WO2005017318A2 - Machine rotative et son procede de fabrication - Google Patents

Machine rotative et son procede de fabrication Download PDF

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Publication number
WO2005017318A2
WO2005017318A2 PCT/US2004/026747 US2004026747W WO2005017318A2 WO 2005017318 A2 WO2005017318 A2 WO 2005017318A2 US 2004026747 W US2004026747 W US 2004026747W WO 2005017318 A2 WO2005017318 A2 WO 2005017318A2
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WO
WIPO (PCT)
Prior art keywords
magnetic
component
iron core
pole
magnetic path
Prior art date
Application number
PCT/US2004/026747
Other languages
English (en)
Other versions
WO2005017318A3 (fr
Inventor
Yukio Kinoshita
Original Assignee
Inoki, Kanji
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inoki, Kanji filed Critical Inoki, Kanji
Publication of WO2005017318A2 publication Critical patent/WO2005017318A2/fr
Publication of WO2005017318A3 publication Critical patent/WO2005017318A3/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Definitions

  • the present invention relates to a rotary machine in which multiple DC and AC magnets having bobbin type windings and magnetic pole iron cores are incorporated and a method of manufacturing the same, wherein the manufacturing method intends to expand its application into a wide range of applications including from compact devices to large equipment.
  • a stator in a conventional power generator or electronic device has windings wound in a distributed manner to induce electromagnetic coupling therein. These windings are built into slots provided on stacked electromagnetic steel plates for the inserting windings.
  • the post winding-embedment process involves connection of the edges of the windings, shaping and fixing the end of the coil, and the like, and these steps are complex, inefficient, and time-consuming.
  • the process diminishes efficiency, output, and reliability for the following reasons: scratches or similar damage that will break off the insulation thereof during operation; entanglement or interference between the windings within narrow slots; a reduction in the slot space factor below about 50% which is the level normally required for easy wire assembly; an increase in manufacturing cost due to the excessive extension of the end of the coil; an increase in resistance loss in the end of the coil; an increase in magnetic flux loss; and similar disadvantages.
  • the process is difficult to automate and requires a large capital investment in facilities if it is to be automated. Further, a low voltage-type device or a middle- or large-sized device requires windings of a larger diameter, which further aggravates manageability, resulting in greatly increasing costs of manufacturing.
  • the temperature is controlled so as only to rise up to 250 °C, which is the sum of the surrounding temperature and the temperature risen by coils.
  • a conventional rotary machine having a purely iron core winding configuration has a very low efficiency, particularly at low speed and low output.
  • the efficiency of a magnet-type rotating device under the same conditions is only 20-30%.
  • the present invention intends to solve at least one of the following problems of simplifying the configuration of the rotary machine and achievement of multiple functionalities therein in terms of the windings and the iron core configuration of a stator or rotor in an AC power generator, motor or the like, and the constitution or similar construction thereof.
  • the present invention further solves the problems of simplifying the configuration, constitution, and material of iron cores and the winding configuration to achieve multiple functionalities therein.
  • the present invention intends to solve another technical problem, which is to provide a rotary machine with the above simplifications that can accommodate production on a small scale or large scale with the capability to produce various models.
  • Another object of the present invention is to commercialize a broad range of rotary machine from large size to small size.
  • Simplification of the winding configuration for a stator or rotor involves simplifying the configuration-, constitution, material and winding configuration of the iron cores.
  • a concentrated winding configuration such as bobbin type that forms a magnetic field about the magnetic pole iron core components.
  • a magnetic field loses little current and attention can be focused on the workability of the iron cores.
  • the material used for the iron cores is a sintered material or a laminated configuration made from electromagnetic steel plates.
  • the present invention is a method of assembly or manufacturing of a rotating electronic device haying the configuration described above that concretely surely realizes the objectives.
  • An example of the invention is a rotary machine comprising a stator constructed with multiple DC or AC electromagnets that have bobbin type windings and magnetic pole iron cores.
  • the stator comprises: magnetic pole iron cores, which are electromagnetically coupled through the windings; a magnetic path-forming iron core or secondary yoke component; a magnetic pole iron core pressing plate; winding bodies; and a partition plate for partitioning each phase.
  • the magnetic pole iron cores to be electromagnetically coupled are laminated to give a parenthesis ("]" ) shape.
  • the pole components of the magnetic pole iron cores facing the rotor have a parallelogram shape.
  • a magnetic path-forming iron core A or secondary yoke component A is provided on the first facing plane of a first parenthesis shape of the magnetic path component or yoke component for forming a magnetic path for the magnetic pole iron core, and a magnetic path-forming iron core B or secondary yoke component B provided on the rear plane of a second parenthesis shape ("]" ) , that provides a magnetic path-pole configuration.
  • Another example of the invention provides an improvement in the above described rotary machine wherein the magnetic path-forming iron cores A and B (secondary yoke component B) are secured on the outer circumference of the parenthesis ("]" )-shaped magnetic path component or yoke component of the magnetic pole iron core, which are common components to each phase-block; and , a magnetic path-forming iron core C is formed on the outer circumference of the parenthesis ("]" )-shaped magnetic path, thereby reducing the length of the magnetic path-pole configuration in the axial and circumferential directions.
  • Another example of the invention provides an improvement in the above described rotary machine which further comprises a cylindrical ring for adjusting the intensity of the magnetic field generated provided on the inner circumference in contact with the parenthesis ("]" )-shaped magnetic path component or yoke component; wherein the cylindrical ring is made of a sintered iron material or a laminated member of electromagnetic steel plates whose axial length is greater than that of the parenthesis-shaped pole of the magnetic path component or yoke component so as to generate a smooth magnetic field, thus to eliminate cogging and improve the properties thereof.
  • Still another example of the invention provides an improvement in the above described rotary machine which further comprises a cylindrical ring for adjusting the intensity of a magnetic field generated about the inner circumference of the parenthesis ("]" )-shaped magnetic path component or yoke component of the iron core via a cylindrical non-magnetic member; wherein the cylindrical ring is made of a sintered iron material or a laminated member of electromagnetic steel plates whose axial length is longer than that of the parenthesis ("]" )-shaped pole of the magnetic path component or yoke component so as to generate a smooth magnetic field, thus to eliminate cogging and improve the properties thereof.
  • Still another example of the invention provides an improvement in the above described rotary machine which further comprises a cylindrical ring for adjusting the intensity of a magnetic field generated about a part or the entire vertical length of the outer circumference of the rotor; wherein the cylindrical ring is made of a sintered iron material or a laminated member of electromagnetic steel plates so as to generate a smooth magnetic field, thus to eliminate cogging improve the properties thereof.
  • Still another example of the invention provides an improvement in the above described rotary machine which further comprises a cylindrical ring for adjusting the intensity of a magnetic field generated about a part or the entire vertical length of the outer circumference of the rotor via a non-magnetic member; wherein the cylindrical ring being made of a sintered iron material or a laminated member of electromagnetic steel plates so as to generate a smooth magnetic field, thus to eliminate cogging and improve the properties thereof.
  • Still another example of the invention combines two of the above described improvements , thus to eliminate cogging and improve the properties thereof.
  • Another example of the invention involves a rotary machine which further comprises a pin on a part of the parenthesis ("]" )-shaped magnetic path component or yoke component of the magnetic pole iron core to be electromagnetically coupled and multiple groove holes for confining the magnetic pole iron core into the support frame utilizing the pin, thereby providing a magnetic path-pole configuration.
  • Still another example of the invention involves a rotary machine wherein the magnetic pole iron cores to be electromagnetically coupled are laminated to give a parenthesis shape; the pole component of the magnetic pole iron cores facing the rotor are shaped in a parallelogram; the rotating electronic device further comprises a support frame for holding the shape of the pole component or pole piece component securely before assembling the magnetic pole iron cores, thereby providing a magnetic path-pole configuration.
  • Still another example of the invention involves a rotary machine which further comprises a lead line groove on the magnetic path-forming iron core or secondary yoke component and the partition plate, thereby taking the lead line from the winding bodies to be electromagnetically coupled to the outside.
  • Still another example of the invention involves a rotary machine which further comprises a lead guide so as to insert the lead line from the winding bodies to be electromagnetically coupled to the magnetic pole iron cores of each phase.
  • Still another example of the invention involves a rotary machine using magnets wherein the iron used to construct the iron core component for holding permanent magnets on the rotor is replaced with a non-magnetic member, thereby preventing magnetic flux loss between magnets and making the invention applicable to devices of a large capacity.
  • Still another example of the invention involves an improvement in a rotary machine using magnets wherein the iron constructing the iron core component for holding permanent magnets on the rotor is replaced with a member made of non-magnetic material which is lighter than iron, thereby preventing magnetic flux loss between magnets, making the invention applicable to devices of a large capacity, and attaining a light weight rotor.
  • Still another example of the invention involves an improvement in a rotary machine wherein the iron core component for holding permanent magnets on the rotor is replaced with a conductive non-magnetic member, thereby preventing magnetic flux loss between magnets, making the invention applicable to devices of a large capacity, and achieving a self starting during an induced start-up.
  • Still another example of the invention involves a rotary machine as described above wherein the magnetic path component or yoke component of the magnetic pole iron core to be electromagnetically coupled and magnetic path-forming iron core C are constructed with laminated layers of Si steel plates and non-magnetic members having insulating properties, thereby providing a magnetic path-pole configuration that allows adjustment of intensities of the magnetic fields, prevents eddy currents despite a high-frequency magnetic field being generated, and attains a high spinning speed with high performance and high efficiency.
  • the invention provides a method of manufacturing a rotary machine, comprising the steps of putting multiple DC or AC electromagnets constructed with windings wound around bobbins and magnetic pole iron cores together to give a stator.
  • the stator comprises magnetic pole iron cores, which are electromagnetically coupled through the windings; magnetic path-forming iron cores or secondary yoke components; magnetic pole iron core pressing plates; winding bodies; and partition plates for partitioning each phase.
  • the first pole block having magnetic pole iron cores to be electromagnetically coupled is laminated to give a parenthesis shape, and the pole component (pole piece component) of the magnetic pole iron cores that faces the rotor is shaped in a parallelogram.
  • a magnetic path-forming iron core B or secondary yoke component B which is the block common to each phase, and iron magnetic path-forming iron core A or secondary yoke component A, which are provided to each second pole block independently, are together assembled in such a manner that said secondary yoke component B is held by the rear plane of the parenthesis-shaped magnetic path component (yoke component) of the pole irons on a partition plate that utilizes a magnetic pole iron core pressing plate.
  • the magnetic path-forming iron core A or secondary yoke component A is assembled such that each first and second block faces the other, forming a square layout in a similar manner.
  • each phase is given a building block provides the magnetic path-pole configuration.
  • the magnetic force that is electromagnetically coupled is reliably enhanced.
  • the productivity in the machinability and assembly, and the like, is also enhanced.
  • the first pole block has magnetic pole iron cores to be electromagnetically coupled that are laminated in a parenthesis ("]" ) shape, and the pole component (pole piece component) of the magnetic pole iron cores facing the rotor are shaped in a parallelogram.
  • Apin is provided, for example, on a part of the rear plane of the parenthesis-shaped magnetic path component (yoke component) of the magnetic pole iron core, and multiple groove holes are provided on the support frame, which is the block common to each phase such that the pin-guided magnetic pole iron cores are fitted therein. Then, a partition plate for isolating the blocks having the opposite polarity is assembled utilizing the magnetic pole iron core pressing plate.
  • the block having the second pole which is the facing plane of the parenthesis-shaped magnetic path component (yoke component) is assembled on the magnetic pole iron core in such a manner that each of the magnetic path-forming iron cores A (secondary yoke components A) face each other so as to form a closed square shaped layout.
  • a cylindrical ring made of iron is provided on the inner plane of the stator or on the outer plane of the rotor wherein this ring is made of a sintered iron material, Si steel plate or the like.
  • the performance and reliability are enhanced while increasing productivity in the machinability and assembly.
  • the cylindrical ring may be provided with a skewed groove or a groove capable of spreading the magnetic fields of each phase smoothly if required.
  • a cylindrical ring made of iron may be provided on the inner plane of the stator or on the outer plane of the rotor via a non-magnetic member, instead of being provided directly on the ring.
  • Stators may be assembled in a square shape and may be arranged on the outer circumferential portion of the parenthesis shape of the magnetic path component (yoke component) of the magnetic iron cores such that the stator in each of the blocks faces the other, thereby providing the shortest magnetic path.
  • a cylindrical ring may be provided on the inner plane of the stator or on the outer plane of the rotor wherein the ring is made of a sintered iron material, Si steel plate or the like, to completely eliminate cogging while enhancing the magnetic fields generated in the gap between the stator and rotor, specifically defined by the parenthesis shape of magnetic path component (yoke component) of the magnetic pole iron cores in the rotating device described above.
  • the performance and reliability are enhanced while increasing productivity in the machinability and assembly.
  • the cylindrical ring may be provided with a skewed groove or a groove capable of spreading of the magnetic fields from each phase smoothly if required.
  • a cylindrical ring made of iron may be provided on the inner plane of the stator or on the outer plane of the rotor via a non-magnetic member, instead of being provided directly on the ring.
  • One of the above examples of the invention involves the rotary machine described above that has a pole piece configuration as the first pole block in which the magnetic pole iron cores to be electromagnetically coupled are laminated to give a parenthesis shape and the pole component (pole piece component) of the magnetic pole iron cores facing the rotor is provided to give an approximate parallelogram shape.
  • Apin is provided, for example, on a part of the rear plane of the parenthesis-shaped magnetic path component (yoke component) of the magnetic pole iron core and; multiple groove holes are provided on the magnetic path-forming iron core B (secondary yoke component B), which is the common block to each phase such that the pin-guided magnetic pole iron cores are fitted thereto. Then, the magnetic path-forming iron core A (secondary yoke component A), which is provided to the second pole block independently is assembled on the partition plate utilizing the magnetic pole iron core pressing plate.
  • the block having the second pole which is the facing plane of the parenthesis-shaped magnetic path component (yoke component) is assembled on the magnetic pole iron core in such a manner that each of the magnetic path-forming iron cores A (secondary yoke components A) faces the other so as to form a closed square shaped layout.
  • the above configuration provides the building blocks of each of the phases with a magnetic path-pole configuration that ensures accuracy, performance, and reliability in the electromagnetic coupling of the magnetic pole iron cores and magnetic path forming iron cores (secondary yoke components).
  • the productivity thereof in terms of machinability, assembling and the like can thus be enhanced.
  • One of the above examples of the invention involves the rotary machine described above in which the first pole block having magnetic pole iron cores to be electromagnetically coupled is laminated to give a parenthesis shape, and the pole component (pole piece component) of the magnetic pole iron cores facing the rotor have a parallelogram shape.
  • a magnetic path forming iron core B or secondary yoke component B which is the block common to each phase, is assembled in such a manner that the secondary yoke component B is held by the rear plane of the parenthesis-shaped magnetic path component (yoke component) of the pole irons. Then, the magnetic path-forming iron core A or secondary yoke component A, which is provided to each second pole block independently, is built together on a partition plate utilizing the magnetic pole iron core pressing plate.
  • the magnetic path- forming iron core A or secondary yoke component A is assembled such that each first and second block faces the other forming a square layout in a similar manner.
  • each phase is given a building block provides the magnetic path-pole configuration.
  • the magnetic forces that are electromagnetically coupled through magnetic cores are reliably enhanced and productivity in machinability and assembly and the like is enhanced.
  • stator constructed with multiple DC or AC magnets having bobbin type windings and magnetic pole iron cores
  • stator is constructed with module blocks of a simple configuration, which ensures formation of the magnetic path-pole configuration and enhances intensity of the magnetic force. Accordingly, the performance is stabilized, reliability thereof is improved, and productivity is increased, taking advantage of the building block configuration which is easy to assemble.
  • windings take advantage of the concentrated winding and a magnetic pole iron core is provided to each phase independently in the form of a building block, it is easy to adjust the output, capacity, and actuation torque, and it is easy to enhance efficiency.
  • the use of a sintered material or of the laminated configuration for the pole components and magnetic path components also help to improve performance and productivity in the rotary machine.
  • the use of an independent pole component can permit small scale production of iron cores of various types. It also permits production of split-cores that can be applied to production of iron cores of both small and large capacities. The use of an independent pole component further allows the number of poles to be changed freely.
  • the diameter of the windings used in the middle- or large-sized device is relatively small, which provides better manageability and achieves a reduction in manufacturing cost.
  • the number of poles can be adjusted easily and the winding structure is simple and easy to rewind. More than eight (8) poles can be obtained without increasing the outer diameter of iron cores significantly.
  • a rotary machine comprising a stator constructed with multiple DC or AC electromagnets having bobbin type windings and magnetic pole iron cores.
  • the stator comprises: magnetic pole iron cores, which are electromagnetically coupled through the windings; a magnetic path-forming iron core (secondary yoke component); magnetic pole iron core pressing plates; winding bodies; and a partition plate for partitioning each phase.
  • the first pole block having the magnetic pole iron cores to be electromagnetically coupled is laminated to give a parenthesis shape and the pole component (pole piece component) of the magnetic pole iron cores facing the rotor is shaped in a parallelogram.
  • the magnetic path-forming iron cores (secondary yokes) and the partition plates are provided with a lead line groove to accommodate the lead line derived from windings for the use in electromagnetic coupling of each phases, and the rotor is built into a casing of the rotating electronic device.
  • the above configuration requires only a short wire for the windings that electromagnetically couple the magnetic pole iron cores and a small space.
  • the end of the coil thereof does not limit the reduction of the wire length during production of the rotating electronic device. Accordingly, the rotating electronic device exhibits good performance, increased productivity through a reduction in size, and enhancement in machinability and manageability during assembly, and the like.
  • a lead guide is provided to a building block such that the lead line for electromagnetic coupling of each phase is inserted thereto.
  • the presence of a lead guide ensures the above effects and further enhances mechanical stress protection, insulation, high temperature resistance and productivity in the assembly operation or similar improvements.
  • the post-embedment process steps after embedding of the windings in this invention do not include connection of the edges of the windings; shaping and fixing of the end-coils, and the like, which are complicated, inefficient, and time consuming. Therefore, the present invention is free from deteriorating reliability due to insulation breakage arising from scratches generated during handling, entanglement and interference between the windings in narrow slots, losing the slot space factor required for easy wire assembly, increasing manufacturing cost due to extension of the end of the coil, deterioration in resistance loss at the end of the coil, aggravation of magnetic flux loss, and deterioration in efficiency or output.
  • the rotary machine having the configuration of the present invention can be used under ultra-high temperatures and can operate at 250 °C or higher, which is the sum of the surrounding temperature and the temperature rise in the coil.
  • One of the above examples of the invention involves a rotary machine utilizing magnets wherein the iron core component holding the permanent magnets of the rotor is replaced with a non-magnetic member which is lighter than iron, thereby preventing magnetic flux loss between magnets and allowing the invention to be used for devices having a large capacity.
  • Another one of the above examples of the invention involves a rotary machine utilizing magnets wherein the iron core component holding permanent magnets of the rotor is replaced with a non-magnetic member which is lighter than iron, thereby preventing magnetic flux loss between magnets and allowing the invention to be used for devices of a large capacity, and reducing the weight of the rotors, shafts, and the amount of wear on the bearings.
  • One of the above examples of the invention involves replacement of the iron core component holding permanent magnets of the rotor with a non-magnetic member which is lighter than iron, thereby preventing magnetic flux loss between magnets and reducing the weight of the rotors and providing a self-start capability during an induced start.
  • Still another one of the above examples of the invention involves the rotary machine wherein the magnetic path component (yoke component) of the magnetic pole iron cores to be electromagnetically coupled and the magnetic path-forming iron core C are constructed with laminated layers of Si steel plates and non-magnetic members having an insulating property.
  • This configuration allows adjustment of intensities of the magnetic fields, and prevents eddy currents despite a high-frequency magnetic field being generated. It also achieves a high spinning speed with high performance and high efficiency.
  • Figure 1 is a rotating electronic device of an embodiment of the present invention.
  • Figure 2 is a block diagram of a stator of an embodiment of the present invention.
  • Figure 3 is another block diagram of a stator of an embodiment of the present invention.
  • Figure 4 is a diagram illustrating a rotor assembly of an embodiment of the present invention.
  • Figure 5 is a diagram illustrating a gap-magnetic field tuning ring assembly of an embodiment of the present invention.
  • Figure 6 is a cross sectional view of a rotating device utilizing non-magnetic bodies in place of iron cores of a rotor of an embodiment of the present invention.
  • Figure 7 is a diagram illustrating a gap-magnetic field tuning ring assembly in which magnetic poles and magnetic shorting ring are made of Si steel plates and non-magnetic member plates.
  • pole component pole piece component
  • non-magnetic members (rotor iron core component)
  • the rotating electronic device 1 comprises: a stator 2, which is constructed with multiple DC or AC electromagnets and bobbin type windings ; a rotor 3 which is a combination of multiple magnets; a rotating shaft 4; and a casing 5 and the like, which is the basic configuration
  • FIG. 2 and 3 illustrate embodiments of the present invention.
  • the stator 2 in which multiple DC or AC electromagnets constructed with the bobbin type windings are put together, comprises: a magnetic pole iron core 6 which is electromagnetically coupled via windings; a magnetic path-forming iron core (secondary yoke component) 7; a supporting frame 8; a magnetic pole iron core pressing plate 6; winding bodies 10; and a partitioning plate 11.
  • the magnetic pole iron core 6 and magnetic path-forming iron core (secondary yoke component) 7 are constructed of a sintered iron type material or stacked layers of electromagnetic steel plates or the like.
  • the magnetic pole iron core 6 is constructed with a pole component (pole piece component) 61 and magnetic path component (yoke component) 62 in a "parenthesis ("]" ) shape.”
  • the magnetic pole iron core 6 is further constructed with a magnetic path-forming iron core A (secondary yoke component A) 71 and a magnetic path-forming iron core B (secondary yoke component B) 72 which are positioned on the rear plane of the parenthesis shape.
  • the order of the assembly of the above configuration begins with the step of building the first poles (4 poles in the example of Figure 2), which are constructed by placing a magnetic path-forming iron core B (secondary yoke component B) 72 on partition plate 11 in such a manner that the secondary yoke component B is positioned on the rear plane of the "parenthesis shape" of the pole component (yoke component) 62 of the magnetic pole iron core 6.
  • the magnetic iron cores 6 to be electromagnetically coupled are laminated to give a parenthesis shape, and pole components (pole piece components) 61 having three same poles and magnetic path component 62 are arranged in such a manner that pole components (pole piece components) 61 of magnetic iron cores 6 give an approximate parallelogram shape.
  • Supporting frame 8 may be used to hold the shape of magnetic pole iron core 6 if required. The use of supporting frame 8 helps an operator assemble magnetic pole iron core 6 easily and prevents iron core 6 from deformation after assembly.
  • magnetic path-forming iron cores A (secondary yoke components A) 71 which are provided to each of the second pole blocks independently, are assembled simultaneously with core pressing plate 8 via screw Al 2 to give block 21.
  • magnetic path components (yoke components) 62 of magnetic pole iron core 6 are provided with a pin 63, for example, as illustrated in Figure 3, the magnetic pole iron cores 6 can be aligned and assembled more easily and the resulting assembly will not loosen.
  • the facing plane of the parenthesis-shaped magnetic path component (yoke component) 62 of the magnetic pole iron core 6 in first pole block A21 and the magnetic path-forming iron core A (secondary yoke component A) 71 in the second pole block B22 are arranged to face each other, thereby forming an integral body of a closed magnetic path having a closed square shape.
  • the lead line 101 from winding bodies 10 is connected to external terminals via magnetic path-forming iron cores (secondary yoke components) 7, notches 74, and notches 111 on partition plates 11 in each phase.
  • lead guide 102 for securing, protecting, and holding the lead line 101 is provided between winding bodies 10 and casing 5.
  • the lead line 101 is protected from mechanical stress, insulation breakage, and heat.
  • Figure 5 illustrates the rotating electronic device described above.
  • a cylindrical ring 80 made of iron may be provided on the inner plane of the stator 2 or on the outer plane of the rotor 3.
  • the ring 80 is made of a sintered iron material, Si steel plate or the like. The performance and reliability thereof are enhanced while improving productivity in machinability and assembly.
  • the cylindrical ring may be provided with a skewed groove or a groove capable of smoothly spreading the magnetic fields of each phase if required.
  • the connection ring provided on the outer circumference of the magnetic path component of the magnetic pole iron core is made of Si steel plate, a sintered iron material and a coil-like iron winding 78.
  • a cylindrical ring made of iron may be provided on the inner plane of the stator or on the outer plane of the rotor via a non-magnetic member, instead of being provided directly on the ring.
  • the above configuration provides a magnetic path-pole configuration in the form of building blocks for each of the phases.
  • the magnetic force generated at the magnetic pole iron core to be electromagnetically coupled is reliably enhanced, and the performance and reliability thereof is improved while increasing productivity in terms of machinability, assembly and the like.
  • the configuration also finds application not only in the small-sized but also in the middle-sized to large-sized rotating devices.
  • Figure 6 shows a power generator in which new slots are provided on the outer circumference portion of magnets 271, which is inserted into radial slots of rotating iron cores 206 of rotor 203 of the present invention, and the magnets 274 are inserted such that magnetic fields are generated in a radial direction. In this way, repelling or attracting forces are always generated between stator poles and magnets 274 as long as the rotor spins at a synchronized speed. The output and efficiency thereof are thus increased.
  • the power generator may have another configuration in which the rotor iron core 206 of rotor 203 of the present invention is constructed with a non-magnetic member 220 or conductive non-magnetic member 221, thereby providing an increased output, efficiency and induced actuation capability.
  • Figure 7 shows the power generator of Figure 5 in which the pole piece 6 and magnetic path components (yoke components) 76 are put together with sheets 90 and 91, which are insulating non-magnetic members, to provide magnetic poles and a magnetic path component (yoke component).
  • This configuration allows the power generator to tune [the intensity of] the magnetic fields, prevents eddy currents when high-frequency magnetic fields are generated, and achieves a high spinning speed with high performance and high efficiency.
  • Examples of applications of the present invention include general industrial devices, home electronic appliances, devices for automobiles or vehicles, medical devices, electronic devices using wind, water and fire, and the like. Accordingly, the present invention finds a wide range of applications.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

La présente invention a trait à une machine rotative comportant un stator dans lequel plusieurs aimants à courant continu et à courant alternatif sont incorporés dont la structure de base comprend des configurations de noyaux en fer à pôles magnétiques et d'enroulements. L'utilisation de la structure de noyaux en fer à pôles magnétiques et la configuration des enroulements fournit une configuration de dispositif simple et de manipulation aisée et ce procédé de fabrication va accroître sa productivité et étendre son application à une large gamme d'utilisations allant de dispositifs compacts à du matériel de grande dimension. La présente invention profite de la configuration d'enroulements telle que d'enroulements de type bobine dans lesquels des noyaux de fer à pôles magnétiques et des enroulements peuvent être incorporés pour produire des modules de blocs de construction, permettant d'accroître leur aptitude à la manipulation lors de l'assemblage. Des noyaux de fer à pôles magnétiques sont réalisés en un matériau fritté de fer ou de couches stratifiées de tôles d'acier électromagnétiques de manière à s'adapter à n'importe quel nombre de pôles ou de capacités d'un stator. La configuration de la présente invention permet également l'extension de son application allant de matériel de petite échelle à du matériel de grande échelle indépendamment du nombre de pôles ou de capacités du stator. Elle assure également la formation de la configuration de pôles de transmission magnétiques et améliore leur force magnétique, permettant ainsi la stabilisation de leur performance tout en accroissant considérablement la fiabilité de son produit. La configuration améliorant l'aptitude à la manipulation et la productivité peut réduire de manière significative les coûts de fabrication.
PCT/US2004/026747 2003-08-14 2004-08-16 Machine rotative et son procede de fabrication WO2005017318A2 (fr)

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JP2003293343 2003-08-14
JP2003-293343 2003-08-14

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WO2005017318A2 true WO2005017318A2 (fr) 2005-02-24
WO2005017318A3 WO2005017318A3 (fr) 2005-05-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008048638A1 (de) * 2008-09-24 2010-03-25 WÜRZ, Raimund Elektrischer Generator und Verfahren zum Betreiben des elektrischen Generators
FR2969855A1 (fr) * 2010-12-22 2012-06-29 Fed Mogul Sintertech Machine homopolaire.
CN105896771A (zh) * 2015-02-18 2016-08-24 通用汽车环球科技运作有限责任公司 多材料转子芯

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4795936A (en) * 1986-08-26 1989-01-03 Midwest Dynamometer & Engineering Co. Driven rotary shaft system using permanent magnets
US4949000A (en) * 1988-07-18 1990-08-14 Mueller And Smith, Lpa D.C. motor
US5945765A (en) * 1998-01-28 1999-08-31 Chen; Shung-Hsiung Interior stator assembly for a brushless motor with exciting sheets for enhancing rotor-driving force
US6013963A (en) * 1999-02-05 2000-01-11 Emec Energy, L.L.C. High efficiency electro-mechanical energy conversion device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4795936A (en) * 1986-08-26 1989-01-03 Midwest Dynamometer & Engineering Co. Driven rotary shaft system using permanent magnets
US4949000A (en) * 1988-07-18 1990-08-14 Mueller And Smith, Lpa D.C. motor
US5945765A (en) * 1998-01-28 1999-08-31 Chen; Shung-Hsiung Interior stator assembly for a brushless motor with exciting sheets for enhancing rotor-driving force
US6013963A (en) * 1999-02-05 2000-01-11 Emec Energy, L.L.C. High efficiency electro-mechanical energy conversion device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008048638A1 (de) * 2008-09-24 2010-03-25 WÜRZ, Raimund Elektrischer Generator und Verfahren zum Betreiben des elektrischen Generators
FR2969855A1 (fr) * 2010-12-22 2012-06-29 Fed Mogul Sintertech Machine homopolaire.
WO2012089972A1 (fr) * 2010-12-22 2012-07-05 Federal Mogul Sintertech Machine homopolaire
CN105896771A (zh) * 2015-02-18 2016-08-24 通用汽车环球科技运作有限责任公司 多材料转子芯

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