EP0838102B1 - Verfahren zur herstellung eines plankommutators - Google Patents
Verfahren zur herstellung eines plankommutators Download PDFInfo
- Publication number
- EP0838102B1 EP0838102B1 EP96922878A EP96922878A EP0838102B1 EP 0838102 B1 EP0838102 B1 EP 0838102B1 EP 96922878 A EP96922878 A EP 96922878A EP 96922878 A EP96922878 A EP 96922878A EP 0838102 B1 EP0838102 B1 EP 0838102B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- segment
- annular disc
- carrying portions
- grooves
- commutator
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/06—Manufacture of commutators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/04—Commutators
- H01R39/06—Commutators other than with external cylindrical contact surface, e.g. flat commutators
-
- 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
Definitions
- the invention relates to a method for producing a flat commutator, the has the features of the preamble of claim 1.
- a commutator For example, if a commutator is used in an environment that is aggressive to copper in methanol-containing fuel for motor vehicles, it is It is customary to provide carbon as the material for the commutator segments. This However, carbon segments must be supported by copper segment support parts with the winding ends of the rotor winding without difficulty to be able to connect the segments.
- a method for producing a flat carbon commutator is known (DE 40 28 420 A1), which results in a commutator in which all areas of the Carrier body made of copper with the exception of the connecting hooks are completely covered by the carbon segments and the molding compound. Therefore This commutator meets the highest demands. However, its manufacture is relative expensive.
- a known method of the aforementioned is significantly less expensive Type (US 5,255,426), in which after the molding of the hub on the carrier body the washer made of carbon is soldered onto the segment supporting parts and then through both the washer and the support body Separating cuts is segmented.
- the disadvantage of this commutator is that the cut surfaces of the support body, that is, the air gaps delimiting Side surfaces of the segment supporting parts made of copper are exposed.
- US 4,358,319 shows a method for producing a commutator a sintered material, whereby already during the sintering process Carrier body in the mold used on one side of the carrier body Grooves are formed, and then the support body on the Grooves opposite side is removed so far that the segments are electrically isolated by the exposed grooves.
- the desired electrical properties and the required mechanical resistance the commutator is made by adding carbon powder achieved to the metallic sintered material.
- the invention is therefore based on the object of a method for the production a commutator of the type in question, which is a commutator delivers that is free from this disadvantage, and yet inexpensive can be carried out.
- This task is solved by a method with the characteristics of Claim 1.
- a further development of the method with the features of claim 8 is used to manufacture an electric motor.
- the separating cuts by means of which the washer is segmented, only to cut the latter. Since also the material parts of the molding compound which are provided in the carrier body Fill in the grooves, have a width that is greater than that of the segmentation the air gap formed, these air gaps close to the Pressing compound between the segment support parts, so that the latter through the separating cuts not be exposed.
- the thickness is reduced by a turning off.
- the boundary surface is expediently formed the central bore covering material part of the molding compound one over the Contact surface for the washer protruding centering bush for the washer molded, which helps reduce manufacturing costs.
- a flat copper strip or the like is used to produce a supporting body punched out a circuit board, which has the shape of a circular disk, from their outer edge at a distance from each other and evenly over the Radially distributed tongues 1 protrude radially.
- the number of tongues is selected equal to the number of segments of the flat commutator to be produced.
- In the circular, central opening of the circular washer protrude radially
- Each one of the tongues 1 and one of the fingers 2 is one of the circular disk assigned to form segment carrier parts 3, in such a way that the Levels of symmetry of the tongue 1 and the finger 2 in the plane of symmetry of Segment 3 lie.
- the later a hub 4 is molded from molding compound, grooves 3 ', in the embodiment by extrusion, embossed in the radial direction from extend the inner to the outer edge of the circular disc and in the finished Commutator separate the segment support parts.
- the depth of the Grooves 3 ' is selected so that the webs 3 "forming the groove base are as possible are thin, but initially the segment support parts 3 still in the by Hold the ring disc at a certain level.
- the tongues 1 are formed with the Wall elements of a cylindrical bushing by 90 ° compared to that with it one-piece segment support part 3 bent. Also be Hook elements 5, initially from the free end of each tongue 1 in the radial center Stick out in the opposite direction by more than 90 ° bent so that, as shown in Fig. 1, one each at the finished commutator Form a hook for the connection of the rotor winding.
- the fingers 2 are also more than 90 °, but in the same direction like the tongues 1 bent to form anchoring elements. Finally are still, as Fig. 1 also shows, from the inside of each bent Fingers 2 anchoring elements 6 split off, with the tongue 1 encloses an acute angle.
- the hub 4 made of molding compound.
- the hub 4 has a stepped hub bore 7 in the embodiment, which in the area of Segment support parts 3 has their smallest diameter, which, as shown in FIG. 1, is significantly smaller than the diameter of the boundary surface 8 of the central one Opening of the carrier body.
- the boundary surface 8 is therefore complete covered by the molding compound which forms the hub 4.
- the hub 4 extends in the axial direction over that of the boundary surface 8 defined ring zone.
- Fig. 2 also shows that the Hub 4 forming molding compound with the grooves between the segment support parts 3 one piece of material 13 completely fills.
- the support body is on the side facing away from the hub 4 on a Turned lathe until the webs 3 "between the segment support parts 3 completely removed and the molding compound filling the grooves to the machined area 9 is completely free.
- a centering bushing 10 is formed, which over the machined surface 9 in protrudes in the axial direction and has an outer diameter that is slight is smaller than the inner diameter of the boundary surface 8.
- the ring disk is cut into the commutator segments by radial cuts 11 divided.
- the width of these cuts is through which the air gaps 12 are formed between the commutator segments 11, much smaller than the width of the material parts 13 of the molding compound, which the initially existing grooves of the supporting body and then have been exposed when the support body was twisted off.
- Fig. 2 further shows that the separating cuts are aligned with the center of the material parts 13 and in penetrate them slightly.
- the Commutator After the commutator is fixed on the shaft of a motor and the Rotor winding with the hook elements 5 mechanically fixed and electrical has been connected, preferably by welding, the Commutator is embedded on its circumference in a plastic, which is complete the outside of the tongues 1 and preferably an adjacent one Ring zone of the commutator segments 11 and the hook elements 5 covers.
- the segment support parts 3 including the hook elements 5 are therefore in front protected against the entry of aggressive substances, which is why the commutator, for example can be used for the drive motor of a fuel pump where the commutator comes into contact with the fuel, this also contains methanol.
- the machined surface 9 of the carrier body can have a Silver layer 16 are covered, for example by electroplating. If then also the solder layer 17 consists of a silver solder, it can also in the air gaps 12 no longer come into contact with the one surrounding the commutator Medium come with copper, as can be seen particularly clearly in FIG. 4 leaves.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Current Collectors (AREA)
- Manufacture Of Motors, Generators (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Manufacture Of Switches (AREA)
Description
- Fig. 1
- einen Längsschnitt eines ersten Ausführungsbeispiels,
- Fig. 2
- eine unvollständig dargestellte Draufsicht auf die Mantelfläche des ersten Ausführungsbeispiels in Richtung des Pfeiles X der Fig. 1,
- Fig. 3
- einen Längsschnitt eines zweiten Ausführungsbeispiels mit stark vergrößert dargestellten Metallschichten im Bereich der Verbindung zwischen den Kohlesegmenten und den Segmenttragteilen,
- Fig. 4
- eine unvollständig dargestellte Draufsicht auf die Mantelfläche des zweiten Ausführungsbeispiels in Richtung des Pfeiles X,
- Fig. 5
- eine gegenüber den Fig. 1 bis 4 in verkleinertem Maßstab und nur zur Hälfte dargestellte Draufsicht auf den Tragkörper,
- Fig. 6
- einen Schnitt nach der Linie VI - VI der Fig. 5,
- Fig. 7
- eine im Maßstab der Fig. 5 dargestellte Draufsicht auf die Stirnseite des Tragkörpers nach dem Entfernen der Stege zwischen den Segmenttragteilen.
Claims (8)
- Verfahren zur Herstellung eine Plankommutators, bei dem ein metallischer, Segmenttragteile (3) bildender Trägerkörperdurch Anformen mit einer Nabe (4) aus Preßmasse unter Bildung einer vollständigen Abdeckung der zylindrischen Begrenzungsfläche einer zentralen Bohrung (7) des Trägerkörpers versehen wird,mit den Segmenttragteilen (3) elektrisch leitend und mechanisch fest eine Ringscheibe (11) aus Kohlenstoff verbunden wird,und danach die Ringscheibe (11) entsprechend der Segmentierung des Trägerkörpers in Segmente geteilt wird,a) Versehen des Trägerkörpers - vor dem Anformen der Nabe (4) - in dem die Anlagefläche (9) für die Ringscheibe (11) bildenden Bereich auf der der Anlageseite abgekehrten Seite mit sich in radialer Richtung vom Rand (8) der zentralen Bohrung (7) bis zum äußeren Rand erstreckenden, um jeweils den durch die Segmentierung definierten Winkel gegeneinander versetzten, gleich ausgebildeten Nuten (3'), die zu der der Anlageseite abgekehrten Seite hin offen sind und eine Tiefe haben, die kleiner ist als die Dicke des Trägerkörpers,b) Reduzieren des Trägerkörpers - vor dem Verbinden der Ringscheibe mit den Segmenttragteilen (3) - in dem die Anlagefläche (9) für die Ringscheibe (11) bildenden Bereich von der Anlageseite her in seiner Dicke so weit, bis alle Segmenttragteile (3) vollständig durch die Nuten (3') elektrisch voneinander getrennt sind und die die Nuten (3') füllende Preßmasse in der Anlagefläche (9) freiliegt, undc) Teilen der Ringscheibe (11) in die Segmente unter Bildung von sich an die Preßmasse zwischen den Segmenttragteilen (3) anschließenden Luftspalten (12), wobei die Nuten (3') breiter sind als die durch die Teilung der Ringscheibe (11) in die Segmente vorhandenen Luftspalte (12).
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Dickenreduzierung durch Abdrehen erfolgt und dabei aus der die Begrenzungsfläche (8) der zentralen Bohrung bedeckenden Materialpartie der Preßmasse eine über die Anlagefläche (9) überstehende Zentrierbuchse (10) für die Ringscheibe geformt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die mit den Segmenttragteilen (3) zu verbindende Fläche der Ringscheibe mit Silber bedampft oder zunächst mit Kupfer bedampft und dann mit einer Silberschicht (15) überzogen wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß nach dem Trennen der Segmenttragteile (3) deren Anlagefläche (9) für die Ringscheibe mit einer dünnen Schicht aus einem gegen Methanol unempfindlichen Material, vorzugsweise Silber, überzogen wird.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Ringscheibe mittels Silberlot auf die Segmenttragteile (3) aufgelötet wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß, ausgehend von einer ausgestanzten Platine mit die Segmenttragteile (3) radial nach außen verlängernden, voneinander getrennten Zungen (1), an deren freies Ende sich je ein Hakenelement (5) anschließt, diese Zungen (1) zu Wandelementen einer zylindrischen Buchse geformt werden.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß an die nach innen weisende Seite der Wandelemente wenigstens je ein nach innen abstehendes Verankerungselement (6) angeformt wird.
- Verfahren zur Herstellung eines Elektromotors, bei welchem gemäß einem der Ansprüche 6 oder 7 ein Kommutator hergestellt wird und der Kommutator auf einer Welle des Elektromotors festgelegt und eine Rotorwicklung des Motors mit den Hakenelementen (5) der Segmenttragteile (3) mechanisch fest und elektrisch leitend verbunden, vorzugsweise verschweißt, wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19525584A DE19525584A1 (de) | 1995-07-13 | 1995-07-13 | Verfahren zur Herstellung eines Plankommutators |
DE19525584 | 1995-07-13 | ||
PCT/EP1996/002706 WO1997003486A1 (de) | 1995-07-13 | 1996-06-21 | Verfahren zur herstellung eines plankommutators |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0838102A1 EP0838102A1 (de) | 1998-04-29 |
EP0838102B1 true EP0838102B1 (de) | 1999-11-24 |
Family
ID=7766760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96922878A Expired - Lifetime EP0838102B1 (de) | 1995-07-13 | 1996-06-21 | Verfahren zur herstellung eines plankommutators |
Country Status (8)
Country | Link |
---|---|
US (1) | US5996210A (de) |
EP (1) | EP0838102B1 (de) |
JP (1) | JP3369572B2 (de) |
AT (1) | ATE187021T1 (de) |
DE (2) | DE19525584A1 (de) |
DK (1) | DK0838102T3 (de) |
ES (1) | ES2142071T3 (de) |
WO (1) | WO1997003486A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6222298B1 (en) | 1997-06-08 | 2001-04-24 | Mitsuba Corporation | Carbon commutator and method for producing the same |
US6392325B2 (en) * | 1997-08-21 | 2002-05-21 | Aisan Kogyo Kabushiki Kaisha | Commutateur of improved segment joinability |
US6109893A (en) * | 1998-10-08 | 2000-08-29 | Walbro Corporation | Electric fuel pump with grooved commutator face |
JP3805912B2 (ja) * | 1998-11-13 | 2006-08-09 | トライス株式会社 | カーボン整流子 |
US6236136B1 (en) | 1999-02-26 | 2001-05-22 | Morganite Incorporated | Methods and results of manufacturing commutators |
DE19925286A1 (de) * | 1999-06-02 | 2000-12-07 | Kolektor D O O | Verfahren zur Herstellung eines Plankommutators sowie ein nach diesem Verfahren hergestellter Plankommutator |
DE19926900A1 (de) | 1999-06-12 | 2000-12-21 | Kirkwood Ind Gmbh | Verfahren zur Herstellung eines Plankommutators und nach diesem Verfahren hergestellter Kommutator |
DE19956844A1 (de) * | 1999-11-26 | 2001-06-13 | Kolektor D O O | Plankommutator, Verfahren zu seiner Herstellung sowie Leiterrohling und Kohlenstoffscheibe zur Verwendung bei seiner Herstellung |
US6784589B1 (en) * | 2000-05-25 | 2004-08-31 | Sugiyama Seisakusyo Co. Ltd. | Plane carbon commutator |
MXPA05006707A (es) | 2000-05-31 | 2005-09-08 | Kolektor Group Doo | Conmutador plano. |
DE10042512A1 (de) * | 2000-08-30 | 2002-03-28 | Bosch Gmbh Robert | Hakenkommutator |
KR100652177B1 (ko) * | 2001-02-28 | 2006-11-29 | 미쓰비시덴키 가부시키가이샤 | 회전전기의 통전기판 |
DE102004034434B4 (de) * | 2004-07-16 | 2006-08-03 | Kolektor Group D.O.O. | Verfahren zur Herstellung eines Plankommutators sowie Leiterrohling für einen Plankommutator |
US7009323B1 (en) * | 2004-12-06 | 2006-03-07 | Siemens Vdo Automotive Inc. | Robust commutator bar anchoring configuration with dove-tailed features |
DE102005028791A1 (de) * | 2005-06-16 | 2006-12-28 | Kautt & Bux Gmbh | Plankommutator und Verfahren zur Herstellung eines Plankommutators |
DE102005028789A1 (de) * | 2005-06-16 | 2006-12-28 | Kautt & Bux Gmbh | Kommutator, zugehöriger Tragkörper sowie Verfahren zur Herstellung eines Kommutators |
DE102006021696B4 (de) * | 2006-05-10 | 2014-04-24 | Kolektor Group D.O.O. | Verfahren zur Herstellung eines Rotors einer dynamoelektrischen Maschine sowie Rotor einer dynamoelektrischen Maschine |
DE102006046666A1 (de) * | 2006-09-29 | 2008-04-03 | Robert Bosch Gmbh | Plankommutator |
CN101924315B (zh) * | 2009-06-16 | 2014-09-03 | 德昌电机(深圳)有限公司 | 换向器及其制造方法 |
WO2019188168A1 (ja) * | 2018-03-28 | 2019-10-03 | トライス株式会社 | コンミュテータ及びその製造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1188533A (en) * | 1966-07-20 | 1970-04-15 | Lucas Industries Ltd | Manufacture of Face Commutators |
JPS5254102A (en) * | 1975-10-29 | 1977-05-02 | Sony Corp | Method of manufacturing commutator |
US4283841A (en) * | 1978-01-26 | 1981-08-18 | Mitsuba Electric Mfg. Co., Ltd. | Method of manufacturing a commutator |
DE3023108C2 (de) * | 1979-07-02 | 1986-04-24 | Aupac K.K., Tokio/Tokyo | Verfahren zum Herstellen eines Kommutators |
US5400496A (en) * | 1990-07-13 | 1995-03-28 | Robert Bosch Gmbh | Method of making a planar collector |
DE4028420A1 (de) * | 1990-09-07 | 1992-03-12 | Kautt & Bux Kg | Plankommutator und verfahren zu seiner herstellung |
JP2651963B2 (ja) * | 1991-07-17 | 1997-09-10 | 純一 高崎 | 回転子およびその製造方法 |
-
1995
- 1995-07-13 DE DE19525584A patent/DE19525584A1/de not_active Withdrawn
-
1996
- 1996-06-21 DK DK96922878T patent/DK0838102T3/da active
- 1996-06-21 JP JP50545197A patent/JP3369572B2/ja not_active Expired - Fee Related
- 1996-06-21 AT AT96922878T patent/ATE187021T1/de not_active IP Right Cessation
- 1996-06-21 DE DE59603727T patent/DE59603727D1/de not_active Expired - Lifetime
- 1996-06-21 ES ES96922878T patent/ES2142071T3/es not_active Expired - Lifetime
- 1996-06-21 WO PCT/EP1996/002706 patent/WO1997003486A1/de active IP Right Grant
- 1996-06-21 EP EP96922878A patent/EP0838102B1/de not_active Expired - Lifetime
-
1997
- 1997-01-30 US US08/973,989 patent/US5996210A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0838102A1 (de) | 1998-04-29 |
WO1997003486A1 (de) | 1997-01-30 |
DK0838102T3 (da) | 2000-05-15 |
DE59603727D1 (de) | 1999-12-30 |
US5996210A (en) | 1999-12-07 |
ATE187021T1 (de) | 1999-12-15 |
JP3369572B2 (ja) | 2003-01-20 |
ES2142071T3 (es) | 2000-04-01 |
JPH11508727A (ja) | 1999-07-27 |
DE19525584A1 (de) | 1997-01-16 |
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