KR102335413B1 - Electric signboard having function of corrosion protection and fire prevention - Google Patents

Abstract

The present invention provides an electric signboard having functions of corrosion protection and fire prevention for cooling air flowing inside the electric signboard, condensing and removing moisture included in the air, heating the air with moisture removed again, and flowing the air inside a housing (100) to maintain a temperature equal to or higher than a dew-point temperature inside the housing (100) so as to prevent moisture in the air from condensing, so the present invention can prevent corrosion of electric and electronic devices and the housing (100) inside the electric signboard (1) and fire caused by the corrosion.

Description

Electronic signage with internal corrosion and fire protection {ELECTRIC SIGNBOARD HAVING FUNCTION OF CORROSION PROTECTION AND FIRE PREVENTION}

The present invention relates to an electric sign, and more particularly, to an electric sign having an internal corrosion and fire prevention function configured to prevent corrosion by moisture contained in the air flowing into the electric sign and the occurrence of a fire due to corrosion. is about

In general, as a means of delivering texts and images to unspecified people using a single medium, it is well known that outdoor electric signs are widely used as large information boards in playgrounds, traffic information boards on roads, railroad passenger/travel information boards, outdoor billboards, etc. the fact of

The electronic display board used in this way is to receive and display the video signal transmitted by the main controller properly re-editing the video source transmitted from the operation unit including the video source such as text, image, and video and the operation equipment such as the operating PC. is composed

To this end, the electric sign board has a local controller in charge of the video editing area for each part, a plurality of LED drivers that receive the video signal of the local controller to control the operation of the LED module, and a plate shape to display the image by flickering by the LED driver A display panel composed of a plurality of LED modules arranged in

These outdoor electric sign boards are mainly used in electric and electronic devices and housings (cases), etc. inside the electric sign board at the location where they are attached, in the case of rain fog or high humidity, air containing moisture flows into the interior of the housing and moisture condenses and attaches. Causes corrosion. Due to this corrosion, the insulating part changes into electrical resistance, which causes leakage current and heat, and becomes a ignition point of a fire. In the case of an electric sign installed on the shore, when fog from the coast including salt flows into the electric sign, the corrosion rate is particularly high due to the salt, and there is a problem that the fire rate is high.

Registered Utility Model No. 20-0377995 Registered Utility Model No. 20-0434538

Therefore, an embodiment of the present invention for solving the problems of the prior art described above, removes moisture contained in the air flowing into the electric sign board to prevent moisture from flowing into the electric sign board, and temperature and ventilation inside the electric sign board To provide an electric sign with internal corrosion and fire prevention functions that prevents the occurrence of dew condensation inside the electric sign by controlling Make it the problem you want to solve.

In one embodiment of the present invention for achieving the above-described problem of the present invention, a display panel composed of a plurality of LED modules is mounted on the outer surface, and a local controller responsible for the image editing area for each part, and the image of the local controller In the electronic signboard for receiving a signal and displaying an image through the display panel having a housing 100 in which a plurality of LED drivers for controlling the driving of the LED module are built in, the external temperature and humidity of the housing 100 are detected an external housing temperature and humidity sensor unit 200 including one or more temperature and humidity sensors; an inner housing temperature-humidity sensor unit 300 including one or more temperature-humidity sensors for detecting the internal temperature and humidity of the housing 100; a housing fan heater unit 400 that heats the air inside the housing to increase the temperature inside the housing; an exhaust fan unit 500 installed in the temperature and humidity control exhaust port 101 of the housing 100 to discharge internal air of the housing 10; It is configured to include a moisture removal air temperature sensor 623 and a temperature and humidity control air temperature sensor 625 and is mounted on the housing air inlet 103 side of the housing 100 to remove moisture into the housing and set the target temperature. an intake air dehumidifying unit 600 for introducing temperature and humidity control air, which is external air heated to have; And the external and internal temperature and humidity of the housing are detected from the outer housing temperature and humidity sensor unit 200 and the inner housing temperature and humidity sensor unit 300, and the moisture removal air temperature sensor 623 and the temperature and humidity control air temperature sensor ( 625), after detecting the temperature for each part of the intake air dehumidifying unit 600, the housing fan heater unit 400, the exhaust fan unit 500, and the suction air to adjust the temperature and humidity inside the housing A monitoring control unit 700 that controls the dehumidifying unit 600 to control the temperature and humidity inside the housing 100; It provides an electric signboard having an internal corrosion and fire prevention function, characterized in that it can prevent the occurrence of a fire caused by it.

The outer housing temperature and humidity sensor unit 200 and the inner housing temperature and humidity sensor unit 300 include a temperature sensor and a humidity sensor, and the outer housing temperature and humidity sensor unit 200 is installed at least one outside of the housing 100 . At least one inner housing temperature and humidity sensor unit 300 is installed inside the housing 100, and the outer housing temperature and humidity sensor unit 200 detects the external temperature and humidity of the housing 100 and then monitors the It is transmitted to the control unit 700, and the inner housing temperature and humidity sensor unit 300 is configured to detect the internal temperature and humidity of the housing 100 and then transmit it to the monitoring control unit 700.

One or more housing fan heater units 400 are installed inside the housing 100 and are driven according to the temperature and humidity control of the monitoring and control unit 700 to heat and circulate the air inside the housing 100 to the housing 100 . ) characterized in that it is configured to increase the internal temperature of the.

The exhaust fan unit 500 includes an exhaust fan 510 installed for each temperature and humidity control exhaust port 101 and an exhaust port dust-proof filter 520, and is installed at one or more temperature and humidity control exhaust ports 101 of the housing 100. , characterized in that it is configured to control the temperature and humidity inside the housing 100 by discharging the air inside the housing 100 to the outside.

The suction air dehumidifying unit 600 includes a flow path through which humidity is removed after external air is introduced and heated temperature and humidity control air is introduced into the housing 100 to maintain a temperature above the dew point inside the housing 100 . an intake air inlet chamber 610 to form; an inlet dust-proof filter 601 installed on the inlet side of the intake air inlet chamber 610 to block the inflow of rainwater or foreign substances contained in external air; It is installed inside the intake air inlet chamber 610 to remove moisture by cooling the introduced air, and the temperature and humidity control air heated to the dew point temperature or higher inside the housing 100 is discharged. a temperature and humidity controller 620 for performing temperature and humidity control; and a temperature-humidity regulator fan 626 installed on the downstream side of the temperature-humidity controller 620 to provide an air flow force inside the intake air inlet chamber 610 by blowing the temperature-humidity control air into the housing 100 . ) is characterized in that it is configured to include.

In the present invention having the above-described configuration, by cooling the air flowing into the electric sign board to condense and remove the moisture contained in the air, and then heat the dehumidified air again and introduce it into the housing 100 . The inside of the housing 100 is maintained at a temperature above the dew point temperature to prevent moisture contained in the air from condensing. It provides an effect that makes it possible.

1 is a schematic configuration diagram of an electric sign 1 according to an embodiment of the present invention.
FIG. 2 is a detailed configuration diagram of the intake air dehumidifying unit 600 of FIG. 1 .
3 is a flowchart showing the temperature and humidity control control inside the housing 100 by the monitoring and control unit 700 .
4 is a flowchart showing a procedure for setting the reference temperature and humidity inside the housing (S100).
5 is a flowchart illustrating a procedure for dehumidifying the intake air (S500) by the monitoring and control unit 700;
6 is a table showing an example of setting the relative reference temperature using the measured external temperature and humidity of the housing 100 when the reference temperature and reference humidity inside the housing 100 are set.

In the following description of the present invention, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Since the embodiment according to the concept of the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiment according to the concept of the present invention to a specific disclosed form, and it should be understood that the present invention includes all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

When an element is referred to as being “connected” or “connected” to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle. Other expressions describing the relationship between elements, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The terminology used herein is used only to describe specific embodiments, and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that the described feature, number, step, operation, component, part, or a combination thereof exists, and includes one or more other features or numbers. , it is to be understood that it does not preclude the possibility of the existence or addition of steps, operations, components, parts, or combinations thereof.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings showing embodiments of the present invention.

1 is a schematic configuration diagram of an electric sign 1 according to an embodiment of the present invention, and FIG. 2 is a detailed configuration diagram of the suction air dehumidifying unit 600 of FIG. 1 .

As shown in FIGS. 1 and 2 , in the electronic signboard 1 having an internal corrosion and fire prevention function according to an embodiment of the present invention, a display panel made of a plurality of LED modules is mounted on the outer surface, and an image editing area for each part is formed. It is configured to display an image through the display panel by having a housing in which a plurality of LED drivers for controlling driving of an LED module by receiving an image signal from the local controller in charge are built-in.

Specifically, the electric sign 1 includes: an external housing temperature and humidity sensor unit 200 including one or more temperature and humidity sensors for detecting the external temperature and humidity of the housing 100; an inner housing temperature-humidity sensor unit 300 including one or more temperature-humidity sensors for detecting the internal temperature and humidity of the housing 100; a housing fan heater unit 400 that heats the air inside the housing to increase the temperature inside the housing; an exhaust fan unit 500 installed in the temperature and humidity control exhaust port 101 of the housing 100 to discharge the internal air of the housing 10; It is configured to include a moisture removal air temperature sensor 623 and a temperature and humidity control air temperature sensor 625 and is mounted on the housing air inlet 103 side of the housing 100 to remove moisture into the housing and set the target temperature. an intake air dehumidifying unit 600 for introducing temperature and humidity control air, which is external air heated to have; And the external and internal temperature and humidity of the housing are detected from the external housing temperature and humidity sensor part 200 and the internal housing temperature and humidity sensor part 300, and the moisture removal air temperature sensor 623 and the temperature and humidity control air temperature sensor ( 625), after detecting the temperature for each part of the intake air dehumidifying unit 600, the housing fan heater unit 400, the exhaust fan unit 500, and the suction air to adjust the temperature and humidity inside the housing and a monitoring control unit 700 for controlling the dehumidification unit 600 to control the temperature and humidity inside the housing 100 .

The outer housing temperature-humidity sensor unit 200 and the inner housing temperature-humidity sensor unit 300 include a temperature sensor and a humidity sensor, and the outer housing temperature-humidity sensor unit 200 is one or more installed outside the housing 100, , The inner housing temperature and humidity sensor unit 300 is installed in the interior of the housing 100 at least one, the outer housing temperature and humidity sensor unit 200 after detecting the external temperature and humidity of the housing 100, the monitoring control unit 700 , and the inner housing temperature and humidity sensor unit 300 is configured to detect the internal temperature and humidity of the housing 100 and then transmit it to the monitoring and control unit 700 .

One or more housing fan heater units 400 are installed inside the housing 100 and are driven according to the temperature and humidity control of the monitoring and control unit 700 to heat and circulate the air inside the housing 100 to the housing 100 . ) to increase the internal temperature of

The exhaust fan unit 500 is configured to include an exhaust fan 510 installed for each temperature/humidity control exhaust port 101 and an exhaust port dust-proof filter 520 . The exhaust fan unit 500 of the above configuration is installed in one or more temperature and humidity control exhaust ports 101 of the housing 100, and controls the temperature and humidity inside the housing 100 by discharging the air inside the housing 100 to the outside. is configured to perform At this time, the exhaust port dust filter 520 prevents the inflow of external rainwater or foreign substances when the exhaust fan unit 500 is not driven and external air flows in through the temperature and humidity control exhaust port 101 . do.

The suction air dehumidifying unit 600 is mounted on the housing air inlet 103 side inside the housing 100 to introduce external air from which moisture has been removed into the housing.

To this end, the intake air dehumidifying unit 600 controls the temperature and humidity that is heated above the relative reference temperature in the radiator 624 and the humidity is removed from the cooling condenser 622 after the external air is introduced into the external intake air chamber 611 . an intake air inlet chamber 610 forming a flow path for introducing air into the housing 100; an inlet dust-proof filter 601 installed on the inlet side of the intake air inlet chamber 610 to block the inflow of rainwater or foreign substances contained in external air; It is mounted inside the intake air inlet chamber 610 to remove moisture by cooling the introduced air, and heat the humidified air to a relative standard temperature or higher in the radiator 624 to control the temperature and humidity to be discharged. Temperature and humidity controller 620 to perform; and a temperature-humidity regulator fan 626 installed on the downstream side of the temperature-humidity controller 620 to provide an air flow force inside the intake air inlet chamber 610 by blowing the temperature-humidity control air into the housing 100 . ) is included.

And the intake air inlet chamber 610, the external air inlet chamber 611 is formed in the housing air inlet 103 to receive air through the inlet dust-proof filter 601; The temperature and humidity controller 620 is mounted and a condensed water outlet 614 is formed on the bottom surface to sequentially cool the air introduced through the external air inlet chamber 611 to discharge the moisture contained in the air as condensed water. After removing the temperature and humidity control chamber (613) formed on the downstream side of the external air inlet chamber (611) to communicate with the external air inlet chamber (611) to be discharged by heating to a relative reference temperature or more in the radiator (624); And the temperature and humidity controller fan 626 is installed to blow the temperature and humidity control air whose temperature and humidity are adjusted in the temperature and humidity control chamber 613 to the inside of the housing 100 so that the inlet side communicates with the temperature and humidity control chamber 613 and the exhaust port side is an exhaust chamber 615 formed on the downstream side of the temperature and humidity control chamber 613 to communicate with the housing 100; may be configured to include.

The temperature-humidity controller 620 is a Peltier device panel 621 that generates a Peltier effect of cooling the inlet side and heating the outlet side by receiving external power; A cooling condenser 622 attached to the cooling surface of the upstream side of the Peltier device panel 621 to generate moisture contained in the air as condensed water and discharge the removed moisture removal air by cooling the introduced external air; a moisture removal air temperature sensor 623 installed on the downstream side of the cooling condenser 622 to detect a temperature of the moisture removal air from which moisture has been removed from the cooling condenser 622; a radiator 624 attached to the heating surface of the downstream side of the Peltier device panel 621 to heat the temperature of the dehumidifying air to a relative reference temperature or higher; a temperature and humidity control air temperature sensor 625 that measures the heating temperature of the radiator 624 and the humidity of the temperature and humidity control air heated by the radiator 624 and outputs it to the monitoring and control unit 700; and a temperature/humidity regulator fan 626 installed in the exhaust chamber 615 to generate a negative pressure that causes a fluid flow that causes the sucked air to flow into the housing 100 .

In the above configuration, the cooling condenser 622 and the radiator 624 may be configured as a heat sink made of a metal member with high thermal conductivity, such as aluminum, in which a plurality of heat dissipation fins forming an air flow path are formed.

The temperature/humidity controller 620 having the above configuration may be configured in multiple stages inside the suction air dehumidifying unit 600 to perform multi-stage dehumidification and heating in order to increase the dehumidification efficiency of the sucked air.

The monitoring control unit 700 detects the external and internal temperature and humidity of the housing 100 from the outer housing temperature and humidity sensor unit 200 and the inner housing temperature and humidity sensor unit 300, and the heat dissipation relative of the radiator 624. The reference temperature is derived with the dew point temperature calculated by the external temperature and humidity and the reference humidity inside the housing 100, and after monitoring and controlling the temperature and humidity for each part of the intake air dehumidifying unit 600, the housing fan heater unit ( 400), the exhaust fan unit 500, and the intake air dehumidifying unit 600 are controlled to perform temperature and humidity control control inside the housing 100 according to the set reference temperature and humidity inside the housing 100.

3 is a flowchart showing the temperature and humidity control control inside the housing 100 by the monitoring and control unit 700 .

As shown in FIG. 3 , the temperature and humidity control control inside the housing 100 of the monitoring and control unit 700 sets the reference temperature and humidity inside the housing 100 for controlling the temperature and humidity inside the housing ( S100 ), the housing The temperature and humidity measurement (S200) of the outside and the inside of the housing 100, the internal humidity control of the housing 100 (S300), the internal temperature control of the housing 100 (S400) and suction air dehumidification (S500) are included. .

The reference temperature and reference humidity setting (S100) of the inside of the housing 100 during the temperature and humidity control control of the inside of the housing 100 of the monitoring and control unit 700 should be maintained so that the inside of the housing 100 does not fall below the dew point temperature. The temperature and humidity inside the housing 100 are set as the reference temperature and the reference humidity.

4 is a flowchart illustrating a procedure for setting the reference temperature and humidity inside the housing 100 by the monitoring and control unit 700 (S100).

As shown in Figure 4, the reference temperature and humidity setting (S100) inside the housing 100 by the monitoring and control unit 700 is the housing internal reference temperature and humidity setting (S110) in the electronic sign ON state (image display state), the electric sign board On (ON) -> off (OFF) state (image is not displayed in the image display state), the standard temperature and humidity setting inside the housing (S120), the electronic signage OFF -> ON state (the image is displayed) It has a procedure of setting the reference temperature and humidity inside the housing (S130) of the state in which the image is displayed in the state where the image is not displayed.

The reference temperature and humidity setting ( S110 ) inside the housing in the electronic signboard ON state is set differently depending on the case where the external temperature of the housing 100 is above zero or below zero.

When the external temperature of the housing 100 is zero, the internal reference temperature of the housing 100 is set 5 to 15° C., preferably, 10° C. higher than the external temperature of the housing 100, and the interior of the housing 100 When the temperature is 30°C or higher, the internal reference temperature of the housing 100 is set to 30°C.

When the external temperature of the housing 100 is below zero, when the internal temperature of the housing 100 is 5 to 15° C., preferably, 10° C. or more higher than the external temperature of the housing 100, the internal standard of the housing 100 The temperature is set at 5 to 15° C., preferably 10° C. above the temperature.

The standard temperature and humidity setting (S120) inside the housing in the ON->OFF state of the electronic signboard is performed when the external temperature is zero and below zero without driving the external air into the interior of the housing 100. is set differently depending on the case.

When the external temperature of the housing 100 is zero, the internal reference temperature of the housing 100 is set 5 to 15° C., preferably, 10° C. higher than the external temperature of the housing 100, and the interior of the housing 100 When the temperature is 30°C or higher, the internal reference temperature of the housing 100 is set to 30°C.

When the external temperature of the housing 100 is below zero and the internal temperature of the housing 100 is 5 to 15 ℃, preferably, 10 ℃ or more higher than the external temperature of the housing 100, the internal reference temperature of the housing 100 is 5 to 15°C than the temperature, preferably 10°C.

The reference temperature and humidity setting (S130) inside the housing in the OFF->ON state of the electronic signboard is in the OFF->ON state of the housing 100 as the internal temperature of the housing 100 rises. Accordingly, since humid air is naturally sucked, the temperature and humidity control air is introduced into the interior of the housing 100 through the internal intake air dehumidifying unit 600 30 minutes before the electric sign is turned on.

At this time, when the external temperature of the housing 100 is zero, the internal reference temperature of the housing 100 is set to 5 to 15 ℃, preferably, 10 ℃ higher than the external temperature of the housing 100, and the housing 100 When the internal temperature of the housing 100 is 30 ℃ or higher, the internal reference temperature of the housing 100 is set to 30 ℃.

When the external temperature of the housing 100 is below zero and the internal temperature of the housing 100 is 5 to 15 ℃, preferably, 10 ℃ or more higher than the external temperature of the housing 100, the internal reference temperature of the housing 100 is 5 to 15°C than the temperature, preferably 10°C.

As described above, when the external temperature of the housing 100 is zero in a state where the internal reference temperature of the housing 100 is set, the reference temperature and the reference humidity inside the housing 100 are 25°C to 35°C and 25%RH to 35%RH, preferably 30°C and 30%RH. And when the external temperature of the housing 100 is below zero, the reference temperature and reference humidity inside the housing 100 are 15°C to 25°C and 25%RH to 35%RH, preferably 20°C and 30%RH. can be set.

Among the temperature and humidity control control of the inside of the housing 100 of the monitoring control unit 700, the temperature and humidity measurement (S200) outside and inside the housing 100 is performed by the monitoring control unit 700 to control the temperature and humidity inside the housing 100. For the temperature and humidity outside the housing 100 and the temperature and humidity of a plurality of locations inside the housing 100 through the temperature and humidity sensors of the outer housing temperature and humidity sensor unit 200 and the inner housing temperature and humidity sensor unit 300 for measure

Thereafter, the monitoring and control unit 700 controls the humidity inside the housing ( S300 ), the inside of the housing by using the internal reference temperature and reference humidity of the housing 100 and the external temperature, external humidity, internal temperature and internal humidity of the housing 100 . Temperature control (S400) and intake air dehumidification (S500) control is performed.

The humidity control (S300) inside the housing by the monitoring and control unit 700 is performed when the measured humidity of a plurality of locations inside the housing 100 is equal to or higher than the internal reference humidity of the housing fan heater unit 400 and the exhaust fan unit 500. By driving the exhaust fans 510, the internal temperature of the housing 100 is raised, and the internal air of the housing 100 is discharged through the temperature and humidity control exhaust port 101 to control the humidity inside the housing 100. And when the measured humidity of a plurality of positions inside the housing 100 is less than the reference value, the housing 100 by stopping the driving of the exhaust fans 510 of the housing fan heater 400 and the exhaust fan 500 Control the humidity inside.

The temperature control (S400) inside the housing by the monitoring and control unit 700 drives the exhaust fans 510 of the exhaust fan unit 500 when the measured temperatures of a plurality of locations inside the housing 100 are equal to or higher than the internal reference temperature. to control the temperature inside the housing 100 by discharging the internal air of the housing 100 through the temperature and humidity control exhaust port 101 . And when the measured temperatures of a plurality of positions inside the housing 100 are within the internal reference temperature, the housing fan heater unit 400 is driven and the exhaust fans 510 of the exhaust fan unit 500 are set to be driven. The temperature inside the housing 100 is adjusted by increasing the temperature inside the housing 100 .

5 is a view showing a procedure for dehumidifying the intake air (S500) by the monitoring and control unit 700 .

The intake air dehumidification (S500) by the monitoring and control unit 700 includes the procedures of setting a relative reference temperature (S510) and controlling the power of the temperature and humidity controller (S520).

In the relative reference temperature setting (S510), the relative reference temperature is a temperature calculated with a dew point according to the temperature and humidity measured by the external housing temperature and humidity sensor unit 200 of the housing 100 and the reference humidity inside the housing 100. ) is the standard heat dissipation temperature. The reason for setting the relative reference temperature is to reduce the temperature deviation with the air inside the housing 100 when the cold condenser 622 is quickly dehumidified and the dehumidified cold air is heated by the radiator 624 and introduced into the housing 100. it is for

6 is a table showing an example of setting the relative reference temperature using the measured external temperature and humidity of the housing 100 when the reference temperature and reference humidity inside the housing 100 are set.

In area A of FIG. 6 , the reference temperature and reference humidity inside the housing 100 are set to 30° C. and 30% RH, so the dew point inside the housing 100 is 10.53° C., and the external temperature and humidity of the housing 100 is 30 It represents setting the relative reference temperature for controlling the temperature and humidity of the air sucked into the housing 100 through the temperature-humidity controller 620 when the dew point outside the housing 100 is 26.17°C as ℃ and 80%RH. .

In this case, a change in internal temperature and humidity and a large amount of moisture are introduced due to the difference in humidity between the external air flowing into the housing 100 and the internal humidity of the housing 100 to cause corrosion. In order to prevent this, the air sucked into the housing 100 from the radiator 624 of the temperature/humidity controller 620 must be heated to 30%RH and 48.22°C or higher, which corresponds to a dew point of 26.17°C. At this time, The 48 ℃ becomes the relative reference temperature for the intake air dehumidification (S500) procedure.

In area B of FIG. 6 , the reference temperature and reference humidity inside the housing 100 are set to 20° C. and 30% RH, so the dew point inside the housing 100 is 1.88° C., and the external temperature and humidity of the housing 100 are 6 It represents setting the relative reference temperature for controlling the temperature and humidity of the air sucked into the housing 100 through the temperature-humidity controller 620 when the dew point outside the housing 100 is 5.50° C. and 96.60% RH. .

In this case, a change in internal temperature and humidity and a large amount of moisture are introduced due to the difference in humidity between the external air flowing into the housing 100 and the internal humidity of the housing 100 to cause corrosion. In order to prevent this, the air sucked into the housing 100 from the radiator 624 of the temperature/humidity controller 620 must be heated to 30%RH and 24°C (24.18°C) or more, which corresponds to a dew point of 5.5°C, at this time, The 24 ℃ becomes the relative reference temperature for the intake air dehumidification (S500) procedure.

After the relative reference temperature for performing the intake air dehumidification (S500) is determined by the process of FIG. 6 described above, the monitoring control unit 700 controls the power supplied from the power supply unit 800 to the temperature/humidity controller 620 to control the temperature and humidity. In the cooling condenser 622 of the regulator 620, the temperature of the introduced external air is lowered, the moisture contained in the external air is condensed and removed by discharging it through the condensate outlet 614, and the moisture-removed air is again a radiator After being heated to a relative reference temperature while passing through (624), suction air dehumidifying (S500) to be sucked into the housing 100 is performed.

The electric signboard of an embodiment of the present invention having the above configuration effectively removes moisture contained in the air flowing into the electric signboard, and prevents moisture contained in the air from condensing inside the housing 100, thereby preventing the electric signboard ( 1) It is possible to prevent the occurrence of fire due to corrosion and corrosion of the electric and electronic devices and the housing 100 inside.

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

1: electric billboard
100: housing
101: temperature and humidity control exhaust port
103: housing air inlet
200: external housing temperature and humidity sensor unit
300: inner housing temperature and humidity sensor part (TH 1-1 ~ TH 1-N)
400: housing fan heater unit
500: exhaust fan unit
510: exhaust fan
520: exhaust port dust filter
600: intake air dehumidification unit
610: intake air inlet chamber
601: inlet dust-proof filter
611: external air inlet chamber
613: temperature and humidity control chamber
614: condensate outlet
615: exhaust chamber
620: temperature and humidity controller
621: Peltier device panel
622: refrigeration condenser
623: moisture removal air temperature sensor
624: radiator
625: temperature and humidity control air temperature sensor
626: temperature and humidity controller fan
700: monitoring control unit
800: power unit

Claims (5)

A housing in which a display panel composed of a plurality of LED modules is mounted on the outer surface, a local controller in charge of the video editing area for each part, and a plurality of LED drivers that receive the video signal of the local controller and control the operation of the LED module are built-in In the electric sign board comprising (100) to display an image through the display panel,
an external housing temperature-humidity sensor unit 200 including one or more temperature-humidity sensors for detecting external temperature and humidity of the housing 100;
an inner housing temperature and humidity sensor unit 300 including one or more temperature and humidity sensors for detecting the internal temperature and humidity of the housing 100;
a housing fan heater unit 400 that heats the air inside the housing 100 to increase the temperature inside the housing 100;
an exhaust fan unit (500) installed in the temperature and humidity control exhaust port (101) of the housing (100) to discharge the internal air of the housing (100);
It is configured to include a moisture removal air temperature sensor 623 and a temperature and humidity control air temperature sensor 625 and is mounted on the housing air inlet 103 side of the housing 100 to remove moisture into the housing 100 and an intake air dehumidifying unit 600 for introducing temperature-humidity control air, which is external air heated to have a target temperature; and
The external and internal temperature and humidity of the housing 100 are detected from the external housing temperature and humidity sensor part 200 and the internal housing temperature and humidity sensor part 300, and the moisture removal air temperature sensor 623 and the temperature and humidity control air temperature After detecting the temperature and humidity for each part of the intake air dehumidifying unit 600 using a sensor 625 , the housing fan heater unit 400 and the exhaust fan unit 500 are adjusted to control the temperature and humidity inside the housing 100 . ) and a monitoring control unit 700 that controls the intake air dehumidifying unit 600 to control temperature and humidity inside the housing 100;
The suction air dehumidifying unit 600,
an intake air inlet chamber 610 that forms a flow path through which external air is introduced, moisture is removed, and temperature-humidity control air heated to a relative reference temperature or higher is introduced into the housing 100;
an inlet dust-proof filter 601 installed on the inlet side of the intake air inlet chamber 610 to block the inflow of rainwater or foreign substances contained in external air;
It is mounted inside the intake air inlet chamber 610 to remove moisture by cooling the introduced air, and performs temperature and humidity control by discharging the temperature and humidity control air heated to the relative reference temperature or higher of the moisture-controlled air. a temperature and humidity controller 620; and
A temperature/humidity regulator fan (626) installed on the downstream side of the temperature and humidity controller (620) to provide an air flow force inside the intake air inlet chamber (610) by blowing the temperature and humidity control air into the housing (100). It consists of
The temperature and humidity controller 620 is a Peltier device panel 621 that generates a Peltier effect of cooling the inlet side and heating the outlet side by receiving external power; A cooling condenser 622 attached to the cooling surface of the upstream side of the Peltier device panel 621 to generate moisture contained in the air as condensed water and discharge the removed moisture removal air by cooling the introduced external air; a moisture removal air temperature sensor 623 installed on the downstream side of the cooling condenser 622 to detect a temperature of the moisture removal air from which moisture has been removed from the cooling condenser 622; a radiator 624 attached to the heating surface of the downstream side of the Peltier device panel 621 to heat the temperature of the dehumidifying air to a relative reference temperature or higher; a temperature and humidity control air temperature sensor 625 for measuring the heating temperature of the radiator 624 and the humidity of the temperature and humidity control air heated by the radiator 624 and outputting it to the monitoring control unit 700; and a temperature/humidity regulator fan 626 installed in the exhaust chamber 615 to generate a negative pressure that causes a fluid flow that causes the sucked air to flow into the housing 100.
The cooling condenser (622) and the radiator (624) is an electric sign with an internal corrosion and fire prevention function, characterized in that a plurality of heat radiation fins forming an air flow path are formed. According to claim 1, wherein the outer housing temperature and humidity sensor unit 200 and the inner housing temperature and humidity sensor unit 300,
It includes a temperature sensor and a humidity sensor, the outer housing temperature and humidity sensor unit 200 is installed at least one outside of the housing 100, the inner housing temperature and humidity sensor unit 300 is inside the housing 100 One or more installed, the outer housing temperature and humidity sensor unit 200 detects the external temperature and humidity of the housing 100 and then transmits it to the monitoring control unit 700, and the inner housing temperature and humidity sensor unit 300 is the housing ( 100) after detecting the internal temperature and humidity of the electronic signage having an internal corrosion and fire prevention function, characterized in that configured to be transmitted to the monitoring and control unit (700). According to claim 1, wherein the housing fan heater unit 400,
At least one is installed inside the housing 100 and driven according to the temperature and humidity control of the monitoring and control unit 700 to heat and circulate the air inside the housing 100 to increase the internal temperature of the housing 100 . An electric billboard with internal corrosion and fire prevention functions, characterized in that it is configured. According to claim 1, wherein the exhaust fan unit 500,
The air in the housing 100 includes an exhaust fan 510 and exhaust dust-proof filters 520 installed for each temperature and humidity control exhaust port 101 and is installed at one or more temperature and humidity control exhaust ports 101 of the housing 100. An electric sign with an internal corrosion and fire prevention function, characterized in that it is configured to control the temperature and humidity inside the housing 100 by discharging the to the outside. delete

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