KR102148458B1 - Increased ease of maintenance and reduced power consumption lighting signs - Google Patents

Abstract

The present invention relates to an increase in maintenance convenience and a power consumption reduction type lighting sign, and more specifically, to an increase in maintenance convenience and a power consumption reduction type lighting sign, which can reduce maintenance costs and minimize traffic congestion by easily repairing or replacing LEDs and converters used for power conversion and supply. The increase in maintenance convenience and the power consumption reduction type lighting sign includes: a base panel; and an LED module provided on a front portion of the base panel.

Description

Increased ease of maintenance and reduced power consumption lighting signs}

In particular, the present invention relates to an increase in maintenance convenience and power consumption reduction type lighting signs capable of reducing maintenance costs and minimizing traffic congestion by easily repairing or replacing an LED and a converter used for supplying and converting power. .

On roads and sidewalks, road signs that guide drivers and pedestrians with road information such as destinations, and traffic signs such as caution signs, regulatory signs, instruction signs, and auxiliary signs are installed on the road for safe driving. The form and standard are established.

A caution sign is a sign that informs the user to take necessary safety measures when the road condition is dangerous or there are dangerous objects on or near the road.It is formed in an equilateral triangle shape with a red border on a yellow background, and red is used to inform the driver. Make it possible to detect danger.

In addition, regulatory signs inform various restrictions and prohibitions for the safety of road traffic, and are drawn with red borders and horizontal lines on circular, inverted triangle, and octagonal signs with white and red backgrounds.

An indication sign is a guide that informs the necessary instructions for the safety of road traffic, such as the way of road and traffic division, and guides road users to comply with the rules to be followed while driving.

Round, square, and pentagonal signs on a blue background are used, and white arrow poems, symbols, and characters are displayed.

Auxiliary signs supplement the main function of caution signs, regulatory signs, and instruction signs, and serve to clearly inform road users of the meaning of signs, and write letters or symbols of supplementary content on white-based rectangular and square signs.

Most of these signs attach a reflective paper that reflects retroreflectively on a plate made of aluminum or the like, thereby reflecting light from car lights to provide information to the driver.

However, in this method, when rain or fog occurs, the retroreflective performance is remarkably deteriorated, and the original function of the sign cannot be transmitted to the driver, thereby increasing the risk of an accident.

In this way, patent document 0001 (KR 10-1823840 B1) has been proposed in order to prevent an increase in the risk of an accident due to a decrease in reflective performance of a conventional sign.

Patent document 0001 relates to an eco-friendly LED road traffic sign, and has an advantage of greatly improving energy efficiency by recovering part of the heat energy consumed when the LED is lit using a thermoelectric element.

However, if the converter that converts the supplied AC power into DC power and supplies it to the LED fails, or if some of the LEDs fail, all LEDs connected in series with the failed LED are not turned on, which requires frequent follow-up management. .

In addition, there is a problem in that traffic congestion for a long time is caused, and a large replacement cost is required as it is necessary to block the passage of a vehicle and use a crane, an aerial vehicle, etc. in order to replace a broken LED and a converter.

KR 10-1823840 B1 (2018.01.24)

As described above, the present invention for solving the conventional problem enables repair and replacement in the field without dismantling in the event of a failure of a lighting sign, thereby reducing maintenance costs and minimizing traffic congestion, increasing maintenance convenience and reducing power consumption. Its purpose is to provide illuminated signs.

The present invention for achieving the above object is composed of a transmission plate through which light is transmitted, a light blocking sheet provided on the front side of the transmission plate, and a reflection sheet provided on the front side of the light blocking sheet, and the light blocking And a guide plate having an opening having a shape corresponding to a display portion to be guided to the sheet and the reflective sheet. It provides a lighting sign that increases maintenance convenience and reduces power consumption.

Here, it is preferable that a diffusion sheet is provided between the transmission plate and the light blocking sheet.

And, the base panel; An LED module provided on the front side of the base panel; A side plate part provided on the edge of the base panel in a state in which the LED module is accommodated and the guide plate is installed on the front side thereof, and is disposed under the receiving space of the side plate part to convert an AC voltage to a DC voltage. One or more converters that convert and supply to the LED module are disposed, at least one lower repair hole is formed under the base panel corresponding to the position of the converter, and a lower cover for closing the lower repair hole in a watertight state It is preferable to be provided.

In addition, a front extension part extending forward from the upper side and a vertical extension part extending downward from the front end of the front extension part are provided in the lower repair hole of the base panel, and the converter is fixedly installed on the vertical extension part. It is desirable to be.

Here, it is preferable that the lower end of the lower cover is hinged to the lower portion of the lower repair tool of the base panel.

In addition, the LED module comprises a main LED light source in which a plurality of LEDs are connected in series to a substrate, and an auxiliary LED light source in which a plurality of LEDs are connected in series to the substrate, and a light source for sensing a current input to the main LED light source. It is preferable that a current detection unit and a power bypass unit supplying power to the auxiliary LED light source when current is not input to the main LED light source by the light source current detection unit are provided.

Further, it is preferable that the light source current detection unit includes a transistor Q1 that is turned off when the main LED light source is not driven by connecting a contact point and a base on the cathode side of the main LED light source.

In addition, the power bypass unit is connected between the cathode side of the auxiliary LED light source and the cathode side of the main LED light source and is turned off when the transistor Q1 is turned on, and is turned on when the transistor Q1 is turned off. It is preferably made of a MOSFET (M1).

In addition, a plurality of guide grooves having a'T' shape in cross section are formed in the front part of the base panel, and a fixing part inserted and fixed to the guide groove of the base panel is formed in the rear part, and the LED module is fixed to the front part. It is preferable that the LED fixing bar is provided, so that the installation and replacement of the LED module is easy.

In addition, a plurality of side repair holes having a size through which the LED fixing bar can pass are formed on one side plate of the side plate portion at a position corresponding to the guide groove of the base panel, and a side cover for closing the side repair hole in a watertight state is provided. It is desirable.

Here, it is preferable that the lower end of the side cover is hinged to the lower portion of the side repair tool of the side plate.

The present invention provides a light blocking sheet provided on the front side of a transmission plate through which light is transmitted to block light transmitted through the transmission plate, and a reflective sheet provided on the front side of the light blocking sheet to reflect light. By forming an opening having a shape corresponding to a display unit that displays information on the intermediate elapsed time and direction in one or more of characters, symbols, and figures, and illuminating the display unit through the opening, the display unit is not only daytime, but also at night and in bad weather. There is an effect that can greatly improve the visibility of.

Furthermore, the present invention can easily separate and replace a malfunctioning converter after removing the lower cover in which one or more lower repair ports formed in the lower part of the base panel corresponding to the location of the converter are closed in a watertight state, thereby reducing maintenance costs. It has the effect of reducing and minimizing traffic congestion.

In addition, the present invention is provided with a main LED light source, an auxiliary LED light source, a light source current detection unit and a power bypass unit, so that even if the main LED light source emitting the guide display unit of the guide plate fails, the visibility of the guide display unit is secured by the auxiliary LED light source. As it can, there is no need to separately replace the LED light source, so there is an effect that it does not cause traffic congestion due to the replacement work and does not require replacement cost.

1 is a perspective view schematically showing an increase in maintenance convenience and power consumption reduction type lighting sign according to an embodiment of the present invention,
2 is a cross-sectional view taken along line A-A of FIG. 1,
3 is a perspective view schematically showing an installation state of a lighting sign for increasing maintenance convenience and reducing power consumption, which is an embodiment of the present invention;
4 is a cross-sectional view taken along line B-B of FIG. 3,
Figure 5 is a perspective view schematically showing an increase in maintenance convenience and power consumption reduction type lighting sign according to another embodiment of the present invention,
6 is a cross-sectional view taken along line C-C of FIG. 5,
7 is a perspective view schematically showing an installation state of a lighting sign that increases maintenance convenience and reduces power consumption, which is another embodiment of the present invention;
8 is a cross-sectional view taken along line D-D of FIG. 7,
9 is a longitudinal sectional view schematically showing an example of a process of forming a front extension part and a vertical extension part in the lower repair hole of the base panel,
10 is a longitudinal sectional view schematically showing a state in which the converter fixing part is fixed to the front side of the lower repair hole of the base panel,
11 is a rear perspective view schematically showing a state in which the lower cover of an example is separated from the base panel,
12 is a longitudinal sectional view schematically showing a state in which a lower cover of another example of a lower repair tool of a base panel is opened,
13 is a block diagram schematically showing a connection state of a light source current detection unit and a power bypass unit,
14 and 15 are circuit diagrams schematically showing current detection of a light source current detection unit and power supply of a power bypass unit, respectively,
16 is a cross-sectional view schematically showing a state in which a fixing part of an LED fixing bar in which an LED module is fixed to a guide groove formed on a base panel is inserted and fixed,
17 is a perspective view schematically showing an LED fixing bar to which an LED module of another example is fixed,
18 is a cross-sectional view schematically showing a state in which the fixing part of the LED fixing bar in which the LED module of another example is fixed to the guide groove formed on the base panel is inserted and fixed,
19 is a cross-sectional view schematically showing a state in which the fixing part of the LED fixing bar in which the LED module is fixed to the guide groove formed in the fixing body fixed to the base panel is inserted and fixed,
20 is a partially cutaway front view schematically showing a state in which the LED fixing bar is separated from the base panel,
21 is a side view of FIG. 20.

Hereinafter, an embodiment of a lighting sign for increasing maintenance convenience and reducing power consumption of the present invention will be described in detail with reference to the drawings, and the scope of the present invention is not limited to the following embodiments.

FIG. 1 is a perspective view schematically illustrating an improved maintenance convenience and reduced power consumption type lighting sign according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1.

An exemplary embodiment of the present invention is a guide plate composed of a transmission plate 401, a light blocking sheet 403, and a reflective sheet 404, as shown in Figs. 40).

The transmission plate 401 may be formed of various types, and for example, may be made of a synthetic resin such as acrylic made of a transparent or translucent material through which light of an LED module to be described later passes.

The light blocking sheet 403 may be fixed on the front side of the transmission plate 401 in various ways, such as fixing a piece, fixing a bolt, and fixing a joint, so as to block light passing through the transmission plate 401.

The reflective sheet 404 is fixed to the front side of the light blocking sheet 403 in various ways, such as fixing a piece, fixing a bolt, and fixing a joint, so that the reflection sheet 404 is applied to the outside such as sunlight and vehicle lights. It can reflect light.

The light blocking sheet 403 and the reflective sheet 404 have a slit shape having a shape corresponding to a display unit that displays information on a starting point, an end point, an intermediate course, and a direction of a road in one or more of characters, symbols, and figures. An opening 410 is formed.

Part of the light of the LED module may illuminate the display while passing through the opening 410.

Here, the opening 410 having a shape corresponding to the display unit through the reflective sheet 404 reflecting external light even if a failure occurs in the LED module and light is not emitted from the LED module. Can be easily recognized.

As described above, by illuminating the display unit through the opening 410, there is an advantage that the visibility of the display unit can be greatly improved during daytime as well as at night and in bad weather.

In order to further improve the visibility of the display unit, a diffusion sheet 402 that diffuses and evenly distributes light transmitted through the transmission plate 401 between the transmission plate 401 and the light blocking sheet 403 It can be fixed in various ways, such as fixing a piece, fixing a bolt, and fixing a joint.

3 is a perspective view schematically showing an installation state of an improved maintenance convenience and reduced power consumption type lighting sign according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3.

Next, as shown in FIGS. 3 and 4, a base panel 10, an LED module 20, a side plate 30, a converter 50, and a lower cover 60 may be further provided.

First, the base panel 10 may be fixedly installed on a crossbar 31 that is fixedly installed horizontally on the upper portion of the support 3.

At least one lower repair tool 101 for separating and replacing the converter 50 is formed under the base panel 10 corresponding to the position of the converter 50 as shown in FIG. 4.

Next, the LED module 20 is for illuminating the opening 410 having a shape corresponding to the display portion by emitting light to improve the visibility of the display portion of the guide plate 40, and the side plate portion 30 ) Can be fixedly installed in various ways, such as fixing bolts, to the front portion of the base panel 10 in the receiving space 301 formed in the interior.

The LED module 20 includes, for example, a substrate 201 in a long direction extending from one side of the base panel 10 to the other side with a predetermined length; A plurality of LEDs 202 disposed at equal intervals on the front side of the substrate 201; may include.

And, of course, the LED module 20 may be arranged in a plurality of equal intervals on the front portion of the base panel 10.

However, in order to significantly reduce power consumption when too many of the LED modules 20 are disposed on the front part of the base panel 10, the power consumption is too large, facing the opening of the guide plate 40. It is preferable that the LED module 20 is disposed only on the front portion of the base panel 10.

Next, so that the receiving space 301 is formed inside the side plate part 30, the side plate part 30 is provided with one side edge of the front side of the base panel 10, the other side edge of the front side, and the upper edge of the front side side. It may be composed of one side plate 310, the other side plate (320 in FIG. 11), an upper side plate 330, and a lower side plate (340 in FIG. 4) that can be watertightly installed in various ways, such as fixing bolts on the lower edge of the front side. .

In FIG. 1, the side plate part 30 composed of the one side plate 310, the other side part 320, the upper side plate 330, and the lower side plate 340 is shown to be formed in a rectangular frame shape, but is limited thereto. It is not possible, and it is sufficient if it is formed in a shape corresponding to the shape of the guide plate 40.

With the guide plate 40 closing the receiving space 301 of the side plate part 30, the guide plate 40 may be fixedly installed on the front side of the side plate part 30 in various ways, such as fixing bolts.

Figure 5 is a perspective view schematically showing an increase in maintenance convenience and power consumption reduction type lighting sign which is another embodiment of the present invention, Figure 6 is a cross-sectional view taken along line C-C of Figure 5, Figure 7 is another perspective view of the present invention It is a perspective view schematically showing an installation state of an increase in convenience of towing maintenance and a power consumption reduction type lighting sign, and FIG. 8 is a cross-sectional view taken along line D-D of FIG. 7.

Next, as another example, the guide plate 40 may be largely composed of a first guide plate 40a and a second guide plate 40b as shown in FIGS. 5 to 8.

The first guide plate 40a may be fixed to the front side of the side plate part 30 in various ways, such as bolt fixing.

One or more fitting holes 40c may be disposed at regular intervals on the first guide plate 40a.

The second guide plate 40b is composed of the transmission plate 401, the diffusion sheet 402, the light blocking sheet 403, and the reflective sheet 404, and the fitting hole of the first guide plate 40a ( It can be fixed in a variety of ways, such as a detachable force-fitting fix on 40c).

When the guide plate 40 is damaged or damaged, only the first guide plate 40a or the second guide plate 40b corresponding to the damaged and damaged part can be easily replaced without replacing the entire guide plate 40 There will be.

Next, the converter 50 is for driving the LED module 20 by converting the input AC power into DC power and supplying it to the LED module 20, the lower repair tool of the base panel 10 It is installed in the receiving space 301 of the side plate part 30 so that the converter 50 can be installed and replaced through 101.

The number of the converters 50 installed in the receiving space 301 of the side plate part 30 is not largely limited, but is preferably provided in a number corresponding to the number of the LED modules 20.

In order to install the converter 50 in the accommodating space 301 of the side plate part 30, for example, a front extension part 110 and a vertical extension part 120 may be provided.

The front extension part 110 may be horizontally extended to a predetermined length from the upper side of the lower repair hole 101 of the base panel 10 to the front side of the base panel 10.

The vertical extension part 120 may be vertically extended from a front end of the front extension part 110 to a lower direction of the front extension part 110 by a predetermined length.

The converter 50 may be fixed to a rear surface opposite to the front surface of the vertical extension unit 120 in various ways such as bolt fixing.

9 is a longitudinal cross-sectional view schematically showing an example of a process of forming a front extension part and a vertical extension part in the lower repair hole of the base panel.

In order to provide the front side extension part 110 and the vertical extension part 120, for example, shear processing, etc., is applied to a part of the lower part of the base panel 10 where the lower repair tool 101 is to be formed. In addition to forming a'┗┛'-shaped incision line (L in Fig. 11), the lower part of the base panel 10 inside the incision line (L) is shown in Fig. 9a). (10) is horizontally bent in the anterior direction to form the lower repair tool 101 and the anterior extension 110, and the anterior edge of the anterior extension 110 as shown in b) of FIG. The vertical extension part 120 may be formed by vertically bending the tenon 110 in the downward direction.

10 is a longitudinal sectional view schematically showing a state in which the converter fixing part is fixed to the front side of the lower repair tool of the base panel.

As another example, the lower repair tool 101 may be formed at a portion of the lower part of the base panel 10 in which the lower repair tool 101 is to be formed by punching or the like.

In addition, as shown in FIG. 10, the converter fixing part 200 for fixing the converter 50 to the front side of the lower repair tool 101 may be provided in various ways such as bolt fixing.

The converter fixing part 200 may be largely composed of a front vertical fixing plate 200a, an upper horizontal fixing plate 200b, and a lower horizontal fixing plate 200c.

The front vertical fixing plate 200a may be vertically disposed in the front direction of the lower repair tool 101 while maintaining a predetermined distance from the lower repair tool 101.

The converter 50 may be fixed in various ways, such as bolt fixing, on a rear surface opposite to the front side of the front vertical fixing plate 200a.

With the front side of the upper horizontal fixing plate 200b connected to the upper part of the front vertical fixing plate 200a, the rear side of the upper horizontal fixing plate 200b is the base panel 10 part around the upper part of the lower repair hole 101 It can be fixed in various ways such as welding fixing and bolt fixing.

With the front side of the lower horizontal fixing plate 200c connected to the lower part of the front vertical fixing plate 200a, the rear side of the lower horizontal fixing plate 200c is the base panel 10 around the lower part of the lower repair hole 101 It can be fixed in various ways, such as welding fixing and bolt fixing on the part.

11 is a rear perspective view schematically showing a state in which a lower cover of an example is separated from the base panel.

As shown in FIG. 11, the lower repair tool 101 may be formed on one lower side and the other lower side of the base panel 10, respectively.

Next, the lower cover 60 is for closing the lower repair hole 101 of the base panel 10 in a watertight state.

The lower cover 60 is, for example, to be fixed by a fastening member 5 such as a bolt while wrapping the lower repair tool 101 on the lower rear surface of the base panel 10 as shown in FIG. I can.

12 is a longitudinal cross-sectional view schematically showing a state in which a lower cover of another example of a lower repair tool of a base panel is opened.

On the other hand, when a safety accident such as a breakdown occurs in the converter 50, the lower cover 60 is separated from the base panel 10 to open the lower repair hole 101, and the converter 50 As another example, as shown in FIG. 12, in order to prevent the lower cover 60 from falling during work and improve the workability of the operator, the lower end of the lower cover 60 should be replaced. It is good to be hinged to the portion of the base panel 10 around the lower portion of the sphere 101.

In another example, the upper end of the lower cover 60 may be locked and unlocked at the portion of the base panel 10 around the upper portion of the lower repair tool 101 by a known locking means.

The converter malfunctions easily after removing the lower cover 60 in which one or more lower repair ports 101 formed under the base panel 10 corresponding to the position of the converter 50 are closed in a watertight state. Since (50) can be easily removed and replaced, there is an advantage of reducing maintenance costs and minimizing traffic congestion.

13 is a block diagram schematically illustrating a connection state of a light source current detection unit and a power bypass unit.

Next, as shown in FIG. 13, a light source current detection unit 90 and a power bypass unit 100 may be further provided.

Next, the light source current detection unit 90 detects a current input to the main LED light source 210 to be described later as shown in FIG. 13.

In addition, when a case where a safety accident such as a failure occurs in the main LED light source 210 and the current is not input to the main LED light source 210 is detected by the light source current detection unit 90, the power bypass The unit 100 supplies power to an auxiliary LED light source 220 to be described later.

As described above, the main LED light source 210, the auxiliary LED light source 220, the light source current detection unit 90, and the power bypass unit 100 are provided, so that the guide display unit 410 of the guide plate 40 emit light. Even if the main LED light source 210 is broken, the visibility of the guide display unit 410 can be secured by the auxiliary LED light source 220, so there is no need to separately replace the LED light source, resulting in traffic congestion due to the replacement work. There is an advantage in that it does not cause a problem and does not require replacement cost.

14 and 15 are circuit diagrams schematically showing current detection of a light source current detection unit and power supply of a power bypass unit, respectively.

In the light source current detection unit 90, the main LED light source 210 is connected to the contact point of the cathode side and a safety accident such as a failure occurs in the main LED light source 210, and the main LED light source 210 is driven. Otherwise, the transistor Q1 may be turned off.

Further, the power bypass unit 100 is connected between the cathode side of the auxiliary LED light source 220 and the cathode side of the main LED light source 210 and is turned off when the transistor Q1 is turned on, and the When the transistor Q1 is turned off, the MOSFET M1 may be turned on.

As an example, as shown in FIG. 14, when a voltage of VCC (DC = 12V) is applied, a plurality of the main LED light sources 210 are turned on, and at this time, a current flows through the resistor R2 to form the light source current detection unit 90. When (Q1) is turned on, the MOSFET (M1) constituting the power bypass unit 100 is turned off, and the plurality of auxiliary LED light sources 220 are turned off.

On the other hand, as shown in FIG. 15, when a safety accident such as a failure occurs in the plurality of main LED light sources 210 and the main LED light source 210 is turned off, current does not flow through the resistor R1, so the light source current detection unit ( Since the transistor Q1 constituting 90 is turned off, a voltage of 12V is applied to the MOSFET M1 constituting the power bypass unit 100 through the resistor R3, so that the MOSFET constituting the power bypass unit 100 ( M1) is turned on so that the plurality of auxiliary LED light sources 220 can be turned on.

16 is a cross-sectional view schematically showing a state in which a fixing part of an LED fixing bar in which an LED module is fixed to a guide groove formed on a base panel is inserted and fixed.

Next, as shown in FIG. 16, as an example, a guide groove 130 extending horizontally in a horizontal direction, that is, from one side of the base panel 10 to the other side, is provided on the front portion of the base panel 10. In the vertical direction of (10), a plurality may be formed at regular intervals.

The cross-sectional shape of the guide groove 130 may be formed in various shapes, for example, it may be formed in a'T' shape.

In addition, an LED fixing bar 70 to which the LED module 20 is fixed may be provided.

The LED fixing bar 70 may be horizontally extended to a predetermined length from one side of the base panel 10 to the other side.

The substrate 201 of the LED module 20 may be fixed to the front surface of the LED fixing bar 70 in various ways, such as bolt fixing.

The rear portion of the LED fixing bar 70 is formed in a shape corresponding to the guide groove 130 of the base panel 10, and the guide groove 130 slides from one side of the guide groove 130 to the other side. A fixing part 710 that is detachably inserted and fixed to the may be formed.

17 is a perspective view schematically showing an LED fixing bar to which an LED module of another example is fixed, and FIG. 18 is a schematic view showing a state in which a fixing part of the LED fixing bar to which the LED module of another example is fixed to a guide groove formed on a base panel is inserted and fixed. It is a cross-sectional view.

Next, the LED module 20 may be made of a main LED light source 210 and an auxiliary LED light source 220 as another example, as shown in FIGS. 17 and 18.

The main LED light source 210 includes a substrate 211 in a long direction extending from one side of the base panel 10 to the other side with a predetermined length; A plurality of LEDs 212 connected in series at equal intervals on the front side of the substrate 211; may be composed of.

The auxiliary LED light source 220 extends from one side of the base panel 10 to the other with a predetermined length and is disposed in the lower direction of the substrate 211 of the main LED light source 210 ( 221) and; A plurality of LEDs 222 connected in series at equal intervals on the front side of the substrate 221; may consist of.

The substrate 211 of the main LED light source 210 and the substrate 221 of the auxiliary LED light source 220 may be fixed in various ways, such as fixing bolts on the upper and lower front portions of the LED fixing bar 70, respectively. have.

The operator slides the LED fixing bar 70 together with the LED module 20 from the guide groove 130 of the base panel 10 to the outside of one side of the guide groove 130 to move the guide groove 130. ) Can be easily separated from, and thus, installation and replacement of the LED module 20 can be facilitated.

19 is a cross-sectional view schematically showing a state in which the fixing part of the LED fixing bar in which the LED module is fixed to the guide groove formed in the fixing body fixed to the base panel is inserted and fixed.

Next, as another example, as shown in FIG. 19, a plurality of fixed bodies 300 may be provided on the front portion of the base panel 10 at regular intervals in the vertical direction of the base panel 10.

The plurality of fixed bodies 300 may be horizontally extended from one side of the base panel 10 to the other side by a predetermined length.

The upper and lower portions of the plurality of fixing bodies 300 may be fixed to the front surface of the base panel 10 in various ways, such as bolt fixing or welding fixing, respectively.

In the front part of the middle portion of the plurality of fixed bodies 300, for example, a guide groove 300a which may be formed in a'T' shape may be formed to extend horizontally along the plurality of fixed bodies 300. have.

The fixing part 710 of the LED fixing bar 70 may be inserted and fixed in the guide groove 300a of the plurality of fixing bodies 300.

20 is a partially cutaway front view schematically showing a state in which the LED fixing bar is separated from the base panel.

As shown in FIG. 20, the LED fixing bar 70 is located on one side plate 310 at a position corresponding to the guide groove 130 of the base panel 10 among the one side plate 310 of the side plate 30. A plurality of side repair tools 311 having a size through which) may pass may be formed in a plurality of vertical intervals of the one side plate 310.

In addition, a side cover 80 for closing the side repair tool 311 in a watertight state may be provided on one side plate 310 of the side plate part 30.

The side cover 80 may extend in the vertical direction of the one side plate 310 of the side plate part 30 to a length sufficient to cover all of the plurality of side repair tools 311.

The side cover 80 may be detachably fastened and fixed to the side plate 310 of the side plate 30 by a fastening member 5 such as a bolt while surrounding the side repair tool 311, for example. I can.

Meanwhile, when a safety accident such as a failure occurs in the LED module 20, the side cover 80 is separated from the side plate 310 of the side plate 30 to open the side repair tool 311 After that, it is necessary to separate and replace the LED fixing bar 70 along with the corresponding LED module 20 in which a safety accident such as a failure occurred, to one side of the base panel 10, and at this time, the side part during operation. In order to prevent the fall of the cover 80 and improve the workability of the operator, as another example, as shown in FIG. 20, the lower end of the side cover 80 is of the side plate 310 of the side plate 30 It is better to hinge it on the bottom.

In another example, the upper end of the side cover 80 may be locked and unlocked on the upper side of the one side plate 310 of the side plate 30 by a known locking means.

21 is a side view of FIG. 20.

On the other hand, a plurality of the guide grooves (300a) of the fixed body 300 fixed to the front portion of the base panel 10 can be located in the side repair tool 311 as shown in FIG. The middle portion of the fixed body 300 may be formed to protrude to a predetermined length in the front direction of the base panel 10.

The LED fixing bar 70 along with the corresponding LED module 20 in which a safety accident such as a failure has occurred from the guide grooves 300a of the plurality of fixed bodies 300 is moved to the outside of one side of the base panel 10 During the separation process, the LED fixing bar 70 can be easily separated without interference while being caught on the side plate 310 around the side repair tool 311, so that the workability of the operator can be further improved. There will be.

10; Base panel, 20; LED module,
30; Side plate 40; Sign,
50; Converter, 60; Lower cover.

Claims (11)

A base panel;
An LED module provided on the front side of the base panel comprising a main LED light source in which a plurality of LEDs are connected in series to a substrate, and an auxiliary LED light source in which a plurality of LEDs are connected in series to the substrate;
A display unit comprising a transmissive plate through which light is transmitted, a light blocking sheet provided on the front side of the transmissive plate, and a reflective sheet provided on the front side of the light blocking sheet, the light blocking sheet and a display to be guided to the reflective sheet A guide plate having an opening having a corresponding shape;
A side plate portion provided on an edge of the base panel in a state accommodating the LED module, and on which the guide plate is installed on the front side;
A light source current detector configured of a transistor Q1 that is connected to a contact point on the cathode side of the main LED light source and turns off when the main LED light source is not driven, and senses a current input to the main LED light source;
It consists of a MOSFET (M1) that is connected between the cathode side of the auxiliary LED light source and the cathode side of the main LED light source and is turned off when the transistor Q1 is turned on, and is turned on when the transistor Q1 is turned off. A power bypass unit for supplying power to the auxiliary LED light source when no current is input to the main LED light source by the light source current detection unit; and a light sign for increasing maintenance convenience and reducing power consumption, comprising: .
The method of claim 1,
An increase in maintenance convenience and a reduction in power consumption, characterized in that a diffusion sheet is provided between the transmission plate and the light blocking sheet so that the visibility of the display unit is improved by diffusing and evenly dispersing the light transmitted through the transmission plate. Lighting signs.
The method according to claim 1 or 2,
One or more converters are disposed below the receiving space of the side plate to convert AC voltage to DC voltage and supply it to the LED module,
At least one lower repair port is formed under the base panel corresponding to the position of the converter, and a lower cover for closing the lower repair port in a watertight state is provided, which increases convenience in maintenance and reduces power consumption. Lighting signs.
The method of claim 3,
A front-side extension portion extending to the front side and a vertical extension portion extending downwardly from the front end portion of the front-side extension portion are provided in the lower repair hole of the base panel,
The converter is fixed to the vertical extension unit, characterized in that the increase in maintenance convenience and power consumption reduction type lighting sign.
The method of claim 4,
An incision line is formed in a portion of the lower portion of the base panel in which the lower repair hole is to be formed, and the lower portion of the base panel inside the incision line is horizontally bent toward the front side of the base panel so that the lower repair hole and The front extension part is formed and the front side of the front side extension part is vertically bent in a downward direction of the front side extension part to form the vertical extension part.
The method of claim 3,
A front vertical fixing plate which is vertically disposed in the front direction of the lower repair tool and fixed to the rear of the lower repair tool while maintaining a predetermined distance from the lower repair tool;
An upper horizontal fixing plate having a front side connected to an upper portion of the front vertical fixing plate and a rear side fixed to the base panel portion around the upper portion of the lower repair tool,
A converter fixing part comprising a lower horizontal fixing plate connected to the lower part of the front vertical fixing plate and the rear part fixed to the base panel part around the lower part of the lower repair tool is provided. Type lighting signs.
The method of claim 3,
In order to prevent the lower cover from falling by opening the lower repair port, a lower end of the lower cover is hingedly coupled to a lower part of the lower repair port of the base panel.
The method of claim 3,
A plurality of guide grooves having a cross section of a'T' shape in the horizontal direction are formed on the front portion of the base panel,
An increase in convenience of maintenance, characterized in that a fixing part inserted and fixed in the guide groove of the base panel is formed on the rear side, and an LED fixing bar to which the LED module is fixed on the front side is provided, so that installation and replacement of the LED module is easy, and Signs for reducing power consumption.
The method of claim 8,
One side plate of the side plate portion is formed with a plurality of side repair holes having a size through which the LED fixing bar can pass at a position corresponding to the guide groove of the base panel,
Increasing convenience of maintenance and reducing power consumption type lighting sign, characterized in that it is provided with a side cover for closing the side repair tool in a watertight state.
The method of claim 9,
In order to prevent the side cover from falling by opening the side repair tool, a lower end of the side cover is hingedly coupled to a lower portion of the side repair tool of the side plate.
The method of claim 3,
The guide plate includes: a first guide plate in which at least one fitting hole is formed at regular intervals;
Consisting of the transmission plate and a reflective sheet provided on the front side of the light blocking sheet, a second guide plate that is detachably fixed to a fitting hole of the first guide plate, and has the opening formed therein; corresponding to the damaged or damaged portion Increased maintenance convenience and reduced power consumption type lighting sign, characterized in that it is possible to replace only the first or second guide plate.

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