LED downlight capable of regulating illumination Angle

A light-emitting diode (LED) downlight capable of regulating an illumination angle comprising:

• at least a light source device,
• a swing component,
• a light distribution mechanism,
• a rotation component,
• a casing component, and
• a power source device,
• with the light source device including a heat sink, an LED light source and a support rack, the heat sink composed of a central solid body outwardly arranged to show heat dissipation slices of scattered arrangement;
• the LED light source supported by the support rack and coupled to a bottom surface of the heat sink, a center of the support rack opened with a large piercing hole provided for the LED light source to downwardly project a LED beam;
• the swing component including an upper sliding vane and a lower guide flake, the upper sliding vane having a main slice body with a curved shape and a large center hole at its center and a set of through holes on one set of two opposite side edges and respectively raised with a coupling grip at the other set of two opposite side edges;
• the lower guide flake having a main sheet body having a curved shape and a large slot, the curved shape of the main sheet body of the lower guide flake corresponding to curved shape of the main slice body of the upper sliding vane, the main sheet body of the lower guide flake having a narrow guide slot on one set of two opposite side edges and respectively and downwardly bent to form a support sheet body along the other set of two opposite side edges, a bottom of the support sheet body further bent to form a coupling sheet body;
• the upper sliding vane placed on the lower guide flake so that the set of through holes on the one set of two opposite side edges of the upper sliding vane respectively align with the narrow guide slots on the one set of two opposite side edges of the lower guide flake, a regulation screw member first passing through a lower gasket, an elastic member and an upper gasket and locked with a nut after passing through the narrow guide slot of the lower guide flake and the through hole of the upper sliding vane, the nut pushed to downwardly prop the main slice body of the upper sliding vane to attach the main sheet body of the lower guide flake through effect of elastic force of the elastic member;
• the light distribution mechanism including at least one fastening cylinder and a light distribution member, a top portion and a bottom portion of the fastening cylinder opened to inwardly form an accommodation space, the fastening cylinder remaining a shield wall at bottom periphery, a wall body of the top portion of the fastening cylinder opened with a plurality of slots, the light distribution member accommodated in the accommodation space of the fastening cylinder to be supported by the shield wall, the slot of the fastening cylinder further snapped with a bottom surface of the heat sink;
• the light distribution mechanism and a combination body of the LED light source and the support rack vertically passing through the large center hole and the large slot of the swing component to allow the bottom surface of the heat sink to be in contact with the coupling grip of the upper sliding vane, a coupling member further passing through the coupling grip to couple the bottom surface of the heat sink;
• the rotation component including at least an upper rotation ring and an upper fastening ring, the upper rotation ring being a ring body and opened with a large piercing hole at its center and disposed with at least two sets of coupling holes synchronously disposed and near an inner edge;
• the upper fastening ring being a ring body and having a large piercing hole at its center, the ring body further divided into an external ring wall and an inner ring wall, the inner ring wall being higher than the external ring wall;
• the rotation component incorporated with a support rack mechanism, the support rack mechanism having a plate body, the plate body opened with a large mounting hole;
• the upper rotation ring placed on the plate body of the support rack mechanism, the large piercing hole of the upper rotation ring aligning the large mounting hole of the plate body to cover the inner ring wall of the upper fastening ring on the upper rotation ring, after the external ring wall of the upper fastening ring attaching the plate body, a coupling member coupling the plate body by passing through the external ring body of the upper fastening ring;
• a connecting sheet body of the lower guide flake in the swing component attached on the upper rotation ring, a coupling member passing through the connecting sheet body to couple the upper rotation ring;
• the casing component having a reflective mask, the reflective mask having a narrow upper portion and a wide lower portion and formed with a wall at a bottom edge of an external surface and having a cone shaped light hole, which is vertically penetrated and shows the narrow upper portion and the wide lower portion, at its center, the light hole further comprising an inclined side hole disposed toward a side except a top surface portion, an external surface of the reflective mask having at least two coupling walls synchronously disposed;
• the reflective mask accommodated in the large mounting hole of the plate body of the support rack mechanism;
• and
• the power source device disposed on the plate body of the support rack mechanism and introduced by receiving supply mains to perform circuit finishing work of regulator rectification therein, thereby transmitting and driving the LED light source to emit light.