JP2002247818A - Power saving drive system - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a drive system for a rotating machine which is excellent in practicality with improved energy efficiency and has a function of a generator. SOLUTION: A rotating machine 1 using a basic factor.
A driving system 20 for driving the rotating machine 10, a rotation position detection sensor 21 for detecting a relative rotation position around an axis between the rotor and the stator of the rotating machine 10, and an output signal of the rotation position detection sensor 21. 22, the energization of the excitation coil of the rotating machine is turned on / off, and when the energization of the excitation coil is turned off, the back electromotive force of the excitation coil is generated A ', B', C ′.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive system for driving a rotary machine such as a rotary type or a step motor driven by a DC pulse using a hybrid type magnet called a basic factor.
The present invention relates to a driving system for a rotating machine having a power generation function and capable of driving with low power consumption.

[0002]

2. Description of the Related Art Conventionally, there has been proposed an electric motor having a power generating function shown in side sectional views and plan views of FIGS. 11 and 12 (see Japanese Patent Application No. 11-149289).

FIG. 11 is a side sectional view for explaining the function of a conventional motor having a power generation function using a basic factor. FIG. 12 is a plan view showing an electric motor having a power generation function using the basic factor of FIG.

Referring to FIGS. 11 and 12, a rotary motor 100 is provided with three basic factors 110a ', 110b', and 110c 'around a rotary shaft 101 to form a rotor 120 as a first drive member. Have been. The rotors 120 are formed in the shape of the cross-shaped basic factors 110a 'and 110a' protruding in the radial direction so as to form 90 degrees with each other, and are formed adjacent to each other in the axial direction. 110a 'is a basic factor 110b' formed at a position rotated by 30 degrees around the axis.
And the same shape as the basic factors 110a 'and 110b'. The basic factors 110b 'are formed adjacent to each other in the axial direction, and the basic factors 110b' are formed at positions rotated by 30 degrees around the axis. And a basic factor 110c '.

[0005] Each of the basic factors 110a ', 11
0b ', 110c' are yokes 115a,
A bar-shaped permanent magnet part 117 is provided on the opening side of 115b and 115c.
a, 117b, and 117c are fixed in contact with each other. These permanent magnet portions 117a, 11
7b and 117c are permanent magnets 116a, 116b and 11
6c, 116a ', 116b', and 116c 'are sandwiched between magnetic bodies. The windings 111a, 111b, 111c wound in the circumferential direction respectively penetrate the inside of the four square-shaped basic part factors. Each of the basic factors 110a ',
110b 'and 110c' respectively connect the four outer end faces of the permanent magnet portion to the working faces 113a, 113b, 113c and 113, respectively.
d.

Each of these basic factors 110a
′, 110b ′ and 110c ′, respectively.
3a, 113b, 113c and 113d are respective basic factors 110a ', 110b' and 110c ',
110d 'are formed so as to be shifted from each other by 30 degrees around the axis, so that they are each shifted by 30 degrees. The working surface 113a, 113b, 113c, 113d of each basic factor has a working surface 113 outside the position at which the circumference formed by dividing the circumference formed by four is opposed and spaced apart from each other. Groups are provided, each of which has a central axis 1
Three basic factors 110 in the direction of 01
a, 110b, 110c, and 110d, respectively, and stators 130a, 130b, and 130 as second driving members.
c, 130d. These basic factors 110a, 110b, 110c, 110d are also permanent magnets 118a, 118a ', 118b, 118b', respectively.
It has a permanent magnet part 117a 'provided with 118c, 118c', and has inner basic factors 110a ', 110c.
It is formed in a square shape similar to b 'and 110c'.

Here, the stators 130a, 130b, 1
30c, 130d basic factors 110a,
The excitation coils 112a of 110b, 110c, 110d,
Since no current flows through 112b, 112c and 112d, the same function as that of a normal soft magnetic material is achieved.

In FIG. 11, first, second, and third coils 111a, 111b, 1 of respective basic factors 110a ', 110b', 110c 'of rotor 120 are shown.
11c, the basic factor 110b '→ the basic factor 110a' → the basic factor 11
0c '→ basic factor 110b ′ → basic factor 110a ′ → basic factor 1
Excitation is performed by sequentially passing a DC pulse current to 10c ', and the inner rotor 120 rotates by 30 degrees each time each pulse current is applied.

At the moment when the pulse of the first coil 111a is turned off, the permanent magnets 116a and 118a and the permanent magnets 116a and
And the permanent magnets 118a 'separate the magnetic fluxes of these permanent magnets and change the course to the closed magnetic path of each core. As a result, the first coil 112a 'and the magnetic flux of the permanent magnet 118a, and the first coil 112a' for generating electric power by linking the magnetic flux of the permanent magnet 118a 'and the first coil 112a'.
The output is obtained from the coils 112a and 112a '.

Similarly, at the moment when the pulse of the second coil 111b is turned off and at the moment when the pulse of the third coil 111c is turned off, the respective second coils 112
b, 112b ', the third coils 112c, 1
Outputs are obtained from 12c '.

Accordingly, the rotor 120 rotates and an output is obtained from the shaft 101 which is the central axis, and at the same time, the coils 112a, 112a ', 112b,
Extra outputs are obtained from 112b ', 112c, and 11c'. That is, the rotary motor 100 has a power generation function.

In such a conventional rotary motor 100, the coils 112a, 112a ', 112b, 112
The outputs from b ′, 112c, 112c ′ are first, second,
If the input is made again to the third coils 111a, 111b, 111c, the energy efficiency can be further improved.

[0013]

However, there is still room for improvement in the practicality of a conventional motor having a power generation function in terms of energy efficiency.

In addition, a conventional motor having a power generation function
Although it has a function as a generator, it does not show any measures to effectively use the generated power, and if means for that is provided, it is possible to use energy more effectively.

Accordingly, a first technical object of the present invention is to provide a drive system for a rotating machine having a power generation function with improved energy efficiency and excellent practicability.

A second technical problem of the present invention is to provide a drive system for a rotating machine that can effectively use generated power.

[0017]

According to the present invention, there is provided a drive system for driving a rotating machine using a basic factor, wherein a relative rotation position of a rotor and a stator of the rotating machine around an axis is provided. And based on the output signal of the rotational position detection sensor for detecting the rotational position, the power supply to the excitation coil of the rotating machine is turned ON / OFF, and when the power supply to the excitation coil is turned off, And a driver for taking out the back electromotive force of the exciting coil as a power generation output.

According to the present invention, in the power saving drive system, the rotating machine includes a cylindrical magnetic attraction member and a magnetic attraction member disposed around the cylindrical magnetic attraction member, and the magnetic attraction member is , M disk-shaped magnetic attraction members (however,
M is an integer of 2 or more). The magnetic attractive body is provided along a ring-shaped hollow portion and an outer cylindrical surface, and a ring penetrating radially inward to the hollow portion. A yoke made of a magnetic material having a groove, a ring-shaped permanent magnet mounted in the groove, an exciting coil mounted in the hollow portion, and the circumference of the outer cylindrical surface divided into n equal parts (however, n is an integer of 2 or more), and n pairs of protrusions made of a magnetic material provided so as to sandwich the permanent magnet in the axial direction, and the attracting member has a central axis of the magnetic attracting member. The magnetic attracting portions are arranged at positions that divide the concentric circle with respect to the center into n equal parts and extend in the axial direction so as to extend in the axial direction. Characterized by being shifted in the direction by a predetermined angle. Chikaraka drive system is obtained.

Further, according to the present invention, in the power saving drive system, m rotational position detecting sensors are provided so as to detect the rotational positions of the m magnetic attraction units, and the driver is provided with: Based on the output signal of each of the sensor units, the energization of the excitation coil of the corresponding magnetic attraction unit is turned ON / OFF, and when the energization of the corresponding excitation coil is turned OFF, M is provided so as to extract the back electromotive force of the exciting coil as a power generation output.

According to the present invention, in the power-saving drive system, the magnetic attraction member functions as a stator, and the magnetic attraction member functions as a rotor arranged around the stator. Power-saving drive system.

Further, according to the present invention, in any one of the above power saving driving systems, n is 8 and the power saving driving system is obtained.

Further, according to the present invention, in any one of the power-saving drive systems, m is 3 and the power-saving drive system is obtained.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing the embodiments of the present invention, the principle of the electric motor of the present invention will be described to facilitate understanding of the present invention.

FIG. 1A is a perspective view showing a basic factor used in the rotating machine of the present invention, and FIG.
FIG. 2 is an exploded perspective view of the basic factor of FIG. FIG. 1C is a front view of FIG.
FIG. 2D is a front view of FIG.

Referring to FIGS. 1A to 1D, the basic factor 50 includes a permanent magnet section 60 and an electromagnet section 7.
0. The permanent magnet section 60 is formed by sandwiching both sides of a hard magnetic body 51 such as a neodymium magnet (Nd-Fe-B) in the magnetization direction with a soft magnetic body 52 such as pure iron.

On the other hand, the electromagnet portion 70 is formed of a soft magnetic material such as a U-shaped pure iron having a base portion 55 and a pair of leg portions 56 protruding from both ends of the base portion 55 to one side. Alternatively, it includes a yoke 54 and a coil 7 made of a copper wire wound around a base 55 of the core 54.

As best shown in FIGS. 1 (a) and 1 (d), joining surfaces 61 and 62 are provided between the permanent magnet portion 60 and both end surfaces of the core 54 of the electromagnet portion 70. Each is formed.

FIGS. 2A to 2C show FIGS. 1A to 1D.
6 is a front view for explaining the operation principle of the basic factor 50 shown in FIG.

Referring to FIG. 2A, when the electromagnet 70 is not energized, the magnetic lines of force of the permanent magnet 60 are
As shown by the arrow 58, there is almost no leakage of the magnetic flux into the surrounding air just by going around the closed magnetic path of the basic factor 50. Therefore, the joining surfaces 61 and 62 are strongly adsorbed. At this time, the attraction force of the joining surfaces 61 and 62 is formed by the permanent magnet portion 60. This state is called a first state.

Next, as shown in FIG. 2B, when a current for generating a larger number of magnetic fluxes than the permanent magnet portion 60 is applied to the electromagnet portion 70 with the same poles facing each other, The magnetic lines of force of the permanent magnet section 60 are released into the air as indicated by an arrow 59 when the magnetic lines of force of the electromagnet section 70 are pushed back from the closed magnetic path to above the joining surfaces 61 and 62 and exceed the saturated state of the permanent magnet. Is done. At this time, if the number of magnetic fluxes of the electromagnet unit 70 is sufficiently large, the magnetic lines of force emitted into the air are a combination of the permanent magnet unit 60 and the electromagnet unit 70.

Therefore, the attraction force of the joining surfaces 61 and 62 at this time is formed only by the electromagnet portion 70. This state is called a second state.

Next, as shown in FIG. 2C, a current for causing the electromagnet section 70 to generate the same amount of magnetic flux as the magnetic flux of the permanent magnet section 60 is applied so that the same poles as the permanent magnet section 60 are formed. A description will be given of a case where the power is applied to face the opposite side and there is more room than the saturated state of the residual magnetic flux density of the basic factor 50 itself. Also in this case, the same poles are arranged so as to face each other as described above.

In this case, the joining surfaces 61, 62
A neutralized state where neither suction nor repulsion occurs. This is because both the magnetic field lines of the permanent magnet section 60 and the magnetic field lines of the electromagnet section 70
It means that they do not communicate with each other at 1,62. If the number of magnetic fluxes of the permanent magnet portion 60 and the electromagnet portion 70 exceeding the saturation state of the residual magnetic flux density of the basic factor 50 itself is the same and large, the joining surfaces 61, 6
2 has a repulsive force, and each line of magnetic force is emitted into the air as a leakage magnetic flux. This state is called a third state.

In the third state, as shown in FIG. 3, the operating surface 63 of the basic factor 50 is set to X,
A movable or fixed suction member (Y) 8 close to X
Assume 0. The adsorption member (Y) 80 is made of a soft magnetic material such as pure iron.

In the state of FIG. 3, the value of the current supplied to the electromagnet unit 70 is α. It should be noted that the value of α becomes smaller as the air gap between the basic factor 50 and the adsorbing member (Y) 80 is reduced in the following state at the point where the joining surfaces 61 and 62 are disabled. This is because the magnetic field lines of the permanent magnet portion 60 do not exceed the joining surfaces 61 and 62 to form a closed magnetic path in the basic factor 50, but instead form a magnetic path through the air gap with respect to the attraction member (Y) 80. This means that a suction force is generated on the operation surface (X) 63. At this time, α applied to the electromagnet unit 70 is
Since the amount of magnetic force of the permanent magnet portion 60 is sufficient to interrupt the magnetic line of force, the more easily the magnetic force line of the permanent magnet portion 60 forms a magnetic path with the movable member 80, in other words, the attraction force of the action surface (X) 63 increases. The value of α decreases as the value increases. The limit of the attraction force of the working surface (X) 63 naturally limits the performance of the permanent magnet. This state is called a fourth state.

However, as in the second state, the electromagnet section 7
If a large amount of current is applied to zero, the attractive force of the working surface (X) 63 becomes a combination of the magnetic lines of force of the permanent magnet unit 60 and the magnetic lines of force of the electromagnet unit 70. To get worse.

In the fourth state, the working surface (X) 1
The conditions for increasing the suction force of No. 3 and reducing the value of α are the following three (1) to (3).

(1) The air gap of the working surface (X) 63 is reduced.

(2) The yoke portion of the permanent magnet section 60 and the soft magnetic material portion of the attraction member (Y) 80 are made of a material having a higher saturation speed density than the core or yoke portion of the electromagnet.

(3) The distance L2 between the magnetic path formed with the attraction member (Y) via the permanent magnet portion 60 and the air gap is made shorter than the distance L1 between the closed magnetic path within the basic factor 50. Needless to say, in order to increase the attraction force of the working surface X, the performance (Br, BH) of the permanent magnet portion 60 itself is improved. In addition, a material replacing the neodymium magnet, for example, a superconducting magnet can be used.

In the actual design, when the distance (width) in the magnetizing direction of the permanent magnet portion 60 itself is L, the length of the permanent magnet portion 60 is XL, and the sectional area is Z, L, XL
Can calculate an appropriate value from the Z, Br, BH curve graph and the permeance coefficient. Thereby, the optimal dimensions of the permanent magnet portion 60 and the attraction member (Y) 80 are obtained. The electromagnet section 70 compatible with the permanent magnet section 60 may be designed in consideration of the first to fourth states.

The configuration in which the basic factor and the attraction member (Y) 80 of the present invention are combined is different from the configuration in which the electromagnet 60 and the attraction member 80 are combined with each other. , Volume, coil thickness, tan number, etc.

For comparison, the input power amount when the attraction force on each working surface is the same between the device according to the present invention and, as a comparative example, the device having only the electromagnet portion 70 and the attraction member 80 without the permanent magnet portion 20 (W) In the present invention,
It has been found that only one third or less is required as compared with the comparative example having no permanent magnet part 60.

Assuming a reluctance motor to which this comparative example is applied, the energy conversion efficiency is usually about 30%. However, if the reluctance motor using the basic factor has an input power of 30% or less than that of the comparative example, an output exceeding the electric input can be obtained. Is converted to.

Then, regarding the embodiment of the present invention,
This will be described with reference to FIGS.

FIG. 4 is a partially cutaway sectional view showing a basic structure of a rotating machine according to an embodiment of the present invention. FIG. 5 is a schematic side sectional view of the rotating machine of FIG. FIG. 6 is a block diagram showing the configuration of the drive system according to the embodiment of the present invention.
FIG. 7 is a circuit diagram of a driver of the drive system of FIG.
FIG. 8 is a diagram which is provided for explaining the operation of the rotating machine shown in FIGS. 4 and 5.

As shown in FIG. 4, the rotating machine 10 includes an attraction member 11 as a stator and a magnetic attraction member 12 as a rotor rotatably provided around the attraction member. The attraction member 11 includes first, second, and third magnetic attraction members 11a, 11b, and 11c having a columnar shape arranged in the axial direction.

The magnetic attraction members 12 are parallel to each other at a position where the circumference of the cylinder is divided into eight equal parts by dividing the cylindrical magnetic material 12 a extending in the axial direction with a substantially trapezoidal cross section obtained by dividing the cylinder in the circumferential direction. Are arranged side by side. This magnetic attraction member 12
Is fixed to an inner cylindrical surface of a cylindrical holder (support member) (not shown) that forms an outer shell of the rotating machine 10.

One magnetic attraction body 11a has a columnar shape, and has a ring-shaped hollow portion 18a provided along the circumferential direction of a circle centered on the central axis 19 and an outer portion from the ring-shaped hollow portion 18a. A ring-shaped groove 19 penetrating through the hollow portion 18a even if the width is smaller than the axial length of the hollow portion 18a toward the cylindrical surface.
a, a ring-shaped permanent magnet 14a mounted in a ring-shaped groove 19a, and a permanent magnet 14a.
And a coil 15a wound in a circumferential direction around a hollow portion 18a sealed by the coil. Also, the yoke portion 13a
Outside, a pair of projections 16a, 16b, 16c, 1 made of a soft magnetic plate having an arc-shaped cross section along the outer cylindrical surface of the yoke 13a so as to sandwich the permanent magnet 14a in the axial direction.
6d, 16e, 16f, 16g, 16h, and 17a,
17b, 17c, 17d, 17e, 17f, 17g, 1
7h are provided at equal intervals in the circumferential direction for each pair. In other words, the magnetic attraction body 11a constitutes one basic factor on the surface in the radial direction including the protruding portion, and substantially eight basic factors are arranged around the axis at equal angular intervals in the circumferential direction. They have the same configuration.

The other magnetic attraction members 11b, 11c
Has the same configuration as the magnetic attraction body 11a. These magnetic attraction members 11b and 11c are superposed in the axial direction so as to be shifted from each other at equal angular intervals in the circumferential direction. In addition, the permanent magnets 14a, 14b, 14c of each magnetic attraction body 11a, 11b, 11c and the yoke portions 13a, 1
3b, 13c, coils 15a, 15b, 15c, protrusions 16a, 16b, 16c, 16d, 16e, 16f, 1
6g, 16h, and 17a, 17b, 17c, 17d,
17e, 17f, 17g, 17h, hollow portions 18a, 18
b, 18c, when not specifically called, the permanent magnet 14, the yoke 13, the coil 15, the protrusion 1
6, and 17, and the hollow portion 18.

Referring to FIG. 6, the drive system 20 comprises:
Three shaft position detection sensors 21 for detecting the shaft position of each suction member of the rotating machine 10, and power generation outputs A ′, B ′, and C ′ are taken out based on the outputs of the shaft position detection sensors 21,
Three drivers 1a that convert power supplied from a power supply into DC pulses having a predetermined pulse width and supply drive powers A, B, and C to magnetic attraction bodies 11a, 11b, and 11c of the motor, respectively. , 1b, 1c (these are collectively indicated by reference numeral 1).

As shown in FIG. 7, the driver 1 supplies power from a power supply to one end of the coil 15 of the rotating machine 10 via the diode 3. The coil 15 of the rotating machine 10
The diode 7 is connected to one end of the power supply and serves as an output end of the generated power. The switching transistor 4 is connected to the other end of the coil 15 of the rotating machine, and the base end is grounded. The detection signal 22 from the sensor 21 is input to the switching transistor 4.

The other end of the coil 15 is connected to one end of the diode 5 in the opposite direction, and the other end is grounded.
The other end of the diode 5 is connected so that one end of the diode 6 is in the forward direction, and the other end is connected to the power generation output end.

Therefore, when the signal input is ON, the power from the power supply is supplied to the coil 15 and the input signal is turned OFF.
In this case, the current to the coil 15 is turned off, and the back electromotive force generated from the coil 15 at this time is taken out as the power generation output 8.

Table 1 below shows the relationship between the switching of the magnetic pole by the coil 15 of the rotating machine 10 and the electromotive force.
Indicates ON and “0” indicates OFF.

[0056]

[Table 1]

FIGS. 8A, 8B, 8C and 9
(A), (b), (c), FIG. 10 (a), (b),
(C) is a schematic sectional view used for explaining the operation of the rotating machine.

The magnetic poles are supplied with electric powers A, B, and C based on signals from the axis sensor (position) 21 by magnetic attraction units 11a, 11b, 11b.
c, power generation outputs A ′, B ′, and C ′ at that time are shown, respectively.

8 (a), (b) and (c), the magnetic attraction member 12
Rotate to the state shown in FIGS. 9A, 9B, and 9C, and further, the magnetic attraction member 12 rotates with respect to the attraction member 11, and FIG. The states shown in (b) and (c) are obtained.

Specifically, first, as shown in FIG. 8 (a), in the magnetic attraction body 11a, the protruding portion 16a and the opposing magnetic material 12a are provided so as to oppose each other in the radial direction. When the surfaces start to overlap, the power supplied to the magnetic attraction body is turned on.

At this time, as shown in FIGS. 8B and 8C, in the magnetic attraction body 11b, the protrusion 16
When the rear end of the magnetic material 12a (the rear end in the clockwise direction in the figure) passes through the front end in the rotation direction of a (17a) (the front end in the counterclockwise direction in the figure), it is turned off.

As shown in FIGS. 9A and 9C,
In the magnetic attraction body 11b, when the rear end of the magnetic material 12a has passed the front end of the protrusion 16a, it is turned off,
It is in the OFF state until it begins to overlap the front end of the next protruding portion.

As shown in FIG. 9B, the magnetic attraction body 11
Turns on when the front ends of the magnetic material 16a and the magnetic material 16h start to overlap with each other.

As shown in FIGS. 10 (a) and 10 (b), the magnetic attraction body 11b is turned off when the rear end of the magnetic material 12a passes the front end of the protrusion 16h, and the next protrusion is performed. The OFF state is maintained until the magnetic material 12a starts to overlap the front end of the portion 16g.

At the same time, as shown in FIG. 10C, in the magnetic attraction body 11c, the protrusion 16h and the magnetic material 12a
Is turned on again when it starts to overlap with the front end of.

As described above, each magnetic attraction member 11a, 11
At the moment when the power supplied to the coils 15a, 15b, 15c of the coils b, 11c is turned off, counter-electromotive force is generated in the coils 15a, 15b, 15c due to the magnetic induction, thereby generating power A ', B' respectively. , C ′ are taken out.

[0067]

As described above, according to the present invention,
A drive system for a rotating machine using a basic factor with improved energy efficiency and excellent practicability can be provided.

Further, according to the present invention, it is possible to provide a drive system for a rotating machine that uses a basic factor and further has a function of a generator.

Further, according to the present invention, it is possible to provide a drive system for a rotating machine capable of effectively using the generated power.

[Brief description of the drawings]

FIG. 1A is a perspective view showing a basic factor used for an electric motor of the present invention. (B) is an exploded perspective view of the basic factor of (a). (C) is a front view of (b). (D) is a front view of (a).

FIGS. 2A to 2C are front views for explaining the operation principle of the basic factor 50 shown in FIGS. 1A to 1D.

FIG. 3 is a front view for explaining the operation principle of the basic factor 50 shown in FIGS. 1 (a) to 1 (d).

FIG. 4 is a partially cutaway sectional view showing a basic structure of the rotating machine according to the embodiment of the present invention.

FIG. 5 is a schematic sectional side view of the rotating machine of FIG. 4;

FIG. 6 is a block diagram showing a configuration of a drive system according to an embodiment of the present invention.

FIG. 7 is a circuit diagram of a driver of the drive system of FIG. 6;

8 (a), 8 (b) and 8 (c) are schematic cross-sectional views for explaining the operation of the rotating machine of FIGS. 4 and 5. FIG.

FIGS. 9A, 9B, and 9C are schematic cross-sectional views used to explain the operation of the rotating machine shown in FIGS. 4 and 5;

10 (a), (b) and (c) are FIGS. 4 and 5
FIG. 7 is a schematic cross-sectional view used for describing the operation of the rotating machine.

FIG. 11 is a side sectional view for explaining a function of a conventional motor having a power generation function using a basic factor.

FIG. 12 is a plan view showing a motor having a power generation function using the basic factor of FIG. 11;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Driver 3, 5, 6, 7 Diode 4 Switching transistor 8 Power generation output 10 Rotary machine 11 Attraction member 11a, 11b, 11c Magnetic attraction body 12 Magnetic attraction member 12a, 12b, 12c, 12d, 12e, 12f, 1
2g, 12h Magnetic material 13a, 13b, 13c Yoke part 14a, 14b, 14c Permanent magnet 15, 15a, 15b, 15c Coil 16a, 16b, 16c, 16d, 16e, 16f, 1
6g, 16h, 17a, 17b, 17h Projecting portion 18a Hollow portion 19 Center axis 19a Groove 20 Drive system 21 Axis position detecting sensor 50 Basic factor 51 Hard magnetic body 54 Core or yoke 55 Base 56 Leg 57 Coil 60 Permanent magnet 70 Electromagnet part 61, 62 Joining surface 63 Working surface 80 Suction member 100 Rotary motor 101 Rotating shaft (shaft) 110a ', 110b', 110c 'Basic factor 111a, 111b, 111c, 112a, 112a'
112b, 112b ', 112c, 112c' Coil 113a, 113b, 113c, 113d Working surface 115a, 115b, 115c Yoke 116a, 116a ', 116b, 116b', 116
c, 116c ', 118a, 118a', 118b, 1
18b ', 118c, 118c' Permanent magnet 117a, 117b, 117c Permanent magnet part 120 Rotor 130, 130a, 130b, 130c, 130d
Stator

Continued on the front page (71) Applicant 500456899 Environmental City Consulting Co., Ltd. 6302 Tamura, Hiratsuka-shi, Kanagawa (72) Inventor Sanshiro Ogino 2-20-1 Futaba 2-chome, Shinagawa-ku, Tokyo 405 2nd Umeda Building 405 (72) Inventor Yasuzumi Ochiai 3-32-2-306 Takaishi, Aso-ku, Kawasaki City, Kanagawa Prefecture (72) Inventor Yoshitake Nishi 2-39-7, Daisawa, Setagaya-ku, Tokyo (72) Inventor Kazuya Oguri 5, Kamizuruma, Sagamihara City, Kanagawa Prefecture -6-1 Rene Higashi Rinkan A-111 (72) Inventor Tetsu Nakatsuka 2-31-3 Takamori, Isehara-shi, Kanagawa F-term (reference) 5H590 AA02 CA16 CC01 CC24 EA10 FC26 HA11 5H621 BB01 BB02 GA02 GA12 HH03

Claims (6)

[Claims] 1. A driving system for driving a rotating machine using a basic factor, comprising: a rotating position detecting sensor for detecting a relative rotating position of a rotor and a stator of the rotating machine around an axis; Based on the output signal of the rotation position detection sensor, the energization to the excitation coil of the rotating machine is turned ON / OFF, and when the energization to the excitation coil is turned off, the back electromotive force of the excitation coil is used as a power generation output. A power saving drive system, comprising: a driver to be taken out. 2. The power-saving drive system according to claim 1, wherein the rotating machine includes a cylindrical magnetic attraction member and a magnetic attraction member disposed around the cylindrical magnetic attraction member, wherein the magnetic attraction member has a circular shape. A plate-like magnetic attraction body is superposed in the axial direction of m pieces (where M is an integer of 2 or more), and the magnetic attraction body is provided along a ring-shaped hollow portion and an outer cylindrical surface, A yoke made of a magnetic material having a ring groove penetrating radially inward to the hollow portion,
A ring-shaped permanent magnet mounted in the groove, an exciting coil mounted in the hollow portion, and a position where the circumference of the outer cylindrical surface is equally divided by n (where n is an integer of 2 or more). And n pairs of protrusions made of a magnetic material provided so as to sandwich the permanent magnet in the axial direction. The attraction member is arranged at a position that divides a concentric circle about the center axis of the magnetic attraction member into n equal parts. The magnetic attracting portions adjacent to each other in the axial direction are offset from each other by a predetermined angle in the circumferential direction. A power saving drive system characterized by the following. 3. The power-saving drive system according to claim 2, wherein m rotational position detection sensors are provided so as to detect the rotational position of each of the m magnetic attraction units, and the driver is provided with each of the m. Based on the output signal of the sensor unit,
When the energization to the excitation coils of the corresponding magnetic attraction units is turned ON / OFF, and when the energization to the respective excitation coils is turned OFF, the back electromotive force of each of the excitation coils is used as a power generation output. A power saving drive system characterized in that m units are provided so as to be respectively taken out. 4. The power saving drive system according to claim 3, wherein the magnetic attraction member acts as a stator, and the magnetic attraction member acts as a rotor disposed around the stator. Electric drive system. 5. The power-saving drive system according to claim 3, wherein n is 8. 6. The power-saving drive system according to claim 3, wherein m is 3. 6. The power-saving drive system according to claim 3, wherein m is 3.