JP2003106250A - Wind-power generator for learning - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wind power generator of simple structure capable of allowing children to easily and pleasantly learn scientific knowledge with interest. SOLUTION: This wind-power generator comprises a casing 3 having the shape of a helicopter with a vertical rear plane 4, and the casing 3 is provided with a rotary wing 1 connected to a generator 2, and a supporting point part 5 for making the casing 3 rotatable in the three-dimensional direction, whereby an upward deviation-type generator is formed.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a wind power generator,
In particular, the present invention relates to a learning wind power generator that is suitable for making students interested in science and acquiring those elementary knowledge while enjoying them.

[0002]

2. Description of the Related Art In the drawings, reference numerals used in the description of the present invention have the same operation and the like, so as to avoid duplication of the description, and the respective directions used in the description are the same as those in the drawings. The left side is the front, the right side is the rear, the upper side is the upward direction, and the lower side is the downward direction. Further, the normal wind direction in the drawings will be described as blowing from the left to the right. Further, a material that is weak against impact, that is, a material with weak impact, and a mechanism that is sensitive to impact, that is, a mechanism with weak impact and a combination of the above materials and mechanism are collectively referred to as a structure with weak impact. I will do it.

First, as a first conventional example, FIG. 1 has been widely known in recent years (an explanatory view of a wind power generator of the first conventional example).
The up-wind type (the type in which the rotor always faces the wind) is explained.

This wind power generator has a rotor 1 connected to the generator 2 in front of a housing 3 having a generator 2, and a tail 4 which functions to always orient the rotor 1 upward in the wind. It is provided. Further, a variable pitch mechanism 7 is provided at the base of the rotary blade 1 so that the pitch of the rotary blade 1 can be varied so that the rotary speed can be controlled to a predetermined number of revolutions even if the wind force changes. Furthermore, the casing 3 is formed at the tip of the pole 6 via a horizontal rotation shaft portion 5 (which is capable of horizontal rotation).

Next, as a second conventional wind power generator, an upward deflection type wind power generator as shown in FIG. 2 (an explanatory view of the second conventional wind power generator) will be described. This wind generator has 2
It is a classic that has been known since 0 years (inventor; Motohiro Yamada).

The wind power generator is provided with a rotor blade 1 connected to a generator 2 provided in a casing 3, and a casing 3 rotatably in a vertical direction at a swing fulcrum 10 above the horizontal rotating portion 5, Further, the horizontal rotating portion 5 is provided with a tail arm 7 having a tail 4 toward the rear, and a weight arm 9 having a counterweight 8 at the front lower part of the housing 3.

Therefore, in a weak wind, the rotor 1 faces the wind by the counterweight 8, and in a strong wind, the rotor 1 moves upward about the swing fulcrum 10 due to the lift, and the rotor 1 becomes parallel to the wind. It had a structure in which rotation was controlled.

Next, a conventional rotary blade will be described. Conventionally, it was common knowledge that the material selection and structural design of rotor blades of wind power generators were light and durable. Therefore, as the material, a resin containing carbon fiber or glass fiber, which has high tensile strength and impact resistance, is used, and it is known that a metal shaft is inserted so that the root strength of the blade is particularly strengthened.

[0009]

In recent years, the first conventional example has come to be seen as a high-power type in which a large tower 1 is attached to a high tower. Therefore, wind power generators were so expensive that it was impossible to pick them up. Therefore, it was difficult for the general public to understand only the background of tourism photography, and it was difficult to obtain much interest and understanding about its physical function.

On the other hand, the second conventional example does not develop because it is structurally large in size because it has many movements (three-dimensional movement) for a large electric power equipped with a large rotary blade 1. It was

The learning-use wind power generator for understanding the science needs only to have a structure and operation so that it can be of a small size. Furthermore, in order to understand the structure and operation, it is better to assemble the parts like a model airplane and make it yourself to experience it. However, the troublesome work and structure make it difficult for children to keep up and the feasibility is poor. Furthermore, it is the most important thing to make children interested, such as the operation after production and installation.

Therefore, the second conventional example of the upward deflection type, which has a simple structure and is easy to make without a variable pitch mechanism, is suitable as a wind power generator for learning. Furthermore, the rotary wing 1 that moves around in three dimensions is suitable because it has large movements and there are enough elements that interest children.

However, since this wind power generator moves greatly in three dimensions as described above, there is a risk that the rotor blade 1 may move in an unexpected direction during installation or during operation, resulting in injury to a child's hand or face. is there. Therefore, a method to avoid this danger must be devised.

Further, in order to make the child interested, the shape of the housing 3 must be cool, so that it is necessary to devise the shape of the housing 3 and the whole.

Further, since the wind power generator is installed in a windy place such as a rooftop, it is exposed to rain, and it is necessary to allow water that has entered the inside of the housing 3 to be drained even when it is deflected upward. is there.

Since it is for learning, an anemometer having an expensive and complicated structure is required in order to understand the relationship between wind speed and power generation in an easy-to-understand manner. Therefore, an inexpensive means for understanding the wind speed is required. .

[0017]

According to a first aspect of the present invention, a rotary blade 1 is provided.
The rotation control is configured by an upward deflection method, the tip of the rotor 1 has a large R surface, and the rotor 1 is not damaged by strong wind during rotation but is damaged immediately when touched by a person. The present invention relates to a learning wind power generator characterized by being configured with.

As described in claim 2, even if the rotary blade 1 is deflected from vertical to horizontal, the water that has entered the housing 3 containing the generator 2 can always be drained so that the center side of the upward deflection movement rotation is At the wall surface of the casing 3, which is always on the lower side,
1. The present invention relates to the learning wind power generator according to claim 1.

According to a third aspect of the present invention, the wind power generator is provided with a wind speed indicator plate 15 provided with a wind speed scale and a pointer 14, and either the indicator plate 15 or the pointer 14 is rotatably moved by upward deflection. The wind power generator for learning according to claim 1 or 2, wherein the wind speed is expressed by rotating the wind power generator.

As described in claim 4, the casing of the wind power generator is formed by imitating the shape of the front portion of the casing 3 of the helicopter, and the tail 4 is provided at a position behind the casing 3 which is deflected upward. ,
When the rotor blade 1 is deflected upward and becomes almost horizontal,
The present invention relates to a learning wind power generator according to claim 1, 2 or 3, wherein the wind power generator is configured to have a helicopter shape with the housing 3 and the tail fin 4.

According to a fifth aspect of the present invention, the shape of the weight arm 9 of the upward deflection type wind power generator is sled-shaped, and the shape of the counterweight 8 is configured as the shape of a load for a special mission. 5. The learning wind power generator according to claim 4, characterized in that the outer shape is configured to be the shape of a helicopter for special missions.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention (how to carry out the invention) will be briefly described with reference to the drawings and showing its function and effect. The drawings are FIG. 3 (explanatory view (root cross-sectional view) of a rotary blade of the embodiment, (including a cross-sectional view of the tip), and FIG. 4 (explanatory view of structure and shape in a breeze state of the embodiment (detailed view of the rotary blade)). , (Side view), (Bottom view)
FIG. 4 (including a diagram), FIG. 4 (explanatory view of the structure and shape of a strong wind state of the embodiment (side cross-sectional view) (external view of the mask)), and FIG. Terminal circuit), (measurement circuit) (including searchlight circuit), and (charging circuit)).

Since the rotor 1 of the learning wind power generator of the present invention is of the upward deflection type as described in claim 1, it makes a large movement. Therefore, whether the rotor blade 1 is formed of a weak impact resin so as not to be injured even if it is touched, or is a weak impact mechanism provided with a weak structural hole 17 at the base as shown in FIG. Alternatively, both (material and mechanism) are combined to form a weak impact structure so that the entire wing is broken when an impact is received during rotation. Further, the part of the critical area (range of the arrow) at the tip of the wing, that is, the sharp edge part in the forward direction in which the blade is moving and rotating is indicated by a black portion in the cross-sectional view of the R surface difference 1
Considering safety as a large R side like 9.

Next, as shown in claim 2, even with respect to the movement in the breeze and the strong wind, as shown in FIGS. 4 and 5, on the wall surface of the casing 3 which is always on the lower side on the center side of the upward deflection movement rotation, By providing a continuous long drainage port 11, it is possible to constantly drain the invading rainwater.

Further, in the third aspect of the invention, as shown in FIG. 5, the wind speed display plate 15 and the pointer 14 are provided, and the value of the wind speed is displayed by utilizing the position of the casing which is deflected and rotated upward according to the wind speed.

Further, according to a fourth aspect of the present invention, as shown in FIG. 5, the casing 3 of the wind power generator is formed by imitating the shape of the front portion of the casing of the helicopter (for example, it is formed in a cocoon shape). By providing the tail 4 at a position rearward of the housing 3 which is deflected upward, the helicopter can be shaped like a child's favorite when it is deflected upward.

According to the fifth aspect of the present invention, as shown in FIG. 5, the counterweight 8 required for the upward deflection system is formed in the shape of a load for a special task, for example, a weapon, and the weight arm 9 has a sled shape. Make the wind generator look like a special mission helicopter, such as a combat helicopter, to attract children's attention.

With this configuration, the child can enjoy learning like a model airplane by understanding the shapes and functions of the assembled parts, and by completing and installing them, he / she can learn the actual workings of the wind power with interest. I can do things. In addition, safety measures are taken into consideration to prevent injuries. In addition, the structure is simple and not only easy for children to make, but also because the parts can be prepared at a low price, it can be provided as a learning wind power generator kit.

[0029]

[Embodiment] To avoid duplication of explanation, the same structure as the conventional
The operation part will be omitted, and an embodiment of the present invention will be specifically described with reference to FIGS. 3, 4, 5, and 6.

First, the rotor 1 according to the first aspect will be described. The wind power generator of the present invention is basically of the upward deflection type. Since the rotor 1 is for learning, the length may be small. For example, the blade has a total length of 300 mm. In consideration of safety, the wing 1 is constructed so as to be destroyed when it receives an impact. Therefore, in order to demand safety from the material, it is formed by molding with a weak impact resin. For example, it may be made of expandable polystyrene. Alternatively, as in the embodiment shown in FIG. 3, it is configured as a weak impact mechanism. For example, maximum allowable wind speed 30
The operating limit is m, and the mechanism is such that the rotating blade 1 is damaged when touched. Alternatively, the material and the mechanism are combined. The rotor 1 is constructed by these means, that is, a weak impact structure.

The weak impact mechanism used in the embodiment will be described below with reference to FIG. Conventionally, the weak impact mechanism is configured by providing a weak structural hole 17 of a through hole at the base of the rotary blade 1 that must be strengthened.

In the embodiment of FIG. 3, the through hole is used, but the surface of the blade on which the wind is exposed may be left as a blind hole to reduce the rotational resistance to form a weak impact mechanism. The size of this hole is experimentally determined under the maximum allowable wind speed.

Furthermore, as shown in FIG.
Then, a cutting recess 20 is provided. Further, a shallow groove may be formed on the front surface or the back surface in the width direction of the rotation direction so that the structure is weakly impacted by bending and breaking in the direction perpendicular to the rotation surface (not shown). With this configuration, even if the rotor blade 1 moves three-dimensionally by upward deflection, it can be enjoyed safely.

Next, the drainage port 11 according to the second aspect will be described. A wind power generator that is exposed to wind and rain has a risk that rainwater may enter the inside of the housing 3 and cause a failure of the power generator 2 and an electric circuit. Therefore, sufficient consideration should be given to drainage. Therefore, FIG.
As shown in, the center side of the upward deflection movement rotation (swing fulcrum 1
A long continuous drainage port 11 is provided on the wall surface of the casing 3 which is always on the lower side (0 side) to drain water.

In the case 3 of the upward-deflection type wind power generator, the position of the lower side where water is stored is different by approximately 90 ° between when the wind is light and when the wind is strong. Accordingly, the housing 3 is provided with the drainage port 11 having a continuous length at the lower side of about 90 °. The groove width of the drainage port 11 may be about 1 mm. Although the groove-shaped one has been described here, it may be composed of a plurality of continuously arranged drainage holes that operate equivalently without departing from the spirit of the invention. With this structure, drainage is possible even at an arbitrary wind speed.

Next, the wind speed display according to the third claim will be described. Since it is for learning, it is preferable to be able to understand the outline of the relationship between power generation and wind speed. The amount of power generation can be known by directly measuring the voltage of the generator (see the voltmeter 21 in FIG. 6 dictated), but the wind speed has conventionally required a special anemometer. In the wind power generator of the present invention, the anemometer is configured so that the outline of the wind speed can be grasped at the deflection rotation position of the housing 3 depending on the wind speed by utilizing the characteristic of the upward deflection.

That is, as in the embodiment shown in FIGS. 4 and 5, the wind velocity scale plate 15 and the pointer 14 are provided, and any one of them is rotated in association with the casing 3 which is rotationally moved to display the wind velocity. In the embodiment, the graduated wind speed display plate 15 is fixed to the horizontal rotating portion 5, the pointer 14 is fixed to the rotation axis (swing fulcrum 10) of the housing 3, and the pointer 14 is rotated according to the rotation of the housing 3.
To rotate.

With this structure, the wind speed can be grasped at the position of the pointer 14. In the wind power generator of the embodiment, the balance weight 8 is selected so that the rotor 1 is located at a position facing the wind at a wind speed of 2 m or less, and is substantially parallel to the wind at a wind speed of 15 m or more. It is provided on the display board 5.

Therefore, by looking at the display plate 15 and the pointer 14, it is possible to know the outline of the wind speed. Since there is no special complicated mechanism as an anemometer like this, an anemometer can be attached at a low price. In addition, since the wind speed can be known from this, even if a child can easily understand, the wind speed can be roughly estimated only by looking at the rotational position (tilt) of the housing 3 from a distance.

In the embodiment, the pointer 14 is rotated and moved in relation to the housing 3, but the pointer is fixed to the horizontal rotating portion 5 and the wind speed display plate 15 is moved in relation to the housing 3. Even if you can make a similar anemometer. (Not shown)

Next, the shape of the housing according to the fourth aspect will be described. Children need to be always interested in things such as manufacturing, experiments and observations. The upward deflection method is of great interest because of its large motion, but the technology of this method includes aerodynamic lift. Therefore, in order to bring the interest closer to the lift, the casing 3 of the wind power generator is configured to have a shape that can estimate a helicopter that a child likes.

Therefore, in the embodiment shown in FIG. 4, the housing 3 is constructed by imitating the housing 3 of the wind power generator in the shape of the front part of the housing of the helicopter. For example, an elliptic sphere, an egg, a cocoon, or the like. Further, the tail 4 which is conventionally located on the vertical line behind the horizontal rotating portion 5 is located at a higher position, that is, on the approximately vertical line behind the housing 3 which is deflected upward. It should be installed at the position. By doing this, it becomes a helicopter at a distance when it is deflected upward by a strong wind.

Next, the counterweight according to the fifth aspect will be described. The counterweight 8 and the weight arm 9 are essential items for upward deflection. However, it is a rugged shape that it is attached, and it becomes a factor that impairs interest.

In the embodiment shown in FIGS. 4 and 5, the long protruding weight arm 9 is formed in the shape of a sled, and the counterweight 8 is formed in the shape of a special mission load to make it like a special mission helicopter. In FIG. 4, two cannons are attached to the tip of a sled-shaped weight arm 9 as the above-mentioned load to form a combat helicopter.

Although not shown in the drawings, this load is not limited to a machine gun, and a plurality of missiles may be provided to form a combat helicopter.

The characteristic of upward deflection depending on the wind speed can be changed by the balance weight 8, that is, the weight of the load. For example, the machine gun may be configured so that bullets can be loaded arbitrarily, and the characteristic of upward deflection may be adjusted arbitrarily depending on the number of bullets loaded.

Further, as shown in FIG. 5, the load of the counterweight 8 may be in the shape of a large searchlight to form a helicopter for reconnaissance. In this case, if the searchlight is turned on by the output of the power generator 2, it becomes more interesting, and the power generation state can be known by the lighting state.

Regarding the electric circuit related to the wind power generator of the embodiment, its configuration will be briefly described with reference to the explanatory diagram of the electric circuit of FIG. 6 and its details will be omitted. The first output terminal 16 for taking out the output of the power generator 2 is similar to the first output terminal circuit in the housing 3
To be installed. Next, the searchlight of the load on the counterweight 8 is provided with an input terminal 30 and a lamp 25 like a searchlight circuit. (The LED 24 and the resistor 23 are connected to the lamp 25 as shown by the dotted line.
May be provided instead of).

For measuring the voltage of the generator, an input terminal 30 and a voltmeter 21 are provided like a measuring circuit. The charger is provided with an input terminal 30, a diode 27, a nickel-cadmium battery 28, and a second external output terminal (having the same shape as the first external output terminal) like a charging circuit.

With the searchlight, the input terminal 30 of the searchlight circuit is connected to the first external terminal 16. When knowing the output of the generator, the input terminal 30 of the measuring circuit is connected to the first output terminal 16. When filling, the first output terminal 16
The input terminal 30 of the charging circuit is connected to. The input terminal 30 of the searchlight circuit or the measurement circuit may be connected to the second output terminal when the charge state is known.

In order to avoid rapid changes in the upward deflection rotation and horizontal rotation movement, highly viscous grease may be used for the rotary shafts thereof or a rotary damper may be associated therewith.

Since the wind power generator of the present invention basically adopts the upward deflection system, the characteristic of the system is 100%.
Utilizing the above structure, the device is devised and configured as described above, so many problems as a learning wind power generator can be solved. Further, according to the present invention, it is possible to provide an excellent learning wind power generator that can always attract children's interest and enjoy learning science learning.

[0053]

Since the effects have been described in detail in the description of the embodiments, the effects of the learning wind power generator of the present invention will be listed and described below.

1) Due to the large R surface and the weak impact structure of the rotary blade, the rotary blade is destroyed even if it is accidentally touched during rotation, so that it is safe to prevent injuries to children. (According to claim 1) 2) Since there is a long drainage port on the side surface of the housing on the rotation center side, it is possible to prevent failure due to rainwater even when deflected upward. (Claim 2
Related to

3) An anemometer can be constructed with a simple mechanism using the rotation of upward deflection to know the wind speed. (Regarding claim 3) 4) Since the relationship between the wind speed and the inclination of the housing can be remembered by using the anemometer, if the user gets used to it, the inclination of the upward deflection makes it possible to understand the outline of the wind speed from a long distance. (Related to claim 3)

5) Since it moves greatly in three dimensions, children's interest can be obtained. (Related to claim 1) 6) Since the positions of the housing and tail are devised, it can be made into a helicopter and attract children's interest. (Related to claim 4)

7) Since the unconventional counterweight and weight arm have been devised, it can be used as a special mission helicopter to increase children's enjoyment. (Related to claim 5) 8) Since there is no complicated mechanism such as variable pitch of the rotary blade, even a child can easily assemble. (Related to claim 1)

9) Since the structure is simple, it is easy to provide it as a model kit for learning at a low price. (Relating to claims 1, 2 and 3) 10) By assembling and completing the learning wind power generator of the present invention, a broad knowledge of science such as balance, lift, wind speed and power generation can be easily obtained. (Related to claims 1, 2 and 3)

11) Since the wind power generator of the present invention has a large three-dimensional movement and the entire shape changes from beginning to end, there is an additional merit that the crow is disliked when it is installed. (According to claim 1)

The present invention can provide an excellent learning wind power generator which enables children to learn clean energy while being able to learn science knowledge while having fun and learning.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a first conventional example.

FIG. 2 is an explanatory diagram of a second conventional example.

FIG. 3 is an explanatory view of a rotary blade of an embodiment (including (a cross-sectional view of a tip) (a cross-sectional view of a root))

FIG. 4 is an explanatory view of a structure and a shape in a breeze state of the embodiment ((side sectional view) (bottom external view))

FIG. 5 is an explanatory view of the structure and shape in a strong wind state according to the embodiment.

FIG. 6 is an explanatory diagram of an electric circuit according to an embodiment (including (output terminal circuit), (measurement circuit), (searchlight circuit), and (charging circuit)).

[Explanation of symbols] 1 rotor 2 generator 3 housing 4 tail 5 Horizontal rotating part 6 poles 7 Variable pitch mechanism 8 counterweight 9 weight arms 10 swing fulcrum 11 drain 14 guidelines 15 Wind speed display board 16 First external output terminal 17 Weak structure hole 19 R surface difference 20 cutting dent 21 Voltmeter 22 diode 23 Resistance 24 LED 25 lamps 27 NiCd battery 28 Second external output terminal 29 input terminals

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[Procedure amendment]

[Submission date] October 10, 2001 (2001.10.
10)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0030

[Correction method] Change

[Correction content]

First , the rotor 1 according to claim 1 will be described. The wind power generator of the present invention is basically of the upward deflection type. Since the rotor 1 is for learning, the length may be small. For example, the blade has a total length of 300 mm. Its wings 1
Considering safety, it is configured to be destroyed when it receives an impact. Therefore, in order to demand safety from the material, it is formed by molding with a weak impact resin. For example, it may be made of expandable polystyrene. Alternatively, as in the embodiment shown in FIG. 3, it is configured as a weak impact mechanism. For example, the maximum allowable wind speed of 30 m is set as an operation limit, and the rotating blade 1 is damaged when touched. Alternatively, the material and the mechanism are combined. The rotor 1 is constructed by these means, that is, a weak impact structure.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0034

[Correction method] Change

[Correction content]

Next, the drainage port 11 according to claim 2 will be described. A wind power generator that is exposed to wind and rain has a risk that rainwater may enter the inside of the housing 3 and cause a failure of the power generator 2 and an electric circuit. Therefore, sufficient consideration should be given to drainage. Therefore, as shown in FIG. 3, the center side of the upward deflection movement rotation (swing fulcrum 10
On the wall surface of the housing 3 which is always on the lower side (side), a long continuous drainage port 11 is provided for draining.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0036

[Correction method] Change

[Correction content]

Next, the wind speed display according to claim 3 will be described. Since it is for learning, it is preferable to be able to understand the outline of the relationship between power generation and wind speed. The power generation amount can be known by directly measuring the voltage of the generator ( see the voltmeter 21 in FIG. 6 described later ), but the wind speed has conventionally required a special anemometer. In the wind power generator of the present invention, the anemometer is configured so that the outline of the wind speed can be grasped at the deflection rotation position of the housing 3 depending on the wind speed by utilizing the characteristic of the upward deflection.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0041

[Correction method] Change

[Correction content]

Next, the shape of the housing according to claim 4 will be described. Children need to be always interested in things such as manufacturing, experiments and observations. The upward deflection method is of great interest because of its large motion, but the technology of this method includes aerodynamic lift. Therefore, in order to bring the interest closer to the lift, the casing 3 of the wind power generator is configured to have a shape that can estimate a helicopter that a child likes.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0042

[Correction method] Change

[Correction content]

Therefore, in the embodiment shown in FIG. 4, the case 3 of the wind power generator is constructed by imitating the shape of the front part of the case of the helicopter. For example, an elliptic sphere, an egg, a cocoon, or the like. Further, the tail 4 which is conventionally located on the vertical line behind the horizontal rotating portion 5 is located at a higher position, that is, on the approximately vertical line behind the housing 3 which is deflected upward. It should be installed at the position.
By doing this, it becomes a helicopter at a distance when it is deflected upward by a strong wind.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0043

[Correction method] Change

[Correction content]

Next, the counterweight according to claim 5 will be described. The counterweight 8 and the weight arm 9 are essential items for upward deflection. However, it is a rugged shape that it is attached, and it becomes a factor that impairs interest.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0050

[Correction method] Change

[Correction content]

With the searchlight, the input terminal 29 of the searchlight circuit is connected to the first external terminal 16. When knowing the output of the generator, input terminal of the measurement circuit to the first output terminal 16
Connect 29 . When filling, the first output terminal 16
The input terminal 29 of the charging circuit is connected to. The input terminal 29 of the searchlight circuit or the measurement circuit may be connected to the second output terminal 28 when the charge state is known.

[Procedure Amendment 8]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3] ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] July 8, 2002 (2002.7.8)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title of invention Wind power generator for learning

[Claims]

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a wind power generator,
In particular, the present invention relates to a suitable wind power generator for learning that makes children interested in science.

[0002]

2. Description of the Related Art Regarding the reference numerals of the drawings used in the description of the present invention, those having the same action and the like are numbered the same in order to avoid duplication of the description, and the respective directions used in the description are the same in the drawings. It is assumed that the left side is the front, the right side is the rear, the upper side is the upward direction, and the lower side is the downward direction, and the normal wind direction in the drawing is blowing from the left to the right.

As the wind power generator, an upwind type (a type in which the rotor blade always faces the wind) having a shape like a single-engine airplane in which a rotor blade is provided in the front is widely known.

This is designed so that the pitch of the rotor blades is automatically adjusted according to the strength of the wind force to control the rotation of the rotor blades and the generator so that no damage occurs. Since these automatic control devices are complicated and their generators are expensive, they are used only for large electric power and are not suitable for learning.

On the other hand, an upward deflection type wind power generator shown in FIG. 1 (which is an explanatory diagram of a conventional upward deflection type generator (including an upward deflection action explanatory diagram)) has been known for 20 years or less. (The inventor is Motohiro Yamada).

The wind power generator has a rotary blade 1 connected to a power generator 2 provided in a housing 3, and is freely rotatable in horizontal and vertical directions by a fulcrum 5 such as a horizontal fulcrum 5H and a vertical fulcrum 5V. The casing 3 is supported by the vertical tail 4 which is further rearward of the fulcrum 5 via an arm. Further, a weight arm 9 with a counterweight 8 is provided in front of the housing 3.

Therefore, in the case of a slight breeze, the rotary vane 1 faces the wind by the counterweight 8 so that it can be rotated even by a slight breeze by receiving a large area wind. Further, in strong winds, the rotor blade 1 is deflected upward by the lift force, and the rotor blade 1 becomes parallel to the wind to reduce the area hit by the wind to prevent excessive rotation. is there. Further, the shape of the vertical stabilizer 4 was selected so that the housing 3 faces the wind direction.

As described above, the upward deflection type wind power generator has a characteristic that it can be configured with a simple structure, but the movement of the casing 3 is three-dimensional (vertical rotation and horizontal rotation), and therefore the rotor blade 1 It wasn't used as a large power source.

[0009]

The learning-use wind power generator for understanding the science needs only to have a small structure because the structure and operation can be understood. Further, a device having a complicated device such as a pitch control device for the rotor blade 1 is too complicated to understand the structure and operation and is not suitable for children because it cannot follow. Furthermore, it is of utmost importance to keep children's interest in the wind power generator forever, such as the operation after manufacturing and installation.

[0010]

A housing 3 in the shape of a helicopter having a vertical tail 4, a rotor 1 connected to the housing 3 with a generator 2, and the housing 3 rotatable in three dimensions. And a fulcrum portion 5 are provided to configure an upward deflection type generator to be a learning wind power generator.

That is, by constructing a wind power generator by an upward deflection method with a simple structure, knowledge of science such as wind direction, wind meteorology, aerodynamics (lift), gravity balance, and physics such as power generation can be constantly maintained. It can be understood by the large and three-dimensional movements that change, and the shape of the helicopter makes it a favorite helicopter for children, which allows them to keep their interest.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The best mode of carrying out the present invention (how to carry out the invention) is shown in the drawings of an embodiment, that is, in FIG. Three
(It is explanatory drawing of an Example at the time of strong wind. (A detailed view of a searchlight circuit is included).) Based on it, the structure, operation, and effect of an Example are concretely demonstrated. Further, in order to avoid duplication of description, the parts having the same structures and functions as those of the conventional one are numbered the same and the description thereof is omitted.

A helicopter-shaped housing 3 having a vertical tail 4, a rotor 1 connected to the housing 3 with a generator 2, and a fulcrum portion 5 for allowing the housing 3 to rotate in three-dimensional directions. And are provided to configure an upward deflection type generator.

Although the rotary blade 1 is shown as two blades in FIGS. 2 and 3 for the sake of simplification of the drawings, the number of blades may be increased to four or six even in a slight breeze. It becomes easy to rotate.

Next, the supporting portion 5 of the embodiment is composed of a vertical supporting portion 5V for vertical rotation and a horizontal supporting portion 5H for horizontal rotation,
The housing 3 is configured so that the housing 3 can be freely rotated and tilted three-dimensionally by wind force or gravity.

In the embodiment, two types of support parts 5V and 5Hw are used.
Although the supporting portion 5 is configured by, the supporting portion 5 that moves three-dimensionally by one ball-shaped supporting point such as a tap socket found in a pen stand or the like may be configured.

A sled 10 and an accessory searchlight 13 are provided below the housing 3 to approximate a helicopter. The sled 10, the searchlight 13, and the generator 2 are configured so that the center of gravity of the housing 3 comes to the front of the fulcrum portion 5, and the rotor 1 is inclined forward when the wind is light.

When the tilting force is insufficient, accessories such as helicopters (missiles, machine guns, etc.) for helicopters may be loaded at the tip of the sled 10 and act as a counterweight 8. Further, a tilting force may be increased by using a spring such as a spring as an auxiliary.

In the upward deflection type generator, the rotor blade 1 is tilted by 90 ° from horizontal to vertical, but in this embodiment, as shown in FIG.
As shown in, the rotation range of the support portion 5 is limited to about 45 °.
The inclination is kept so that there is no discomfort close to how a helicopter flies.

Further, a supplementary explanation of the illustrated components will be given.
The searchlight 13 is provided in front of the housing 3, and an LED D is provided in the output circuit of the generator 2 as shown in FIG. 2 (detailed view of the searchlight circuit) so that the LED emits light at the generated output. (Although not shown, a small battery for charging may be provided in the vicinity.)

Further, as an accessory, a wind speed scale plate 15 and a wind speed indicator 14 are provided on the vertical support portion 5V, and the wind speed indicator 14 is changed according to the inclination angle of the housing 3 so that the wind speed can be read by the wind speed indicator plate 15. good. (For example, in Fig. 2, the wind speed is 0
10m / sec, in Fig. 3, the wind speed is marked as 30m / sec or more)

The rod-shaped pole 6 provided with the fulcrum portion 5 supporting the wind power generator at the tip is a column for attaching to a windy part such as a veranda of a house. On the rooftop, etc., it may be installed at the edge of the rooftop so that strong wind that rises along the wall surface of the building is received and it is easy to deflect upward.

When the tilted housing 3 cannot be made horizontal only by the lift of the rotor 1 in an area where the wind speed is low, the horizontal tail 7 is installed near the vertical tail 4 so that the wind blows behind the housing. It is configured to be pressed downward with.

Next, the operation of the learning wind power generator will be described. Even if the direction of the wind changes, the vertical tail 4 allows the helicopter-shaped housing 1 to be always located facing the wind.

Further, when the wind is light, lift of the rotor blade 1 is not generated, so that the rotor blade is tilted as shown in FIG. 2 and the wind is received over a wide area, so that the generator 2 can rotate at a low speed.

When the wind is strong, the rotor blades 1 rotate at high speed to generate lift, so that the helicopter-shaped casing 1 is horizontally moved as shown in FIG. Since the area of the wind received by the rotor 1 is reduced when it becomes horizontal, it is possible to prevent the rotor 1 and the generator 2 from rotating at an excessively high rotation speed, and a failure due to the excessive rotation of the generator 2 and the rotor 1 is caused. Can also be prevented.

As described above, in the embodiment, the rotary blade 1 according to the wind speed is used without using a complicated variable pitch control mechanism as in the related art.
It becomes possible to automatically control the rotation speed of the generator at the position. (Since the action is simple, its control action can be easily understood visually.)

Therefore, the output of the generator 2 generates a low output of low-speed rotation due to a breeze, and a constant high output of a predetermined rotation, which is almost saturated with a strong wind, is obtained. Therefore, the searchlight 13 connected to the output is provided. Can brightly illuminate the front of the helicopter-shaped casing 3 according to the wind speed, and the wind speed can be known by the brightness of the searchlight 13 even at night. Moreover, even with strong winds, there is no excessive rotation, so LE due to excessive output current
It also prevents damage to D D.

Further, when this learning wind power generator is attached to the rooftop of a school, the housing 3 has a helicopter shape, so that it attracts children's attention, and the direction and inclination of the helicopter (housing 3) causes the wind to move. You can observe the direction and wind speed even if they are far apart.

By removing the generator 2 from the configuration of the embodiment,
It can also be applied to making a small toy for a helicopter by using the fulcrum portion 5, the rotor blades 1, and the helicopter-shaped housing 3 and installing the toy in front of a fan or the like to enjoy the upward deflection motion.

[0031]

Since the effects have been described in detail in the description of the embodiments, the effects of the learning wind power generator of the present invention will be listed and described below.

Since it is an upward deflection type wind power generator, it is difficult to understand and there is no complicated variable pitch mechanism, so that even a child can easily understand its structure and operation.

Since the housing 3 has a helicopter shape, it not only attracts children's attention, but also makes it possible to easily analogize and understand actions such as lift and balance of aerodynamics.

The wind speed and wind direction of meteorology can be observed and understood from a distance by observing the direction and inclination of the helicopter (housing 3).

The unbalanced counterweight 8 and the weight arm 9 have been devised to be accessories such as a sled 10 and a searchlight 13 of a helicopter, which can increase children's enjoyment and generate power by wind even at night with the searchlight 13 or the like. You can know the action.

Since there is no complicated and complicated variable pitch mechanism, the structure is simple and the child can easily understand. Furthermore, maintenance is easy.

Since the structure is simple, it can be provided at a low price as a work model kit for learning.

As described above, the present invention can be used as a teaching material for easily understanding a wide range of science knowledge such as balance, lift, wind speed, and power generation.

The wind power generator of the present invention has a large three-dimensional movement, and the entire shape changes from beginning to end, which can attract children's interest. If installed further, there is an additional merit that crows dislike it.

As described above, the present invention can provide an excellent learning wind power generator that makes it easy to understand the knowledge of science and enables children to learn while having fun, even for children in the age when clean energy is required.

[Brief description of drawings]

FIG. 1 is an explanatory diagram (including an upward deflection action explanatory diagram) of a conventional upward deflection type generator.

FIG. 2 is an explanatory diagram of an example in a light wind.

FIG. 3 is an explanatory view (including a detailed view of a searchlight circuit) of an embodiment in a strong wind.

[Explanation of symbols] 1 rotor 2 generator 3 housing 4 vertical tail 5 fulcrum 5H horizontal fulcrum 5V vertical fulcrum 6 poles 7 Horizontal stabilizer 8 counterweight 9 weight arms 10 sledge 14 Wind speed pointer 15 Wind speed display board D LED

[Procedure 3]

[Document name to be corrected] Drawing

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3] ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] August 16, 2002 (2002.8.1)
6)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

In the embodiment, the support portion 5 is configured by a combination of the two types of support portions 5V and 5H, but the combination is not limited to this combination. For example, although not shown in the drawing, the fulcrum portion 5 that moves in three dimensions may be configured with one tap socket type fulcrum in which a ball is supported by a spherical socket as seen at a fulcrum of a tabletop pen stand.

Claims (5)

[Claims] 1. Rotation control of a rotary blade is constituted by an upward deflection method, a tip of the rotary blade has a large R surface, and the rotary blade is not damaged by strong wind during rotation, but is damaged immediately when touched by a person. A learning wind power generator characterized by being configured as a weak impact structure. 2. Even if the rotor blades are deflected from vertical to horizontal, water that has entered the housing containing the generator can be constantly drained.
2. The learning wind power generator according to claim 1, wherein a continuous long drainage port is formed on the wall surface of the casing that is always on the lower side on the center side of the upward deflection movement rotation. 3. A wind speed generator is provided with a wind speed display section provided with a wind speed scale and a pointer, and either the display section or the pointer is rotated in association with a casing which is rotated by upward deflection to express the wind speed. The learning wind power generator according to claim 1 or 2, characterized in that. 4. A wind turbine generator casing is formed by imitating the shape of the front portion of the helicopter casing, the tail fin is provided at a position rearward of the upward-deflecting casing, and the rotor is substantially horizontal with upward deflection. The wind power generator for learning according to claim 1, 2 or 3, wherein the wind power generator is configured to have a helicopter shape with a rotor, a housing, and a tail when it becomes 5. A helicopter for which the weight arm of the upward deflection type wind power generator is sled-shaped, and the shape of the counterweight is for the load of a special mission, and the outer shape of the wind power generator is a special mission. The wind power generator for learning according to claim 4, wherein the wind power generator for learning has a shape of