The present invention relates, in general, to a lighting apparatus with utilization of light emitting elements and, more particular, this invention relates to a lamp body structure to be used with light emitting diodes (LED).
1. Field of the Invention
The present invention relates generally to electrical lighting apparatus, and more particularly to a lamp apparatus comprising a plurality of light emitting elements, such as light emitting diodes(LED), incorporated with heat dissipation device (heat sink) for dissipating waste heat and keeping operation temperature low. The present invention lamp body structure includes heat dissipating fins and connecting structure to allow highest rigidity and heat dissipation while keep the weight and cost down.
2. Description of the Related Art
A number of different principles of LED lamps and LED light bulbs have been developed over the years. Since LED operates the best at lower temperature, many lamps or bulbs employ heat dissipation device that transfers heat generated within a solid material to a fluid medium, such as air or a liquid, (so call heat sink).
A conventional heat sink has a block of base and many heat-dissipating fins. The item requires heat dissipation is designed to attach to the base of heat sink for quickly transmit waste heat to neat by fins and eventually conduct heat exchange to ambient air. The block heat sink base is especially helpful to spread out focused heat point to wide area of heat dissipating fins.
Typically LED lamp employs multiple light emitting elements that located at a wider area of circuit board, and then said circuit board attaches to base of heat sink. This conventional thinking of combining pre-made LED circuit board and pre-made heat sink method does not help airflow rate near the heat sink base; but increase the weight of lamp.
The present invention comprises a plurality of heat dissipating fins, said fins having mounting seats for Light emitting elements to directly mount on; together with connecting means to connect said heat dissipating fins to form a rigid lamp body. However, the connecting mean is not meant to be entire base wall which may stop airflow to and from its direction.
Assuming said mounting seat mounts LED off a fixed angle from said fin's edge, by controlling the contour of fin is made of, the light output angle of each LED attaching to said fin can be arranged. Base on the same reason, by controlling the mounting angle of each fin can control light output angle of all LEDs mounted on that fin. A lamp of present invention may comprise of a plurality of fins aligned to different angles to spread out light output.
Compare to conventional heat sink design, the present invention do not have a block heat sink base. Therefore, there is one less wall to block air flow. This is especially important, when lamp is mounted horizontally, wherein air flowing from below is not blocked.
Prior to proceeding to the more detailed description of the present invention, it should be noted that, for the sake of clarity and understanding, identical components which have identical functions have been identified with identical reference numerals throughout the several views illustrated in the drawing figures.