KR102172708B1 - Switchgear or Distribution Board with IP55 Dustproof and Waterproof ratings - Google Patents

Abstract

The present invention relates to a switchboard (distribution board) with an IP55 dustproof and waterproof rating with an improved structure so that proper dustproof and waterproof performance can be maintained even for long-term use without frequent replacement of sealing members and dust filters. To solve the problem of the present invention, according to the present invention, the switchboard with an IP55 dustproof and waterproof rating comprises: an upper plate of a predetermined size installed to form an upper surface of a rectangular box-shaped enclosure with one side open; a door of a predetermined size installed to be opened and closed on an open side of the enclosure; an upper guide horizontally installed along a top end of the upper plate in a direction in which the door is installed; a lower guide of a predetermined length horizontally installed along an upper end of the door so that a predetermined width overlaps the upper guide when the door is closed; and a plurality of ventilation units installed through the door.

Description

Switchgear or Distribution Board with IP55 Dustproof and Waterproof ratings}

The present invention relates to a switchboard (distribution board) having an IP55 dustproof and waterproof rating, and more particularly, to prevent foreign substances such as dust (hereinafter referred to as'dust') and rainwater from entering the interior of the enclosure. It relates to a switchboard (distribution board) having an IP55 dustproof and waterproof rating that is configured to have waterproof performance.

In general, a switchboard (or distribution box) is a device that forms a connection point between a common electric distribution network and a house electrical circuit, and such a switchboard (or distribution box) may be installed alone outdoors as needed. In this case, the distribution equipment installed inside Appropriate dustproof and waterproof performance is required to protect.

To this end, conventionally, a sealing member is installed on the door side of the switchboard (or distribution box) to block the inflow of rainwater, and a dust filter is installed at the air inlet and outlet to prevent dust from easily entering the interior of the switchboard (or distribution box). have.

In the case of the conventional dustproof and waterproof structure as described above, when the sealing member is deteriorated, the ability to block the inflow of rainwater is greatly degraded, and in the case of the dust filter, there is a trouble of having to periodically replace.

Therefore, the development of a switchboard (or distribution box) that can effectively block the inflow of dust and rainwater over a long period of time is being made, and as a conventional technology for this purpose, an intelligent distribution box having a dustproof and waterproof effect of Patent Publication No. 1629844 ( Hereinafter, referred to as'patent document') is disclosed.

The distribution box (distribution board) disclosed in the patent document is formed of a rectangular panel, and includes a front panel provided with a vent hole configured as a semicircular cap facing the front and a discharge hole configured as a row at the lower end; A first coupling portion formed in a rectangular panel and provided with a vent hole formed of a semicircular cap facing the front side and a first coupling hole formed at the corner portion; It is composed of a box shape with one side open, a vent hole configured with a semicircular cap facing the front, and a second coupling part having a spacer formed at the corner, and the vent hole of the first coupling part is the front panel and the second coupling part. The distribution box panel unit is formed to deviate from the ventilation hole, and formed by forming spacers at the inner corners of the second coupling portion respectively, and joined using the first coupling hole and the bolt of the first coupling portion, and the joined second coupling portion is welded to the front panel. It consists of being formed.

However, the distribution box disclosed in the above patent document has a problem in that the ventilation holes are arranged slightly misaligned, and since the flow direction of air is the same, dust contained in the air cannot be properly filtered and flows into the interior.

Therefore, it is required to develop a switchboard (or distribution board) with an improved structure to satisfy the IP55 dustproof and waterproof rating even for long-term use.

KR 10-1629844 B1 (2016.06.07.) KR 10-1254091 B1 (2013. 04. 08.) KR 10-2014-0086096 A (2014. 07. 08.) KR 10-1263621 B1 (2013. 05. 06.)

The present invention was devised to solve the problems of the conventional switchboard (or distribution board) having the above-described conventional dustproof and waterproof performance, and the problem to be solved by the present invention is long-term use without frequent replacement of sealing members and dust filters. It is to provide a switchboard (distribution board) with an improved IP55 dustproof and waterproof rating to maintain appropriate dustproof and waterproof performance.

A switchboard having an IP55 dustproof and waterproof rating according to the present invention for solving the above problems includes: an upper plate having a predetermined size installed to form an upper surface of a rectangular box-shaped enclosure with one side open; A door of a predetermined size installed to be openable and closed on an open side of the enclosure; An upper guide horizontally installed along the tip of the upper plate in the direction in which the door is installed; A lower guide having a predetermined length horizontally installed along an upper end of the door so that a predetermined width overlaps the upper guide when the door is closed; And it characterized in that it comprises a plurality of ventilation units installed through the door.

And the present invention is another feature that the upper guide is formed in a "C"-shaped cross-sectional shape.

In addition, the present invention is a fixed portion of a predetermined length to which the lower guide is closely installed and fixed along the upper surface of the door; A vertical portion having a predetermined length vertically formed along one end of the fixing portion; And an insertion portion having a predetermined length protruding horizontally so as to overlap the upper guide by a predetermined width at the front end of the vertical portion.

In addition to this, the present invention is another feature in that the insertion portion is formed to be inclined at a predetermined angle instead of being formed horizontally.

In addition, the present invention is further characterized in that a sealing member having a "C" cross-sectional shape in contact with the upper guide is installed at the front end of the insertion part.

According to the present invention, the upper and lower guides are respectively installed on the upper plate and the door, and when the door of the enclosure is closed through this, the lower guide is naturally in close contact with the upper guide in a state of overlapping a predetermined width between the upper plate and the door. It is blocked so that rainwater does not flow through the gap, so proper waterproofing performance can be guaranteed.

In addition, the flow of air is diverted and flowed in a direction perpendicular to the external air flowing into the ventilation unit through the first and second flow path partition plates of the ventilation unit, and in this process, dust contained in the air is naturally inside the ventilation unit. As it stays, clean air is relatively introduced into the interior of the enclosure, and as a result, appropriate dustproof performance can be ensured.

1 is a perspective view showing an example of a switchboard (distribution board) having an IP55 dustproof and waterproof rating according to the present invention.
Figure 2 is a perspective view showing an example of the upper guide according to the present invention.
3 is a cross-sectional view showing an example of an upper guide according to the present invention.
Figure 4 is a perspective view showing an example of a lower guide according to the present invention.
5 is a cross-sectional view showing an example of a lower guide according to the present invention.
6 is a view showing another embodiment of the lower guide according to the present invention.
7 is a view showing another embodiment of the lower guide according to the present invention.
8 is a view showing an example in which a sealing member is installed on the lower guide according to the present invention.
9 is a view showing an example in which the upper guide and the lower guide are installed to overlap according to the present invention.
10 is a perspective view showing an example of a ventilation unit according to the present invention.
11 is a cross-sectional view showing an example of a ventilation unit according to the present invention.
12 is a cross-sectional view showing another embodiment of the ventilation unit according to the present invention.
13 is a view showing an example in which a pair of ventilation units according to the present invention are installed to be symmetrical to each other.

Hereinafter, a preferred embodiment of the present invention will be described in detail according to the accompanying drawings.

The present invention is to provide a switchboard (distribution board) having an improved IP55 dustproof and waterproof rating so that proper dustproof and waterproof performance can be maintained even for long-term use without frequent replacement of sealing members and dust filters. 1 and 2, includes an upper plate 10, a door 20, an upper guide 30, a lower guide 40, and a ventilation unit 50.

Hereinafter, for convenience of explanation, one side of the enclosure 1 in which the door 20 is installed is referred to as'front', and the opposite direction is referred to as'rear'.

The upper plate 10 is configured to form the upper surface of the rectangular box-shaped enclosure 1, as shown in FIG. 1, and the door 20 is installed to be openable and closed on the open side (front) of the enclosure 1 It is a configuration.

Here, the upper plate 10 is formed short in the front side by a width corresponding to the thickness of the door 20 in consideration of the upper guide 30 to be described later, and the door 20 is formed in consideration of the lower guide 40 to be described later. The upper length is formed as short as the height of the lower guide 40.

In addition, a square-shaped installation hole (not shown) is installed in the door 20 so that the ventilation unit 50 to be described later is installed, and the ventilation unit 50 is assembled through a fastening member such as a screw. .

And sealing members (not shown) are installed along the left and right sides and the bottom side of the door 20, and when the door 20 is closed through this, the left and right sides and the bottom side of the door 20 are the frame of the enclosure (1). To keep the air tight as a whole.

In the above, it has been shown and described that only the installation hole is formed only on the door 20, but unlike this, the side of the enclosure (1) allows the outside air to flow into the enclosure (1) more easily and quickly and at the same time to allow the air from inside to be discharged to the outside. In addition, a plurality of installation holes may be formed and then a ventilation unit 50 to be described later may be installed.

The upper guide 30 is installed horizontally along the front end of the front upper plate 10 on which the door 20 is installed so that the lower guide 40 to be described later overlaps a predetermined width, through which the left and right sides of the door 20 It is a configuration that prevents rainwater from flowing into the interior of the enclosure 1 through the upper portion of the door 20, where rainwater is relatively frequent compared to the side and bottom sides.

This upper guide 30 is a fixed portion of a predetermined length that is fixedly installed through a fastening member (not shown) such as screws while being installed in close contact along the tip of the upper plate 10 as shown in FIGS. 2 and 3 (31), an upper support portion 32 formed to protrude a predetermined width toward the front along the upper portion of the fixing portion 31, and a lower support portion formed to protrude a predetermined width toward the front along the lower portion of the fixing portion 31 ( 33), and through this, the upper guide 30 has a “C” cross-sectional shape as a whole.

At this time, the upper support part 32 is formed to protrude more forward than the lower support part 33, thereby structurally preventing rainwater from easily entering the portion in close contact with the fixing part 31 and the lower support part 33 It will be.

In addition, the upper support part 32 is formed to have a rectangular cross-sectional shape in which a hollow of a predetermined size is formed inside so as not to be easily deformed or damaged by an external force while being able to achieve weight reduction.

In addition, the upper support part 32 includes a contact sensor S or a detection sensor that detects whether the front end of the insertion part 43 of the lower support part 33 and the fixing part 31 are in contact with each other, as shown in FIG. 3. It is installed, and through this, when the front end of the insertion part 43 is not in contact with the fixing part 31 while the door 20 is closed, the operator is guided through an alarm or warning light.

The lower guide 40 is installed along the length at the top of the door 20, and when the door 20 is closed, the upper guide 30 overlaps with a predetermined width so that rainwater, etc., is a gap between the upper plate 10 and the door 20. It is a configuration that blocks the inflow to the inside through.

As shown in FIGS. 4 and 5, the lower guide 40 has a fixed portion 41 of a predetermined length that is closely installed along the upper end of the door 20, and one end is connected to one end of the fixing portion 41. The vertical portion 42 and one end formed to have a predetermined length vertically are connected to the other end (tip) of the vertical portion 42 and formed to have a predetermined width horizontally, so that the other end is the upper guide 30 It includes an insertion portion 43 of a predetermined length that is inserted toward the insertion space 34 formed between the upper and lower support portions 32 and 33 of the upper and lower support portions 32 and 33 and overlapped with a predetermined width.

At this time, instead of protruding horizontally to have a predetermined width, the insertion part 43 faces the fixing part 31 of the upper guide 30 compared to one end connected to the vertical part 42 as shown in FIG. 6. The other end is formed to be inclined at a predetermined angle (A) so that the other end is located at a relatively high position, and through this, even if rainwater falls between the upper and lower guides 30 and 40, it naturally flows outward along the inclined surface of the insertion part 43. To prevent rainwater from entering the inside easily.

Alternatively, as shown in FIG. 7, a rubber sealing member G having a "c" cross-sectional shape is inserted along the front end of the insertion part 43, through which the door 20 is closed, the insertion part The sealing member (G) of (43) may be configured to maintain airtightness while in close contact with the fixing portion (31) of the upper guide (30).

In addition, in the above, the fixing portion 41, the vertical portion 42, and the insertion portion 43 of the lower guide 40 are shown and described as being integrally formed, but unlike this, as shown in FIG. 8, the fixing portion ( 41) may be changed to be formed separately from the vertical portion 42 and the insertion portion 43.

In this case, a support 41A protruding perpendicular to the fixing part 41 to have a predetermined height is further formed, and the support 41A and the vertical part 42 have a predetermined diameter through hole (no reference numeral). After being formed, the fastening pin 44 of a predetermined length is inserted so as to horizontally penetrate the through hole, so that the vertical part 42 is assembled to the support 41A.

In addition, an elastic spring 45 is installed on the fastening pin 44 between the support 41A and the vertical portion 42, and the vertical portion 42 and the insertion portion 43 are elastically supported through the elastic spring 45. It will be.

When the door 20 is closed through the configuration as described above, the tip of the insertion portion 43 is inserted into the insertion space 34 of the upper guide 30 to reach the fixing portion 31, and in this state, the elastic spring 45 ), the front end of the insertion part 43 is in elastic contact with the fixing part 31 through the elastic force acting on the door 20 so that the airtightness of the door 20 is more reliably maintained.

When the door 20 is closed as shown in FIG. 9 through the lower guide 40 as described above, the insertion part 43 of the lower guide 40 is inserted toward the insertion space 34 of the upper guide 30, Since the insertion part 43 is positioned relatively higher than the fixed part 41 and the upper side is covered by the upper support part 32 of the upper guide 30, rainwater is prevented from the insertion part ( 43) is not easily introduced

Through this, in addition to the sealing member installed on the left and right sides and the bottom of the door 20, waterproof performance against low pressure water sprayed from all directions toward the door 20 through the upper and lower guides 30 and 40 (IP waterproofing Level 5 criteria) can be satisfied.

The ventilation unit 50 is installed in an installation hole (not shown) formed in the door 20 to allow external air to be introduced into the interior and internal air to be discharged to the outside.

The ventilation unit 50 has a predetermined size installed in an installation hole formed on the plate of the door 20 or the enclosure 1 while a plurality of ventilation portions 51A are formed as shown in FIGS. 10 and 11. A fixed plate 51, a first flow path partition plate 52 installed on one side of the fixing plate 51 so as to be spaced apart from the ventilation part 51A, and a predetermined distance from the first flow path partition plate 52 It includes a second flow path partition plate 53 installed to be spaced apart, and a plurality of spacers 54 installed between the first and second flow path partition plates 52 and 53.

In addition, a plurality of inlet holes 52A are formed in the lower portion of the first flow path partition plate 52, and the air between the first and second flow path partition plates 52 and 53 is formed in the upper portion of the second flow path partition plate 53. A discharge hole 53A of a predetermined size to be discharged is formed.

In addition, a plurality of protrusions B are provided on one side of the first and second flow path partition plates 52 and 53 facing each other so that the free ends are inclined downward at a predetermined angle while being deviated from each other, and such a plurality of protrusions The flow of air passing through the first and second flow path partition plates 52 and 53 through (B) is obstructed, resulting in a slow flow rate.

In the ventilation unit 50 configured as described above, the direction of the flow path is changed from the horizontal direction to the vertical direction through the first and second flow path partition plates 52 and 53 through the air flowing into the inside through the ventilation part 51A. At the same time, in the process of passing air between the first and second flow path partition plates 52, 53, the flow rate is greatly slowed, so that the dust contained in the air is effectively settled, and as a result, clean air from which the dust is removed It is introduced into the interior of the enclosure (1).

Since the ventilation unit 50 has a flow path so that air can easily flow in only one direction, some of the ventilation units 50 among the plurality of ventilation units 50 are in order to allow the air inside the enclosure 1 to be discharged to the outside. ) Is installed oppositely so that the fixing plate 51 is located inside the enclosure 1, as shown in FIG. 1, through which the air inside the enclosure 1 is passed through a plurality of vents 51A. 50) After flowing into the inside, it is discharged to the outside along the inlet hole 52A and the discharge hole 53A.

As a result, even if some dust is introduced, it is possible to expect a dustproof performance (standard of IP dustproof class 5) that does not affect the device.

Meanwhile, in the above, it has been illustrated and described that a plurality of protrusions (B) are formed so as to deviate from each other along one side of the first and second flow path partition plates 52 and 53 facing each other. Likewise, instead of the protrusion (B), the first flow path partition plate 52 is installed to be inclined at a predetermined angle (A') or the upper portion is formed to be tapered at a predetermined angle, through which the flow path toward the inlet hole (52A) Since the passage width of the discharge hole 53A is relatively narrow, it may be configured so that air cannot be easily discharged toward the discharge hole 53A.

In addition, the first and second flow path partition plates 52 and 53 may further have a dust absorbing member that is easy to absorb dust, such as a non-woven fabric, on one side facing each other. Through this, dust in the air is It may be configured to be more easily and quickly adsorbed while passing through the passage partition plate (52, 53).

In addition, although it has been shown and described above that the ventilation unit 50 is installed in a different direction according to the direction of inflow and discharge of air, a pair of ventilation is different as shown in FIG. The units 50 may be installed to be symmetrical to each other.

As described above, in the present invention, the upper and lower guides are respectively installed on the upper plate and the door, and through this, the lower guide is naturally in close contact with the upper guide in a state overlapping the upper guide by a predetermined width while the door of the enclosure is closed. It is blocked so that rainwater does not flow into the gap.

In addition, the flow of air is switched in a direction perpendicular to the air flow through the first and second flow path partition plates of the ventilation unit, and in this process, dust contained in the air easily stays inside the ventilation unit, and clean air is relatively inside the enclosure. Is introduced.

Therefore, the present invention can satisfy the dustproof performance of a degree that does not affect the device even if some dust is introduced (dustproof grade 5) and the waterproof performance against low pressure water sprayed from all directions (waterproof grade 5), and thus It is possible to expect a waterproof and dustproof grade of IP55 or higher.

In the above, for the convenience of explanation, the drawings showing the preferred embodiments and the configurations shown in the drawings have been described with reference numerals and names, but this is an embodiment according to the present invention and is It is limited and the scope of the rights should not be interpreted, and the simple substitution with a configuration that has the same effect as a change to a variety of predictable shapes from the description of the invention is within the range that can be changed for easy implementation by a skilled person. You will see it extremely self-evident.

1: enclosure 10: top plate
20: door 30: upper guide
31: fixed portion 32: upper support portion
33: lower support portion 34: insertion space
40: lower guide 41: fixed part
41A: support 42: vertical portion
43: insertion part 44: fastening pin
45: elastic spring 50: ventilation unit
51: fixing plate 51A: ventilation
52: first flow path partition plate 52A: inlet hole
53: second flow path partition plate 53A: discharge hole
54: spacer A, A': slope
B: protrusion G: sealing member

Claims (5)

An upper plate 10 having a predetermined size installed to form an upper surface of the box-shaped enclosure 1 with an open side;
A door 20 having a predetermined size installed to be openable and closed on an open side of the enclosure 1;
An upper guide 30 installed horizontally along the front end of the upper plate 10 in the direction in which the door 20 is installed;
A lower guide 40 having a predetermined length horizontally installed along an upper end of the door 20 so that a predetermined width overlaps the upper guide 30 when the door 20 is closed; And
A plurality of ventilation units 50 installed through the door 20;
Including,
The lower guide 40,
A fixing part 41 having a predetermined length that is closely installed and fixed along the upper surface of the door 20;
A vertical portion 42 having a predetermined length vertically formed along one end of the fixing portion 41; And
An insertion portion 43 having a predetermined length protruding horizontally so as to overlap the upper guide 30 with a predetermined width at the front end of the vertical portion 42;
A switchboard having an IP55 dustproof and waterproof rating, comprising: a.
The method according to claim 1,
The upper guide 30,
A switchboard with IP55 dustproof and waterproof rating, characterized in that it is formed in a "C" cross-sectional shape.
delete The method according to claim 1,
The insertion part 43,
A switchboard having IP55 dustproof and waterproof rating, characterized in that it is formed inclined at a predetermined angle instead of horizontally.
The method according to claim 1,
At the tip of the insertion part 43,
A switchboard having IP55 dustproof and waterproof rating, characterized in that a sealing member having a "C" cross-sectional shape in contact with the upper guide 30 is installed.

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