KR101033096B1 - Ventilator for including safety unit and controlling angle and improving cooling efficiency enclosed switchgear including thereof - Google Patents

Abstract

PURPOSE: A ventilator for including a safety unit and controlling a angle and improving cooling efficiency enclosed switchgear including thereof are provided to prevent the inflow of foreign material into the ventilator while suppressing the loss of power. CONSTITUTION: A ventilator is comprised of a blade unit, a cover unit, a bracket for adjusting an angle, and a guard circuit. A switch panel comprises two ventilation units(100a, 100b). The first ventilation unit(100a) takes in air outside of the switch panel into inside. The bracket adjusts an angle so that air flow in the switch panel generates maximum arc.

Description

Ventilator for safety and angle control, and cooling efficiency improvement switchboard including the same

The present invention relates to a ventilator and a switchboard including the same, and more particularly to a ventilator having a built-in safety device, including an angle adjustment bracket and a cooling efficiency improvement switchboard including the same.

In general, the switchboard is always supplied with a domestic rated voltage such as 22.9KV, 6.6KV, 3.3KV, 440V, 380 / 220V such as transformers, circuit breakers and capacitors. In addition, the temperature rises by 10 ~ 30 ° C compared to the ambient temperature, such as heat generated by no load loss or load loss, heat generated by SOHO when the breaker is operated, heat generated by charge accumulation such as a capacitor, and heat generated by the intrinsic resistance when the electric device is operated. As a result, the efficiency of the internal power equipment of the switchboard is reduced, and the lifespan is shortened.

In addition, when operating a switchboard installed indoors, the placenta is operated in a state in which the switchboard door is opened because the conventional cooling method does not effectively cool the internal temperature of the switchboard. At this time, power outages caused by external mice, cats, and pests are frequently generated.

In addition, in the case of a switchboard installed outdoors, condensation may occur due to cold air at night, which may cause power waste and accidents such as excessive humidity and electrical safety accidents caused by water droplets.

And in the case of the cooling fan installed in the switchboard installed in the outdoor, there is a safety cover, there is a problem that a safety accident occurs due to the child to put or poke foreign matters to the inlet of the fan. The form of a conventional safety cover and a ventilator is shown in FIGS. 1A-1D. 1A and 1B are a perspective view and a cross-sectional view of a first embodiment of the prior art, and FIGS. 1C and 1D are diagrams illustrating a cooling fan and a safety cover thereof of a switchboard according to a second embodiment of the prior art.

As shown in FIGS. 1A and 1B, and FIGS. 1C and 1D, the conventional ventilators 500 and 500 ′ have a plurality of wind holes 523 and 523 ′ formed in the safety covers 520 and 520 ′. This type of safety cover has a problem that can be easily passed through the foreign matter, such as the arrow of 570, 570 'through the wind holes (523, 532'). In FIGS. 1B and 1D, arrows 560 and 560 ′ indicate air flow directions by the fans 500 and 500 ′.

On the other hand, Figure 2 is a view showing the air flow of the switchboard including a ventilator according to the prior art. Looking at the air flow inside the switchboard 200 is installed with a conventional ventilator 500, referring to Figure 2, as shown in (a), (b), (c), through the air vent 80, The flow is formed, the vortex by the vortex of the air is formed in the switchboard 200. This raises the temperature of the upper part (1) opposite the fan, the center (2) opposite the fan, the lower center (3) of the transformer or power device, the lower center (4) of the fan, and the upper part (5) of the fan.

That is, even if the fan is installed, there is a problem that the temperature rise problem inside the switchboard is not solved.

The present invention has been proposed to solve the above problems, and an object thereof is to provide a safety device, such as a fan having a double cover and a safety circuit diagram and a switchboard including the same.

It is another object of the present invention to provide a fan and a switchboard including the same, in which the angle can be adjusted to improve cooling efficiency.

Still another object of the present invention is to install two ventilators including a safety device and an angle adjustable bracket at one lower side and the other upper side of the switchboard, and the direction of the wind is changed to the upper and lower sides, and the air volume is increased and cooled. It is to provide a switchboard in which efficiency can be improved.

The ventilator installed in the switchboard according to the present invention for achieving the above object, the intake of the outside air or the exhaust air is exhausted, the cover is provided outside the switchboard to protect the blades, a plurality of dense wind hole cover A cover part provided with a plurality; An angle adjustment bracket installed on the switchboard door and provided between the blade and the cover part and formed to be inclined at a specific angle toward the top or the bottom thereof so as to tilt the blade at a specific angle; And a safety circuit connected to the switchboard and the blade and including a limit switch to cut off power for rotation of the blade when at least one switchboard door is opened.

The fan according to the present invention comprises first and second fans, wherein the first fan is installed at one lower side of the switchboard, the first blade faces downward, and the first blade faces the inside of the switchboard. Is installed to rotate to perform an intake function, the second ventilator is installed upside down so that the second blade is provided in the switchboard in the upper side of the other side of the switchboard, the second blade is directed downward, the second blade is the It is characterized in that it is installed to rotate toward the outside of the switchboard to perform the exhaust function.

In addition, the switchboard having improved cooling efficiency according to the present invention including the above-described fan is installed on one side lower portion of the switchboard, the first blade is directed to the lower side, the first blade is installed to rotate toward the inside of the switchboard. A first fan configured to perform an intake function; A second blade is installed upside down so that the second blade is provided inside the switchboard at the other side of the switchboard, the second blade is directed downward, the second blade is installed to rotate toward the outside of the switchboard to perform the exhaust function Ventilator; And a safety circuit connected to the first and second fans, respectively, and including a limit switch to cut off power of the fan when at least one door of the switchboard is opened.

The present invention is provided with a plurality of covers for protecting the blades, such as a double cover, the wind hole formed in the cover is formed as densely as possible. For this reason, there exists an effect that loss of air volume is suppressed. And it is impossible to add the foreign matter, the safety can be improved.

And when any door of the switchboard in which the fan is installed is open, a safety circuit to cut off the power of the switchboard and the fan may be installed to double the safety.

In addition, the exhaust fan provided at an angle inclined at one lower portion and the other upper portion of the switchboard increases the circulation speed of the outside air during intake and exhaust of the switchboard, thereby improving cooling efficiency.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

1A and 1B are a perspective view and a cross-sectional view showing a fan for cooling the temperature of a switchboard according to the first aspect of the prior art, and a safety cover thereof.
1C and 1D are a perspective view and a cross-sectional view showing a fan for cooling the temperature of a switchboard according to a second aspect of the prior art, and a safety cover thereof.
Figure 2 is a view showing the air flow of the switchboard including a ventilator according to the prior art.
3A to 3C are perspective views and cross-sectional views showing a ventilator and a safety cover thereof according to the first aspect of the present invention, wherein FIGS. 3B and 3C are cross-sectional views illustrating a ventilator of another embodiment.
4A and 4B are a perspective view and a cross-sectional view showing a fan and a safety cover thereof according to a second aspect of the present invention.
5 is a view showing a safety circuit of the exhaust fan and the switchboard including the same according to the present invention.
Figure 6 is a view showing the air flow of the switchboard including a ventilator according to the present invention.

Hereinafter, a safety device and an angle control fan according to a preferred embodiment of the present invention and a cooling efficiency improvement switchboard including the same will be described in detail with reference to the accompanying drawings.

First, a ventilator for improving safety, built-in angle control and cooling efficiency according to the present invention will be described. 3A to 3C are perspective views and cross-sectional views showing a ventilator and a safety cover thereof according to the first aspect of the present invention, wherein FIGS. 3B and 3C are cross-sectional views illustrating a ventilator of another embodiment. 4A and 4B are a perspective view and a cross-sectional view showing a fan and a safety cover thereof according to a second aspect of the present invention. 5 is a view showing a safety circuit of the exhaust fan and the switchboard including the same according to the present invention.

3A and 3B, the fan 100 according to the present invention includes a blade portion 10, a cover portion 20, an angle adjustment bracket 30, and a safety circuit 40.

The blade unit 10 is provided inside the switchboard 200. The blade unit 10 includes a blade 11 and a motor 13. The blade unit 10 intakes or exhausts air by the blade 11 that is rotated by the driving of the motor 13. That is, in the case of the blade unit 10 installed toward the inside from the outside of the switchboard door 250 as shown in FIGS. 3B and 3C, air outside the switchboard 200 is indicated by arrows 60 and 60 ". As shown in FIG. 4B, the blade portion 10 ′ installed in the switchboard door 250 to face the outside thereof exhausts air inside the switchboard 200 as indicated by an arrow of 60 ′. This will be described in more detail with reference to FIG. 6.

The cover unit 20 is provided outside the switchboard 200. The cover part 20 is installed outside the switchboard door 250 and protects the blade 11. The cover part 20 is formed with a plurality of dense wind holes 23. The wind hole 23 is formed more densely than the conventional wind hole 523 as shown in FIG. 1A, and the shape of the wind hole 23 is in addition to the shape shown in FIG. 3A. 23 ') may be a shape, and is not limited to this form.

The cover part 20 is composed of a double cover of a plurality of covers 21, for example, first and second covers 21a and 21b. At this time, the wind holes 23 of the first and second covers 21a and 21b are installed so as to be alternately arranged so that no foreign matter can pass therethrough. That is, as shown by the arrow 70 of FIG. 3B, the arrow 70 "of FIG. 3C, and the arrow 70 'of FIG. 4B, even if foreign matter passes through the first covers 21a and 21a', the wind hole 23, The foreign matter cannot pass through the second covers 21b and 21b 'installed so that 23') are alternately disposed.

The angle adjustment bracket 30 is installed in the switchboard door 250 and is provided between the blade portion 10 and the cover portion 20. Angle adjustment bracket 30 is formed to be inclined at a specific angle toward the top or bottom. This causes the blade portion 10 to be inclined at a certain angle towards the top or bottom. As shown in FIGS. 3B and 4B, the inclination angle of the angle adjusting bracket 30 may be about 20 degrees, and as shown in FIG. 3C, the inclination angle of the fan 100 ″ may be installed even if the shape of the fan 100 ″ is deformed. The inclination of the angle adjustment bracket may be about 40 degrees, but is not limited to this form.

The safety circuit 40 is connected to the switchboard 200 and the motor 13. The safety circuit 40 includes a limit switch 41. The limit switch 41 cuts off the power of the motor 13 when any door of the switchboard 200 in which the fan is installed is opened. As a result, power loss does not occur, and a safety accident caused by the blade 11 of the fan 100 to be generated may be prevented in advance.

Since two fans 100 according to the present embodiment are installed in the switchboard 200, as shown in FIGS. 5 and 6, the limit switches 41a and 41b are provided at the front door and the rear door, respectively. The first and second fans 100a and 100b are connected to each other.

Next, the switchboard 200 in which the fan 100 according to the present embodiment is installed will be described. Figure 6 is a view showing the air flow of the switchboard including a ventilator according to the present invention.

6, the switchboard 200 according to the present embodiment includes two fans 100a and 100b. The first ventilator 100a is installed below one side of the switchboard 200. The blade part of the first ventilator 100a faces the lower portion by the angle adjusting bracket facing downward. The blade of the blade unit is installed to rotate toward the inside of the switchboard 200. For this reason, the first ventilator 100a performs a function of taking in the air outside the switchboard 200 to the inside.

The second ventilator 100b is installed at the upper side of the other side of the switchboard 200. The second ventilator 100b is installed in such a manner that the angle adjusting bracket is inverted by 180 degrees in the form of the first ventilator 100a so that the blade part is provided in the switchboard 200. The blade part of the second fan 100b faces downward. The blade of the blade unit is installed to rotate toward the outside of the switchboard 200. For this reason, the second ventilator 100b performs a function of exhausting the air inside the switchboard 200 to the outside.

The angle adjustment brackets of the first and second fans 100a and 100b are angled to allow the flow of air to form the maximum arc in the switchboard 200. For example, the first and second ventilators 100a and 100b may be formed to be inclined about 20 degrees toward the bottom, but are not limited thereto.

Looking at the air flow inside the switchboard 200 according to the present embodiment, in the case of (a), the flow of air through the vent 80 is deformed in the shape of an arch rather than a straight line as in the prior art (see FIG. 2) The temperature rise portion of the upper portion (1) opposite the second ventilator 100b is significantly reduced, and the temperature rise portion of the conventional portion ⑤ is almost extinguished. That is, the air volume and the wind speed of the air through the vent 80 are increased. In the case of (b), the left side of the power device is wound to cool the device, and a portion of the temperature rise in the center (②) opposite to the second fan 100b disappears due to the increased wind speed.

In the case of (B-1), the lower part of the installed transformer or power device and the lower part of the second fan 100b are cooled and then exhausted to increase the temperature of the lower center (③) of the power device and the lower center (④) of the second fan. The site disappears. In the case of (c), the flow of air through the vent 80 is wound around the right side of the power device installed by the increased wind speed and the increased air volume, thereby increasing the cooling efficiency of the device. That is, the air volume and the wind speed are increased by the intake and exhaust of the two fans 100a and 100b, and the cooling efficiency of the switchboard 200 is increased.

As a result, the temperature rise portion of the upper portion (①) opposite the second ventilator 100b and the center (②) portion opposite the second ventilator 100b is extinguished, and the temperature rise portion of the remaining portions ③, ④, and ⑤ is Completely extinguished Therefore, since the temperature inside the switchboard 200 is significantly reduced and the cooling efficiency is improved, there is an effect of extending the efficiency and life of the power device.

On the other hand, the built-in safety device, the angle adjustment and the cooling fan for improving the cooling efficiency and the switchboard including the same according to the present embodiment is not limited to the above-described form, various modifications can be carried out within the scope not departing from the technical spirit of the present invention. Can be. This will be readily apparent to those skilled in the art.

100, 500; Ventilator
200; switchboard
250; Switchboard door
10; Blade part
11; blade
13; motor
20; Cover
21; cover
23; Air hole
30; Angle adjustment bracket
40; Safety circuit
41; Limit switch
60; Air flow direction
70; Foreign material input direction
80; ventilation opening

Claims (3)

In the fan installed in the switchboard to intake outside air or exhaust the inside air,
A cover part provided outside the switchboard to protect the blades and having a plurality of covers formed with a plurality of dense wind holes, and installed such that the wind holes of the plurality of covers are alternately disposed;
An angle adjusting bracket installed on the switchboard door and provided between the blade and the cover part, the intake air being lowered and the exhaust being inclined at a specific angle toward the upper part to allow the blade to be inclined at a specific angle; And
And a safety circuit connected to the switchboard and the blade and including a limit switch to cut off power for rotation of the blade when the at least one switchboard door is opened.
The fan is composed of first and second fans,
The first ventilator is installed below one side of the switchboard, the first blade is directed downward, the first blade is installed to rotate toward the inside of the switchboard to perform an intake function,
The second ventilator is installed upside down such that the second blade is provided inside the switchboard at the upper side of the switchboard, the second blade faces downward, and the second blade is installed to rotate outward of the switchboard. Ventilator, characterized in that to carry out. delete In the switchboard containing the fan of claim 1,
A first fan installed at one lower side of the switchboard, the first blade facing downward, and the first blade rotated toward the inside of the switchboard to perform an intake function;
A second blade is installed upside down so that the second blade is provided inside the switchboard at the other side of the switchboard, the second blade is directed downward, the second blade is installed to rotate toward the outside of the switchboard to perform the exhaust function Ventilator; And
And a safety circuit connected to each of the first and second fans and including a limit switch to cut off power of the fan when at least one door of the switch panel is opened.

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