WO2010107082A1

WO2010107082A1 - Electric generator

Info

Publication number: WO2010107082A1
Application number: PCT/JP2010/054659
Authority: WO
Inventors: 厨林
Original assignee: Hayashi Kuriya
Priority date: 2009-03-19
Filing date: 2010-03-18
Publication date: 2010-09-23
Also published as: JP2010226799A

Abstract

Disclosed is a generator which has an extremely high generating ability, has a long service life, is compact, has a low production cost, and has a wide range of possible installation locations. The generator (1) is provided with a coil shaft (4), which includes coil disc rotors (41); a chassis (6), which includes a distal magnetic disc rotor (63), a proximal magnetic disc rotor (64), and a central magnetic disc rotor (65), which are disposed sandwiching the coil disc rotors (41); and a central gear (24), which inverts rotational driving force applied to the chassis (6) and transmits said force to the coil shaft (4).

Description

Generator

The present invention relates to a generator used for wind power generation or hydroelectric power generation.

As a conventional wind power generator, the one described in Patent Document 1 below is known. This power generation device includes an outer ring that can be rotated by an outer peripheral blade, and an inner ring that can be rotated in the opposite direction by an inner peripheral blade on the inner side thereof. Do. The generated electric power is output through a slip ring formed of a rotating conductor and a fixed brush.

JP 2003-129936 A

In the above power generator, although the power generation capacity can be increased by relative movement and enlargement of the outer ring or inner ring, such enlargement increases manufacturing and maintenance costs, shortens the service life, and installs them. The place is also limited. In addition, since electric power is taken out by a slip ring formed of a rotating conductor and a fixed brush, sparks, brush defects, etc. are relatively likely to occur, maintenance costs increase, output power decreases, and efficiency deteriorates. It becomes a factor of.

Accordingly, an object of the present invention is to provide a generator having an extremely high power generation capability, a long life, a small size, a low manufacturing cost, and a wide installation place.

To achieve the above object, the invention according to claim 1 is a coil-side rotating body including a coil, a magnet-side rotating body including a plurality of magnets arranged so as to sandwich the coil, and the coil-side rotating body. And a rotational driving force reversal transmission mechanism for reversing the rotational driving force applied to one of the magnet side rotating bodies and transmitting it to the other.

In addition to the above object, the invention described in claim 2 is the above invention, in order to achieve the object of achieving a longer life or downsizing, cost reduction, and ease of installation as a simpler mechanism. The rotational driving force reversal transmission mechanism is a gear or a gear group.

In addition to the above-mentioned object, the invention according to claim 3 makes the operation smooth without lubrication, reduces maintenance costs and reduces maintenance costs, and provides strength and life compared to metals. In order to achieve the object of providing a generator that can be reduced in weight and can be easily installed while being equivalent, in the above invention, at least one gear in the gear or the gear group is a thermosetting resin. It is characterized by being formed by molding a thermosetting resin molding material whose main component is a composite containing fluorinated resin.

In order to achieve the object of further improving the strength in addition to the above object, the invention according to claim 4 is the above invention, wherein the thermosetting resin molding material contains reinforcing fibers. To do.

According to a fifth aspect of the present invention, in addition to the above object, in order to achieve the object of improving the efficiency by further ensuring the operation, in the above invention, the coil side rotating body and / or the magnet side The rotating body is installed around a fixed shaft, and the central axis of the fixed shaft and the rotating shaft of the coil side rotating body and / or the magnet side rotating body are coaxial. To do.

According to a sixth aspect of the present invention, in addition to the above object, in order to achieve the object of efficiently increasing the amount of power generation by reducing the amount of magnets used, in the above invention, the coil is rotated on the coil side. A plurality of the magnets are arranged along the rotation axis direction of the body, and the magnets are arranged so as to sandwich each of the plurality of coils.

In addition to the above object, the invention described in claim 7 is the above invention, in order to achieve the object of taking out the electromotive force efficiently and stably, extending the life of the part from which the electric power is extracted, and reducing the maintenance cost. Furthermore, a slip ring for taking out the electric power generated in the coil is provided, and the slip ring includes a rotating conductor installed in the coil-side rotating body and a multipolar electrode in contact with the rotating conductor. It is characterized by this.

According to the present invention, the coil-side rotator and the magnet-side rotator are driven in reverse by the rotational driving force reversal transmission mechanism. Therefore, it is possible to realize a fast relative rotation between the coil and magnet with a simple mechanism, providing a generator with extremely high power generation capacity, long life, small size, low manufacturing cost, and wide installation space. There is an effect that can be done.

It is a section explanatory view of the generator concerning the present invention.

Hereinafter, examples of embodiments according to the present invention will be described with reference to the drawings as appropriate. In addition, the said form is not limited to the following example.

FIG. 1 is a central sectional view of a generator 1 according to the embodiment. The generator 1 includes a cylindrical main shaft 2 fixed to the ground or the like as appropriate through an arm or the like, and a main shaft 2 as a fixed shaft. The coil shaft 4 and the housing 6 are provided so as to be able to rotate (reverse) in different directions around each other.

That is, the coil shaft 4 is installed around the front end side (left side in FIG. 1) of the main shaft 2 via a plurality (two in FIG. 1) of first bearings 21. The central axis of the coil shaft 4 is coaxial with the central axis of the main shaft 2, and can be rotated around the central axis by the first bearing 21 with the central axis of the main shaft 2 as a rotation axis.

Around the coil shaft 4, a coil disk rotor 41 is attached which is wound with a conductive wire in a state of a disk having a hole in the center.

The coil disk rotor 41 is a coreless coil without a core, and is fixed in a state of being perpendicular to the rotation axis of the coil shaft 4. The inner diameter of the central hole of the coil disk rotor 41 is the same as the outer diameter of the coil shaft 4, and the coil shaft 4 is passed through the central hole of the coil disk rotor 41. In the coil disk rotor 41, the conductive wire includes a loop extending from the outer side of the central hole to the outer periphery along a plane substantially orthogonal to the longitudinal direction of the coil shaft 4, and such loops are stacked around the coil shaft 4. It is wound like so. A plurality of (two in FIG. 1) coil disk rotors 41 are provided, and are arranged so as to be aligned along the longitudinal direction (rotational axis direction) of the coil shaft 4 (multi-stage coil disk rotor 41 is provided. ). In addition, the coil shaft 4 thru | or each coil disc rotor 41 comprise a coil side rotary body.

Furthermore, an inner gear 42 having teeth arranged on the outer periphery is provided on the tip side of the coil shaft 4. The inner gear 42 meshes with the intermediate gear 24 serving as a rotational driving force reversal transmission mechanism, which is rotatably provided to the flange 22 at the tip end portion of the main shaft 2 via the second bearing 23. The intermediate gear 24 as a rotational driving force reversal transmission mechanism is a gear having teeth arranged on the outer periphery thereof, and rotates around a protruding portion 25 protruding along the longitudinal direction of the main shaft 2 in the flange 22. Further, a plurality of intermediate gears 24 (two in the vertical direction in FIG. 1) are installed.

On the other hand, the housing 6 is arranged so as to cover the front end side of the main shaft 2 and the coil shaft 4 (coaxially with these). The housing 6 is arranged around the main shaft 2 via the third bearings 61 respectively installed on the distal end side of the main shaft 2 (from the flange 22) and the proximal end side (right side in FIG. 1) of the coil shaft 4 (main shaft 2). It is installed so as to be rotatable (with the same axis as the central axis of the shaft 2 as the rotation axis).

An outer gear 62 that meshes with each intermediate gear 24 is fixed to the front end side inside the housing 6. The outer gear 62 is a cylindrical gear having teeth formed on the inner surface. One or more intermediate gears 24 that are external teeth are arranged between the external gear 62 that is internal teeth and the internal gear 42 that is external teeth, and the intermediate gear 24 is interposed between the external gear 62 and the internal gear 42. As a result, the outer gear 62 and the inner gear 42 are reversed. It can be considered that the outer gear 62, the intermediate gear 24, and the inner gear 42 constitute a rotational driving force reversal transmission mechanism.

The outer gear 62, the intermediate gear 24, and the inner gear 42 are each made of resin and formed by molding a thermosetting resin molding material mainly composed of a composite including a thermosetting resin and a fluororesin (composite Molded product). The thermosetting resin molding material preferably contains reinforcing fibers. This composite has a structure in which the thermosetting resin covers all or part of the surface of the fluororesin particles, a particle structure in which both resins are combined microscopically, or a fluororesin on the surface of the thermosetting resin particles. Does not include a structure in which the particles are merely electrostatically assembled, including a structure in which the thermosetting resin is fused on the surface of the fluororesin particles.

The thermosetting resin is solid at room temperature in an uncured state and can be dispersed in water, and preferably has a hydrophilic group such as a phenol resin. On the other hand, it is preferable to use a tetrafluoroethylene polymer as the fluororesin, particularly in view of low friction to improve sliding without lubrication, but hexafluoropropylene, perfluoro (alkyl vinyl ether), vinylidene. A polymer or copolymer of monomers selected from fluoride and vinyl fluoride, or a copolymer of these monomers and ethylene may be used. The thermosetting resin is preferably 10 or 20 weight percent or more and 60 or 80 weight percent or less with respect to the total mass of the thermosetting resin molding material. The fluororesin is preferably 1, 3 or 5 weight percent or more and 30 or 40 weight percent or less based on the total mass of the thermosetting resin molding material. Furthermore, glass fiber, carbon fiber, metal fiber, ceramic fiber, polyamide fiber, polyester fiber, or the like can be used as the reinforcing fiber.

The thermosetting resin molding material is preferably produced by dispersing and making a composite made of a thermosetting resin and a fluororesin (and reinforcing fibers) in water, and molding this by a known method. An outer gear 62, an intermediate gear 24, and an inner gear 42 are formed.

Further, a tip side magnet disk rotor 63 is attached to a portion inside the housing 6 and facing a tip side surface of the tip side coil disk rotor 41. The tip side magnet disk rotor 63 is a disc-shaped magnet having a hole in the center, and is, for example, a rare earth magnet (neodymium magnet). The tip side magnet disk rotor 63 is fixed perpendicularly to the rotation axis of the housing 6.

Further, a base end side magnet disk rotor 64 that is the same as the front end side magnet disk rotor 63 is provided on the inner side of the housing 6 and facing the base end side surface of the base end side coil disk rotor 41. It is attached.

Also, an intermediate magnet disk rotor 65 which is the same as the tip side magnet disk rotor 63 except for being thicker is attached between the coil disk rotors 41 inside the housing 6. The intermediate magnet disk rotor 65 is fixed to the inside of the housing 6 via a ring-shaped inner frame 66, and is installed by the inner frame 66 so as to enter between the coil disk rotors 41 from the outside. Arranged between the disk rotors 41.

In the tip side magnet disk rotor 63, the base end side magnet disk rotor 64, and the intermediate magnet disk rotor 65, the directions of the magnetic poles are aligned with each other. For example, if the proximal end side of the distal end side magnetic disk rotor 63 is an S pole, the distal end side of the intermediate magnet disk rotor 65 is an N pole and the proximal end side is an S pole, and the distal end side of the proximal end side magnet disk rotor 64 is an N pole. is there.

Furthermore, a cylindrical coupling 67 is fixed to the tip of the housing 6. A rotating shaft (not shown) that generates a rotational driving force is connected to the coupling 67, and the rotational driving force is received by the coupling 67. Examples of the rotating shaft include those relating to horizontal or vertical windmills and water turbines.

On the other hand, a slip ring 44 including a conductor band 43 and an electrode holder 27 is disposed at the base end portion of the coil shaft 4 or around it. That is, a conductor band 43 that is a band-like and ring-shaped conductor is fixed to the outer surface of the coil shaft 4, and an electrode holder 27 having a divided electrode 26 that contacts the conductor band 43 is installed on the outer periphery of the main shaft 2. Has been. The electrode holder 27 is installed via a skirt 28 fixed around the main shaft 2. The conductor band 43 is electrically connected to each coil disk rotor 41 by a conducting wire passing through the coil shaft 4 (not shown).

The divided electrode 26 of the electrode holder 27 is a multipolar electrode in which a plurality of electrodes are provided, and may be formed by dividing a lump of electrodes, or by forming a plurality of electrodes and electrically connecting them to each other. May be. The split electrode 26 is electrically connected to the power output side, and is connected to the AC power transmission system via, for example, a rectifier or an inverter. Each electrode of the divided electrode 26 is connected in parallel to the power output side. A plurality of divided electrodes 26 and electrode holders 27 (two in the vertical direction in FIG. 1) are arranged.

Such a generator 1 operates mainly as described below.

That is, when a rotational driving force is applied to the coupling 67, the housing 6 rotates around the third bearing 61, and the distal end side magnetic disk rotor 63, the proximal end side magnetic disk rotor 64, and the intermediate magnetic disk integrated therewith. The rotor 65 also rotates.

Further, the outer gear 62 integrated with the housing 6 also rotates, and each intermediate gear 24 meshed with the outer gear 61 rotates around the second bearing 23. Each intermediate gear 24 rotates the meshed inner gear 42 or the coil shaft 4 integrated therewith in the direction of rotation opposite to the housing 6 around the first bearing 21. The coil shaft 4 rotates each coil disk rotor 41 integral therewith in a direction opposite to the casing 6 or the distal end side magnetic disk rotor 63, the proximal end side magnetic disk rotor 64, and the intermediate magnet disk rotor 65.

That is, each intermediate gear 24 reverses the rotational driving force in the casing 6 or the distal end side magnetic disk rotor 63, the proximal end side magnetic disk rotor 64, and the intermediate magnet disk rotor 65, thereby causing the coil shaft 4 or each coil disk rotor 41 to move. introduce.

Each coil disk rotor 41 rotates in the opposite direction between the rotating front end side magnetic disk rotor 63 and the intermediate magnet disk rotor 65 or between the proximal end side magnetic disk rotor 64 and the intermediate magnet disk rotor 65, Relatively fast with respect to the side magnet disk rotor 63, the base end side magnet disk rotor 64, and the intermediate magnet disk rotor 65 (at a speed twice as high as the speed when assuming that these are fixed to the main shaft 2) )Rotate. Each of the coil disk rotors 41, the distal end side magnetic disk rotor 63, the proximal end side magnetic disk rotor 64, and the intermediate magnet disk rotor 65 are perpendicular to the central axis of the main shaft 2 and the rotation axis of the coil shaft 4 and the casing 6. Since they are parallel to each other, they do not contact each other even during rotation. When three or more coil disk rotors 41 are provided, the coil disk rotors 4 other than both ends rotate between the intermediate magnet disk rotors 65.

The rotation of each coil disk rotor 41 and the distal end side magnetic disk rotor 63, the proximal end side magnetic disk rotor 64, and the intermediate magnet disk rotor 65 causes the distal end side magnetic disk rotor 63, the proximal end side magnet disk rotor 64, and the intermediate magnet to rotate. Each coil disk rotor 41 rotates relative to the magnetic field formed by the disk rotor 65. Due to such relative rotation, the magnetic field changes within the loop of the conducting wire of each coil disk rotor 41, and an electromotive force is generated in each coil disk rotor 41. The electromotive force is taken out by the slip ring 44. That is, the electromotive force is transmitted to the conductor band 43 that rotates integrally with the coil shaft 4 and is taken out by the fixed divided electrode 26 in contact therewith.

The above generator 1 includes a coil shaft 4 including a coil disk rotor 41, and a front end side magnetic disk rotor 63, a base end side magnetic disk rotor 64, and an intermediate magnet disk rotor 65 disposed so as to sandwich the coil disk rotor 41. A housing 6 and an intermediate gear 24 that reverses the rotational driving force applied to the housing 6 and transmits it to the coil shaft 4 are provided.

In the generator 1, when a rotational driving force is applied to the casing 6, the coil gear rotor 41, the front end side magnetic disc rotor 63, the base end side magnetic disc rotor 64, and the intermediate magnet disc rotor 65 are moved by the intermediate gear 24. Are inverted from each other. By such reversal, each coil disk rotor 41 rotates at a relatively high speed with respect to the distal end side magnetic disk rotor 63, the proximal end side magnetic disk rotor 64, and the intermediate magnet disk rotor 65. Then, electric power is generated in each coil disk rotor 41 by such relative rotation.

Therefore, even when the rotational speed related to the rotational driving force is relatively slow, such as when using natural force such as wind power generation, each coil disk rotor 41 can be rotated at a relatively high speed. The power generation efficiency can be improved. Furthermore, even when the rotational speed related to the rotational driving force is low and the coil is rotated with respect to the magnet at this rotational speed, sufficient electric power is not generated in the coil and power generation is not possible. In some cases, the generator 1 that performs relative high-speed rotation may be able to generate power, and this can further improve power generation efficiency by enabling generation from ultra-low-speed rotation. In addition, since such relative rotation is executed by reversal by the intermediate gear 24, relative high-speed rotation can be realized with a simple configuration and a long life can be achieved, and the apparatus can be operated while improving efficiency. It can be made compact and low cost, and the place where it can be installed can be expanded. By executing such relative rotation by reversal by the intermediate gear 24, it is possible to generate power only by inputting the rotational driving force only to the housing 6, which also contributes to the simplification and downsizing of the configuration. .

Further, since the intermediate gear 24 (the outer gear 62 and the inner gear 42) is formed by molding a thermosetting resin molding material mainly composed of a composite containing a thermosetting resin and a fluororesin, The intermediate gear 24 has a high strength equivalent to that of a metal, but can be reduced in weight and imparted with low friction, and the generator 1 can be reduced in weight to increase the place where it can be installed. The life of the drive force reversal transmission mechanism can be extended, and the rotational drive force reversal transmission mechanism can be operated smoothly without lubrication to improve operation reliability or efficiency and reduce maintenance costs. it can. Furthermore, when the reinforcing fiber is included in the thermosetting resin molding material, the intermediate gear 24 (the outer gear 62 and the inner gear 42) can have higher strength.

Furthermore, the coil shaft 4 and the housing 6 are installed around the fixed main shaft 2, and the main shaft 2, the coil shaft 4 and the housing 6 are coaxial, so the coil shaft 4. The housing 6 can be installed compactly while ensuring reliable and smooth operation.

In addition, a plurality of coil disk rotors 41 are arranged along the rotational axis direction of the coil shaft 4, and the distal end side magnetic disk rotor 63, the proximal end side magnetic disk rotor 64, and the intermediate magnet disk rotor 65 are arranged as coil coils. It arrange | positions so that each of the rotor 41 may be pinched | interposed (multi-stage of a coil and a magnet). Therefore, the power generation amount per generator 1 can be increased, and in addition to the increase in the power generation amount, only the coil disk rotor 41 and the intermediate magnet disk rotor 65 can be installed to achieve a compact size. Magnetic power can be applied to the front and rear coil disk rotors 41 by the single intermediate magnet disk rotor 65, and the amount of magnets used can be reduced. The number of magnets used (amount used) can be reduced as the number of coils increases. For example, compared to the case where one set (24 pieces) of magnets is installed on each side of each coil disk rotor 41. In the present invention, it can be reduced by about 25 percent (%) in two stages (two sets of magnets in the center are shared by one set), reduced by about 32% in three stages, and reduced by about 40% in five stages.

Further, a slip ring 44 for taking out the electric power generated in each coil disk rotor 41 is provided, and the slip ring 44 includes a rotating conductor 43 installed on the coil shaft 4 and a divided electrode 26 in contact with the rotating conductor 43. ing. Therefore, even when the coil shaft 4 is slightly inclined with respect to the main shaft 2 and the divided electrode 26 is inclined with respect to the conductor band 43, at least one of the divided electrodes 26 is in contact with the conductor band 43. The power can be reliably taken out even when the coil shaft 4 is rotating, the electrode is instantaneously completely separated from the conductor band 43, and a spark is generated, and the power is lost or divided. The situation where the electrode 26, the conductor band 43, etc. are damaged can be prevented. Further, in a normal state, the plurality of electrodes of the divided electrode 26 come into contact with the conductor band 43, and the resistance value in taking out the power can be reduced and the efficiency can be improved. Further, even if the pressing of the divided electrode 26 against the conductor band 43 is relatively loose, power can be reliably taken out, and the wear of the divided electrode 26 and the conductor band 43 can be prevented and the life of the slip ring 44 can be extended. it can. Furthermore, since the relative speed is increased by reversing the coil shaft 4 and the housing 6, sufficient power generation can be performed even when the rotational driving force is relatively low. The speed becomes low and the life of the slip ring 44 is extended (for example, the life of about 10 to 20 times that of the conventional one can be expected).

[Example of change]
In addition, the other form of this invention which mainly consists of changing the said form is illustrated.

回転 Apply rotational drive force to the coil shaft. Alternatively, the coil disk rotor is fixed to the housing, and the magnet disk rotor is disposed on the shaft between the main shaft and the housing. The number, position, etc. of various bearings are changed such that the number of first bearings is one or three or more, or all the third bearings are arranged on the main shaft.

One coil disk rotor and two magnetic disk disks, the front end side magnetic disk and the base end side magnetic disk, or three or more coil disk rotors, the magnetic disk rotor as the front end side magnetic disk rotor and the base end side magnet disk The number of coil stages is changed, for example, the number of intermediate magnet disk rotors is one less than that of the disk rotor and coil disk rotor. For the coil, provide a core or change the way the conductor is wound. In addition, magnets having different shapes or properties may be used as the distal end side magnetic disk rotor and the proximal end side magnetic disk rotor, the same magnet may be used as each magnetic disk rotor, or some of the plurality of coil disk rotors may be A coil disk rotor with a different shape or winding method is used. The inner frame is omitted for the installation of the intermediate magnetic disk rotor.

The shape of various members is changed, such as using a polygonal plate with a hole in the center as a coil disk rotor or various magnetic disk rotors. The number of intermediate gears is one or more than three, or an odd number of gear trains or a plurality of such gear trains are arranged to connect the outer gear and the inner gear, or revolve with rotation. (Planetary gear). The material of various members is changed such that at least one of the housing, the various shafts, and the bearings is the composite molded product.

1 Generator 2 Main shaft (fixed shaft)
4 Coil shaft (coil side rotating body)
6 Case (Magnet side rotating body)
24 intermediate gear (rotational driving force reversal transmission mechanism)
26 Divided electrode (multipolar electrode)
41 Coil disk rotor (coil)
42 Inner gear 43 Rotating conductor 44 Slip ring 62 Outer gear 63 Tip side magnet disk rotor (magnet)
64 Proximal magnet disk rotor (magnet)
65 Intermediate magnet disk rotor (magnet)

Claims

A coil side rotating body including a coil;
A magnet-side rotating body including a plurality of magnets arranged so as to sandwich the coil;
A generator comprising: a rotation driving force reversal transmission mechanism that reverses a rotation driving force applied to one of the coil side rotation body and the magnet side rotation body and transmits the rotation driving force to the other.
The generator according to claim 1, wherein the rotational driving force reversal transmission mechanism is a gear or a gear group.
The gear or at least one gear in the gear group is formed by molding a thermosetting resin molding material whose main component is a composite containing a thermosetting resin and a fluororesin. The generator according to claim 2.
The generator according to claim 3, wherein the thermosetting resin molding material contains reinforcing fibers.
The coil-side rotating body and / or the magnet-side rotating body is installed around a fixed shaft,
The central axis of the fixed shaft and the rotation axis of the coil-side rotator and / or the magnet-side rotator are coaxial, respectively. Generator.
A plurality of the coils are arranged along the rotation axis direction of the coil-side rotating body,
The generator according to any one of claims 1 to 5, wherein the magnet is arranged so as to sandwich each of the plurality of coils.
Furthermore, a slip ring for taking out the electric power generated in the coil is provided,
The slip ring
A rotating conductor installed on the coil-side rotating body;
The generator according to any one of claims 1 to 6, further comprising a multipolar electrode in contact with the rotating conductor.