The present invention relates to a quantum motor, and more particularly to a quantum motor rotating as a result of action between magnetic field and the rotor.
A motor utilizing a concept of quantum has conventionally been disclosed, for example, in Japanese Patent Laying-Open No. 2001-268957.
The conventional quantum motor, however, has been unable to obtain sufficient rotation force.
From the foregoing, the present invention was made to solve the above-described problem, and an object of the present invention is to provide a quantum motor capable of obtaining sufficient rotation force.
A quantum motor according to one aspect of the present invention includes: a rotor containing a functional material of which quantum characteristic is controllable; a magnetic field application portion applying magnetic field to the rotor; and a varying portion varying the quantum characteristic of the rotor. The varying portion varies the quantum characteristic of the rotor, so that rotation force is generated in the rotor and the rotor rotates.
In the quantum motor structured as above, the quantum characteristic of the rotor is varied, so that the rotation force is generated in the rotor. Therefore, the quantum motor capable of generating sufficient rotation force can be obtained.
Preferably, the varying portion controls the quantum characteristic of the rotor by externally supplying physical energy to the rotor.
Preferably, the rotor contains an antiferromagnetic material and the functional material.
Preferably, the physical energy is supplied to a part of the rotor.
Preferably, the varying portion varies the quantum characteristic of the rotor, so that a current flows in the rotor and the current and the magnetic field act on each other, so that rotation force is generated in the rotor.
Preferably, the varying portion varies the quantum characteristic of the rotor, so that rotation force is generated in the rotor as a result of magnetic interaction between the rotor and the magnetic field.
A quantum motor according to another aspect of the present invention includes: a rotor containing a material allowing current flow from an irradiated portion to another portion as a result of irradiation of a part of the rotor with electromagnetic wave; a magnetic field application portion applying magnetic field to the rotor; and an irradiation portion irradiating the part of the rotor with the electromagnetic wave. The irradiation portion irradiates the part of the rotor with the electromagnetic wave, so that the current flows from the irradiated portion to another portion and the rotor rotates as a result of interaction between the current and the magnetic field.
In the quantum motor structured as above, the irradiation portion irradiates the part of the rotor with the electromagnetic wave, so that the current flows from the irradiated portion to another portion and the rotor rotates as a result of interaction between the current and the magnetic field. Therefore, the rotor can reliably be rotated, using interaction between the rotor and the magnetic field application portion.
A quantum motor according to yet another aspect of the present invention includes: a rotor containing a material capable of varying orientation of magnetic moment; a magnetic field application portion applying magnetic field to the rotor; and a varying portion capable of acting on the rotor and varying the orientation of the magnetic moment of the rotor. The varying portion adjusts the orientation of the magnetic moment of the rotor in such a manner that, when the rotor moves toward the magnetic field application portion, the rotor and the magnetic field application portion are attracted to each other, and when the rotor moves away from the magnetic field application portion, the rotor and the magnetic field application portion repulse from each other.
In the quantum motor structured as above, the varying portion adjusts the orientation of the magnetic moment of the rotor in such a manner that, when the rotor moves toward the magnetic field application portion, the rotor and the magnetic field application portion are attracted to each other, and when the rotor moves away from the magnetic field application portion, the rotor and the magnetic field application portion repulse from each other. Therefore, the rotor can reliably be rotated, using interaction between the rotor and the magnetic field application portion.
An embodiment of the present invention will be described hereinafter with reference to the drawings. In the embodiment below, as the same or corresponding elements have the same reference characters allotted, detailed description thereof will not be repeated.
Organic molecular magnets can base on different magnetic mechanisms (quantum superexchange) which do not rely on direct exchange interactions like in conventional ferromagnetic metal alloys, but on magnetism mediated by electron spins. From that assumption, can result magnetic materials with pure or without a domain structure, which can be switched (rotors in electric machines) much faster than in conventional materials (higher speeds of rotations at a given power supply).
New materials, prepared as thin layer, could be used as a surface layer of a rotor in electric engines to improve transfer of the magnetic flux between a stator and a rotor. Higher speeds of rotation could result in reduced depth of magnetic flux penetration into a bulk of materials (less intensity of wired currents). In an ideal, hypothetic case, stators and rotors in an electric machine should interact magnetically through subsurface regions only.
In summary, quantum magnetism in organic molecular substances should result in materials with completely new, very fast, domain-less magnetic switching at temperatures from liquid nitrogen (140K) up to 300K and above.
From physical point of view, the development of molecular based magnetism will evolve through the following steps.
a) Hydrogen Phthalocyanine (H2Pc) as an Input (Base) Material
b) Modification of Hydrogen Phthalocyanine by Metal Substitutions-Magnetic Elements Substitutions (Co, Fe, Ni,)
c) Preparation of Diluted Phases of H2Pc/MePc
Referring to
d) Preparation of Mixed Phases of Diluted H2Pc/MePc with Alkaline Metals (AM), like Na, K, Al, Mg
These metals should work as sources of electrons to mediate (superexchange) magnetic quantum forces between magnetic atoms located at centers of Pc molecules. This modification should warrant magnetic behavior at higher temperatures (important for work with high-temperature superconductors, room temperatures and above).
e) The Whole Solution should be Checked Both for the β-Phase and the α-Phase Of Materials.
A distance between molecule planes depends on sample growing conditions. The distance determines a force of quantum interaction between magnetic atoms and molecules. A choice between the α and the β phases depends also on macroscopic mechanical (elastic) properties, and should be tested during experiments (by MOKE and BLS).
Proposed type of materials was invented in 1996 by A. R. Harutyunyan et al. in the Nax[(CoPc)y(H2Pc)1-y] system (with x=1.7, y=0.2 or 0.11). They obtained hysteresis-loop behavior at room temperatures. However, other magnetic elements like Ni and Fe, and other alkaline metals, in different proportions, were not tested.
A torque results from classical and quantum mechanisms.
In the classical mechanism, electric carriers which propagate from external parts of lighted rotor to its center are influenced by the Lorenz-type force. Such currents result from a difference between local electric carriers concentrations of the lighted (near edge) and not lighted parts of a rotor. A half of a ring, which is not kept in a magnetic field, is lighted (pumped) by light. This general idea of classical mechanism is provided in the drawings.
As shown in
Antiferromagnetic material 50 is arranged, for example, on a substrate, and functional material 40 is provided so that it comes in contact with antiferromagnetic material 50. Antiferromagnetic material 50 controls a magnetic characteristic of functional material 40.
Light source 90 irradiates functional material 40 with light, and accordingly, orientation of spins in functional material 40 can be varied.
In the quantum mechanism, a torque can be enhanced by controlling a magnetic state of a layer of organic-type functional material 40 due to quantum type exchange-bias interaction between the layer of rotor 60 and attached antiferromagnetic material 50. This will cause removal of the ring from an externally applied magnetic field (magnetic field applied by N pole permanent magnet 20 and S pole permanent magnet 30). A quantum based energy results from superexchange energy or double-exchange energy between spins of interacting molecules in an organic material. A spin orientation can be influenced by external magnetic field and what seems the most important advantage of organic materials, by externally applied light (possibly laser light from diodes). Namely, laser or a diode is used as light source 90.
Functional material 40 serving as the organic magnetic-type layer is sensitive to light and causes changes of conductivity in some orders (104 or more). This criterion can be fulfilled by diluted phases of H2Pc/MePc shown in
Bilayers (ferromagnetic/antiferromagnetic materials) can be ordered into multilayered structure to enhance the performance of future devices.
Quantum motor 10 consists of mainly four parts, that is, rotor 60, N pole permanent magnet 20 and S pole permanent magnet 30 constituting a pair of stators, light source 90 implemented by a diode unit (controller), and a shaft.
N pole permanent magnet 20 is arranged so as to face light source 90. A plurality of holes 21 are provided in N pole permanent magnet 20, through which light emitted from LEDs 91 provided in light source 90 passes and rotor 60 is irradiated with that light.
Rotor 60 is fixed to a shaft 100, and rotates together with shaft 100. In addition, rotor 60 is sandwiched between stators 80.
S pole permanent magnet 30 implementing a part of stator 80 is arranged so as to face rotor 60.
Stator 80 consists of two parts of polarities, that is, N pole permanent magnet 20 and S pole permanent magnet 30, in order to give an external magnetic field to rotor 60.
A mechanical torque N which is a product of a force and an arm is expressed in the following equation.
{right arrow over (N)}={right arrow over (r)}×{right arrow over (F)}
Assume that on the elementary magnetic moment (a spin) acts a force. This force is proportional to magnetic moment p of the spin, that is, expressed in the following equation
F=p·H
where H represents the externally applied magnetic field.
The magnetic moment is proportional to a magnetic stream produced by a spin (
p=M/(μ0·d)
where μ0 represents the magnetic permeability of vacuum, and d represents the magnetic moment length. Next, force F acting on magnetic moment p located in the external magnetic field H=B/μ0 is equal to the value as follows.
F=p·(B/μ0)
Then, mechanical moment NP acting on magnetic moment p, which is mounted somehow at the distance (radius) R from the rotor axis, can be estimated as follows.
This simple estimation shows importance of using thin layered technology (as compared with
The M quantity can be treated as a macro-parameter of given material. In this way, it represents total magnetization (magnetic moment) of a sample (rotor). For non-magnetic phthalocyanines, it is equal to 0.001 to 0.002 emu/g (Am·m2/kg). Assuming following data: diameter of the rotor 2R=5 cm, magnetic field induction of the external field B=1T, layer thickness d=10 nm, we obtain Np=0.125·104Nm for the mechanical torque. This gives a power of the order of 107W (1000 kW) for the rotor (for one layer=10 nm) working with the angular frequency of 1000 Hz. This perfect case does not include stray fields, energy needed for spin reversal (as compared with
The classical mechanism of a torque production (
Alternatively, as shown in
Alternatively, as shown in
The permanent magnet may be arranged in the stator in accordance with the divided shape as shown in
As a result of such electron flow, the current is generated. The current and the magnetic field applied in the orthogonal direction act on each other, and the force in a direction rotating the rotor is generated.
As shown in
Referring to
A method of controlling the motor will now be described.
The number of rotations of the motor is controlled by changing a switching frequency of the LED serving as light trigger.
Electron excitation level or angular momentum of electron spin can be controlled by changing a color (wavelength) or intensity of light, and hence the torque can be controlled.
In addition, by irradiating the inner side instead of the outer peripheral portion with light so as to reverse the direction of diffusion of excited electrons in
If a direction resulting from combination of magnets serving as the external magnetic field with a material in an excited state is assumed as the forward direction, rotational motion in the reverse direction can result from change in the positions of the magnets and combination of the magnets with a material in a rest state as in
In addition, if a rotating machine dedicated for power generation is connected to a rotation shaft, regenerative energy as in the conventional motor can be obtained. The present invention can be used, for example, for a quantum linear motor in which a rotation shaft is not provided and the entire system is linearly structured.
Moreover, the present invention can be used as a motor for outdoor use, that employs sunlight as the light source and can semipermanently operate.
Further, the present invention can be used as a solar power generation system, that employs sunlight as the light source, generates power by rotating the rotor, and can semipermanently operate.
In addition, the rotor portion can be implemented as an independent, disk-shaped product, for use as a portable energy source. In this case, it can be used in combination with the external magnetic field and a separate apparatus for supplying light trigger.
Moreover, the present invention can be used as a coating material for protecting a thin film of a metastable organic material, which is necessary in carrying the rotor disk alone.
The present invention is summarized as follows.
(1) According to the present invention, a ferromagnetic such as Ni, Co, Fe, and the like and phthalocyanine are combined to synthesize an electronically or magnetically metastable ferromagnetic material. For synthesizing a base material, hydrogen phthalocyanine serving as a base and metallophthalocyanine of which hydrogen has been substituted with Ni, Co, Fe, and the like are combined to manufacture a synthesized material. As a result of substitution with metal atom, a hole is generated within a molecule. Magnetization of the material can be varied by electron migration in the space or by change in the electron spin in the space.
As to supply of functional electrons, as an electron supply source, hydrogen phthalocyanine/metallophthalocyanine and an alkali metal such as Na, K, Al, Mg, and the like are combined. Electrons supplied from the alkaline metal causes transmission of quantum magnetic force in the material through the molecule, and magnetization of the material can be controlled at room temperatures and above.
(2) Using the material above, external energy such as light is used to control electron density distribution or the electron spin of the material, thus varying the physical property thereof.
(3) In addition, a drive device in accordance with the basic principle that such an operation is performed in external magnetic field set in advance and resultant force acting on the material is extracted as mechanical energy is provided.
(4)
One functional material is implemented by a set of two layers. To implement the rotor, the layers of the functional material are superimposed on each other to form a multi-layered structure, and a substrate material is formed as a holding member, as the lowermost layer. The functional material has a thickness (two layers) of 100 to 300 nm. Therefore, for example, if a rotor having thickness t=approximately 1 cm is assumed and if the substrate material has a thickness of 5 mm, the layers of the functional material of the order of several tens of thousands can be superimposed on each other.
(5) If light is employed as the input energy (trigger), rotor 60 should maintain transparency.
(6) As shown in
Quantum motor 10 according to the present invention includes: rotor 60 containing functional material 40 of which quantum characteristic is externally controllable; N pole permanent magnet 20 and S pole permanent magnet 30 serving as the magnetic field application portion applying magnetic field to rotor 60; and light source 90 serving as the varying portion varying the quantum characteristic of rotor 60. Light source 90 varies the quantum characteristic of rotor 60, so that rotation force is generated in rotor 60 and rotor 60 rotates.
Light source 90 controls the quantum characteristic of rotor 60 by externally supplying physical energy to rotor 60.
Rotor 60 contains antiferromagnetic material 50 and functional material 40. The physical energy is supplied to a part of rotor 60. Light source 90 varies the quantum characteristic of rotor 60, so that a current flows in rotor 60 and the current and the magnetic field act on each other, whereby rotation force is generated in rotor 60. Light source 90 varies the quantum characteristic of rotor 60, and rotation force is generated in rotor, 60 as a result of interaction between rotor 60 and the magnetic field.
Quantum motor 10 includes: rotor 60 containing a material allowing current flow from an irradiated portion to another portion as a result of irradiation of a part of rotor 60 with electromagnetic wave; N pole permanent magnet 20 and S pole permanent magnet 30 applying magnetic field to rotor 60; and light source 90 serving as the irradiation portion irradiating the part of rotor 60 with the electromagnetic wave. Light source 90 irradiates the part of rotor 60 with the electromagnetic wave, so that the current flows from the irradiated portion to another portion and rotor 60 rotates as a result of interaction between the current and the magnetic field.
Light sources 801, 802 can vary the orientation of spin 41 by irradiating rotor 60 with light (electromagnetic wave). Another physical apparatus instead of light sources 801, 802 may vary the orientation of spin 41. The S pole is located in the direction of the arrowhead of spin 41. As a pair of N pole permanent magnet 20 and S pole permanent magnet 30 is arranged above and under rotor 60, each of N pole permanent magnet 20 and S pole permanent magnet 30 interacts with spin 41 and rotor 60 rotates. Spin 41 of functional material 40 varies its orientation upon receiving external energy such as light.
It should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/JP2007/050640 | 1/11/2007 | WO | 00 | 11/19/2009 |