US3869788A - Method of making a disk or cup rotor - Google Patents

Method of making a disk or cup rotor Download PDF

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Publication number
US3869788A
US3869788A US345216A US34521673A US3869788A US 3869788 A US3869788 A US 3869788A US 345216 A US345216 A US 345216A US 34521673 A US34521673 A US 34521673A US 3869788 A US3869788 A US 3869788A
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US
United States
Prior art keywords
conductors
gap
rotor
commutator
layers
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
US345216A
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English (en)
Inventor
Dumitru Florian Lazaroiu
Sigmund Sleiher
Gheroghe Mihai Mihaiescu
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Inst Cercetare Si Proiectare T
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Inst Cercetare Si Proiectare T
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Application filed by Inst Cercetare Si Proiectare T filed Critical Inst Cercetare Si Proiectare T
Priority to US05/496,740 priority Critical patent/US3989969A/en
Priority to US05/496,739 priority patent/US3950666A/en
Application granted granted Critical
Publication of US3869788A publication Critical patent/US3869788A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/26—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y10T29/49011—Commutator or slip ring assembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y10T29/49012—Rotor

Definitions

  • mutator bar itself extending from an inner edge addi- 70740 tion, and each conductor terminating at an outer edge addition.
  • the invention relates to a method of making a lamellar conductor rotor with separate commutator. More particularly this invention concerns the manufacture of disk armature and axial air-gap direct current electric machines, and cylindrical cup rotor and radial air ga direct current electric machines.
  • stamped lamellar conductors having two layered rotors with separate commutators, whose conductors, constituting an extension of the commutator bars, alternate with conductors without any commutator bars, so that the number of commutator bars is half the number of conductors of a layer, and a section contains two turns.
  • the invention eliminates the abovementioned disadvantages, because the number of turns per section, as well as the ratio m between the number of conductors N and then number of commutator bars, K on a layer provided with a commutator is greater than two, and the commutator bars are relatively few so, they will be wider, and thus, the commutator is stronger and will not wear off quickly.
  • the disk rotor diameter is relatively small the winding which is utilized is applicable to any numberp of machine pole pairs, by choosing the ratio m N/K versus p.
  • FIG. 1 is a partial front view of a disk rotor conductor layer
  • FIG. 2 is a partial front view of a disk rotor subassem-
  • FIG. 3 is a section through a disk rotor with commutators on all layers;
  • FIG. 4 is a section through a disk rotor with commutators only on two adjoining layers
  • FIG. 5 is a section through a disk rotor with commutator only on the two extreme end layers
  • FIG. 6 is a partial view of a cut-out layer of a cylindrical cup rotor.
  • FIG. 7 is a section through a cylindrical cup rotor with commutators on all the layers.
  • the rotor with stamped lamellar conductors and commutators on all the layers is made up of an even number of identical conductive layers 1, separated by insulating layers 2 and 3,-each conductive layer containing lamellar conductors 4, and a commutator forming a conductor extension.
  • the number of turns per section, as well as the ratio between the conductors number and the commutator bars number on a layer, is greater than two.
  • a number of conductors on a layer is connected to commutator bars 5, and the rest of the conductors terminates at an intermediate level I without commutator bars.
  • the conductors from different layers are welded at modes or points at the exterior level II, at points at the interior level III, and at points at the intermediate level I.
  • the disk rotor has many commutators but the brushes ride only on one of them, which is to be found on a rotor end, and after its partial wear, the rotor is reversed, the opposite commutators being then used.
  • rotor with stamped lamellar conductors and commutators only on two adjoining layers is made up of two identical conductive layers 1, as in the above mentioned case, the other conductive layers 6 having each of its conductors terminating at the intermediate level I, without commutator bars.
  • the conductors of the two layers with commutator are welded at modes or points at the interior level III, and at points at the intermediate level I.
  • Each of the other layers 6, without commutators, are welded at points at the intermediate level I.
  • the conductors of the layers are welded at points.
  • the rotor with stamped lamellar conductors and commutators only on the two extreme lateral or end layers is similar to that shown in FIG. 4, except that the two conductive layers 7 with commutators are not side by side, but on the rotor extreme sides or end faces.
  • the IV intermediate level solderings between the conductors of these two layers are placed at a smaller diameter level than the other solderings of the I intermediate level on the layers without commutators.
  • the two layer stamped lamellar conductors disk rotor or winding element is manufactured as follows:
  • an insulating layer 2 there are bonded two conductive layers, turned by relative to each other, so that the conductor terminals at the III interior and II exterior levels correspond, thus obtaining soldered conductive layers.
  • the insulating layer 2 is made up of two circular rings, one of them, 2a, between the levels V and VI, and the other, 2b, between the levels VII and VIII. The assembly thus obtained, is circularly stamped at the gap between the bodies 2a and 2b, by means of a punch 11 confined between the levels I and VIII and,
  • the disk rotor with lamellar conductors stamped in four or in an even greater number of layer is manufactured as follows:
  • the rotor is made up of 3 rotor subassemblies, manufactured in a similar way as in the case of the two-layer r tor, with the onlydifference that, at the exterior level i II, the unwelded conductors terminals on the two layers are shifted in such a way as to overlap on the corresponding conductors terminals of the other rotor subassemblies in order to weld them together.
  • solderings at the interior level III and at the intermediate level I are separately performed for each of the rotor subassemblies, before assembling the rotor by soldering the independent subassemblies with intermediate insulating layers 3.
  • the II exterior level solderings are performed after this assembling has been achieved.
  • the rotor with stamped lamellar conductors and commutators only on two adjoining conductive layers has all its conductors of the other layers without commutator bars. These conductors terminate at the intermediate level I.
  • the rotor subassembly made up of the two layers with commutator, is identical to that of FIGS. 1-3.
  • the other subassemblies have an insulating layer made up of a single circular ring 2a between the levels V and VI, and the cutting out of the conductive addition which surpasses the conductors terminals is carried out at the levels I and II.
  • each of the rotor subassemblies without commutator is longitudinally welded at the intermediate level I, and after the rotor assembling, which is performed in exactly the same manner as in FIGS. 1-3, the longitudinal solderings at the exterior level II are accomplished.
  • the rotor with stamped lamellar conductors and commutator only on the two extreme lateral conductive layers has the other intermediate layers as those in FIG. 4, all the conductors being without commutator bars, finished at the intermediate level I.
  • the rotor subassemblies without commutator are manufactured as in the FIG. 4, then they are assembled by soldering, having between them insulating layers 12, thus making up the rotor package.
  • the two conductive layers with commutators in which the empty spaces between the conductors 9 and the combetween the levels IV and X.
  • the punch has a shape which creates a detachment between the conductors without bars 4a, and the commutator bars 5.
  • the intermediate level IV at which the conductors 4 a without commutator bars finish will be below the intermediate level I of the conductors terminals on the layers without commutator.
  • the conductive addition which surpasses the exterior II and the interior levels III is cut out.
  • the conductors on the extreme lateral layers provided with commutator, are longitudinally welded at the interior level III, and transversely at the intermediate level IV. Then the conductors at the exterior level II are welded longitudinally.
  • the cup cylindrical rotor with stamped lamellar conductors is manufactured in the same manner as the disk rotor, except the fact that:
  • the stamping of the empty spaces between the conductors 9 and between commutator bars 10, for obtaining the conductive layers 1, is performed linearly, not circularly;
  • the empty spaces stamping step, performed by the same punches, is different, so that the conductive layers have various lengths, making it possible to close the cylinder during the assemblies; in this case, the conductors widths do not differ much on the various layers;
  • each conductive layer 1 provided with commutator bars is soldered on an insulating layer 14 made up of two insulating bands, one of them 14a, between the levels V and VI, and the other 14b, between the levels VII and VIII;
  • the stamping by means of a punch enclosed between the levels I and VIII, performed in order to detach the conductors 4a without commutator bars from the commutator bars 5, is made linearly, not circularly, and separately, on each of the conductive layers soldered with insulating'bands;
  • each conductive layer without commutator bars is soldered on an insulating band 14a between the levels V and VI;
  • the cutting-out, regarding the conductive layers without commutator bars, of the conductive addition which surpasses the levels I and II is made by following straight, not circular, lines and, besides that, one cuts out the edge insulating addition, parallel with the two extreme conductors, thus several cut-out layers are obtained;
  • the two-layered unwelded rotor assembly and the unwelded rotor subassemblies for the rotors with an even number of layers more than two, all of them or only two adjoining ones provided with commutator are obtained as follows: on each lateral side of a cylinder two cut-out layers are soldered by rolling, the layers having their conductors conversely oriented, and with the insulating bands situated towards the inside of the cylinder;
  • the two-layered rotor assembly and the rotor subassemblies for the rotors with an even, number of layers greater than two, all of them provided with commutators are obtained by welding the conductors at the levels lII, longitudinally, and l, transversely, and only for the two layered rotor assemblies at the II level, longitudinally;
  • the rotor assembly with an even number, of layers greater than two, all of them provided with commutator is obtained by introducing the rotor subassemblies, rolled on cylinders of different diameters, ones into the others, by their soldering with intermediate insulating layers and by welding the conductors at the II lelvel, longitudinally;
  • the rotor subassemblies for the rotors with an even, number of layers, from which only two adjoining layers are provided with commutator bars, are obtained by performing at the unwelded rotor subassemblies the conductor welds at the I level, longitudinally;
  • the assembly with an even, number of layers greater than two, from which only two layers are provided with commutator bars is obtained by introducing the rotor subassemblies, with and without commutator, rolled on different diameters cylinders, ones into the others, by their soldering with intermediate insulating layers, so that the commutator will be accessible and by welding the conductors at the ll level, longitudinally;
  • the rotor package for the rotors with an even number of layers, greater than two, from which the only two extreme layers are provided with commutator, is obtained by introducing the rotor subassemblies without commutator ones into the others and their soldering on insulating layers, rolled on different diameters cylinders;
  • the welds number at different levels of the cylindrical cup rotor for each performing version is the same with that of the disk rotors for the similar versions.
  • a method of making a rotor comprising the steps of:

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Dc Machiner (AREA)
US345216A 1972-04-28 1973-03-26 Method of making a disk or cup rotor Expired - Lifetime US3869788A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US05/496,740 US3989969A (en) 1973-03-26 1974-08-12 Rotor for motors and the like
US05/496,739 US3950666A (en) 1973-03-26 1974-08-12 Disk or cup rotor with stamped-out winding elements for a low-inertia electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO70740A RO56652A2 (da) 1972-04-28 1972-04-28

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US05/496,739 Continuation-In-Part US3950666A (en) 1973-03-26 1974-08-12 Disk or cup rotor with stamped-out winding elements for a low-inertia electric machine
US05/496,740 Continuation-In-Part US3989969A (en) 1973-03-26 1974-08-12 Rotor for motors and the like

Publications (1)

Publication Number Publication Date
US3869788A true US3869788A (en) 1975-03-11

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ID=20090617

Family Applications (1)

Application Number Title Priority Date Filing Date
US345216A Expired - Lifetime US3869788A (en) 1972-04-28 1973-03-26 Method of making a disk or cup rotor

Country Status (5)

Country Link
US (1) US3869788A (da)
JP (2) JPS5835029B2 (da)
DE (1) DE2314591C2 (da)
FR (1) FR2181877B1 (da)
RO (1) RO56652A2 (da)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979620A (en) * 1974-07-03 1976-09-07 Canadian General Electric Co. Ltd. Segmental discoidal winding structure for dynamoelectric machines
US4008410A (en) * 1974-03-13 1977-02-15 Canadian General Electric Company Limited Commutator for discoidal armature
US4021692A (en) * 1974-03-13 1977-05-03 Canadian General Electric Company Limited Peripheral commutator for discoidal armature
US4271370A (en) * 1979-09-21 1981-06-02 Litton Systems, Inc. Double air gap printed circuit rotor
US4323805A (en) * 1979-06-25 1982-04-06 Portescap Direct current micromotor
US6459179B1 (en) * 1993-12-23 2002-10-01 Cedric Lynch Electrical machines
US20080042515A1 (en) * 2006-08-17 2008-02-21 Paul Butterfield Optimized modular electrical machine using permanent magnets
US20080153373A1 (en) * 2006-12-22 2008-06-26 Walter Randall Hall Abrasion resistant fire blocking fabric
CN107332379A (zh) * 2017-08-24 2017-11-07 上海上电电机股份有限公司 一种蛙形绕组及其制造方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5769478U (da) * 1980-10-14 1982-04-26
JPS6035938U (ja) * 1983-08-18 1985-03-12 株式会社　モルテン サスペンションのストップラバ−構造
GB8531212D0 (en) * 1985-12-18 1986-01-29 Lynch C Electrical machines
DK0619638T3 (da) * 1993-04-03 1999-04-12 Knoerzer Karl Heinz Elektrisk skiverotormaskine
JP4571685B2 (ja) * 2008-12-12 2010-10-27 本田技研工業株式会社 アキシャルギャップ型回転電機のステータコイル
JP4996712B2 (ja) * 2010-04-26 2012-08-08 本田技研工業株式会社 アキシャルギャップ型回転電機のステータコイル
CN106230212B (zh) * 2016-08-22 2018-09-25 北京理工大学 一种单相多极高频铝绕组电机
JP7067403B2 (ja) * 2018-10-09 2022-05-16 株式会社Soken 鉄損測定装置及び測定制御装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3193715A (en) * 1963-02-04 1965-07-06 Cem Comp Electro Mec Electrical machine having lamellar windings and planar axial air gap
US3259768A (en) * 1963-03-22 1966-07-05 Printed Motors Inc Dynamoelectric machine and method of making armature
US3382570A (en) * 1963-06-17 1968-05-14 Dura Corp Method of manufacturing a disc armature
US3481033A (en) * 1967-02-06 1969-12-02 Photocircuits Corp Method for forming electric motor armatures
US3500095A (en) * 1967-07-10 1970-03-10 Printed Motors Inc Multilayer disc armature for dynamo electric machine
US3694907A (en) * 1969-07-10 1972-10-03 Ragonot Ets Method of making low inertia rotor for dynamo electric machines

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE57170C (de) * fritsche & Plschon in Berlin N., Am Kupfergraben 4 Radanker für Dynamomaschinen und elektrische Kraftmaschinen
US2847598A (en) * 1956-04-16 1958-08-12 Rca Corp Electron gun structure for plural beam tubes
FR1287390A (fr) * 1960-12-10 1962-03-16 Lucas Industries Ltd Machine électrodynamique
FR1321565A (fr) * 1962-02-08 1963-03-22 Cem Comp Electro Mec Perfectionnement à l'induit de machines électriques à entrefer axial plan et à bobinages lamellaires
DE1243772B (de) * 1962-02-08 1967-07-06 Cem Comp Electro Mec Kommutator fuer eine elektrische Maschine mit axialem Luftspalt
BE649344A (da) * 1963-06-17
RO54986A2 (da) * 1970-07-21 1973-04-12

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3193715A (en) * 1963-02-04 1965-07-06 Cem Comp Electro Mec Electrical machine having lamellar windings and planar axial air gap
US3259768A (en) * 1963-03-22 1966-07-05 Printed Motors Inc Dynamoelectric machine and method of making armature
US3382570A (en) * 1963-06-17 1968-05-14 Dura Corp Method of manufacturing a disc armature
US3481033A (en) * 1967-02-06 1969-12-02 Photocircuits Corp Method for forming electric motor armatures
US3500095A (en) * 1967-07-10 1970-03-10 Printed Motors Inc Multilayer disc armature for dynamo electric machine
US3694907A (en) * 1969-07-10 1972-10-03 Ragonot Ets Method of making low inertia rotor for dynamo electric machines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008410A (en) * 1974-03-13 1977-02-15 Canadian General Electric Company Limited Commutator for discoidal armature
US4021692A (en) * 1974-03-13 1977-05-03 Canadian General Electric Company Limited Peripheral commutator for discoidal armature
US3979620A (en) * 1974-07-03 1976-09-07 Canadian General Electric Co. Ltd. Segmental discoidal winding structure for dynamoelectric machines
US4323805A (en) * 1979-06-25 1982-04-06 Portescap Direct current micromotor
US4271370A (en) * 1979-09-21 1981-06-02 Litton Systems, Inc. Double air gap printed circuit rotor
US6459179B1 (en) * 1993-12-23 2002-10-01 Cedric Lynch Electrical machines
US20080042515A1 (en) * 2006-08-17 2008-02-21 Paul Butterfield Optimized modular electrical machine using permanent magnets
US7375449B2 (en) * 2006-08-17 2008-05-20 Butterfield Paul D Optimized modular electrical machine using permanent magnets
US20080153373A1 (en) * 2006-12-22 2008-06-26 Walter Randall Hall Abrasion resistant fire blocking fabric
CN107332379A (zh) * 2017-08-24 2017-11-07 上海上电电机股份有限公司 一种蛙形绕组及其制造方法

Also Published As

Publication number Publication date
JPS5835029B2 (ja) 1983-07-30
JPS4941802A (da) 1974-04-19
FR2181877B1 (da) 1977-02-04
DE2314591C2 (de) 1984-12-20
RO56652A2 (da) 1974-07-01
DE2314591A1 (de) 1973-10-31
FR2181877A1 (da) 1973-12-07
JPS58136244A (ja) 1983-08-13

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