Technology: LED Street Lamp Thermal Magnetic Radiator Principle

- Aug 12, 2019-

First, the working principle of thermonuclear radiator

When an electric current passes through a wire, a spiral magnetic field is formed around the wire. Similarly, when the heat flow passes through the bar-like thermomagneton material, the spiral thermal field will also form around the bar-like thermomagneton material. Under the action of the spiral thermal field, hot gas flow will form, which is called the hot field airflow. Hot air and cold air exchange actively to achieve the purpose of heat dissipation. Therefore, thermal-magneton radiators belong to the category of dynamic heat dissipation.

Second, the characteristics of thermal magnetic radiator

Contrast with traditional radiators:

LED radiator application of thermal magnetic heat dissipation material/magnetic cold heat dissipation material, can realize the LED street lamp 100W light source radiator weight is less than 2 kg, reduce the metal weight 5-10 times, temperature rise is less than 20 degrees, so that the LED becomes a real low temperature, long life, low cost, affordable new light source.

Simple material synthesis:

Thermal-magneton materials can be made by adding a small amount of thermal-magneton additive to copper, aluminum and other heat dissipation materials. Because the proportion of the main components in the additive is close to that of pure aluminum, and the melting point is lower than 400℃, the synthesis of the material is very simple.

Led street lamp dynamic heat dissipation:

Magnetotron radiators belong to the category of dynamic heat dissipation and have very strong exchange capacity with cold air. Heat dissipation effect than the ordinary copper, aluminum radiator effect is much better

Adopt strip heat dissipation:

After the addition of thermal-magneton material in the radiator, the thermal field airflow will form on the surface of the radiator, which will move horizontally with the direction of thermal propagation. If we design many strips parallel to the direction of thermal propagation on the radiator, spiral thermal field airflow will be generated around the strip on each strip.

This increases the area and capacity of heat exchange between the hot field and the cold air. Therefore, we recommend that the thermonuclear radiator be designed in strip shape.

Phonon features:

The vast majority of thermal-magneton materials have phonon characteristics at the same time. In the thermal-magneton radiator the phonon characteristic radiation also increases the heat dissipation effect.

Lamp surface treatment:

The surface treatment of thermal-magneton radiators can also be used by baking paint or electrostatic spraying process. Thermal-magnetic son radiator is to rely on helical hot field airflow to come loose heat, just like baking paint and electrostatic spray plastic will not affect the magnetic field, baking paint and electrostatic spray plastic will not affect the generation and flow of thermal field, but can use baking paint and electrostatic spray plastic emission rate high characteristics to improve the heat dissipation effect. For example, when the temperature of the thermal-magneton radiator is 45℃, the temperature of the radiator can be reduced to 41℃ after the surface treatment with baking paint and electrostatic spraying.

Light efficiency and power stability:

Since the chip temperature will go through a process from low to high after each lighting of LED, the luminous efficiency of LED chip decreases with the rise of chip temperature, and the working voltage of LED chip also decreases with the rise of chip temperature (power decrease). Therefore, the light efficiency and power of LED after each lighting decrease with the increase of temperature. The temperature rise of ordinary aluminum radiator is very high, and the light efficiency and power of LED decrease a lot, while the temperature rise of thermonuclear radiator is very low, so the light efficiency and power are relatively stable.

LED road light decay small, long life:

The temperature rise of thermonuclear radiator is generally controlled at 5-15℃, which is 25-30℃ lower than that of ordinary aluminum radiator. Therefore, LED light decay is very small, greatly extending the service life of LED light source.