Power generator

The present invention provides a power generator which can obtain efficient power generation by changing magnetic force acting on electromotive coils.The power generator is provided with a first permanent magnet member 1, a second permanent magnet member 2, and an electromotive coil member 3 arranged concentrically to have a telescoping structure and is configured so that power generation in the electromotive coil member 3 is induced by rotating the first permanent magnet member 1 or/and the second permanent magnet member 2. In the power generator, the first and second permanent magnet members 1 and 2 cooperate with each other to change the magnetic force and, thus, to obtain efficient power generation.

TECHNICAL FIELD

The present invention relates to a power generator which induces power generation by relative rotation between a permanent magnet and an electromotive coil.

BACKGROUND ART

As well known, there have been developed various power generators which induce power generation. In those power generators, a permanent magnet member provided with permanent magnets arranged in the form of a tube and an electromotive coil member provided with electromotive coils arranged in the form of a tube are arranged concentrically. Namely, the single permanent magnet member and the single electromotive coil member are arranged concentrically. In this state, the single permanent magnet member is rotated to change magnetic force in the electromotive coil, and, thus, to induce power generation.

In the well-known power generator, since the magnetic force inducing power generation, that is, the magnetic force of the permanent magnet is constant, there has been employed the constitution as disclosed in Patent Document 1 in which an electromagnet is provided separately from the permanent magnet, and the magnetic force of the electromagnet is added or not added to increase or reduce the magnetic force.

PRIOR ART DOCUMENT

Patent Document

DISCLOSURE OF THE INVENTION

Problem to be Solved by the Invention

In other words, the power generator disclosed in the Patent Document 1 is based on the idea of fitting an electromagnet with a single permanent magnet member and changing the magnetic force acting on an electromotive coil by the electromagnet to obtain efficient power generation.

Means for Solving Problem

Compared with this, the power generator according to the present invention is provided with a first permanent magnet member and a second permanent magnet member which are arranged concentrically to have a telescoping structure, and the first and second permanent magnet members cooperate with each other to change the magnetic force acting on an electromotive coil, and, thus, to obtain efficient power generation.

Specifically, the power generator according to the present invention is provided with a first permanent magnet member, a second permanent magnet member, and an electromotive coil member which are arranged concentrically to have a telescoping structure and is configured so that power generation in the electromotive coil member is induced by rotating the first permanent magnet member or/and the second permanent magnet member. In the power generator, the first and second permanent magnet members cooperate with each other to change magnetic force, and, thus, to obtain efficient power generation.

As a specific example, one of the first permanent magnet member and the second permanent magnet member is positively rotated and the other is reversely rotated, and the rotation speeds of them are substantially increased, whereby the power generation efficiency can be improved.

The power generator is provided with a first permanent magnet member, a second permanent magnet member, and an electromotive coil member arranged concentrically to have a telescoping structure and is configured so that power generation in the electromotive coil member is induced by rotating the electromotive coil member. In the power generator, the first and second permanent magnet members cooperate with each other to change the magnetic force and, thus, to obtain efficient power generation.

As a specific example in which the first permanent magnet member or/and the second permanent magnet member is rotated, the electromotive coil member is disposed concentrically outward the first and second permanent magnet members, or the electromotive coil member in which electromotive coils constituted of air core coils are arranged is disposed concentrically between the first permanent magnet member and the second permanent magnet member.

As a specific example in which the electromotive coil member is rotated, the electromotive coil member in which the electromotive coils constituted of air core coils are arranged is disposed concentrically between the first permanent magnet member and the second permanent magnet member.

As a specific example, the first and second permanent magnet members are provided with a large number of permanent magnets with opposite polarities in the radial direction which are arranged in the circumferential direction, and the magnetic change with reliability is realized to obtain efficient power generation.

Further, the number of the permanent magnets of one of the first and second permanent magnet members is an integral multiple of the number of the permanent magnets of the other permanent magnet member, the permanent magnets of the one of the first and second permanent magnet members are arranged adjacent to each other so that their polarities are opposite to each other, and, at the same time, the permanent magnets of the other permanent magnet member are arranged adjacent to each other so that their polarities are opposite to each other, whereby the magnetic change is caused frequently to obtain efficient power generation.

Effects of Invention

According to the present invention, the magnetic force acting on the electromotive coil is changed by the cooperation between the first and second permanent magnet members, whereby efficient power generation can be obtained.

As a specific example, the first and second permanent magnet members are constituted of a large number of the permanent magnets with opposite polarities in the radial direction which are arranged in the circumferential direction. Consequently, the permanent magnet of the first permanent magnet member and the permanent magnet of the second permanent magnet member face each other in the radial direction, and the magnetic force is increased or reduced between the opposite polarities (N pole and S pole) of the facing permanent magnets and between the same polarities (S pole and S pole or N pole and N pole) of the facing permanent magnets, whereby the magnetic force can be changed.

Further, the number of the permanent magnets of one of the first and second permanent magnet members is an integral multiple of the number of the permanent magnets of the other permanent magnet member, and the permanent magnets of the one permanent magnet member are arranged adjacent to each other so that their polarities are opposite to each other. Consequently, the number of the permanent magnets of the first permanent magnet member and the permanent magnets of the second permanent magnet member with opposite polarities that face each other and the number of the permanent magnets of the first permanent magnet member and the permanent magnets of the second permanent magnet member with the same polarity that face each other are increased to make the magnetic change occur frequently, whereby efficient power generation can be obtained.

DESCRIPTION OF EMBODIMENTS

Hereinafter, best modes for carrying out the invention will be described based onFIGS. 1 to 9.

As a basic configuration of a power generator according to the present invention, as shown inFIGS. 1 and 5, a first permanent magnet member1provided with permanent magnets M1arranged in a tubular or annular form, a second permanent magnet member2provided with permanent magnets M2arranged in a tubular or annular form, and an electromotive coil member3provided with electromotive coils C arranged in a tubular or annular form are arranged concentrically to have a telescoping structure. By virtue of relative rotation between the first permanent magnet member1or/and the second permanent magnet member2and the electromotive coil member3, power generation in the electromotive coil member3is induced.

As a configuration common to examples 1 to 3, as shown inFIGS. 2 and 6, the first permanent magnet member1is constituted of a large number of permanent magnets M1whose polarities are opposite to each other in the radial direction, that is, a large number of the permanent magnets M1with opposite polarities on the outer peripheral surface and the inner peripheral surface which are arranged in the circumferential direction.

Similarly, the second permanent magnet member2is constituted of a large number of permanent magnets M2whose polarities are opposite to each other in the radial direction, that is, a large number of the permanent magnets M2with opposite polarities on the outer peripheral surface and the inner peripheral surface which are arranged in the circumferential direction.

The number of either of the permanent magnets M1and the permanent magnets M2is preferably an integral multiple of the number of the other permanent magnets. In the examples 1 to 3 to be described later, the number of the permanent magnets M2is doubled the number of the permanent magnets M1.

As shown inFIGS. 2 and 6, a large number of the permanent magnets M1are arranged adjacent to each other so that their polarities are opposite to each other. For example, the polarity of the outer peripheral surface of the permanent magnet M1adjacent to the permanent magnet M1whose polarity on the outer peripheral surface is N pole (the polarity on the inner peripheral surface is S pole) is S pole (the polarity on the inner peripheral surface is N pole).

Similarly, a large number of the permanent magnets M2are arranged adjacent to each other so that their polarities are opposite to each other. For example, the polarity on the outer peripheral surface of the permanent magnet M2adjacent to the permanent magnet M2whose polarity on the outer peripheral surface is N pole (the polarity on the inner peripheral surface is S pole) is S pole (the polarity of the inner peripheral surface is N pole).

In the formation of the first permanent magnet member1, the permanent magnets M1constituted of magnetic shells having a circular-arc cross section are assembled in a tubular or annular form. Alternatively, the permanent magnets M1magnetizes a tubular or rod-like magnetic body so as to have the above polarity arrangement, whereby the first permanent magnet member1is formed. The magnetizing is performed in a straight form along a central axis direction of the magnetic body or is performed on a skew with an inclination angle in a coaxial direction.

Further, in the present invention, the permanent magnets M1may be buried in a peripheral surface of a rotation shaft4or a fixing shaft4′ to be described later, and be arranged in a tubular or annular form, thereby forming the first permanent magnet member1.

In the formation of the second permanent magnet member2, the permanent magnets M2constituted of magnetic shells having a circular-arc cross section are assembled in a tubular or annular form. Alternatively, the permanent magnets M2magnetizes a tubular magnetic body so as to have the above polarity arrangement, whereby the second permanent magnet member2is formed. The magnetizing is also performed in a straight form along a central axial direction of the magnetic body or is performed on a skew with an inclination angle in a coaxial direction. The second permanent magnet member2has a larger diameter than the first permanent magnet member1and is disposed concentrically outward the first permanent magnet member1.

As shown by dashed lines inFIG. 1, the present invention includes a case where the first permanent magnet member1has stages1A and1B and the second permanent magnet member2has stages2A and2B, as well as a case where each segment (1A and1B or2A and2B) is a single member.

The electromotive coil member3is constituted of a large number of electromotive coils C arranged in the circumferential direction and is arranged concentrically with the first and second permanent magnet members1and2. For example, the electromotive coil member3is disposed concentrically outward the first and second permanent magnet members1and2as shown in the example 1 to be described later, or the electromotive coil member3is disposed concentrically between the first permanent magnet member1and the second permanent magnet member2as shown in the examples 2 and 3 to be described later.

In the power generator according to the present invention, as shown inFIGS. 4 and 9, the first permanent magnet member1and the second permanent magnet member2cooperate with each other to change the magnetic force, whereby efficient power generation can be induced.

Namely, when the polarity of the outer peripheral surface of the permanent magnet M1of the first permanent magnet member1is opposite to the polarity of the inner peripheral surface of the permanent magnet M2of the second permanent magnet member2facing the permanent magnet M1in the radial direction, strong stable magnetic force is generated between them.

For example, when the polarity of the outer peripheral surface of the permanent magnet M1is N pole, and the polarity of the inner peripheral surface of the permanent magnet M2is S pole, as shown by F1in the drawing, stable magnetic force flowing from the permanent magnet M1to the permanent magnet M2is generated. Meanwhile, when the polarity of the outer peripheral surface of the permanent magnet M1is S pole, and the polarity of the inner peripheral surface of the permanent magnet M2is N pole, as shown by F2in the drawing, stable magnetic force flowing from the permanent magnet M2to the permanent magnet M1is generated.

When the polarity of the outer peripheral surface of the permanent magnet M1of the first permanent magnet member1is the same as the polarity of the inner peripheral surface of the permanent magnet M2of the second permanent magnet member2facing the permanent magnet M1in the radial direction, the magnetic force flowing between them is not generated and the magnetic forces in directions shown by F3and F4in the drawing are generated.

Namely, as shown by F3in the drawing, the magnetic force flowing from the outer peripheral surface of the N pole of the permanent magnet M1to the outer peripheral surface of the S pole of the adjacent permanent magnet M1is generated. Moreover, as shown by F4, the magnetic force flowing from the outer peripheral surface of the N pole of the permanent magnet M2to the outer peripheral surface of the S pole of the adjacent permanent magnet M2is generated.

By virtue of the relative rotation between the first permanent magnet member1or/and the second permanent magnet member2and the electromotive coil member3, the magnetic forces in the directions shown by F1to F4in the drawing are replaced and act on the electromotive coils C, whereby efficient power generation can be obtained.

In the first and second permanent magnet members1and2according to the present invention, the thickness, the magnetic force, and the number of the permanent magnets M1and M2can be set freely, so that the magnetic force change can be improved.

Although the permanent magnets M1and M2of the first and second permanent magnet members1and2are arranged adjacent to each other in a tubular form as shown in the drawing, they may be arranged at a distance in the circumferential direction.

In the example 1, as shown inFIGS. 1 to 4, a first tubular yoke5is fitted onto a rotation shaft4rotated by a power source9such as a motor, a turbine, and an engine, and the first permanent magnet member1is fitted onto the first tubular yoke5.

The second permanent magnet member2is disposed concentrically at a distance in the radial direction from the first permanent magnet member1. The electromotive coil member3is fitted onto the second permanent magnet member2, and a second tubular yoke6is fitter onto the electromotive coil member3.

Accordingly, in this example, the first permanent magnet member1, the second permanent magnet member2, and the electromotive coil member3arranged concentrically to have a telescoping structure are provided. The first permanent magnet member1is rotated to fix the second permanent magnet member2and the electromotive coil member3, and the first permanent magnet member1, the second permanent magnet member2, and the electromotive coil member3are relatively rotated. The power generation in the electromotive coil member3is induced by the relative rotation.

As shown inFIG. 2, the electromotive coil C of the electromotive coil member3is formed by winding winding wires8around a plurality of cores7arranged on the inner peripheral surface of the second tubular yoke6at a distance in the circumferential direction. Each of the cores7is formed by stacking silicon steel plates and adhered to the outer peripheral surface of each of the permanent magnets M2of the second permanent magnet member2.

The number of the permanent magnets M2of the second permanent magnet member2is doubled the number of the permanent magnets M1of the first permanent magnet member1, and the permanent magnets M1and M2are faced in the radial direction. Namely, the outer peripheral surface of the one permanent magnet M1faces the inner peripheral surfaces of the two permanent magnets M2.

As described above, since the permanent magnets M2are arranged adjacent to each other so that their polarities are opposite to each other, the permanent magnet M2having the inner peripheral surface of the same polarity (for example, N pole) as the polarity (N pole) of the outer peripheral surface of the permanent magnet M1and the permanent magnet M2having the inner peripheral surface of the opposite polarity (S pole) face the outer peripheral surface of the one permanent magnet M1, so that the magnetic force change to be described later occurs frequently, whereby efficient power generation can be obtained.

To describe in detail, as shown inFIG. 4, when the polarity of the outer peripheral surface of the permanent magnet M1is opposite to the polarity of the inner peripheral surface of the permanent magnet M2facing the permanent magnet M1, strong stable magnetic force is generated between them in a direction shown by F1or F2.

Accordingly, the first permanent magnet member1rotates to rotate each of the permanent magnets M1, whereby the magnetic force in the direction shown by F1and the magnetic force in the direction shown by F2alternately act on the electromotive coil C through the core7adhered to the outer peripheral surface of each of the permanent magnets M2to change the magnetic force in the electromotive coil C, and, thus, to induce efficient power generation.

As shown inFIG. 4, when the polarity of the outer peripheral surface of the permanent magnet M1is the same as the polarity of the inner peripheral surface of the permanent magnet M2facing the permanent magnet M1, the magnetic force does not flow between them, and the magnetic force is generated in the directions shown by F3and F4in the drawing. A portion of the magnetic force in the direction shown by F4is added to the magnetic force in the direction shown by F1, whereby the magnetic force change is compensated.

It is preferable that the facing interval between the permanent magnet M1of the first permanent magnet member1and the permanent magnet M2of the second permanent magnet member2is reduced as far as possible to flow the magnetic force effectively.

In the example 2, as shown inFIGS. 5 to 7 and 9, a first tubular yoke5is fitted onto a fixing shaft4′, and the first permanent magnet member1is fitted onto the first tubular yoke5.

The electromotive coil member3is rotatably disposed coaxially at a distance in the radial direction from the first permanent magnet member1, and the second permanent magnet member2is fixed and coaxially disposed at a distance in the radial direction from the electromotive coil member3. A second tubular yoke6is fitted onto the second permanent magnet member2. The electromotive coil member3is rotated by a power source9such as a motor, a turbine, and an engine.

Accordingly, in this example, the first permanent magnet member1, the second permanent magnet member2, and the electromotive coil member3arranged concentrically to have a telescoping structure are provided. The electromotive coil member3is rotated to fix the first and second permanent magnet members1and2, and the electromotive coil member3and the first and second permanent magnet members1and2are relatively rotated. The power generation in the electromotive coil member3is induced by the relative rotation.

As shown inFIGS. 5 and 6, the electromotive coil member3is coreless and is provided with an electromotive coil C constituted of an air core coil around which a winding wire8is wound in a tubular or annular form, and the electromotive coils C are connected in a tubular or annular form to form the electromotive coil member3. Alternatively, each of the electromotive coils C constituted of the air core coil is held from the inside and the outside between two tubular bodies constituted of a nonmagnetic body such as glass to form the electromotive coil member3.

In this example, as in the example 1, the electromotive coil C may be a core coil.

The number of the permanent magnets M2of the second permanent magnet member2is doubled the number of the permanent magnets M1of the first permanent magnet member1, and the permanent magnets M1and M2are faced in the radial direction. Namely, the outer peripheral surface of the one permanent magnet M1and the inner peripheral surfaces of the two permanent magnets M2are faced each other, and the electromotive coil C is interposed in the facing interval.

As described above, since the permanent magnets M2are arranged adjacent to each other to have the polarities be opposite to each other, the permanent magnet M2having the inner peripheral surface of the same polarity (for example, N pole) as the polarity (N pole) of the outer peripheral surface of the permanent magnet M1and the permanent magnet M2having the inner peripheral surface of the opposite polarity (S pole) face the outer peripheral surface of the one permanent magnet M1, so that the magnetic change to be described later occurs frequently, whereby efficient power generation can be achieved.

To describe in detail, as shown inFIG. 9, when the polarity of the outer peripheral surface of the permanent magnet M1is opposite to the polarity of the inner peripheral surface of the permanent magnet M2facing the permanent magnet M1, strong stable magnetic force is generated between them in a direction shown by F1or F2in the drawing.

As shown inFIG. 9, when the polarity of the outer peripheral surface of the permanent magnet M1is the same as the polarity of the inner peripheral surface of the permanent magnet M2, the magnetic force does not flow between them, and the magnetic forces are generated in the directions shown by F3and F4in the drawing.

In this example, the magnetic forces in the directions shown by F1to F4inFIG. 9are directly acted on the inside of the electromotive coil C to induce efficient power generation.

Specifically, the electromotive coil member3rotates between the permanent magnet M1of the first permanent magnet member1and the permanent magnet M2of the second permanent magnet member2, and the magnetic force changes in the directions shown by F1to F4inFIG. 9, whereby efficient power generation is induced.

In this example, the electromotive coil C is interposed in the facing interval between the permanent magnet M1and the permanent magnet M2, so that the facing interval increases. Therefore, it is desirable to efficiently utilize the magnetic forces derived from the permanent magnets M1and M2either by increasing to some extent the magnetic forces derived from the permanent magnets M1and M2or by using under cryogenic conditions near absolute zero at which a superconducting phenomenon occurs.

In the example 3, as shown inFIGS. 5, 6, 8, and 9, a first tubule yoke5is fitted onto a rotation shaft4rotated by a power source9such as a motor, a turbine, and an engine, and the first permanent magnet member1is fitted onto the first tubule yoke5.

The electromotive coil member3is fixed and concentrically disposed at a distance in the radial direction from the first permanent magnet member1, the second permanent magnet member2is rotatably disposed concentrically at a distance in the radial direction from the electromotive coil member3, and a second tubular yoke6is fitted onto the second permanent magnet member2. The second permanent magnet member2is rotated by a power source10such as a motor, a turbine, and an engine. The power source9and the power source10may be the same power source.

Accordingly, in this example, the first permanent magnet member1, the second permanent magnet member2, and the electromotive coil member3arranged concentrically to have a telescoping structure are provided. The electromotive coil member3is fixed to rotate the first and second permanent magnet members1and2, and the electromotive coil member3and the first and second permanent magnet members1and2are relatively rotated. The power generation in the electromotive coil member3is induced by the relative rotation.

As shown inFIGS. 5 and 6, the electromotive coil member3is coreless and is provided with an electromotive coil C constituted of an air core coil around which a winding wire8is wound in a tubular or annular form, and the electromotive coils C are connected in a tubular or annular form to form the electromotive coil member3. Alternatively, each of the electromotive coils C constituted of the air core coil is held from the inside and the outside between two tubular bodies constituted of a nonmagnetic body such as glass to form the electromotive coil member3.

In this example, as in the example 1, the electromotive coil C may be a core coil.

The number of the permanent magnets M2of the second permanent magnet member2is doubled the number of the permanent magnets M1of the first permanent magnet member1, and the permanent magnets M1and M2are faced in the radial direction. Namely, the outer peripheral surface of the one permanent magnet M1and the inner peripheral surfaces of the two permanent magnets M2are faced each other, and the electromotive coil C is interposed in the facing interval.

As described above, since the permanent magnets M2are arranged adjacent to each other so that their polarities are opposite to each other, the permanent magnet M2having the inner peripheral surfaces of the same polarity (for example, N pole) as the polarity (N pole) of the outer peripheral surface of the permanent magnet M1and the permanent magnet M2having the inner peripheral surface of the opposite polarity (S pole) face the outer peripheral surface of the one permanent magnet M1, so that the magnetic change to be described later occurs frequently, whereby efficient power generation can be achieved.

To describe in detail, as shown inFIG. 9, when the polarity of the outer peripheral surface of the permanent magnet M1is opposite to the polarity of the inner peripheral surface of the permanent magnet M2facing the permanent magnet M1, strong stable magnetic force is generated between them in a direction shown by F1or F2in the drawing.

As shown inFIG. 9, when the polarity of the outer peripheral surface of the permanent magnet M1is the same as the polarity of the inner peripheral surface of the permanent magnet M2facing the permanent magnet M1, the magnetic force does not flow between them, and the magnetic forces are generated in the directions shown by F3and F4in the drawing.

In this example, the magnetic forces in the directions shown by F1to F4inFIG. 9are directly acted on the inside of the electromotive coil C to induce efficient power generation.

Specifically, the first permanent magnet member1and the second permanent magnet member2rotate while holding the electromotive coil member3between them, and the magnetic force changes in the directions shown by F1to F4inFIG. 9in each of the electromotive coils C between the permanent magnet M1and the permanent magnet M2, whereby efficient power generation is induced.

In this example, the first and second permanent magnet members1and2may be rotated at the same speed in the same direction, or one permanent magnet member and the other permanent magnet member may be rotated at different speeds in the same direction.

Alternatively, one of the first and second permanent magnet members1and2is positively rotated and the other is reversely rotated, and their rotation speeds are substantially increased, whereby the power generation efficiency can be improved.

In this example, the electromotive coil C is interposed in the facing interval between the permanent magnets M1and M2, so that the facing interval increases. Therefore, it is desirable to efficiently utilize the magnetic forces derived from the permanent magnets M1and M2either by increasing to some extent the magnetic forces derived from the permanent magnets M1and M2or by using under cryogenic conditions near absolute zero at which a superconducting phenomenon occurs.

The power generator according to the present invention is not limited to the above examples, and the present invention includes all the cases where the power generation in the electromotive coil member3is induced by the relative rotation between the first permanent magnet member1or the second permanent magnet member2and the electromotive coil member3.

In other words, the present invention includes all the cases where one of the first and second permanent magnet members1and2is rotated and the other permanent magnet member and the electromotive coil member3are fixed to perform the relative rotation, or one of the first and second permanent magnet members1and2is fixed and the other permanent magnet member and the electromotive coil member3are rotated to perform the relative rotation, whereby the power generation in the electromotive coil member3is induced.

In the power generator according to the present invention, all the cases where the power generation in the electromotive coil member3is induced by the relative rotation between the first and second permanent magnet members1and2and the electromotive coil member3are included.

In other words, the present invention includes all the cases where the first and second permanent magnet members1and2are rotated and the electromotive coil member3is fixed to perform the relative rotation, or the first and second permanent magnet members1and2are fixed and the electromotive coil member3is rotated to perform the relative rotation, whereby the power generation in the electromotive coil member3is induced.

DESCRIPTION OF THE REFERENCE NUMERALS