Patent Application
20160040831
1. Field of the Invention
The present invention relates to an energy saving light bulb with a low amount of heat released, an improved electrical efficiency and adjustable brightness and power consumption.
2. Description of Related Art
As shown in
Besides, the conventional LED bulb (7) usually actuates the LED (71) by an electronic transformer (73) comprising a plurality of electronic components (731). The electronic transformer (73) is expensive and also generates a lot of waste heat during actuation, so the LED bulb (7) is prone to burning out due to an increased overall temperature of the LED bulb (7). Moreover, the plurality of electronic components (731) of the electronic transformer (73) containing many heavy metals may cause pollution and damage to the environment.
In view of the above-mentioned problems, the object of the present invention is to provide an energy saving light bulb with a low amount of heat released, an improved electrical efficiency and adjustable brightness and power consumption.
Disclosed herein is an energy saving light bulb, comprising a lampstand having a conductive connector; a pyramid assembly having a plurality of assembly surfaces; a plurality of LEDs disposed on the plurality of assembly surfaces; a plurality of rectifier diodes disposed on the plurality of assembly surfaces; a choke inductor having a first terminal and a second terminal disposed on the pyramid assembly for current input and current output, wherein the first terminal connects to the plurality of LEDs and the plurality of rectifier diodes by a wire, and the second terminal connects to the conductive connector of the lampstand by a wire; and a lampshade for assembling on the lampstand to shelter the pyramid assembly, the plurality of LEDs, the plurality of rectifier diodes and the choke inductor.
Accordingly, the pyramid assembly increases an emission angle, and a high-voltage and low-current LED module constituted by the plurality of LEDs in series and in parallel to reduce the current, thereby decreasing heat generation. Furthermore, the choke inductor can adjust the current to improve electrical efficiency, save energy, and reduce heat generation during actuation of the LED module without setting heat dissipation fins, which not only prevent components from burning out due to overheating but also save much manufacturing cost.
Hereinafter, an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.
First, a stereogram and a cross-sectional view showing an energy saving light bulb according to the present invention are revealed in
In use of the energy saving light bulb, the conductive connector (11) of the lampstand (1) connects to a socket of a power source, allowing an output current to flow through the conductive connector (11) and into the second terminal (52) of the choke inductor (5) connecting to the conductive connector (11), allowing the energy saving light bulb to light up at night or in the dark. Moreover, the choke inductor (5) can adjust the voltage across an electronic circuit to maintain a constant electric current and output a power source suitable for use by the LEDs (3) and the rectifier diodes (4) on the pyramid assembly (2). Then the current flows into a LED module constituted by the plurality of LEDs (3) from the first terminal (51) of the choke inductor (5), allowing the LED module to emit light. Because the plurality of LEDs (3) is disposed on the plurality of the assembly surfaces (21) of the assembly surfaces (21), light can be emitted toward various directions, so as to increase light uniformity and illumination area of a LED bulb.
Accordingly, the current flowing through and regulated by the choke inductor (5) can improve electrical efficiency and extend the life of the LED module. In addition, the plurality of LEDs (3) constitutes a high-voltage and low-current LED module (a.k.a. HV LED) in series and in parallel, so heat generated during actuation of the LED module can be decreased without setting heat dissipation fins on the lampstand (1), which prevents components in the bulb from burning out due to overheating and lowers manufacturing cost of the lampstand (1). Furthermore, the energy saving light bulb of the present invention utilizes the choke inductor (5) consisted by electromagnetic steel sheets and coils instead of an electronic transformer for actuating the LEDs (3) to emit light, which saves much manufacturing cost, decreases a large amount of heat released during actuation of the choke inductor (5), extends the life of the LED module, and prevents heavy metal pollution.
In the foregoing description, the energy saving light bulb of the present invention can further has an adjustable resistor on an outside of the lampstand (1). The adjustable resistor connects to the choke inductor (5) by a wire and has a regulator so that resistance of the adjustable resistor can be adjusted by the regulator, thereby altering the voltage of the choke inductor (5) and changing the current flowing into the LEDs (3) by the choke inductor (5). Accordingly, the energy saving light bulb has an improved electrical efficiency and adjustable brightness and power consumption.
According to the above description, in comparison with the traditional technique, an energy saving light bulb according to the present invention has the advantages as following:
LEDs to emit light by the choke inductor so that heat generated during actuation of the LED module can be decreased. Therefore, the present invention prevents components in the bulb from burning out due to overheating and extends the life of the LED module.
