JP2016082776A - Drive controller for motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drive controller for a motor, which is capable of avoiding a dead point, is excellent in starting property and is inexpensive.SOLUTION: An A-phase annular coil 61a of an A-phase stator is connected in series to a MOS transistor Qa of an A-phase drive circuit part 71. A series circuit of the MOS transistor Qa and the A-phase annular coil 61a is then connected to a DC power source G, and a power supply voltage of the DC power source G is applied to the A-phase annular coil 61a by a turning on/off operation of the MOS transistor Qa. A B-phase annular coil 61b of a B-phase stator is connected in series to a MOS transistor Qb of a B-phase drive circuit part 72. A series circuit of the MOS transistor Qb and the B-phase annular coil 61b is then connected to the DC power source G, and the power supply voltage of the DC power source G is applied to the B-phase annular coil 61b by a turning on/off operation of the MOS transistor Qb.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a motor drive control device.

  2. Description of the Related Art Conventionally, an outer rotor type motor is a Landel type motor in which windings are arranged between a SPM rotor having a permanent magnet attached to the surface of a rotor core and a pair of stator core bases having a plurality of claw-shaped magnetic poles at equal circumferential intervals. A brushless motor including a stator has been proposed (for example, Patent Document 1). In this brushless motor, the winding disposed between the pair of stator core bases has two types of windings laminated in the axial direction. The two types of windings are applied with different power sources of the first system and the second system, respectively.

JP 2005-192384 A

  By the way, this brushless motor is a two-phase motor in which a Landel-type stator is configured by a two-layer structure of a first system winding and a second system winding. Therefore, since it is a two-phase motor, there is a dead point and there is a problem in startability.

  By the way, windings are arranged between a Landel-type rotor in which field magnets are arranged between a pair of rotor cores having a plurality of claw-shaped magnetic poles in the circumferential direction and a pair of stator cores having a plurality of claw-shaped magnetic poles in the circumferential direction. There is a so-called multi-rundel type motor composed of the rundel type stator. A similar problem occurs in a two-layer, two-phase multi-Landel motor obtained by tandemizing this multi-Randel motor.

In addition, in a two-layer, two-phase multi-Landel type motor, the effect of leakage magnetic flux in the gap portion between adjacent claw-shaped magnetic poles is large, so that effective magnetic flux is reduced and high torque cannot be expected.
The present invention has been made to solve the above problems, and an object of the present invention is to provide an inexpensive motor drive control device that can avoid a dead point and has excellent startability.

  A motor drive control device for solving the above problems includes an A-phase rotor in which an A-phase field magnet is disposed between a pair of A-phase rotor core bases having a plurality of claw-shaped magnetic poles at equal circumferential intervals; A two-layer rotor in which a B-phase rotor having a B-phase field magnet disposed between a pair of B-phase rotor core bases having a plurality of claw-shaped magnetic poles at equal intervals in the circumferential direction, A winding is arranged between a pair of A-phase stator core bases having claw-shaped magnetic poles and a pair of B-phase stator core bases having a plurality of claw-shaped magnetic poles at equal intervals in the circumferential direction. A motor drive control device comprising a two-layer stator in which a B-phase stator is laminated, the first switching for applying the DC power to a DC power source and a winding disposed in the A-phase stator Element and B-phase stator A second switching element for applying the DC power source to the arranged winding, and opening and closing the first switching element and the second switching element, so that the winding of the A-phase stator and the B-phase stator And a control circuit for energizing the windings from one direction with the DC power source.

  According to this configuration, a simple circuit configuration that uses the first switching element and the second switching element for energizing the windings of the A-phase stator and the B-phase stator from one direction, respectively, and opens and closes them. Thus, a two-phase power source for a two-layer, two-phase multi-Landel motor can be generated.

  In the above configuration, the winding of the A-phase stator and the first switching element are connected in series, and the winding of the B-phase stator and the second switching element are connected in series. The DC power supply is applied to the series circuit.

According to this configuration, a two-phase power source for a two-layer, two-phase multi-Landel motor can be generated with a simple circuit.
A motor drive control device for solving the above problems includes an A-phase rotor in which an A-phase field magnet is disposed between a pair of A-phase rotor core bases having a plurality of claw-shaped magnetic poles at equal circumferential intervals; A two-layer rotor in which a B-phase rotor having a B-phase field magnet disposed between a pair of B-phase rotor core bases having a plurality of claw-shaped magnetic poles at equal intervals in the circumferential direction, A winding is arranged between a pair of A-phase stator core bases having claw-shaped magnetic poles and a pair of B-phase stator core bases having a plurality of claw-shaped magnetic poles at equal intervals in the circumferential direction. The B-phase stator and the B-phase stator are wound in the first-phase annular winding and the second-system stator, respectively. Drive control of a motor consisting of two annular windings A first switching element for applying the DC power source to a DC power source, a first system winding of the A-phase stator, and a first system winding of the B-phase stator, A second switching element for applying the DC power to a second system winding of the A-phase stator, a second system winding of the B-phase stator, the first switching element, and the second switching element Control circuit for energizing the first phase winding of the A phase and B phase stators and the second system winding of the A phase and B phase stators from one direction by the DC power source And with.

  According to this configuration, the first switching element and the second switching element for energizing the first system winding and the second system winding respectively from one direction are used, and a simple circuit configuration for opening and closing the first switching element and the second switching element has two layers. A two-phase power source for a two-phase multi-Randell motor can be generated.

  In the above configuration, the first system winding and the first switching element are connected in series, and the second system winding and the second switching element are connected in series, A DC power supply is applied.

According to this configuration, a two-phase power source for a two-layer, two-phase multi-Landel motor can be generated with a simple circuit.
In the above configuration, the control circuit controls the opening and closing of the first switching element and the second switching element so that energization with different phases is performed between the first system winding and the second system winding.

According to this configuration, it is possible to achieve a desired motor performance such as low ripple and high torque in a two-layer, two-phase multi-Landel motor.
In the above configuration, the energizations having different phases have a phase difference of 20 degrees to 60 degrees.

  According to this configuration, for a two-layer, two-phase multi-Landel type motor, setting the phase difference near 20 degrees results in low ripple, and setting the phase difference near 40 degrees improves high torque motor performance. realizable.

  ADVANTAGE OF THE INVENTION According to this invention, a dead point can be avoided and it can be excellent in starting property, and an inexpensive motor can be provided.

The perspective view of the motor of a 1st embodiment. Similarly, the exploded perspective view of the motor which cut a part of stator. Similarly, the exploded front view of the motor seen from the radial direction which cut a part of stator. Similarly, the perspective view of a single motor. Similarly, sectional drawing of the single motor seen from radial direction. Similarly, the exploded perspective view of the rotor which comprises a single motor. Similarly, the disassembled perspective view of the stator which comprises a single motor. Similarly, the drive control circuit diagram of a motor. Similarly, (a) is a waveform diagram of the A phase input voltage supplied to the A phase motor, and (b) is a waveform diagram of the B phase input voltage supplied to the B phase motor. The disassembled perspective view of the motor which cut | disconnected a part of stator of 2nd Embodiment. Similarly, the drive control circuit diagram of a motor. Similarly, (a) is a waveform diagram of the first system input voltage supplied to the first system annular winding, and (b) is a waveform diagram of the second system input voltage supplied to the second system annular winding. Similarly, the graph which shows the torque constant with respect to the phase difference of a 1st system input voltage and a 2nd system input voltage, and a ripple rate.

(First embodiment)
Hereinafter, a first embodiment of a motor will be described with reference to FIGS.
FIG. 1 is an overall perspective view of a motor M of this embodiment, and a rotor 2 is fixed to a rotating shaft 1. A stator 3 fixed to a motor housing (not shown) is disposed outside the rotor 2.

  1, the motor M is a two-layer, two-phase multi-Landel motor in which a multi-Landel type A-phase motor Ma and a multi-Landel type B-phase motor Mb are sequentially stacked from the top. As shown in FIG. 4, the A-phase motor Ma and the B-phase motor Mb are each formed by a single multi-Landel motor M1.

(Rotor 2)
As shown in FIG. 2, the rotor 2 of the motor M is a rotor having a two-layer two-phase structure in which an A-phase rotor 2a and a B-phase rotor 2b having a Landell structure are stacked. The A-phase rotor 2a and the B-phase rotor 2b have the same configuration, and are each composed of a first rotor core 10, a second rotor core 20, and a field magnet 30, as shown in FIG.

(First rotor core 10)
As shown in FIG. 6, the first rotor core 10 has a first rotor core base 11 formed of an annular plate-shaped electromagnetic steel plate. A through hole 12 is formed at the center position of the first rotor core base 11 for penetrating and fixing the rotary shaft 1. Further, on the outer peripheral surface of the first rotor core base 11, eight first rotor side claw-shaped magnetic poles 13 having the same shape are projected radially outward, and the tip thereof is directed to the axial second rotor core 20 side. It is bent.

  Here, in the first rotor side claw-shaped magnetic pole 13, a portion protruding radially outward from the outer peripheral surface 11 a of the first rotor core base 11 is referred to as a first rotor side base portion 13 x, and a tip portion bent in the axial direction is referred to as a first portion. It is called 1 rotor side magnetic pole part 13y. And when the 1st rotor side base 13x is seen from an axial direction, the shape is formed in the trapezoid shape which becomes narrow as it goes to a radial direction outer side. Further, the shape of the first rotor-side magnetic pole portion 13y when viewed from the radial direction is a quadrangular shape. Furthermore, the circumferential end surfaces 13a and 13b of the first rotor-side claw-shaped magnetic pole 13 composed of the first rotor-side base portion 13x and the first rotor-side magnetic pole portion 13y are both flat surfaces.

  The first rotor-side magnetic pole part 13y bent in the axial direction has a fan-shaped cross section in the direction perpendicular to the axis. The radial outer side surface 13c and the radial inner side surface 13d of the first rotor-side magnetic pole portion 13y are concentric with the outer peripheral surface 11a of the first rotor core base 11 with the central axis O of the rotating shaft 1 as the center when viewed from the axial direction. It is the circular arc surface which makes.

  Moreover, the angle in the circumferential direction of the first rotor side base portion 13x of each first rotor side claw-shaped magnetic pole 13, that is, the angle between the base end portions of the circumferential end surfaces 13a and 13b and the central axis O of the rotary shaft 1 is It is set smaller than the angle of the gap between the adjacent first rotor side claw-shaped magnetic poles 13.

(Second rotor core 20)
As shown in FIG. 6, the second rotor core 20 has a second rotor core base 21 that is the same material and shape as the first rotor core 10 and is formed in an annular plate shape. A through hole 22 is formed at the center position of the second rotor core base 21 for penetrating and fixing the rotary shaft 1. Further, eight second rotor side claw-shaped magnetic poles 23 are projected radially outward on the outer peripheral surface of the second rotor core base 21 at equal intervals, and the tips thereof are bent toward the first rotor core 10 side in the axial direction. Yes.

  Here, in the second rotor-side claw-shaped magnetic pole 23, a portion protruding radially outward from the outer peripheral surface 21a of the second rotor core base 21 is referred to as a second rotor-side base portion 23x, and a tip portion bent in the axial direction is referred to as a first portion. This is referred to as a 2-rotor side magnetic pole portion 23y. And when the 2nd rotor side base 23x is seen from an axial direction, the shape is formed in the trapezoid shape which becomes narrow as it goes to a radial direction outer side. The shape of the second rotor-side magnetic pole portion 23y when viewed from the radial direction is a quadrangular shape. Furthermore, the circumferential end surfaces 23a and 23b of the second rotor-side claw-shaped magnetic pole 23 composed of the second rotor-side base portion 23x and the second rotor-side magnetic pole portion 23y are both flat surfaces.

  The second rotor-side magnetic pole part 23y bent in the axial direction has a fan-shaped cross section in the direction perpendicular to the axis. The radial outer side surface 23c and the radial inner side surface 23d are arcuate surfaces that are concentric with the outer peripheral surface 21a of the second rotor core base 21 with the central axis as the center when viewed from the axial direction.

  Further, the angle in the circumferential direction of the second rotor-side base portion 23x of each second rotor-side claw-shaped magnetic pole 23, that is, the angle between the base end portions of the circumferential end surfaces 23a and 23b and the central axis O of the rotating shaft 1 is It is set smaller than the angle of the gap between the adjacent second rotor side claw-shaped magnetic poles 23.

  In the second rotor core 20, the second rotor side claw-shaped magnetic pole 23 of the second rotor core 20 is compared with the first rotor core 10 in the first rotor side claw-shaped magnetic pole 13 of the first rotor core 10 when viewed from the axial direction. The arrangement is fixed so as to be located between them. At this time, the second rotor core 20 is assembled to the first rotor core 10 such that the field magnet 30 is disposed between the first rotor core 10 and the second rotor core 20 in the axial direction.

(Field magnet 30)
In this embodiment, the field magnet 30 is an annular plate-like permanent magnet made of a sintered ferrite magnet. As shown in FIG. 6, the field magnet 30 has a through hole 32 penetrating the rotary shaft 1 at the center position. The one side surface 30a of the field magnet 30 abuts the opposing surface 11b of the first rotor core base 11, and the other side surface 30b of the field magnet 30 abuts the opposing surface 21b of the second rotor core base 21, respectively. The magnet 30 is sandwiched and fixed between the first rotor core 10 and the second rotor core 20.

The outer diameter of the field magnet 30 is set to coincide with the outer diameters of the first and second rotor core bases 11 and 21, and the thickness is set to a predetermined thickness.
That is, as shown in FIG. 5, the field magnet 30 is disposed between the first rotor core 10 and the second rotor core 20. At this time, the front end surface 13e of the first rotor side claw-shaped magnetic pole 13 and the opposing surface 21b of the second rotor core base 21 are flush with each other, and the front end surface 23e of the second rotor side claw-shaped magnetic pole 23 and the first rotor core base. 11 facing surfaces 11b are flush with each other.

  As shown in FIG. 5, the field magnet 30 is magnetized in the axial direction, and is magnetized so that the first rotor core 10 side is an N pole and the second rotor core 20 side is an S pole. Therefore, by this field magnet 30, the first rotor side claw-shaped magnetic pole 13 of the first rotor core 10 functions as an N pole, and the second rotor side claw-shaped magnetic pole 23 of the second rotor core 20 functions as an S pole.

  As described above, the A-phase rotor 2 a and the B-phase rotor 2 b configured by the first and second rotor cores 10 and 20 and the field magnet 30 are so-called Randel type rotors using the field magnet 30. It becomes. In the A-phase rotor 2a and the B-phase rotor 2b, the first rotor-side claw-shaped magnetic poles 13 that are N poles and the second rotor-side claw-shaped magnetic poles 23 that are S poles are alternately arranged in the circumferential direction. Becomes a rotor with 16 poles (8 pairs of poles).

  As shown in FIGS. 2 and 3, the A-phase rotor 2a and the B-phase rotor 2b are stacked in the axial direction to form a two-layer, two-phase Landell-type rotor 2. Here, the A-phase rotor 2a and the B-phase rotor 2b are stacked and fixed to the rotating shaft 1 as follows.

  Specifically, the A-phase rotor 2a and the B-phase rotor 2b are composed of the second rotor core 20 (the opposite surface 21c of the second rotor core base 21) of the A-phase rotor 2a and the second rotor core 20 (second rotor core) of the B-phase rotor 2b. The base 21 is laminated so that the opposite surface 21c) contacts.

  Further, as shown in FIG. 3, the arrangement angle of the B-phase rotor 2b with respect to the A-phase rotor 2a is shifted by a predetermined angle in the counterclockwise direction when viewed from the axial A-phase motor Ma side. .

  More specifically, the second rotor-side claw-shaped magnetic pole 23 (first rotor) of the B-phase rotor 2b facing the second rotor-side claw-shaped magnetic pole 23 (first rotor-side claw-shaped magnetic pole 13) of the A-phase rotor 2a. Side claw-shaped magnetic poles 13) are stacked while being shifted by a predetermined electrical angle θ2 in the counterclockwise direction.

(Stator 3)
As shown in FIG. 2, the stator 3 disposed on the outer side in the radial direction of the rotor 2 is a two-layer two-phase structure in which an A-phase stator 3 a and a B-phase stator 3 b having a Landell structure are stacked. The A-phase stator 3a and the B-phase stator 3b are sequentially laminated in the axial direction so as to face the corresponding A-phase rotor 2a and B-phase rotor 2b on the radially inner side.

  The A-phase stator 3a and the B-phase stator 3b have the same configuration, and are each composed of a first stator core 40, a second stator core 50, and a coil portion 60, as shown in FIG.

(First stator core 40)
As shown in FIG. 7, the first stator core 40 has a first stator core base 41 formed of an annular plate-shaped electromagnetic steel plate. The first stator core base 41 is a facing surface 41b facing the second stator core 50, and a cylindrical first stator side cylindrical outer wall 42 extends toward the axial second stator core 50 side on the radially outer side thereof. Is formed. Further, eight first stator side claw-shaped magnetic poles 43 are projected radially inwardly on the inner peripheral surface 41a of the first stator core base 41, and the tips thereof are bent toward the second stator core 50 side in the axial direction. Is formed.

  Here, in the first stator side claw-shaped magnetic pole 43, a portion protruding radially inward from the inner peripheral surface 41a of the first stator core base 41 is called a first stator side base portion 43x, and a tip portion bent in the axial direction is called a first stator side base portion 43x. This is referred to as a first stator side magnetic pole portion 43y. And when the 1st stator side base part 43x is seen from an axial direction, it is formed in the trapezoid shape which becomes narrow as it goes to radial direction inner side. Further, the shape of the first stator side magnetic pole portion 43y when viewed from the radial direction is a quadrangular shape. Further, the circumferential end surfaces 43a and 43b of the first stator side claw-shaped magnetic pole 43 including the first stator side base portion 43x and the first stator side magnetic pole portion 43y are both flat surfaces.

  The first stator side magnetic pole portion 43y bent in the axial direction has a fan-shaped cross section in the direction perpendicular to the axis. The radially outer side surface 43c and the radially inner side surface 43d of the first stator side magnetic pole portion 43y are concentric with the inner peripheral surface 41a of the first stator core base 41 with the central axis O as the center when viewed from the axial direction. Surface.

  The circumferential angle of the first stator side base portion 43x of each first stator side claw-shaped magnetic pole 43, that is, the angle formed between the base end portions of the circumferential end surfaces 43a and 43b and the central axis O of the rotating shaft 1 is adjacent. It is set smaller than the angle of the gap between the first stator side claw-shaped magnetic poles 43.

(Second stator core 50)
As shown in FIG. 7, the second stator core 50 has an annular plate-like second stator core base 51 having the same material and shape as the first stator core base 41. The second stator core base 51 is a facing surface 51b that faces the first stator core 40, and a cylindrical second stator-side cylindrical outer wall 52 extends from the radially outer portion thereof. The second stator side cylindrical outer wall 52 comes into contact with the first stator side cylindrical outer wall 42 in the axial direction.

  On the inner peripheral surface 51a of the second stator core base 51, eight second stator side claw-shaped magnetic poles 53 are protruded radially inward at equal intervals, and the tips thereof are bent toward the first stator core 40 in the axial direction. ing.

  Here, in the second stator side claw-shaped magnetic pole 53, a portion protruding radially inward from the inner peripheral surface 51a of the second stator core base 51 is referred to as a second stator side base portion 53x, and a tip portion bent in the axial direction is referred to as a second stator side base portion 53x. This is referred to as a second stator side magnetic pole portion 53y. And when the 2nd stator side base 53x is seen from an axial direction, it is formed in the trapezoid shape which becomes narrow as it goes to radial direction inner side. Further, the shape of the second stator side magnetic pole portion 53y when viewed from the radial direction is a quadrangular shape. Furthermore, circumferential end surfaces 53a and 53b of the second stator side claw-shaped magnetic pole 53 composed of the second stator side base portion 53x and the second stator side magnetic pole portion 53y are both flat surfaces.

  The second stator-side magnetic pole portion 53y that is bent in the axial direction has a fan-shaped cross section in the direction perpendicular to the axis. The radially outer side surface 53c and the radially inner side surface 53d of the second stator side magnetic pole portion 53y are concentric with the inner peripheral surface 51a of the second stator core base 51 around the central axis O when viewed from the axial direction. Surface.

  The circumferential angle of the second stator side base portion 53x of each second stator side claw-shaped magnetic pole 53, that is, the angle between the base end portions of the circumferential end surfaces 53a and 53b and the central axis O of the rotating shaft 1 is adjacent. It is set smaller than the angle of the gap between the second stator side claw-shaped magnetic poles 53.

  That is, by forming in this way, the shape of the second stator core 50 becomes the same shape as the first stator core 40. Then, the first stator side cylindrical outer wall 42 formed on the first stator core base 41 and the second stator side cylindrical outer wall 52 formed on the second stator core base 51 are brought into contact with each other. At this time, the second stator core 50 includes the second stator side cylindrical outer wall 52 so that each second stator side claw-shaped magnetic pole 53 is positioned between the first stator side claw-shaped magnetic poles 43 as viewed from the axial direction. One stator side cylindrical outer wall 42 is brought into contact.

  The first stator side claw-shaped magnetic pole 43 is set at a position where the front end surface 43e of the first stator side magnetic pole portion 43y is flush with the opposing surface 51b of the second stator core base 51. Similarly, the second stator side claw-shaped magnetic pole 53 is set at a position where the front end surface 53e of the second stator side magnetic pole portion 53y is flush with the opposing surface 41b of the first stator core base 41.

  In this state, an annular space having a quadrangular cross section is formed which is defined by the opposing surfaces 41b and 51b of the first and second stator core bases 41 and 51 and the inner peripheral surfaces of the first and second stator side cylindrical outer walls 42 and 52. The And the coil part 60 is arrange | positioned and fixed in the cyclic | annular space of the cross-sectional square shape.

(Coil 60)
As shown in FIGS. 5 and 7, the coil portion 60 has an annular winding 61. The circumference of the annular winding 61 is covered with a coil insulating layer 62 with a resin mold. For convenience of explanation, the coil insulating layer 62 is omitted in FIG.

  Further, as shown in FIG. 5, the outer surface on the first stator core 40 side in the axial direction of the coil portion 60 is in contact with the facing surface 41 b of the first stator core base 41, and is in the axial direction of the coil portion 60. The outer surface on the second stator core 50 side comes into contact with the facing surface 51 b of the second stator core base 51.

The thickness (axial length) of the coil portion 60 is set to a predetermined thickness according to the axial length of the first stator side claw-shaped magnetic pole 43 (second stator side claw-shaped magnetic pole 53). Has been.
That is, as shown in FIG. 5, the coil portion 60 is disposed between the first stator core 40 and the second stator core 50. At this time, the front end surface 43e of the first stator side claw-shaped magnetic pole 43 and the opposing surface 51b of the second stator core base 51 are flush with each other, and the front end surface 53e of the second stator side claw-shaped magnetic pole 53 and the first stator core base 41 are aligned. The opposite surface 41b is flush with the opposite surface 41b.

  Further, at this time, the axial length from the anti-facing surface 41 c of the first stator core base 41 to the anti-facing surface 51 c of the second stator core base 51 is from the anti-facing surface 11 c of the first rotor core base 11 to the second rotor core base 21. It is made to correspond with the length of the axial direction to the anti-opposing surface 21c.

  Therefore, the axial length of the first stator side claw-shaped magnetic pole 43 (second stator side claw-shaped magnetic pole 53) is the axial length of the first rotor side claw-shaped magnetic pole 13 (second rotor side claw-shaped magnetic pole 23). Match the length.

  In FIG. 7, the drawing terminal of the annular winding 61 is omitted in the drawing for convenience of explanation. In accordance with this, notches for drawing out terminal mounting portions formed on the cylindrical outer walls 42 and 52 of the first and second stator cores 40 and 50 to the outside are omitted in the drawing.

  As described above, the A-phase stator 3a and the B-phase stator 3b configured by the first and second stator cores 40 and 50 and the coil section 60 are so-called Landel type stators. More specifically, the A-phase stator 3a and the B-phase stator 3b are configured such that the first and second stator side claw-shaped magnetic poles 43 and 53 are sometimes mutually connected by an annular winding 61 between the first and second stator cores 40 and 50. A 16-pole stator having a so-called Randel structure that excites different magnetic poles.

  As shown in FIGS. 2 and 3, the A-phase stator 3a and the B-phase stator 3b are laminated in the axial direction to form a two-layer two-phase Landell-type stator 3. The A-phase stator 3a and the B-phase stator 3b are stacked as follows and fixed to the motor housing.

  Specifically, the A-phase stator 3a and the B-phase stator 3b are composed of the second stator core 50 (the opposite surface 51c of the second stator core base 51) of the A-phase stator 3a and the second stator core 50 (second stator core) of the B-phase stator 3b. The base 51 is laminated so that the opposite surface 51c) contacts.

  Further, as shown in FIG. 3, the arrangement angle of the B-phase stator 3b with respect to the A-phase stator 3a is shifted by a predetermined angle in the clockwise direction when viewed from the axial A-phase motor Ma side.

  Specifically, the first stator side claw-shaped magnetic pole 43 (second stator) of the B-phase stator 3b facing the first stator side claw-shaped magnetic pole 43 (second stator side claw-shaped magnetic pole 53) of the A-phase stator 3a. Side claw-shaped magnetic poles 53) are laminated while being shifted by a predetermined electrical angle θ1 in the clockwise direction.

  Here, as viewed from the axial A-phase stator side, the electrical angle θ1 in the clockwise direction of the B-phase stator 3b with respect to the A-phase stator 3a and the electrical power in the counterclockwise direction of the B-phase rotor 2b with respect to the A-phase rotor 2a described above. The angle θ2 is set so that the following relational expression is established.

θ1 + | θ2 | = 90 degrees (electrical angle)
In order to avoid the dead point of the two-phase motor and improve the startability, the electrical angles θ1 and θ2 are set based on the above relational expression.

  In this embodiment, the electrical angle θ2 in the counterclockwise direction of the B-phase rotor 2b with respect to the A-phase rotor 2a is set to −45 degrees (counterclockwise direction), and the clockwise direction of the B-phase stator 3b with respect to the A-phase stator 3a. Is set to 45 degrees (clockwise direction).

In this embodiment, the electrical angle θ2 is set to −45 degrees and the electrical angle θ1 is set to 45 degrees (clockwise direction). However, the electrical angle θ2 may be appropriately changed within the range in which the above relational expression is satisfied.
The A-phase input voltage va of the two-phase AC power supply is applied to the annular winding 61 of the A-phase stator 3a, and the B-phase input of the two-phase AC power supply is applied to the annular winding 61 of the B-phase stator 3b. A voltage vb is applied.

Next, the drive control circuit of the two-layer, two-phase multi-Randell type motor M configured as described above will be described with reference to FIG.
As shown in FIG. 8, the drive control circuit includes an A-phase drive circuit unit 71, a B-phase drive circuit unit 72, and a control circuit 73 that controls the drive of both the drive circuit units 71 and 72.

(A phase drive circuit unit 71)
The A-phase drive circuit unit 71 includes a MOS transistor Qa, and an annular winding 61 (hereinafter referred to as an A-phase annular winding 61a) of the A-phase stator 3a is connected in series to the MOS transistor Qa. The series circuit of the MOS transistor Qa and the A-phase annular winding 61a is connected to the DC power supply G, and a 12-volt DC power supply is supplied to the A-phase annular winding 61a by the on / off (open / close) operation of the MOS transistor Qa. A G power supply voltage is applied.

  That is, by turning on the MOS transistor Qa, the power supply voltage of the DC power supply G (referred to as the A-phase input voltage va) is applied to the A-phase annular winding 61a, and the current flows in the arrow direction shown in FIG. Flowing. The current flowing through the A-phase annular winding 61a flows in the clockwise direction when viewed from the axial A-phase motor Ma side.

  On the contrary, by turning off the MOS transistor Qa, the A-phase input voltage va from the DC power supply G is cut off with respect to the A-phase annular winding 61a, and no current flows through the A-phase annular winding 61a.

Accordingly, when a current flows in the A-phase annular winding 61a, the current always flows in the direction of the arrow shown in FIG. 8, and the current flows in the clockwise direction when viewed from the axial A-phase motor Ma side.
(B-phase drive circuit unit 72)
The B-phase drive circuit unit 72 includes a MOS transistor Qb, and an annular winding 61 (hereinafter referred to as a B-phase annular winding 61b) of the B-phase stator 3b is connected in series to the MOS transistor Qb. The series circuit of the MOS transistor Qb and the B-phase annular winding 61b is connected to the DC power supply G. When the MOS transistor Qb is turned on / off (opening / closing), the B-phase annular winding 61b is connected to the power supply of the DC power supply G. A voltage is applied.

  That is, by turning on the MOS transistor Qb, the power supply voltage of the DC power supply G (referred to as the B-phase input voltage vb) is applied to the B-phase annular winding 61b, and the current flows in the arrow direction shown in FIG. Flowing. The current flowing through the B-phase annular winding 61b flows in the clockwise direction when viewed from the axial A-phase motor Ma side.

  On the contrary, by turning off the MOS transistor Qb, the B-phase input voltage vb from the DC power supply G is cut off with respect to the B-phase annular winding 61b, and no current flows through the B-phase annular winding 61b.

Therefore, when a current flows in the B-phase annular winding 61b, it always flows in the direction of the arrow shown in FIG. 8, and the current flows in the clockwise direction when viewed from the axial A-phase motor Ma side.
(Control circuit 73)
The control circuit 73 generates a drive signal Sa to be output to the gate terminal of the MOS transistor Qa of the A phase drive circuit unit 71. That is, the control circuit 73 turns on / off the MOS transistor Qa to generate the drive signal Sa for energizing the A-phase annular winding 61a in the direction of the arrow shown in FIG.

  FIG. 9A shows a voltage waveform of the A-phase input voltage va applied to the A-phase annular winding 61a. Here, when the MOS transistor Qa is turned on and the A-phase input voltage va (= + 12 volts) is applied to the A-phase annular winding 61a, the current flowing through the A-phase annular winding 61a is the axial A-phase motor. It flows in the clockwise direction when viewed from the Ma side.

Conversely, when the MOS transistor Qa is turned off and the A-phase input voltage va is cut off in the A-phase annular winding 61a, no current flows through the A-phase annular winding 61a.
The control circuit 73 generates a drive signal Sb that is output to the gate terminal of the MOS transistor Qb of the B-phase drive circuit unit 72. That is, the control circuit 73 turns on and off the MOS transistor Qb, and generates the drive signal Sb that energizes the B-phase annular winding 61b in the direction of the arrow shown in FIG.

  FIG. 9B shows a voltage waveform of the B-phase input voltage vb applied to the B-phase annular winding 61b. Here, when the MOS transistor Qb is turned on and the B-phase input voltage vb (= + 12 volts) is applied to the B-phase annular winding 61b, the current flowing through the B-phase annular winding 61b is the axial A-phase motor. It flows in the clockwise direction when viewed from the Ma side.

Conversely, when the MOS transistor Qb is turned off and the B-phase input voltage vb is cut off in the B-phase annular winding 61b, no current flows through the B-phase annular winding 61b.
Here, as shown in FIGS. 9 (a) and 9 (b), in this embodiment, the control circuit 73 uses the A-phase and B-phase input voltages va, applied to the A-phase and B-phase annular windings 61a and 61b, respectively. Drive signals Sa and Sb having the same vb frequency are generated. In addition, the control circuit 73 generates drive signals Sa and Sb that turn off the MOS transistor Qb when the MOS transistor Qa is turned on, and turn on the MOS transistor Qb when the MOS transistor Qa is turned off. That is, the drive signals Sa and Sb are complementary signals.

  Thus, the two-layer two-phase Landel-type stator 3 is applied to the two-phase AC power source, that is, the A-phase input voltage va applied to the A-phase annular winding 61a and the B-phase annular winding 61b. A B-phase input voltage vb is applied.

Next, the operation of the motor M configured as described above will be described.
Now, the A phase input voltage va and the B phase input voltage vb are applied to the motor M. At this time, a two-layer, two-phase multi-Landel motor with a simple configuration using two MOS transistors Qa and Qb provided in the A-phase driving circuit unit 71 and the B-phase driving circuit unit 72 and turning them on and off. M two-phase power sources (A-phase input voltage va and B-phase input voltage vb) are generated.

  When the A-phase input voltage va is applied to the annular winding 61a of the A-phase stator 3a and the B-phase input voltage vb is applied to the annular winding 61b of the B-phase stator 3b, a rotating magnetic field is generated in the stator 3, The rotor 2 is rotationally driven.

  At this time, the stator 3 has a two-layer structure of an A-phase stator 3a and a B-phase stator 3b in accordance with the A-phase input voltage va and the B-phase input voltage vb. Correspondingly, the rotor 2 has a two-layer structure of an A-phase rotor 2a and a B-phase rotor 2b. Thereby, in each of the stators 3a, 3b and the rotors 2a, 2b of each phase, the stators facing each other along the axial direction can receive the magnetic flux of the field magnet 30, respectively, and the output can be increased.

  By the way, for example, in a Landell type rotor in which U-phase, V-phase, and W-phase rotors are stacked in a three-layer structure, the U-phase, V-phase, and W-phase rotor field magnets have two phase rotors. The field magnets have the same magnetization direction, and the remaining one-phase field magnet has the opposite magnetization direction. For this reason, in the relationship between the U-phase, V-phase, and W-phase rotors, there is a difference in magnitude in the magnetic fluxes of the claw-shaped magnetic poles of each phase, and the magnetic balance is largely disturbed as a whole.

  In contrast, in the present embodiment, the rotor 2 has a two-layer structure of an A-phase rotor 2a and a B-phase rotor 2b. In the A-phase rotor 2a and the B-phase rotor 2b, the magnetization directions of the respective field magnets 30 are opposite to each other, and the claw-shaped magnetic poles 13 and 23 are in the relationship between the A-phase rotor 2a and the B-phase rotor 2b. The disturbance of the magnetic balance is much smaller than that of the Landell type having a three-layer three-phase structure.

  Therefore, since the disturbance of the magnetic balance of the claw-shaped magnetic poles 43 and 53 formed on the opposing A-phase stator 3a and B-phase stator 3b can be reduced, the motor performance can be improved.

  Moreover, in the present embodiment, the electrical angle θ1 at which the B-phase stator 3b is shifted in the clockwise direction with respect to the A-phase stator 3a, and the electrical angle θ2 at which the B-phase rotor 2b is shifted in the counterclockwise direction with respect to the A-phase rotor 2a. Was set to a value determined by θ1 + | θ2 | = 90 degrees (electrical angle).

  More specifically, the stator 3 shifts the B-phase stator 3b with respect to the A-phase stator 3a by a predetermined electrical angle θ1 (= 45 degrees) in the clockwise direction when viewed from the axial A-phase motor Ma side. On the other hand, the rotor 2 shifts the B-phase rotor 2b with respect to the A-phase rotor 2a by a predetermined electrical angle θ2 (= 45 degrees) in a counterclockwise direction when viewed from the axial A-phase motor Ma side.

As a result, it is possible to avoid dead points that cannot be started in the two-phase motor and to improve startability.
Moreover, the movement of the rotor 2 with respect to the switching of the first and second stator side claw-shaped magnetic poles 43 and 53 due to the respective currents flowing through the A-phase and B-phase annular windings 61a and 61b of the A-phase and B-phase stators 3a and 3b. Since the amount (rotation amount) can be increased, the number of rotations can be increased.

As described above in detail, the first embodiment has the following effects.
(1) According to the above embodiment, the motor M is a two-layer, two-phase motor, that is, the stator 3 has a two-stage structure of the A-phase and B-phase stators 3a and 3b, and the rotor 2 correspondingly. The A-phase and B-phase rotors 2a and 2b have the same two-stage structure. The A-phase input voltage va was applied to the A-phase stator 3a, and the B-phase input voltage vb was applied to the B-phase stator 3a. In each phase of the stators 3a, 3b and the rotors 2a, 2b, the stators 3a, 3b opposed in the axial direction can individually receive the magnetic fluxes of the field magnets 30 of the rotors 2a, 2b, respectively. Therefore, the output of the motor M can be increased.

  In addition, the A-phase rotor 2a and the B-phase rotor 2b are configured in a two-layer structure, and the field magnets 30 of the A-phase rotor 2a and the field magnet 30 of the B-phase rotor 2b have opposite magnetization directions. It comprised so that it might become. Therefore, the disturbance of the magnetic balance of the claw-shaped magnetic poles 13 and 23 can be reduced by the A-phase rotor 2a and the B-phase rotor 2b, and the motor performance can be improved.

  (2) According to the above embodiment, the stator 3 shifts the B-phase stator 3b with respect to the A-phase stator 3a by an electrical angle θ1 (= 45 degrees) in the clockwise direction when viewed from the axial A-phase motor Ma side. It was. Moreover, the rotor 2 shifted the electrical angle θ2 (= 45 degrees) from the A-phase rotor 2a in the counterclockwise direction when the B-phase rotor 2b is viewed from the axial A-phase motor Ma side.

As a result, it is possible to avoid dead points that cannot be started in the two-phase motor and to improve startability.
Moreover, the movement of the rotor 2 with respect to the switching of the first and second stator side claw-shaped magnetic poles 43 and 53 due to the respective currents flowing through the A-phase and B-phase annular windings 61a and 61b of the A-phase and B-phase stators 3a and 3b. Since the amount (rotation amount) can be increased, the number of rotations can be increased.

  (3) According to the above-described embodiment, the two MOS transistors Qa and Qb provided in the A-phase driving circuit unit 71 and the B-phase driving circuit unit 72 are used, and the two are turned on and off with a simple and inexpensive configuration. A two-phase power source for a multi-rundel type motor M with two layers can be generated.

(Second Embodiment)
Next, a second embodiment of the motor M will be described.
In addition, since this embodiment differs only in the structure of the annular winding 61 of the coil part 60 of the A-phase and B-phase stators 3a and 3b of the first embodiment, the different parts will be described in detail for convenience of explanation. To do.

  As shown in FIG. 10, in the A-phase and B-phase stators 3a and 3b, a coil insulating layer 62 is provided in an annular space having a quadrangular cross section formed between the first and second stator core bases 41 and 51 of each phase. The covered first system annular winding 61x and second system annular winding 61y are respectively provided.

  The first system annular winding 61x and the second system annular winding 61y of each phase are laminated in the axial direction. The first system annular winding 61x of each phase is arranged on the first stator core 40 side of the phase, and the second system annular winding 61y of each phase is arranged on the second stator core 50 side of the phase.

  FIG. 11 shows a drive control circuit of the motor M that energizes the first system annular winding 61x and the second system annular winding 61y of each phase. In FIG. 11, reference numeral “61x” indicates the whole of the A-phase and B-phase first-system annular windings 61x connected in series, and reference numeral “61y” indicates the A-phase and B-phase second-system annular windings 61y. The whole is connected in series.

  In this embodiment, the A-phase and B-phase first-system annular windings 61x are connected in series, and the A-phase and B-phase second-system annular windings 61y are connected in series so that the A-phase and B-phase are connected. The first system annular winding 61x and the A-phase and B-phase second system annular winding 61y are driven and controlled.

  The A-phase and B-phase first system annular windings 61x are connected in parallel, and the A-phase and B-phase second system annular windings 61y are connected in parallel, so that the A-phase and B-phase first systems The annular winding 61x and the A-phase and B-phase second system annular winding 61y may be driven and controlled.

Alternatively, the drive control may be performed for each of the first system annular winding 61x of the A phase and the B phase and for each of the second system annular winding 61y of the A phase and the B phase.
The first system annular winding 61x is connected in series with the MOS transistor Qa to form a first system drive circuit unit 81. The series circuit of the MOS transistor Qa and the first system annular winding 61x is connected to a DC power supply G of 12 volts, and the first system annular winding 61x is connected to the first system annular winding 61x by the on / off (open / close) operation of the MOS transistor Qa. The power supply voltage of the DC power supply G is applied.

  That is, by turning on the MOS transistor Qa, the power supply voltage of the DC power supply G (referred to as the first system input voltage vx) is applied to the first system annular winding 61x, and the direction of the arrow shown in FIG. Current flows. The current flowing in the first system annular winding 61x flows in the clockwise direction when viewed from the axial A-phase motor Ma side.

  On the other hand, by turning off the MOS transistor Qa, the first system input voltage vx from the DC power supply G is cut off with respect to the first system annular winding 61x, and no current flows through the first system annular winding 61x. .

  Accordingly, in the first system annular winding 61x, when a current flows, the current always flows in the arrow direction shown in FIG. 11, and the current flows in the clockwise direction when viewed from the axial A-phase motor Ma side.

  On the other hand, the second system ring winding 61y is connected in series with four MOS transistors Qb to form a second system drive circuit unit 82. The series circuit of the MOS transistor Qb and the second system annular winding 61y is connected to the DC power supply G, and the DC power supply G is connected to the second system annular winding 61y by the on / off (open / close) operation of the MOS transistor Qb. The power supply voltage is applied.

  That is, by turning on the MOS transistor Qb, the power supply voltage of the DC power supply G (referred to as the second system input voltage vy) is applied to the second system annular winding 61y, and the direction of the arrow shown in FIG. Current flows. The current flowing in the second system annular winding 61y flows in the clockwise direction when viewed from the axial A-phase motor Ma side.

  On the contrary, by turning off the MOS transistor Qb, the second system input voltage vy from the DC power supply G is cut off with respect to the second system annular winding 61y, and no current flows through the second system annular winding 61y. .

  Accordingly, in the second system annular winding 61y, when a current flows, the current always flows in the direction of the arrow shown in FIG. 11, and the current flows clockwise as viewed from the axial A-phase motor Ma side.

  The control circuit 83 generates a drive signal Sa that is output to the gate terminal of the MOS transistor Qa of the first system drive circuit unit 81. That is, the control circuit 83 turns on and off the MOS transistor Qa, and generates the drive signal Sa for energizing the first system annular winding 61x in the direction of the arrow shown in FIG.

  FIG. 12A shows a voltage waveform of the first system input voltage vx applied to the first system annular winding 61x. Here, when the MOS transistor Qa is turned on and the first system input voltage vx (= + 12 volts) is applied to the first system annular winding 61x, the current flowing through the first system annular winding 61x is in the axial direction. It flows in the clockwise direction when viewed from the A phase motor Ma side.

On the other hand, when the MOS transistor Qa is turned off and the first system input voltage vx is cut off in the first system annular winding 61x, no current flows through the first system annular winding 61x.
In addition, the control circuit 83 generates a drive signal Sb that is output to the gate terminal of the MOS transistor Qb of the second system drive circuit unit 82. That is, the control circuit 83 turns on and off the MOS transistor Qb, and generates the drive signal Sb that energizes the second system annular winding 61y in the direction of the arrow shown in FIG.

  FIG. 12B shows a voltage waveform of the second system input voltage vy applied to the second system annular winding 61y. Here, when the MOS transistor Qb is turned on and the second system input voltage vy (= + 12 volts) is applied to the second system annular winding 61y, the current flowing through the second system annular winding 61y is in the axial direction. It flows in the clockwise direction when viewed from the A phase motor Ma side.

Conversely, when the MOS transistor Qb is turned off and the second system input voltage vy is cut off in the second system annular winding 61y, no current flows through the second system annular winding 61y.
Here, as shown in FIGS. 12A and 12B, in the present embodiment, the control circuit 83 applies the first and second system input voltages applied to the first and second system annular windings 61x and 61y, respectively. Drive signals Sa and Sb having the same frequency of vx and vy are generated.

In addition, the control circuit 83 controls the first and second system drive circuit units 81 and 82 to shift the phase of the second system input voltage vy with respect to the first system input voltage vx.
More specifically, as shown in FIGS. 12A and 12B, in the present embodiment, after the first system input voltage vx falls from +12 volts to 0 volts, the first phase difference θd1 is delayed. The two-system input voltage vy rises from 0 volt to +12 volt.

  As described above, the two-layer two-phase Landel-type stator 3 includes a two-phase AC power source, that is, the first system input voltage vx applied to the first system annular winding 61x and the second system annular winding 61y. The second system input voltage vy applied to is applied.

Next, the operation of the second embodiment will be described.
Now, the first system input voltage vx and the second system input voltage vy are applied to the motor M. At this time, two MOS transistors Qa and Qb provided in the first system drive circuit unit 81 and the second system drive circuit unit 82 are used, and a two-layer, two-phase multi-Landel type with a simple configuration for turning them on and off. The two-phase power source (the first system input voltage vx and the second system input voltage vy) of the motor M is generated.

  The first system input voltage vx is input to the first system annular winding 61x of the A phase and B phase stators 3a, 3b, and the second system input is input to the second system annular winding 61y of the A phase and B phase stators 3a, 3b. When each voltage vy is applied, a rotating magnetic field is generated in the stator 3 and the rotor 2 is rotationally driven.

  At this time, as shown in FIGS. 12 (a) and 12 (b), in the relationship between the first and second system input voltages vx and vy, after the first system input voltage vx falls from 12 volts to 0 volt, With the phase difference θd1, the second system input voltage vy rises from 0 to 12 volts.

Incidentally, the phase difference θd1 was changed by 0 to 60 degrees, and the ripple rate and the torque constant with respect to the phase difference θd1 at that time were verified. FIG. 13 shows the verification result.
As is clear from FIG. 13, the ripple rate indicated by the characteristic line L1 decreases from 0 degree to around 20 degrees, and increases to 60 degrees after the phase difference θd1 exceeds 20 degrees.

  As is apparent from FIG. 13, the torque constant indicated by the characteristic line L2 increases as the phase difference θd1 is increased from 0 degrees to around 40 degrees, and the phase difference θd1 is 40 degrees. If it exceeds, it will decrease gradually.

  From this, it can be seen that a low-ripple motor M can be realized by setting the phase difference θd1 near 20 degrees, and a high-torque motor M can be realized by setting the phase difference θd1 near 40 degrees. That is, the motor M having desired motor performance can be realized by appropriately changing and setting the phase difference θd1 in the range of 20 degrees to 60 degrees.

As described above in detail, the second embodiment has the following effects in addition to the effects (1) and (2) of the first embodiment.
(1) According to the second embodiment, the two MOS transistors Qa and Qb provided in the first system drive circuit unit 81 and the second system drive circuit unit 82 are used, and this is simple and inexpensive. With the configuration, a two-phase power source of a two-layer, two-phase multi-Landel motor M can be generated.

  (2) According to the second embodiment, after the first system input voltage vx falls from 12 volts to 0 volts, the phase difference θd1 is changed to the phase difference θd1 and the second system input voltage vy is changed from 0 volts to 12 volts. I got to stand on the bolt.

  A low ripple motor M can be realized by setting the phase difference θd1 near 20 degrees, and a high torque motor M can be realized by setting the phase difference θd1 near 40 degrees. That is, the motor M having desired motor performance can be realized by appropriately changing and setting the phase difference θd1 in the range of 20 degrees to 60 degrees.

The above embodiment may be modified as follows.
In the first embodiment, the control circuit 73 controls the B-phase input voltage vb to rise to 12 volts when the A-phase input voltage va falls to 0 volts. This may be controlled so that the B-phase input voltage vb rises to 12 volts through a predetermined phase difference after the A-phase input voltage va falls to 0 volts.

  In the above embodiment, in the motor M in which the A-phase rotor 2a and the B-phase rotor 2b are 16-pole Landel-type rotors, and the A-phase stator 3a and the B-phase stator 3b are 16-pole Landel-type stators. there were.

  This is embodied in a motor M in which the A-phase rotor 2a and the B-phase rotor 2b are 8-pole Landel-type rotors, and the A-phase stator 3a and the B-phase stator 3b are 8-pole Landel-type stators. Also good. Further, the A-phase rotor 2a and the B-phase rotor 2b are 24-pole Landel-type rotors, and the A-phase stator 3a and the B-phase stator 3b are 24-pole Landell-type stators, such as a motor M, and other magnetic poles. It may be applied to several motors.

  In the above embodiment, the field magnets 30 of the A-phase rotor 2a and the B-phase rotor 2b are formed of ferrite sintered magnets, but are not limited thereto. For example, the field magnet 30 may be formed of another permanent magnet such as a neodymium magnet or a samarium cobalt magnet.

  In the above embodiment, each of the first and second rotor cores 10 and 20 and the first and second stator cores 40 and 50 is formed of one electromagnetic steel plate, but a plurality of thin electromagnetic steel plates are overlapped. May be formed. Moreover, you may form the 1st and 2nd rotor cores 10 and 20 and the 1st and 2nd stator cores 40 and 50 with a dust core. As a result, the cost of the motor M can be reduced.

  In the above embodiment, in the coil portion 60, the circumference of the annular winding 61 is covered with the coil insulating layer 62 with a resin mold, but it may be implemented with a cylindrical coil bobbin.

  DESCRIPTION OF SYMBOLS 1 ... Rotary shaft, 2 ... Rotor, 2a ... A phase rotor, 2b ... B phase rotor, 3 ... Stator, 3a ... A phase stator, 3b ... B phase stator, 10 ... 1st rotor core, 11 ... 1st rotor core base, 11a ... outer peripheral surface, 11b ... opposing surface, 11c ... anti-opposing surface, 12 ... through hole, 13 ... first rotor side claw-shaped magnetic pole, 13a, 13b ... circumferential end surface, 13c ... radially outer surface, 13d ... radial direction Inner side surface, 13e ... tip surface, 13x ... first rotor side base, 13y ... first rotor side magnetic pole portion, 20 ... second rotor core, 21 ... second rotor core base, 21a ... outer peripheral surface, 21b ... opposite surface, 21c ... Anti-opposing surface, 22 ... through hole, 23 ... second rotor side claw-shaped magnetic pole, 23a, 23b ... circumferential end surface, 23c ... radial outer surface, 23d ... radial inner surface, 23e ... tip surface, 23x ... second Rotor side base, 23y ... second Data side magnetic pole part, 30 ... field magnet, 30a, 30b ... side surface, 32 ... through hole, 40 ... first stator core, 41 ... first stator core base, 41a ... inner peripheral surface, 41b ... opposite surface, 41c ... opposite Directional surface, 42 ... first stator side cylindrical outer wall, 43 ... first stator side claw-shaped magnetic pole, 43a, 43b ... circumferential end surface, 43c ... radial outer side surface, 43d ... radial inner side surface, 43e ... tip surface, 43x ... 1st stator side base, 43y ... 1st stator side magnetic pole part, 50 ... 2nd stator core, 51 ... 2nd stator core base, 51a ... Inner peripheral surface, 51b ... Opposing surface, 51c ... Anti-opposing surface, 52 ... 2nd Stator side cylindrical outer wall, 53 ... second stator side claw-shaped magnetic pole, 53a, 53b ... circumferential end surface, 53c ... radial outer side surface, 53d ... radial inner side surface, 53e ... tip surface, 53x ... second stator side base, 53y ... 2 stator side magnetic pole part, 60 ... coil part, 61 ... annular winding, 61a ... A phase annular winding, 61b ... B phase annular winding, 61x ... first system annular winding (first system winding), 61y 2nd system annular winding (2nd system winding), 62 ... Coil insulation layer, 71 ... A phase drive circuit unit, 72 ... B phase drive circuit unit, 73 ... Control circuit, 81 ... 1st system drive circuit unit , 82 ... Second system drive circuit unit, 83 ... Control circuit, M ... Motor, M1 ... Single motor, Ma ... A phase motor, Mb ... B phase motor, O ... Central axis, G ... DC power supply, va ... A Phase input voltage, vb ... B phase input voltage, vx ... first system input voltage, vy ... second system input voltage, Qa, Qb ... MOS transistors (first and second switching elements), θd1 ... phase difference, L1, L2 ... Characteristic line.

Claims (6)

An A-phase rotor in which an A-phase field magnet is arranged between a pair of A-phase rotor core bases having a plurality of claw-shaped magnetic poles at equal intervals in the circumferential direction, and a pair of claw-shaped magnetic poles at equal intervals in the circumferential direction A two-layer rotor in which a B-phase rotor having a B-phase field magnet disposed between B-phase rotor core bases is laminated;
An A-phase stator in which windings are arranged between a pair of A-phase stator core bases having a plurality of claw-shaped magnetic poles at equal intervals in the circumferential direction, and a pair of B-phase stator cores having a plurality of claw-shaped magnetic poles at equal intervals in the circumferential direction A motor drive control device comprising a two-layer stator in which a B-phase stator having windings arranged between bases is laminated,
DC power supply,
A first switching element for applying the DC power to a winding disposed in the A-phase stator;
A second switching element for applying the DC power to a winding disposed in the B-phase stator;
A control circuit that opens and closes the first switching element and the second switching element to energize the winding of the A-phase stator and the winding of the B-phase stator from one direction by the DC power supply. The motor drive control apparatus characterized by the above-mentioned. In the motor drive control device according to claim 1,
The winding of the A-phase stator and the first switching element are connected in series, and the winding of the B-phase stator and the second switching element are connected in series. A drive control apparatus for a motor, wherein a DC power supply is applied. An A-phase rotor in which an A-phase field magnet is arranged between a pair of A-phase rotor core bases having a plurality of claw-shaped magnetic poles at equal intervals in the circumferential direction, and a pair of claw-shaped magnetic poles at equal intervals in the circumferential direction A two-layer rotor in which a B-phase rotor having a B-phase field magnet disposed between B-phase rotor core bases is laminated;
An A-phase stator in which windings are arranged between a pair of A-phase stator core bases having a plurality of claw-shaped magnetic poles at equal intervals in the circumferential direction, and a pair of B-phase stator cores having a plurality of claw-shaped magnetic poles at equal intervals in the circumferential direction It comprises a two-layer stator in which a B-phase stator having windings arranged between bases is laminated, and the winding arranged in the A-phase stator and the winding arranged in the B-phase stator are each of the first system A drive control device for a motor composed of an annular winding and a second system annular winding,
DC power supply,
A first switching element for applying the DC power to a first system winding of the A-phase stator and a first system winding of the B-phase stator;
A second switching element for applying the DC power to the second system winding of the A-phase stator and the second system winding of the B-phase stator;
Opening and closing the first switching element and the second switching element, the first system winding of the A phase and B phase stator and the second system winding of the A phase and B phase stator, A motor drive control device comprising: a control circuit for energizing from one direction with a DC power supply. In the motor drive control device according to claim 3,
The first system winding and the first switching element are connected in series, the second system winding and the second switching element are connected in series, and the DC power supply is applied to both series circuits. A drive control apparatus for a motor. In the motor drive control device according to claim 3 or 4,
The control circuit controls the opening and closing of the first switching element and the second switching element so that energization with different phases is performed between the first system winding and the second system winding. Motor drive control device. In the motor drive control device according to claim 5,
The motor drive control apparatus according to claim 1, wherein the energizations having different phases have a phase difference of 20 to 60 degrees.