KR20220137440A - Cooling system of outdoor enclosure - Google Patents

Abstract

A distribution panel cooling system is provided. According to an embodiment of the present invention, the distribution panel cooling system comprises: an impactor installed on at least one surface of a distribution panel; and a fan installed in the distribution panel to generate an inflow of external air through the impactor. The impactor comprises: a main body having a suction port installed on an upper side thereof and having a flow path unit for allowing the external air to flow into the inside of the distribution panel through the suction port; and a collection unit having an opening on an upper side thereof, wherein the collection unit is mounted on a rear side of the flow path unit in the main body. The opening is disposed in a straight line with the suction port to communicate with the suction port. The flow path unit may be disposed perpendicular to a direction of the suction port.

Description

Switchgear cooling system {Cooling system of outdoor enclosure}

The present invention relates to a switchgear cooling system.

In general, an outdoor box such as a switchboard is provided with a cooling system because it generates a lot of heat to the devices mounted therein. Such a cooling system uses a fan to control the flow so that the outside air is sucked in and discharged after cooling the heat generating part inside the switchboard. In the case of such a switchboard, it inevitably comes into contact with the outside air, and it is common to use a filter to satisfy the IP rating (waterproof and dustproof).

However, when a filter is used, as time passes, foreign substances accumulate on the filter, and as the differential pressure increases, an appropriate flow rate is not generated. Therefore, the filter must be replaced or cleaned, which incurs maintenance costs.

Furthermore, there is a problem in that the cost increases because the amount of foreign substances accumulated on the filter increases more rapidly depending on the standby state and the installation site state, thereby shortening the maintenance period.

The technical problem to be solved by the present invention is to provide a switchgear cooling system, which reduces maintenance cost or increases maintenance period by separating foreign substances from outside air using an impactor.

In order to solve the above technical problems, an embodiment of the present invention includes an impactor provided on at least one surface of a switchboard, and a fan provided on the switchboard to generate an inflow of outside air through the impactor, and the impactor includes a main body having a suction port provided on the upper side and a flow passage through which the outside air flows into the inside of the switchboard through the intake port, and a collecting portion having an opening provided on the upper side and mounted on the rear side of the flow passage in the main body, The opening may be disposed on a straight line to communicate with the suction port, and the flow path may be disposed perpendicular to a direction of the suction port.

In one embodiment of the present invention, the main body may be provided with an outlet at the lower side of the collecting part on the opposite side of the inlet, and the outlet may be provided in the same direction as the inlet.

In one embodiment of the present invention, the body may further include an airtight portion provided along the circumference of the mounting surface of the collecting portion.

In an embodiment of the present invention, the collecting unit may be detachably attached to the main body.

In one embodiment of the present invention, the flow path portion may be provided to be bent in an "L" shape.

In one embodiment of the present invention, a viscous material may be applied to the bent portion of the flow passage or the collecting portion.

In one embodiment of the present invention, the viscous material may include grease.

In addition, in order to solve the above technical problem, the switchboard cooling system of an embodiment of the present invention, an impactor provided on the upper surface of the switchboard; and a fan provided inside the switchboard to generate a suction force of outside air through the impactor. Here, the impactor, the suction port is provided on the side of the upper body, the body is provided with a mounting hole to form through the center; and a collecting part having an opening provided on a side surface of the upper part and mounted on the main body through a mounting hole of the main body, wherein the opening is disposed in a straight line with the suction port and communicates with the inlet, and the outside air is connected to the inner surface of the mounting hole and the main body A flow passage flowing into the inside of the switchboard may be provided between the outer surfaces of the circuit board, and the flow passage may be disposed perpendicular to the direction of the suction port.

In one embodiment of the present invention, the main body may be provided with an outlet at the lower side of the flow passage, and the outlet may be provided in the same direction as the mounting hole.

In an embodiment of the present invention, the main body may include a step portion provided along the circumference of the mounting hole, and the collecting portion may include a head portion provided at an upper side of the opening and supported by the step portion.

In one embodiment of the present invention, the suction port and the opening may be divided into a plurality by a side wall.

In one embodiment of the present invention, the main body may further include a filter provided in the outlet.

The switchgear cooling system of an embodiment of the present invention includes: a vacuum pump for generating a flow force of foreign substances collected from the collecting unit; And it may further include a collection unit for collecting the foreign material flowed by the vacuum pump. Here, the collecting unit may have an outlet on the opposite side of the opening, and the collecting unit may be connected to the collecting unit through a pipe connected to the outlet.

In one embodiment of the present invention, the body may be provided with a metal mesh in the suction port.

In one embodiment of the present invention, the main body may be provided with a louver (louver) on the outside of the suction port.

The invention as described above has an effect of improving economic feasibility because it is not necessary to provide a separate filter by providing an impactor for sucking outside air on one surface of the switchboard, thereby reducing maintenance costs.

In addition, the present invention has the effect of increasing the maintenance period of the filter by providing a filter at the outlet of the impactor, thereby reducing maintenance costs and improving convenience of use.

1 is a perspective view of a switchboard according to an embodiment of the present invention.
2 is a side view of the front side of a switchboard according to an embodiment of the present invention.
3 is a cross-sectional view of the impactor of the switchboard cooling system according to the first embodiment of the present invention.
4 is a perspective view of an impactor of the switchboard cooling system according to the first embodiment of the present invention.
5 is an exploded perspective view of the impactor of the switchboard cooling system according to the first embodiment of the present invention.
6 is an exemplary view for explaining the operation principle of the impactor of the switchboard cooling system according to the first embodiment of the present invention.
7 is a perspective view of an impactor of the switchboard cooling system according to the second embodiment of the present invention.
8 is a perspective view of the main body of the impactor of the switchboard cooling system according to the second embodiment of the present invention.
9 is a perspective view of a collecting part of an impactor of a switchboard cooling system according to a second embodiment of the present invention.
10 is a cross-sectional view of the impactor of the switchboard cooling system according to the second embodiment of the present invention.
11 is an exemplary view for explaining the operation principle of the impactor of the switchboard cooling system according to the second embodiment of the present invention.
12 is an exemplary view for explaining a schematic modification of the switchboard cooling system according to an embodiment of the present invention.
13 is an exemplary view for explaining a modified example of the switchboard cooling system according to the first embodiment of the present invention.
14 is an exemplary view for explaining a modification of the switchboard cooling system according to the second embodiment of the present invention.

In order to fully understand the configuration and effect of the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and may be embodied in various forms and various modifications may be made. However, the description of the present embodiment is provided so that the disclosure of the present invention is complete, and to fully inform those of ordinary skill in the art to which the present invention pertains the scope of the invention. In the accompanying drawings, components are enlarged in size than actual for convenience of description, and ratios of each component may be exaggerated or reduced.

Terms such as 'first' and 'second' may be used to describe various elements, but the elements should not be limited by the above terms. The above term may be used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a 'first component' may be referred to as a 'second component', and similarly, a 'second component' may also be referred to as a 'first component'. can Also, the singular expression includes the plural expression unless the context clearly dictates otherwise. Unless otherwise defined, terms used in the embodiments of the present invention may be interpreted as meanings commonly known to those of ordinary skill in the art.

Hereinafter, a switchboard cooling system of an embodiment of the present invention will be described with reference to the drawings.

1 is a perspective view of a switchboard according to an embodiment of the present invention, and FIG. 2 is a side view of the front surface of the switchboard according to an embodiment of the present invention.

As shown in the drawing, the switchboard cooling system according to an embodiment of the present invention may include an impactor 100 provided on one surface of the switchboard 10 . Such a switchboard cooling system may include a fan (not shown) provided inside the switchboard 10 to generate suction force of the outside air through the impactor 100 .

The impactor 100 is illustrated and described as being provided on the front surface of the switchboard 10 , but is not limited thereto, and may be provided on any one of the front surface, the rear surface, or the side surface. Preferably, the impactor 100 may be provided at the lower front of the switchboard 10 to facilitate heat dissipation by convection within the switchboard 10 . As shown in FIG. 2 , the impactor 100 may be provided inside the switchboard 10 .

Accordingly, in the exemplary embodiment of the present invention, there is no need to provide a separate filter in the switchboard 10, so that the flow rate does not decrease even if foreign substances are accumulated over a long period of time. Accordingly, since maintenance such as washing or replacement is hardly required in one embodiment of the present invention, maintenance costs are reduced, and thus economic efficiency can be improved.

Figure 3 is a cross-sectional view of the impactor of the switchboard cooling system of the first embodiment of the present invention, Figure 4 is a perspective view of the impactor of the switchboard cooling system of the first embodiment of the present invention, Figure 5 is the switchboard cooling of the first embodiment of the present invention An exploded perspective view of the impactor of the system.

As shown in FIG. 3 , the impactor 100 may include a body 110 and a collecting unit 120 .

The main body 110 may be provided with a suction port 112 on the upper side of the first surface. Here, the first surface may be a surface coupled to the front surface 11 of the switchboard 10 . The suction port 112 may be provided in the longitudinal direction of the main body 110 (from the upper left end to the lower right end in FIG. 4 ).

As shown in FIG. 5 , the suction port 112 may be provided to pass through the upper portion of the body 110 . That is, the suction port 112 may be provided to penetrate from the first surface to the second surface of the body 110 . Here, the second surface is a surface opposite to the first surface, and may be a surface on which the collecting unit 120 is mounted.

The body 110 may include a flow path 116 through which the outside air sucked into the switchboard 10 flows into the switchboard 10 through the suction port 112 . The flow path 116 may be disposed perpendicular to the direction of the suction port 112 . That is, the flow path 116 may be provided in the height direction (up and down direction in FIG. 3 ).

In addition, the flow path 116 may be provided to be bent in an "L" shape. That is, the flow passage 116 may include a bent portion 118 . The flow path part 116 at the rear end of the bent part 118 may be provided in parallel with the suction port 112 .

Here, the third surface consecutive to the second surface of the body 110 may form the upper wall of the bent portion 118 . Accordingly, the body 110 may be equipped with the collecting unit 120 in a space formed by the second surface and the third surface.

The body 110 may have an outlet 114 on the lower side of the collecting unit 120 on the opposite side of the inlet 112 . Here, the outlet 114 may be provided in the same direction as the inlet 112 . 3 and 5 , the outlet 114 may be provided parallel to the inlet 112 .

The collecting unit 120 may be mounted on the lower side of the flow path 116 in the main body 110 . That is, the collecting unit 120 may be mounted on the second surface side of the main body 110 .

The collecting unit 120 may be provided with an opening 122 at an upper side of the first surface. Here, the first surface may be a surface mounted on the body 110 . The opening 122 may be provided in the longitudinal direction (from the upper left end to the lower right end in FIG. 5 ) of the collecting unit 120 .

Here, the opening 122 may be disposed on a straight line with the suction port 112 of the body 110 . That is, the opening 122 may communicate with the suction port 112 . The collecting unit 120 may include a space 124 for storing foreign substances. The space 124 may be provided below the opening 122 . The collecting unit 120 may have a box shape having a space 124 as a whole, and an opening 122 may be provided in a portion of the upper side.

Here, the collecting unit 120 may be detachably attached to the main body 110 . For example, the collecting unit 120 may be provided with a clasp at a portion of or around the opening 122 , and the main body 110 may be provided with a groove portion into which the clasp is inserted at a position corresponding to the clasp.

However, the present invention is not limited thereto, and the collecting unit 120 may be provided integrally with the main body 110 . That is, the second surface of the main body 110 and the first surface of the collecting unit 120 are integrally formed, and the third surface of the main body 110 and the bottom surface of the space 124 of the collecting unit 120 are integrally formed. can be done In this case, the collecting unit 120 may be provided with a cover for removing foreign matter on the upper portion.

In addition, in the impactor 100 , a viscous material may be applied to the bent portion of the flow passage 116 of the main body 110 or the collecting portion 120 . For example, the viscous material may include grease. Accordingly, the impactor 100 may improve the collecting rate of foreign substances in the collecting unit 120 and the bending unit 118, which is the secondary collecting section.

In addition, the impactor 100 may further include an airtight portion (not shown) provided along the periphery of the second surface, which is the mounting surface of the main body 110 of the collecting unit 120 . As an example, the main body 110 may have a second surface larger than the first surface of the collecting unit 120 , and an airtight portion such as a packing line may be provided in a portion corresponding to the circumference of the first surface of the collecting unit 120 . have. Thereby, the impactor 100 can ensure airtight maintenance when assembling the main body 110 and the collecting unit 120 .

In addition, the impactor 100 may further include a filter in which the main body 110 is provided at the outlet 114 . Here, when the product embedded in the switchboard 10 is a high-precision product using a semiconductor element, there is a possibility that the insulation may be broken by the foreign material of the nanoparticles. To this end, the body 110 may include a filter for removing nanoparticles.

In this case, since foreign substances having a relatively large size are removed from the collecting part 120 and the bending part 118 , the filter provided in the outlet 114 can remove only nanoparticles smaller than this. Therefore, the impactor 100 can increase the maintenance period of the filter compared to the related art while having the filter.

Accordingly, in one embodiment of the present invention, since the filter removes only the tertiary nanoparticle foreign substances, the flow rate does not decrease even after long-term use and the maintenance period can be increased. Accordingly, one embodiment of the present invention increases the maintenance period of the filter, thereby reducing maintenance costs and improving ease of use.

In addition, the impactor 100 may be provided with a metal mesh in the suction port 112 to ensure the main body 110 has a high IP rating. In addition, the impactor 100 may be provided with a louver on the outside of the suction port 112 in order to prevent the intrusion of water into the main body 110 from the outside.

6 is an exemplary view for explaining the operation principle of the impactor of the switchboard cooling system according to the first embodiment of the present invention.

As shown in FIG. 6 , by driving a fan (not shown) provided in the switchboard 10 , the outside air (A) passes through the inlet 112 and the flow path 116 of the impactor 100 to the switchboard 10 . ) can be inhaled.

At this time, a foreign material having a large size may move straight ahead by inertia at the suction port 112 to be seated in the collecting unit 120 . That is, particles (foreign substances) having a greater inertia than air may be collected in the space 124 after passing through the opening 122 of the collecting unit 120 in the linear flow direction at the inlet 112 .

Second, foreign substances having a relatively small size may move along the flow path 116 inertially. That is, particles having a similar or small inertia to air may move through the flow passage 116 along the outside air A.

Here, among the foreign substances having relatively small particles compared to the foreign substances collected by the collecting unit 120, particles smaller than the inertia of air do not proceed to the outlet 114 along the outdoor air A, and the impact caused by the bending unit 118 ( Impaction) can be captured secondarily.

In addition, the impactor 100 may control the size of the particles to be collected by adjusting the flow rate according to the area of the flow passage 116 . For example, the impactor 100 may be designed by a Stokes number. Here, the Stokes number represents the ratio of the particle response time to the system response time.

The size of the particles smaller than the inertia of the air above may be less than 10 μm, and the particles of foreign substances collected in the collecting unit 120 may be 10 μm or more. This example can be adjusted in consideration of the installation environment of the switchboard, etc., and the adjustment at this time can be sufficiently adjusted by adjusting the flow rate of the air flow generated by the fan.

And as another feature of the opening 122 , the particle size of the foreign material collected in the collecting unit 120 may be adjusted by adjusting the size of the opening 122 . However, when the size of the opening 122 is too large, the foreign substances collected in the collecting unit 120 due to the recirculation phenomenon may be introduced into the outlet 114 side again, so that the opening 122 has an appropriate size.

7 is a perspective view of an impactor of the switchboard cooling system according to the second embodiment of the present invention.

As shown in FIG. 7 , the switchboard cooling system according to the second embodiment of the present invention may include an impactor 200 having a circular shape. Such a switchboard cooling system may include a fan (not shown) which is provided inside the switchboard 10 and generates suction force of outside air through the impactor 200 .

Here, the impactor 200 may be provided on the upper surface 12 of the switchboard 10 . The impactor 200 may include a body 210 and a collecting unit 220 .

Since the main body 210 is provided with the impactor 200 on the upper surface 12 of the switchboard 10 , a suction port 212 may be provided on the upper side thereof. Here, the main body 210 may be installed such that the suction port 212 protrudes from the upper surface 12 of the switchboard 10 to the outside. In addition, the inlet 212 may be divided into a plurality by the side wall 213 . In addition, the main body 210 may be provided with an outlet 214 for discharging the sucked outside air into the switchboard 10 in the lower portion.

The collecting unit 220 may be mounted in the center of the main body 210 . That is, the collecting unit 220 may be mounted in a central space formed by the outer wall 215 of the main body 210 .

8 is a perspective view of the main body of the impactor of the switchboard cooling system according to the second embodiment of the present invention.

As shown in FIG. 8 , the main body 210 may be provided with a mounting hole 211 to form a through hole in the center. That is, the mounting hole 211 may be formed to penetrate from the upper side of the main body 210 to the lower side made of the outer wall 215 .

The body 210 may include a step portion 211a provided along the circumference of the mounting hole 211 from the upper surface. The step portion 211a may have a shape corresponding to the head portion 221 of the collecting portion 220 to be described later. That is, the step portion 211a has a function of supporting the head portion 221 of the collecting portion 220 . As a result, the impactor 200 can be easily detachably attached to the main body 210 and the collecting unit 220 .

The main body 210 may be provided with a larger diameter than that of the upper portion provided with the step portion 211a and the suction port 212 as compared to the lower portion formed of the outer wall 215 . Accordingly, the main body 210 may be installed such that the step portion 211a and the suction port 212 are exposed to the outside of the switchboard 10 , and the outer wall 215 is inserted into the switchboard 10 .

The main body 210 may be provided with an outlet 214 at the lower side. The outlet 214 may be provided in the same direction as the mounting hole 211 . That is, the outlet 214 may be one side of the mounting hole 211 .

9 is a perspective view of a collecting part of an impactor of a switchboard cooling system according to a second embodiment of the present invention.

As shown in FIG. 9 , the collecting unit 220 may be provided with an opening 222 on the side of the upper side. The collecting unit 220 may be mounted on the main body 210 through the mounting hole 211 of the main body 210 .

The opening 222 may be disposed on a straight line with the suction port 212 of the body 210 . That is, the opening 222 may communicate with the suction port 212 . In addition, the opening 222 may be divided into a plurality by the side wall 223 .

The collecting unit 220 may include a head unit 221 provided above the opening 222 . The head part 221 may be supported by the step part 211a of the main body 210 . Here, the head part 221 may have a larger diameter than that of the collecting part 220 corresponding to the opening 222 and the space 224 .

The collecting unit 220 may include a space 224 for storing foreign substances. The space 224 may be provided below the opening 222 . The collecting unit 220 may have a cylindrical shape having a space 224 as a whole, and an opening 222 may be provided on the upper side.

10 is a cross-sectional view of the impactor of the switchboard cooling system according to the second embodiment of the present invention.

As shown in FIG. 10 , in a state in which the collecting unit 220 is inserted into the body 210 , the flow path 216 is provided between the inner surface of the mounting hole 211 and the outer surface of the main body 210 . can Here, the flow path 216 may be disposed perpendicular to the direction of the suction port 212 of the main body 210 . That is, the flow path 216 may be provided in the height direction (up and down direction in FIG. 10 ). At this time, the main body 210 may be provided with an outlet 214 at the lower side of the flow passage 216 .

In addition, in the impactor 200 , a viscous material such as grease may be applied to the collecting unit 220 to improve the collecting rate of foreign substances similar to the impactor 100 according to the first embodiment. In addition, the impactor 200 may be provided with an airtight portion such as a packing line along the circumference of the step portion 211a of the main body 210 .

In addition, the impactor 200 may further include a filter provided at the outlet 214 of the body 210 . In addition, the impactor 200 may be provided with a metal mesh in the suction port 212 to secure a high IP rating. In addition, the impactor 200 may be provided with a louver (louver) on the outside of the suction port 212 of the main body 210 to prevent the intrusion of water from the outside.

11 is an exemplary view for explaining the operation principle of the impactor of the switchboard cooling system according to the second embodiment of the present invention.

As shown in FIG. 11 , by driving a fan (not shown) provided inside the switchboard 10 , the outside air (A) passes through the inlet 212 and the flow path 216 of the impactor 200 to the switchboard 10 . ) can be inhaled.

In this case, the large-sized foreign material may move straight ahead by inertia at the suction port 212 and be seated in the collecting unit 220 through the opening 222 . That is, particles (foreign substances) having a greater inertia than air may be collected in the space 224 after passing through the opening 222 of the collecting unit 220 in the linear flow direction at the inlet 212 .

12 is an exemplary view for explaining a modified example of the impactor of the switchboard cooling system according to an embodiment of the present invention.

12 , the switchboard cooling system may further include a vacuum pump 140 and a collection unit 150 . Here, the switchboard cooling system may include a plurality of impactors.

The vacuum pump 140 may generate a flow force of foreign substances collected from the plurality of collecting units 120 ′ and 220 ′. Here, the vacuum pump 140 may be connected to the plurality of collecting units 120 ′ and 220 ′ through pipes 128 and 228 .

The collection unit 150 may collect foreign substances flowing by the vacuum pump 140 . The collection unit 150 may be connected to the vacuum pump 140 through a pipe.

With this configuration, the foreign substances collected by the plurality of collecting units 120 ′ and 220 ′ may be discharged to the collecting unit 150 by the vacuum pump 140 .

Accordingly, since it is not necessary to form a large space for storing the foreign substances, the overall size of the plurality of collecting units 120 ′ and 220 ′ can be reduced. In addition, the impactor can reduce costs.

13 is an exemplary view for explaining a modified example of the switchboard cooling system according to the first embodiment of the present invention.

As shown in FIG. 13 , the impactor 100 ′ may have an outlet 126 on the opposite side of the opening 122 in which the collecting portion 120 ′ is opened. For example, the outlet 126 may be provided at the lower side of the space 124 . The outlet 126 may be formed through the outer wall of the collecting unit 120 ′ to communicate with the pipe 128 .

The collecting unit 120 ′ may be connected to the collecting unit 150 through a pipe 128 connected to the outlet 126 . In this case, the foreign substances collected in the collecting unit 120 ′ may flow to the collecting unit 150 along the pipe 128 by the flow force generated by the vacuum pump 140 .

14 is an exemplary view for explaining a modification of the switchboard cooling system according to the second embodiment of the present invention.

As shown in FIG. 14 , the impactor 200 ′ may have an outlet 226 on the opposite side of the opening 222 of the collecting portion 220 ′. For example, the outlet 226 may be provided at the lower side of the space 224 . The outlet 226 may be formed through the outer wall of the collecting unit 220 ′ to communicate with the pipe 228 .

The collecting unit 220 ′ may be connected to the collecting unit 150 through a pipe 228 connected to the outlet 226 . In this case, the foreign substances collected by the collecting unit 220 ′ may flow to the collecting unit 150 along the pipe 228 by the flow force generated by the vacuum pump 140 .

Although the embodiments according to the present invention have been described above, these are merely exemplary, and those of ordinary skill in the art will understand that various modifications and equivalent ranges of embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined by the following claims.

100, 200: Impactor 110, 210: Main body
112, 212: inlet 114, 214: outlet
116, 216: flow path 118: bent part
120, 220: collecting part 122, 222: opening
124, 224: space 126, 226: exit
128, 228: piping 211: mounting hole
211a: step 213, 223: side wall
215: outer wall 221: head portion
140: vacuum pump 150: collection unit
10: switchboard 11: front
12: upper surface

Claims (15)

an impactor provided on at least one surface of the switchboard; and
and a fan provided in the switchboard to generate the inflow of external air through the impactor,
The impactor is
a main body having a suction port provided at an upper side and a flow passage through which the outside air flows into the switchboard through the suction port; and
An opening is provided at the upper side and includes a collecting unit mounted on the rear side of the flow path in the main body,
The opening is disposed on a straight line with the suction port to communicate,
The flow path part is a switchgear cooling system that is disposed perpendicular to the direction of the suction port. According to claim 1,
The main body is provided with an outlet at the lower side of the collecting part on the opposite side of the inlet,
The outlet is provided in the same direction as the inlet cooling system. According to claim 1,
The main body further includes an airtight portion provided along the circumference of the mounting surface of the collecting unit. According to claim 1,
The collecting unit is a switchgear cooling system that is detachably attached to the main body. According to claim 1,
The flow path portion is provided to be bent in an "L" shape. 6. The method of claim 5
A switchgear cooling system in which a viscous material is applied to the bent portion of the flow passage or the collection portion. 7. The method of claim 6,
The viscous material is a switchgear cooling system including grease. an impactor provided on the upper surface of the switchboard; and
and a fan provided inside the switchboard to generate a suction force of external air through the impactor,
The impactor is
a main body provided with a suction port on a side surface of the upper portion and a mounting hole through the center; and
An opening is provided on the side of the upper part and includes a collecting part mounted on the main body through the mounting hole of the main body,
The opening is disposed on a straight line with the suction port to communicate,
A flow passage through which the outside air flows into the inside of the switchboard is provided between the inner surface of the mounting hole and the outer surface of the main body,
The flow path part is a switchgear cooling system that is disposed perpendicular to the direction of the suction port. 9. The method of claim 8,
The main body is provided with an outlet at the lower side of the flow passage,
The outlet is provided in the same direction as the mounting hole in the switchboard cooling system. 9. The method of claim 8,
The body includes a step portion provided along the circumference of the mounting hole,
The collecting unit is provided above the opening and includes a head unit supported by the step portion. 9. The method of claim 8,
The inlet and the opening are divided into a plurality by a sidewall cooling system. 10. The method of claim 2 or 9,
The main body is a switchgear cooling system further comprising a filter provided at the outlet. 9. The method of claim 1 or 8,
a vacuum pump for generating a flow force of foreign substances collected from the collecting unit; and
Further comprising a collection unit for collecting the foreign material flowed by the vacuum pump,
The collecting unit has an outlet on the opposite side of the opening,
The collecting unit is connected to the collecting unit through a pipe connected to the outlet cooling system. 9. The method of claim 1 or 8,
The main body is a switchgear cooling system provided with a metal mesh at the inlet. 9. The method of claim 1 or 8,
The main body is a switchgear cooling system provided with a louver (louver) on the outside of the inlet.

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