WO2012073290A1 - Moteur linéaire à flux transversal - Google Patents

Moteur linéaire à flux transversal Download PDF

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Publication number
WO2012073290A1
WO2012073290A1 PCT/JP2010/007034 JP2010007034W WO2012073290A1 WO 2012073290 A1 WO2012073290 A1 WO 2012073290A1 JP 2010007034 W JP2010007034 W JP 2010007034W WO 2012073290 A1 WO2012073290 A1 WO 2012073290A1
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WO
WIPO (PCT)
Prior art keywords
stator
teeth
rotor
transverse flux
flux machine
Prior art date
Application number
PCT/JP2010/007034
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English (en)
Inventor
Shouichi Tanaka
Original Assignee
Three Eye Co., Ltd.
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 Three Eye Co., Ltd. filed Critical Three Eye Co., Ltd.
Priority to PCT/JP2010/007034 priority Critical patent/WO2012073290A1/fr
Priority to PCT/JP2011/000362 priority patent/WO2012073387A1/fr
Priority to PCT/JP2011/000669 priority patent/WO2012073388A1/fr
Publication of WO2012073290A1 publication Critical patent/WO2012073290A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/10—Synchronous motors for multi-phase current
    • H02K19/103—Motors having windings on the stator and a variable reluctance soft-iron rotor without windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/12—Transversal flux machines

Definitions

  • the present invention relates to a transverse flux machine (TFM) with excellent hardness and excellent magnetic chars eristic.
  • the TFM proposed in '80s includes the radial gap type, the axial gap type and the linear type. Furthermore, one type of the TFM called single-gap TFM has one surface of a rotor of the TFM facing one stator. The other type of the TFM called dual-gap TFM has both surfaces of the rotor of the TFM facing two stators. Skilled motor engineers understand easily that the above TFMs of the above many types are essentially same to each other in spite of different configurations.
  • a main feature of the TFM is on a stator winding, which extends toward the moving direction of the rotor or a mover of the TFM.
  • the TFM having the rotor with permanent magnets is called the TFPM, which is the transverse flux permanent magnet machine.
  • the TFM having the rotor with rotor salient without the permanent magnets is called the TFRM, which is the transverse flux reluctance machine. It is well known that the TFRM includes the TFSRM, which is the transverse flux switched reluctance machine.
  • the TFM is essentially a single phase motor, because the TFM is driven by a single phase current supplied to a single stator winding. It is easy to construct a three-phase TFM by means of arranging three of the single-phase TFMs, which are adjacent to each other.
  • One type of the TFM having a ring-shaped stator is called the ring-shaped TFM.
  • the other type of the TFM having an arc-shaped stator is called the arc-shaped TFM.
  • a plurality of the arc-shaped TFMs can be arranged to the circumferential direction in turn in order to construct multi-phase TFM.
  • the stator of the TFM has a plurality of U-shaped stator cores having two stator teeth projecting toward the rotor.
  • the two stator teeth are disposed across the ring-shaped or arc-shaped stator winding.
  • the two stator teeth can be disposed at an equal circumferential position. It is called the aligned TFM.
  • the two stator teeth can be disposed at different circumferential positions respectively. It is called the unaligned TFM.
  • the U-shaped stator core of the independent-yoke type has a yoke portion connecting the two stator teeth.
  • the TFM of the independent-yoke type has a plurality of U-shaped stator cores having independent magnetic flux passage each.
  • the TFM of the common-yoke type has a ring-shaped or an arc-shaped common yoke, from which every stator teeth projects toward the rotor.
  • FIG. 1 schematically shows an axial cross-section of the TFM with SMC cores.
  • Figure 2 shows a side view of the SMC-TFM of the independent-yoke type.
  • a U-shaped stator core 2 of a stator 1 has two stator teeth 21 and a yoke portion 22.
  • a ring-shaped stator winding 3 of the stator 1 is accommodated in a ring-shaped slot 23 formed between the two stator teeth 21.
  • the stator 1 surrounds a rotor 4.
  • Each of stator teeth 21 vibrates in the radial direction RA and the circumferential direction PH strongly by the magnetic force between stator teeth 21 and the rotor 4.
  • FIG 3 shows a perspective view of a linear TFM having a stator 1 with a common yoke 24.
  • Figure 4 shows an elevation view of the linear TFM shown in Figure 3.
  • Stator teeth 21 project from the common yoke 23 toward a mover 4.
  • the mover 4 has a plurality of permanent magnet bars 5 fixed to a soft ferromagnetic core 6 of the mover 4.
  • Each of stator salient 21 vibrates strongly in the longitudinal direction and the moving direction by the magnetic force between stator salient 21 and the rotor 4.
  • the letter 'Fr' shows the force component to the longitudinal direction
  • the letter 'Fc' shows the force component to the moving direction.
  • United Patent No. 7,339,290 proposes one example of the linear SMC-TFM.
  • United Patent No. 4,973,868 proposes the U-shaped stator core of the TFM.
  • the U-shaped stator core is produced with a wound steel core, so-called the cut core.
  • the U-shaped cut core with two stator teeth needs complicated production process. Consequently, the prior TFM is not used broadly yet, because of the poor hardness and the poor magnetic characteristic of the SMC, and the complicated production process of the cut core.
  • a known motor turbo-charger has a motor-generator disposed between a radial compressor and a radial turbine.
  • the motor turbo-charger has serious problems, which are vibration of an axis and heat radiation of the turbine.
  • the vibration of the axis is increased, when a length of the axis is increased.
  • the vibration of the axis is increased by adding the motor-generator.
  • the heat radiation of the turbine increases the temperature of a stator winding of the motor. As the result, it is not easy to supply a large current to the stator winding. It causes lack of the motor torque.
  • TFM transverse flux machine
  • a stator core (2) or a rotor core (4) is made of axially-laminated soft magnetic plates (7), such as soft iron plates, which are laminated to an axial direction (AX).
  • the soft magnetic plate (7) has two groups of stator teeth (71), two groups of diagonal portions (75) and a yoke portion (74).
  • the two groups of stator teeth (71) arranged to the circumferential direction (PH) each are disposed across a stator winding (3) extending to a circumferential direction (PH).
  • the one group of the stator teeth (71) is joined to the yoke portion (74) via the one group of the diagonal portions (75).
  • the other one group of the stator teeth (71) is joined to the yoke portion (74) via the other one group of the diagonal portions (75).
  • the yoke portion (74) extends to the circumferential direction (PH).
  • the one group of the teeth (71) and the other one group of the teeth (71) are arranged alternately in the circumferential direction (PH).
  • each soft magnetic plate (7) can be formed by means of press process, for example by means of pressing of a flat soft iron sheet.
  • the TFM can have stronger hardness and better magnetic characteristic than the TFM with the soft magnetic composite, the SMC.
  • a multi-phase TFM has stators (1U, 1V and 1W) having the stator cores (2U, 2V and 2W) respectively.
  • the stator cores (2U, 2V and 2W) are adjacent to each other in the axial direction (AX).
  • stator pairs (10U and 11U, 10V and 11V and 10W and 11W) of the stators are arranged to the circumferential direction (PH) in turn.
  • Two of the stators of each stator pair (10U and 11U, 10V and 11V and 10W and 11W) are adjacent to each other to the axial direction (AX).
  • Each phase winding is wound on each stator pair (10U and 11U, 10V and 11V and 10W and 11W).
  • non-magnetic spacers (88) are disposed in gaps between each two of the arc-shaped stator pairs (10U and 11U, 10V and 11V and 10W and 11W). As the result, it is possible to construct a ring-shaped stator with the excellent hardness.
  • the phase winding has a pair of end portions pulled out via the non-magnetic spacers (88). Accordingly, it becomes easy to pull out the pair of end portions of the phase winding, even though the phase winding has a large cross-section. Accordingly, it is possible to employ a coil conductor with a large cross-section as the phase winding.
  • the stator has non-magnetic spacers (8) disposed in gaps among the stator teeth (21) being adjacent to each other in the circumferential direction (PH). Accordingly, the hardness of stator is increased. One and the other one of stator teeth of the same stator core moves to opposite directions to each other by the magnetic force. However, the non-magnetic spacers (8) disposed among the stator teeth (21) reduce magnetic vibrations of the stator teeth (21) effectively.
  • the non-magnetic spacers (8) are disposed in gaps among the diagonal portions (25) being adjacent to each other in the circumferential direction (PH). Accordingly, the vibrations of the stator teeth (21) are further reduced.
  • the non-magnetic spacers (8) are disposed by means of molding resin material. The production process becomes simple.
  • the resin material includes non-organic electric-insulation powder having an excellent heat-transferring ability.
  • the transverse flux machine is disposed between a rotor (91) of a radial compressor and a rotor (92) of a radial turbine, which constitutes a motor turbo charger.
  • the motor turbo charger can have a low vibration of the rotating axis, because a length of the axis becomes short.
  • the stator winding is protected from the heat radiation of the adjacent turbine by the stator teeth (21). Accordingly, it is protected to heat the stator winding.
  • the mover (402 and 403) of the transverse flux machine is connected to both pistons of a linear type internal combustion engine respectively. The transverse flux machine drives the pistons for starting the linear type internal combustion engine, and generates an electric power supplied to a traction motor of a parallel-type hybrid vehicle. Accordingly, a hybrid vehicle with simple and compact structure with light weight can be constructed.
  • Figure 1 schematically shows an axial cross section of the TFM with SMC cores.
  • Figure 2 shows a side view of the SMC-TFM with independent-yokes.
  • Figure 3 shows a perspective view of a linear TFM having a stator core with a common stator yoke.
  • Figure 4 shows an elevation view of the linear TFM shown in Figure 3.
  • Figure 5 schematically shows an axial cross-section of a three-phase TFSRM of the first embodiment.
  • Figure 6 shows a schematic view showing the laminating process of the stator core shown in Figure 5.
  • Figure 7 is an enlarged cross-section showing the enlarged stator core shown in Figure 5.
  • Figure 8 is a partial side view of the ring-shaped stator shown in Figure 5.
  • Figure 9 is a partial circumferential development of the ring-shaped U-phase stator core shown in Figure 5.
  • Figure 10 is an axial cross-section of a rotor of a TFM turbo-charger of the second embodiment.
  • Figure 11 is an axial cross-section of a three-phase TFRM of the third embodiment.
  • Figure 12 is a schematic side view of the three-phase TFRM shown in Figure 11.
  • Figure 13 is a schematic side view showing a ring-shaped iron plate before and after bending in order forming the diagonal portions.
  • Figure 14 is a schematic cross-section showing the bending process of an iron plate.
  • Figure 15 is a schematic cross-section showing the bending process of an iron plate.
  • Figure 16 is a schematic cross-section showing the bending process of an iron plate.
  • Figure 17 is a schematic cross-section showing the bending process of an iron plate.
  • Figure 18 is a transverse cross-section showing a linear TFM.
  • Figure 19 is a schematic side view showing the linear TFM
  • the TFM of the present invention is explained hereinafter with reference to the inner-rotor-radial-gap-type. Every skilled engineer can imagine the axial type TFM and the linear TFM with reference to embodiments explained hereinafter.
  • a TFM of the first embodiment is explained with reference to Figures 5-9.
  • Figure 5 schematically shows an axial cross-section of a three-phase TFSRM of the first embodiment.
  • a stator 1 of the three-phase TFSRM has a ring-shaped U-phase stator 1U, a ring-shaped V-phase stator 1V and a ring-shaped W-phase stator 1W, which are adjacent to each other in the axial direction AX.
  • the U-phase stator 1U has a ring-shaped stator core 2U and a ring-shaped U-phase winding 3U.
  • the V-phase stator 1V has a ring-shaped stator core 2V and a ring-shaped V-phase winding 3V.
  • the W-phase stator 1W has a ring-shaped stator core 2W and a ring-shaped W-phase winding 3W.
  • Each of the stator cores 2U, 2V and 2W consists of two groups of stator teeth 21, a ring-shaped yoke portion 24 and two groups of diagonal portions 25.
  • Each of stator teeth 21 projects radially inward in the radial direction RA.
  • Each yoke portion 24 extends to the circumferential direction PH.
  • Each of the one group of stator teeth 21 is arranged to the circumferential direction PH.
  • Each of the other one group of stator teeth 21 is arranged to the circumferential direction PH.
  • Each of the one group of the diagonal portions 25 is arranged to the circumferential direction PH.
  • Each of the other one group of the diagonal portions 25 is arranged to the circumferential direction PH.
  • the one group of the diagonal portions 25 extending diagonally joins one group of stator teeth 21 and the yoke portion 24.
  • the other one group of the diagonal portions 25 extending diagonally joins the other one group of stator teeth 21 and the yoke portion 24.
  • the two groups of the stator teeth 21 of U-phase stator core 2U are adjacent to each other in the axial direction AX across the ring-shaped U-phase winding 3U.
  • the two groups of the stator teeth 21 of V-phase stator core 2V are adjacent to each other in the axial direction AX across the ring-shaped V-phase winding 3V.
  • the two groups of the stator teeth 21 of W-phase stator core 2W are adjacent to each other in the axial direction AX across the ring-shaped W-phase winding 3W.
  • a rotor 4 of the three-phase TFSRM has a ring-shaped U-phase rotor core 4U, a ring-shaped V-phase rotor core 4V and a ring-shaped W-phase rotor core 4W, which are adjacent to each other in the axial direction AX.
  • Each of the rotor cores 4U, 4V and 4W consists of two groups of rotor teeth 41, a ring-shaped yoke portion 44 and two groups of diagonal portions 45. Two groups of rotor teeth 41 project radially outward in the radial direction RA.
  • Each yoke portion 44 extends to the circumferential direction PH.
  • Two groups of rotor teeth 41 of U-phase rotor core 4U are adjacent to each other in the axial direction AX across the ring-shaped non-magnetic spacer 6.
  • Two groups of rotor teeth 41 of V-phase rotor core 4V are adjacent to each other in the axial direction AX across the ring-shaped non-magnetic spacer 6.
  • Two groups of rotor teeth 41 of W-phase rotor core 4W are adjacent to each other in the axial direction AX across the ring-shaped non-magnetic spacer 6.
  • Each rotor teeth 45 faces each stator teeth 21 respectively across a ring-shaped electro-magnetic gap 'g'.
  • Each of rotor teeth 41 is arranged in the circumferential direction PH.
  • Each of stator cores 2U, 2V and 2W and rotor cores 4U, 4V and 4W consists of a plurality of ring-shaped soft steel plates 7 laminated to the axial direction AX as shown in Figure 6.
  • Figure 6 shows two laminated steel plates 7 and one steel plates 7 being laminating axially.
  • Each of steel plates 7 consists of two groups of teeth 71, a ring-shaped yoke portion 74 and two groups of diagonal portions 75.
  • Each teeth 71 extending to the circumferential direction projects radially inward.
  • Each yoke portion 74 extends to the circumferential direction.
  • One group of the two diagonal portions 75 extending diagonally joins one group of teeth 71 and the yoke portion 74.
  • FIG. 7 is an enlarged cross-section, which schematically shows the stator core 2U. It is considered that each ring-shaped gap 74g is formed between each pair of yoke portions 74 being adjacent in the axial direction AX to each other. Similarly, each teeth-shaped gap 71g is formed between each pair of teeth 71 being adjacent in the axial direction AX to each other. The gaps 74g and 71g can be buried with resin material including soft iron powder. Yoke portions 74 and teeth 71 can be bended in order to reduce the axial vibration of yoke portions 74 and teeth 71.
  • Figure 8 is a partial side view of the stator 1.
  • Figure 9 partially shows a circumferential development of the ring-shaped U-phase stator core 2U.
  • Odd stator teeth 21 are arranged to the circumferential direction PH.
  • Two of odd teeth 21 are adjacent to each other across one non-magnetic spacer 8.
  • Odd diagonal portions 25 are arranged to the circumferential direction PH.
  • Two of odd teeth 21 are adjacent to each other across one non-magnetic spacer 8.
  • Even stator teeth 21 are arranged to the circumferential direction PH.
  • Two of the even teeth 21 are adjacent to each other across one non-magnetic spacer 8.
  • Even diagonal portions 25 are arranged to the circumferential direction PH.
  • Two of the even teeth 21 are adjacent to each other across one non-magnetic spacer 8 produced by means of resin-molding.
  • odd stator teeth 21 and odd diagonal portions 25 are illustrated, but even stator teeth 21 and even diagonal portions 25 are hidden by non-magnetic spacers 8 disposed between the odd stator teeth 21 and odd diagonal portions 25.
  • the molded non-magnetic spacers 8 are formed by molding resin material including non-organic insulation powder. Odd diagonal portion 25 and even diagonal portion 25 are arranged alternately in the circumferential direction PH.
  • FIG. 10 is an axial cross-section of a rotor of a TFM turbo-charger 9.
  • the TFM turbo-charger 9 has a rotor 91 of a radial compressor and a rotor 92 of a radial turbine.
  • the rotor 91 has blade wings 91A.
  • the rotor 92 has blade wings 92A.
  • Two rotors 91 and 92 are fixed to an axis 93.
  • a rotor 4 of a TFM 10 is fixed at an intermediate portion of the axis 93.
  • the TFM 10 is arranged between rotors 91 and 92.
  • a stator 1 of TFM 10 surrounds the rotor 4.
  • the turbo-charger having the TFM disposed between the radial compressor and the radial turbine shown in Figure 10 has important benefits. Firstly, a stator winding 3 of TFM 10 is enclosed in a ring-shaped stator core 2 of TFM 10. Accordingly, the stator winding 3 is protected from heat radiation of rotor 92 of the turbine, which is extremely hot. Furthermore, the non-magnetic spacer 8 shown in Figure 8 shields the heat radiated by turbine rotor 92. Consequently, stator winding 3 can avoid super-heating.
  • the TFM 10 can have a short axial length in comparison with it of the conventional motor having the concentrated winding or the distributed winding. Because, the conventional radial-gap-type motor has a pair of coil end portions of the stator winding, which projects to the axial direction AX. As the result, vibration of the axis 93 is reduced largely, because the axis 93 can become short.
  • FIG. 11 is an axial cross-section of a three-phase TFRM (transverse flux reluctance motor) of the third embodiment.
  • Figure 12 schematically shows a side view of a three-phase TFRM shown in Figure 11.
  • the three-phase TFRM has two pairs of single-phase U-phase TFRMs 10U and 11U, two pairs of single-phase V-phase TFRMs 10V and 11V and two pairs of single-phase W-phase TFRMs 10W and 11W, which are arranged in turn to the circumferential direction of the rotor 4.
  • two TFRMs 10U and 11U are adjacent to each other in the axial direction AX.
  • TFRMs 10V and 11V are adjacent to each other in the axial direction AX.
  • Two TFRMs 10W and 11W are adjacent to each other in the axial direction AX.
  • Each of six non-magnetic spacers 88 is disposed between two pairs of the two TFRMs in the circumferential direction.
  • Each of TFRMs 10U, 11U, 10V, 11V, 10W and 11W has arc-shape as shown in Figure 12.
  • a rotor 4 accommodated in the ring-shaped three-phase TFRM has a SMC (soft magnetic composite) ring 49 and a non-magnetic disk 48 press-fixed on a rotating axis 93.
  • the SMC ring 49 has salient projecting radially outward.
  • a U-phase winding consists of a going-half portion 30U and a coming-half portion 31U.
  • One end of a conductor line of the going-half portion 30U is joined to one end of a conductor line of the coming-half portion 31U.
  • the U-phase winding consisting of going-half portion 30U and coming-half portion 31U is a concentrated winding wound on the stator teeth 21 of TFRMs 10U and 11U. Both ends U+ and U- of the U-phase winding are pulled out from non-magnetic spacers 88.
  • a V-phase winding consisting of going-half portion 30V and coming-half portion 31V is a concentrated winding wound on the stator teeth 21 of TFRMs 10V and 11V. Both ends V+ and V- of the V-phase winding are pulled out from non-magnetic spacers 88.
  • a W-phase winding consisting of going-half portion 30W and coming-half portion 31W is a concentrated winding wound on the stator teeth 21 of TFRMs 10W and 11W. Both ends W+ and W- of the W-phase winding are pulled out from non-magnetic spacers 88.
  • the three-phase TFRM shown in Figures 12 has a short width in the axial direction AX.
  • Figure 13 is a schematic side view showing a ring-shaped iron plate 100 before and after bending in order forming the diagonal portions 25.
  • the ring-shaped iron plate 100 is made by cutting and pressing a flat iron plate.
  • the ring-shaped iron plate 100 has many cutting lines 101 extending to the radial direction.
  • An outer peripheral portion 102 of ring-shaped iron plate 100 does not have a plurality of cutting lines 101, because the outer peripheral portion 102 becomes the ring-shaped yoke portion 24.
  • An inner portion of ring-shaped iron plate 100 is divided to odd segments 103A and even segments 103B.
  • odd segments 103A are bent to the axial direction.
  • the diagonal portions 25 are formed on the odd segments 103A, and boundary line 200 between diagonal portions 25 and stator teeth 21.
  • the diagonal portions 25 are formed on the even segments 103B.
  • Boundary lines 200 are formed between diagonal portions 25 and stator teeth 21.
  • Stator teeth 21 of odd segments 103A are apart from even segments 103B in the axial direction.
  • ring-shaped or arc-shaped stator winding 3U is accommodated in the ring-shaped or arc-shaped gap between two groups of stator teeth 21 as shown in Figure 13.
  • FIG. 18 A linear TFM apparatus 400 of the fourth embodiment is explained with reference to Figures 18 and 19.
  • Figure 18 is a transverse cross-section of the linear TFM apparatus 400.
  • Figure 19 schematically shows a side view of the linear TFM apparatus 400 shown in Figure 18.
  • a rectangular-block-shaped housing 401 of the linear TFM apparatus 400 is made by aluminum alloy.
  • the housing 401 has two through-holes 404 and 405 accommodating linear movers 402 and 403 respectively.
  • the linear mover 402 is accommodated between two pairs of six stators of the TFMs 2, which are fixed to the housing 401.
  • the linear mover 403 is accommodated between another two pairs of six stators of the TFMs 2, which are fixed to the housing 401.
  • the linear movers 402 and 403 has a permanent magnets and a soft magnetic composites for forming a PM synchronous motors.
  • One top portion of the linear movers 402 and 403 are fixed to one head 406 connecting one piston (not shown).
  • the other one top portion of the linear movers 402 and 403 are fixed to the other one head 407 connecting one piston (not shown).
  • the coil springs 408 and 409 are wound around movers 402 and 403 for forcing elastically the heads 406 and 407. Accordingly, the TFMs drives the two pistons to one straight direction.
  • the linear TFM apparatus 400 of the fourth embodiment shown in Figure 18 and 19 is employed for a linear type internal combustion engine (a linear ICE).
  • a linear ICE a linear type internal combustion engine
  • the one head 406 shown in Figure 19 is connected to one piston sliding on an inner surface of a first cylinder of the linear ICE of both cylinder type.
  • the other head 407 shown in Figure 19 is connected to the other piston sliding on an inner surface of a second cylinder of the linear ICE of both cylinder type.
  • the linear TFM apparatus 400 drives the reciprocating pistons toward both sides of one linear direction in order to start the linear ICE. After starting the linear ICE, linear TFM apparatus 400 generates an electric power for driving a traction motor.
  • a hybrid vehicle having the above linear ICE can have very simple and compact structure with light weight, because the linear ICE does not need rotating mechanism around a crank shaft. As the result, the hybrid vehicle can have a compact drive train with light weight.
  • the above ICE does not need a conventional starter and an alternator, too.
  • the above-explained TFM having axially-laminated steel plates can be employed for the axial gap TFM, the linear TFM and the radial gap TFM of the outer rotor type, too.
  • the rotor 4 can have permanent magnets in order to construct the TFPM (transverse flux permanent motor).
  • the stator core having the ring-shape or the arc-shape is constructed with the axially-laminated steel sheets having the ring-shape or the arc-shape, which are separated from the long and flat steel sheet and bent by means of press process.
  • stator core can be constructed with a spirally-wound steel sheet, which is laminated axially by means of employing plastic deformation of a flat tape-shaped steel sheet.
  • the ring-shaped or arc-shaped yoke portion can be has convex portions projecting to the axial direction.

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  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L'invention concerne un moteur linéaire à flux transversal (TFM) ayant une dureté supérieure et une excellente caractéristique magnétique. Au moins l'un d'un noyau de stator ou d'un noyau de rotor est constitué de plaques de matériau magnétique doux stratifiées axialement, qui sont stratifiées vers une direction axiale. La plaque de matériau magnétique doux comporte deux groupes de dents de stator, deux groupes de parties diagonales et une partie de culasse. Les deux groupes de dents de stator agencés vers la direction circonférentielle sont chacun disposés à travers un enroulement de stator s'étendant vers une direction circonférentielle. Le premier groupe de dents de stator est joint à la partie de culasse via le premier groupe des parties diagonales. L'autre groupe des dents de stator est joint à la partie de culasse via l'autre groupe des parties diagonales. La partie de culasse s'étend vers la direction circonférentielle. Le premier groupe des dents et l'autre groupe des dents sont agencés de façon alternée dans la direction circonférentielle.
PCT/JP2010/007034 2010-12-02 2010-12-02 Moteur linéaire à flux transversal WO2012073290A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2010/007034 WO2012073290A1 (fr) 2010-12-02 2010-12-02 Moteur linéaire à flux transversal
PCT/JP2011/000362 WO2012073387A1 (fr) 2010-12-02 2011-01-24 Machine électrique
PCT/JP2011/000669 WO2012073388A1 (fr) 2010-12-02 2011-02-07 Machine à flux transversal

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PCT/JP2010/007034 WO2012073290A1 (fr) 2010-12-02 2010-12-02 Moteur linéaire à flux transversal

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WO2012073290A1 true WO2012073290A1 (fr) 2012-06-07

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PCT/JP2011/000362 WO2012073387A1 (fr) 2010-12-02 2011-01-24 Machine électrique
PCT/JP2011/000669 WO2012073388A1 (fr) 2010-12-02 2011-02-07 Machine à flux transversal

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DE102012222194A1 (de) * 2012-12-04 2014-06-05 Schaeffler Technologies Gmbh & Co. Kg Transversalflussmaschine und Verfahren zu deren Herstellung
DE102012222192A1 (de) * 2012-12-04 2014-06-05 Schaeffler Technologies Gmbh & Co. Kg Transversalflussmaschine und Verfahren zu deren Herstellung
US10411532B2 (en) 2013-10-27 2019-09-10 Moovee Innovations Inc. Software-defined electric motor
US10530229B2 (en) * 2015-05-15 2020-01-07 Enedym Inc. Switched reluctance machine with odd pole-phase index

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DE102013221755A1 (de) 2013-10-25 2015-04-30 Robert Bosch Gmbh Antriebssystem mit Reluktanzmaschine und Steuerverfahren für Reluktanzmaschinen
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