Engine, rotor structure and magnetic machine

FIELD: engines and pumps.

SUBSTANCE: engine includes stator with the first and the second armatures which form rotating magnetic field, inner rotor with the first and the second constant magnets, and outer rotor (13) located between stator and inner rotor. Outer rotor (13) includes rotor housing (31) that supports the first and the second induction magnetic poles (38L, 38R) made from feebly magnetic material so that they are inserted into rotor housing. Phase of the first induction magnetic pole (38L) coincides with phase of the second induction magnetic pole (38R). The first and the second induction magnetic poles are assembled in rotor housing (31) so that they are inserted into linear slots (31a) formed in rotor housing in (L) axis direction. Since the first and the second induction magnetic poles (38L, 38R) are aligned in (L) axis direction, outer rotor (13) has simple design and improved reliability. Besides, support and assembly of the first and the second induction magnetic poles (38L, 38R) in outer rotor (13) is simplified.

EFFECT: simpler structure of rotor supporting the induction magnetic poles, improving reliability of rotating electric machine.

16 cl, 39 dwg

 

The technical field

The present invention relates to a motor containing a ring-shaped stators located around the axis; a first rotor rotating around said axis; and a second rotor positioned between the stator and the first rotor and rotating around said axis.

Also the present invention relates to the structure of the rotor comprising a rotor made of soft-magnetic material and rotating around the axis, and a lot of the induction magnetic poles made of soft-magnetic material and supported on the rotor at certain intervals along the circumference.

In addition, the present invention relates to a magnetic machine containing the first number of magnetic poles, in which multiple magnetic poles arranged along the circumference, the second number of magnetic poles, in which multiple magnetic poles arranged along the circumference, and the number of induction magnetic poles, in which many induction magnetic poles made of soft-magnetic material, are located along the circumference, and the number of induction magnetic poles located between the first row of magnetic poles and the second near the magnetic poles.

Prior art

Known conventional engine, disclosed, for example, in the following patent publication 1 This engine has an internal rotor, the stator and the outer rotor. The inner rotor has a columnar shape in which a multitude of permanent magnets, passing almost in the radial direction, are arranged along the circumference. The stator has a cylindrical shape, in which many anchors are located along the circumference and fixed by pouring the resin. The outer rotor has a cylindrical shape and includes a coil wound on a core, formed by a set of laminated rings, and electric power is not supplied to this coil. The inner rotor, the stator and the outer rotor are arranged sequentially from the inner side, so that they can rotate relative to each other.

In this motor, when the stator is powered to generate a rotating magnetic field, the magnetic pole of the permanent magnet inner rotor is attracted/repelled by the magnetic pole of the stator, so that the inner rotor rotates synchronously with the rotating magnetic field and the outer rotor rotated by electromagnetic induction without synchronization with the rotating magnetic field.

In addition, in patent publication 2 is opened the engine with a dual output, in which an annular stator having multiple anchors and generating a rotating magnetic field attached to the housing, a first rotor, maintaining the second set of permanent magnets on its outer circumference, mounted within the stator for rotation, and a cylindrical second rotor that supports a variety of induction magnetic poles made of soft-magnetic material, installed between the stator and the first rotor for rotation, allowing the output power of the engine can be separately removed from the first rotor and the second rotor.

Patent Publication 1: Japanese laid patent application No. 11-341757;

Patent Publication 2: Japan patent No. 3427511.

However, the engine described in Patent Document 1 has a disadvantage that it cannot achieve high efficiency, since the outer rotor rotated by electromagnetic induction, and the engine operates as a synchronous machine and an induction machine. In addition, since the outer rotor rotated by electromagnetic induction, the induced current generated in the coil of the outer rotor, and eddy currents generated in the core of the outer rotor, causing the dissipation in the external rotor, resulting in the need for cooling of the outer rotor.

For solving the above mentioned problems, the applicant proposed a new engine, disclosed in Japanese patent application No. 2006-217141.

This motor includes an annular stator located around the axis, the wall of the rotor, rotating around the axis, and the outer rotor located between the stator and the inner rotor rotating around an axis. The stator contains the first row of anchors, including many first anchor and generating a first rotating magnetic field that rotates around the circumference, and the second row of anchors, including many second anchors and generating a second rotating magnetic field that rotates around the circumference, and the first row of anchors and the second row of anchors adjacent to each other. The inner rotor contains the first row of permanent magnets, which includes a set of first permanent magnets, and the second row of permanent magnets, which includes many second permanent magnets, and the first row of permanent magnets and the second row of permanent magnets adjacent to each other. The outer rotor contains the first row of the induction magnetic poles, including many of the first induction magnetic poles made of soft-magnetic material, and a second series of induction magnetic poles, including many second induction magnetic poles made of soft-magnetic material, and mentioned induction magnetic poles are arranged in the axial direction, and the above-mentioned first row induction magnetic poles and the second row of inductio the different magnetic poles are adjacent to each other. The first row of anchors and the first row of permanent magnets are opposite on opposite sides in the radial direction of the first row induction magnetic poles, respectively, and the second row of anchors and the second row of permanent magnets are opposite on opposite sides in the radial direction of the second series of induction magnetic poles, respectively.

However, in the motor proposed in Japanese patent application No. 2006-217141, the phase of the first induction magnetic poles and the phase of the second induction magnetic poles, supported by the external rotor is shifted by a half pitch (electrical angle of 90°), which complicates the design to support the first and second induction magnetic poles in the outer rotor, due to which it becomes difficult to ensure the reliability of the outer rotor.

In addition, in the engine with a dual output, described in publication 2, because for fixing the magnetic pole of the rotor is used a means of fastening, such as bolts, the number of parts and Assembly steps is increased accordingly, which leads to a problem of cost increase. In particular, when the induction magnetic pole is made of laminated metal plates, difficulties arise not only when accurate machining of internal re eby, but, while ensuring sufficient strength of attachment of the bolt.

In addition, in the rotary engine described in Japanese patent No. 3427511, if the magnetic poles of the permanent magnets of the inner rotor, an induction magnetic poles of the outer rotor and the magnetic poles of the anchors in the stator are arranged on one line in the radial direction, the magnetic flux from the magnetic poles of the inner rotor passes through the induction magnetic pole of the outer rotor located outside in its radial direction, and further passes in the magnetic pole of the stator located outside in its radial direction. However, if the induction magnetic pole of the outer rotor is displaced in the circumferential direction and is located between two magnetic poles adjacent to each other around the circumference of the inner rotor, the magnetic flux from the magnetic poles of the inner rotor passes through the induction magnetic pole of the outer rotor located outside in its radial direction, and shorts magnetic pole adjacent magnetic pole of the inner rotor in the direction of the circumference. Accordingly, the magnetic efficiency is falling and it is impossible to ensure sufficient performance of the rotary engine.

A brief statement of the substance of the invention

Now izaberete the s was made with respect to the aforementioned disadvantages. The first object of the present invention is to simplify the design of the rotor supporting induction magnetic poles in the motor, and improve reliability.

The second object of the present invention is a reliable fastening of the induction magnetic poles made of soft-magnetic material, the rotor with a simplified design.

The third object of the present invention is to increase productivity by minimizing the short circuit of magnetic flux in the magnetic machine, in which a number of induction magnetic poles located between the first and second series of magnetic poles.

To solve the first task according to the first distinctive feature of the present invention proposed an engine containing a ring-shaped stators located around the axis; the first rotor rotating around an axis; and a second rotor positioned between the stator and the first rotor rotating around an axis;

the stators contain the first row of anchors and the second row of anchors, which are located in the axis direction, and the first row of anchors includes many first anchor having a polarity and arranged in the circumferential direction, and generates the first rotating magnetic field rotating around the circumference by means of a magnetic pole generated in many of the first anchor with the ache of electricity, and the second row of anchors includes many second anchors, which are located around the circumference and generates a second rotating magnetic field rotating around the circumference by means of a magnetic pole generated in many second anchors when power;

and the first rotor includes a first row of permanent magnets and the second row of permanent magnets, which are located in the axis direction, and the first row of permanent magnets includes a set of first permanent magnets arranged so that their magnetic poles had alternately changing the polarity with the specified pitch along the circumference, and the second row of permanent magnets includes many second permanent magnets arranged so that their magnetic poles had alternately changing the polarity with the specified pitch along the circumference;

and the second rotor comprises a first number of induction magnetic poles and the second row induction magnetic poles, which are located in the axis direction, and the first number of the induction magnetic poles includes many of the first induction magnetic poles arranged with a given pitch along the circumference and made of soft-magnetic material, and a second series of induction magnetic poles includes many second induction magnetic floor the owls, arranged with a given pitch along the circumference and made of magnetically soft material;

moreover, the first row of anchors and the first row of permanent magnets are opposite on opposite sides in the radial direction of the first row induction magnetic poles, respectively, and the second row of anchors and the second row of permanent magnets are opposite on opposite sides in the radial direction of the second series of induction magnetic poles, respectively; and

during this phase magnetic poles of the first row of permanent magnets and the phase of the magnetic pole of the second row of permanent magnets of the first rotor are displaced relative to each other by half of a given step along the circumference, the phase polarity of the first rotating magnetic field and the phase polarity of the second rotating magnetic field of the stator are shifted relative to each other by half of a given step along the circumference, and the phase of the first induction magnetic poles and the phase of the second induction magnetic poles of the second rotor coincide with each other.

According to the second distinctive feature of the present invention in addition to the first distinctive feature in the cylindrical body of the second rotor formed a number of gaps, passing linearly in the direction of the axis, and first and second inductee is installed magnetic poles tightly inserted into these slits.

To solve the second task according to the third distinctive feature of the present invention the design of the rotor comprising a rotor made of soft-magnetic material and rotating around the axis, and a lot of the induction magnetic poles made of soft-magnetic material and supported on the rotor at set intervals along the circumference, characterized in that the induction magnetic poles inserted into the rotor.

According to the fourth distinctive feature of the present invention in addition to the third distinctive feature of each induction magnetic poles is open on the outer round surface of the rotor.

According to the fifth distinctive feature of the present invention in addition to the third or fourth distinctive characteristic of the rotor has a cylindrical shape, and a portion of each induction magnetic poles is open on the inner round surface of the rotor.

According to the sixth distinctive feature of the present invention, in addition to any of the distinguishing characteristics from the third to the fifth side, on which the rotor comes in contact with the induction magnetic poles, has a shape which limits the movement of the induction magnetic poles in the radial direction relative to the rotor.

According to sedim the mu distinctive feature of the present invention in addition to the sixth distinctive sign of movement induction magnetic poles in the radial direction relative to the rotor is limited by clutch between the projections provided on the rotor, and recesses provided in each of the induction magnetic pole.

According to the eighth distinctive feature of the present invention, in addition to any of the distinguishing characteristics from the third to the seventh rotor contains a number of slits passing in the direction of the axis; and many induction magnetic poles and pads, made of soft-magnetic material and located between the magnetic poles adjacent to each other in the axis direction, is inserted in said slit.

According to the ninth distinctive feature of the present invention in addition to the eighth distinctive feature is the side on which the rotor comes in contact with the gasket has a shape, which limits the movement of the strip in the radial direction relative to the rotor.

According to the tenth distinctive feature of the present invention in addition to the eighth or ninth distinctive feature of the outer round side of the strip is covered with a ring made of magnetically soft material.

According to the eleventh distinctive feature of the present invention, in addition to any of the distinguishing characteristics from the third to the tenth rotor structure further comprises a holder to limit the movement of the magnetic induction is olasov in the direction of the axis relative to the rotor.

According to the twelfth distinctive feature of the present invention, in addition to any of the distinguishing characteristics from the third to the eleventh rotor further comprises a rotor housing of the flattened cylindrical shape; the cover of the rotor connected to the rotor housing so as to close the opening of the rotor housing; and a rotating shaft provided in the bottom parts of the rotor body and the lid of the rotor.

To achieve the third objective according to the thirteenth distinctive feature of the present invention proposed a magnetic machine, containing the first number of magnetic poles, in which multiple magnetic poles arranged along the circumference, the second number of magnetic poles, in which multiple magnetic poles arranged along the circumference, and the number of induction magnetic poles, in which many induction magnetic poles made of soft-magnetic material, are located along the circumference, and the number of induction magnetic poles located between the first row of magnetic poles and the second near the magnetic poles, characterized in that the angle θ2 formed by the opposite ends in the circumferential direction of the induction magnetic poles number induction of the magnetic poles relative to the axis, is set smaller than at least one of the angle θ1 of the machine, with the existing electric angle 180° of the magnetic poles of the first number of magnetic poles, and angle θ0 of the machine corresponding to an electrical angle of 180° of the magnetic poles of the second number of magnetic poles.

According to the fourteenth distinctive feature of the present invention proposed a magnetic machine, containing the first number of magnetic poles, in which multiple magnetic poles arranged in a linear direction, a second number of magnetic poles, in which multiple magnetic poles arranged in a linear direction, and a number of induction magnetic poles, in which many induction magnetic poles made of soft-magnetic material are arranged in a linear direction, and a number of induction magnetic poles located between the first row of magnetic poles and the second near the magnetic poles, characterized in that the distance L2 between the opposite linear direction ends of the induction magnetic poles of the induction range the magnetic poles is set smaller than at least the distance L1 corresponding to an electrical angle of 180° of the magnetic poles of the first number of magnetic poles, and the distance L0 corresponding to an electrical angle of 180° of the magnetic poles of the second number of magnetic poles.

According to the fifteenth distinctive feature of the present invention in addition to the thirteenth or fourteenth distinctive signs is the one of the first number of magnetic poles and the second number of magnetic poles contains many anchors, and the moving magnetic field is generated through the control of electrical energy for many of anchors, making moves at least one of the first number of magnetic poles and the second number of magnetic poles and the number of induction magnetic poles.

According to the sixteenth distinctive feature of the present invention in addition to the thirteenth or fourteenth distinctive feature one of the first number of magnetic poles and the second number of magnetic poles contains many anchors, and at least one of the first number of magnetic poles and the second number of magnetic poles and the number of induction magnetic poles moves by an external force, thereby generating an electromotive force on the set of anchors.

According to the seventeenth distinctive feature of the present invention in addition to the thirteenth or fourteenth distinctive feature of at least one of the first number of magnetic poles, the second number of magnetic poles and the number of induction magnetic poles is moved by an external force so as to move at least one of the other two rows.

The outer rotor 13 of the described embodiments corresponds to the rotor or the second rotor of the present invention, the inner rotor 14 is described variants implemented is tvline corresponds to the first rotor of the present invention, the first and second stators 12L, 12R of the described embodiments correspond to the stator of the present invention, the first and second anchors 21L, 21R of the described embodiments represent the magnetic pole of the first number of magnetic poles or the anchor of the present invention, the first and second shafts 34, 36 of the outer rotor of the described embodiments correspond to the rotating shaft of the present invention, the first and second induction magnetic poles 38L, 38R-described embodiments correspond to an induction magnetic poles of the present invention, and the first and second permanent magnets 52L, 52R of the described embodiments correspond to the magnetic poles of the second number of magnetic poles of the present invention.

Useful effect of the invention

According to the first distinctive feature of the present invention, the motor includes an annular stator that generates first and second rotating magnetic fields by the first and second anchors located so as to surround the axis; a first rotor comprising a first and second series of magnetic poles including first and second permanent magnets and rotating around an axis; and a second rotor, which is located between the stator and the first rotor and which includes first and second series of induction magnetic poles include the s in yourself first and second induction magnetic poles and rotating around said axis. The first row of anchors and the first row of permanent magnets are opposite on opposite sides in the radial direction of the first row induction magnetic poles, respectively, and the second row of anchors and the second row of permanent magnets are opposite on opposite sides in the radial direction of the second series of induction magnetic poles, respectively. Accordingly, by controlling electric power to the first and second anchors to rotation of the first and second rotating magnetic field line of the magnetic induction is formed so that it passes through the first and second anchors, the first and second permanent magnets and the first and second induction magnetic poles, so that one or both of the first rotor and the second rotor can be brought into rotation.

At this time, the phase of the magnetic pole of the first row of permanent magnets and the phase of the magnetic pole of the second row of permanent magnets are displaced relative to each other by half of a given step along the circumference, and the phase polarity of the first rotating magnetic field and the phase polarity of the second rotating magnetic field of the stator are shifted relative to each other by half of a given step along the circumference. Therefore, the phase of the first induction magnetic poles and the second phase of indukti the frame magnetic poles of the second rotor may coincide with each other. Thus not only simplifying the design of the second rotor and increase its reliability, and eases the maintenance and Assembly of the first and second induction magnetic poles of the second rotor.

According to the second distinctive feature of the present invention, since the first and second induction magnetic poles are inserted into the set of slots provided in the housing of the second rotor and passing in the direction of the aforementioned axis, the Assembly of first and second magnetic poles on the rotor housing is facilitated.

According to the third distinctive feature of the induction magnetic poles are embedded in the rotor to support multiple induction magnetic poles made of soft-magnetic material at set intervals along the circumference of the rotor made of magnetic material and rotating around said axis. Therefore, it is possible to support induction magnetic poles in the rotor without using a dedicated fastening element, such as a bolt, so the number of parts is reduced according to the number of fastening elements.

According to the fourth distinctive feature as part of the induction magnetic pole is open on the outer round surface of the rotor, provided the capacity is ü reduction of the air gap, formed between the rotor and the magnetic pole and the outer rotor.

According to the fifth distinctive feature, since the rotor has a cylindrical shape and a part of the induction magnetic pole is open on the inner round surface of the rotor, it is possible to reduce the air gap formed between the rotor and the magnetic pole and the inside of the rotor.

According to the sixth distinctive feature, as the side on which the rotor and the induction magnetic pole come in contact, has a shape which limits the movement of the induction magnetic poles in the radial direction relative to the rotor, it is possible to prevent disconnection of the induction magnetic poles due to the centrifugal force produced during rotation of the rotor.

According to the seventh distinctive feature, since the protrusions provided on the rotor, and the recess provided in the induction magnetic poles, interlock, limit the movement of the induction magnetic poles in the radial direction relative to the rotor, and through the deepening eliminated the excess part of the induction magnetic poles, so that the eddy-current loss and hysteresis can also be reduced.

According to the eighth distinctive signs is, because many of the slots provided in the rotor and directed parallel to the axis, is inserted into the set of magnetic poles and pads, made of magnetic material and located between adjacent in the axial direction of the induction magnetic poles, facilitates the Assembly of the induction magnetic poles and pads to the rotor, and by strips of magnetic material located between adjacent in the axial direction of the induction magnetic poles, interrupted line of magnetic induction.

According to the ninth distinctive feature, as the side on which the rotor and the spacer are in contact, has a shape which limits the movement of the strip in the radial direction relative to the rotor, it is possible to prevent disconnection of the strip due to the centrifugal force produced during rotation of the rotor.

According to the tenth distinctive feature, because the outer round side of the strip is covered with a ring made of magnetic material, it is possible to more effectively prevent disconnection of the strip due to the centrifugal force produced during rotation of the rotor, and also, it is possible to prevent the bending of the Central part of the rotor in the axial direction due to centrifugal si is s. If we assume that the ring is wound on a soft-magnetic material, then the outer round side of soft-magnetic material is formed an unnecessary gap, however, the formation of this gap can be prevented by winding ring at the outer round side of the strip.

According to the eleventh distinctive feature, because it provides the holder to limit the movement of the induction magnetic poles in the axial direction relative to the rotor, it is possible to prevent disconnection of the induction magnetic poles of the rotor in the axial direction.

According to the twelfth distinctive feature, since the rotor comprises a rotor housing of the flattened cylindrical shape and a cover connected to the housing of the rotor in such a way as to close the opening of the rotor housing, and a rotating shaft provided in the bottom parts of the rotor body and the lid of the rotor, the rotor is supported at its opposite ends to stabilize the rotation.

According to the thirteenth distinctive characteristic in the magnetic machine, in which a number of induction magnetic poles located between the first row of magnetic poles and the second near the magnetic poles, the angle between the opposite circumferential ends of the induction magnetic poles of a number of induction magnetic poles consider is Ino axis is set smaller than, at least, the angle of the machine, corresponding to an electric angle of 180° magnetic poles of the first number of magnetic poles, and the angle of the machine, corresponding to an electric angle of 180° magnetic poles of the second number of magnetic poles. Therefore, the possibility of suppressing the occurrence of the short circuit magnetic path between the magnetic poles adjacent to each other along the circumference, the first number of magnetic poles or the second number of magnetic poles through the induction magnetic-pole row induction magnetic poles, improving magnetic efficiency.

According to the fourteenth distinctive characteristic in the magnetic machine, in which a number of induction magnetic poles located between the first row of magnetic poles and the second near the magnetic poles, the distance between opposite along the line ends of the induction magnetic poles of a number of induction magnetic poles is set smaller than at least a distance corresponding to an electrical angle of 180° of the first number of magnetic poles, and a distance corresponding to an electrical angle of 180° of the second number of magnetic poles. Therefore, the possibility of suppressing the occurrence of magnetic short-circuit between the magnetic poles, which is poison to each other along a line, the first number of magnetic poles or the second number of magnetic poles through the induction magnetic-pole row induction magnetic poles, improving magnetic efficiency.

According to the fifteenth distinctive feature, because one of the first number of magnetic poles and the second number of magnetic poles contains many anchors, and a moving magnetic field is generated by controlling electric power for a variety of anchors, different from the first number of magnetic poles and the second number of magnetic poles or the number of induction magnetic poles moving, functioning as the engine.

According to the sixteenth distinctive feature, one of the first number of magnetic poles and the second number of magnetic poles includes many of the anchors, and the other of the first number of magnetic poles and the second number of magnetic poles or the number of induction magnetic pole moving due to external force. Consequently, it is possible to generate an electromotive force on the set of anchors, so that they function as the engine.

According to the seventeenth distinctive feature of at least one of the first number of magnetic poles, the second number of magnetic poles and the number of induction magnetic pole moving due to external force to move at least one and the other two rows, and thus, the ranks of the act as a means of transmission of the driving force.

Brief description of drawings

The invention is further explained in the description of the preferred variant of the embodiment with reference to the accompanying drawings, in which:

Figure 1 shows a front view of the engine in the direction of the axis according to the first variant of implementation (view on the line 1-1 with 2);

Figure 2 is a view in section along the line 2-2 in figure 1 (the first version of the implementation);

Figure 3 is a view in section along the line 3-3 in figure 1 (the first version of the implementation);

4 is a view in section along the line 4-4 in figure 2 (the first version of the implementation);

5 is a view in section along the line 5-5 in figure 2 (the first version of the implementation);

6 is a view in section along the line 6-6 in figure 3 (the first version of the implementation);

7 is a General view of the spatial separation of the parts of the engine (the first version of the implementation);

Fig - General view of the spatial separation of the parts of the outer rotor (the first version of the implementation);

Figure 9 is a General view of the spatial separation of the parts of the inner rotor (the first version of the implementation);

Figure 10 is an enlarged view of a part 10 with Figure 3 (the first version of the implementation);

11 is a view for explaining a magnetic short-circuit of the permanent magnet inner rotor (the first version of the implementation);

Fig - diagram, where is bigatel arranged along the circumference (the first version of the implementation);

Fig diagrams for explaining the first operation mode, when the inner rotor is fixed (the first version of the implementation);

Fig diagrams for explaining the second operation mode, when the inner rotor is fixed (the first version of the implementation);

Fig diagrams for explaining a third operation mode, when the inner rotor is fixed (the first version of the implementation);

Fig diagrams for explaining the first operation mode, when the outer rotor is fixed (the first version of the implementation);

Fig diagrams for explaining the second operation mode, when the outer rotor is fixed (the first version of the implementation);

Fig (A, B) - form protrusion strip according to the second variant of implementation;

Fig - view, corresponding to 6, according to the third variant of implementation;

Fig is a view in section along the line 20-20 in Fig (third option exercise);

Fig is a view in section along the line 21-21 on Fig (third option exercise);

Fig - types, corresponding to Figure 10, according to the fourth variant of implementation;

Fig is a view corresponding to Figure 10, according to the fifth variant implementation;

Fig is a view corresponding to Figure 3, according to the sixth variant implementation;

Fig enlarged views of main parts on Fig (sixth variant implementation).

Description of the preferred options about what westline

Further description of the present invention with reference to the accompanying drawings.

The first option exercise

The first variant of implementation of the present invention is described with reference to Figure 1-17.

As shown in Fig.7, the motor M this option, the implementation includes a housing 11, forming an octagonal cylindrical shape having a small length in the direction of the axis L, the annular first and second stators 12L, 12R, attached to the inner round surface of the body 11, a cylindrical outer rotor 13 that is located inside the first and second stators 12L, 12R and rotating around the axis L, and a cylindrical inner rotor 14, located inside of the outer rotor 13 and rotating around the axis L. the Outer rotor 13 and the inner rotor 14 can rotate relative to each other and relative to the stationary first and second stators 12L, 12R.

As shown in figures 1 and 2, the housing 11 has an octagonal hollow cylindrical portion 15 of the casing and the portion 15 of the cover in the shape of an octagonal plate, which is attached to the hole portion 15 of the housing through a series of bolts 16. In part 15 of the casing and part 17 of the lid for ventilation is formed with a number of holes 15a, 17a.

As shown in Figure 1-4 and 7, the first and second stators 12L, 12R have the same design and they are superimposed on each other with a slight offset is otnositelno each other along the circumference. The design according to the present invention is described for only one of these stators, that is, for the first stator 12L. The first stator 12L contains a number (in this embodiment, - 24) the first anchor 21L, each of which includes a coil 20 wound on the outer circumference of the core 18 made of laminated steel plates with inserted between the insulators 19. Referred to the first anchor 21L connected to each other through the annular holder 22, and they are connected along the circumference, forming a generally annular shape. The flange 22a, protruding in the radial direction from one end in the direction of the axis L of the holder 22 attached to the stepped portion 15b (see Figure 2) on the inside part 15 of the housing through a series of bolts 23.

The second stator 12R equipped with 24 parts of the second anchor 21R similar to the first stator 12L. The flange 22a of the holder 22 is attached to the stepped portion 15c (see Figure 2) on the inner surface of part 15 of the housing body 11 by means of set screws 24. At this time, the phase along the circumference of the first stator 12L and the second stator 12R offset from each other by a half pitch of the first and second permanent magnets 52L, 52R of the inner rotor 14 (see figure 3 and 4). Three-phase AC power is supplied from pins 25, 26, 27 (see Figure 1), provided in part 15 of the housing 11, the first and second anchors 12L, 12R, thereby generating a rotating magnetic field on the first and second stators 12L, 12R.

As shown in figure 2, 7 and 8, the outer rotor 13 is a hollow element, which includes a housing 31 of a rotor formed of magnetic material of the flattened cylindrical shape, and the cover 33 of the rotor formed of magnetic material in the form of a disc and is attached by bolts 32 so as to close the opening of the housing 31 of the rotor. The first shaft 34 of the outer rotor, extending from the center of the bottom part of the housing 31 of the rotor axis L, is supported rotatably part 15 of the housing 11 through a bearing 35. The second shaft 36 of the outer rotor, extending from the center of the cover 33 of the rotor axis L, is supported rotatably part 17 of the cover 11 via a bearing 37. The first shaft 34 of the outer rotor, which serves as the output shaft of the outer rotor 13, passes through the portion 15 of the housing 11 and exits.

Weakly magnetic material is a material which is attracted by a magnet, and it includes the resin, wood, etc. in addition to the aluminum and the like, and in some cases it is also called the non-magnetic material.

As shown in figure 2, 6, 8 and 10, many (in the present embodiment, - 20) slits 31a parallel to the axis L is formed on the external cylindrical article which side of the body 31 of the rotor, in order to provide communication between the inner part and the outer part in the radial direction. Each slit 31a is opened from the bottom part of the housing 31 of the rotor and closed by the valve housing 31 of the rotor. The first induction magnetic poles 38L, made of soft-magnetic material, the strip 39 and the second induction poles 38R made of soft-magnetic material is inserted in the slit 31a in the direction of the axis L from the bottom part of the housing 31 of the rotor and inserted in them. The first and second induction magnetic poles 38L, 38R are formed of steel plates laminated in the direction of the axis L.

A pair of protrusions 31b, 31b protruding towards each other, formed on the opposite inner sides of each slit 31a in the housing 31 of the rotor. A pair of recesses 38a, 38a, 39a, 39a which engages with a pair of protrusions 31b, 31b formed on the external sides of the first and second induction magnetic poles 38L, 38R and gaskets 39, which are in contact with the slits 31a.

When the first and second induction magnetic poles 38L, 38R and the gasket 39 is inserted into the slit 31a, as described above, the front end of the first induction magnetic poles 38L comes in contact with the stopper 31c (see Fig.6) on the front end of the slit 31a to restrict their movement. In this state, one of the many elastic teeth 41a protruding towards the attachment axis L of the ring-shaped holder 41, fixed on the bottom part of the housing 31 of the rotor by means of bolts 40, is in elastic contact with the rear end of the second induction magnetic poles 38R. In the first and second induction magnetic poles 38L, 38R and the gasket 39, is inserted into the slit 31a, held by the stopper 31c and elastic tooth 41a of the holder 41, thus preventing their exit in the direction of the axis L and, accordingly, prevents the noise.

As shown in figure 2, the first sensor 42 provisions designed to detect the rotation position of the outer rotor 13, placed so as to surround the second shaft 36 of the outer rotor 13. The first sensor 42 provisions contains the rotor 43 of the position sensor attached to the outer round surface of the second shaft 36 of the outer rotor, and the stator 44 of the position sensor attached to the portion 17 of the cover 11 in such a manner as to surround the periphery of the rotor 43 of the position sensor.

As shown in figure 2-5 and 9, the inner rotor 14 includes a housing 45 of the rotor, is formed in the shape of a cylinder, the shaft 47 of the inner rotor, passing through the sleeve 45a of the housing 45 of the rotor and is fixed by a bolt 46, the annular first and second cores 48L, 48R of the rotor that includes a laminated steel plate and attached to the outer round surface of the body 45 of the rotor, and the annular Proclus is the corporate governance 49, mounted on the outer round surface of the body 45 of the rotor 14. One end of the shaft 47 of the inner rotor is supported for rotation on the axis L by means of the ball bearing 50 within the first shaft 34 of the outer rotor. The other end of the shaft 47 of the inner rotor is supported rotatably through a bearing 51 on the inside of the second shaft 36 of the outer rotor and passes through the second shaft 36 of the outer rotor and the portion 16 of the cover 11, and exits from the housing 11 in such a way as to perform the function of an output shaft of the inner rotor 14.

The first and second cores 48L, 48R of the rotor, attached on the outer round surface of the body 45 of the rotor have the same design, and they are equipped with multiple (in this embodiment, - 20) holes 48a to support the permanent magnets along the outer round surface (see figure 3 and 4), in which in the direction of the axis L plated first and second permanent magnets 52L, 52R. The polarity of the adjacent first permanent magnets 52L of the first core 48L rotor alternately changing the polarity of the adjacent second permanent magnets 52R of the second core 48R of the rotor cyclically changed, and the phase in the circumferential direction of the first permanent magnets 52L in the first core 48L of the rotor and the phase in the circumferential direction of the second permanent magnets 52R of the second core 48R rotor offset Rel is relative to each other by half a step (see 3 and 4).

The gasket 49, made of magnetic material is inserted in the Central part in the direction of the axis L in the outer round part of the body 45 of the rotor; a pair of plates 53, 53 for holding the first and second permanent magnets 52L, 52R inserted from the outer side, respectively; first and second cores 48L, 48R of the rotor is inserted from the outer side, respectively; a pair of plates 54, 54, holding the first and second permanent magnets 52L, 52R, inserted from the outer side, respectively; and a pair of retaining rings 55, 55 plated on the outer side, respectively.

As shown in figure 2, the second sensor 56 provisions designed to detect the rotation position of the inner rotor 14, placed so as to surround the shaft 47 of the inner rotor. The second sensor 56 position includes a rotor 57 of the sensor attached to the outer round surface of the shaft 47 of the inner rotor, and the stator 58 of the sensor attached to the portion 17 of the cover 11 in such a manner as to surround the periphery of the rotor 57 position sensor.

Therefore, as shown in Figure 10 in an enlarged scale, of the inner round surface of the first anchor 21L of the first stator 12L is located opposite the outer round surface of the first induction magnetic poles 38L, the open side of the outer round surface of the outer rotor 13, and between the have them form small air gap α, and the outer round surface of the core 48L of the inner rotor 14 is located opposite the inner round surface of the first magnetic poles 38L, open with the inner round surface of the outer rotor 13, and between them is formed a small air gap β. Similarly, the inner round surface of the second anchor 21R of the second stator 12R is located opposite the outer round surface of the second induction magnetic poles 38R, the open side of the outer round surface of the outer rotor 13, and between them is formed a small air gap (α) and the outer round surface of the core 48R of the inner rotor 14 is located opposite the inner round surface of the second magnetic poles 38R, open with the inner round surface of the outer rotor 13, and between them is formed a small air gap β.

What follows is a description of the principle of operation of the motor M of the first variant of implementation, having the above structure.

Fig is a schematic views of a state where the engine is placed along the circumference. On the right and left sides Fig shows the first and second permanent magnets 52L, 52R of the inner rotor 14, respectively. The first and second permanent magnets 52L, 52R are located in the circumferential direction (vertical direction on Fig), and the poles N and S is nedosmotreli alternately with a specified step P. The first permanent magnets 52L and the second permanent magnets 52R are located with a certain offset with respect to each other, and this offset is half of the specified step P, that is P/2.

In the Central part Fig shows a virtual permanent magnets 21, the respective first and second armatures 21L, 21R of the first and second stators 12L, 12R, and these virtual permanent magnets 21 are arranged along the circumference with a given pitch P. In fact, the number of first and second armatures 21L, 21R of the first and second stators 12L, 12R is 24, respectively, and the number of first and second permanent magnets 52L, 52R of the inner rotor 14 is 20, respectively. Thus, the step of first and second armatures 21L, 21R does not coincide with the pitch P of the first and second permanent magnets 52L, 52R of the inner rotor 14.

However, since the first and second anchors 21L, 21R form a rotating magnetic field, respectively, the first and second anchors 21L, 21R can be replaced with 20 units of the virtual permanent magnets 21 arranged through step P and rotating in a circle. The first and second anchors 21L, 21R hereinafter collectively referred to as the first and second virtual magnetic poles 21L, 21R of the virtual permanent magnets 21. The polarity of the first and second virtual magnetic poles 21L, 21R of the virtual permanent magnets 21, adjacent the other is to each other along the circumference, alternately changed, and the first virtual magnetic poles 21L and the second virtual magnetic poles 21R of the virtual permanent magnets 21 are displaced relative to each other along the circumference by half step, that is P/2.

The first and second induction magnetic poles 38L, 38R of the outer rotor 13 are located between the first and second permanent magnets 52L, 52R and the virtual permanent magnets 21. The first and second induction magnetic poles 38L, 38R are arranged with a pitch P in the circumferential direction and are located on the same line with the first induction magnetic poles 38L and the second induction magnetic poles 38R in the direction of the axis L.

As shown in Fig, when the polarity of the first virtual magnetic poles 21L virtual permanent magnet 21 is different from the polarity opposite to the (nearest) of the first permanent magnets 52L, the polarity of the second virtual magnetic poles 21R of the virtual permanent magnet 21 coincides with the polarity opposite to the (nearest) of the second permanent magnets 52R. In addition, when the polarity of the second virtual magnetic poles 21R of the virtual permanent magnet 21 is different from the polarity opposite to the (nearest) of the second permanent magnets 52R, the polarity of the first virtual magnetic poles 21L virtual permanent magnet 21 ppsr what gives with the opposite polarity (nearest) of the first permanent magnets 52L (see Fig(G)).

First, the engine operation will be described for the case when a rotating magnetic field is generated at the first and second stators 12L, 12R (first and second virtual magnetic poles 21L, 21R)to cause the rotation of the outer rotor 13 (first and second induction magnetic poles 38L, 38R) in a state where the inner rotor 14 (first and second permanent magnets 52L, 52R) is stationary and does not rotate. In this case, the virtual permanent magnets 21 are rotated down the figures relative to the stationary first and second permanent magnets 52L, 52R in order Fig(A), 13(B), 13(C)13(D)14(E)14(F) and 14(G), whereby the first and second induction magnetic poles 38L, 38R spin down the figures.

On Fig(A) the first induction magnetic poles 38L are located on the same line relative to the opposite of the first permanent magnets 52L and the first virtual magnetic poles 21L virtual permanent magnets 21 and the second induction magnetic poles 38R shifted by the half pitch P/2 relative to the opposite second virtual magnetic poles 21R and the second permanent magnets 52R. In this state of the virtual permanent magnets 21 are rotated down on Fig(A). At the beginning of the rotation, the polarity of the first virtual magnetic poles 21L virtual permanent magnet 21 is different from the polarity protivopul the local (nearest) of the first permanent magnets 52L, and the polarity of the second virtual magnetic poles 21R of the virtual permanent magnet 21 coincides with the opposite polarity (the coming) of the second permanent magnets 52R.

Since the first induction magnetic poles 38L are located between the first permanent magnets 52L and the first virtual magnetic poles 21L virtual permanent magnets 21, the first induction magnetic poles 38L are magnetized first permanent magnets 52L and the first virtual magnetic poles 21L, resulting between the first permanent magnets 52L, the first induction magnetic poles 38L and the first virtual magnetic poles 21L is generated first magnetic line G1. Similarly, because the second induction magnetic poles 38R are located between the second virtual magnetic poles 21R and the second permanent magnets 52R, the second induction magnetic poles 38R are magnetized by the second virtual magnetic poles 21R and the second permanent magnets 52R, thanks to that between the second virtual magnetic poles 21R, the second induction magnetic poles 38R and the second permanent magnets 52R is generated by the second magnetic line G2.

In the state shown in Fig(A), the first magnetic line G1 is generated in such a way that it connects together the first constant is installed magnets 52L, the first induction magnetic poles 38L and the first virtual magnetic poles 21L, while the second magnetic line G2 is generated in such a way that it connects together every two second virtual magnetic poles 21R, located next to each other in the circumferential direction, and the second induction magnetic poles 38R, located between them, and it connects every two second permanent magnets 52R, located next to each other in the circumferential direction, and the second induction magnetic poles 38R, located between them. As a result, in this state is magnetic path, as shown in Fig(A). In this state, the magnetic force for circumferential rotation has no effect on the first induction magnetic poles 38L, since the first magnetic line G1 has the form of a straight line. In addition, the degree of bending and the total magnetic flux of the second magnetic lines G2 are equal to each other in all cases, except the magnetic lines G2 between each two second virtual magnetic poles 21R, located next to each other in the circumferential direction, and the second induction magnetic poles 38R, and the degree of bending and the total magnetic flux of the second magnetic lines G2 are also equal to each other in all cases, except the magnetic lines between every two second permanent magnets 52R, located next to each the other in the circumferential direction, and second induction magnetic poles 38R, resulting in a balance. Accordingly, a magnetic force for circumferential rotation also does not act on the second induction magnetic poles 38R.

When the virtual permanent magnets 21 are rotated and moved from the positions shown in Fig(A), in the positions shown in Fig(B), is generated by the second magnetic line G2 connecting the second virtual magnetic poles 21R, the second induction magnetic poles 38R and the second permanent magnets 52R, and the first magnetic line G1 between the first induction magnetic poles 38L and the first virtual magnetic poles 21L curves. The result of this operation, the first and second magnetic lines G1 and G2 install the magnetic circuit, as shown in Fig(B).

In this state, although the first magnetic line G1 is bent to a small extent, the magnitude of the total magnetic flux is of great importance, and, accordingly, a relatively large magnetic force acts on the first induction magnetic poles 38L. Thus, the first induction magnetic poles 38L are driven by a relatively large driving force in the direction of rotation of the virtual permanent magnets 21, i.e. in the direction of rotation of the magnetic field. In the outer rotor 13 is driven in the upravlenii rotation of the magnetic field. In addition, although the second magnetic line G2 is bent to a large extent, the magnitude of the total magnetic flux has a small value, and thus, a relatively small magnetic force acts on the second induction magnetic poles 38R, resulting in the second induction magnetic poles 38R are rotated through a relatively small driving force in the direction of rotation of the magnetic field. In the outer rotor 13 is driven in the direction of rotation of the magnetic field.

Further, when the virtual permanent magnets 21 are rotated and successively move from the positions shown in Fig(B), in the positions shown in Fig(C), 13(D)14(E) and 14(F), the first induction magnetic poles 38L and second induction magnetic poles 38R are driven in the direction of rotation of the magnetic field by the magnetic force caused by the first and second magnetic lines G1, G2, respectively. In the outer rotor 13 is driven in the direction of rotation of the magnetic field. During this process, although the degree of bend of the first magnetic line G1 is becoming more common magnetic flux becomes smaller, and accordingly, the magnetic force acting on the first induction magnetic poles 38L gradually weakened, resulting in a driving force that causes the movement of the first induction magnetic poles 38L in the direction of rotation of the magnetic field, gradually decreases. In addition, although the degree of bend of the second magnetic line G2 is becoming less common magnetic flux becomes larger, and accordingly, the magnetic force acting on the second induction magnetic poles 38R, gradually increases, resulting in a driving force for driving the second induction magnetic poles 38R in the direction of rotation of the magnetic field is gradually increased.

As the rotation of the virtual permanent magnets 21 of the provisions shown in Fig(E), in the positions shown in Fig(F), the second magnetic line G2 is bent and the total magnetic flux reaches a value close to the highest. In the greatest magnetic force acts on the second induction magnetic poles 38R, and the driving force acting on the second induction magnetic poles 38R, takes the largest value. Next, as shown Fig(G), the virtual permanent magnet 21 rotates in increments of P from the initial position shown in Fig(A), and the first and second virtual magnetic poles 21L, 21R of the virtual permanent magnet 21 to rotate and move in the position opposite to the first and second permanent magnets 52L, 52R, respectively, resulting in a set condition, where the right side and left side on Fig(A) change places. Only in this IOM is NT magnetic force does not act to rotate the outer rotor 13 on the circumference.

In this state, when the virtual permanent magnet 21 rotates further, the first and second induction magnetic poles 38L, 38R are driven in the direction of rotation of the magnetic field by the magnetic force caused by the first and second magnetic lines G1, G2, causing the outer rotor 13 is driven in the direction of rotation of the magnetic field. At this time, when the virtual permanent magnet 21 rotates further, and again returns to the position shown in Fig(A), the magnetic force acting on the first induction magnetic poles 38L, becomes larger, in contrast to the above case, since the total magnetic flux is increased, although the degree of bend of the first magnetic line G1 is reduced, so that the driving force acting on the first induction magnetic poles 38L, becomes larger. On the other hand, the magnetic force acting on the second induction magnetic poles 38R, decreases as the magnitude of the total magnetic flux is reduced, although the degree of bend of the second magnetic line G2 is increased so that the driving force acting on the second induction magnetic poles 38R, becomes smaller.

Comparing Fig(A) and Fig(G), you may notice that along with rotation of the virtual permanent magnet 21 with a pitch P, the first and second induction m is gnite poles 38L, 38R rotate only a half step, that is, P/2. Therefore, the outer rotor 13 rotates at a speed equal to 1/2 the speed of rotation of the rotating magnetic fields of the first and second stators 12L, 12R. This is because the first and second induction magnetic poles 38L, 38R are rotated under the action of magnetic force caused by the first and second magnetic lines G1, G2, and meanwhile they remain between the first permanent magnets 52L and the first virtual magnetic poles 21L connected to the first magnetic line G1, and between the second permanent magnets 52R and the second virtual magnetic poles 21R is connected to the second magnetic line G2.

Below with reference to Fig and 16 described operation of the motor M, when the inner rotor 14 rotates, and the outer rotor 13 is fixed.

First, as shown in Fig(A), in a state where each of the first induction magnetic poles 38L is located opposite each of the first permanent magnets 52L and each of the second induction magnetic poles 38R is located between each two adjacent second permanent magnets 52R, the first and second rotating magnetic fields rotate down Fig(A). At the beginning of the rotation, the polarity of each of the first virtual magnetic poles 21L is set different from the polarity of each of the opposite lane is s permanent magnets 52L, and the polarity of each of the second virtual magnetic poles 21R is set the same as the polarity of each of the opposite second permanent magnets 52R.

In this state, when the virtual permanent magnets 21 to rotate and move in the positions shown in Fig(B), the first magnetic line G1 between the first induction magnetic poles 38L and the first virtual magnetic poles 21L is bent, and the second virtual magnetic poles 21R closer to the second induction magnetic poles 38R. Consequently, generates a second magnetic line G2, connecting together the second virtual magnetic poles 21R, the second induction magnetic poles 38R and the second permanent magnets 52R. In the magnetic circuit shown in Fig(B), the set of the first and second permanent magnets 52L, 52R, the virtual permanent magnets 21 and the first and second induction magnetic poles 38L, 38R.

In this state, although the magnitude of the total magnetic flux of the first magnetic lines G1 between the first permanent magnets 52L and the first induction magnetic poles 38L is of great importance, the first magnetic line G1 has the form of a straight line, and accordingly, a magnetic force for rotation of the first permanent magnets 52L relative to the first induction magnetic poles 38L is not generated. In addition,since the distance between the second permanent magnets 52R and the second virtual magnetic poles 21R, having the other polarity, a relatively large, although the magnitude of the total magnetic flux of the second magnetic lines G2 between the second induction magnetic poles 38R and the second permanent magnets 52R has a relatively small value, the amount of bending is of great importance, and, accordingly, the magnetic force that brings the second permanent magnets 52R to the second induction magnetic poles 38R, acts on the second permanent magnets 52R. Therefore, the second permanent magnets 52R are driven together with the first permanent magnets 52L in the direction of rotation of the virtual permanent magnets 21, i.e. in the direction (upper side in Fig(A)-16(D)), the opposite direction of rotation of the magnetic field, and rotates in the direction of the positions shown in Fig(C). With this rotation of the inner rotor 14 rotates in the direction opposite to the direction of rotation of the magnetic field.

Although the first and second permanent magnets 52L, 52R are rotated from the positions shown in Fig(B), in the direction of the positions shown in Fig(C), the virtual permanent magnets 21 are rotated in the direction of the positions shown in Fig(D). As described above, when the second permanent magnets 52R closer to the second induction magnetic poles 38R, the degree of bend of the second magnetic lines G2 between the second induction magnetic fields 38R and the second permanent magnets 52R becomes less but the magnitude of the total magnetic flux of the second magnetic line G2 becomes larger when the virtual permanent magnets 21 more close to the second induction magnetic poles 38R. As a result, as in the above case, the magnetic force that brings the second permanent magnets 52R to the second induction magnetic poles 38R, acts on the second permanent magnets 52R, resulting in the second permanent magnets 52R are driven together with the first permanent magnets 52L in the direction opposite to the direction of rotation of the magnetic field.

In addition, when the first permanent magnets 52L rotate in the direction opposite to the direction of rotation of the magnetic field, the first magnetic line G1 between the first permanent magnets 52L and the first induction magnetic poles 38L is bent, and therefore, the magnetic force that brings the first permanent magnets 52L to the first induction magnetic poles 38L, acting on the first permanent magnets 52L. However, in this state, the magnetic force caused by the first magnetic line G1, weaker than the magnetic force caused by the second magnetic line G2, since the degree of bend of the first magnetic line G1 is less than the degree of bend of the second magnetic line G2. In the second permanent magnets 52R are driven together with the lane is suspended permanent magnets 52L in the direction opposite to the direction of rotation of the magnetic field by a magnetic force corresponding to the difference between these two magnetic forces.

As shown in Fig(D), when the distance between the first permanent magnets 52L and the first induction magnetic poles 38L becomes essentially equal to the distance between the second induction magnetic poles 38R and the second permanent magnets 52R, the total magnetic flux and the degree of bend of the first magnetic lines G1 between the first permanent magnets 52L and the first induction magnetic poles 38L become essentially equal to the magnitude of the total magnetic flux and the amount of bend of the second magnetic lines G2 between the second induction magnetic poles 38R and the second permanent magnets 52R, respectively.

In the result of the magnetic forces caused by the first and second magnetic lines G1, G2, essentially, become equal to each other, and, respectively, the first and second permanent magnets 52L, 52R temporarily not move.

In this state, when the virtual permanent magnets 21 to rotate and move in the positions shown in Fig(E), the state of generation of the first magnetic line G1 is changed and set to the magnetic circuit shown in Fig(F). Therefore, the magnetic force caused by the first magnetic L. what of G1, practical does not act to bring the first permanent magnets 52L to the first induction magnetic poles 38L, and, consequently, by a magnetic force caused by the second magnetic line G2, the second permanent magnets 52R are driven together with the first permanent magnets 52L in the position shown in Fig(G), in the direction opposite to the direction of rotation of the magnetic field.

When the virtual permanent magnets 21 is slightly rotated from the position shown Fig(G), the magnetic force caused by the first magnetic line G1 between the first permanent magnets 52L and the first induction magnetic poles 38L, acting on the first permanent magnets 52L, to bring them to the first induction magnetic poles 38L, whereby the first permanent magnets 52L are driven together with the second permanent magnets 52R in the direction opposite to the direction of rotation of the magnetic field, and therefore, the inner rotor 14 rotates in the direction opposite to the direction of rotation of the magnetic field. When the virtual permanent magnets 21 are rotated further, the first permanent magnets 52L are driven together with the second permanent magnets 52R in the direction opposite to the direction of rotation of the magnetic field by the magnetic force, with testwuide difference between the magnetic force caused by the first magnetic line G1 between the first permanent magnets 52L and the first induction magnetic poles 38L, and the magnetic force caused by the second magnetic line G2 between the second permanent magnets 52R and the second induction magnetic poles 38R. Further, when the magnetic force caused by the second magnetic line G2, practical does not act to bring the second permanent magnets 52R to the second induction magnetic poles 38R, the first permanent magnets 52L are driven together with the second permanent magnets 52R by a magnetic force caused by the first magnetic line G1.

As described above, together with the rotation of the first and second magnetic fields, magnetic force caused by the first magnetic line G1 between the first permanent magnets 52L and the first induction magnetic poles 38L, magnetic force caused by the magnetic line G2 between the second permanent magnets 52R and the second induction magnetic poles 38R, and a magnetic force corresponding to the difference between the above-mentioned magnetic forces alternately act on the first and second permanent magnets 52L, 52R, that is, the inner rotor 14, resulting in the inner rotor 14 is driven in the direction opposite to the direction of rotation of the magnetic field. Furthermore, the magnetic force, the EU is ü drivers acting on the inner rotor 14, thereby providing a constant value of torque of the inner rotor.

In this case, the inner rotor 14 rotates at a speed equal to the speed of the first and second rotating magnetic fields. This is because the first and second permanent magnets 52L, 52R are rotated, while the first and second induction magnetic poles 38L, 38R remain between the first permanent magnets 52L and the first virtual magnetic poles 21L and between the second permanent magnets 52R and the second virtual magnetic poles 21R, respectively, by the action of the magnetic forces caused by the first and second magnetic lines G1, G2.

Above were separately described cases, when the inner rotor 14 is stationary and the outer rotor 13 rotates in the direction of rotation of the magnetic field, and when the outer rotor 13 is stationary and the inner rotor 14 rotates in the direction opposite to the direction of rotation of the magnetic field, however, it is obvious that the inner rotor 14 and the outer rotor 13 can rotate in mutually opposite directions.

As described above, when one of the inner rotor 14 and the outer rotor 13 or both the rotor rotate, they can rotate without slip, to improve efficiency, meanwhile, functioning as a synchronous machine, because the state is agnicayana first and second induction magnetic poles 38L, 38R vary according to the relative positions of rotation of the inner rotor 14 and the outer rotor 13. In addition, since the number of the first virtual magnetic poles 21L, the first permanent magnets 52L and the first induction magnetic poles 38L are set equal to each other, and the quantity of the second virtual magnetic poles 21R, the second permanent magnets 52R and second induction poles 38R are set equal to each other, it is possible to obtain a sufficient torque of the motor M, regardless of whether rotates the inner rotor 14 or the outer rotor 13.

So according to the motor M of the present variant implementation, since the outer rotor 13 is supported at its opposite ends by the housing 11 through the first shaft 34 of the outer rotor provided in the housing 31 of the rotor, and the second shaft 36 of the outer rotor provided in the cover 33 of the rotor enables a stable rotation of the outer rotor 13.

In addition, since the outer rotor 13 is supported rotatably by the casing 11 through a pair of ball bearings 35, 37, and the inner rotor 13 is supported rotatably by the outer rotor 14 through a pair of ball bearings 50, 51 arranged between the above pair of ball bearings 35, 37, the size of the motor M in the direction of the axis L can be reduced by CPA is to the case, when the outer rotor 13 and the inner rotor 11 is supported for rotation directly by the housing 11, respectively.

This is because the ball bearings 50, 51 may not be placed between a pair of ball bearings 35, 37 of the outer rotor 13, when the inner rotor 14 is directly supported by the casing 11 through a pair of ball bearings 50, 51, and they must be placed in a position outside relative to the pair of ball bearings 35, 37 of the outer rotor 13 in the direction of the axis L.

In addition, since the first sensor 42 provisions for detecting the rotation position of the outer rotor 13, and the second sensor 56 provisions for detecting the rotation position of the inner rotor 14, compactly arranged together at one end in the direction of the axis L, that is, on the part 17 of the cover 11, it is possible to simultaneously perform operations such as inspection, repair, Assembly and replacement of the first and second sensors 42, 56 position only by removing part 17 of the cover, which greatly increases the convenience. Moreover, easier maintenance wiring of the first and second sensors 42, 56 provisions.

In the outer rotor 13, as all external and internal cylindrical surfaces of the first and second induction magnetic poles 38L, 38R are open on the outer round surface and the inner circle of the second surface of the housing 31 of the rotor, accordingly, the air gap α of the inner rotor 13 relative to the first and second stators 12L, 12R and the air gap β of the inner rotor 14 relative to the first and second cores 48L, 48R can be minimized, which improves the magnetic efficiency.

Moreover, since the first induction magnetic poles 38L and second induction magnetic poles 38R are with the same phase in the circumferential direction, the structure of the housing 31 of the rotor of the outer rotor that supports the first and second induction magnetic poles 38L, 38R, is simplified in comparison with the arrangement of the first and second induction magnetic poles 38L, 38R with different phases in the circumferential direction, and also increases the reliability of the body 31 of the rotor.

In particular, since the support for the first and second induction magnetic poles 38L, 38R and gaskets 39 relative to the housing 31 of the rotor is ensured by the coupling recesses of the first and second induction magnetic poles 38L, 38R and recesses 38a, 38a, 39a, 39b strip 39 when you insert them in the direction of the axis L with respect to the protrusions 31b, 31b of the slit 31a of the housing 31 of the rotor, the Assembly process is simplified, and also eliminates the need for dedicated tools, fasteners, such as bolts, which reduces the number of parts and simplification of the structure. Moreover, it is possible effectively to prevent the Oia detach the first and second induction magnetic poles 38L, 38R and strip 39 in the radial direction due to centrifugal force generated during rotation of the outer rotor 13.

Moreover, the recess 38a formed in the first and second induction magnetic poles 38L, 38R, and the unnecessary portions of the first and second induction magnetic poles 38L, 38R are removed, which reduces the eddy-current loss and hysteresis.

As shown in figure 11, when the magnetic flux passes from the first anchor 21L of the first stator 12L to the permanent magnet 52L of the inner rotor 14 through the first induction magnetic poles 38L of the outer rotor 13, if the first induction magnetic poles 38L is in the position indicated by the dotted line, the magnetic flux is closed-circuited from the first permanent magnets 52L through the first induction magnetic poles 38L to the adjacent first permanent magnet 52L, which reduces the magnetic efficiency. This problem also occurs on the second anchor 21R, the second permanent magnets 52R and second induction magnetic poles 38R.

To solve this problem, in the present embodiment, as shown in Figure 10, the angle θ2 formed by two straight lines drawn from the axis L to the opposite ends along the circumference of the first and second induction magnetic poles 38L, 38R, is set smaller than a mechanical angle θ0 corresponding electric is Glu 180° of the first and second permanent magnets 52L, 52R. θ1 represents an angle formed by two straight lines drawn from the axis L to the opposite, along the circumference, the ends of the first and second permanent magnets 52L, 52R, and between the three corners works on the following link θ0 > θ1≥θ2. Thus, there is a possibility to minimize magnetic short circuit between the two first permanent magnets 52L, 52L, located next to each other in the circumferential direction, or a magnetic short circuit between the two second permanent magnets 52R, 52R, located next to each other along the circumference.

The second option exercise

Below with reference to Fig described second variant implementation of the present invention.

In the first embodiment, the shape of the recesses 38a, 39a of the first and second induction magnetic poles 38L, 38R and the strip 39, as well as the shape of the protrusions 31b slits 31a in the body of the rotor are square, but the same effect can be achieved by means of a triangular shape, as shown in Fig(A), or U-shaped, as shown in Fig(B).

Additionally, the first and second induction magnetic poles 38L, 38R can be supported reliably by reversing the positional relation of the grooves 38a, 39a and protrusions 31b forming the protrusions on the side of the first and second induction magnetic poles 38L, 38R and the gasket 9, and forming grooves on the side of the slits 31a. However, if the recess 38a formed on the side of the first and second induction magnetic poles 38L, 38R, as in the described embodiments, implementation, eddy-current loss and the hysteresis can be reduced compared with the case where the recess is formed on the side of the slits 31a.

A third option exercise

Below with reference to Fig-21 described third alternative implementation of the present invention.

In the third embodiment, on the surface of the pads 39 of the outer rotor 13 are formed grooves 39b along the circumference in the outer round surface of the housing 31 of the rotor of the outer rotor 13 are formed grooves 31d, leading to the grooves 39b of the strips 39 and grooves 39b, 31d inserted ring 59, made of magnetic material.

When the outer rotor 13 rotates, centrifugal force acts on the first and second induction magnetic poles 38L, 38R and the gasket 39, and the middle part of the housing 31 of the rotor in the direction of the axis L is convex deformed. However, the middle part of the housing 31 of the rotor in the direction of the axis L is pressed by a ring 59, the resulting deformation is prevented.

The fourth option exercise

Below with reference to Fig described fourth variant of implementation of the present invention.

In the fourth embodiment, per the first permanent magnet 52L or the second permanent magnet 52R, forming one magnetic pole of the inner rotor 14, is divided into two parts. In this case, the two permanent magnet formed by one magnetic pole, it is necessary that the polarity of these two permanent magnets match.

In this case, the angle θ0 corresponding to an electrical angle of 180° magnetic poles in the inner rotor 14, is defined as the angle formed by two radial lines passing between adjacent pairs when two permanent magnets 52L, 52L (or 52R, 52R), forming one magnetic pole, forming a pair.

The fifth option exercise

Below with reference to Fig described fifth implementation of the present invention.

In the above embodiments, the implementation from the first to the fourth present invention is applied to the motor M rotating type, but in the fifth embodiment, the present invention is applied to the motor M linear motion (linear motor).

In this case, as shown in Fig, the linear range of the induction magnetic poles formed by the first and second induction magnetic poles 38L, 38R, is located between the first linear near the magnetic poles, containing the first and second anchors 21L, 21R, and a linear second near the magnetic poles, containing the first and second permanent magnets 52L, 52R. Thus, if the system is Kai energy is applied to the first and second armatures 21L, 21R, to generate a moving magnetic field in the first number of magnetic poles, one or both of the second number of magnetic poles and the number of induction magnetic poles can move in a linear direction.

Next, as shown Fig, the distance L2 between the opposing ends in a linear direction between the first and second induction magnetic poles 38L, 38R series induction magnetic poles is set to a value that is less than the distance L0, corresponding to an electric angle of 180° of the first and second permanent magnets 52L, 52R of the second number of magnetic poles, whereby the opportunity to suppress the magnetic short circuit between the first permanent magnets 52L (or second permanent magnets 52R), located next to each other in a linear direction through the first induction magnetic poles 38L (or the second induction magnetic poles 38R) number of induction magnetic poles, resulting in increased magnetic efficiency.

The sixth option exercise

Below with reference to Fig and 25 described sixth variant of implementation of the present invention.

In the sixth embodiment, the present invention is applied to the electromagnetic clutch in which the first and second stators 12L, 12R provided with first and second constant is diversified magnets 60L, 60R instead of the first and second armatures 21L, 21R. When one of the inner rotor 14 and the outer rotor 13 is driven, if the first and second stators 12L, 12R fixed, the other rotor rotates accordingly, thereby forming mechanism of the power transmission. If the inner rotor 14 is stationary, the driving force can be transmitted between the first and second stators 12L, 12R and the outer rotor 13; if the fixed outer rotor 13, the driving force can be transmitted between the first and second stators 12L, 12R and the inner rotor; and if all three components are rotated, they can function as a differential device.

In addition, in the present embodiment, as shown in Fig(A), the angle θ0 corresponding to an electrical angle of 180° of the first and second permanent magnets 52L, 52R of the inner rotor 14, is set so that the relative angle θ2 formed by two straight lines drawn from the axis L to the opposite ends of the first and second induction magnetic poles 38L, 38R along the circumference, and the angle θ1 formed by two straight lines drawn from the axis L to the opposite ends of the first and second permanent magnets 52L, 52R along the circumference, a relationship is established θ0<θ1≤θ2.

Similarly, as shown in Fig(B), the angle θ0 corresponding to an electrical angle of 180° of the first and second the permanent magnets 60L, 60R of the first and second stators 12L, 12R, is set so that the relative angle θ2 formed by two straight lines drawn from the axis L to the opposite ends of the first and second induction magnetic poles 38L, 38R along the circumference, and the angle θ1 formed by two straight lines drawn from the axis L to the opposite ends of the first and second permanent magnets 60L, 60R along the circumference, a relationship is established θ0 < θ1≤θ2.

The above-described embodiments of the present invention, however, within the essence of the present invention can be made various changes.

For example, in the above embodiments, the implementation illustrated, the motor M and the electromagnetic clutch, but the present invention is applicable to the engine, which generates an electromotive force in the stator by fixing one of the inner rotor and the outer rotor, and the rotation of the other.

In addition, in the described embodiments implement anchor 21L, 21R are provided in the stators 12L, 12R, located outside in the radial direction, and permanent magnets 52L, 52R are provided in the inner rotor 14, located inside in the radial direction, however, their arrangement may be reversed, so that the stator armatures 21L, 21R can be located inside in the radial direction, and the outer Roto is with permanent magnets 52L, 52R can be located outside in the radial direction.

In the described embodiments implement the stators 12L, 12R, the outer rotor 13 and the inner rotor 14 is located in the radial direction (radial arrangement), but they can be located in the direction of the axis L. That is, the stators with anchors and rotors with permanent magnets can be located on opposite sides in the direction of the axis L of the rotor of the induction magnetic poles (axial configuration).

Additionally, in the described embodiments implement the stators 12L, 12R wound focussed manner, however, the winding can also be of the distributed type.

Additionally polar logarithms of the first and second stators 12L, 12R, the outer rotor 13 and the inner rotor 14 is not limited to the described variants of implementation, and they can be changed accordingly.

Explanation of reference signs and symbols

12L first stator (stator)

12R of the second stator (stator)

13 external rotor (rotor, the second rotor)

14 inner rotor (first rotor)

21L first anchor (magnetic pole of the first number of magnetic poles, anchor)

21R second anchor (magnetic pole of the second number of magnetic poles, anchor)

31 the case of the rotor

31a slit

31b ledge

33 cap rotor

34 the first shaft of the outer rotor (rotating shaft)

36 vtoro the shaft of the outer rotor (rotating shaft)

38L first induction magnetic pole (magnetic induction pole)

38R second induction magnetic pole (magnetic induction pole)

38a deepening

39 gasket

41 holder

52L of the first permanent magnet (magnetic pole of the second number of magnetic poles)

52R of the second permanent magnet (magnetic pole of the second number of magnetic poles)

59 ring

L axis

L0 the distance

L2 distance

θ0 the angle of the machine

θ2 angle

P specified step

1. Engine, comprising:
the annular stators (12L, 12R), located so as to surround the axis (L); the first rotor (14), rotating around the axis (L); and the second rotor (13)located between the stator (12) and the first rotor (14) and rotating around the axis (L),
while the stators (12L, 12R) contain the first row of anchors and the second row of anchors, which are located in the direction of the axis (L), and the first row of anchors includes a set of first anchors (21L), which are located along the circumference and which generate the first rotating magnetic field rotating in the circumferential direction by magnetic poles generated on the set the first anchor when the supply of electricity, and the second row of anchors includes many second anchors (21R), which are located along the circumference and generating a second rotating magnetic field rotating in the district is upravlenii through the magnetic poles, generated on the set of the second anchor (21R) when the supply of electricity;
the first rotor (14) contains the first row of permanent magnets and the second row of permanent magnets, which are arranged in the direction of the axis (L), and the first row of permanent magnets includes a set of first permanent magnets (52L), arranged so that their magnetic poles had alternately changing the polarity with the specified step (B) along the circumference, and the second row of permanent magnets includes many second permanent magnets (52R), arranged so that their magnetic poles had alternately changing the polarity with the specified step (B) along the circumference;
the second rotor (13) contains the first row of the induction magnetic poles and the second row induction magnetic poles, which are located in the direction of the axis (L), and the first number of the induction magnetic poles includes many of the first induction magnetic poles 38L), arranged with a given pitch (P) along the circumference and made of soft-magnetic material, and a second series of induction magnetic poles includes many second induction magnetic poles 38R), arranged with a given pitch (P) along the circumference and made of magnetically soft material;
the first series of anchors and the first row of permanent mA is nicov are opposite to each other on opposite sides in the radial direction of the first row induction magnetic poles, respectively, and the second row of anchors and the second row of permanent magnets are opposite to each other on opposite sides in the radial direction of the second series of induction magnetic poles, respectively; and
during this phase magnetic poles of the first row of permanent magnets and the phase of the magnetic pole of the second row of permanent magnets of the first rotor (14) is displaced in relation to each other by half the specified step (B) along the circumference, the phase polarity of the first rotating magnetic field and the phase polarity of the second rotating magnetic field of the stator (12) is displaced in relation to each other by half the specified step (B) in the circumferential direction, and the phase of the first induction magnetic poles (38L) and the phase of the second induction magnetic poles (38R) of the second rotor (13) coincide with each other.

2. The engine according to claim 1, in which a cylindrical rotor housing (31) of the second rotor (13) has formed a number of gaps (31A), passing linearly in the direction of the axis (L), and the first and second induction magnetic poles 38L, 38R) inserted (tightly) in these slots (31A).

3. Rotating electrical machine containing the outer rotor (13), made of soft-magnetic material and rotating around the axis (L)and outer rotor (13) is located between the stator (12L, 12R), located outside in its radial direction, and within the indoor rotor (14), located inside in its radial direction, and
many induction magnetic poles 38L, 38R)made of magnetic material and placed on the external rotor (13) with predetermined intervals along the circumference,
characterized in that the induction magnetic poles 38L, 38R) embedded in the outer rotor (13) and
limiting structure, which limits the movement of the induction magnetic poles 38L, 38R) in the radial direction relative to the rotor (13), is provided between the outer rotor (13) and induction magnetic poles 38L, 38R).

4. Rotating electric machine according to claim 3, in which a portion of each induction magnetic poles (38L, 38R) is open on the outer round surface of the outer rotor (13).

5. Rotating electric machine according to claim 3, in which the outer rotor (13) has a cylindrical shape and a portion of each induction magnetic poles (38L, 38R) is open on the inner round surface of the outer rotor (13).

6. Rotating electric machine according to claim 5, in which the limiting structure limits the movement of the induction magnetic poles 38L, 38R) in the radial direction relative to the outer rotor (13) by means of coupling between the projections provided on the rotor (13), and grooves (38A)provided on each of the induction magnetic pole (38L, 38R).

7. Of rotations is connected with the electric machine according to any one of p, 4, 6 in which the rotor (13) contains a number of gaps (31A), passing in the direction of the axis (L), the set of induction magnetic poles 38L, 38R) and shims (39)made of magnetic material located between the induction magnetic poles 38L, 38R), located next to each other in the direction of the axis (L), inserted in said slit (31A).

8. Rotating electric machine according to claim 7, in which the rotor (13) is in contact with the gasket (39), has the form, which restricts the movement of the seal (39) in the radial direction relative to the rotor (13).

9. Rotating electric machine according to claim 7, in which the outer round surface of the strip (39) is covered by the ring (59)made of magnetic material.

10. Rotating electric machine according to any one of p, 4, 6, 8, 9, which further comprises a holder (41) to limit the movement of the induction magnetic poles 38L, 38R) in the direction of the axis (L) relative to the external rotor (13).

11. Rotating electric machine according to any one of p, 4, 6, 8, 9 in which the outer rotor (13) further comprises a housing (31) of the rotor of the flattened cylindrical shape; a cover (33) of the rotor connected to the casing (31) of the rotor in such a way as to cover the opening of the rotor housing; a rotating shaft (34, 36)provided in the bottom parts of the housing (31) of the rotor and the cover (33) is otara.

12. Magnetic machine, containing the first number of magnetic poles, in which multiple magnetic poles (21L, 21R) is located along the circumference, the second number of magnetic poles, in which multiple magnetic poles (52L, 52R) is located along the circumference, and the number of induction magnetic poles, in which many induction magnetic poles 38L, 38R), made of soft-magnetic material is located along the circumference, and the number of induction magnetic poles located between the first near magnetic poles and the second near the magnetic poles,
characterized in that the angle (θ2)formed by the opposite ends in the circumferential direction of the induction magnetic poles 38L, 38R) number of induction of the magnetic poles relative to the axis (L), is set smaller than at least one of the angle (θ1) of the machine corresponding to an electric angle of 180° magnetic poles (21L, 21R) of the first number of magnetic poles, and the angle (θ0) of the machine corresponding to an electric angle of 180° magnetic poles (52L, 52R) of the second number of magnetic poles.

13. Magnetic machine, containing the first number of magnetic poles, in which multiple magnetic poles (21L, 21R) is located in a linear direction, a second number of magnetic poles, in which multiple magnetic poles (52L, 52R) is located in a linear direction, and a number of induction magnetic poles, is where many of induction magnetic poles 38L, 38R), made of soft-magnetic material is located in a linear direction, and a number of induction magnetic poles located between the first near magnetic poles and the second near the magnetic poles,
characterized in that the distance (L2) between the opposite ends in the linear direction of the induction magnetic poles 38L, 38R) number of induction magnetic poles is smaller than at least one of the distances (L1)corresponding to an electrical angle of 180° magnetic poles (21L, 21R) of the first number of magnetic poles, and the distance (L0)corresponding to an electrical angle of 180° magnetic poles (52L, 52R) of the second number of magnetic poles.

14. Magnetic machine according to any one of p or 13, in which one of the first number of magnetic poles and the second number of magnetic poles contains many anchors (21L, 21R), while the moving magnetic field is generated through the control of electrical energy for many of anchors (21L, 21R), which moves at least one of the first number of magnetic poles and the second number of magnetic poles and the number of induction magnetic poles.

15. Magnetic machine according to any one of p or 13, in which one of the first number of magnetic poles and the second number of magnetic poles contains many anchors (21L, 21R), and at least one of the first number of magnetic poles of the second number of magnetic poles and the number of induction magnetic poles is moved by an external force, thanks electromotive force is generated in multiple anchors (21L, 21R).

16. Magnetic machine according to any one of p or 13, in which at least one of the first number of magnetic poles, the second number of magnetic poles and the number of induction magnetic poles is moved under the action of external forces so as to move at least one of the other two rows.



 

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7 cl, 3 dwg

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