KR100878258B1 - Power distributor which have improved ventilate construction - Google Patents

Abstract

The present invention relates to a switchgear for transforming the electricity of a special high voltage supplied from a power supply to an appropriate voltage for its use, and in a general switchgear in which various transformer facilities for transformers are accommodated inside an insulation enclosure, A plurality of air inlets are formed spaced apart, the top plate which closes the upper part of the insulating enclosure is formed to protrude convex upwards, the main element of the configuration is that the blowing fan is installed in the center of the top plate.

According to the present invention, the external cold air and the internal hot air can be smoothly sucked and discharged without stagnation in the insulation enclosure. Therefore, the cooling efficiency of the various transformer facilities accommodated in the insulation enclosure is improved, as a result there is an advantage that can further improve the performance and efficiency of the installation.

Switchgear, transformer, insulation enclosure, heat dissipation, ventilation structure

Description

Power distributor which has improved ventilate construction

1 is a side configuration diagram schematically showing a configuration of a conventional switchgear.

Figure 2 is a side view for showing the appearance configuration of the switchgear according to the first embodiment of the present invention.

Figure 3 is a side configuration diagram schematically showing the overall internal configuration of the switchgear according to the first embodiment of the present invention.

Figure 4 is a side configuration diagram schematically showing the overall internal configuration of the switchgear according to a second embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10.Insulation enclosure

12A, 12B ... Top

20 ... transformer equipment

31.Air intake

32.Blowing Fan

The present invention relates to a switchgear having a variety of transformer facilities for the transformer, in detail utilizing the convection phenomenon of the air, the outside cold air and the inside of the hot air is smoothly sucked and discharged without stagnation inside the enclosure The present invention relates to a water distribution panel having an improved ventilation structure, which improves the cooling efficiency of various transformer facilities accommodated in an insulation enclosure, thereby further improving the performance and efficiency of the facility, and thus extending the life of the facility.

A switchgear or a switchgear (hereinafter referred to as a "switchgear") is used as a device for transforming the extra-high voltage electricity supplied from the power supply into an appropriate voltage for its use.

As shown in FIG. 1, a switchgear generally used is insulated with a switchgear door for direct contact with the outside and an internal inspection or maintenance in consideration of safety of electric shock and fire in the process of use. The enclosure 100 is provided, and the various enclosures for transformer transformation 200 are accommodated in the insulation enclosure 100 to be protected and isolated from the outside.

In addition, the switchgear is provided with a ventilation facility 300 in order to prevent the performance degradation of the device by discharging the heat emitted from the various transformer facilities 200 accommodated in the insulating enclosure 100 to the outside. As shown in FIG. 1, the general ventilation system applied to the insulated enclosure is constructed such that cold air from the outside is drawn into the enclosure 100 by drilling a ventilation hole 310 at the lower end of the side wall of the door or the insulated enclosure. Alternatively, the blower fan 320 may be installed on the sidewall of the insulating enclosure to discharge heat emitted from the various transformer facilities 200 accommodated in the insulating enclosure 100 to the outside.

However, in the ventilation structure of the conventional switchgear as described above, the cold air introduced through the air vent 310 is externally provided through the blower fan 320 only through a partial region inside the insulation enclosure 100 along the flow shown by the arrow in the drawing. Exit to Therefore, since cold air drawn in from the outside is not evenly supplied into the insulating enclosure 100, effective cooling of various transformer facilities in the insulating enclosure 100 is not achieved. In the region, a stagnant region A is formed in which the heat released from the equipment does not escape to the outside and remains congested.

As a result, in the related art, since the heat generated from the transformer is not effectively discharged to the outside, the performance of the facility is lowered, so that the efficiency of the switchgear is reduced, and the life is shortened.

The present invention has been made in view of the above-described problems of the prior art, and by utilizing the convection of the air actively so that the outside cold air and the inside hot air is smoothly sucked and discharged without stagnation inside the enclosure. The purpose of this invention is to provide a switchgear having an improved ventilation structure that can improve the performance and efficiency of the equipment by improving the cooling efficiency of various transformer facilities accommodated in the insulation enclosure, thereby extending the life of the equipment. have.

In order to achieve the above object, the present invention, in the switchgear accommodated in the various transformers for the transformer in the insulation enclosure, a plurality of air inlet is formed spaced apart along the lower side of the insulation enclosure, the top plate for closing the insulation enclosure A convex protrusion is formed on the top of the top plate, and a blower fan is installed at the center of the top plate, and a cover is disposed on the top plate of the upper part of the blower fan so as to cover the top of the blower fan. .

Here, according to one aspect of the invention, the top plate is an arcuate top plate convexly curved upward, characterized in that the blowing fan is provided in the central curved portion of the arched top plate.

Further, according to another aspect of the invention, the top plate is a trapezoidal top plate having a pair of inclined surfaces facing each other narrower toward the upper side, the air blowing on a flat surface to which the both inclined front end of the trapezoidal top plate is connected Characterized in that the fan is installed.

Hereinafter, preferred embodiments of the present invention will be described in detail.

The present invention allows the outside cold air and the hot air inside the enclosure to be sucked and discharged smoothly without stagnation inside the enclosure, thus improving the cooling efficiency of the various transformer facilities accommodated in the insulation enclosure to improve the performance and efficiency of the installation. It is to help improve. To this end, the present invention, by forming an air inlet along the lower side of the insulating enclosure side wall, and convexly projecting the upper plate to close the upper portion of the housing and at the same time by installing a blower fan in the center of the upper plate, by utilizing the convection of the air actively The point of configuration is to maximize the circulation efficiency of air.

The configuration of the present invention will be described in more detail with reference to the accompanying drawings.

<Example 1>

FIG. 2 is a side view illustrating the external configuration of the switchboard according to the first embodiment of the present invention, and FIG. 3 is a side view schematically showing the overall internal configuration of the switchboard according to the first embodiment of the present invention.

2 to 3, the switchgear includes an insulation enclosure 10 provided with an enclosed space, and a transformer installation 20 accommodated inside the insulation enclosure 10.

The insulating enclosure 10 is made of an insulating material or wrapped by an insulating material in consideration of safety against electric shock and fire of the human body, and on one side thereof, an open and close distribution box door 15 for limiting direct contact with the outside and checking or maintaining the inside. Is fitted.

In addition, the transformer 20 serves to transform the extra high voltage electricity supplied from the power supply to an appropriate voltage according to its use. At this time, a grille-shaped base 22 communicating with an air intake hole to be described later is placed on the inner bottom surface of the insulating enclosure 10, and the transformer 20 is installed on the base.

The switchgear as described above is provided with a ventilation facility in order to prevent the performance degradation of the device by discharging the heat emitted from the transformer installation 20 accommodated in the insulation housing 10 to the outside.

The ventilation system applied to the first embodiment of the present invention is installed on the plurality of air inlets 31 formed along the lower side of the insulation enclosure 10 sidewalls and on the top plate 12A that closes the upper portion of the insulation enclosure 10. And a blowing fan 32.

Specifically, the air inlet 31 has an opening that is open toward the ground at an angle, preferably 25 ° to 45 °, with respect to the side wall of the insulating enclosure 10, as in the partial enlarged view of FIG. 2. The open pieces 31a are spaced apart over the upper and lower equal intervals to constitute one air inlet.

And the upper plate (12A) for closing the upper portion of the insulating enclosure (10) is composed of an arcuate curved convex upwards, the blowing fan 32 is installed in the central curved portion of the upper plate (12A) formed in this arcuate shape inside the enclosure Force hot air out.

Here, the cover 33 is spaced apart on the upper plate of the upper portion of the blowing fan 32 to cover the upper portion of the blowing fan. The cover 33 is intended to block or prevent rain or snow from flowing back into the insulating enclosure 10 through the blowing fan 32.

According to the first embodiment of the present invention, a plurality of air intakes 31 are provided along the lower side of the side wall of the insulation enclosure 10, and a blower fan is formed at the center of the upper plate 12A that closes the upper portion of the insulation enclosure 10. 32) is installed. Therefore, it is possible to take advantage of the convection of the air, that is, the phenomenon of moving the hot air upwards can smoothly discharge the hot air in the insulating enclosure (10).

Here, the air suction opening 31 is formed of an opening piece 31a having an opening opened toward the ground side at an angle with respect to the side wall of the insulating enclosure. As such, since the opening piece 31a has an opening toward the ground side, the air flowing through the air intake port 31 has an angle of incidence as close as possible to the moving direction of the air in the insulation enclosure 10. Accordingly, when the blower fan 32 is operated, external cold air may smoothly flow into the insulation enclosure 10, and the introduced cold air may be provided on the base 22 disposed on the bottom of the insulation enclosure 10 without energy loss. Can be moved more smoothly to the top.

As a result, the hot air heat-exchanged with the transformer 20 in the insulating enclosure 10 can be more easily escaped to the outside through the blower fan 32 to improve the circulation efficiency of the air.

Furthermore, according to the first embodiment of the present invention, the upper plate 12A for closing the upper portion of the insulating enclosure 10 is configured in an arcuate shape that is convexly curved upwards, and thus, a blowing fan in the central curved portion of the upper plate 12A that is formed in the arcuate shape. 32 is installed. Therefore, the hot air heat-exchanged with the transformer 20 in the insulation enclosure 10 is moved upwardly and is naturally collected toward the curved portion along the inner surface of the convexly curved upper plate 12A, and the collected hot air is blown fan 32 Is discharged to outside.

That is, as the upper plate 12A is formed in an arc shape, the heat exchanged hot air gathers in one place (the upper plate curved portion side), and thus, the stagnant region in which the hot air remains and is stagnant is not formed. Therefore, the heat dissipation efficiency can be further improved, and when the snow piles up on the top plate due to the heavy snow due to the arched configuration, the top plate sags without bearing the load of snow loaded on the top plate. The same deformation does not occur.

<Example 2>

Figure 4 is a side configuration diagram schematically showing the overall internal configuration of the switchgear according to a second embodiment of the present invention.

The switchgear according to the second embodiment of the present invention is identical to the configuration of the above-described first embodiment except for the difference in shape of the upper surface of the insulating enclosure 10. Therefore, the same reference numerals and names are used for the same components as those of the above-described first embodiment, and a detailed description thereof will be omitted.

Referring to FIG. 4, the switchgear includes an insulation enclosure 10 in which an enclosed space is provided, and a transformer installation 20 accommodated in the insulation enclosure 10, and various transformers accommodated in the insulation enclosure 10. Ventilation facilities are provided in order to prevent the performance degradation of the apparatus by discharging the heat emitted from the installation 20 to the outside.

The ventilation system applied to the second embodiment of the present invention, like the ventilation system of the first embodiment described above, the plurality of air inlets 31 formed along the lower side wall of the insulating enclosure 10 and the insulating enclosure 10 And a blowing fan 32 provided on the top plate 12B that closes the upper portion.

The air intake 31 is the same as the configuration of the air intake 31 of the first embodiment described above.

The upper plate 12B closing the upper portion of the insulating enclosure 10 is formed in a trapezoidal shape having a pair of inclined surfaces 120 facing each other, the width of which is narrowed upward, and thus the trapezoidal shape of the upper plate 12B is formed. The blowing fan 32 is installed at the center of the flat surface 122 to which the front end portions of both inclined surfaces 120 are connected to forcibly discharge the hot air inside the insulation enclosure 10 to the outside.

At this time, on the upper plate of the upper portion of the blowing fan 32, the cover 33 is spaced apart as in the first embodiment described above to cover the upper portion of the blowing fan.

According to the second embodiment of the present invention, like the first embodiment described above, a plurality of air inlets 31 are provided along the lower side of the side wall of the insulating enclosure 10, and the upper portion of the insulating enclosure 10 is closed. The blowing fan 32 is installed in the center of the upper plate 12B. Therefore, it is possible to take advantage of the convection of the air, that is, the phenomenon of moving the hot air upwards can smoothly discharge the hot air in the insulation enclosure.

Particularly, according to the second embodiment of the present invention, the upper plate 12B closing the upper portion of the insulating enclosure 10 is configured in a trapezoidal shape in which the width thereof becomes narrower upward, and thus the flat surface of the upper plate 12B made of the trapezoidal shape. A blowing fan 32 is installed in the center of the 122. Therefore, the hot air heat-exchanged with the transformer 20 in the insulation enclosure 10 is moved upward and is naturally collected along the inner surface of the inclined surface 120 of the upper plate 12B toward the flat surface 122. Air is completely discharged to the outside by the blowing fan (32).

That is, as the top plate 12B is narrowed upward, the heat exchanged hot air is collected at one place (top plate side), so that the stagnant region in which the hot air remains and is stagnant is not formed. Therefore, the heat dissipation efficiency can be further improved, and due to the configuration in which the width is narrowed, the stiffness of the upper plate is further increased, so that deformation such as the upper plate is not generated.

In the detailed description of the present invention, only specific embodiments thereof have been described. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. Should be.

As described above, according to the switchgear according to the present invention, a plurality of air inlets are provided along the lower side of the insulating enclosure side wall, and a blower fan is installed at the center of the curved surface which protrudes convexly upward and at the same time, protruding upwardly. . Therefore, by using the convection of the air, that is, the phenomenon that the hot air moves upward, the outside cold air and the inside hot air can be smoothly sucked and discharged without stagnation in the enclosure. As a result, the cooling efficiency of the various transformer facilities accommodated in the insulation enclosure can be improved to further improve the performance and efficiency of the facility, thereby extending the life of the facility.

Claims (5)

In the switchgear housing the various transformers for the transformer in the insulation enclosure, A plurality of air inlets installed under the insulation enclosure sidewalls; A top plate which closes the upper part of the insulating enclosure and has a blower fan installed in the center thereof; And Includes a cover that covers the upper portion of the blowing fan, The top plate is arched convexly upwards, Switchgear having an improved ventilation structure, characterized in that the blowing fan is installed in the central curved portion of the arched top plate. In the switchgear housing the various transformers for the transformer in the insulation enclosure, A plurality of air inlets installed under the insulation enclosure sidewalls; A top plate which closes the upper part of the insulating enclosure and has a blowing fan installed in the center thereof; And Includes a cover that covers the upper portion of the blowing fan, The upper plate forms a trapezoidal shape having a pair of inclined surfaces facing each other with a narrower width toward the upper plate, The switchgear having an improved ventilation structure, characterized in that the blowing fan is installed in the center of the flat surface is connected to the both ends of the top surface of the trapezoidal shape. The method according to claim 1 or 2, The air inlet is an improvement, characterized in that the opening piece having an opening that is open toward the ground at an angle of 25 ° to 45 ° with respect to the insulating enclosure side wall spaced apart over the upper and lower equal intervals to form a single air intake Switchgear with a ventilated structure. delete The method according to claim 1 or 2, A distribution board having an improved ventilation structure, characterized in that a base in the form of a grill communicating with the air inlet is placed on the inner bottom surface of the insulating enclosure, and the transformer is installed on the base.

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