KR101655446B1

KR101655446B1 - Inverter enclosure assembly for outdoors

Info

Publication number: KR101655446B1
Application number: KR1020160028492A
Authority: KR
Inventors: 남정덕; 김재훈
Original assignee: 주식회사 진희계전; 주식회사 에이치케이에너지
Priority date: 2016-03-09
Filing date: 2016-03-09
Publication date: 2016-09-08

Abstract

An outdoor inverter enclosure device according to the present invention includes: a floor block which is seated on a ground and has a plurality of drain holes formed on a bottom surface thereof; An AC distribution box and metering base seated on one side of the bottom block; A connection box seated on the other upper surface of the bottom block; A mounting frame positioned at a central portion of the bottom block so as to extend in a horizontal direction and spaced apart from the top surface of the bottom block by a predetermined distance; An inverter module coupled to the mounting frame; A wire duct fixed between the bottom block and the mounting frame so as to extend in the horizontal direction and having a built-in electric wire connecting the AC distribution box, the metering base, the connection box and the inverter module; And an upper plate that is seated to cover the AC distribution box, the metering base, the connection box, and the inverter module.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inverter enclosure for outdoors,

The present invention relates to an enclosure for installing an inverter for converting an alternating current into a direct current, and more particularly to an enclosure for safely protecting an inverter and an alternating current distribution unit, a metering base, and a connection box connected thereto, The present invention relates to an enclosure device constituted by a housing.

Generally, the enclosures for power electronic appliances are divided into outdoor type and indoor type depending on their installation places. In the inside of these power electronic enclosures, a large number of components are installed, and since a lot of heat is generated during operation of these components, Cooling facilities for the In addition, in the case of an outdoor type power electronics enclosure, foreign matter such as moisture, salt, and dust can be easily introduced into the inside of the equipment, so that it is required to have a structure capable of effectively blocking such foreign matter.

Prior arts can be found in Korean Patent Laid-open Publication No. 10-2009-0010637 entitled " Heat Dissipation Structure for Telecommunication Equipment Cabinets ", and Korean Patent Publication No. 10-2011-0110070 "

In such a conventional inverter enclosure, a plurality of inverter modules are installed therein, and a large amount of heat is generated in the electric unit including the electronic substrate in each inverter module. Therefore, in order to dissipate heat, And a fan is installed outside the enclosure. When the heat is generated in a plurality of electronic boards installed in the inverter module, the fan is driven to suck the external cool air into the inside of the inverter module, and the foreign substances such as moisture, salt and dust are filtered through the filter attached to the suction port So that the inside of the enclosure is cooled by the cold air from which the contamination is removed.

At this time, the conventional inverter enclosure has a cabinet shape in which the inside and the outside are isolated from each other so that people or animals can not directly touch the electric unit. Thus, the cabinet- There is a drawback that the electric units may be overheated because they are not discharged.

Of course, if a plurality of heat sinks and cooling fans are installed in the enclosure, the electric unit in the enclosure can be sufficiently cooled. However, when a plurality of heat sinks and cooling fans are provided, It is necessary to continuously supply the current to drive the battery.

That is, in order to cool the electric unit in a natural convection mode, the electric units must be exposed to the outside. When the electric unit is exposed to the outside, an accident that a person or an animal is electrocuted occurs, There is a problem that it can be wetted with water.

In addition, the conventional inverter enclosure is a device that has the greatest purpose of simply protecting the inverter module physically and does not have a separate waterproof function. Therefore, there is a disadvantage that the inverter module may be submerged if a large amount of rainfall occurs in a region where a conventional inverter enclosure is installed, or when a river floods.

KR 10-2009-0010637 A KR 10-2011-0110070 A

Disclosure of Invention Technical Problem [8] The present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to provide an inverter which can be cooled by a natural convection system, And to provide an outdoor inverter enclosure device capable of preventing various electrical units from being wet with water.

According to another aspect of the present invention, there is provided an outdoor inverter enclosure comprising: a floor block which is seated on a ground and has a plurality of drain holes along a bottom surface; An AC distribution box and metering base seated on one side of the bottom block; A connection box seated on the other upper surface of the bottom block; A mounting frame positioned at a central portion of the bottom block so as to extend in a horizontal direction and spaced apart from the top surface of the bottom block by a predetermined distance; An inverter module coupled to the mounting frame; A wire duct fixed between the bottom block and the mounting frame so as to extend in the horizontal direction and having a built-in electric wire connecting the AC distribution box, the metering base, the connection box and the inverter module; A top plate seated to cover the AC distribution box, the metering base, the connection box, and the inverter module; A roof inclined so as to cover the upper portion of the upper plate larger than the width of the upper plate and lower in height from the center to both ends; And a water inflow blocking means for selectively blocking the bottom block and the upper panel.

The water inflow blocking means includes a water level sensor for sensing a water level around the floor block, and a water level sensor for surrounding the space side between the floor block and the upper plate when the water level detected by the water level sensor exceeds a reference value, And a lifting / lowering shutter.

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An approach detection sensor for detecting an approach of a person or an animal to the vicinity of the electric unit installed in the floor block and generating an access signal; and a speaker and a beacon for generating an alarm when an access signal is generated from the approach detection sensor.

Further comprising a camera for photographing the periphery of the electric unit installed in the floor block and transmitting a video signal to the central control room,

And the speaker and the beacon are configured to be operated by a control signal transmitted from the central control room.

And a tear gas distributor for spraying tear gas around the electric unit installed in the floor block when an approach signal is generated from the proximity sensor.

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The water inflow blocking means further comprises a rainfall amount sensor for detecting a precipitation amount and a wind speed sensor for detecting wind speed,

When both the amount of precipitation and the wind speed exceed the reference value, the elevating shutter is operated to surround the space side between the floor block and the upper plate.

Since the various electric units are exposed to the outside, the outdoor unit inverter enclosure according to the present invention can cool each electric unit by a natural convection system and generate an alarm by sound or light when a person or an animal approaches. And it is possible to prevent the phenomenon that various electric units are flooded during rain.

1 is a perspective view of an outdoor inverter enclosure according to the present invention.
2 is a right side view of an outdoor inverter enclosure according to the present invention.
3 is a left side view of an outdoor inverter enclosure according to the present invention.
4 is a cross-sectional view of an outdoor inverter enclosure according to the present invention.

Hereinafter, embodiments of an outdoor inverter enclosure according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of an outdoor inverter enclosure according to the present invention, FIG. 2 is a right side view of an outdoor inverter enclosure according to the present invention, and FIG. 3 is a left side view of an outdoor inverter enclosure according to the present invention.

The outdoor inverter enclosure according to the present invention includes a plurality of inverter modules 400 for converting AC to DC, an AC distribution box 200 for dividing AC supplied from the outside into a plurality of inverter modules 400, And a connection box 500 for sending electricity converted into a direct current to the outside by each inverter module 400. The inverter module 400 and the AC distribution box 200 and the weighing base 300 and the connection unit 500 (hereinafter, referred to as "electric unit") are exposed to the outside, and it is possible to prevent the water from being wet during rain.

In other words, the outdoor inverter enclosure according to the present invention includes a floor block 100 having a plurality of drain holes 110 formed on the floor and having a floor, and an AC distribution box 200 And a weighing base 300 and a connection box 500 seated on the upper surface of the other side of the bottom block 100. The connection block 500 is positioned at the center of the bottom block 100 to extend horizontally, The inverter module 400 coupled to the mounting frame 410 and the mounting block 410 to extend in the horizontal direction so as to be spaced apart from the upper surface of the mounting block 410. [ A cable duct 420 which is fixed between the AC distribution box 200 and the weighing base 300 and has a wire connecting the connection box 500 and the inverter module 400, The metering base 300, the junction box 500, and the inverter module 400, It is configured to include a top plate 600 which is mounted so as to cover the upper side.

The wire duct 420 is made of a structure in which the interior of the wire duct 420 is sealed so that the built-in electric wire is not contaminated or damaged. Meanwhile, the AC distribution box 200, the weighing base 300, the inverter module 400 and the connection box 500 are equally applied to the conventional inverter enclosure, and the AC distribution box 200 and the weighing base 300 And the inverter module 400 and the connection box 500 will not be described in detail.

As described above, the outdoor inverter enclosure according to the present invention includes a separate housing enclosing various electric units such as an AC distribution box 200, a metering base 300, an inverter module 400 and a connection box 500 There is an advantage that heat generated in the electric unit can be released by natural convection without a separate heat dissipation device. Of course, the AC distribution box 200, the weighing base 300, the inverter module 400, and the connection box 500 must be formed with heat dissipation holes (not shown) for discharging the heat generated therein, A separate ventilation fan 510 may be separately provided for heat dissipation. The ventilation fan 510 is installed only in the AC distribution box 200 and the weighing base 300 and the inverter module 400. In this case, .

In addition, since the bottom block 100 is manufactured to have a height above a certain level, the electric unit installed on the floor block 100 can be directly immersed And the water on the floor block 100 drains quickly through the drain hole 110 even if water splashes onto the floor block 100, thereby minimizing the wetting of the electric unit. The shape and the number of the drain holes 110 may be variously selected according to various conditions such as the size and characteristics of the bottom block 100.

On the other hand, the rainwater may be dropped obliquely to one side rather than falling vertically during rain, so that the electric units may be wetted with rain even when the upper panel 600 is mounted to cover the respective electric units. Therefore, the outdoor inverter enclosure according to the present invention may further include a separate roof 610 covering the upper panel 600. [ The roof 610 is configured such that both sides of the roof 610 extend in the width direction of the upper plate 600. Therefore, there is an advantage that the rainwater is less likely to be wetted by the respective electric units even if the rainwater falls obliquely. Also, the roof 610 is inclined in a direction in which the height decreases toward both ends in the width direction. The rainwater that has fallen on the roof 610 can be discharged sideways on the inclined surface of the roof 610.

In the outdoor inverter enclosure according to the present invention, since the electric units are not covered by a separate housing, there is a possibility that the electric units are damaged by an outside person or an animal, and further, an electric shock accident may occur. The outdoor inverter enclosure according to the present invention is also characterized in that it is configured to generate an alarm when a person or an animal approaches the vicinity of the electric unit installed in the floor block 100 in order to solve such a problem.

That is, the outdoor inverter enclosure according to the present invention includes an approach detection sensor 710 for generating an approach signal when a person or an animal approaches the electric unit, A speaker 720 for giving a warning to the user, and a beacon 740 for giving a warning by light. Generally, when a person or an animal has an instinct for departing from the area when a warning sound or a light is output, if the speaker 720 and the warning light 740 are configured to output a warning sound and a light signal, So that it is possible to prevent various accidents caused by the touch.

Also, the speaker 720 and the warning light 740 may be configured to be operated automatically by an access signal output from the proximity sensor 710, or may be configured to control operation directly in a central control room for managing an outdoor inverter enclosure . That is, the outdoor inverter enclosure according to the present invention further includes a camera 730 for photographing the periphery of the electric unit installed in the floor block 100 and transmitting a video signal to the central control room, The beacon light 740 may be configured to be operated by a control signal transmitted from the central control room.

When the operation of the speaker 720 and the warning light 740 is controlled by the central control room, the manager can output various alarms while viewing the area where the outdoor inverter enclosure is installed as an image, Can be prevented.

On the other hand, a general person or an animal may be out of the area when a warning sound or a light is output as mentioned above. In some cases, there may be a person or an animal touching the electric unit ignoring a warning sound or a light. Accordingly, when an access signal is generated from the proximity sensor 710, the outdoor inverter enclosure device according to the present invention can be used as an outdoor unit, And a tear gas sprayer 750 for spraying tear gas with the sprayer 750.

The tear gas sprayed by the tear gas sprayer 750 not only makes it impossible to secure a normal view by stimulating the eyes of people and animals but also functions to cause pain in the skin of people and animals, It is possible to more reliably prevent various accidents caused by touching the electric unit.

4 is a cross-sectional view of an outdoor inverter enclosure according to the present invention.

When the water level of the water flowing on the ground exceeds the height of the bottom block 100, a large amount of rain or flooding occurs in the area where the outdoor inverter enclosure device according to the present invention is installed, A phenomenon occurs in which water is submerged.

As shown in FIG. 4, the outdoor inverter enclosure according to the present invention includes a water level sensor 820 for detecting a water level around the floor block 100 as a water inflow blocking means, And an elevating shutter 830 surrounding the space between the bottom block 100 and the top plate 600 when the level sensed by the level detecting sensor 820 exceeds a reference value.

When the water level sensed by the water level sensor 820 exceeds a reference value, the water level sensor 820 is rotated by a separate driving motor (not shown) And is lowered until the end is brought into close contact with the bottom block 100. At this time, a sealing packing 832 is provided at the end of the lifting shutter 830 to improve the adhesion with the bottom block 100. When the lifting shutter 830 is lowered until the bottom block 100 is pressed The water is prevented from flowing into the space where the electric units are mounted.

On the other hand, when the rain is blown strongly in the rainy weather and the rainwater is scattered sideways, there is a fear that the electric units are wetted with water and damaged even if the floors 100 are not flooded with water. Therefore, the outdoor inverter enclosure according to the present invention can be set to surround the space between the floor block 100 and the upper panel 600 even when the rainwater is scattered laterally.

At this time, in order for the rainwater to flow sideways, the wind must blow very hardly at a speed higher than the reference value with a certain level of rain or more. The raising and lowering shutter 830 has a condition that the amount of precipitation exceeds the reference value and the condition that the wind speed exceeds the reference value It is preferable to be set to be operated only when all of them are satisfied.

Therefore, the outdoor inverter enclosure according to the present invention further comprises a rainfall amount sensor 810 for detecting the amount of rainfall as a water inflow blocking means and an air velocity sensor for detecting the wind speed, and the lift- It is preferable to surround the space side between the floor block 100 and the upper plate 600 when the wind speed exceeds the reference value.

Since the rainfall amount sensor 810 and the wind speed detection sensor of the water inflow blocking means are commercialized in various forms in the field of meteorology, detailed description of the rainfall amount sensor 810 and the wind speed detection sensor will be omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. It will also be appreciated that many modifications and variations will be apparent to those skilled in the art without departing from the scope of the invention.

100: bottom block 110: drain
200: AC distribution box 300: Weighing base
400: inverter module 410: mounting frame
420: Wire duct 500: Connection box
510: ventilation fan 600: top plate
610: roof 710: proximity sensor
720: speaker 730: camera
740: Beacon light 750: Tear gas sprayer
810: Precipitation sensor 820: Water level sensor
830: lifting shutter 832: sealing packing

Claims

A floor block (100) which is seated on the ground and has a plurality of drain holes (110) formed along the floor surface;
An AC distribution box 200 and a weighing base 300 that are seated on one upper surface of the bottom block 100;
A connection box 500 mounted on the upper surface of the other side of the floor block 100;
A mounting frame 410 positioned at a central portion of the bottom block 100 so as to extend in a horizontal direction and spaced apart from a top surface of the bottom block 100 by a predetermined distance;
An inverter module 400 coupled to the mounting frame 410;
The weighing base 300, the connecting box 500, and the inverter module 400 are connected to each other by being fixed between the bottom block 100 and the mounting frame 410 so as to extend in the horizontal direction, A wire duct 420 in which electric wires are embedded;
An upper plate 600 seated to cover the AC distribution box 200, the metering base 300, the connection box 500, and the inverter module 400;
A sloping roof 610 covering the upper portion of the upper plate 600 so as to be wider than the upper plate 600 and having a lower height from the center to both ends;
And a water inflow blocking means for selectively blocking the bottom block 100 and the upper plate 600,
The water inflow blocking means includes a water level sensor 820 for detecting a water level around the floor block 100 and a water level sensor 820 for detecting a water level of the floor block 100. When the water level sensed by the water level sensor 820 exceeds a reference value, And a lifting shutter (830) surrounding the space between the top plate (600) and a sealed packing (832) formed along the lower end of the lifting shutter (830).

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The method according to claim 1,
An approach detection sensor 710 for sensing an approach of a person or an animal to the vicinity of the electric unit installed in the floor block 100 and generating an access signal; an alarm generating unit 710 for generating an alarm when an approach signal is generated from the approach detection sensor 710; Further comprising a speaker (720) and a beacon (740).

The method of claim 3,
Further comprising a camera (730) for photographing the vicinity of the electric unit installed in the floor block (100) and transmitting a video signal to the central control room,
Wherein the speaker (720) and the beacon (740) are operated by a control signal transmitted from the central control room.

The method of claim 3,
Further comprising a tear gas distributor (750) for spraying tear gas around the electric unit installed in the floor block (100) when an approach signal is generated from the proximity sensor (710) .

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The method according to claim 1,
The water inflow blocking means further includes a precipitation amount sensor 810 for detecting the amount of precipitation and a wind speed sensor for detecting the wind speed,
Wherein the elevating shutter (830) is operated so as to surround the space side between the floor block (100) and the upper plate (600) when both the rainfall amount and the wind speed exceed the reference value.