LED lamp circuit board heat dissipation device based on principle of thermal expansion and cold contraction

Abstract

The invention relates to the technical field of LED lamps, and discloses an LED lamp circuit board heat dissipation equipment based on a principle of thermal expansion and cold contraction. The LED lamp circuit board heat dissipation device comprises a lamp body, wherein a bulb mounting head is arranged in the lamp body; the outer side of the bulb mounting head is movably connected with a heat conduction rib; the end, away from the bulb mounting head, of the heat conduction rib is movably connected with a heat sensing rib; and a heat dissipation fan is movably installed in a circuit board body, the outer side of the heat dissipation fan is movably connected with a connecting rod, and the outer side of a connecting spring is movably connected with a mounting bearing. According to the LED lamp circuit board heat dissipation device based on the principle of thermal expansion and cold contraction, a trigger switch abuts against the LED lamp circuit board heat dissipation equipment, the device is started, sub-fans are installed on mounting rods, the mounting rods are installed on the two sides of the mounting bearing and can move along with rotation of the mounting bearing, the sub-fanson the mounting rods can also achieve small-amplitude constant-speed reciprocating motion, and then the purpose of uniformly dissipating heat in the circuit board body and the lamp body is achieved.

Description

technical field [0001] The invention relates to the technical field of LED lamps, in particular to an LED lamp circuit board cooling device based on the principle of thermal expansion and cold contraction. Background technique [0002] The LED lamp is an electroluminescent semiconductor material chip, which is cured on the bracket with silver glue or white glue, and then connected to the chip and the circuit board with silver or gold wires, and sealed with epoxy resin around it to protect the inner core wire. Function, the shell is finally installed, so the shock resistance of the LED lamp is good. [0003] As we all know, the lifespan of LED lights can be as long as 100,000 hours, and the lifespan under normal use can even exceed the lifespan of a person. In addition to having a long service life, LEDs also have the advantage of saving electricity. Ordinary LED lamps can provide continuous lighting for dozens of hours or even more than one hundred hours, which has obvious...

AI Technical Summary

Problems solved by technology

However, LED light sources are different from ordinary light sources. They need to drive circuit boards, and the heating problem of the drive circuit boards will seriously affect the service life of the entire LED lamp. Therefore, the application of LED light sources to lamps must solve the heat dissipation problem of the drive circuit.

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