JP6422902B2 - Portable hydropower light - Google Patents

Description

  The present invention relates to a portable outdoor lamp that can generate electricity with a small amount of water and can be lit using this electric power.

In places where people gather, it is not dark because the lights are lit at night, but there are many places where it becomes dark in less popular areas such as mountains. There is no electricity in ordinary houses, but it is often dangerous because there is no light at all away from the houses.
For example, if you go home from a work place in an urban area to a mountain home and then go to a field in the backyard of the house to collect vegetables, you must work in the darkness with no light. In addition, it is dangerous because there is no light when the collected vegetables are washed in a stream.

In recent years, power generators using a small water turbine or a small wind turbine as a power source have been frequently used. However, even with a conventional small water turbine, there must be a river with a certain amount of flow, and if it becomes a mountainous village, a small water turbine is used. There are no rivers that operate.
Also, even in a windmill, a predetermined necessary wind does not always blow in the mountains where trees stand up. Conventionally, many technologies related to a generator using a water turbine and a generator using a wind turbine have been developed.

For example, “water turbine device and small-scale generator using the same” disclosed in Japanese Patent Application Laid-Open No. 2016-14360 is sufficiently small and light enough to be easily transported, installed, used, removed and stored, and has a simple structure. In addition, it can generate power efficiently even with a small amount of water and has excellent durability.
That is, a top surface water tank and a drainage channel are secured on the trapezoid base, and a bearing seat is provided at the center of the circular inner wall, and a casing having an opening for water is embedded in the top surface water tank. A plurality of guide pipes and supply ends are connected around, and the inlet of each of the guide pipes is directed to a tangential approximate centrifugal direction aligned in the same direction around the centrifugal peripheral wall of the casing so as to be exposed to the top water tank. It is a watermill device in which the main shaft of the blade ring is rotatably mounted on the bearing seat.

  Japanese Patent Application Laid-Open No. 2014-118831 discloses a “water turbine device and a hydroelectric power generation device” in which a side wall portion of a case has a conical truncated conical shape in front of a drainage side, an impeller is disposed inside, and the case has a side wall The section is provided with a water supply pipe for supplying water to the impeller from the tangential direction of the locus of the impeller, and a drain pipe for discharging water along the axis of the impeller on the small diameter side. The impeller includes twelve blades having a small distance from the rotating shaft toward the drain pipe side around the frustum-shaped shaft member, and draws a frustoconical locus whose peripheral edge is close to the inner wall of the drainage side wall. The blade is inclined at 45 ° with respect to the rotation axis and inclined at 45 ° with respect to the radial direction from the rotation axis.

A “small wind power generator” according to Japanese Patent Application Laid-Open No. 2011-27078 is a small wind power generator that changes the direction of the windmill to such an extent that the wind force acting on the blades can be sufficiently reduced in a strong wind.
A small wind power generator in which a windmill rotates in response to wind, and the nacelle generates power by the rotation of the windmill, wherein the rotational speed detection means detects the rotational speed of the windmill, and between the windmill and the windmill direction change means The provided clutch means transmits the rotation of the windmill to the windmill direction changing means when the rotation speed of the windmill is higher than the reference value, and the rotation of the windmill to the windmill direction changing means when the rotation speed of the windmill is less than the reference value. Do not communicate. The windmill direction changing means is driven by the rotation of the windmill and changes the direction of the windmill in either the vertical direction or the left-right direction.

"Watermill device and small-scale generator using the same" according to Japanese Patent Application Laid-Open No. 2016-14360 "Watermill device and hydroelectric power generation device" according to Japanese Patent Application Laid-Open No. 2014-118831 "Small wind power generator" according to JP 2011-27078

As described above, various relatively small water turbines and windmills are known. However, even if it is a conventional small water turbine, it rotates using the valley water flowing through the mountains, and the generator cannot be turned by this rotational force. Of course, such a very small hydroelectric generator does not exist.
The problem to be solved by the present invention is this problem, and it is possible to generate electricity by turning a water turbine with a very small water flow, and to provide a portable hydropower lamp capable of lighting an outdoor lamp using this electric power. To do.

The water wheel constituting the portable hydropower lamp according to the present invention is configured to generate electricity by rotating using a water amount of 1 to 2 liters / second with a head of 0.5 m to 1 m. A generator that can efficiently generate electricity with a low head and a small amount of water, and garbage such as grass and twigs mixed in the water are configured so that the turbine does not stop and break down.
Therefore, a support column is erected on the base and a water turbine is rotatably supported on the support column. The turbine rotates in a vertical plane around a horizontal rotation shaft provided on the support column.

The water wheel has a plurality of blades, and an outlet of an outflow pipe (water supply pipe) is arranged above the water wheel so that falling water hits the blades. And it is set as the structure linked so that a small generator may rotate by rotation of the rotating shaft of a water turbine. The small generator may be directly connected to the rotating shaft of the water turbine, or the generator may be linked via a gear or the like.
Further, LED lighting is attached to the frame, and the LED lighting can be turned on by electricity generated by the generator.

The portable hydropower lamp of the present invention can generate electric power with a small amount of water (for example, valley water) flowing between mountains. It is possible to brighten the surroundings by carrying and installing a portable hydroelectric outdoor light in a backyard or work place without an external light, and no special electrical wiring is required.
The portable hydropower lamp of the present invention has a structure equipped with a water wheel that rotates in a vertical plane around a horizontal axis, and the water wheel rotates by dropping a small amount of water falling from above onto the outer periphery of the water wheel. The generator can be turned by the rotational force, and the LED lighting is turned on by the electric power generated from the generator.

The front view which shows the portable hydraulic external light which concerns on this invention. The side view which shows the portable hydraulic external light which concerns on this invention.

  FIG. 1 and FIG. 2 show an embodiment of a portable hydropower lamp according to the present invention, and show a front view and a side view. In the figure, reference numeral 1 denotes a water wheel, 2 denotes LED lighting, and 3 denotes a handle. The water wheel 1 can be pivotally supported on the upper ends of both supports 5 and 5 standing from the base 4 and rotate. The water wheel 1 has a structure in which a plurality of blades 7, 7... Are arranged between parallel disks 6 and 6.

  Elongated side plates 8, 8 are attached to the columns 5, 5 to stand vertically, and a rainproof roof 9 is attached to the upper ends of the side plates 8, 8. Arms 11a and 11b are attached to a support plate 10 extending downward from the rainproof roof 9, and LED lights 2a and 2b are provided at the ends of the arms 11a and 11b. Here, the arms 11a and 11b can be turned to the support plate 10 via shaft pins.

By the way, a water supply pipe 12 is disposed above the water turbine 1, and the water supply pipe 12 guides valley water flowing through the mountains to the water supply pipe 12 and causes it to flow down to the water turbine 1. Therefore, the tip of the water supply pipe 12 is curved in an L shape and flows down vigorously to the blades 7, 7... Of the water wheel 1, and the water wheel 1 can be rotated. Here, the water supply pipe 12 can be attached to the side plates 8 and 8 and configured as a part of the portable hydraulic external light. Alternatively, the water supply pipe 12 can be separated from the portable hydraulic external light and an appropriate water supply pipe 12 can be disposed. Is possible.
By the way, the generator is driven by the rotation of the water turbine 1 to generate electricity, and the electricity can be led to the LED lights 2a and 2b to be turned on.

This portable hydropower lamp can obtain about 9.8 w as theoretical energy when supplying a water amount of 1-2 liters / second with a drop of 0.5 m to 1.0 m from the water supply pipe 12 to the water turbine 1. If the efficiency is 20 to 30%, an illumination power source of 1.9 to 2.9 W can be obtained.
In order to efficiently generate electricity with a low head and a small amount of water, a generator that can generate electricity at a low rotation speed and a turbine structure that does not stop with dust such as grass or twigs mixed in the water are required.

  In the case of the water wheel 1 of the type shown in the above embodiment, when the dust rotates in the vertical plane with the horizontal rotation axis as the center, and dirt is mixed in the water, the dust gets over the water wheel and flows down to the downstream. It does not affect the rotation of the. Therefore, the diameter of the water turbine 1 is about 30 cm, and the width of the water turbine 1 is 15 cm, assuming that the water volume is 2 liters / second.

As a generator, a strong hub dynamo that is strong against rain water and generates electricity at a low speed and is attached to a bicycle can be used. The shaft of the hub dynamo is directly connected to the rotating shaft of the water turbine 1, and the water turbine 1 and the generator are integrated.
In the portable hydropower lamp, when the head is 1 m and the water volume is 1 liter / second, about 1.8 W of power is obtained.
In addition, when the head was 0.5 m and the water volume was 2 liters / second, about 1.8 W of power could be generated.

When a bicycle light of about 6V-0.25W is used as the lighting load, even if four units are lit, the power consumption is 1W, and even if the amount of water changes slightly, it can be handled.
By the way, the portable hydropower lamp shown in the above embodiment has a weight within 7 kg and a height from the base 4 to the handle 3 within 90 cm. Therefore, it can be easily carried, and it is convenient to install it or to store it in a predetermined place.

  By the way, the portable hydropower lamp of the present invention can be used as a kidnapping lamp as a usage method other than illuminating a predetermined place. Nocturnal insects, such as moths and some beetles and stink bugs, are often attracted by illumination sources, and the wavelength range of light that insects perceive is in the range of human visible light (400-700 nm) ) Is far beyond the ultraviolet region (250-400 nm), and many insects recognize ultraviolet rays that are invisible to humans as “colors”. Of the light sources that attract nocturnal insects, light sources that emit relatively much ultraviolet light are said to have a higher attraction. It is also possible to configure a light source having a high attractability to these insects as an LED to function as a portable hydraulic kidnapping lamp.

DESCRIPTION OF SYMBOLS 1 Waterwheel 2 LED lighting 3 Handle 4 Base 5 Prop 6 Disc 7 Blade 8 Side plate 9 Rainproof roof
10 Support plate
11 Arm
12 Water supply pipe

Claims (2)

In the external light that turns on the light by the electricity generated by turning the generator by rotating the water wheel , the water wheel is arranged at the upper end of the column that stands up from the base, and the column is attached with an elongated side plate that stands vertically In addition, a rainproof roof is provided at the upper end of the side plate, and a handle is attached to the rainproof roof. The rotating shaft of the water turbine is supported so as to be horizontally rotatable in a vertical plane, and has a predetermined interval. A plurality of blades are attached between the parallel disks, and a water supply pipe is provided above the water wheel so that the tip is bent into an L shape and flows down to the blades in order to supply water. A generator that generates electricity by rotating the water wheel, and an illumination that is turned on by the electricity generated by the generator, the illumination is directed to a support plate that extends downward from the rainproof roof via an axial pin. At the tip of the arm that can be changed Only, that drop the waterwheel is operated by water 1-2 liters / sec 0.5M～1m, also the weight of the entire device is less 7 kg, the height of the possession from the base to within a 90cm A portable hydropower outdoor light. The portable hydropower lamp according to claim 1, wherein the illumination is configured by an LED having a high attractability to insects and functions as a kidnap lamp.

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