JP2003049762A - Drive device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drive device that can produce a larger output than a conventional device even with the same energy consumed per unit time or power consumption. SOLUTION: The drive device comprises a cylinder 11, a rotor 12 rotatably housed therein, and an electric motor 1 connected to a rotary shaft 12a thereof. An inner circumferential surface of the cylinder 11 has a plurality of straight stationary side magnet bands 13 whose surfaces facing an outer circumference of the rotor 12 have the same magnetic pole, along an axial direction of the rotary shaft 12a. The outer circumferential surface of the rotor 12 has one or more helical movable side magnet bands 14 whose surfaces facing the inner circumferential surface of the cylinder 11 have the magnetic pole of the same kind and identical to the magnetic pole present on the surfaces of the stationary side magnet bands 13 facing the outer circumference of the rotor 12, along an axial direction of the rotary shaft 12a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive device used for supplying power to various machines and equipment. More specifically, as the object (driven object) in which the drive device according to the present invention is incorporated, various objects from an ultra-small product to a large product can be considered. Among them, examples of the ultra-small products include mobile phones, digital cameras, digital video cameras, personal digital assistants (mobile devices), chargers and related devices. On the other hand, examples of small products include personal computers, various cordless electrical devices, and lighting equipment. Further, specific examples of the medium-sized products include a bicycle with an auxiliary power source (electric bicycle), an air conditioner, a signboard (illumination), a vending machine, an outdoor generator, and the like. Large-scale products include general vehicles (including motorcycles, electric trains, special vehicles, etc.), ships, generators installed in houses, shops, buildings, factories, accommodation facilities, various large-scale equipment, such as wind power generators and hydropower. Auxiliary power devices such as power generators, blowers, water supply facilities, water treatment machines can be listed. That is, the drive device according to the present invention has an extremely wide range of applications and can be used in various fields.

[0002]

The demand for electric power, which is rapidly increasing year by year, is currently mainly covered by thermal power generation, nuclear power generation, and hydroelectric power generation. However, both power generation methods have major problems.
First of all, thermal power generation has a problem of depletion of fossil fuels and environmental degradation due to large amount of greenhouse gas emissions, while nuclear power generation has a problem of safety and final disposal of radioactive waste. Follow around. Furthermore, hydropower generation involves large-scale destruction of nature when constructing a dam, so it will be extremely difficult to construct new power generation facilities in the future.

[0003] In recent years, in place of the conventional method having many problems, various energy sources (sunlight, wind power, tidal current, tidal difference, wave power, geothermal power, etc.) which are abundant in nature have been actively used. Some of them have already been put to practical use. However, it is very difficult to meet the electricity demand of the entire human race by power generation using natural energy sources, and the creation of new power generation technology is awaited.

By the way, in order to solve the energy problem, it is important not only to creatively devise the power generation technology but also to suppress the energy consumption. And for this, now
It is extremely important to further improve the performance of the drive device used to supply power to various machines and devices, that is, the electric motor. More specifically, the electric motor is, of course, a device that converts electric energy (electric power) into mechanical energy (rotational force). In general, electric motors have a very high efficiency, but in reality, unavoidable losses occur for various reasons, which results in wasteful consumption of energy, that is, electric power. Therefore, further improvement in performance, in other words, the realization of a device capable of obtaining a larger output even if the input is the same is awaited.

Therefore, the problem to be solved by the present invention is to provide a driving device which can obtain a larger output than the conventional device even if the energy consumed per unit time, that is, the power consumption is the same.

[0006]

[Means for Solving the Problems] In the process of earnestly researching in order to solve these problems, the present inventor does not modify the electric motor itself, but adds some auxiliary mechanism to the electric motor. I thought that high performance could be achieved. But needless to say, this auxiliary mechanism must not consume electrical energy or power. Because if this auxiliary mechanism consumes some power, the net gain will be infinitely equal to zero.

Therefore, the inventor of the present invention considered operating this auxiliary mechanism by the action of the magnetic force of the permanent magnet. If a permanent magnet can be used as a main component to realize an auxiliary mechanism that actually functions effectively, the mechanism will naturally consume no power for a long time, so the above-mentioned problem is not completely solved. Will be solved in.

However, as the research is further promoted based on such a technical idea, it has become clear that the following problems exist. As is well known, the magnet has an N pole and an S pole, and the auxiliary mechanism utilizes a repulsive force (repulsive force) generated between magnetic poles of the same type. More specifically, first, the members to be the cylinder and the rotor are prepared. The permanent magnet is attached to the inner peripheral surface of the former and the outer peripheral surface of the latter to a predetermined pattern. Further subsequently, the rotating body thus obtained is housed inside the cylindrical body so as to be rotatable with respect to the cylindrical body. Finally, if the output shaft of the electric motor is directly connected to the rotation shaft of the rotor or indirectly via an interrupting mechanism that can cut off the transmission of the rotation force if necessary, the repulsive force generated between magnetic poles of the same type can be obtained. A driving device having an auxiliary mechanism that is utilized is completed.

Theoretically, in such a driving device,
The electric motor is energized by the interaction (continuous repulsion) between the permanent magnet on the cylinder side and the permanent magnet on the rotor side, and as a result, high performance is exhibited as a whole. However, in practice, it was found that the auxiliary mechanism did not function as expected and therefore did not contribute to higher performance. This is considered to be due to the following reasons. As described above, many permanent magnets are arranged in the cylindrical body and the rotor, but the repulsive force between the set of permanent magnets that tries to rotate the rotor in the forward direction at a certain moment is It is significantly weakened by the attraction between it and other permanent magnets that are simultaneously generated, and in most cases, it is completely canceled. As a result, the permanent magnets arranged to face each other do not function as intended and thus the auxiliary mechanism does not work effectively.

Therefore, the present inventor has conducted further research in view of these facts, and as a result, the fixed side permanent magnet and the movable side magnet, which are respectively disposed on the inner peripheral surface of the cylindrical body and the outer peripheral surface of the rotor, have been developed. It has been found that in a permanent magnet, all of the surfaces facing each other must have the same and the same kind of magnetic pole. With such a structure, the output shaft of the electric motor connected to the rotary shaft of the rotor is biased by the auxiliary mechanism, and as a result, the overall performance is further improved. In other words, it is possible to realize a drive device that can obtain a larger output than the conventional device even if the energy consumed per unit time, that is, the power consumption is the same.

The present invention has been made on the basis of these new findings, and the above-mentioned problems are solved in a cylindrical body, a rotor rotatably housed in the cylindrical body, and a rotating shaft of the rotor. A linear fixed magnet band having a magnetic pole on the inner peripheral surface of the cylindrical body, the surface facing the outer peripheral surface of the rotor having the same magnetic pole. A plurality of strips are provided along the direction, and the outer peripheral surface of the rotor has a surface facing the inner peripheral surface of the cylindrical body on the side facing the outer peripheral surface of the rotor in the fixed magnet band. A driving device characterized in that one or more spiral movable magnet strips extending in the axial direction of the rotating shaft, which are of the same kind as the magnetic poles existing on the surface and which are the same magnetic poles, are provided. Will be solved by.

Another object of the present invention is to provide a cylindrical body, a rotor rotatably housed in the cylindrical body, and an electric motor connected to a rotary shaft of the rotor, and to provide an inner peripheral surface of the cylindrical body. Has
An outer circumference of the rotor is provided with one or more spiral fixed-side magnet bands that extend along the axial direction of the rotation shaft and that have the same magnetic poles on the side facing the outer circumference of the rotor. On the surface, the surface on the side facing the inner peripheral surface of the cylindrical body is of the same type as the magnetic pole existing on the surface on the side facing the outer peripheral surface of the rotor in the fixed magnet band, and is composed of the same magnetic pole. A straight-line movable side magnet band is provided in a plurality of lines along the axial direction of the rotating shaft, and is solved by a drive device.

Further, the above-mentioned problem is provided with a cylindrical body, a rotor rotatably housed in the cylindrical body, and an electric motor connected to a rotary shaft of the rotor, and an inner peripheral surface of the cylindrical body. Has
An outer circumference of the rotor is provided with one or more spiral fixed-side magnet bands that extend along the axial direction of the rotation shaft and that have the same magnetic poles on the side facing the outer circumference of the rotor. On the surface, the surface on the side facing the inner peripheral surface of the cylindrical body is of the same type as the magnetic pole existing on the surface on the side facing the outer peripheral surface of the rotor in the fixed magnet band, and is composed of the same magnetic pole. According to another aspect of the present invention, there is provided a driving device, characterized in that one or more spiral movable magnet bands extending along the axial direction of the rotating shaft are provided.

In particular, the above-mentioned problems are solved by the present invention, a cylinder, a rotor rotatably housed in the cylinder, an electric motor whose output shaft is connected to the rotary shaft of the rotor, an output shaft of the electric motor, and Between the rotary shaft of the rotor, the output shaft and the rotary shaft are connected, and an interrupting mechanism for interrupting the transmission of the rotational force is provided if necessary, and the inner peripheral surface of the cylindrical body is provided. The outer peripheral surface of the rotor has a plurality of linear fixed-side magnet bands whose surfaces facing the outer peripheral surface of the rotor are formed of the same magnetic poles along the axial direction of the rotating shaft. In, the surface on the side facing the inner peripheral surface of the cylindrical body is the same kind as the magnetic pole existing on the surface on the side facing the outer peripheral surface of the rotor in the fixed magnet band, and is composed of the same magnetic pole. One or more spiral movable magnet bands extending along the axial direction of the rotating shaft are provided. It is solved by a drive device, characterized in that.

Alternatively, the above-mentioned problems are solved by the present invention, a cylinder, a rotor rotatably housed in the cylinder, an electric motor whose output shaft is connected to the rotary shaft of the rotor, an output shaft of the electric motor, and Between the rotary shaft of the rotor, the output shaft and the rotary shaft are connected, and an interrupting mechanism for interrupting the transmission of the rotational force is provided if necessary, and the inner peripheral surface of the cylindrical body is provided. Is provided with one or more spiral fixed-side magnet bands extending in the axial direction of the rotary shaft, the magnetic poles having the same magnetic poles on the side facing the outer peripheral surface of the rotor. On the outer peripheral surface of, the surface on the side facing the inner peripheral surface of the cylindrical body,
A straight movable magnet strip of the same kind as the magnetic pole existing on the surface of the fixed magnet strip facing the outer peripheral surface of the rotor and having the same magnetic pole is arranged along the axial direction of the rotating shaft. The problem is solved by a driving device characterized in that a plurality of lines are provided.

[0016] In addition, the above-mentioned problems are: a tubular body, a rotor rotatably housed in the tubular body, an electric motor whose output shaft is connected to the rotary shaft of the rotor, and an output shaft of the electric motor. An inner peripheral surface of the tubular body, which is provided between the rotary shaft of the rotor and connects the output shaft and the rotary shaft, and interrupts transmission of rotational force as necessary. Has
An outer circumference of the rotor is provided with one or more spiral fixed-side magnet bands that extend along the axial direction of the rotation shaft and that have the same magnetic poles on the side facing the outer circumference of the rotor. On the surface, the surface on the side facing the inner peripheral surface of the cylindrical body is of the same type as the magnetic pole existing on the surface on the side facing the outer peripheral surface of the rotor in the fixed magnet band, and is composed of the same magnetic pole. According to another aspect of the present invention, there is provided a driving device, characterized in that one or more spiral movable magnet bands extending along the axial direction of the rotating shaft are provided.

Examples of the fixed-side magnet band and the movable-side magnet band include those configured by using a pseudo monopole magnet (the pseudo-monopole magnet constitutes
Only one of the magnet strips may be used). For example, the magnet bands can be formed by arranging pseudo monopole magnets of a certain size in a line in a band. Here, the pseudo monopole magnet will be briefly described.

The term "quasi monopole magnet" literally means a pseudo monopole magnet. Somewhere in space there is (and is considered to be) a monopolar magnet having only one of these N-poles or S-poles.
A quasi-monopole magnet is a magnet that behaves as if it has such characteristics, and not only has a pair of different magnetic poles, but also has another magnetic pole. That is, it has a structure in which the magnetic poles are arranged in the order of N pole-S pole-N pole or S pole-N pole-S pole. Moreover, the magnetic force of any one of the magnetic poles (especially the magnetic pole on the one end side) is extremely strong. Such a pseudo monopole magnet is disclosed in, for example, Japanese Patent Laid-Open No. 6-26.
It can be manufactured using the method disclosed in Japanese Patent No. 7732.
The main points will be briefly described below.

The apparatus used for manufacturing the above-mentioned quasi-unipolar magnet, particularly the coil unit thereof, is manufactured as follows. First, consider a Mobius ring with an appropriate width. Then, a plurality of coil wires are arranged on the surface as if a plurality of parallel lines were written along the circumferential direction. When this is completed, all the coil wires are connected so that the terminal end of a certain coil wire and the starting end of the adjacent coil wire are connected, and finally an integrated body, that is, a coil wire bundle is formed. Separately from this, another coil wire bundle having the same structure but the twisting direction of the Mobius ring is reversed is prepared. After the two coil wire bundles are obtained in this manner, one end of the two coil wire bundles and the other end thereof are connected to form an integrated body, that is, a coil wire bundle pair.

Further, another pair of coil wire bundles is prepared, and its start end is connected to the end of the previous one. This completes the coil unit. To manufacture a quasi-monopole magnet, set the ferromagnetic material, that is, the material of the quasi-monopole magnet in the special coil unit obtained in this way, and apply a current to the unit to magnetize the material. Good. By this process, an extremely peculiar magnet in which only one of the N pole and the S pole is extremely strong, as if there is only one of the N pole and the S pole is completed. This is the above-mentioned pseudo monopole magnet.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION The first embodiment of the present invention will be specifically described below with reference to FIGS. 1 is a conceptual diagram of the drive device according to the present embodiment, and FIG. 2 is an X in FIG.
-A cross-sectional view taken along the line X, and Fig. 3 is a perspective view of the rotor portion.

As shown in FIG. 1, the drive device according to the present embodiment (hereinafter referred to as the present drive device) includes an electric motor 1, an auxiliary mechanism 2, and a flywheel 3 as main components. Of these, a DC type is used as the electric motor 1 in the present embodiment, but basically any type may be used, and the structure thereof is well known, so a detailed description thereof will be omitted.

The flywheel 3 plays a role of absorbing minute fluctuations in the rotation speed due to the existence of the auxiliary mechanism 2 and making the rotation non-intermittent. In the present embodiment, the flywheel 3 is arranged below the auxiliary mechanism 2, but the flywheel 3 has the electric motor 1
It only needs to rotate with the output shaft 1a of
The position is not limited at all. In this drive device, the shaft protruding from the flywheel 3 (device output shaft)
An input shaft, that is, a driven shaft (not shown) included in various devices and machines is connected to 3a.

The auxiliary mechanism 2 which constitutes the present drive device together with the above-mentioned elements is generally fixed and fixed in position, in particular, is fixed to the case of the electric motor 1, and is rotated in the cylindrical body 11. And a rotor 12 that is stored as much as possible. Actually, a bearing for preventing the rotating shaft 12a of the rotor 12 from being eccentric is also provided, but this is omitted in the drawing. The output shaft 1a of the electric motor 1 is directly connected to the rotary shaft 12a of the rotor 12.

On the inner peripheral surface of the cylindrical body 11, there is provided a fixed-side magnet band 13 composed of a permanent magnet (the fixed-side magnet band 13 is divided by a chain line in FIG. 1). Corresponding to the vertically elongated area with diagonal lines). This fixed side magnet band 13 is
The surface of the rotor 12 facing the outer peripheral surface is the same magnetic pole, in particular, a straight shape having only N poles. Further, as can be seen from FIG. 2, it is equally spaced along the axial direction of the rotary shaft 12a. There are multiple articles, specifically 9 articles in total. Therefore, needless to say, a non-magnetic region having a predetermined width exists between the adjacent fixed magnet bands 13. Incidentally, the permanent magnet used here has a residual magnetic flux density of 0.3 to 1.2.
It is about T (3000 to 12000 Gs).

On the other hand, on the outer peripheral surface of the rotor 12, as can be seen from FIG. 3 in addition to FIG. 2, there is provided a movable magnet band 14 which is also constructed by using permanent magnets. The surface of the movable magnet strip 14 facing the inner peripheral surface of the cylindrical body 11 is of the same kind as the magnetic poles present on the surface of the fixed magnet strip 13 facing the outer peripheral surface of the rotor 12, and The magnetic poles are in a spiral shape having the same magnetic pole, that is, only N poles.
However, the spiral formed by the movable magnet strip 14 is
It extends along the axial direction of 2a, and here, a mode in which a constant angle is always formed with respect to the coaxial direction is adopted.

Furthermore, this spiral movable side magnet band 1
No. 4 has one or more articles, especially six articles, at equal intervals.
Therefore, a non-magnetic region having a predetermined width exists between the adjacent movable magnet bands 14. The permanent magnet used here has a residual magnetic flux density of about 0.6 T (6000 Gs). As a precaution, in the present embodiment,
Although the auxiliary mechanism 2 is operated by utilizing the repulsive force between the N poles as described above, it goes without saying that the mutually repulsive magnetic poles may be replaced with the S pole.

As can be seen from FIG. 2 again, the fixed-side magnet band 13 is embedded in the main body of the cylindrical body 11 made of a non-magnetic material, but the surface on the rotor 12 side is not a curved surface. It is almost flat. Therefore, the same surface is not orthogonal to a straight line starting from the center of the tubular body 11 (the center of rotation of the rotor 12) and extending in the radial direction.

On the other hand, the movable magnet strip 14 has its base end side embedded in the main body of the rotating body 12 made of a non-magnetic material (the embedded base end portion is not shown). The surface on the 11 side is not a curved surface,
Like that, it is generally flat. Therefore, the same plane is also not orthogonal to the straight line along the radial direction of the rotor 12. Furthermore, when the overlapping area of the movable side magnet band 14 and the fixed side magnet band 13 is maximized, the surfaces of the two that face each other are never parallel to each other, and a certain angle (for example, about 10 to 30 degrees) is inevitable. It is set to be eggplant.

Further, in the present embodiment, the fixed side magnet band 13 and the movable side magnet band 14 are always partially opposed to each other.
As the permanent magnet constituting the above, a pseudo unipolar magnet in which the magnetic force of the magnetic pole (N pole) on one side is extremely strong was used. That is, here, the fixed-side magnet band 13 and the movable-side magnet band 14 are formed by arranging pseudo monopole magnets of a certain size in a line in a strip shape.

Now, in the present drive device constructed as described above, when the electric motor 1 is actuated, the output shaft 1a thereof is immediately output.
Is urged by the action of the auxiliary mechanism 2. As a result, the drive device as a whole exhibits high performance. In other words, even if the energy consumed per unit time, that is, the power consumption, is the same, the conventional device (that is, the electric motor alone)
It is possible to obtain a larger output.

Next, the second embodiment of the present invention will be specifically described with reference to FIG. It should be noted that this figure is a conceptual diagram of a drive device according to the present embodiment (hereinafter, referred to as a main drive device again). By the way, as can be said with respect to the other embodiments described later, the technical idea and the basic structure of the present drive device, and the operation and effect thereof are the same as those of the first embodiment. Therefore, in the following, differences from the first embodiment will be mainly described.

This drive device also includes an electric motor 21, an auxiliary mechanism 22, and a flywheel 23 as main components.
Of these, the electric motor 21 and the flywheel 23 are the same as those used in the first embodiment. On the other hand, the auxiliary mechanism 22
The appearance and function are very similar to those described above, but the internal structure is different. That is, in the above-described first embodiment, the fixed magnet strip has a straight shape, while the movable magnet strip has a spiral shape. However, in the present embodiment, both the fixed-side magnet band and the movable-side magnet band have a spiral shape.

More specifically, the auxiliary mechanism 22 is also
Generally, it is composed of a tubular body 31 and a rotor 32 rotatably housed in the tubular body 31. Then, on the inner peripheral surface of the cylindrical body 31, there is provided a fixed-side magnet band 33 configured by using a permanent magnet (pseudo-monopole magnet) (fixed-side magnet band 33).
Corresponds to the shaded area defined by the alternate long and short dash line in FIG. 4). The fixed magnet strip 33 has a spiral shape in which the surface facing the outer peripheral surface of the rotor 32 has the same magnetic pole, particularly only the N pole.

However, it goes without saying that the spiral formed by the fixed-side magnet band 33 extends along the axial direction of the rotation shaft 32a of the rotor 32, and here it always forms a constant angle with respect to the coaxial direction. It has adopted a mode. In this embodiment, only one fixed-side magnet band 33 is arranged on the cylindrical body 31 (of course, a plurality of fixed-side magnet bands 33 may be provided). Further, a non-magnetic region is formed between the vertically arranged portions of the fixed magnet strip 33.

On the other hand, on the outer peripheral surface of the rotor 32, there is provided a movable magnet band 34 which is also formed by using a permanent magnet (pseudo monopole magnet) (the movable magnet band 34 is shown in FIG. 4).
Medium, corresponding to the shaded area divided by the two-dot chain line).
The surface of the movable magnet strip 34 facing the inner peripheral surface of the cylindrical body 31 is of the same type as the magnetic poles present on the surface of the fixed magnet strip 33 facing the outer peripheral surface of the rotor 32, and The magnetic poles are in a spiral shape having the same magnetic pole, that is, only N poles. However, the spiral formed by the movable magnet strip 34 also extends along the axial direction of the rotary shaft 32a, and has the same direction as the spiral formed by the fixed magnet strip 33.

Furthermore, in the first embodiment described above, a total of six spiral movable magnetic bands are provided at equal intervals, but here, like the fixed magnetic band 33, one movable magnetic band 34 is provided. Only the rotor 32 is provided (of course, a plurality of threads may be used). A non-magnetic region is formed between the vertically arranged portions of the movable magnet strip 34. However, the cross-sectional shapes of the fixed-side magnet band 33 and the movable-side magnet band 34 (the cross-sectional shape of the portion that effectively functions) are the same as those in the first embodiment.

Even in the drive device constructed as described above, when the electric motor 21 is actuated, the rotation of the output shaft is immediately urged by the action of the auxiliary mechanism 22. As a result, the drive device as a whole exhibits high performance. In other words, even if the energy consumed per unit time, that is, the power consumption, is the same, the conventional device (that is, the motor alone)
It is possible to obtain a larger output.

Next, a third embodiment of the present invention will be described. The drive device according to the present embodiment is characterized in that the fixed-side magnet band has a spiral shape, while the movable-side magnet band has a straight shape. More specifically, this drive device is also the first
Similar to the embodiment and the second embodiment, as main constituent elements,
It is equipped with an auxiliary mechanism having a cylinder and a rotor, an electric motor, and a flywheel.

Of these, the inner peripheral surface of the cylindrical body constituting the auxiliary mechanism has magnetic poles having the same surface on the side facing the outer peripheral surface of the rotor,
In other words, one spiral (or plural, if necessary) spiral fixed-side magnet bands, which consist of only N poles and extend along the rotation axis direction of the rotor, are arranged. On the other hand, on the outer peripheral surface of the rotor, the surface on the side facing the inner peripheral surface of the tubular body is the same kind as the magnetic poles present on the surface on the side facing the rotor outer peripheral surface in the fixed side magnet band,
In addition, a plurality of straight movable magnet bands having the same magnetic pole, that is, only N poles are provided. However, all of the movable magnet strips are along the rotation axis direction.

Next, the fourth embodiment of the present invention will be specifically described with reference to FIG. It should be noted that this figure is a schematic view of the main parts of the drive device according to the present embodiment. The present drive device has a structure in which an interrupting mechanism is further added to that of the first embodiment. That is, an interrupting mechanism (clutch) 43 is interposed between the output shaft 41a of the electric motor 41 and the rotating shaft 42a of the rotor included in the auxiliary mechanism 42, and by using this, the output shaft 41a and the rotating shaft 42a are separated. Connected. Therefore,
If necessary, the transmission / reception of the rotational force can be interrupted by operating the connecting / disconnecting mechanism 43.

The interrupting mechanism 43 may be of mechanical type, fluid type, electromagnetic type or any other type. Further, as a modified example of the drive device according to the present embodiment, there may be mentioned a drive device of the second embodiment or the third embodiment, in which this interrupting mechanism is further added.

[0043]

According to the driving device of the present invention, even if the energy consumed per unit time, that is, the power consumption is the same, a larger output can be obtained as compared with the conventional device.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of a drive device according to a first embodiment of the present invention.

FIG. 2 shows a driving device according to a first embodiment of the present invention, FIG.
Cross-sectional view taken along line XX in FIG.

FIG. 3 is a perspective view of a rotor portion in the drive device according to the first embodiment of the present invention.

FIG. 4 is a conceptual diagram of a drive device according to a second embodiment of the present invention.

FIG. 5 is a schematic view of a main part of a drive device according to a fourth embodiment of the present invention.

[Explanation of symbols]

1 electric motor 1a Output shaft of electric motor 2 Auxiliary mechanism 3 flywheel 3a Device output shaft 11 cylinder 12 rotor 12a Rotating shaft of rotor 13 Fixed magnet band 14 Movable magnet band

Claims (7)

[Claims] 1. A cylindrical body, a rotor rotatably accommodated in the cylindrical body, and an electric motor connected to a rotation shaft of the rotor, the inner peripheral surface of the cylindrical body having the A straight fixed-side magnet band whose surface facing the outer peripheral surface of the rotor is composed of the same magnetic pole is provided with a plurality of strips along the axial direction of the rotating shaft, and the outer peripheral surface of the rotor is The rotating shaft, of which the surface on the side facing the inner peripheral surface of the cylindrical body is of the same kind as the magnetic poles present on the surface on the side facing the outer peripheral surface of the rotor in the fixed magnet band, and which is composed of the same magnetic pole. A driving device, wherein one or more spiral movable magnet bands extending along the axial direction of the driving device are provided. 2. A cylindrical body, a rotor rotatably housed in the cylindrical body, and an electric motor connected to a rotation shaft of the rotor, wherein the inner peripheral surface of the cylindrical body has the An outer peripheral surface of the rotor is provided with one or more spiral fixed-side magnet bands that extend in the axial direction of the rotating shaft and that have surfaces that face the outer peripheral surface of the rotor that are the same magnetic poles. The surface of the cylindrical body facing the inner peripheral surface is the same type as the magnetic pole existing on the surface of the fixed magnet band facing the outer peripheral surface of the rotor, and is composed of the same magnetic pole. A plurality of movable magnet strips are provided along the axial direction of the rotating shaft. 3. A cylindrical body, a rotor rotatably housed in the cylindrical body, and an electric motor connected to a rotation shaft of the rotor, the inner peripheral surface of the cylindrical body having the An outer peripheral surface of the rotor is provided with one or more spiral fixed-side magnet bands that extend in the axial direction of the rotating shaft and that have surfaces that face the outer peripheral surface of the rotor that are the same magnetic poles. In, the surface on the side facing the inner peripheral surface of the cylindrical body is the same kind as the magnetic pole existing on the surface on the side facing the outer peripheral surface of the rotor in the fixed magnet band, and is composed of the same magnetic pole. A driving device comprising one or more spiral movable magnet bands extending along the axial direction of the rotating shaft. 4. A cylinder, a rotor rotatably housed in the cylinder, an electric motor whose output shaft is connected to the rotary shaft of the rotor, and an output shaft of the electric motor and rotation of the rotor. And an interrupting mechanism that connects the output shaft and the rotating shaft, and interrupts the transmission of the rotating force as needed, between the output shaft and the rotating shaft. A plurality of straight fixed-side magnet bands whose surfaces facing the outer peripheral surface of the child are the same magnetic poles are provided along the axial direction of the rotating shaft, and the outer peripheral surface of the rotor is The surface of the rotating shaft facing the inner peripheral surface of the cylindrical body is of the same kind as the magnetic pole existing on the surface of the fixed magnet band facing the outer peripheral surface of the rotor, and is composed of the same magnetic pole. One or more spiral movable magnet bands extending along the axial direction are provided. That drive. 5. A cylinder, a rotor rotatably housed in the cylinder, an electric motor whose output shaft is connected to the rotary shaft of the rotor, and an output shaft of the electric motor and rotation of the rotor. And an interrupting mechanism that connects the output shaft and the rotating shaft, and interrupts the transmission of the rotating force as needed, between the output shaft and the rotating shaft. One or more spiral fixed-side magnet bands extending along the axial direction of the rotating shaft, each having the same magnetic pole on the surface facing the outer peripheral surface of the child, are provided on the outer peripheral surface of the rotor. Is a linear shape of which the surface on the side facing the inner peripheral surface of the cylindrical body is the same type as the magnetic pole existing on the surface on the side facing the outer peripheral surface of the rotor in the fixed magnet band, and which has the same magnetic pole. A plurality of movable side magnet bands are provided along the axial direction of the rotating shaft. That drive. 6. A cylinder, a rotor rotatably housed in the cylinder, an electric motor whose output shaft is connected to the rotary shaft of the rotor, and an output shaft of the electric motor and rotation of the rotor. And an interrupting mechanism that connects the output shaft and the rotating shaft, and interrupts the transmission of the rotating force as needed, between the output shaft and the rotating shaft. One or more spiral fixed-side magnet bands extending along the axial direction of the rotating shaft, each having the same magnetic pole on the surface facing the outer peripheral surface of the child, are provided on the outer peripheral surface of the rotor. The surface of the cylindrical body facing the inner peripheral surface is the same kind as the magnetic pole existing on the surface of the fixed magnet band on the side facing the outer peripheral surface of the rotor, and is composed of the same magnetic pole. One or more spiral movable magnet bands extending along the axial direction of the rotating shaft are provided. Drive apparatus according to claim and. 7. The fixed-side magnet band and / or the movable-side magnet band are either or both configured by using a quasi-monopolar magnet. The drive device according to.