insulating oil and the transformer is embedded, the upper header 21 connected to the upper coupler 11 of the upper side of the transformer 10 ), A lower header 22 connected to the lower coupler 12 below the side of the transformer 10, and a plurality of heat sinks 23 installed in communication between the upper header 21 and the lower header 22. Include.

The radiator 20 is provided with a temperature sensitive discoloration unit 30 that changes color when the temperature of the insulating oil flowing in is higher than or equal to a predetermined temperature and the temperature of the radiator becomes excessively high. The temperature sensitive discoloration unit 30 is provided on at least one of the upper header 21, the lower header 22, and the heat sink 23. At this time, a protective layer is formed on the upper surface of the temperature sensitive discoloration part 30 to prevent the temperature sensitive discoloration part 30 from being damaged by an external environment. This will be described in more detail as follows.

FIG. 2 is a view for explaining that the temperature sensitive discoloration unit is formed on the heat sink surface of FIG. 1.

As shown, the temperature sensitive discoloration portion 30 is formed on the entire surface of the heat sink 23. And, when there are a plurality of heat sinks 23, of course, they are also formed on the entire surface of the remaining heat sinks. In this case, when the temperature of the insulating oil flowing in is higher than or equal to a predetermined temperature, for example, 80 ° C. or higher, the heat sink 23 gradually overheats from the upper header 21 side to the lower header 22 side, whereby the heat sink 23 The temperature sensitive discoloration unit 30 formed on the entire surface of the c) is gradually discolored from the upper header 21 side to the lower header 22 side as the heat sink 23 is overheated.

FIG. 3 is a view for explaining that a temperature sensitive discoloration part is formed on the upper 1/2 surface of the heat sink of FIG. 1.

As shown, the temperature sensitive discoloration unit 130, as shown in Figure 3, is formed on the upper surface of the heat sink 23, at this time formed only on the upper side surface of about 1/2 of the surface of the heat sink 23 It is. In this case, when the introduced insulating oil is at a predetermined temperature or more, for example, 80 ° C. or more, the temperature sensitive discoloration part 130 formed on the upper side of the heat sink 23 is discolored.

4 is a view for explaining that the first and second temperature-sensitive color fading portion is formed in the heat sink of FIG.

As shown, the temperature sensitive discoloration unit 230 is formed on the surface of the heat dissipation plate 23 and the first temperature sensitive discoloration unit 231 discolored at a predetermined first temperature, and discolored at a predetermined second temperature. The second temperature sensitive discoloration unit 232 is formed. In this embodiment, the first temperature sensitive discoloration unit 231 is discolored at a predetermined first temperature, for example, 80 ° C, and the second temperature sensitive discoloration unit 232 is at a predetermined second temperature, for example, 90 ° C. It discolors in the above.

The first temperature sensitive discoloration unit 231 may be formed on the entire surface of the heat sink 23 in a manner similar to that of FIG. 2, and the upper side of about 1/2 of the surface of the heat sink 23 in a manner similar to that of FIG. 3. It may be formed only on the surface. In the present embodiment, as shown in FIG. 3, only one half of the upper surface is described as an example.

The second temperature sensitive discoloration unit 232 may be formed on the upper surface of the first temperature sensitive discoloration unit 231, or may be formed on the surface of the heat sink 23 on which the first temperature sensitive discoloration unit 231 is not formed. have. In the present exemplary embodiment, the second temperature sensitive discoloration unit 232 is formed on the surface of the first temperature sensitive discoloration unit 231 by way of example.

That is, the first temperature sensitive discoloration portion 231 is formed on the upper half surface of the heat sink 23, and the second temperature sensitive discoloration portion 232 is formed on the surface of the first temperature sensitive discoloration portion 231. do. At this time, the second temperature-sensitive discoloration unit 232 is preferably formed in the shape of a warning letter "warning" or "danger".

In the case of forming the first and second temperature sensitive discoloration parts 231 and 232 as described above, when the temperature of the insulating oil to be introduced is, for example, 80 ° C. or more, the first temperature sensitive discoloration part 231 is discolored. It can be confirmed that an overload is applied to the transformer 10 or there is an error. When the load applied to the transformer 10 exceeds the capacity that the transformer 10 can withstand, the temperature of the insulating oil may be 90 ° C. or more, in which case the second temperature sensitive discoloration unit 232 is discolored. The warning text "Warning" or "Danger" is expressed. Accordingly, the manager can more systematically grasp the dangerous situation of the transformer 10.

FIG. 5 is a view for explaining that the sub-temperature sensitive discoloration unit is formed on the heat sink of FIG. 1.

As shown, the temperature sensitive discoloration unit 330 is formed on the surface of the heat sink 23, and includes at least three or more sub-temperature sensitive discoloration units which are discolored at different temperatures. In this embodiment, the first sub-temperature sensitive discoloration unit 331 discolored at a predetermined first temperature, for example, 70 ° C., and the second sub-temperature sensitive discoloration discolored at a predetermined second temperature, for example, 75 ° C. The part 332, the third sub-temperature sensitive color change part 333 discolored at a predetermined third temperature, for example, 80 ° C, and the fourth sub temperature discolored at a predetermined fourth temperature, for example, 85 ° C. The fifth and second sub-temperature sensitive color changeable parts 335 discolored at a predetermined fifth temperature, for example, 90 ° C, and the sixth changed at a predetermined sixth temperature, for example, 95 ° C. Sub-temperature sensitive discoloration unit 336 is included. As shown in FIG. 5, the first, second, third, fourth, fifth, and sixth sub-temperature sensitive color change parts are sequentially formed from the upper side to the lower side of the heat sink 23. In this case, when the temperature of the introduced insulating oil gradually increases to 70 ° C. or more, the first, second, third, fourth, fifth, and sixth sub-temperature sensitive color change parts 331,332,333,334,335,336 are sequentially discolored, and the degree of overload applied to the transformer is sequentially changed. Make sure that you are systematically aware of any abnormalities.

FIG. 6 is a view for explaining that the temperature sensitive discoloration unit is formed at an end of the upper header of FIG. 1.

As shown, the temperature sensitive discoloration unit 430 may be formed at an end of the upper header 21. Since the insulating oil flows to the heat sink 23 after passing through the upper header 21, the upper header 21 has a faster temperature change than the heat sink 23. Therefore, when the temperature sensitive discoloration unit 430 is formed in the upper header 21, it is possible to quickly determine whether the transformer is overloaded.

The temperature sensitive discoloration unit 30, 130, 230, 330, 430 may be implemented by applying a temperature sensitive paint (ink) to the upper header 21 or the heat sink 23. However, the temperature sensitive discoloration unit 30, 130, 230, 330, 430 may be implemented by applying the temperature-sensitive paint to the sticker, and then attach the sticker.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

As described above, according to the radiator according to the present invention, by forming a temperature-sensitive discoloration in the upper header, the lower header, or the heat sink, when the overload is applied to the transformer or an abnormality occurs and the temperature of the insulating oil becomes above a predetermined temperature The discoloration part is discolored. Since the discoloration of the temperature-sensitive discoloration unit is confirmed from the outside, the administrator can check the degree of overload or abnormality of the transformer and take appropriate measures accordingly, thereby preventing a dangerous situation such as the explosion of the transformer.

Claims (8)

It is installed on the side of the transformer 10 in which the insulating oil and the transformer is built, the upper header 21 is connected to the upper coupler 11 of the upper side of the transformer 10, and the lower side of the side of the transformer 10 In the radiator comprising a lower header 22 connected to the lower coupler 12, and a plurality of heat dissipation plate 23 is installed in communication between the upper header 21 and the lower header 22, At least one of the upper header 21, the lower header 22 and the heat dissipation plate 23, a temperature-sensitive color change that is changed color when the temperature of the insulating oil flows to a predetermined temperature or more is formed Discoloration Radiator. The method of claim 1, And a protective layer formed on an upper surface of the temperature sensitive color fading portion to prevent the temperature sensitive color fading portion from being damaged by an external environment. The method according to claim 1 or 2, The temperature-sensitive discoloration unit 30, the heat-sensitive discoloration radiator, characterized in that formed on the entire surface of the heat sink (23). The method according to claim 1 or 2, The temperature-sensitive discoloration unit 130, the temperature-sensitive discoloration radiator, characterized in that formed on the upper half of the surface of the heat sink (23). The method according to claim 1 or 2, The temperature sensitive discoloration unit 230 is formed on the surface of the heat sink 23, and the first temperature sensitive discoloration unit 231 discolored at a predetermined first temperature, and the second temperature discolored at a second predetermined temperature. Temperature-sensitive discoloration radiator, characterized in that it comprises a sensitive discoloration unit (232). The method of claim 5, The second temperature-sensitive color fading unit 232 is a temperature-sensitive color fading radiator, characterized in that the character. The method according to claim 1 or 2, The temperature-sensitive color fading unit 330 is formed on the surface of the heat sink 23, the temperature-sensitive color fading radiator, characterized in that it comprises at least three or more sub-temperature-sensitive color fading discoloration at different temperatures. The method according to claim 1 or 2, The temperature-sensitive discoloration unit 430, the temperature-sensitive discoloration radiator, characterized in that formed on the end of the upper header (21).

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