High power LED lamp

Abstract

The invention discloses a high-power LED lamp, which comprises an LED and a power cord. The invention also comprises a lamp shell, a waterproof device, a temperature controller, a heat sink and a circuit board; the light shell the heat sink adopt the same material and are arranged in an integrative way; the circuit board is fixed in the lamp shell; the heat sink is fixed at the exterior of the lamp shell; the temperature controller is fixed on the heat sink, and is arranged in the lamp shell to be connected with the LED via the circuit board to determine excessively high temperature and shut off the power supply to the LED lamp-emitting diode in such case; the two input terminals of the temperature controller are respectively connected with a first diode lead and a first cathode lead of the power line; the two output ends of the temperature controller are respectively connected with a second diode lead and a second cathode lead of the circuit board; the temperature controller turns onand off the power supply according to the temperature in the LED lamp to control the LED lamp.

Description

technical field [0001] The invention relates to the field of lighting, in particular to a high-power LED lamp. Background technique [0002] BACKGROUND OF THE INVENTION With the development of semiconductor lighting technology, LEDs gradually develop from traditional low power to single high power and integrated high power. However, LEDs can only work normally at a certain temperature. The higher the power of the LED, the greater the heat generation, and the heat generated by a single high-power LED and an integrated high-power LED is very concentrated. At present, the heat sink made of metal materials with good heat dissipation performance such as aluminum and copper is generally used. Its heat dissipation capacity is obviously insufficient, and increasing the volume and area can no longer significantly reduce the thermal resistance, which makes the heat energy emitted by the LED unable to be conducted and released in time. The higher the temperature of the LED, the more se...

AI Technical Summary

Problems solved by technology

The higher the power of the LED, the greater the heat generation, and the heat generated by a single high-power LED and an integrated high-power LED is very concentrated. At present, the heat sink made of metal materials with good heat dissipation performance such as aluminum and copper is generally used. Its heat dissipation capacity is obviously insufficient, and increasing the volume and area can no longer significantly reduce the thermal resistance, which makes the heat energy emitted by the LED unable to be conducted and released in time. The higher the temperature of the LED, the more seriously the LED's luminescence will be affected by the temperature. If the temperature inside the LED lamp is too high, it will cause danger, burn the circuit board or other electronic components, and seriously affect the work of the high-power LED lamp.

Images