Thermostatic control led thermal module

Abstract

A thermostatic control LED thermal module includes at least one fan, a heat dissipation unit, a sensing unit and a controller. One side of the heat dissipation unit is mated with the fan, while the other side of the heat dissipation unit is attached to an LED unit. The sensing unit is electrically connected to the LED unit for detecting the temperature of the LED unit and generating a sensing signal. The controller is electrically connected to the fan and the sensing unit. According to the received sensing signal, the controller operates and processes to generate a control signal to control rotational speed of the fan so as to achieve an excellent heat dissipation effect.

1 . A thermostatic control LED thermal module comprising:
 at least one fan;   a heat dissipation unit having a heat absorption section and a heat dissipation section, the heat absorption section being attached to an LED unit, the heat dissipation section being mated with the fan;   a sensing unit disposed on the heat dissipation section and electrically connected to the LED unit for detecting the temperature of the LED unit and generating a sensing signal; and   a controller disposed on one side of the heat dissipation unit and electrically connected to the fan and the sensing unit, whereby according to received sensing signal, the controller operates and processes to generate a control signal to control rotational speed of the fan.   
     
     
         2 . The thermostatic control LED thermal module as claimed in  claim 1 , further comprising a power supply unit, the power supply unit being electrically connected to the controller and the fan, whereby the controller serves to generate another control signal and transmit the control signal to the power supply unit for powering on or powering off the fan. 
     
     
         3 . The thermostatic control LED thermal module as claimed in  claim 1 , wherein a support section is disposed between the heat dissipation unit and the fan, one side of the support section being inserted with the heat dissipation section, the fan being mated with the other side of the support section, the controller and the sensing unit being arranged on the other side of the support section. 
     
     
         4 . The thermostatic control LED thermal module as claimed in  claim 3 , wherein the support section has multiple support members, each two adjacent support members defining therebetween a flow way for guiding the airflow of the fan to the heat dissipation section. 
     
     
         5 . The thermostatic control LED thermal module as claimed in  claim 1 , wherein the sensing unit is selected from a group consisting of a thermistor, a thermoelectric couple and a thermal chip. 
     
     
         6 . The thermostatic control LED thermal module as claimed in  claim 1 , wherein the heat dissipation unit is selected from a group consisting of an extruded aluminum heat sink and a radiating fin assembly.