WO2014010104A1

WO2014010104A1 - Power generation device

Info

Publication number: WO2014010104A1
Application number: PCT/JP2012/071820
Authority: WO
Inventors: 清司合津; 弘元渡部; 久幸佐藤
Original assignee: Aizu Kiyoshi; Watanabe Hiroyuki; Sato Hisayuki
Priority date: 2012-07-11
Filing date: 2012-08-29
Publication date: 2014-01-16
Also published as: JP2014018036A

Abstract

[Problem] To configure a power generation device so that the power generation device efficiently generates energy, the power generation device being provided with a rotating body to which permanent magnets are provided and also with electromagnets facing the permanent magnets. [Solution] A power generation device comprises: a rotor (3) provided with a rotating body (16), to the center portion of which a rotating shaft (15) is connected, and also with permanent magnets (17) which are embedded in the rotating body (16) along the circumferential direction; and a stator (4) comprising iron cores (45) having a C-shaped cross-section, the iron cores (45) each having formed therein a magnet passage gap (47) through which the permanent magnets (17) embedded in the rotating body (16) pass, the stator (4) also comprising coils (46) each wound multiple times around each of the iron cores (45) in a superposed manner.

Description

Power generator

The present invention relates to a power generation device, and more particularly to a power generation device capable of efficiently generating energy.

2. Description of the Related Art Conventionally, an electric motor as a power generation device, for example, supplies direct current or alternating current power to generate an electromagnetic force in an electromagnet, and causes this electromagnetic force to follow a rotating body in which a permanent magnet is embedded to generate a magnetic attractive force. There are those that rotate the rotating body.
As such a power generation device, there are the following prior art documents.

JP 2007-306700 A

In the magnetic power generation device described in Patent Document 1, a plurality of permanent magnets are arranged in the circumferential direction at the peripheral portion of the rotating body connected to the rotating shaft in the housing, and are opposed to the permanent magnet around the rotating body. Thus, a plurality of electromagnets are arranged.

However, conventionally, in the power generation device, when the electromagnet is disposed around the rotating body in which the permanent magnet is embedded, only one end surface of the electromagnet is opposed to the one end surface of the permanent magnet. The electromagnetic force is relatively small. Therefore, it is difficult to smoothly rotate the rotating body, and energy cannot be generated efficiently.

Therefore, an object of the present invention is to provide a power generation device that efficiently generates energy.

According to the present invention, in a power generation device in which a rotating body having a permanent magnet embedded therein is provided and an electromagnet is disposed with respect to the permanent magnet, a rotating body having a rotating shaft connected to a central portion, and a circumference around the rotating body A rotor having a plurality of permanent magnets embedded in a direction is provided, and a C-shaped iron core having a magnet passage gap through which the permanent magnet passes when the rotating body rotates, and the iron core A stator provided with a coil wound by being polymerized a plurality of times is provided.

In the present invention, since the permanent magnet embedded in the rotor's rotor passes through the magnet passage gap of the stator's iron core, the rotor can be smoothly rotated to generate energy efficiently.

FIG. 1 is an exploded view of the power generator. Example 1 FIG. 2 is a plan view of the power generator. Example 1 FIG. 3 is a sectional view of the power generator. Example 1 FIG. 4 is a plan view of the upper plate. Example 1 FIG. 5 is a side view of the upper plate of FIG. Example 1 FIG. 6 is a plan view of the rotating body. Example 1 FIG. 7 is a side view of the rotating body of FIG. Example 1 FIG. 8 is a plan view of another rotating body. Example 1 FIG. 9 is a side view of another rotating body of FIG. Example 1 FIG. 10 is a front view of the iron core. Example 1 FIG. 11 is a side view of the iron core of FIG. Example 1 FIG. 12 is a front view of the bracket. Example 1 FIG. 13 is a bottom view of the bracket of FIG. Example 1 FIG. 14 is a side view of the bracket of FIG. Example 1 FIG. 15 is a schematic configuration diagram when the power generation device is used as an electric motor. Example 1 FIG. 16 is a schematic configuration diagram of a power generation device using solar energy. (Example 2) FIG. 17 is a schematic configuration diagram when a power generation device using solar energy is used as a generator. (Example 3) FIG. 18 is a configuration diagram of the power generation device. (Example 4) FIG. 19 is an exploded view of the power generator. (Example 4)

The present invention realizes the purpose of generating energy efficiently by forming a magnet passage gap in the stator through which a permanent magnet embedded in the rotor of the rotor passes.

1 to 15 show Embodiment 1 of the present invention.
1 to 3, reference numeral 1 denotes a power generator.
The power generation device 1 is used as an electric motor, for example, and includes a rotor 3 and a stator 4 in a frame body 2.
The frame 2 has an upper plate 5 as one side plate and a lower plate 6 as the other side plate arranged at a predetermined distance in the vertical direction, and corresponding four corner portions of the upper plate 5 and the lower plate 6 respectively. Are connected by four frame support members 7 (only one is shown in FIG. 1).
As shown in FIGS. 4 and 5, the upper plate 5 has a predetermined thickness and is formed in, for example, a square shape. Since the lower plate 6 is configured in the same manner as the upper plate 5, the detailed description thereof is omitted here.

The upper end portion of the frame support member 7 includes a threaded portion 8, and the threaded portion 8 is inserted into the upper corner mounting hole 9 formed in the upper plate 5 from below, and the mounting nut 10 is threaded from above the upper plate 5. By being tightened to 8, it is attached to the upper plate 5.
The lower end portion of the frame support member 7 includes a screw hole 11 inside from the lower end surface, and is disposed in contact with the upper surface of the lower plate 6. The lower end portion of the frame support member 7 is inserted from below into the lower corner mounting hole 14 formed on the lower plate 6 at the upper end of the screw rod 13 having the vibration isolating pad 12 at the lower end and screwed into the screw hole 11. Thus, it is attached to the lower plate 6.

As shown in FIGS. 1, 3, 6, and 7, the rotor 3 includes a rotating body 16 having a rotating shaft 15 coupled to a central portion, and a plurality of permanent members embedded in the rotating body 16 in the circumferential direction. It consists of a magnet 17.
The rotating body 16 is made of a nonmagnetic material, and has a shaft mounting hole 18 formed in the central portion.
The rotating shaft 15 is inserted into a shaft insertion hole 20 formed in a shaft support member 19 fitted in the shaft mounting hole 18 of the rotating body 16.
As shown in FIG. 3, four bolt insertion holes 21 are formed in the shaft support member 19 at equal intervals in the circumferential direction. As shown in FIG. 1, the shaft support member 19 can rotate the rotating shaft 15 by fixing the fixing bolt 22 inserted into the bolt insertion hole 21 from above into the screw hole 23 of the rotating body 16. I support it.

As shown in FIGS. 6 and 7, the rotating body 16 is formed in a disk shape with a predetermined thickness, and the shaft mounting hole 18 is formed in the central portion, and as the permanent magnets 17, for example, four

permanent magnets

17, 17, 17, and 17 are embedded in circular

magnet embedding holes

24, 24, 24, and 24 that are formed by penetrating the peripheral portion at equal intervals in the circumferential direction. The permanent magnet 17 has, for example, the same thickness as the rotating body 16 and is formed in a circular shape with a predetermined diameter, and is embedded in the magnet embedding hole 24 of the rotating body 16.
As shown in FIGS. 8 and 9, the embedded structure of the permanent magnet 17 in the rotating body 16 is the first magnet embedded with the same diameter D1 as the permanent magnet 17 at a depth T from the upper surface of the rotating body 16 in the upper part. In addition to forming the hole 25A, the magnet mounting portion 25B can be formed internally with an inner diameter D2 smaller than the inner diameter D1 at the lower portion, and the permanent magnet 17 can be stably attached to the magnet mounting portion 25B from above.

An upper end portion as one end portion of the rotation shaft 15 is rotatably attached to the upper plate 5 by an upper attachment portion 26.
As shown in FIGS. 1 and 3, the upper mounting portion 26 includes an upper bearing holder 27 and an upper bearing fixing collar 28, and rotatably supports the rotating shaft 15.
As shown in FIG. 3, the upper bearing holder 27 is formed with a shaft insertion hole 29 through which the rotary shaft 15 is inserted at the center portion, and is attached to the lower surface of the upper plate 5 and at the center portion of the upper plate 5. It is inserted into the hole 30.
The upper bearing holder 27 forms four screw holes 31 at equal intervals in the circumferential direction. The upper bearing holder 27 has four holder mounting bolts 33 inserted from above into four holder mounting holes 32 formed at equal intervals in the circumferential direction around the upper mounting hole 30 of the upper plate 5. It is attached to the upper plate 5 by screwing into the upper plate 5 respectively.
The upper bearing fixing collar 28 has a shaft insertion hole 34 through which the rotary shaft 15 is inserted at a central portion, and is attached in contact with the upper surface of the upper bearing holder 27.

The lower end portion as the other end side of the rotation shaft 15 is rotatably attached to the lower plate 6 by the lower attachment portion 35. The lower mounting portion 35 is configured in the same manner as the upper mounting portion 26 described above.
As shown in FIG. 3, the lower mounting portion 35 includes a lower bearing holder 36 and a lower bearing fixing collar 37, and rotatably supports the rotating shaft 15.
The lower bearing holder 36 is formed with a shaft insertion hole 38 through which the rotary shaft 15 is inserted in a central portion, and is inserted into a lower mounting hole 39 that is in contact with the upper surface of the lower plate 6 and formed in the central portion of the lower plate 6. Is done.
The lower bearing holder 36 is formed with four bolt insertion holes 40 at equal intervals in the circumferential direction. As shown in FIG. 3, the lower bearing holder 36 is a holder mounting screw in which holder mounting bolts 41 inserted into the bolt insertion holes 40 are formed at equal intervals in the circumferential direction around the lower mounting holes 39 of the lower plate 6. It is attached to the lower plate 6 by being screwed into the hole 42.
The lower bearing fixing collar 37 is attached in contact with the upper surface of the lower bearing holder 36 while forming a shaft insertion hole 43 through which the rotary shaft 15 is inserted at a central portion.

The stator 4 includes a plurality of electromagnets 44 arranged at locations corresponding to the permanent magnets 17 of the rotating body 16.
The electromagnets 44 are arranged to face the four permanent magnets 17 of the rotating body 16. In other words, in the first embodiment, for example, the four electromagnets 44 are arranged at equal intervals in the circumferential direction around the rotating body 16 and are fixed to the frame body 2.
The electromagnet 44 is configured by winding a coil 46 around an iron core 45, and generates electromagnetic force when DC or AC power is supplied.
As shown in FIGS. 10 and 11, the iron core 45 is made of a magnetic material, is formed in a C-shaped cross section, and forms a magnet passage gap 47 through which the permanent magnet 17 embedded in the rotating body 16 passes. ing. The magnet passage gap 47 is formed at a predetermined distance S in the vertical direction so as to pass the permanent magnet 17 of the rotating body 16 rotating in the horizontal direction.
The iron core 45 is composed of a plurality of (for example, 64) iron plates (plate thickness of about 0.5 mm) 48 as a magnetic material and is integrally formed by a plurality of caulking pins 49, and is opposite to the magnet passage gap 47. A central portion 50 oriented in the vertical direction, an upper portion 51 as one side continuous with one side of the central portion 50, and a lower side portion as another side continuous with the other side of the central portion 50 52. Further, the electromagnet 44 is configured with a predetermined permeability and a predetermined cross-sectional area so as to generate a required electromagnetic force.

The iron core 45 is formed with an upper flange 53 and an upper side surface portion 54 that is connected to the upper flange 53 and is not wound with the coil 46 in the upward direction of the magnet passage gap 47. Further, the iron core 45 is formed with a lower flange 55 and a lower side surface portion 56 that is connected to the lower flange 55 and is not wound with the coil 46 in the downward direction of the magnet passage gap 47. Yes.
When the rotating body 16 rotates and the permanent magnet 17 passes through the magnet passage gap 47, the iron core 45 of the stator 4 has a fixed distance L (2 mm) with respect to the upper surface 17A that is one surface of the permanent magnet 17. Of the lower side surface 56 facing each other at a fixed distance L (about 2 mm) with respect to the one side gap forming surface 47A which is the surface of the upper side surface 54 facing each other and the lower surface 17B which is the other surface of the permanent magnet 17. And the other-side gap forming surface 47B which is the surface.
The one-side gap forming surface 47A and the other-side gap forming surface 47B are formed in the same predetermined surface area. The area of the one-side gap forming surface 47A and the other-side gap forming surface 47B can be variously changed as required.
The fixed distances L and L are such that the upper surface 17A of the permanent magnet 17 faces the one side gap forming surface 47A of the upper side surface portion 54, and the lower surface 17B of the permanent magnet 17 is the other side gap forming surface 47B of the upper side surface portion 54. Is the distance that reduces the magnetic resistance, increases the magnetic flux density (surface density per unit of magnetic flux: magnetic field) and increases the magnetic attraction force, and the required electromagnetic force (magnetic field and current Force generated by the interaction) is ensured, and the rotational torque is increased to smoothly rotate the rotating body 16, that is, mechanical energy is efficiently generated with less electric energy.
The coil 46 is wound by superposing a plurality of times at the central portion 50, the upper portion 51, and the lower portion 52 between the upper flange 53 and the lower flange 55 of the iron core 45. For example, the conventional coil 46 has a length of 200 m. In contrast, in this embodiment, the length is 600 m. Thus, by superposing the coil 46 around the iron core 45 and winding it a lot, the electromagnetic force generated by the electromagnet 44 can be made larger than before.
When winding the coil 46 around the iron core 45, the coil 46 can be wound only around the central portion 50 of the iron core 45, or the coil 46 can be wound only around the upper portion 51 and the lower portion 52. It is.

As shown in FIG. 1, the electromagnet 44 is attached to the upper plate 5 and the lower plate 6 by an electromagnet mounting mechanism 58 using a plurality of brackets 57.
As shown in FIGS. 12 to 14, the bracket 57 has an L-shaped cross section with a long portion 59 and a short portion 60 bent at a right angle from the long portion 59, and on the coil side on the distal end side of the long portion 59. A mounting hole 61 is formed, and a pair of fixing screw holes 62 and 62 are formed in the short portion 60.
As shown in FIG. 10, in the electromagnet 44, as shown in FIG. 10, the upper mounting hole 63 is formed in the horizontal direction in the upper side surface portion 54, and the lower mounting hole 64 is horizontal in the lower side surface portion 56. Is formed in the direction.

As shown in FIGS. 1 and 3, an upper interposed pipe 65 is inserted and provided in the upper mounting hole 63. An upper mounting rod 66 is inserted through the upper intervening pipe material 65. The upper mounting rod 66 is formed with threaded portions 67 at both ends. The threaded portions 67 are respectively inserted into the coil-side mounting holes 61 of the brackets 57 arranged on both sides of the electromagnet 44, and to the threaded portion 67. The mounting nut 68 is screwed into the bracket 57.
Each of the brackets 57 arranged on both sides of the electromagnet 44 has a short portion 60 in contact with the lower surface of the upper plate 5 and a pair of fixing bolts 70 inserted from above into a pair of bolt insertion holes 69 formed in the upper plate 5. Then, it is fixed to the upper plate 5 by being screwed into the pair of fixing screw holes 62.
Further, the lower interposition tube 71 is provided in the lower mounting hole 64. The lower intervening pipe 71 is configured in the same manner as the upper intervening pipe 65 described above. A lower mounting rod 72 is inserted through the lower interposed pipe 71. The lower mounting rod 72 is configured in the same manner as the upper mounting rod 66 described above, and has threaded portions 73 formed at both ends. The threaded portions 73 are arranged on the coil side of the bracket 57 disposed on both sides of the electromagnet 44. Each is inserted into the mounting hole 61 and is then attached to the bracket 57 by screwing a mounting nut 74 into the threaded portion 73.
The both side brackets 57 of the electromagnet 44 have the short part 60 in contact with the upper surface of the lower plate 6 and a pair of fixing bolts 76 from below to a pair of bolt insertion holes 75 formed in the lower plate 6 as shown in FIG. And is fixed to the lower plate 6 by being screwed into the pair of fixing screw holes 62.

As shown in FIG. 15, one end of

electric wires

77 and 77 is connected to the electromagnet 44. The other ends of the

electric wires

77 and 77 are connected to an external power supply control device 78. The power supply control device 78 includes a power source 78A and a power supply adjustment unit 78B, and controls the supply of power (direct current or alternating current) to the electromagnet 44.

Next, the operation of the first embodiment will be described.
When electric current (0.5 A for one electromagnet: 2 A, 110 V) is supplied from the power supply control device 78 to the electromagnet 44 of the stator 4, the magnetic field of the permanent magnet 17 in the vicinity of the electromagnet 44 is changed. The rotating body 16 rotates by being converged on the electromagnet 44 and attracting the permanent magnet 17 to the electromagnet 44.
The rotation of the rotating body 16 causes the upper surface 17A of the permanent magnet 17 to rise when the permanent magnet 17 passes through the magnet passage gap 47 of the electromagnet 44 having a C-shaped cross section as shown in FIG. The lower surface 17B of the permanent magnet 17 faces the other side gap forming surface 47B of the lower side surface portion 56 at a constant distance L. Thereby, magnetic flux density (surface density per unit of magnetic flux) becomes large.
The magnetic field of the permanent magnet 17 is distorted in the rotating direction of the rotating body 16 by the magnetic field of the electromagnet 44, and a repulsive force is generated between the electromagnet 44 and the permanent magnet 17. As described above, the repulsive force is such that the upper surface 17A of the permanent magnet 17 faces the one-side gap forming surface 47A of the upper side surface portion 54 at a certain distance L, and the lower surface 17B of the permanent magnet 17 is the other side of the lower side surface portion 56. Since the side gap forming surface 47B is opposed to the side gap forming surface 47B at a certain distance L, it is larger than the conventional case where the one end surface of the permanent magnet and the one end surface of the electromagnet are opposed to each other, and a large rotational torque is obtained. Give rise to
Thereafter, the magnetic field of the permanent magnet 17 that enters next is distorted by the magnetic field of the electromagnet 44, and the distortion becomes larger toward the opposite pole of the permanent magnet 17 that has previously entered. Therefore, the repulsive force between the permanent magnet 17 and the electromagnet 44 that has entered first is greater than the repulsive force between the permanent magnet 17 and the electromagnet 44 that has entered next.
The situation as described above is simultaneously present at the locations where the electromagnets 44 are disposed (for example, four locations) when the rotating body 16 is rotating.
As a result, a force that is pushed out from the inside of the magnet passage gap 47 acts on the permanent magnet 17 that has previously entered, and a large rotational force acts on the rotating body 16. The rotating body 16 to which the rotational force is applied continues to rotate with the inertial force, and at this time, smooth rotation is achieved by the large rotational torque.
Thus, when the permanent magnet 17 passes through the magnet passage gap 47, the rotational torque is made larger than before by increasing the magnetic flux density and ensuring the required electromagnetic force. By rotating smoothly, mechanical energy can be efficiently generated with less electric energy.
Further, since only the magnet passage gap 47 is formed in the iron core 45 of the stator 4, the structure is simple, the handling is good, and the cost can be reduced.

FIG. 16 shows Embodiment 2 of the present invention.
In the following embodiments, portions that perform the same functions as those in the first embodiment will be described with the same reference numerals.
The features of the second embodiment are as follows. That is, the solar panel 79 constituting the solar system is connected to the electromagnet 44 of the stator 4 in parallel with the power supply control device 78. The solar panel 79 is connected to one end of an electric wire 81 provided with a solar energy storage unit 80 for storing electric power obtained by solar energy on the way. Further, the electric wire 77 of the power supply control device 78 and the other end of the electric wire 81 of the solar panel 79 are connected to the power switching device 82. The power switching device 82 is connected to the electromagnet 44 by the electric wire 83 and normally supplies the electric power (current) from the solar energy storage unit 80 preferentially to the electromagnet 44. When (current) is lost, power (current) from the power supply control device 78 is supplied to the electromagnet 44. The power switching device 82 supplies the power from the solar energy storage unit 80 to the electromagnet so as to supplement the power from the power supply control device 78 when power is supplied to the electromagnet 44 by the power supply control device 78. 44 can also be supplied.
According to the structure of the second embodiment, the same effects as those of the first embodiment described above are obtained, and power (current) obtained from the solar panel 79 is preferentially supplied to the electromagnet 44 to control external power supply. Since the device 78 is assisted by the power obtained by the solar panel 79, the amount of power used by the power supply control device 78 can be reduced, and saving can be achieved.
Further, when the rotational torque of the rotating body 16 tends to decrease due to aging of the permanent magnet 17 or the like, the rotation of the rotating body 16 is assisted by the power of the solar panel 79, and the power supply control device 78 Even when the electric power of is constant, the rotating body 16 can be smoothly rotated.

FIG. 17 shows Embodiment 3 of the present invention.
The features of the third embodiment are as follows. That is, in order to use the power generation device 1 as a generator, a rotating mechanism 84 is provided on the rotating shaft 15, an actuator 85 that drives the rotating mechanism 84 is provided, and the sunlight obtained from the solar panel 86 is obtained by the actuator 85. The structure is driven by electric power from the solar energy storage unit 87 that stores energy. The electromagnet 44 is connected to a storage battery 88 and a machine tool 89 by

electric wires

90 and 90.
According to the structure of the third embodiment, the rotating body 16 is rotated using solar energy, and the rotation of the rotating body 16 causes the electromagnet 44 to efficiently generate an electric force. It can be generated efficiently. And this electrical energy can be stored in the storage battery 88, or the mechanical instrument 89 can be driven.

18 and 19 show Embodiment 4 of the present invention.
The features of the fourth embodiment are as follows. That is, in the power generation device 1, the rotor 3 includes an annular body 92 as a rotating body in which a plurality of (for example, four) permanent magnets 17 are embedded at equal intervals in the circumferential direction within the case 91, and the annular body. A disk-shaped support body 93 that supports 92 and is provided with a rotating shaft 15.
The annular body 92 is formed in a ring shape with a predetermined thickness, and is arranged so that the direction of the axis C is in the horizontal direction. The support body 93 is formed by fixing the side surface 92A of the annular body 92 to the side surface 93A with a predetermined fixing means so that the annular body 92 can pass through the magnet passage gap 47 of the electromagnet 44. Support. Further, the support 93 is provided so as to penetrate the rotation shaft 15 so as to extend in the horizontal direction at the central portion. A plurality of (for example, four) electromagnets 44 are arranged along the torus 92 and are attached to the case 91 by an electromagnet attachment mechanism 58.
Then, in the magnet passage gap 47 of the electromagnet 44 formed in a C-shaped cross section by the rotation of the rotating body 16, the outer surface 17 </ b> C, which is one surface of the permanent magnet 17, becomes the one-side gap formation surface 47 </ b> A of the electromagnet 44. The inner surface 17 </ b> D, which is the other surface of the permanent magnet 17, faces the other gap forming surface 47 </ b> B of the electromagnet 44 at a certain distance L.
According to the configuration of the fourth embodiment, the same operational effects as the first embodiment can be obtained, and the driving force can be taken out in the horizontal direction, thereby changing the direction in which the driving force is taken out. Can be improved.

In the present invention, the frame body may have other shapes such as a box shape. It is also possible to connect and use two or more power generation devices. Furthermore, the shape of the permanent magnet can be not only a circular shape but also other shapes such as a square shape.

The power from the power generation device according to the present invention can be used to drive various devices.

1 Power generator
2 Frame
3 Rotor
4 Stator
5 Upper plate
6 Lower plate
15 Rotating shaft
16 Rotating body
17 Permanent magnet
17A Top surface of permanent magnet
17B Underside of permanent magnet
44 Electromagnet
45 Iron core
46 coils
47 Magnet passing gap
47A One side gap forming surface
47B Other side gap forming surface
53 Upper flange
54 Upper side
55 Lower flange
56 Lower side
57 Bracket
58 Electromagnet mounting mechanism
S Distance of gap for magnet passage
L Distance between the surface of the permanent magnet and the gap forming surface of the electromagnet

Claims

In the power generation device in which a rotating body with a permanent magnet embedded therein is provided and an electromagnet is disposed with respect to the permanent magnet, a rotating body having a rotating shaft connected to a central portion and the rotating body embedded in a circumferential direction. A rotor having a plurality of permanent magnets is provided, and a C-shaped cross-section iron core having a magnet passage gap through which the permanent magnet passes when the rotating body rotates, and the iron core is polymerized a plurality of times. A power generation device characterized in that a stator including a coil wound around is provided.
The stator has a one-side gap forming surface facing the one surface of the permanent magnet at a constant distance when the rotating body rotates and the permanent magnet passes through the magnet passage gap, The power generating device according to claim 1, further comprising: another side gap forming surface facing the other surface of the permanent magnet at a constant distance.