소개
With the change of seasons, the northern hemisphere has slowly entered spring. This is a rainy season. In the season with more rainy days, the 옥외 발광 다이오드 표시 스크린 is still working seriously outside.
So, if it rains heavily, can the outdoor LED display screen work normally? You will find the answer by reading the article.
1. What is the direct impact of heavy rain on outdoor LED display screen
The harm of heavy rain to outdoor LED display screens is really a lot. Let’s talk about those real problems and risks.
1). Physical impact
When heavy rain comes, the rain is like countless small brushes, brushing the display screen constantly. Over time, the waterproof layer and protective film on the surface of the display screen are almost worn out, and the waterproof performance is greatly reduced.
Moreover, there are all kinds of dirt in the rain, which will enter the gap of the display screen as soon as it is washed, which is particularly troublesome to clean up and affects the appearance.
Heavy rain is usually accompanied by strong winds. When the wind blows, the display screen is like a drunk person, staggering. If it is not fixed firmly enough, it may fall down and break into pieces. Even if it does not fall down, the wind will carry rain everywhere, increasing the risk of water seepage.
2). Rainwater may penetrate internal components
There are seams between the cabinets and modules of the outdoor LED display, as well as those where the components are connected. These seams are like secret passages for rainwater.
If they are not sealed well, rainwater will whiz in. Once they touch the circuit boards and components inside, it will be bad. If they are damp and corroded, the display will go out of service.
When installing the display, if it is not installed properly or the installation surface is uneven, gaps will be left. These gaps are like back doors for rainwater to enter at will. Once rainwater enters, it will run around everywhere and damage the circuit boards and components.
After the outdoor LED display has been used for a long time, the waterproof glue and sealing strips will age, become hard, and crack easily. In this way, rainwater will seep in more easily.
Aging components are like accomplices of water seepage, making the display more prone to problems.
3). Electrical safety
Rainwater is conductive. Once it seeps into the display screen and touches the components and wires on the circuit board, it may cause a short circuit.
Once a short circuit occurs, the heat and arc will be like a bomb, burning the components on the circuit board in an instant. If it is serious, it may also cause a fire, which is terrible.
If there is a problem with the grounding system of the outdoor LED display screen, such as poor grounding or broken grounding wire, once the rainwater seeps in, it may leak electricity.
Leakage is fatal. If someone accidentally touches the leaking display screen or surrounding equipment, he may be electrocuted or even endanger his life.
So, heavy rain can cause great harm to outdoor LED display screens. Not only may the display screen be damaged or scrapped, but it may also cause safety accidents such as fire and electric shock.
Therefore, we must pay special attention to this issue, strengthen the waterproof design of the display screen, conduct regular inspections and maintenance, strengthen the fixed structure, and establish an emergency response mechanism to ensure that the display screen can operate safely and stably in heavy rain weather.
2. How is the waterproof design of the outdoor LED display screen?
1). The main components of outdoor LED display
Outdoor LED displays, to put it bluntly, are made up of a bunch of high-tech gadgets. Let’s talk about its key components first:
- LED 램프 구슬:
These small lamp beads are the bright spots on the display. They can create all kinds of cool images and videos through the combination of different colors. Just like the colored glass balls we played with when we were young, but this is an advanced version.
- 드라이브 회로:
This is like the “heart” of the display, providing stable current and voltage to the LED lamp beads so that they can emit light normally. Without this, the lamp beads will not light up.
- 제어 시스템:
This is like the “brain” of the display, responsible for receiving and processing external signals, and then telling the lamp beads how to light up and how to change colors. In this way, we can see a smooth picture.
Casing: This is like the “armor” of the display, protecting the components inside from external damage. It must also be waterproof and dustproof, otherwise the display will be broken when it rains.
2). The importance of waterproof design
Did you know? Outdoor LED display screens have to be exposed to wind and rain every day. If the waterproof design is not good, water will seep in when it rains, which will be troublesome.
The circuit will short-circuit, the components will be damaged, and the display will not work properly. Therefore, waterproof design is the lifeline for outdoor LED display screens!
The waterproof level sounds very high-end, but it is actually a standard that tells us how much water this display screen can resist. For example, IP65 means that dust cannot enter the display screen, and rain cannot splash into it, even if it rains heavily. IP67 is even more powerful.
It says that even if the display screen is soaked in water for a period of time, it will be fine. This is a blessing for those places installed by the sea and river!
So how to waterproof? In fact, it is quite simple: just use some waterproof materials and technologies. For example:
- Sealing rubber ring:
This is like the “waterproof ring” of the display screen, installed at the seams and interfaces to prevent water from seeping in. It must be elastic and durable; otherwise, it will loosen when it rains, and that’s it.
- Waterproof coating:
This is like the “waterproof coat” of the display screen, applied on the outer shell to form a protective film. This film must have good weather resistance and strong adhesion, otherwise it will fall off when it rains, and then it will be useless.
There are some other waterproof tips:
- Waterproof interface design:
Power interface and signal interface are the most likely places for water to enter. Therefore, waterproof gaskets and waterproof tapes should be used to seal the interface tightly so that water cannot enter.
- Leakage design:
What if water seeps in? Don’t worry, there are leaks at the bottom or side of the display. These openings are like drains, which quickly drain water and prevent water from damaging the display.
- 모듈형 디자인:
This design is very smart! It divides the display into many small modules, and each module can be waterproofed independently. In this way, if any module is broken, just replace it without replacing the entire display, which is both cost-saving and convenient.
In general, the waterproof design of outdoor LED displays is a big deal! You have to choose the right materials and use good technology to ensure that the display can work properly in all kinds of bad weather.
3. What should we pay attention to if we want to use outdoor LED display screens in heavy rain?
If we want to use outdoor LED display screens in heavy rain, we need to pay attention to many things. Here are some key points that we need to keep in mind:
1). Ensure that the power supply is well grounded:
There is thunder and lightning on heavy rain days, and the voltage is so high that the display screen can be struck by lightning if we are not careful. Therefore, we must ensure that the power supply grounding of the display screen is well done.
We must use the common ground wire structure to connect the working ground, power ground, and lightning protection ground together to form a complete grounding system.
We must also regularly check whether the grounding wire is firm and whether the grounding resistance is qualified. If the grounding is not good, it will be troublesome. Maybe one day, the thunder god will come to cause trouble.
2). Install lightning protection facilities:
In places with a lot of lightning or in the wild where the building’s lightning protection is not done well, we must install lightning protection facilities on the input side of the display screen, such as lightning arresters, lightning rods, etc.
These things can absorb the energy of lightning and lead it to the ground so that the display screen is safe.
It is best to ask the customer service of the display manufacturer to see if they have a professional lightning protection plan. After installation, you must check regularly to ensure that the lightning protection facilities are working properly.
3). Keep the working environment of the display dry:
During heavy rain, the humidity is heavy, and the display is easy to get water. We have to use a power supply with three-proof treatment: moisture-proof, mildew-proof, and fog-proof so that the power supply can be stable in a wet environment.
You must also regularly check the outer shell and inside of the display to see if there is any water accumulation, dust, etc., and clean them up quickly.
For places such as interfaces and connecting cables that are prone to moisture, you can apply some waterproof glue or wrap them with a waterproof cover.
4). Check the waterproof performance of the display:
Before using the display, you must carefully check its waterproof performance. The outer shell must be sealed tightly, and the waterproof level must reach IP65 or higher.
At the joints and interfaces, you must use good sealants or rubber pads to fill the gaps to prevent rainwater from seeping in. If you find that the waterproofing is not good or there is a leak, you must repair or replace it quickly.
5). Avoid playing high-brightness images for a long time:
The light is dim on rainy days, but we should not always play those all-white, all-red, all-green, and all-blue high-명도 images. These images will overload the power supply and generate a lot of heat, and the power supply is easy to break and may even cause a fire.
We have to reasonably adjust the brightness and color of the picture and don’t always use high-brightness pictures. We also have to regularly check the heat dissipation of the power supply to ensure that it works within the normal temperature range.
6). Regular inspection and maintenance:
Before the rainy season comes, we have to do a comprehensive inspection and maintenance of the display. Clear the accumulated water, sweep the dust, and see if there are any damaged or loose parts. Repair what needs to be repaired and replace what needs to be replaced.
We also have to regularly test the function of the display to ensure that it works normally. We have to prepare some vulnerable parts and key components, such as power supplies, driver boards, lamp beads, etc., just in case.
If you find any abnormal phenomena, such as flickering pictures, wrong colors, uneven brightness, etc., you have to deal with them quickly.
7). Reasonable use of the display screen:
If the display screen is not necessary to use during heavy rain, we should temporarily stop using it and turn off the power. If it is necessary to use it, we must always pay attention to weather changes.
Once there is thunder and lightning or strong winds, turn off the display screen and turn off the power. Safety first. We also have to make an emergency plan so that we know what to do if something happens.
8). The drainage system is unobstructed:
There must be an effective drainage system around the display screen, such as drainage ditches and rainwater wells so that rainwater does not accumulate and flow into the display screen. We must regularly check whether the drainage system is unobstructed and clear away any blockages.
If there is a problem with the drainage system, such as poor drainage or water leakage, it must be repaired immediately. You can also put some waterproof baffles or sandbags around the display screen to block rainwater.
9). Timely response to water ingress:
If the display screen is flooded, we must quickly turn off the power and find maintenance personnel to deal with it.
Don’t force it to start; otherwise, the damage will be greater. When the maintenance personnel come, we can move the display screen to a dry and ventilated place to reduce the corrosion and damage of moisture to the internal components.
You can also use a desiccant or hair dryer to assist in drying, but don’t use a high-temperature heat source for baking directly. Otherwise, the internal components will be damaged.
10). Keep the power supply stable:
The power supply may be unstable during heavy rain, and voltage fluctuations and power outages are possible. We have to use a stable power supply, and we have to prepare some backup power supply or UPS.
The power lines and connectors must also be checked regularly to see if they are reliable and do not cause unstable or interrupted power supply due to aging of the lines or loose connectors.
If it is an important display screen location, you can also consider setting up a dual-circuit power supply system or a backup generator set, which is safer. If you find a problem with the power supply, you have to deal with it quickly.
In short, you have to be careful when using outdoor LED displays on heavy rain days, and you have to consider all aspects to ensure that the display screen works safely and stably.
4. What do you need to check on the outdoor LED display screen after a heavy rain?
1). Appearance and structure inspection
1.1). Check the display housing:
We need to take a close look at the display housing to see if there are any cracks, deformations, or damage. Especially the joints and screw holes. Feel them to see if there is any water seepage or leakage.
Knock on the housing to hear if the sound is normal and if there is any water accumulation or loose parts inside. Make sure the housing is intact and well-sealed.
1.2). Check the fixed structure:
Next, we need to see if the steel structure, bracket, and bolts of the display are firm. Take a wrench and tighten each bolt to see if it is tight.
Then look at the connection between the bracket and the steel structure to see if it is welded firmly and if there are any cracks or breaks. Make sure the entire structure is stable and does not shake when the wind blows.
2). Waterproof performance inspection
2.1). Check the waterproof rubber ring and sealing strip:
The waterproof rubber ring and sealing strip are the key. Check them carefully to see if they are aged, deformed or damaged.
Touch them to see if they are elastic and tight. Make sure they are tightly attached to prevent rain from getting in. If you find any problems, replace them with new ones or repair them immediately.
2.2). Check for internal moisture:
Safety first, we have to open the display box and look inside. Check if there is any moisture, water droplets or water vapor. If there is, use a desiccant or a hair dryer to make it dry.
Also check if the circuit board, connecting wires and other key components are damaged or corroded due to moisture. Make sure everything is in good condition so that the display can work properly.
3). Electrical system inspection
3.1). Check the power supply line:
The power supply line must be carefully checked to see if there is any damage, exposure or water seepage. Use a multimeter to measure the voltage and current to see if it is normal.
Then take a look at the power socket and plug to see if they are clean, rusty, and in good contact. Electrical problems cannot be taken lightly, and everything must be safe.
3.2). Check the air switch and fuse:
The air switch and fuse should also be checked to see if they are short-circuited or tripped due to heavy rain. Use a multimeter to measure the resistance value to see if it is normal.
If you find a problem, replace it with a new one or repair it immediately. The electrical system must be stable so that the display can work normally.
3.3). Check the control system:
Turn on the display and see how the control system works. Is the picture clear? Is there any flickering, screen distortion, or color distortion? Use professional software to test the function to see if it is normal.
If you find a problem, repair it or replace the parts immediately. The control system is the brain of the display, and you must ensure that it is smart.
4). Display effect inspection
4.1). Check the picture quality:
Turn on the display and play the test picture to see how the picture quality is. You must check the color, brightness, and contrast to see if they meet the design requirements.
If you find that the picture flickers, screen distortion or has lines, adjust or repair it immediately. You must ensure that the picture is beautiful and comfortable to watch.
4.2). Check brightness and uniformity:
Use a brightness meter to measure the brightness of the display and see if it is normal. Then, check if the brightness is uneven and if there are any dark areas.
If you find any problems, adjust the settings or repair them immediately. Make sure the display is bright, and the brightness is uniform.
5). Check the cooling system
5.1). Check the cooling equipment:
The cooling equipment must be carefully checked to see if the fan and heat sink are in good condition. Touch them with your hands to feel the temperature and wind speed.
Make sure they can dissipate heat well, and don’t let the display get damaged by heat. Clean up the dust and debris to keep the cooling equipment clean.
5.2). Check the ventilation:
Check the ventilation around the display and see if the air is flowing. Check if there are any obstructions that affect the heat dissipation.
If the ventilation is not good, adjust the installation position or add some ventilation equipment immediately. Make sure the display is cooled quickly and not heated.
6.) Drainage system check
6.1). Check the drainage ditch and rainwater well:
The drainage ditch and rainwater well should also be carefully checked to see if they are unobstructed.
Clean up the debris and silt inside to let the water flow away smoothly. Then check the drainage situation to see if the rainwater can be effectively removed. Make sure the display is dry and not flooded.
6.2). Check the waterproof baffle or sandbag:
If waterproof baffles or sandbags are set up, you should also take a closer look at them. Check if the placement is correct and whether they can play a protective role.
If you find any problems, change or adjust them quickly. Make sure the protective measures are firm and don’t let the rain wash onto the display.
결론
In summary, the normal use of outdoor LED display screens in heavy rain is a problem involving many factors. Good waterproof design is the basis for ensuring the stable operation of equipment in heavy rain, and technological progress provides the possibility of continuously improving waterproof performance.
At the same time, special protective measures and the joint efforts of users and maintenance personnel are also key factors in ensuring equipment safety and extending service life.
마지막으로 LED 디스플레이에 대해 더 알고 싶으시다면, 우리에게 연락해주세요.
