TWI390106B - Power supply, a illuminating apparatus and method thereof using water circulation - Google Patents

Description

Power supply device using water circulation, lighting device and power supply method thereof

The present invention relates to a power supply device, and more particularly to a power supply device that uses water circulation to generate electricity, and a light-emitting diode lighting device using the same, and a power supply method thereof.

Compared with the traditional light source, the light-emitting diode has the advantages of environmental protection, small volume, and good optical characteristics. With the improvement of the efficiency of the light-emitting diode, more and more lighting devices use the light-emitting diode as a light source, for example, liquid crystal. The backlight module of the Liquid Crystal Display uses a light-emitting diode to replace the conventional cold cathode tube (CCFL). For details, see "Solid-State Lighting: Toward Superior Illu-mination", published by Mi-chael S. Shur et al., Proceedings of the IEEE, Vol. 93, No. 10 (October 2005).

Generally, most of the light-emitting diodes are driven by a direct current. The mains (alternating current) needs to be converted into direct current by a bridge rectifier to supply power to the lighting device using the light-emitting diode. However, energy loss is often caused during current conversion. And waste.

In view of this, it is necessary to provide an energy-saving light-emitting diode power supply device, a lighting device, and a power supply method thereof.

A power supply device utilizing water circulation, comprising a DC generator and a water circulation system, the DC generator comprising an impeller and a power generation device, wherein the power generation device can generate electricity under the impeller, the water in the water circulation system The flow circulates in a predetermined direction, and the impeller of the direct current generator is immersed in the circulating water flow in the water circulation system and is driven to rotate by the water flow, thereby driving the power generating device to generate direct current.

A lighting device includes a power supply device and a light emitting diode light source, the power supply device includes a DC generator and a water circulation system, the DC generator includes an impeller and a power generating device, and the power generating device can be driven by the impeller Generating, the water flow in the water circulation system circulating in a predetermined direction, the impeller of the direct current generator is immersed in the circulating water flow in the water circulation system, and is driven to rotate under the driving of the water flow, thereby driving the power generating device to generate direct current to supply the light emitting Polar body light source.

A power supply method includes: placing a DC generator in a water circulation system, the impeller of the DC generator being immersed in a circulating water flow in the water circulation system, and being driven by the water flow to drive the power generation device to generate direct current.

The power supply device, the illumination device and the power supply method generate electricity by using a water flow cycle, and convert it into a direct current output to supply power to the light emitting diode light source, thereby effectively utilizing the water flow energy in the water circulation system to convert part thereof into electric energy, thereby achieving The effect of energy saving and environmental protection.

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

FIG. 1 shows a power supply device 100 according to an embodiment of the present invention. The power supply device 100 is configured to generate a direct current 205 for supplying a light emitting diode light source 30. The power supply device 100 can also be used to power other light sources, preferably for powering the light emitting diode source 30. The power supply device 100 includes a DC generator 20, A conduit 22, a pool 25 and a water circulation device 26, the conduit 22, the pool 25 and the water circulation device 26 together form a closed water circulation system. The water tank 25 contains water, and the water pipe 22 communicates with the water tank 25 and the water circulation device 26, and the water circulation device 26 can drive the water in the water tank 25 to flow in a certain direction. Therefore, the water flow in the water pool 25 can be circulated through the water pool 25 and the pipe 22 And a water circulation device 26.

The DC generator 20 is a device for performing DC power generation by electromagnetic induction. The DC generator 20 generally has an impeller 201 and a power generating device 203. The impeller 201 can be disposed in the direction of the water flow and partially immersed in the water flow such that the direction of the tangential rotation of the impeller 201 is consistent with the direction of the water flow, so that the impeller 201 can be rotated by the flow of water. The power generating device 203 can generate electricity by driving the impeller 201, and the power generating device 203 includes a stator, a rotor, and a commutator segment. The stator of the power generating device 203 includes a field winding for establishing a magnetic field in the air, the rotor includes an armature winding that rotates relative to the stator, and the rotor of the power generating device 203 is coupled to a gear device (not shown) The impeller 201 is coupled to rotate under the driving of the impeller 201, so that the armature winding of the rotor moves relative to each other in the magnetic field to induce an alternating voltage, which is converted into a direct current 205 output by the commutator segment.

The water tank 25 is a water-filled container, such as a swimming pool or an aquarium. The water tank 25 includes a water inlet 252 and a water outlet 253. The water flow can flow into or out of the water tank 25 through the water inlet 252 and the water outlet 253. .

The water circulation device 26 can be disposed in the conduit 22 or the pool 25, preferably in the conduit 22. The water circulation device 26 includes a water inlet 262, a water outlet 263 and a motor 265; the motor 265 can be powered by the utility power. The water flow is drawn in from the water inlet 262 and discharged from the water outlet 263, thereby driving the water flow to flow along the conduit 22 in a predetermined direction. In the pool 25 composed of a swimming pool, the water circulation device 26 can also be used to filter impurities in the water; in the pool 25 composed of an aquarium, the water circulation device 26 can not only filter impurities but also increase the amount of oxygen in the water.

The DC generator 20 can be disposed at the water inlet 252 or the water outlet 253 of the water tank 25, so as to facilitate the driving of the water flow; it can be understood that the number of the DC generators 20 is not limited to one, and may be multiple. Thereby it is beneficial to generate more power. In use, the motor 265 that activates the water circulation device 26 drives the flow of water along the conduit 22, and the flow of water through the pool 25 will drive the water flow in the pool 25 to change water; when the water flows through the DC generator 20, the impeller of the DC generator 20 will be driven. 201 rotates and generates power by the power generating device 203, thereby generating a direct current 205 output. Therefore, the power supply device 100 generates power by using a water flow cycle between the pool 25 and the pipe 22, and converts it into a direct current output 205 to supply power to the light-emitting diode light source 30, thereby effectively utilizing the water flow energy in the water circulation system. Partially converted into electric energy to achieve energy saving and environmental protection effect; it can be understood that the direct current generator 20 can also be disposed in a natural water flow to facilitate the position driven by the water flow, such as rivers and rivers, thereby directly utilizing the water energy in the natural water flow. Power generation, thereby eliminating the water circulation device 26, further achieving the goal of energy saving and environmental protection.

2 is a lighting device 200 for using the power supply provided by the DC generator 20 of FIG. 1 , the lighting device 200 includes a DC generator 20 , a light emitting diode light source 30 , a rechargeable battery 40 , and a certain time And a light sensor 60, the rechargeable battery 40 is connected in parallel with the light emitting diode light source 30, One end of the rechargeable battery 40 is connected to one end of the light-emitting diode light source 30 by a timer 50. The other end of the light-emitting diode light source 30 is connected to the other end of the rechargeable battery 40. The light sensor 60 is connected to the timer 50. The DC generator 20, the LED light source 30, the rechargeable battery 40, the timer 50, and the photosensor 60 constitute a closed circuit. The DC generator 20 provides DC power in the manner described in the embodiment shown in FIG. 1; the rechargeable battery 40 is configured to store electrical energy generated by the DC generator 20 and can supply power to the LED light source 30; The light sensor 60 is configured to monitor the brightness of the environment around the light-emitting diode light source 30 for controlling the on/off of the light-emitting diode light source 30. When the light sensor 60 detects that the brightness of the surrounding environment is insufficient, the light sensor 60 sends a signal to the timer 50, that is, the circuit connecting the rechargeable battery 40 and the light emitting diode light source 30, so that the light emitting diode The light source 30 is powered by the rechargeable battery 40 to illuminate the surrounding environment; when the light sensor 60 detects that the ambient brightness is sufficient, the light sensor 60 signals the timer 50 to turn off the rechargeable battery 40 and the light emitting diode light source. The circuit of 30, thereby turning off the light emitting diode source 30. Therefore, the on/off of the light emitting diode light source 30 can be determined according to the ambient brightness, thereby further achieving the purpose of energy saving and environmental protection.

Please refer to FIG. 3 , which is a lighting device 300 having a structure similar to that of the lighting device 200 . The lighting device 300 also includes a DC generator 20 , a light emitting diode light source 30 , A rechargeable battery 40, a timer 50 and a light sensor 60, the generator 20, the light-emitting diode light source 30, the rechargeable battery 40, the timer 50 and the light sensor 60 constitute a closed circuit, and the DC generator 20 can be Direct current is provided in the manner described in the embodiment of Figure 1; the illumination device 300 and the illumination device The difference between the two is that the illuminating device 300 further includes an external circuit component 70 that is powered by the commercial power source 80 to form an external circuit (not shown), the external circuit and the LED light source 30. The illuminating device 300 further has a current detector (not shown) for detecting the electrical energy condition of the rechargeable battery 40. When the rechargeable battery 40 is insufficiently stored, the external circuit component 70 can be The mains power supply 80 is turned on to supply power to the illuminating diode source 30 such that the illumination brightness of the illuminating diode source 30 reaches a set standard.

In addition, those skilled in the art can also make other changes within the spirit of the present invention, such as placing the DC generator 20 in other water circulation systems, using different water circulation devices 26 to place the DC generator 20 more suitable for receiving water flow. The position of the drive, or the DC generator 20, the light-emitting diode light source 30, and the rechargeable battery 40 constitute another illumination device as long as it does not deviate from the technical effects of the present invention. Such changes in accordance with the spirit of the invention are intended to be included within the scope of the invention.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above is only the preferred embodiment of the present invention. In this way, it is not possible to limit the scope of the patent application in this case. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

100‧‧‧Power supply unit

20‧‧‧DC generator

200,300‧‧‧Lighting device

201‧‧‧ Impeller

203‧‧‧Power generation unit

205‧‧‧DC

22‧‧‧ Pipes

25 ‧ ‧ pool

252,262‧‧‧ water inlet

253, 263 ‧ ‧ water outlet

26‧‧‧Water circulation device

265‧‧‧Motor

30‧‧‧Lighting diode source

40‧‧‧Rechargeable battery

50‧‧‧Timer

60‧‧‧Light sensor

70‧‧‧External circuit components

80‧‧‧mains power supply

FIG. 1 is a schematic diagram of a power supply device according to an embodiment of the present invention.

2 is a schematic diagram of an embodiment of a lighting device using the power supply device of FIG. 1 in accordance with the present invention.

3 is a schematic view of another embodiment of a lighting device using the power supply device of FIG. 1 in accordance with the present invention.

100‧‧‧Power supply unit

20‧‧‧DC generator

201‧‧‧ Impeller

203‧‧‧Power generation unit

205‧‧‧DC

22‧‧‧ Pipes

25 ‧ ‧ pool

252,262‧‧‧ water inlet

253, 263 ‧ ‧ water outlet

26‧‧‧Water circulation device

265‧‧‧Motor

30‧‧‧Lighting diode source

Claims (4)

A lighting device includes a power supply device and a light emitting diode light source, the power supply device includes a DC generator and a water circulation system, and the DC generator can generate electricity under the driving of a water flow, and the water flow in the water circulation system is along a predetermined schedule. The direction is cyclically flowed, and the improvement is that the DC generator is partially immersed in the circulating water flow in the water circulation system, and DC power is generated by the water flow to supply the light emitting diode light source, and the lighting device further includes a rechargeable battery and a certain time And a photosensor, the rechargeable battery is electrically connected to the DC generator for storing electrical energy generated by the DC generator, and the rechargeable battery is electrically connected to the LED light source by the timer, the photosensor and the timing The timer is connected to control the on/off of the light emitting diode light source for monitoring the brightness of the environment surrounding the light emitting diode light source and controlling the timer. The illuminating device of claim 1, wherein the illuminating device further comprises an external circuit, the external circuit is electrically connected to the light emitting diode light source, and the external circuit is used for illuminating when the rechargeable battery is insufficiently stored. The diode source is powered. A power supply method includes: placing a DC generator in a water circulation system, the impeller of the DC generator being immersed in a circulating water flow in the water circulation system, and rotating under the driving of the water flow to drive the power generation device to generate DC power, and charging The battery is electrically connected to the DC generator for storing the electric energy generated by the DC generator, and electrically connecting a light emitting diode light source, a timer and a light sensor to the rechargeable battery and the DC generator to form a closed circuit, the rechargeable battery The timer is electrically connected to the light emitting diode light source, and the light sensor is connected to a timer, and the timer is used for controlling the light emitting diode The light source is turned on/off, and the light sensor is used to monitor the brightness of the environment around the light emitting diode light source. The power supply method of claim 3, further comprising electrically connecting an external circuit to the light emitting diode light source, wherein the external circuit is used to supply power to the light emitting diode light source when the rechargeable battery is insufficiently stored.