JP3145233U - Generator - Google Patents

Abstract

An object of the present invention is to provide a generator that efficiently converts kinetic energy of a fluid such as wind or water into electric energy.
A first rotating body 31 includes a coil 10 having a circular cross section inside a case 2 and a magnet 20 provided on the same rotation axis as the rotation axis of the coil 10. Obtains rotational energy from the wind and the coil 10 is driven to rotate, and the second rotating body 41 obtains rotational energy from the wind and drives the magnet 20 in a direction opposite to the rotational direction of the coil 10. And a second rotating mechanism 40 for rotating. And the rotating shaft of these 1st rotating bodies 31 and the rotating shaft of the 2nd rotating body 41 are provided along the flow direction of a wind.
[Selection] Figure 1

Description

  The present invention relates to a generator that converts kinetic energy of fluid such as wind and water into electric energy.

  As generators that generate electric power based on kinetic energy of fluid such as wind and water, there are those described in Patent Document 1 and Patent Document 2 below.

For example, in Patent Document 1 below, as shown in FIG. 5, a plurality of bevel gears 60 are provided in a case 2c, and a driven roller 61 is driven from a disk-shaped external rotating body 80 such as a bicycle wheel or a windmill. A generator 1c is disclosed that rotates a coil 10c and a magnet 20c in opposite directions by receiving a force (see FIG. 6). Further, in Patent Document 2 below, as shown in FIG. 7, the first driven roller 71 and the second driven roller 72 are brought into contact with each other so as to be symmetrical with the bicycle wheel, and the coil 10d and the magnet 20d are respectively connected. A generator 1d that generates a large induced electromotive force by rotating in the reverse direction is disclosed.
Japanese Utility Model Publication No. 5-78179 JP 2003-235223 A

  However, in such a conventional generator, when used as a generator that contacts a wheel of a bicycle or the like, from the viewpoint of energy conversion efficiency, the rotation of the wheel of the bicycle only becomes heavy, and energy conversion is performed. Efficiency does not improve. When such a generator is used as a wind turbine generator, for example, when a wind of 10 m / s hits the wind turbine and rotates the wind turbine and changes to 8 m / s on the downstream side thereof, the wind turbine generates 2 m / s. Wind kinetic energy is converted into electric energy. In this case, however, wind kinetic energy of 8 m / s cannot be converted into electric energy yet.

  Therefore, in order to solve the above problems, the present invention provides a generator that can efficiently convert kinetic energy of fluid into electric energy in a generator that generates electricity using a fluid such as wind or water. Objective.

  In order to solve the above-mentioned problems, the present invention provides a generator having a coil and a magnet in a case, generating an induced electromotive force by rotating the coil in one direction and rotating the magnet in the opposite direction to the coil. A first rotating body that rotates the coil in one direction by the kinetic energy of fluid such as wind and water, and a second rotating body that rotates the magnet in the direction opposite to the rotating direction of the coil by the kinetic energy of fluid. The rotation axis of the first rotating body and the rotation axis of the second rotating body are provided along the fluid flow direction.

  With this configuration, a part of the kinetic energy of the fluid is converted into the rotational energy of the first rotating body, and then the kinetic energy is converted into rotational energy by the second rotating body provided on the downstream side. Since it can be converted, the kinetic energy of the fluid can be efficiently converted into electric energy. Specifically, for example, as shown in FIG. 1, a wind of 10 m / s hits the first rotating body and changes to a wind speed of 8 m / s, and further 6 m / s of the second rotating body on the downstream side. The wind kinetic energy of 4 m / s can be converted into electrical energy.

  In such a device, the area of the rotating body provided on the downstream side of the flow is made larger than the area of the rotating body provided on the upstream side.

  If comprised in this way, the wind disturbed by the upstream 1st rotary body can be efficiently rotated with a large downstream rotary body.

  Further, the area of the downstream rotating body is increased in this way, and a swing mechanism for freely rotating the case along the flow direction is provided.

  If comprised in this way, since the air resistance by the large rotator on the downstream side becomes large, each rotator can always be set to the wind level without providing an arrow blade or the like.

  In the second device, the first rotating body that rotates the coil by the kinetic energy of one of the divided fluids, and the second rotating body that rotates the magnet by the kinetic energy of the other fluid that has been divided. Try to provide it.

  Even when configured in this way, each of the divided fluids can be applied to two rotating bodies and the coils and magnets can be rotated in the reverse direction, so that the kinetic energy of the fluid is efficiently converted into electrical energy. Thus, a large induced electromotive force can be generated.

  According to the present invention, in a generator that has a coil and a magnet in a case, generates an induced electromotive force by rotating the coil in one direction, and rotating the magnet in a direction opposite to the rotation direction of the coil, Since the first rotating body that rotates the coil in one direction by the kinetic energy of a fluid such as water and the second rotating body that rotates the magnet in the opposite direction to the coil by the kinetic energy of the fluid are provided. In particular, the kinetic energy of the fluid can be converted into electric energy.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a generator 1 showing a first embodiment of the present invention, FIG. 2 is a view showing a cross section AA in FIG. 1, and FIG. 3 is a view taken along line BB in FIG. It is the figure which showed the cross section. In the drawing, for easy understanding, the first rotating body 31 and the second rotating body 41 are shown smaller than actual dimensions.

  The generator 1 includes a coil 10 having a substantially cylindrical shape inside a case 2 and a magnet 20 that rotates in the same axial direction as the rotation axis of the coil 10, and is configured as a propeller. The coil 10 is connected to one rotating body 31, and the magnet 20 is connected to a second rotating body 41 configured in a propeller shape. And the kinetic energy of fluids, such as a wind, is obtained, the 1st rotary body 31 and the 2nd rotary body 41 are each rotated in a reverse direction, and the coil 10 and the magnet 20 which were provided in the case 2 are each reverse direction By rotating, a large induced electromotive force is generated. Hereinafter, the configuration of the generator 1 will be specifically described.

  The case 2 holds the coil 10 and the magnet 20 in a rotatable manner therein, and a first rotating mechanism that rotates the coil 10 through an open end 2a provided at the center of both ends having a columnar shape. 30 and the second rotating mechanism 40 for rotating the magnet 20 are held. A support member 5 that is made to stand on the ground via a swing mechanism 4 is attached to the lower end portion of the case 2. The swing mechanism 4 freely rotates the case 2 in the axial direction of the support member 5 and is configured to freely rotate by providing a bearing or the like (not shown) therein. The swing mechanism 4 is not limited to a mechanism that freely rotates by a bearing or the like, but may be provided with, for example, a yaw driving device that automatically controls the direction of the case 2 by measuring the wind direction and wind force. Good.

  The first rotating mechanism 30 held in the case 2 includes a first rotating body 31 that rotates by obtaining kinetic energy from the wind, and an iron core 11 having a substantially circular cross section as shown in FIG. , A shaft member 32 that connects the rotation center of the first rotating body 31 and the rotation center of the coil 10, and a separated commutator 33 that rectifies by contact with the brush member 3. The shaft member 32 is rotatably supported by the opening end 2a of the case 2 through the fixing bracket 34, and the coil 10 is allowed to rotate. The first rotating body 31 includes a plurality of propeller elements 31 a and a hub 31 b that connects the propeller elements 31 a and the shaft member 32, and flows along the rotation axis of the first rotating body 31. The first rotating body 31 is rotated in one direction by obtaining kinetic energy from the wind. The coil 10 includes an iron core 11 having a substantially circular cross section and a conducting wire 12, and is configured by winding the conducting wire 12 around the iron core 11, as shown in FIG. And each end part of the conducting wire 12 is connected to the separated two commutators 33, and the induced electromotive force is output to the outside via the two brush members 3 attached to the case 2. The commutator 33 is attached to the shaft member 32 via an insulating member, similarly to the commutator attached to a general motor. And by rotating the coil 10, a contact with the brush member 3 is switched alternately and an induced electromotive force is output from an external output terminal.

  The second rotating mechanism 40 includes a second rotating body 41 that rotates by obtaining kinetic energy from the wind, and a magnet 20 having a yoke 22 on a cylindrical dipole magnet 21 as shown in FIG. The shaft member 42 is configured to connect the rotation center of the second rotating body 41 and the rotation center of the magnet 20, and the shaft member 42 includes the opening end 2 a on the other side of the case 2 and the fixing bracket 34. For example, the magnet 20 is allowed to rotate. The second rotating body 41 includes a plurality of propeller elements 41 a configured relatively larger than the first rotating body 31, and a hub 41 b for connecting the propeller elements 41 a and the shaft member 42. Thus, the propeller element 41 a is rotated in the direction opposite to the rotation direction of the first rotating body 31. Note that if the second rotating body 41 is made larger than the first rotating body 31, the air resistance of the second rotating body 41 increases when the wind blows. The body 41 is positioned on the downstream side, and the rotation axes of the first rotating body 31 and the second rotating body 41 can always be aligned with the fluid flow direction.

  Next, the use state of the generator 1 configured as described above will be described.

  First, when such a generator 1 is installed, the support member 5 is made to stand on the ground, and the generator 1 is attached via the swing mechanism 4. As a mounting position of the generator 1, a relatively high place or a well-ventilated place is selected and attached.

  When the wind hits the generator 1 installed in this way, first, the wind hits the second rotating body 41 having a large contact area, and the case 2 rotates around the support member 5. At this time, since the air resistance of the second rotating body 41 is increased, the second rotating body 41 is positioned on the downstream side, and the first rotating body 31 is rotated on the upstream side. Then, the first rotating body 31 and the second rotating body 41 start to rotate in opposite directions, with the first rotating body 31 and the second rotating body 41 standing in the wind position as described above. At this time, the wind that has passed through the first rotating body 31 is weakened by the first rotating body 31, the case 2, etc., and then hits the second rotating body 41. Therefore, this time, the second rotating body 41 is rotated in the reverse direction by the relatively large propeller element 41a. As a result, the coil 10 and the magnet 20 rotate relatively in opposite directions, and generate a large induced electromotive force.

  As described above, according to the present embodiment, the coil 10 having a circular cross section inside the case 2 and the magnet 20 provided on the same rotation axis as the rotation axis of the coil 10 are provided, and the first rotation Since the body 31 and the second rotating body 41 are rotated in the opposite direction along the flow direction, the kinetic energy of the fluid can be efficiently converted into rotational energy, and the electrical energy can be efficiently converted from the rotational energy. Can be converted to For this reason, for example, as shown in FIG. 1, even if the first rotating body 31 is rotated by receiving a wind of 10 m / s and becomes a wind of 8 m / s on the downstream side, the downstream side is further reduced. Since the 2nd rotary body 41 can be rotated, when the wind speed is 6 m / s in the downstream, the energy conversion efficiency of 40% can be obtained.

  In the above embodiment, since the area of the second rotating body 41 provided on the downstream side is made larger than the area of the first rotating body 31 on the upstream side, the kinetic energy of the wind is effectively reduced. It can be converted into electrical energy.

  Furthermore, in this embodiment, since the swing mechanism 4 that freely rotates by a bearing or the like is provided, the air resistance of the relatively large second rotating body 41 is increased and wind is received. In this case, the rotational axes of the first rotating body 31 and the second rotating body 41 can always be set to the wind level.

  In addition, this invention is not limited to the said embodiment, It can implement in a various aspect.

  For example, in the above-described embodiment, the case where the fluid flows along the rotation axis direction of the first rotating body 31 and the second rotating body 41 has been described. However, the configuration is as in the second embodiment described below. You can also

  FIG. 4 shows a generator 1a according to the second embodiment. In the generator 1a in this embodiment, the same number is attached | subjected about the element which has the same structure as 1st embodiment. The generator 1a in this embodiment diverts the fluid flowing through the turbine, the exhaust duct, and the like through the flow divider 50, sprays the fluid on one side to the first rotating body 310 side, and the fluid on the other side to the second. Is sprayed from the opposite direction to the rotating body 410 side. At this time, the first rotating body 310 and the second rotating body 410 are different from the first embodiment in the flow direction of the fluid, and the wind hits in the vertical direction. It is said. In addition, regarding this shape, it is good also as a cup shape which receives a fluid. According to the second embodiment, each of the divided fluids is sprayed in the opposite direction to the first rotating body 310 and the second rotating body 410, so that the fluid is similar to the first embodiment. Can be efficiently converted into electrical energy.

  Moreover, in the said embodiment, although the direction of the 2nd rotary body 41 is made larger than the 1st rotary body 31, each 1st rotary body 31 and the 2nd rotary body 41 are made the same. The shape and the same size may be used, or the first rotating body 31 side may be enlarged. In addition to the size, the contact area with the fluid may be increased by increasing the number of propeller elements.

  Furthermore, in the said embodiment, although the shape of case 2 is made into the column shape, in order to make the flow of the fluid downstream, efficient, it is good also considering the shape of case 2 as a streamline.

  In addition, in the said embodiment, although demonstrated taking the example of the generator in wind power, it can also be used also as a generator which uses fluids, such as water, as a motive power.

  Moreover, in the said embodiment, although the coil 10 was provided in the 1st rotary body 31 side and the magnet 20 was provided in the 2nd rotary body 41 side, you may make it comprise contrary to this. That is, the magnet 20 may be provided on the first rotating body 31 side, and the coil 10 may be provided on the second rotating body 41 side. However, generally, the downstream flow is disturbed by the first rotating body 31 or the case 2 and the second rotating body 41 cannot be efficiently rotated. For this reason, it is preferable to ensure rotation on the upstream side as much as possible. For this reason, for example, the one with the smaller rotational moment in each rotating body can be provided on the upstream side. In this way, even if a weak wind blows, the upstream rotating body 31 with a small rotational moment can ensure the rotation reliably and quickly, and the induced electromotive force is efficiently generated. be able to. Since this rotational moment depends on the material and weight of the coil 10 and the material and weight of the magnet 20, it is preferable to select and use an appropriate material.

  Moreover, in the said embodiment, although the coil 10 and the magnet 20 are comprised as shown in FIG. 3, it is not restricted to this, The coil and the magnet of various shapes and a structure are employable.

The perspective view of the generator which shows 1st embodiment of this invention. State diagram showing the AA cross section in FIG. The state figure which showed the BB cross section in FIG. The perspective view of the generator which shows 2nd embodiment of this invention. The perspective view which shows the generator of patent document 1 The perspective view which shows the use condition in patent document 1 The perspective view which shows the generator of patent document 2

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1a ... Generator 2 ... Case 2a ... Open end 3 ... Brush member 4 ... Swing mechanism 5 ... Support member 10 ... Coil 11 ... Iron core 12 ... Conductor wire 20 ... Magnet 21 ... Cylindrical dipole magnet 22 ... Yoke 30 ... First rotating mechanism 31 ... First rotating body 31a ... Propeller element 31b ... -Hub 32 ... Shaft member 33 ... Commutator 34 ... Fixing bracket 40 ... Second rotating mechanism 41 ... Second rotating body 41a ... Propeller element 41b ... Hub 42 ... Shaft member 50 ... Diverter 60 ... Bevel gear 61 ... Rotation mechanism 71 ... First rotation mechanism 72 ... Second rotation mechanism 80 ... Disk-shaped external Rotating body

Claims (4)

  In a generator that has a coil and a magnet in a case and generates an induced electromotive force by rotating the coil in one direction and rotating the magnet in the opposite direction to the coil, the coil is generated by the kinetic energy of fluid such as wind and water. A first rotating body that rotates the magnet in one direction, and a second rotating body that rotates the magnet in a direction opposite to the rotating direction of the coil by the kinetic energy of the fluid. A generator comprising: a rotating shaft of a second rotating body provided along a fluid flow direction.   In a generator that has a coil and a magnet in a case and generates an induced electromotive force by rotating the coil in one direction and rotating the magnet in the opposite direction to the coil, the kinetic energy of one of the fluids separated A generator comprising: a first rotating body that rotates a coil by a second rotating body that rotates a magnet by the kinetic energy of the other fluid separated.   The generator according to claim 1, wherein the area of the rotating body provided on the downstream side in the fluid flow direction is larger than the area of the rotating body provided on the upstream side.   The generator according to claim 3, further comprising a swing mechanism that freely rotates the case along a fluid flow direction.

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