Abstract: The present invention provides a light emitting diode LED recessed lighting lamp. The lamp includes a base with a LED assembly surface and a circumferential assembly stop flange shaped around the base for mating with the LED assembly surface. The LED assembly surface is provided with a circuit hole. There is an LED assembly, containing a printed circuit board PCB, a plurality of LED units and electric wire. The back of PCB is assembled securely onto the LED assembly surface of the base. The electric wire penetrates the circuit hole of the LED assembly surface and extends towards the second end of the base. A diffuser externally covers onto the LED assembly surface of the base. A heat-radiating base contains a heat-radiating portion with expanded area. There is an assembly locating member, assembled laterally on the second end of the base.

Abstract: The present invention provides an airflow generator, including a plate, a magnetic brake and a housing. The plate has a pivot point and a swinging end. Two magnetic poles are assembled at predefined locations on the plate nearby the pivot point. The magnetic coil is located opposite to magnetic poles of the plate, then a controller is used to control the magnetization state of the magnetic coil, thus yielding suction and repulsion with magnetic pole and driving the swinging end of the plate. The volume of the generator of the present invention is minimized, but an efficient heat-radiating effect is achieved to resolve the bottleneck of a typical radiator fan, making it applicable to the heat-radiating structure of various small-sized electronic devices.

Abstract: A gyrating device includes a stator and a rotor. The stator is formed of at least one induction member and two induction coils connected with the induction member by an induction signal. The rotor is formed of at least one magnet and two inductors. The rotor is caused to engage in a reciprocating motion by an attracting force and a repelling force, which are brought about between the magnet and the induction coils at the time when the induction coils are driven by a voltage. The action force and the reaction force of the reciprocating motion of the rotor can be changed at a speed by adjusting the voltage, thereby resulting in a vibrating motion of the rotor.