WO2017022044A1 - Dispositif de transmission d'énergie - Google Patents

Dispositif de transmission d'énergie Download PDF

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Publication number
WO2017022044A1
WO2017022044A1 PCT/JP2015/071902 JP2015071902W WO2017022044A1 WO 2017022044 A1 WO2017022044 A1 WO 2017022044A1 JP 2015071902 W JP2015071902 W JP 2015071902W WO 2017022044 A1 WO2017022044 A1 WO 2017022044A1
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WO
WIPO (PCT)
Prior art keywords
power transmission
rotor
stator
transmission device
bearing
Prior art date
Application number
PCT/JP2015/071902
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English (en)
Japanese (ja)
Inventor
則久 岩崎
正木　良三
榎本　裕治
卓男 王
Original Assignee
株式会社日立産機システム
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.)
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Application filed by 株式会社日立産機システム filed Critical 株式会社日立産機システム
Priority to PCT/JP2015/071902 priority Critical patent/WO2017022044A1/fr
Publication of WO2017022044A1 publication Critical patent/WO2017022044A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • 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
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Definitions

  • the present invention relates to a power transmission device, and relates to a power transmission device using an axial gap type rotating electrical machine.
  • ⁇ Axial gap type rotating electrical machines can be used as a motor that can easily generate torque as the radial cross-sectional area increases, and the shape can be flattened. In such a flat structure, the larger the moment of inertia, the more advantageous the output torque. Therefore, the structure and characteristics of the axial gap type rotating electrical machine can be utilized and applied to various applications.
  • Patent document 1 discloses the technique of a flywheel. Flywheels have a mechanism for storing energy using inertial forces, but losses such as mechanical loss and windage loss of a rotating disk are harmful to energy storage. Patent Document 1 discloses a technique for reducing windage loss even in a non-closed space by digging a spiral groove in a flywheel disk and urging the air flow backward in the rotational direction.
  • the rotating electrical machine is mechanically connected to a load (such as a flywheel or an impeller) of an application device to which the rotating electrical machine is applied through a shaft that rotates together with the rotor.
  • a load such as a flywheel or an impeller
  • the load layout environment requires closeness, it is necessary to partition the rotating electrical machine and the load storage area with a partition wall, etc., and to provide a shaft penetration part in the partition wall. This causes a problem that mechanical loss occurs due to friction with the airtight holding member.
  • a coil is provided on the radially outer peripheral side of the tooth extending in the rotation axis direction, a stator that generates a magnetic flux in the rotation axis direction from the tooth end surface, and a plurality of magnets having different magnetic poles are annularly arranged, and the teeth end surface
  • An axial gap type rotating electrical machine having a rotor facing the surface through a predetermined gap, a casing having a space for storing the stator and the rotor, and a storage area of each of the stator and the rotor in the casing being discontinuous.
  • Power having a partition partitioning as a space, a bearing disposed on the partition and rotatably supporting the rotor, and a load device disposed on the opposite side of the stator in the axial direction and rotating together with the rotor It is a transmission device.
  • a stator having a coil on the radially outer peripheral side of the teeth, generating a magnetic flux in the direction of the rotation axis from the tooth end surface, and a plurality of magnets having different magnetic poles are arranged in an annular shape, and a predetermined gap is provided between the tooth end surface and a predetermined gap.
  • a power transmission device comprising an axial gap type rotating electrical machine having a rotor facing the surface, wherein the stator is molded on the outer surface with a resin, the stator after the resin molding, the rotor, Is disposed in the rotational axis direction via a bearing, and the rotor includes a load device that is disposed on the opposite side of the stator in the axial direction and rotates together with the rotor.
  • the stator, the rotor, and the load device It is a power transmission device provided with the housing
  • FIG. 1 is a developed perspective view schematically showing a configuration of an axial gap type rotating electrical machine according to a first embodiment. It is an axial direction longitudinal cross-sectional view which shows the structure of the electric pump apparatus by Example 2 to which this invention is applied.
  • FIG. 6 is a developed perspective view schematically showing configurations of an axial gap type rotating electric machine and an impeller according to Embodiment 2.
  • FIG. 10 is a developed perspective view illustrating the configuration of an axial gap type rotating electrical machine and an impeller according to a modification of the second embodiment.
  • FIG. 1 is a developed perspective view schematically showing a configuration of an axial gap type rotating electrical machine according to a first embodiment. It is an axial direction longitudinal cross-sectional view which shows the structure of the electric pump apparatus by Example 2 to which this invention is applied.
  • FIG. 6 is a developed perspective view schematically showing configurations of an axial gap type rotating electric machine and an impeller according to Embodiment 2.
  • FIG. 10 is a developed perspective view illustrating the configuration of an
  • FIG. 10 is a perspective view schematically showing a configuration of a magnet according to a modified example of Example 2. It is an axial direction longitudinal cross-sectional view which shows the structure of the electric pump apparatus by Example 3 to which this invention is applied. It is an axial direction longitudinal cross-sectional view which shows the structure of the electric pump apparatus by Example 4 to which this invention is applied.
  • FIG. 10 is a developed perspective view schematically showing configurations of an axial gap type rotating electric machine and an impeller according to a fourth embodiment.
  • FIG. 1 is a sectional view in the axial direction of a power transmission device 1 according to a first embodiment to which the present invention is applied.
  • the power transmission device 1 includes a stator 2, a rotor 3, a shaft 4, and a bearing 7, and includes a stator case 5 and a load-side case 6 as a casing for storing these in an internal space.
  • the power transmission device 1 uses an axial gap type rotating electrical machine as the rotating electrical machine.
  • the stator 2 is formed of an annular body in which a plurality of teeth extend in the rotation axis direction, and is installed in the stator case 5.
  • the stator case 5 has a cylindrical shape with one axial opening, and has an inner cylinder portion 5 a as a storage area for the stator 2.
  • a flange portion 5b extending along the outer periphery in the radial direction is formed in the vicinity of the opening end edge of the stator case 5.
  • the length in the rotation axis direction of the stator 2 is smaller than the length from the bottom surface in the axial direction of the inner cylinder portion 5a to the intersection with the extension line in the axial direction of the flange portion 5b. When it is installed, the load side end face of the stator 2 is arranged so as not to exceed the extension line.
  • the load-side case 6 has a flat surface portion 6a on one end face in the axial direction and an outer peripheral wall portion 6b on the radially outer side, and a hollow portion 6c for installing the rotor 3 and the like together with the flat surface portion 6. It is.
  • the stator 2 and the rotor 3 are configured to be installed in another space that is discontinuously partitioned by a partition wall called a flat portion 6a.
  • the diameter of the flat portion 6a is larger than the diameter of the flange portion 5b.
  • Stator case 5 is connected to flat surface portion 6a via bolt 8 at flange portion 5b.
  • a cylindrical recess 6d is formed in the center of the bottom surface of the stator 2 side in the axial direction of the hollow portion 6c (the back surface side of the flat surface portion 6a), and a radial bearing 7 (ball, roller, needle, etc.) is interposed in the recess 6d.
  • the rotor 3 is arranged. More specifically, the inner peripheral surface of the recess 6d and the outer ring of the radial bearing 7 are connected, and the inner ring of the radial bearing and the outer peripheral surface of the rotor 3 are connected. Further, the magnet surface of the rotor 3 and the bottom surface of the recess 6d are not in contact with each other.
  • the present invention is not necessarily limited to a closed space, and the other side of the hollow portion 6c of the load-side casing 6 communicates with the outside in accordance with the specification of the application to which the application is applied (the flywheel 9 in this embodiment). It may be a configuration.
  • the rotor 3 has a magnet 31 and a yoke 32.
  • the magnet 31 has an annular shape as will be described later, and one end surface in the axial direction is supported by the yoke 32 by adhesion, fitting, or the like.
  • the shaft 4 is connected so as to rotate together with the center of the yoke 32, and is connected to the flywheel 9 at the end opposite to the yoke 32.
  • FIG. 2 shows a developed perspective view of the axial gap type rotating electrical machine 10.
  • the axial gap rotating electrical machine 10 includes a core 21, a coil 22, a magnet 31, and a yoke 32.
  • the stator 2 includes a core 21 and a coil 22 that is wound around a radially outer periphery of teeth formed on the core 21.
  • the core 21 is made of a soft magnetic material such as an electromagnetic steel plate, a powder magnetic core, an amorphous metal, or permendur. Except in the case of applying a powder magnetic core, in order to suppress the eddy current of the core, it is preferable to laminate in the circumferential direction or the radial direction.
  • the magnetic core that constitutes the core is electrically insulated, which increases the electrical resistance of the core, so that lamination is not necessary.
  • a rotating electrical machine such as a motor is a radial gap type composed of a rotor supported rotatably in a circumferential direction and a stator arranged via a gap in a radial direction for generating torque.
  • the magnetic flux is mainly in the radial direction. Therefore, in order to reduce the eddy current of the core, most of the stators are laminated with steel plates in the axial direction. In the case of an axial gap type rotating electrical machine, the magnetic flux is mainly in the axial direction, and in order to reduce eddy currents in the in-plane direction, electrical insulation is performed in a direction perpendicular to the flow of magnetic flux in the radial direction and circumferential direction. Necessary. Insulating methods include insulating paper, resin bobbins, insulating agents, and the like.
  • the core 21 is obtained by winding a foil strip made of amorphous metal in a roll shape around the rotation axis to obtain an annular body, and then cutting and cutting one axial portion radially from the axis.
  • a tooth portion protruding in the axial direction is obtained.
  • the portion other than the teeth functions as a yoke.
  • the manufacturing method of the core 21 is not restricted to this.
  • the coil 22 is made of a conductive member such as copper or aluminum, and is wound around the radially outer periphery of the teeth of the core 21. Further, an insulator such as insulating paper or a bobbin is inserted between the tooth portion of the core 21 and the coil.
  • the magnet 31 is made of a permanent magnet such as a neodymium sintered magnet, a ferrite magnet, or a bonded magnet.
  • FIG. 2B shows a perspective view of the magnet 31.
  • the magnet 31 has a configuration in which the magnetic poles are sectioned in a sector shape radially from the axial center. In this example, there are 8 poles, and the magnetic poles adjacent to each other in the rotation direction are different from each other in the axial direction.
  • the rotor 3 is opposed to the core 21 and the flat portion 6a of the load-side casing 6 in the rotation axis direction through a gap (see FIG. 1).
  • a change in the magnetic flux is directly received, and there may be a phenomenon in which an eddy current flows so that the magnetic flux is generated in a direction to prevent the change.
  • the neodymium sintered magnet When a neodymium sintered magnet is applied, the neodymium sintered magnet has a large energy product and a large torque can be expected, but on the other hand, it has a characteristic that electric resistance is low and eddy current flows easily.
  • the magnet 31 may be embedded in the yoke 32 to take measures such as reducing the influence of changes in magnetic flux.
  • NdFeB-based or SmFeN bonded magnets have a high residual magnetic flux density and can be expected to have a high output.
  • the yoke 32 is made of a soft magnetic material such as an electromagnetic steel plate, a powder magnetic core, an amorphous metal, or permendur, similarly to the core 21 of the stator.
  • the yoke 32 also changes in magnetic flux when the motor is driven.
  • the yoke 32 may be configured as an integral iron member.
  • the yoke 32 has a shaft 4 connected to the flywheel 9 in the center of the stator 2 and the end surface opposite to the axial direction.
  • the axial gap type rotating electrical machine 10 configured as described above is arranged in the stator case 5 or the load side case 6 as shown in FIG. 1 and a current is applied to the stator 2 so that the rotor 3 and the flywheel 9 rotate.
  • a current is applied to the stator 2 so that the rotor 3 and the flywheel 9 rotate.
  • the magnetic flux that flows from the stator 2 through the hollow portion 6a and the pole of the magnet 31 are repeatedly attracted and repelled, and the rotor 2 and the flywheel 9 are rotated.
  • the stator 2 side and the rotor 3 side can be spatially separated.
  • the flywheel 9 supported by the shaft 4 on the rotor 3 side is driven in the hollow portion 6c in which the surrounding environment is maintained under a certain pressure, thereby reducing windage loss and storing energy of the flywheel.
  • the rotor 3 can be installed without penetrating the flat portion 6a of the load side case 6, and a seal applied to the penetrating portion or the like becomes unnecessary, and there is an effect of reducing mechanical loss.
  • Embodiment 2 to which the present invention is applied will be described.
  • the second embodiment is an example in which an impeller (impeller) 51 is applied as a load device in place of the flywheel 9 of the first embodiment, and the electric pump device 11 is applied as a power transmission device.
  • the electric pump device 11 will be described in detail.
  • the same member as another Example shall attach
  • FIG. 3 shows a longitudinal sectional view of the electric pump device 11 in the axial direction.
  • the stator 2 and the stator case 5 are the same as those in the first embodiment.
  • the storage area of the stator 2 and the rotor 3 is discontinuously partitioned by the flat portion 6 a of the load side case 6.
  • the electric pump device 50 transports a liquid as a transport fluid.
  • the rotor 3 side of the load side case 6 shall be the area
  • the rotor 3 has an impeller 51 that is integrally connected to an end surface on the opposite side to the stator 2 in the axial direction.
  • the radial bearing 7 is a sealed bearing, and prevents liquid from entering the gap between the axial bottom surface of the recess 6 d and the rotor 3. Since the resistance of the rotating body in the liquid becomes disadvantageous as the diameter increases, the resistance applied to the rotor 3 is reduced by preventing the liquid from entering the gap, thereby improving the efficiency.
  • FIG. 4 shows an exploded perspective view of the armature and impeller 51 of the axial gap type rotating electric machine 10.
  • the impeller 51 is an impeller that sends out a conveying pressure that circulates liquid by rotation, and is made of a material such as resin.
  • the impeller 51 has an annular protrusion 51a having an inner diameter substantially the same as the outer diameter of the yoke 32 in the axial direction from the edge on the yoke 32 side.
  • the annular protrusion 51a extends to the same extent as the axial width of the yoke 32 and the magnet 31, and covers the peripheral surfaces of both with the inner diameter.
  • the magnet 31 or the yoke 32 is subjected to a rust prevention treatment.
  • a rust prevention treatment is not essential, but when applying a ferrite magnet, it is preferable to carry out a rust prevention treatment.
  • martensitic magnetic stainless steel such as SUS440c
  • rust prevention treatment is unnecessary, but it is preferable to carry out rust prevention treatment for iron or the like.
  • the configuration in which the annular protrusion 51a covers the circumferential surfaces of the yoke 32 and the magnet 31 also helps to prevent rust.
  • the electric pump device 10 of the second embodiment it is not necessary to pass through the flat portion 6a that divides the stator 2 and the rotor, the mechanical loss due to the seal or the like is reduced, and the device is downsized by simplifying the configuration. Can be achieved. In particular, in the relationship with the liquid, leakage to the stator 2 side is eliminated, and the reliability as the apparatus is improved.
  • the impeller 51 according to the second embodiment has a configuration in which the annular protrusion 51a covers the circumferential surfaces of the magnet 31 and the yoke 32 on the inner diameter side, but may have a configuration in which the yoke 32 is not used.
  • FIG. 5 shows an example in which the modified impeller 51 is applied.
  • FIG. 5A shows an example in which a flat surface 51b is formed in the magnet direction without providing the annular protrusion 51a on the impeller 51, and the end surface of the magnet 31 is bonded with an adhesive or the like.
  • FIG. 5B shows an annular protrusion 51c in which the axial width of the annular protrusion 51a of the impeller 51 is equal to the axial width of the magnet 31, and the magnet 31 is fitted on the inner diameter side and bonded with an adhesive or the like. It is a structural example.
  • the magnet 31 has a sufficient strength because the peripheral surface is supported by the annular protrusion 51a. Since the yoke 32 is not used, it contributes to reduction in axial size and weight of the rotor 3.
  • the magnet 31 used in such a modification is polar anisotropic magnetization in which N-pole magnetic flux is concentrated in the axial direction. Since a bonded magnet can be relatively freely oriented, such polar anisotropic magnetization is possible. By having such a magnetic flux direction, there is no leakage of magnetic flux in the direction opposite to the N pole, so that it is not necessary to provide the yoke 32. Use of a bonded magnet is also preferable from the viewpoint of rust prevention.
  • Embodiment 3 to which the present invention is applied will be described.
  • the third embodiment is another configuration example when applied to the electric pump device 10 as a power transmission device.
  • the main difference from the electric pump device of the second embodiment is that the stator 2 and the rotor 3 are arranged in the internal space of the stator case 5 and the load side case 6, but the partition wall that divides both is a load side case 6, instead of the flat portion 6 a, the inner stator case 60 is a member independent of the stator case 5 and the load side case 6.
  • a thrust bearing 65 is applied as a bearing that rotatably supports the rotor 3.
  • FIG. 7 shows a sectional view in the axial direction of the electric pump device according to the third embodiment.
  • the electric pump device 11 includes a stator case 5 and a load side casing 6.
  • the stator case 5 is open at one end in the axial direction
  • the load-side case 6 is also open at one end in the axial direction so that both open end sections having the same inner and outer diameters are joined to each other.
  • the stator case 5 and the load-side case 6 may not be divided.
  • the inner stator case 60 has an outer peripheral surface that is approximately the same diameter as or slightly smaller than the inner diameter of the stator case 5, and has a circular cylindrical shape that opens only on the stator 2 side.
  • the bottom surface of the inner stator case 60 has a concavo-convex shape along the shape of the teeth and coil portions of the stator 2 and is configured to cover the stator 2 from the axial direction along the shape.
  • An insulating material is applied between the stator 2 and the inner stator case 60 to be electrically insulated.
  • the insulating material for example, insulating paper or an insulating agent may be applied, or resin sealing may be used.
  • the opening side (the arrangement side of the stator 2) of the inner stator case 60 is fitted into the inner cylindrical portion 5a of the stator case 5.
  • the outer peripheral surface of the inner stator case 60 and the inner cylindrical portion of the stator case 5 may be configured to be fitted with no gap.
  • the stator 2 may be sandwiched and fixed between the inner cylindrical portions of the stator casing 5 by using the fitting force.
  • one race of the thrust bearing 65 is fixed to the end surface of the recess of the inner stator case 60 along the teeth and the coil shape of the stator 2, and the impeller 51 is mounted to the other race.
  • the rotor 3 is fixed.
  • the rotor 3 and the impeller 51 may have any configuration of the second embodiment (FIG. 4) and its modification (FIG. 5).
  • the end sections of the stator case 5 and the load side case 6 are screwed together.
  • the thrust bearing 65 since the thrust bearing 65 is applied, there is an effect that if the joining portion with the inner stator case 6 is secured at least for the thickness of one race, the shaft can be shortened for the other race side. .
  • Embodiment 4 to which the present invention is applied will be described.
  • the fourth embodiment is another configuration example when the power transmission device is applied to the electric pump device 11 as in the second and third embodiments.
  • the difference between the other examples and the fourth example is that there is no partition wall that partitions the storage area between the stator 2 and the rotor 3 by molding the outer surface of the stator 2 with resin.
  • the resin-mold functions as a partition wall.
  • FIG. 8 is a sectional view in the axial direction of the electric pump device according to the fourth embodiment.
  • This example is based on the configuration of the third embodiment, and has a configuration in which the stator 2 and the rotor 3 are arranged in the axial direction through the thrust bearing 65 in the inner cylindrical space of the stator case 5 and the load side case 6.
  • the outer surface of the stator 2 around which the coil is wound around the core 22 is molded with the resin 100. Further, the outer peripheral side of the coil 22 is molded with a predetermined thickness, and after molding, the outer diameter is approximately the same as or slightly smaller than the inner cylinder portion 5a of the stator case 5. This is for securing the fitting property between the stator 2 and the stator case 5 and ensuring insulation. Further, by molding the outer surface of the stator 2 with resin, the rust prevention property of the stator 2 can be secured.
  • the stator 2 is fixed by the resin-molded stator 2 being fitted into the inner cylinder portion of the stator case 5 from the axial direction.
  • the stator 5 may be positioned and arranged on the inner cylinder portion of the stator case 5 and resin molded. Further fixing of the stator 2 and the stator case 5 can be expected.
  • the rotor 3 is connected to the stator 2 via a thrust bearing 65.
  • a bearing holding member 70 is arranged between the resin-molded stator 2 and the thrust bearing 65. Yes.
  • FIG. 9 schematically shows a developed perspective view of the armature, the bearing holding member 70, the thrust bearing 65, and the rotor 3.
  • the bearing holding member 70 is made of metal, resin, or the like, and has an annular main body portion 70a that holds one race outer peripheral corner portion of the thrust bearing 65 from the axial direction and the radial direction, and a plurality of radially extending radial portions from the main body portion 70a. Extending portion 70b. If the thrust bearing 65 is disposed directly on the resin mold portion of the stator 2, the resin may be damaged by the rotational stress of the rotor 3. For this reason, the thrust bearing 65 is fixed to the stator 2 via the bearing holding member 70.
  • the main body 70a has an inner diameter that can sufficiently fix the outer peripheral angle of the race when the one race of the thrust bearing 65 is fitted.
  • the extending portion 70b has a width in the rotational direction that is smaller than the width between the stator teeth and has a length in the radial direction that covers the axial end surface side of the coil 22, and is not covered by the resin or the coil. It is arranged in contact.
  • the extending portion 70b exerts stress against a rotational load applied to the main body portion 70a.
  • stretching part 70b is arbitrary.
  • the magnet 31 side of the impeller 51 is based on a flat surface, and has an annular protrusion 51d in the axial direction that is approximately the same diameter or slightly smaller in diameter than the inner circumference of the annular magnet 31. This is for ensuring workability and securing when assembling the impeller 51 to the magnet 31.
  • the planar outer peripheral side of the impeller 51 has an annular protrusion 51c as in the second embodiment.
  • the load of the rotor 3 is not limited to the flywheel 9 and the impeller 51, and may be a fan or another application.
  • the transport body of the electric pump device 11 may not be a fluid but may be a gas or powder.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne une technique contribuant à augmenter le rendement de transmission d'énergie et à réduire la taille d'un dispositif, sans subir l'influence de l'environnement dans lequel une charge est installée. L'invention porte sur un dispositif de transmission d'énergie comprenant : une machine électrique tournante du type à entrefer axial comprenant un stator et un rotor, ledit stator comportant des bobines sur le côté du périmètre radialement extérieur de dents qui s'étendent dans la direction d'un axe de rotation et générant un flux magnétique à partir de surfaces d'extrémité des dents dans la direction de l'axe de rotation, ledit rotor comportant une pluralité d'aimants qui ont différentes polarités et sont disposés en forme d'anneau, et présentant une surface en regard des surfaces d'extrémité des dents avec un entrefer prédéterminé intercalé entre elles ; un boîtier comportant un espace pour stocker le stator et le rotor ; une paroi de séparation pour diviser en espaces discontinus la région stockant le stator et le rotor dans le boîtier ; un palier disposé sur la paroi de séparation et supportant le rotor en rotation ; et un dispositif de charge disposé sur le rotor du côté opposé au stator dans la direction axiale et tournant avec le rotor.
PCT/JP2015/071902 2015-08-03 2015-08-03 Dispositif de transmission d'énergie WO2017022044A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023013255A1 (fr) * 2021-08-05 2023-02-09 株式会社荏原製作所 Motopompe

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000278924A (ja) * 1999-03-19 2000-10-06 Nippon Densan Corp 回転機
JP2001103722A (ja) * 1999-09-29 2001-04-13 Mitsubishi Electric Corp 扁平モータとそれを用いた遠心ポンプとその遠心ポンプを製氷機用給水ポンプに用いた冷蔵庫
JP2001309628A (ja) * 2000-04-19 2001-11-02 Unisia Jecs Corp モータポンプ
JP2002095209A (ja) * 2000-09-14 2002-03-29 Mitsubishi Heavy Ind Ltd 電力貯蔵用フライホイール装置
JP2006222131A (ja) * 2005-02-08 2006-08-24 Neomax Co Ltd 永久磁石体
JP2007325329A (ja) * 2006-05-30 2007-12-13 Aisan Ind Co Ltd アキシャルギャップ型モータ及び燃料ポンプ
JP2012120249A (ja) * 2010-11-29 2012-06-21 Fujitsu General Ltd ポンプ装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000278924A (ja) * 1999-03-19 2000-10-06 Nippon Densan Corp 回転機
JP2001103722A (ja) * 1999-09-29 2001-04-13 Mitsubishi Electric Corp 扁平モータとそれを用いた遠心ポンプとその遠心ポンプを製氷機用給水ポンプに用いた冷蔵庫
JP2001309628A (ja) * 2000-04-19 2001-11-02 Unisia Jecs Corp モータポンプ
JP2002095209A (ja) * 2000-09-14 2002-03-29 Mitsubishi Heavy Ind Ltd 電力貯蔵用フライホイール装置
JP2006222131A (ja) * 2005-02-08 2006-08-24 Neomax Co Ltd 永久磁石体
JP2007325329A (ja) * 2006-05-30 2007-12-13 Aisan Ind Co Ltd アキシャルギャップ型モータ及び燃料ポンプ
JP2012120249A (ja) * 2010-11-29 2012-06-21 Fujitsu General Ltd ポンプ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023013255A1 (fr) * 2021-08-05 2023-02-09 株式会社荏原製作所 Motopompe

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