JP2005094989A - Method for manufacturing rotary electric machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve productivity by achieving simplification by further improving assembling performance by making a magnetic pole iron core structure and a winding structure as a basic constitution in a stator used as a rotary electric machine by combining a plurality of DC and AC electromagnets formed of a bobbin-type winding and a magnetic pole iron core, and to enable the diffusion and spread of the rotary electric machine not only to small-sized equipment, but also to large-sized equipment. <P>SOLUTION: The structure is made so that assembling workability is improved by making the magnetic pole iron core and the winding into a block (a module) making use of characteristics of the winding having a concentrated winding structure such as a bobbin. The material for the magnetic pole iron core is composed and manufactured of an iron sintered material and a laminated iron core made of an electromagnetic steel sheet. Therefore, the material can be applied freely to the iron core of the stator with the different number of poles and a different capacity, and the structure which can be applied freely to the equipment with the stators having the different number of poles and a different capacity to not only the small-sized equipment, but also to the large-sized equipment is provided. A magnetic path and a magnetic pole structure are surely formed, and a magnetic force is strengthened. As a result, the workability and the productivity are improved significantly together with the stability of performance and the reliability of a product, and costs are reduced and large effects are exerted. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a manufacturing method for expanding the use not only in small equipment but also in large-sized equipment in a rotating electrical machine that is used by combining a plurality of direct current and alternating current electromagnets formed by a bobbin winding and a magnetic core. .

Generally, the winding for electromagnetic coupling used in a conventional generator or electric motor stator is distributed. In addition, the laminated magnetic steel sheet is manufactured by incorporating a winding into a slot provided for winding insertion.
After installing the winding, the end of the winding is connected, and the end coil is shaped and fixed, so the workability is poor, the process is long, and reliability such as dielectric breakdown during use due to scratches etc. during work Reduction, entanglement and interference between narrow slots and windings, or reduction in slot space factor (usually 50%) to improve workability in assembly work, increase in cost due to extra end coil extension, end coil part In other words, the loss of efficiency and output due to an increase in resistance loss and an increase in leakage magnetic flux were imitated.
Moreover, mechanization of production was difficult, and when it was implemented, the equipment cost was large. Further, in the case of low voltage, medium-sized or large-sized devices, the winding wrinkles became larger and the workability was further deteriorated, resulting in a further significant cost increase.

  When changing the number of poles in the conventional structure, the winding is changed. However, except when dealing with a particularly large outer shape of the iron core, the limit is usually 8 poles.

  In the case of a magnet type electric motor or generator, output adjustment, starting torque adjustment, and efficiency increase adjustment are mainly performed by adjusting the strength of a fixed magnet in a winding and a rotor. The iron core is generally laminated integrally, and there is no division method.

  In addition, an electric machine that uses a conventional iron core winding structure in an ultra-high temperature environment has a limit of 250 degrees for the combined temperature of the ambient temperature and the coil.

  Conventional rotating electrical machines have very low efficiency at low speed and low output, and 20 to 30% is common even with magnet type rotating electrical machines.

Recently, for this improvement, the stator of the generator and the motor is composed of, for example, a bobbin type electromagnet, and the rotor is, for example, a magnetic core using a magnet or an electromagnet and a combination thereof, and a gap between the stator and the rotor. The magnetic pole structure is of a type in which the stator or rotor has a skew effect or the like alone or in the opposite direction by forming the shape of the magnetic pole facing to a parallelogram and linearly or deviating in the circumferential direction. There exists patent document 1 which made it.
JP 2000-324768 A

  The problem to be solved is to solve the simplification of the structure, the realization of a composite functional electric machine, etc. by the stator and rotor windings and the iron core structure and the configuration of the alternator and the motor. Due to the stator and rotor windings and core structure of AC generators, motors, etc., and its structure, etc., it is possible to simplify the iron core structure / configuration / materials and winding structure, and handle small, many, and mass production. The purpose is to solve the technical problem to realize a composite structure and to put it to practical use in a wide range from small to large rotating electrical machines.

To simplify the stator structure of the rotating electrical machine and the winding structure of the rotor, the iron core structure / configuration / material and the winding structure are simplified. For example, the winding is a concentrated winding structure such as a bobbin so that the magnetic field of the magnetic core can be formed. The iron core is structurally designed to reduce the current loss even in the magnetic field and is easy to work. The material is made of an iron sintered material or a laminated iron core of electromagnetic steel sheets.
The present invention is an assembly manufacturing method that devises a configuration that more specifically embodies these.

A first invention is a stator in which a plurality of direct current or alternating current electromagnets formed by a bobbin type winding and a magnetic core are used as a rotating electric machine. It consists of an iron core (auxiliary yoke part), a magnetic pole core pressing plate, a winding body, and a partition plate for each phase. The magnetic pole core and magnetic path forming iron core (auxiliary yoke part) are made of iron-based sintered material or electromagnetic steel plate. It shall be by lamination, etc.
The magnetically coupled magnetic pole core is formed in a “U” shape, and the shape of the magnetic pole part (pole piece part) of the magnetic core facing the rotor is a substantially parallelogram.
The magnetic path forming iron core A (auxiliary yoke A) is formed on the opposite side of one “U-shaped” that forms at least the magnetic path forming (yoke) of the magnetic core, and the other “U-shaped” is formed on the other side. A magnetic path forming iron core B (auxiliary yoke portion B) is provided on the back surface to have a magnetic path / magnetic pole structure.

  The second invention is the same as that of the first invention, wherein the magnetic path forming iron core A and the magnetic path forming iron core B (auxiliary yoke part B) are shared on the outer periphery of the “U” shape of the magnetic path part (yoke part) of the magnetic core. In addition, a magnetic path forming iron core C is provided, and the length in the axial direction and the circumferential direction of the magnetic path / magnetic pole structure is shortened.

  According to a third aspect of the present invention, in the first aspect, in contact with the inner periphery of the “U” shape of the magnetic path portion (yoke portion) of the magnetic core, the axial direction from the “U” shape magnetic pole of the magnetic path portion (yoke portion) A long cylindrical magnetic field adjusting ring is made of an iron-based sintered material or a laminated material of electromagnetic steel sheets, smoothing the magnetic field in the gap to eliminate cogging and improving the characteristics.

  According to a fourth aspect of the present invention, in the first aspect of the present invention, the inner side of the “U” shape of the magnetic path portion (yoke portion) of the magnetic core is connected to the “coil” of the magnetic path portion (yoke portion) via a cylindrical nonmagnetic material. The cylindrical magnetic field adjustment ring that is longer in the axial direction than the magnetic pole is made of iron-based sintered material or laminated material of electromagnetic steel sheets, smoothing the magnetic field in the air gap, eliminating cogging, and improving the characteristics Features.

  According to a fifth aspect of the present invention, in the first aspect, a cylindrical magnetic field adjustment ring is provided by a ferrous sintered material or a laminated material of electromagnetic steel sheets over a part or the entire axial length of the outer periphery of the rotor, and the magnetic field in the gap is provided. It is characterized by smoothness, cogging, and improved characteristics.

  According to a sixth aspect of the present invention, in the first aspect, the cylindrical magnetic field adjustment ring is formed on the iron-based sintered material or the laminated material of the electromagnetic steel sheets through the nonmagnetic material over a part or the entire length of the outer circumference of the rotor. It is characterized in that the magnetic field of the air gap is smoothed to eliminate cogging and improve the characteristics.

  A seventh invention is characterized in that the invention 4 and the invention 5 are combined, the magnetic field of the air gap is made smoother, cogging is eliminated, and the characteristics are improved.

  According to an eighth aspect of the present invention, in the rotating electric machine described above, a claw is provided in a part of the “U” shape of the magnetic path part (yoke part) of the magnetically poled magnetic core, and the magnetic path forming iron core A (auxiliary yoke part A) Or a magnetic path forming iron core B (auxiliary yoke portion B) having a plurality of slots for assembling the magnetic pole iron core with the claw as a guide to have a magnetic path / magnetic pole structure.

  According to a ninth aspect of the present invention, in the rotating electric machine described above, the magnetically coupled magnetic pole core is formed in a “U” shape, and the shape of the magnetic pole portion (pole piece portion) of the magnetic core that faces the rotor is substantially a parallelogram. And providing a support frame for fixing and holding the shape of the magnetic pole part (pole piece part), and having a magnetic path / magnetic pole structure by assembling the magnetic pole core.

  According to a tenth aspect of the present invention, in the rotating electric machine described above, a lead wire groove is formed in the magnetic path forming iron core (auxiliary yoke portion) and the partition plate for the lead wire from the winding body for electromagnetic coupling to the magnetic pole iron core of each phase. Is provided.

  The eleventh invention is characterized in that, in the rotating electrical machine described above, a lead guide is provided when inserting a lead wire from a winding body for electromagnetic coupling to the magnetic core of each phase.

  According to a twelfth aspect of the present invention, in a rotating electrical machine using a magnet, the iron in the iron core portion holding the permanent magnet of the rotor is replaced with a non-magnetic material to prevent leakage of magnetic flux between the magnets. It is characterized in that it can be applied.

  According to a thirteenth aspect of the present invention, in a rotating electrical machine using magnets, the iron core portion holding the permanent magnet of the rotor is replaced with a non-magnetic material that is lighter than iron, so that it can be applied to equipment with a large capacity. It is characterized by preventing magnetic flux leakage and reducing the weight of the rotor.

  In a fourteenth aspect of the present invention, in the present invention 12 or 13, the iron core holding the permanent magnet of the rotor is replaced with a conductive nonmagnetic material from iron to prevent leakage of magnetic flux between the magnets, and to a device with a large capacity. It can also be applied, and is characterized by being able to start itself at the time of induction startup.

  According to a fifteenth aspect of the present invention, in the above rotating electrical machine, the magnetic path portion (yoke portion) of the magnetically poled magnetic core and the magnetic path forming iron core C are laminated with a silicon steel plate and a nonmagnetic material having electrical insulation, It has a magnetic path / magnetic pole structure that prevents eddy current when a magnetic field is adjusted or a high frequency magnetic field is generated, and enables high performance and high efficiency.

A first invention is a stator in which a plurality of direct current or alternating current electromagnets formed by a bobbin type winding and a magnetic core are used as a rotating electric machine. It consists of an iron core (auxiliary yoke part), a magnetic pole core pressing plate, a winding body, and a partition plate for each phase. The magnetic pole core and magnetic path forming iron core (auxiliary yoke part) are made of iron-based sintered material or electromagnetic steel plate. It shall be by lamination, etc.
As one block of magnetic poles, the magnetically coupled magnetic pole cores are stacked in a “U” shape, and the shape of the magnetic pole part (pole piece part) of the magnetic pole core facing the rotor becomes a substantially parallelogram. Thus, the magnetic pole part (pole piece part) is formed.
A magnetic path forming iron core B (auxiliary yoke part B) provided in common as a block for each phase is provided on the back surface of the magnetic path part (yoke part) of the magnetic pole iron core. The magnetic path forming iron core A (auxiliary yoke portion A) formed so as to be independent for each block is assembled into a partition plate using a magnetic core push plate.
After inserting the winding body inside the “U-shape”, similarly, as the other magnetic pole block, the magnetic path portion (yoke portion) of the magnetic pole core faces the “U-shape”. The magnetic path forming iron core A (auxiliary yoke portion A) is assembled in a “b” shape to face each block to form a closed magnetic path.
With such a structure, building blocks of each phase are formed to form a magnetic path / magnetic pole structure. As a result, it is possible to enhance the productivity of the workability, the assembly workability and the like as well as the reliability of the magnetic force strengthening in the magnetically coupled magnetic core.

According to a second aspect of the present invention, in the above rotating electric machine, as one of the magnetic pole blocks, the magnetically coupled magnetic core is formed in a “U” shape and stacked, and the magnetic pole portion of the magnetic core that faces the rotor (pole) The magnetic pole part (pole piece part) is formed such that the shape of the piece part is a substantially parallelogram.
A magnetic core with a claw provided on, for example, a part of the back surface of the “U” shape of the magnetic path part (yoke part) of the magnetic core, and the claw as a guide in an instruction frame provided as a block for each phase. After having a plurality of slots for assembling, a partition plate formed so as to be independent for each block of the other magnetic pole is assembled into the partition plate using a magnetic core push plate.
The rotating electrical machine described above, which, after inserting the winding body inside the “U-shaped”, is the other magnetic pole block and faces the “U-shaped” of the magnetic path portion (yoke portion) of the magnetic core. In the magnetic core part of the magnetic pole core (yoke part), the cogging is almost completely eliminated while strengthening the magnetic field in the gap part between the stator and the rotor formed by the windings and the stator. Therefore, a cylindrical ring made of iron, iron sintered material, silicon steel plate, etc. is placed on the inner surface of the stator and the outer surface of the rotor, ensuring performance and reliability, workability, assembly workability, etc. Productivity can be improved. The cylindrical ring can be provided with a skew groove as needed, or a groove for improving smooth transition of the magnetic field of each phase.
Further, in order to prevent a short circuit between the magnetic poles, it is possible to enhance the effect by mounting the magnetic poles via a non-magnetic material instead of directly arranging them on the inner surface of the stator or the outer surface of the rotor.
The stator is assembled in a “B” shape relative to each block, and the magnetic path forming iron core C is disposed on the outer periphery of the “U” shape of the magnetic path portion (yoke portion) of the magnetic pole core. The magnetic path is formed so as to be the shortest.
Such a structure facilitates positioning, facilitates assembly, prevents positional displacement after assembly, forms a building block for each phase, and forms a magnetic path / pole structure. As a result, the coupling between the magnetic pole core and the magnetic path forming iron core (auxiliary yoke) by electromagnetic coupling is further ensured, and the magnetic force of the magnetic path section (yoke) in the magnetic pole core that is electromagnetically coupled is enhanced. Performance and reliability And productivity such as workability and assembly workability can be enhanced.

According to the third, fourth, fifth, sixth and seventh inventions, in the above-described rotating electrical machine, a stator and a rotor formed by a “U-shape” of a magnetic path portion (yoke portion) of the magnetic core and a winding In order to eliminate cogging almost completely while strengthening the magnetic field in the gap between the two, a cylindrical ring made of iron, iron sintered material, silicon steel plate, etc. is attached to the inner surface of the stator or the outer surface of the rotor. It is possible to secure performance and reliability, and to enhance productivity such as workability and assembly workability. The cylindrical ring can be provided with a skew groove as needed, or a groove for improving smooth transition of the magnetic field of each phase.
Further, in order to prevent a short circuit between the magnetic poles, it is possible to enhance the effect by mounting the magnetic poles via a non-magnetic material instead of directly arranging them on the inner surface of the stator or the outer surface of the rotor.
According to an eighth aspect of the present invention, in the above-described rotating electric machine, as one of the magnetic pole blocks, the magnetically coupled magnetic pole iron core is formed in a “U” shape and stacked, and the magnetic pole portion of the magnetic pole iron core (pole) facing the rotor The magnetic pole part (pole piece part) is formed such that the shape of the piece part is a substantially parallelogram.
A magnetic path forming iron core B (auxiliary yoke portion B) provided in common as a block for each phase, for example, by providing a claw on a part of the back surface of the magnetic core (yoke portion) of the magnetic pole iron core. Magnetic path forming iron core A (auxiliary yoke portion A) formed so as to be independent for each block of the other magnetic pole after having a plurality of slots for incorporating the magnetic iron core with the claw as a guide Are assembled into a partition plate using a magnetic core push plate.
After the winding body is inserted inside the “U” shape, the magnetic path forming iron core is the opposite of the magnetic pole portion of the magnetic pole core (yoke portion) as the other magnetic pole block. A (auxiliary yoke part A) is opposed to each block so as to form a closed magnetic circuit in a “b” shape.
Such a structure facilitates positioning, facilitates assembly, prevents positional displacement after assembly, forms a building block for each phase, and forms a magnetic path / pole structure. As a result, the coupling between the magnetic pole core and the magnetic path forming iron core (auxiliary yoke) by electromagnetic coupling is further ensured, and the magnetic force of the magnetic path section (yoke) in the magnetic pole core that is electromagnetically coupled is enhanced. Performance and reliability And productivity such as workability and assembly workability can be enhanced.

According to a ninth aspect of the present invention, in the above rotating electric machine, as one of the magnetic pole blocks, the magnetically coupled magnetic pole iron core is formed in a “U” shape and stacked, and the magnetic pole portion of the magnetic pole iron core (pole) facing the rotor The shape of the piece portion is a substantially parallelogram, and a support frame for fixing and holding the shape of the magnetic pole portion (pole piece portion) is provided.
A magnetic path forming iron core B (auxiliary yoke part B) provided in common as a block for each phase is provided on the back surface of the magnetic path part (yoke part) of the magnetic pole core. A magnetic path forming iron core A (auxiliary yoke portion A) formed so as to be independent for each block of magnetic poles is assembled into a partition plate using a magnetic iron core pressing plate.
After the winding body is inserted inside the “U” shape, the magnetic path forming iron core is the opposite of the magnetic pole portion of the magnetic pole core (yoke portion) as the other magnetic pole block. A (auxiliary yoke part A) is opposed to each block so as to form a closed magnetic circuit in a “b” shape.
With such a structure, the shape of the magnetic pole core is well assisted, easy to assemble and prevented from being deformed after assembling, and building blocks for each phase are formed to form a magnetic path / magnetic pole structure. As a result, the reliability, performance and reliability of the magnetic force enhancement in the magnetically coupled magnetic pole core can be improved, and productivity such as workability and assembly workability can be enhanced.

According to the effects of the first to ninth inventions, as a rotating electric machine, in a stator used by combining a plurality of direct current or alternating current electromagnets formed by a bobbin type winding and a magnetic core, a block is formed, and a simple formation is achieved.・ By ensuring the formation of the magnetic pole structure and strengthening the magnetic force, the stability of the performance and the reliability of the product are improved, and the building block is formed, and the productivity by assembling and the like is achieved.
In addition, because of the simple building block structure, the assembly workability is good, the production mechanization is easy, and the equipment cost when implementing it is small.

The windings are concentrated windings, and the windings and magnetic cores are independent for each phase. As a rotating electrical machine, changes and adjustments such as output capacity adjustment, starting torque adjustment and efficiency increase are divided assembly. It is a building block type and easy.
In addition, a structure that improves the performance and productivity is realized by using a sintered material or a laminated structure for the magnetic pole part and the magnetic path part. In addition, a split core that can be applied to a variety of small-scale production of iron cores and large and small capacities, and an iron core structure in which the number of poles can be changed freely by attaching the magnetic poles.

Moreover, in the case of not only low voltage but also medium-sized and large-sized devices, the diameter of the winding becomes relatively small, so that workability is improved and further cost reduction can be realized.
Further, the number of poles can be easily changed, and the winding structure is simple and easy to change. It is possible to realize more than 8 poles without specially increasing the outer shape of the iron core.

According to a tenth aspect of the present invention, there is provided a stator in which a plurality of DC or AC electromagnets formed by a bobbin type winding and a magnetic core are used as a rotating electric machine. It consists of an iron core (auxiliary yoke), a magnetic pole core retainer plate, a winding body, and a partition plate for each phase. The magnetic pole core and magnetic path forming iron core (auxiliary yoke) are made of laminated iron-based sintered material or electromagnetic steel plate, etc. The shape of the magnetic pole part (pole piece part) of the magnetic core facing the rotor is a substantially parallelogram,
A lead wire groove is provided in the magnetic path forming iron core (auxiliary yoke) and the partition plate for the lead wire from the winding body for electromagnetic coupling of each phase, and the lead wire groove is incorporated into the casing of the rotating electric machine.
With such a structure, the electromagnetic coupling can be done with a short wire without taking up a place by winding the magnetic pole core.
A rotating electrical machine can be formed without being constrained by end coils, and productivity of the rotating electrical machine, such as performance, downsizing, workability, and assembly workability, can be reliably enhanced.

In the eleventh aspect of the present invention, a lead block is provided to insert a lead wire from the winding body for electromagnetic coupling of each phase, thereby forming a building block to ensure the above-described effect, It is possible to reliably enhance productivity such as mechanical protection, electrical insulation / high temperature heat resistance protection, and assembly workability.
In other words, there is no complicated work such as forming and fixing the end coil after the winding is installed, the process is short, and reliability such as dielectric breakdown during use due to scratches during the work, etc. There is no decrease, there is no entanglement or interference between narrow slots and windings, and there is no decrease in the slot space factor for improving the workability of the assembly work. There is no reduction in efficiency or output due to an increase in resistance loss or leakage magnetic flux.

  In the structure of the present invention, a rotating electrical machine used in an ultra-high temperature environment can be easily realized even at 250 ° C. or higher at a temperature obtained by combining the ambient temperature and the temperature rise value of the coil.

  According to a twelfth aspect of the present invention, in a rotating electrical machine using magnets, the iron core holding the permanent magnet of the rotor is replaced with a nonmagnetic material from iron to prevent leakage of magnetic flux between the magnets as the size of the rotor increases. Therefore, it can be applied to a device having a large capacity.

  According to a thirteenth aspect of the present invention, in a rotating electrical machine using magnets, a magnetic core between magnets is used so that the iron core holding the permanent magnet of the rotor is replaced with a non-magnetic material that is lighter than iron so that it can be applied to a device with a large capacity. Leakage can be prevented, the weight of the rotor can be reduced, and the weight of the shaft and the loss of the bearing can be reduced.

  14th invention changes the iron core part holding the permanent magnet of a rotor to a conductive nonmagnetic material that is lighter than iron, and prevents leakage of magnetic flux between magnets so that it can be applied to a large capacity device, It is possible to reduce the weight of the rotor and to enable self-starting during induction startup.

  According to a fifteenth aspect of the present invention, in the above rotating electrical machine, the magnetic path portion (yoke portion) of the magnetically poled magnetic core and the magnetic path forming iron core C are laminated with a silicon steel plate and a nonmagnetic material having electrical insulation, Prevents eddy currents during magnetic field adjustment and high-frequency magnetic field generation, enabling high-speed rotation while achieving high performance and high efficiency.

  Specifically, as shown in FIG. 1, the rotating electrical machine 1 of the present invention includes a stator 2 that is a combination of a plurality of DC or AC electromagnets formed by a bobbin winding and a magnetic core, and a magnet. It consists of a rotor 3, a rotating shaft 4, a housing 5 and the like used in combination.

An embodiment of the present invention is shown in FIGS. In a stator 2 that is used by combining a plurality of DC or AC electromagnets formed by a bobbin winding and a magnetic core, a magnetic core 6 that is electromagnetically coupled by the winding, a magnetic path forming iron (auxiliary yoke) 7, The support frame 8, the magnetic core pressing plate 9, the winding body 10, and the partition plate 11 for each phase are included. The magnetic pole core 6 and the magnetic path forming iron core (auxiliary yoke portion) 7 are formed by laminating iron-based sintered materials or electromagnetic steel sheets.
The magnetic core 6 is formed in a “U” shape and includes a magnetic pole part (pole piece part) 61 and a magnetic path part (yoke part) 62. Further, the magnetic path forming iron core (auxiliary yoke portion) 7 has a magnetic path forming iron core A (auxiliary yoke portion A) 71 at the position facing the “U-shaped” and the magnetic field at the rear position of the “U-shaped”. A path forming iron core B (auxiliary yoke portion B) 72 is included.

The assembly order of these components is as follows. First, as a block A21 of one magnetic pole (four poles in the example of FIG. 2), a magnetic path part (yoke part) 62 of the magnetic pole core 6 is formed on the partition plate 11. A magnetic path forming iron core B (auxiliary yoke portion B) 72 provided in common with the block A21 of the same magnetic pole is placed so as to come to a position on the back surface of the magnetic pole.
Next, the magnetically-coupled magnetic pole core 6 is formed by being laminated in a “U” shape so that the magnetic pole part (pole piece part) 61 of the magnetic core 6 facing the rotor 3 has a substantially parallelogram shape. The magnetic pole part (pole piece part) 61 (three pieces of the same pole) and the magnetic path part 62 are provided. If necessary, the shape of the magnetic pole core 6 can be maintained and maintained by the support frame 8. The support frame 8 makes it easy to assemble the magnetic core 6 and prevent deformation after the assembly.
A magnetic path forming iron core A (auxiliary yoke portion A) 71 formed so as to be independent for each other magnetic pole block at a position adjacent to the magnetic iron core 6 is simultaneously used by the magnetic iron core pressing plate 8 with a screw A12. The block 11 is assembled to the partition plate 11.
In this case, as shown in FIG. 3, for example, a claw 63 is provided in the magnetic path part (yoke part) 62 of the magnetic core 6 and a slot 73 is provided in the magnetic path forming core B (auxiliary yoke part B) 72. In this case, the magnetic pole core 6 can be easily positioned, easily assembled, and deviation after assembly can be prevented.
Next, after inserting the winding body 10 inside the “U-shaped” of the magnetic core 6,
As shown in FIGS. 3 and 4, the other magnetic pole block B22 is assembled in the same manner as the one magnetic pole block A21.
Further, the “U” -shaped facing of the magnetic path part (yoke part) 62 of the magnetic pole core 6 of the block A21 of one magnetic pole and the magnetic path forming iron core A (auxiliary yoke part A) of the block B22 of the other magnetic pole 71 is placed facing each other, and a closed magnetic circuit can be formed integrally by assembling in a “R” shape.

Further, as shown in FIG. 4, for example, in the case of three phases, the bobbin-type winding body 10 and the magnetic core 6 are formed so as to form a rotating magnetic field in accordance with a phase of 120 degrees of the three-phase wave. The AC electromagnet forms three magnetic pole portions (pole piece portions) 61 for each magnetic pole, and the integrated assembly of the phase blocks A and B having two to two poles is performed for each of the three phases. , B is shifted by 30 degrees and assembled and constructed as a stator 2 with screws B13.
In FIG. 4, for each phase, the lead wire 101 from the winding body 10 is connected to the external terminal through the notch 74 of the magnetic path forming iron core (auxiliary yoke portion) 7 and the notch 111 of the partition plate 11. In addition, a lead guide 102 is provided in order to hold a fixed protection between the housing 5 and the lead wire 101 is used as a mechanical, electrical insulating, and heat-resistant protection.

FIG. 5 shows the gap between the stator 2 and the rotor 3 formed by the “U-shape” of the magnetic path portion (yoke portion) 76 of the magnetic core and the winding body 10 in the above-described rotating electric machine. In order to eliminate cogging almost completely while strengthening the magnetic field, a cylindrical ring 80 made of iron, an iron sintered material, a silicon steel plate or the like is arranged on the inner surface of the stator 2 magnetic pole portion 6 or the outer surface of the rotor 3. In addition, performance and reliability can be ensured, and productivity such as workability and assembly workability can be enhanced. The cylindrical ring 80 may be provided with a skew groove as needed, or a groove for improving smooth transition of the magnetic field of each phase. The connecting ring provided on the outer periphery of the magnetic path portion of the magnetic pole core is made of a silicon steel plate, an iron sintered material 77, a coiled wound iron wire 78, and the like.
In addition, in order to prevent a short circuit between the magnetic poles, it is possible to increase the effect by mounting the magnetic poles via the non-magnetic members 31 and 33 instead of directly arranging them on the inner surface of the stator 2 or the outer surface of the rotor 3. .
With such a structure, building blocks of each phase are formed to form a magnetic path / magnetic pole structure. As a result, the reliability, performance and reliability of the magnetic force enhancement in the magnetically coupled magnetic pole core can be improved, and productivity such as workability and assembly workability can be enhanced.
In addition, it is easy to form not only small but also medium to large rotating electric machines.

In FIG. 6, a slot is newly provided in the outer peripheral portion of the magnet 271 inserted into the radial slot of the rotor core 206 of the rotor 203 of the present invention as a generator, and the magnetic field direction of the magnet 274 is set to the radial direction. When the rotor is rotating at a synchronous speed, a repulsion and an attractive force are always generated between the magnetic pole formed by the stator and the magnet 274, and a driving force is always generated during the rotation. , Increase output and improve efficiency.
Furthermore, by configuring the rotor core 206 of the rotor 203 of the present invention with a non-magnetic material 220 or a conductive non-magnetic material 221 as a generator, a rotating electric machine capable of further high output, high efficiency, and induction starting can be obtained. Is possible.

  FIG. 7 shows the rotating electric machine of FIG. 5 described above, in which the magnetic pole core (pole piece portion) 6 and magnetic path portion (yoke portion) 76 are combined with non-magnetic sheets 90 and 91 having electrical insulating properties to combine the magnetic pole and magnetic field. A path portion (yoke portion) is formed to prevent magnetic field adjustment and eddy currents when a high frequency magnetic field is generated, enabling high speed rotation while realizing high performance and high efficiency.

  As an application example of the present invention, the application range such as general industrial equipment, household electric equipment, automobile / vehicle equipment, medical equipment, electric equipment such as wind power / hydropower / firepower, etc. can be used very widely.

Rotating electric machine according to an embodiment of the present invention Block diagram of the stator of the embodiment of the present invention Another block diagram of the stator of the embodiment of the present invention Assembly drawing of rotor of embodiment of the present invention Assembly drawing of gap magnetic field adjustment ring of embodiment of the present invention Sectional drawing of the rotary electric machine which used the nonmagnetic material instead of the iron core of the rotor of the Example of this invention The figure which comprised the magnetic pole and magnetic short circuit ring of this invention Example with the silicon steel plate and the nonmagnetic board | substrate.

Explanation of symbols

1: Rotating electric machine 2,202: Stator 21: Stator block A 22: Stator block B
3,203: Rotor 40: Rotor core 5,205: Housing 6,206: Magnetic pole core 61: Magnetic pole part (pole piece part) 62: Magnetic path part (yoke part)
76: Laminated core yoke portion 77: Divided laminated core yoke portion 78: Winding core yoke portion 63: Claw 7, 80: Magnetic path forming iron core (auxiliary yoke portion)
71: Magnetic path forming iron core A (auxiliary yoke part A)
72: Magnetic path forming iron core B (auxiliary yoke part B)
73, 73 ': Slot 74, 74': Cut 90, 91: Electrically insulating non-magnetic material 8: Support frame 9: Magnetic core pressing plate 10, 204: Winding body 101: Lead wire 102: Lead guide 11: Partition plate 111: Cutting 12: Screw A 13: Screw B 30: Air gap 31: Non-magnetic material (air gap)
33, 220, 221: non-magnetic material (rotor core)
4, 212: shaft 271, 272, 274: magnet

Claims (15)

As a rotating electrical machine, in a stator that uses a combination of multiple DC or AC electromagnets formed by bobbin windings and magnetic pole cores, the magnetic pole cores that are electromagnetically coupled by the windings and the magnetic path forming iron core (auxiliary yoke) A magnetic pole core pressing plate, a winding body, and a partition plate for each phase. The magnetic pole core and the magnetic path forming iron core (auxiliary yoke part) are made of laminated iron-based sintered material or electromagnetic steel sheet,
The magnetically coupled magnetic pole core is formed in a “U” shape, and the shape of the magnetic pole part (pole piece part) of the magnetic core facing the rotor is a substantially parallelogram.
The magnetic path forming iron core A (auxiliary yoke A) is formed on the opposite side of one “U-shaped” that forms at least the magnetic path forming (yoke) of the magnetic core, and the other “U-shaped” is formed on the other side. A method of assembling and manufacturing a rotating electrical machine, characterized in that a magnetic path forming iron core B (auxiliary yoke portion B) is provided on the back surface and has a magnetic path / magnetic pole structure.   2. The magnetic path formation according to claim 1, wherein the magnetic path forming iron core A and the magnetic path forming iron core B (auxiliary yoke section B) are commonly used on the outer periphery of the “U” shape of the magnetic path section (yoke section) of the magnetic core. A method of assembling and manufacturing a rotating electrical machine, characterized in that an iron core C is provided and the length of the magnetic path / magnetic pole structure in the axial direction or circumferential direction is shortened.   2. The cylindrical shape according to claim 1, which is in contact with the inner periphery of the “U” shape of the magnetic path portion (yoke portion) of the magnetic core and is longer in the axial direction than the “U” shape magnetic pole of the magnetic path portion (yoke portion). A method of assembling and manufacturing a rotating electrical machine, characterized in that a magnetic field adjusting ring is provided by a ferrous sintered material or a laminated material of electromagnetic steel plates to smooth the magnetic field in the air gap to eliminate cogging and improve characteristics.   2. The “U-shaped” magnetic pole of the magnetic path part (yoke part) on the inner periphery of the “U-shaped” of the magnetic path part (yoke part) of the magnetic pole core according to claim 1 through a cylindrical nonmagnetic material. A rotating electric machine characterized in that a cylindrical magnetic field adjustment ring with a long axial direction is provided by a laminated material of iron-based sintered material or magnetic steel sheet, smoothing the magnetic field of the air gap to eliminate cogging and improving characteristics Assembly manufacturing method.   In claim 1, a cylindrical magnetic field adjusting ring is provided with a ferrous sintered material or a laminated material of electromagnetic steel sheets over a part or the entire length of the outer periphery of the rotor, and the magnetic field in the gap is smoothed to perform cogging. A method of assembling and manufacturing a rotating electrical machine, characterized in that the characteristics are improved by eliminating the rotating electrical machine.   In claim 1, a cylindrical magnetic field adjusting ring is provided with a laminated material of iron-based sintered material or electromagnetic steel sheet through a non-magnetic material over a part or the entire length of the outer periphery of the rotor. A method of assembling and manufacturing a rotating electric machine, wherein a magnetic field is smoothed to eliminate cogging and improve characteristics.   A method of assembling and manufacturing a rotating electrical machine, wherein the invention is combined with the invention 4 and the invention 5, the magnetic field in the air gap is made smoother, cogging is eliminated, and the characteristics are improved.   2. A magnetic path forming iron core A (auxiliary yoke portion A) according to claim 1, wherein a claw is provided in a part of the “U” shape of the magnetic path portion (yoke portion) of the magnetic pole core to be electromagnetically coupled. Alternatively, the magnetic path forming iron core B (auxiliary yoke portion B) is provided with a plurality of slots for assembling the magnetic pole iron core using the claw as a guide, and has a magnetic path / magnetic pole structure. Production method.   9. The rotary electric machine according to claim 1, wherein the magnetically coupled magnetic pole iron core is formed in a “U” shape, and the shape of the magnetic pole part (pole piece part) of the magnetic pole iron core facing the rotor is substantially the same. A method of assembling and manufacturing a rotating electrical machine, comprising a parallelogram, a support frame for fixing and holding the shape of the magnetic pole part (pole piece part), and having a magnetic path / magnetic pole structure by assembling the magnetic pole core .   10. The rotating electrical machine according to claim 9, wherein a lead wire groove is formed in the magnetic path forming iron core (auxiliary yoke portion) and the partition plate for the lead wire from the winding body for electromagnetic coupling to the magnetic pole iron core of each phase. A method of assembling and manufacturing a rotating electrical machine, comprising:   11. An assembly of a rotating electrical machine according to claim 10, wherein a lead guide is provided for inserting the lead wire from the winding body for electromagnetic coupling to the magnetic core of each phase in the rotating electrical machine described above. Method.   In a rotating electrical machine that uses magnets, the iron in the iron core that holds the permanent magnet of the rotor is replaced with a non-magnetic material to prevent leakage of magnetic flux between the magnets and to be applicable to equipment with a large capacity. Rotating electrical machines and electromagnetic equipment.   In a rotating electrical machine using magnets, the iron core that holds the permanent magnet of the rotor is replaced with a non-magnetic material that is lighter than iron, preventing leakage of magnetic flux between magnets so that it can be applied to equipment with a large capacity, Rotating electrical machines and electromagnetic equipment characterized by enabling weight reduction of rotors.   In Claims 9 and 10, the iron core holding the permanent magnet of the rotor is replaced with a nonmagnetic material that is more conductive than iron, so that leakage of magnetic flux between the magnets is prevented, and it can be applied to a device with a large capacity, Rotating electrical machines and electromagnetic equipment characterized by enabling self-starting during induction startup. 2. The rotary electric machine according to claim 1, wherein the magnetic path portion (yoke portion) and the magnetic path forming core C of the magnetic pole core to be electromagnetically coupled are laminated with a silicon steel plate and a nonmagnetic material having electrical insulation, A method of assembling and manufacturing a rotating electrical machine, characterized by having a magnetic path / magnetic pole structure that enables high performance and high efficiency by preventing eddy currents at the time of adjustment and generation of a high frequency magnetic field.

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