As an efficient road safety device,
solar road studs provide important protection for road lighting at night and in bad weather conditions with their unique design and solar power supply technology. In addition to their functionality, the durability and reliability of solar road studs depend largely on the materials they are made of. This article will explore in detail the different components of solar road studs and their materials to better understand the performance and advantages of this device in daily use.
1. Solar Panel Materials
The core of solar road studs is the solar panel, which is responsible for converting solar energy into electricity to supply the LED lights of the road studs. This part of the material determines the energy conversion efficiency and durability of the road studs.
Monocrystalline or polycrystalline silicon:
Solar road stud lights are commonly made of photovoltaic panels made of monocrystalline or polycrystalline silicon. Monocrystalline silicon has high energy conversion efficiency and good durability, while polycrystalline silicon is more economical and often used in products with high cost-effectiveness requirements.
Surface protection materials: In order to protect solar panels from external environments such as rain and dust, a layer of transparent polycarbonate (PC) or tempered glass is usually covered on the surface of the panel. These materials have high transparency, scratch resistance and UV resistance, ensuring that solar panels can work efficiently for a long time.
2. Shell material
The shell of
solar-powered road studs plays a protective and pressure-resistant role and needs to remain intact under repeated vehicle rolling and various bad weather conditions. Therefore, the choice of shell material is crucial.
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Aluminum alloy: Aluminum alloy is one of the commonly used materials in the shell of solar road studs, especially for high-intensity road environments. Aluminum alloy not only has excellent pressure resistance and can withstand the rolling of heavy vehicles, but also has strong corrosion resistance and adapts to long-term exposure to moisture and salt spray environments. In addition, aluminum alloy is light and easy to install.
Plastic (polycarbonate or ABS plastic): Another common shell material is high-strength plastic, especially polycarbonate (PC) or ABS plastic. Polycarbonate has excellent impact resistance and weather resistance, and can withstand extreme environments such as high and low temperatures. ABS plastic also has good toughness and strength, and is often used in occasions with low weight requirements.
3. Energy storage battery material
Energy storage batteries are an important component of solar road studs that store solar energy absorbed during the day and release electricity at night. The quality of the battery directly affects the service life and stability of the road stud.
Lithium battery: The most common energy storage battery in solar
cat eye is the lithium battery. Lithium battery has high energy density, long life and fast charging speed, which is very suitable for road studs that need to accumulate enough energy in a short time. The service life of lithium battery can generally reach several years, and it has excellent high and low temperature resistance.
NiMH battery: NiMH battery is also a common solar road stud energy storage battery. Although its energy density is not as high as that of lithium battery, it has high safety and good cycle life, and is often used in cost-sensitive projects.
4. LED lamp material
The light source of solar road studs is usually an LED lamp, which is known for its low energy consumption and high brightness. The material of LED lamp not only affects its brightness but also determines its durability and energy consumption performance.
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Semiconductor material (gallium nitride, gallium phosphide): The core of an LED lamp is a light-emitting chip made of semiconductor material. Common materials are gallium nitride (GaN) and gallium phosphide (GaP). These materials can efficiently convert electrical energy into light energy and have a long service life, usually up to tens of thousands of hours.
Transparent packaging material: In order to protect the LED lamp chip from the external environment, the packaging material is usually epoxy resin or silicone resin. These materials are highly transparent and can ensure the brightness of the LED lamp. They also have excellent weather resistance and are waterproof and dustproof.
5. Internal structural materials
The internal structure of the solar road stud includes electronic components and circuit boards, which together constitute the control system of the road stud and are responsible for energy management and automatic lighting functions.
PCB circuit board: The circuit board inside the
road stud usually uses a glass fiber reinforced printed circuit board (PCB). This material has good conductivity, heat resistance and mechanical strength, and can work stably for a long time in harsh environments.
Sealing material: In order to protect the internal electronic components, the internal structure of the solar road stud is often encapsulated with sealing materials to prevent water vapor and dust from entering the interior. Commonly used sealing materials include silicone and epoxy resin, which have excellent waterproof and moisture-proof properties.
6. Reflective sheet material
In order to effectively provide road instructions in the absence of light, many solar road studs have built-in reflectors to help enhance visibility.
PMMA reflective material: The reflective sheet of road studs is usually made of polymethyl methacrylate (PMMA), which is a plexiglass material that can reflect light from vehicle headlights and increase the visibility of road studs.
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The constituent materials of solar road studs determine their durability, energy efficiency, and safety performance. Its core solar panels, energy storage batteries, LED lights, and sturdy shell materials work together to ensure that the road studs can work for a long time in various severe weather and traffic environments. At the same time, the choice of different materials enables solar road studs to adapt to different application scenarios, from highways to rural roads, and even low-speed traffic environments such as parking lots and sidewalks. Through reasonable material matching, solar road studs can not only improve road safety but also have the advantages of environmental protection and energy saving, becoming an important part of modern transportation facilities.
