US3189773A - Axial airgap electric rotary device - Google Patents

Axial airgap electric rotary device Download PDF

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Publication number
US3189773A
US3189773A US93188A US9318861A US3189773A US 3189773 A US3189773 A US 3189773A US 93188 A US93188 A US 93188A US 9318861 A US9318861 A US 9318861A US 3189773 A US3189773 A US 3189773A
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US
United States
Prior art keywords
armature
annular
winding
cylindrical member
machine
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US93188A
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English (en)
Inventor
Henry-Baudot Jacques
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Printed Motors Inc
Original Assignee
Printed Motors Inc
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 Printed Motors Inc filed Critical Printed Motors Inc
Application granted granted Critical
Publication of US3189773A publication Critical patent/US3189773A/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/54—Disc armature motors or generators

Definitions

  • the present invention concerns improvements in or relating to axial airgap electric rotary machines of the kind wherein the armature includes a winding made of flat conductons intimately adhering to insulated faces of an annular carrier member over which said conductors are distributed in two sets of half-turns and from which the corn plete pattern of the winding is obtained by face-,to-face connections between the ends of the halfturn conductors.
  • One object of the invention is to provide an arrangement of such rotary machine which is specially suitable for driving a cylindrical cage-shaped member such, for
  • a wheel a pulley or a drum.
  • the said cage member is actually embodied in the electric rotary machine as a supporting member for the disc-shaped armature, said cage being mounted on bearings carried by sleeves supporting the inductor structure of the machine, which is mounted on a fixed shaft at the axis of the machine.
  • the armature disc member is secured within said cage by the periphery thereof and, more definitely, by the attachment to the rim of the cage of an annular portion of the armature disc which is left free of any winding part thereon for the punpose of making this attachment.
  • the said armature disc rotates within an airgap defined by a double ring of inductor poles and said double ring is made of U- shaped magnets :aifixed by means of a pair of flanged hubs secured on the fixed shaft at the axis of the machine.
  • each one of said magnets is made of a radial coaptation or fitting together of at least two elementary magnets so that each magnetic pole is made as a slotted pole along the radial direction thereof.
  • a number of guiding thrust members are provided on the stator part of the machine for hearing against opposite faces of an annular portion of the armature disc near its inner periphery, the brushes of the machine being arranged to act as part of said thrusts.
  • FIG. 1 shows an elevation View and FIG. 2, a crosssection view of an illustrative embodiment according to the invention.
  • FIG. 1 comprises two half-views in crosssection of said elevation, the right-hand one according to line a and the left-hand one according to line b of FIG. 2; and said FIG. 2 also comprises two half-views, the right-hand one according to line 0 and the left-hand view according to line a of FIG. 1.
  • the armature disc is fixed and attached by the outer periphery of its insulating carrier 1, over which is formed the double-face winding 2 proper, to a ring 3 provided in the inner wall of a rim 4 of a wheel, pulley or drum. Said attachment is for instance made by bolts or screws such as shown at 5.
  • an additional ring may be attached to said bars for the attachment of the edge of the armature disc.
  • the rim 4 is ice attached to two circular end plates 6 and 7 each having a central opening.
  • Said plates are journalled around a fixed shaft 12 by means of bearings 10 and 11 applied on the end sleeves of two flanged hubs 8 and 9 arranged around said shaft and spaced apart by the magnets 13 which they embrace. Rings 14 and 15 threaded on the ends of hubs 8 and 9 clamp the bearings 10 and 11 in place. Once the assembly is effected, pins may be used for attaching the flanged hub 8 and 9 to the shaft.
  • the hubs 8 and 9 are provided with radial flanges 16 and 17 preferably having depressed sector shaped portions in their radial faces for guiding the U-shaped magnets; Said magnets must be introduced through the central aperture of the armature disc (after said disc has been attached to the rim, one of the hubs, 8 for instance and one of the plates, 6 for instance, having been assembled I but not the other members of the above-defined assembly).
  • each pair of poles is made of two U-shaped magnets so machined so as to coacting or fit together within the sector-shaped depressions formed in the radial bases or flanges 16 and 17,
  • each magnet 13 as shown in FIG. 1 is made of two coactating magnets 13 and 13
  • the pattern on the other face of the winding disc is similar to the shown one except that, the inclined portions appear, as seen from the same face of the disc and supposing the member transparent, as oppositely inclined with respect to the shown part of the winding.
  • armature disc if of sufficiently important dimension, presents a certain risk of deforma tion during the use of the machine, guiding thrusts are further provided for bearing against the faces thereof, and in registering relation by pairs, mainly near the inner edge of the disc.
  • thrust, or guiding members which may include ball or graphite arrangements for reducing the Wear, are for instance carried by the flanges 16 and 17 and are shown at 18 and 19 on the drawing. They pass between the magnetic poles of the machine. Since at least one pair of brushes is necessary in a serieswave winding (as many pairs of brushes as magnetic poles for a mesh-type winding), such brushes may be made part of said pairs of thrusts, as shown for instance at 20 in FIG. 1 wherein a brush bearing on one face of the armature disc is opposed to a mere mechanical guiding member 18.
  • the proviison of U-shaped magnets enables an increase of efliciency due, for the one part, to the fact that the armature is inserted between a pair of pole rings, and for the other part to the fact that each such magnet may be magnetized up to saturation by inserting a magnetic sheet between the branches of the U-shaped member for such a magnetization, whereafter, said magnetic sheet is withdrawn before the magnet is inserted in machine assembly.
  • a rotary electric machine comprising, in combination, a hollow cylindrical member, means mounting said member for rotation about itscylindrical axis, a flat disctype armature mounted within said member with its plane normal to the axis of said member and having a central opening therein, an annular winding carried by said armature between its inner and outer peripheries, means attaching the outer periphery of said armature to said cylindrical member, an annular field structure located within said cylindrical member and mounted upon a fixed support co-axially with said cylindrical member, said field structure comprising two annular portions positioned on opposite sides of the winding of said armature With a small clearance between each annular portion and said armature.
  • said fixed support for said field structure comprises a shaft extending through said cylindrical member, and the mounting means for said cylindrical member includes apertured end plates secured to the ends of said-member and surrounding end portions of said shaft.
  • annular field structure included sleeve portions surrounding said shaft and extending in opposite directions towards said end plates, and bearings surrounding said leeves and supporting said end-plates for rotation about the axis of said sleeves.
  • said armature comprises a carrier dischaving an outer annular portion located beyond the outer periphery of said winding
  • the mounting means for the armature comprises means securing said outer annular portion of said carrier to said cylindrical member.
  • said field structure includes a plurality of U-shaped magnets having their yoke portions passing through the central opening of said armature and their pole portions located on opposite sides of said armature, said magnets being distributed in an annular array about the axis of said annular field structure.
  • annular field structure includes two circular plates mounted on opposite sides of the annular array of U-shaped magnets, each plate having recesses formed in a radial face thereof for receiving and holding said magnets in proper location in said array.
  • a machine according to claim 6 wherein said cylindrical member is provided with an end-plate with a central opening formed therein, and a fixed shaft extending through said opening and supporting said circular plates of said field structure.
  • each magnet forming opposite poles on opposite sides of said armature is divided into two separate but contacting portions along a radial plane passing through the axis of said annular field structure.
  • thrust elements comprises brush elements engaging the winding on said armature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Motor Or Generator Frames (AREA)
US93188A 1960-03-10 1961-03-03 Axial airgap electric rotary device Expired - Lifetime US3189773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR821154A FR1259057A (fr) 1960-03-10 1960-03-10 Machine électrique tournante perfectionnée

Publications (1)

Publication Number Publication Date
US3189773A true US3189773A (en) 1965-06-15

Family

ID=8726968

Family Applications (1)

Application Number Title Priority Date Filing Date
US93188A Expired - Lifetime US3189773A (en) 1960-03-10 1961-03-03 Axial airgap electric rotary device

Country Status (4)

Country Link
US (1) US3189773A (fr)
CH (1) CH369192A (fr)
FR (1) FR1259057A (fr)
GB (1) GB960275A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480815A (en) * 1965-12-27 1969-11-25 Dura Corp Motor with multiplex wave wound disc armature
US4484097A (en) * 1982-06-08 1984-11-20 Nippondenso Co., Ltd. Flat coil for an electric machine
US5982074A (en) * 1996-12-11 1999-11-09 Advanced Technologies Int., Ltd. Axial field motor/generator
US20090195106A1 (en) * 2008-01-31 2009-08-06 Honda Motor Co., Ltd Coil assembly for electrical rotating machine, stator for electrical rotating machine, and electrical rotating machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245479B (de) * 1962-09-11 1967-07-27 Electronique & Automatisme Sa Elektrische Axialluftspaltmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430843A (en) * 1944-04-08 1947-11-11 Defiance Machine Works Inc Machine tool spindle
US2624856A (en) * 1949-05-03 1953-01-06 Younger Alexander Reginald Electric motor for sewing machines
US2857534A (en) * 1954-07-06 1958-10-21 Sperry Rand Corp Combination electric motor and gyroscopic structures
US2970238A (en) * 1959-02-12 1961-01-31 Printed Motors Inc Printed circuit armature
US3096455A (en) * 1962-03-08 1963-07-02 Basic Motor Developments Inc Printed disc electrical machinery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430843A (en) * 1944-04-08 1947-11-11 Defiance Machine Works Inc Machine tool spindle
US2624856A (en) * 1949-05-03 1953-01-06 Younger Alexander Reginald Electric motor for sewing machines
US2857534A (en) * 1954-07-06 1958-10-21 Sperry Rand Corp Combination electric motor and gyroscopic structures
US2970238A (en) * 1959-02-12 1961-01-31 Printed Motors Inc Printed circuit armature
US3096455A (en) * 1962-03-08 1963-07-02 Basic Motor Developments Inc Printed disc electrical machinery

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480815A (en) * 1965-12-27 1969-11-25 Dura Corp Motor with multiplex wave wound disc armature
US4484097A (en) * 1982-06-08 1984-11-20 Nippondenso Co., Ltd. Flat coil for an electric machine
US5982074A (en) * 1996-12-11 1999-11-09 Advanced Technologies Int., Ltd. Axial field motor/generator
US20090195106A1 (en) * 2008-01-31 2009-08-06 Honda Motor Co., Ltd Coil assembly for electrical rotating machine, stator for electrical rotating machine, and electrical rotating machine
US8115361B2 (en) * 2008-01-31 2012-02-14 Honda Motor Co., Ltd. Coil assembly for electrical rotating machine, stator for electrical rotating machine, and electrical rotating machine

Also Published As

Publication number Publication date
FR1259057A (fr) 1961-04-21
CH369192A (fr) 1963-05-15
GB960275A (en) 1964-06-10

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