EP1388198A1 - Multi-pole commutator motor comprising bridge conductors - Google Patents

Multi-pole commutator motor comprising bridge conductors

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Publication number
EP1388198A1
EP1388198A1 EP02708172A EP02708172A EP1388198A1 EP 1388198 A1 EP1388198 A1 EP 1388198A1 EP 02708172 A EP02708172 A EP 02708172A EP 02708172 A EP02708172 A EP 02708172A EP 1388198 A1 EP1388198 A1 EP 1388198A1
Authority
EP
European Patent Office
Prior art keywords
commutator
armature
bridge
commutator motor
motor according
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.)
Withdrawn
Application number
EP02708172A
Other languages
German (de)
French (fr)
Inventor
Gerald Kuenzel
Jörg Brandes
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1388198A1 publication Critical patent/EP1388198A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H02K3/16—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots for auxiliary purposes, e.g. damping or commutating
    • 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
    • H02K23/26—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings
    • H02K23/30—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings having lap or loop windings

Definitions

  • the invention relates to a multi-pole commutator motor with at least four stator poles and. it with these interacting armature coils.
  • the armature coils are each electrically connected to two commutator bars of a commutator for power supply.
  • the number of armature coils is greater than the number of stator poles, with armature-side electrical bridge conductors being connected in parallel to reduce the number of brushes contacting the commutator that form magnetically identically oriented armature poles.
  • Commutator motors of this type are used, for example, as pump drives for anti-lock braking systems in motor vehicles, as servo drives or as adjusting drives. Such commutator motors can also be referred to as small motors, since they usually cover a power range of up to approximately one kilowatt.
  • a typical example of such a commutator motor has, for example, four stator poles, which are preferably permanently excited, and accordingly four armature poles which interact with them and are formed by armature coils.
  • the armature coils are connected to an armature-side commutator, which is usually powered by four brushes. The brushes rub over the commutator bars of the commutator.
  • the hanging of the bridge conductors is problematic, since they have to extend transversely to the direction of rotation of the armature, because typically diametrically opposed commutator segments are connected to one another by the bridge conductors. It is also necessary to have an electrical on the shaft of the armature insulated section to support the bridge conductor.
  • commutator fins are connected in parallel by means of compensating connections in order to allow a flow of compensating currents between the commutator fins so that the brushes are not burdened by compensating currents.
  • a reduction in brushes is not provided and would lead to high commutator currents in such powerful motors, which would result in problematic current stall behavior, possibly even a round fire on the commutator.
  • the bridge conductors are guided over armature grooves, so that "hooking angles" which are favorable in terms of winding technology are possible on the grain mutator lamellae.
  • the bridge conductors extend essentially along the direction of rotation of the armature, whereas in the prior art they extend in this area transverse to the direction of rotation of the armature.
  • the winding of the armature is significantly simplified by the invention.
  • the Komutatormotor is compact, since there is no space between the commutator and armature teeth any bridge ladder to be accommodated must be provided. In any case, the provision of the bridge conductors saves brushes, so that the commutator motor according to the invention can be manufactured inexpensively.
  • the bridge conductors are preferably wound around at least two or more anchor teeth. It has proven to be advantageous to manufacture the bridge conductors from winding wire and expediently to hang them together with the armature coils on the hanging devices provided on the commutator bars for hanging the armature coils. It goes without saying that other types of connection for electrically connecting the bridge conductors to commutator bars are also possible, for example soldering, crimping or welding.
  • Bridge conductors formed from winding wire can be hastily wound directly during winding of the armature coils. Expediently, they then consist of the same winding wire as the armature coils, so that no change of material is necessary when inserting the bridge conductors.
  • the bridge conductors can in principle be formed from a single electrical conductor, for example from a single winding wire, one end of which is electrically connected to a commutator bar. This variant of the invention has proven to be advantageous in practice.
  • the bridge conductors can be formed in each case from a number of line connections, for example from two line connections.
  • the line connections that are assigned to a bridge conductor can be routed via different anchor grooves.
  • the current load of the individual line connections of a bridge conductor is thus reduced and, on the other hand, it is possible that, in an expedient embodiment of the invention, the line connections respectively assigned to a bridge conductor are arranged together with the armature coils in the armature slots in such a way that on the respective armature coils and on At least one line connection, which are arranged together in an armature groove, allows a flow of current oriented in the same direction. A field weakening of the respective armature coil is avoided by the current flow oriented in the same direction.
  • supports and / or fixations are provided for holding the bridge conductors, so that the respective bridge conductors are electrically insulated from an armature shaft penetrating the armature of the commutator motor.
  • the supports or fixations mechanically stabilize the bridge ladder.
  • the bridge conductors can advantageously also be mechanically fixed by an insulating compound, in particular by a casting compound.
  • the armature coils can in principle be applied to the armature in different winding variants.
  • a multipole loop winding has proven to be advantageous.
  • a preferred area of application for the invention is small electric motors with a power range of up to one kilowatt, which are used, for example, as a pump drive for an anti-lock braking system for motor vehicles, as a servo drive or as an adjusting drive.
  • the figure shows the development diagram of an armature 13 of a four-pole commutator motor 14.
  • the commutator motor 14 has a stator 15 with stator poles 16, 17, 18, 19.
  • the stator poles 16 to 19 can be excited electrically or permanently magnetically.
  • the armature 13 is rotatably arranged in the stator 15.
  • Coils 31 to 42 are supplied with current via brushes 20 and 21, which loop through a commutator 22.
  • the commutator 22 has commutator bars 1 to 12 which are electrically connected to the coils 31 to 42.
  • the coil 31 is connected on the one hand to the commutator bar 1 and on the other hand to the commutator bar 2, the coil 32 on one end to the commutator bar 2 and on the other hand to the commutator bar 3.
  • the further coils 33 to 42 are also connected to the commutator bars 3 to 12, 1.
  • the coils 31 to 42 each consist of a plurality of turns of a metallic conductor, for example an insulated copper wire, each of them several times around armature teeth 51 to 62 are wound and the ends of which are electrically connected to the commutator bars 1 to 12.
  • the coil 31 is wound several times around the armature teeth 51, 52 and 53 so that its turns come to lie in the armature grooves 82 and 73 arranged between the armature teeth 51, 56 and 53, 54. Furthermore, the coil 31 is electrically connected to the commutator bars 1 and 2. The further coils 32 to 42 are wound around the armature teeth 51 to 62 according to the same winding scheme.
  • the coils 31 to 42 are arranged in a loop winding on the armature 13.
  • This type of winding as many brush sets are required as the respective commutator has excitation pole pairs, in the specific case, for example, two brush sets, each with two brushes.
  • the loop winding can also be called a parallel winding, since the winding parts of the armature are connected in parallel by the brushes of brush sets which are connected in parallel in the conventional commutator motor.
  • the commutator bars 1, 7; 2, 8; 3, 9; 4, 10; 5, 11/6, 12 are connected in parallel by bridge conductors 43 to 48.
  • There- by four brushes are not required as in a conventional four-pole commutator motor, but only two brushes for contacting the commutator 22. Nevertheless, not only brushes 20 and 21, which are supplied with electrical current via feed lines 25, 26, but also brushes 23, 24 connected in parallel to brushes 20, 21 are shown in dashed lines in the figure. In fact, however, the brushes 23, 24 are not provided in the cortimutator motor 14. This is illustrated in the figure by dashed lines 27, 28 to the brushes 23, 24.
  • the other half of the armature current I ⁇ / 2 would be fed in via the commutator bar 4 in the armature position shown. However, this is not provided for the commutator motor 14. Instead, the armature current I A / 2 can flow to the commutator bar 4 via the bridge conductor 43. From there it flows through the armature coil 34, the commutator plate 5, the armature coil 35, the commutator plate 6, the armature coil 36 and the commutator plate 7, in order to be able to flow away from it via the brush 21 and the line 26.
  • the bridge conductors 43 to 48 are guided through the anchor grooves 71 to 82.
  • the same winding pattern applies to all bridge conductors 43 to 48. It is therefore sufficient to explain the winding diagram of the bridge conductor 43.
  • the bridge conductor 43 in the present case is formed by winding wire and is wound directly when the armature 13 is wound.
  • the bridge conductor 43 is electrically connected to the commutator bar 1.
  • the bridge conductor 43 is e.g. in the contact area with the commutator bars 1 and 7 in each case electrically conductive, for example by removing an otherwise existing paint insulation.
  • Other types of connection between the bridge conductors 43 to 48 and the commutator bars 1 to 12, e.g. Soldering, welding, riveting or the like are easily possible.
  • the bridge conductor 43 leads from the commutator bar 1 to the armature groove 82, and past the armature teeth 51 to 56 to the armature groove 76. From the armature groove 76, the bridge conductor 43 is guided to the commutator bar 7 and is electrically connected there.
  • the bridge conductors 43 to 48 are in any case connected to the commutator segments 1 to 12 in such a way that they run at the common connection points essentially parallel or only slightly angled to the axis of rotation 50 of the armature 13 and the commutator 22. Armature slots extend 71-82 parallel '48 in the axis of rotation 50 or at most slightly ge claimeden, the connection of the bridge conductor 43 to 48 with the commutator segments 1 to 12 of production technology very simple - each case designed by the invention, in which the bridge conductors 43rd
  • the already explained line routing of the bridge conductors 43, 46 is referred to below as 43a, 46a.
  • line connections 43b, 46b are shown, some of which are guided in different anchor grooves than the line connections 43a, 46a.
  • the line connection 43b leads from the commutator lamella 1 to the armature groove 73 past the armature teeth 54, 55, 56 to the armature groove 76 and from there to the commutator lamella 7.
  • This line routing ensures that the current flow on the bridge conductor 43b is oriented in the same direction in the armature position shown is like the current flow of the conductors of the armature coils 31, 33 and 34, 37 arranged in the armature grooves 73, 76.
  • the current flow on the bridge conductor 43b thus does not lead to a field weakening of the armature field, but even to a field strengthening.
  • bridge conductor 43 could have both line connections 43a, 43b and possibly also further line connections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)
  • Windings For Motors And Generators (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

The invention relates to a multi-pole commutator motor (14) comprising at least four stator poles (16-19) and armature windings (31-42) that co-operate with said poles and that are respectively electrically connected to two commutator bars (1-12) of a commutator (22) for supplying current. The number of said windings is greater than that of the stator poles (16-19). To reduce the number of brushes (20, 21, 23, 24) forming a contact with the commutator (22), armature windings (31-42), which form armature poles that are oriented in the same direction, are connected in parallel by means of electric bridge conductors (43-48) on the armature side. The commutator motor (14) is characterised in that the bridge conductors (43-48) are guided at least partially via armature slots (71-82).

Description

Mehrpoliger Kommutatormotor mit BrückenleiternMulti-pole commutator motor with bridge conductors
STAND DER TECHNIKSTATE OF THE ART
Die Erfindung betrifft einen mehrpoligen Kommutatormotor mit mindestens vier Statorpolen und. it mit 'diesen zusammenwirkenden Ankerspulen. Die Ankerspulen sind zur Stromversorgung jeweils mit zwei Kommutatorlamellen eines Kommutators elektrisch verbunden. Die Anzahl der Ankerspulen ist größer als die Anzahl der Statorpole, wobei zur Reduzierung der Anzahl von den Kommutator kontaktierenden Bürsten magnetisch gleich orientierte Ankerpole bildende Ankerspulen durch ankerseitige elektrische Brückenleiter parallel geschaltet sind.The invention relates to a multi-pole commutator motor with at least four stator poles and. it with these interacting armature coils. The armature coils are each electrically connected to two commutator bars of a commutator for power supply. The number of armature coils is greater than the number of stator poles, with armature-side electrical bridge conductors being connected in parallel to reduce the number of brushes contacting the commutator that form magnetically identically oriented armature poles.
Derartige Kommutatormotoren werden beispielsweise als Pumpenantriebe für Antiblockiersysteme in Kraftfahrzeugen eingesetzt, als Servoantriebe oder als Versteilantriebe. Man kann derartige Kommutatormotoren auch als Kleinmotoren bezeichnen, da sie üblicherweise einen Leistungsbereich bis zu ca. einem Kilowatt abdecken. Ein typisches Beispiel für einen derartigen Kommutatormotor weist beispielsweise vier Statorpole auf, die vorzugsweise permanent erregt sind, und dementsprechend vier mit diesen zusammenwirkenden, durch Ankerspulen gebildete Ankerpole. Die Ankerspulen sind an einen ankerseitigen Kommutator angeschlossen, der üblicherweise über vier Bürsten mit Strom versorgt wird. Die Bürsten schleifen über Kommutatorlamellen des Kommutators.Commutator motors of this type are used, for example, as pump drives for anti-lock braking systems in motor vehicles, as servo drives or as adjusting drives. Such commutator motors can also be referred to as small motors, since they usually cover a power range of up to approximately one kilowatt. A typical example of such a commutator motor has, for example, four stator poles, which are preferably permanently excited, and accordingly four armature poles which interact with them and are formed by armature coils. The armature coils are connected to an armature-side commutator, which is usually powered by four brushes. The brushes rub over the commutator bars of the commutator.
Zur Einsparung von Bürsten ist es im Stand der Technik bekannt, solche Ankerspulen durch ankerseitige elektrische Brückenleiter parallel zu schalten, die magnetisch gleich, orientierte Ankerpole bilden. In der deutschen Patentschrift DE 197 57 279 Cl wird dazu vorgeschlagen, die Brückenleiter als Kommutatorlamellen-Kontaktbrücken auszugestalten, die durch Wicklungsdraht beim Wickeln der Ankerspulen mitgewickelt werden. Die Brückenleiter werden ebenso wie die Ankerspulen in Haken eingehängt, die an den Kommutatorlamellen zu den Ankerspulen hin angeordnet sind. Das Einhängen der Ankerspulen ist unproblematisch, da sich die Ankerspulen im Wesentlichen in Drehachsrichtung des Ankers erstrecken und somit leicht in die Haken eingehängt werden können. Problematisch hingegen ist das Einhängen der Brückenleiter, da sich diese quer zur Drehachsrichtung des Ankers erstrecken müssen, weil typischerweise diametral gegenüberliegende Kommutatorlamellen durch die Brückenleiter miteinander verbunden werden. Zudem ist es erforderlich, an der Welle des Ankers einen elektrisch isolierten Abschnitt zur Abstützung der Brückenleiter vorzusehen.To save brushes, it is known in the prior art to connect armature coils of this type in parallel by means of armature-side electrical bridge conductors which form magnetically identically oriented armature poles. In German patent DE 197 57 279 Cl it is proposed to design the bridge conductors as commutator lamella contact bridges, which are co-wound by winding wire when winding the armature coils. Like the armature coils, the bridge conductors are hooked into hooks which are arranged on the commutator bars towards the armature coils. Hooking the armature coils is unproblematic, since the armature coils extend essentially in the direction of the axis of rotation of the armature and can therefore be easily hooked into the hooks. On the other hand, the hanging of the bridge conductors is problematic, since they have to extend transversely to the direction of rotation of the armature, because typically diametrically opposed commutator segments are connected to one another by the bridge conductors. It is also necessary to have an electrical on the shaft of the armature insulated section to support the bridge conductor.
Bei Kommutatormotoren mit größerer Leistung, jedenfalls einer Leistung, die wesentlich größer ist als ein Kilowatt, werden Kommutatorlamellen durch Ausgleichsverbindungen parallel geschaltet, um ein Fließen von Ausgleichsströmen zwischen den Kommutatorlamellen zu ermöglichen, so dass die Bürsten durch Ausgleichströme nicht belastet werden. Eine Reduzierung von Bürsten ist jedenfalls nicht vorgesehen und würde bei derart leistungsstarken Motoren zu hohen Kommutatorströmen führen, was ein problematisches Stromabrissverhalten, gegebenenfalls sogar ein Rundfeuer am Kommutator zur Folge hätte.In the case of commutator motors with a higher power, or at least a power which is substantially greater than one kilowatt, commutator fins are connected in parallel by means of compensating connections in order to allow a flow of compensating currents between the commutator fins so that the brushes are not burdened by compensating currents. In any case, a reduction in brushes is not provided and would lead to high commutator currents in such powerful motors, which would result in problematic current stall behavior, possibly even a round fire on the commutator.
VORTEILE DER ERFINDUNGADVANTAGES OF THE INVENTION
Bei dem erfindungsgemäßen mehrpoligen Kommutatormotor hingegen sind die Brückenleiter über Ankernuten geführt, so dass wicklungstechnisch günstige "Einhängewinkel" an den Kornmuta- torlamellen möglich' sind. Im Bereich ihrer Einhänge-, löt- oder sonstigen Verbindung mit den Kommutatorlamellen erstrecken sich .die Brückenleiter im Wesentlichen entlang der Drehachsrichtung des Ankers, wohingegen sie sich beim Stand der Technik in diesem Bereich quer zur Drehachsrichtung erstrecken. Somit wird durch die Erfindung das Wickeln des Ankers wesentlich vereinfacht. Zudem ist der Kom utatormotor kompakt bauend, da zwischen Kommutator und Ankerzähnen kein Platz für eventuell unterzubringende Brückenleiter vorgesehen sein muss . Jedenfalls werden durch das Vorsehen der Brückenleiter Bürsten eingespart , so dass der erfindungsgemäße Kommutatormotor kostengünstig zu fertigen ist .In the case of the multi-pole commutator motor according to the invention, however, the bridge conductors are guided over armature grooves, so that "hooking angles" which are favorable in terms of winding technology are possible on the grain mutator lamellae. In the area of their hook-on, solder or other connection with the commutator lamellae, the bridge conductors extend essentially along the direction of rotation of the armature, whereas in the prior art they extend in this area transverse to the direction of rotation of the armature. Thus, the winding of the armature is significantly simplified by the invention. In addition, the Komutatormotor is compact, since there is no space between the commutator and armature teeth any bridge ladder to be accommodated must be provided. In any case, the provision of the bridge conductors saves brushes, so that the commutator motor according to the invention can be manufactured inexpensively.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des erfindungsgemäßen Kommutatormotors möglich.Advantageous further developments and improvements of the commutator motor according to the invention are possible through the measures listed in the subclaims.
Die Brückenleiter sind vorzugsweise jeweils um mindestens zwei oder mehr Ankerzähne gewickelt . Dabei hat es sich als vorteilhaft erwiesen, die Brückenleiter aus Wicklungsdraht herzustellen und zweckmäßigerweise an den Einhängevorrichtungen, die an den Kommutatorlamellen zum Einhängen der Ankerspulen vorgesehen sind, gemeinsam mit den Ankerspulen einzuhängen. Es versteht sich, dass auch sonstige Verbindungsarten zum elektrischen Verbinden der Brückenleiter mit Kommutatorlamellen möglich sind, beispielsweise Löten, Crimpen oder Schweißen .The bridge conductors are preferably wound around at least two or more anchor teeth. It has proven to be advantageous to manufacture the bridge conductors from winding wire and expediently to hang them together with the armature coils on the hanging devices provided on the commutator bars for hanging the armature coils. It goes without saying that other types of connection for electrically connecting the bridge conductors to commutator bars are also possible, for example soldering, crimping or welding.
Aus Wicklungsdraht gebildete Brückenleiter können vort eilhaft unmittelbar beim Wickeln der Ankerspulen mitgewickelt werden . Zweckmäßigerweise bestehen sie dann aus dem gleichen Wicklungsdraht wie die Ankerspulen, so dass kein Materialwechsel beim Einbringen der Brückenleiter notwendig ist . Die Brückenleiter können prinzipiell aus einem einzigen e- lektrischen Leiter- beispielsweise aus einem einzigen Wicklungsdraht, gebildet sein, von dem jeweils ein Ende mit einer Kommutatorlamelle elektrisch verbunden ist. Diese Variante der Erfindung hat sich in der Praxis als vorteilhaft herausgestellt.Bridge conductors formed from winding wire can be hastily wound directly during winding of the armature coils. Expediently, they then consist of the same winding wire as the armature coils, so that no change of material is necessary when inserting the bridge conductors. The bridge conductors can in principle be formed from a single electrical conductor, for example from a single winding wire, one end of which is electrically connected to a commutator bar. This variant of the invention has proven to be advantageous in practice.
Es ist aber auch möglich, dass die Brückenleiter jeweils aus mehreren Leitungsverbindungen gebildet werden, beispielsweise aus zwei Leitungsverbindungen. Bei dieser Variante ist es möglich, dass die Leitungsverbindungen, die einem Brückenleiter zugeordnet sind, über unterschiedliche Ankernuten geführt sind. Zum einen wird somit die Strombelastung der einzelnen Leitungsverbindungen eines Brückenleiters verringert und zum anderen ist es möglich, dass in einer zweckmäßigen Ausgestaltung der Erfindung die jeweils einem Brückenleiter zugeordneten Leitungsverbindungen derart gemeinsam mit den Ankerspulen in den Ankernuten angeordnet sind, dass auf den jeweiligen Ankerspulen und auf zumindest einer Leitungsverbindung, die gemeinsam in einer Ankernut angeordnet sind, ein gleichsinnig orientierter Stromfluss möglich ist. Durch den gleichsinnig orientierten Stromfluss wird eine Feldschwächung der jeweiligen Ankerspule vermieden.However, it is also possible for the bridge conductors to be formed in each case from a number of line connections, for example from two line connections. With this variant, it is possible for the line connections that are assigned to a bridge conductor to be routed via different anchor grooves. On the one hand, the current load of the individual line connections of a bridge conductor is thus reduced and, on the other hand, it is possible that, in an expedient embodiment of the invention, the line connections respectively assigned to a bridge conductor are arranged together with the armature coils in the armature slots in such a way that on the respective armature coils and on At least one line connection, which are arranged together in an armature groove, allows a flow of current oriented in the same direction. A field weakening of the respective armature coil is avoided by the current flow oriented in the same direction.
Zweckmäßigerweise ist vorgesehen, dass am Umfang des Kommutators jeweils diametral gegenüberliegende Kommutatorlamellen durch jeweils einen Brückenleiter parallel geschaltet sind. Diese Variante ist insbesondere bei einem vierpoligen Kommutatormotor vorteilhaft. Es versteht sich allerdings, dass auch Kommutatormotoren mit mehr als vier Polen, beispielsweise sechs oder acht Polen, mit den erfindungsgemäßen Brückenleitern ausgestattet sein können.It is expediently provided that on the circumference of the commutator diametrically opposite commutator segments are connected in parallel by a bridge conductor. This variant is particularly advantageous in the case of a four-pole commutator motor. However, it goes without saying that commutator motors with more than four poles, for example six or eight poles, can also be equipped with the bridge conductors according to the invention.
Zweckmäßigerweise . sind zum Halten der Brückenleiter AbStützungen und/oder Fixierungen vorgesehen, so dass die jeweiligen Brückenleiter- von einer den Anker des Kommutatormotors durchdringenden Ankerwelle elektrisch isoliert sind. Zudem stabilisieren die- Abstützungen bzw. Fixierungen die Brückenleiter mechanisch.Conveniently. supports and / or fixations are provided for holding the bridge conductors, so that the respective bridge conductors are electrically insulated from an armature shaft penetrating the armature of the commutator motor. In addition, the supports or fixations mechanically stabilize the bridge ladder.
Vorteilhaft können die Brückenleiter aber auch durch eine I- soliermasse, insbesondere durch eine Vergussmasse mechanisch fixiert sein. ' However, the bridge conductors can advantageously also be mechanically fixed by an insulating compound, in particular by a casting compound. '
Die Ankerspulen können prinzipiell in verschiedenen Wicklungsvarianten auf den Anker aufgebracht sein. Als vorteilhaft hat sich in der Praxis eine mehrpolige Schleifenwicklung herausgestellt.The armature coils can in principle be applied to the armature in different winding variants. In practice, a multipole loop winding has proven to be advantageous.
Ein bevorzugtes Anwendungsgebiet für die Erfindung sind e- lektrische Kleinmotoren bis zu einem Leistungsbereich von einem Kilowatt, die beispielsweise als Pumpenantrieb eines An- tiblockiersystems für Kraftfahrzeuge, als Servoantrieb oder als Versteilantrieb eingesetzt werden. ZEICHNUNGA preferred area of application for the invention is small electric motors with a power range of up to one kilowatt, which are used, for example, as a pump drive for an anti-lock braking system for motor vehicles, as a servo drive or as an adjusting drive. DRAWING
Ausführungsbeispiele der Erfindung sind in der Figur dargestellt und in der nachfolgenden Beschreibung näher erläutert.Embodiments of the invention are shown in the figure and explained in more detail in the following description.
BESCHREIBUNG DER AUSFÜHRUNGSBEISPIELEDESCRIPTION OF THE EMBODIMENTS
Die Figur zeigt das Abwicklungsschema eines Ankers 13 eines vierpoligen Kommutatormotors 14. Der Kommutatormotor 14 weist einen Stator 15 mit Statorpolen 16, 17, 18, 19 auf. Die Statorpole 16 bis 19 können elektrisch oder permanentmagnetisch erregt sein.The figure shows the development diagram of an armature 13 of a four-pole commutator motor 14. The commutator motor 14 has a stator 15 with stator poles 16, 17, 18, 19. The stator poles 16 to 19 can be excited electrically or permanently magnetically.
Der Anker 13 ist im Stator 15 drehbeweglich angeordnet . Über Bürsten 20 und 21, die über einen Kommutator 22 schleifen, werden Spulen 31 bis 42 mit Strom versorgt. Der Kommutator 22 weist Kommutatorlamellen 1 bis 12 auf, die elektrisch mit den Spulen 31 bis 42 verbunden sind. Dabei ist die Spule 31 eine- nends mit der Kommutatorlamelle 1 und andernends mit der Kommutatorlamelle 2, die Spule 32 einenends mit der Kommutatorlamelle 2 und andernends mit der Kommutatorlamelle 3 verbunden. Nach diesem Schema sind auch die weiteren Spulen 33 bis 42 mit den Kommutatorlamellen 3 bis 12, 1 verbunden.The armature 13 is rotatably arranged in the stator 15. Coils 31 to 42 are supplied with current via brushes 20 and 21, which loop through a commutator 22. The commutator 22 has commutator bars 1 to 12 which are electrically connected to the coils 31 to 42. The coil 31 is connected on the one hand to the commutator bar 1 and on the other hand to the commutator bar 2, the coil 32 on one end to the commutator bar 2 and on the other hand to the commutator bar 3. According to this scheme, the further coils 33 to 42 are also connected to the commutator bars 3 to 12, 1.
Die Spulen 31 bis 42 bestehen jeweils aus mehreren Windungen eines metallischen Leiters, beispielsweise eines isolierten Kupferdrahtes, die jeweils mehrfach um Ankerzähne 51 bis 62 gewickelt sind und deren Enden jeweils elektrisch mit den Kommutatorlamellen 1 bis 12 verbunden sind. Zwischen den Ankerzähnen 51 bis 62 befinden sich Ankernuten 71 bis 82, wobei die Ankernut 71 zwischen den Ankerzähnen 51 und 52, die Ankernut 72 zwischen den Ankerzähnen 52 und 53 usw. angeordnet sind.The coils 31 to 42 each consist of a plurality of turns of a metallic conductor, for example an insulated copper wire, each of them several times around armature teeth 51 to 62 are wound and the ends of which are electrically connected to the commutator bars 1 to 12. There are anchor grooves 71 to 82 between the anchor teeth 51 to 62, the anchor groove 71 being arranged between the anchor teeth 51 and 52, the anchor groove 72 between the anchor teeth 52 and 53 and so on.
Die Spule 31 ist mehrfach um die Ankerzähne 51, 52 und 53 gewickelt, so dass ihre Windungen in die zwischen den Ankerzähnen 51, 56 und 53, 54 angeordneten Ankernuten 82 bzw. 73 zu liegen kommen. Ferner ist die Spule 31 mit den Kommutatorlamellen 1 und 2 elektrisch verbunden. Die weiteren Spulen 32 bis 42 sind nach demselben Wicklungsschema um die Ankerzähne 51 bis 62 gewickelt.The coil 31 is wound several times around the armature teeth 51, 52 and 53 so that its turns come to lie in the armature grooves 82 and 73 arranged between the armature teeth 51, 56 and 53, 54. Furthermore, the coil 31 is electrically connected to the commutator bars 1 and 2. The further coils 32 to 42 are wound around the armature teeth 51 to 62 according to the same winding scheme.
Dis Spulen 31 bis 42 sind in Schleifenwicklung auf dem Anker 13 angeordnet. Bei dieser Wicklungsart sind an sich so viele Bürstensätze erforderlich, wie der jeweilige Kommutator Erregerpolpaare hat, im konkreten Fall beispielsweise zwei Bürstensätze mit je zwei Bürsten. Man kann die Schleifenwicklung auch als Parallelwicklung bezeichnen, da durch die Bürsten von Bürstensätzen, die beim konventionellen Kommutatormotor parallel geschaltet sind, die Wicklungsteile des Ankers parallel geschaltet werden.The coils 31 to 42 are arranged in a loop winding on the armature 13. With this type of winding, as many brush sets are required as the respective commutator has excitation pole pairs, in the specific case, for example, two brush sets, each with two brushes. The loop winding can also be called a parallel winding, since the winding parts of the armature are connected in parallel by the brushes of brush sets which are connected in parallel in the conventional commutator motor.
Die Kommutatorlamellen 1, 7; 2, 8; 3, 9; 4, 10; 5, 11/ 6, 12 sind durch Brückenleiter 43 bis 48 parallel geschaltet. Da- durch sind nicht wie bei einem konventionellen vierpoligen Kommutatormotor vier Bürsten, sondern lediglich zwei Bürsten zur Kontaktierung des Kommutators 22 erforderlich. Dennoch sind in der Figur nicht nur Bürsten 20 und 21, die über Zuleitungen 25, 26 mit elektrischem Strom versorgt werden, sondern auch zu den Bürsten 20, 21 parallel geschaltete Bürsten 23, 24 in gestrichelten -Linien gezeigt. Tatsächlich jedoch sind die Bürsten 23, 24 beim Kortimutatormotor 14 nicht vorgesehen. Dies ist in der Figur durch gestrichelt gezeichnete Zuleitungen 27, 28 zu den Bürsten 23, 24 verdeutlicht.The commutator bars 1, 7; 2, 8; 3, 9; 4, 10; 5, 11/6, 12 are connected in parallel by bridge conductors 43 to 48. There- by four brushes are not required as in a conventional four-pole commutator motor, but only two brushes for contacting the commutator 22. Nevertheless, not only brushes 20 and 21, which are supplied with electrical current via feed lines 25, 26, but also brushes 23, 24 connected in parallel to brushes 20, 21 are shown in dashed lines in the figure. In fact, however, the brushes 23, 24 are not provided in the cortimutator motor 14. This is illustrated in the figure by dashed lines 27, 28 to the brushes 23, 24.
In der gezeigten Stellung des Ankers 13 liegen die Bürsten 20, 21 an den Kommutatorlamellen 10, 7 an und versorgen diese mit einem elektrischen Ankerstrom IA. Von der Kommutatorlamelle 10 fließt eine Hälfte Ia/2 des Ankerstroms IA über die Ankerspule 40 zur Kommutatorlamelle 11, von dort weiter über die Spule 41 zur Kommutatorlamelle 12 und von dieser weiter über die Ankerspule 42 zur Kommutatorlamelle 1. Beim konventionellen Kommutatormotor würde der Ankerstrom IA/2 über die Bürste 24 und die Leitung 28 abfließen können. Im vorliegenden Fall jedoch fließt der Ankerstrom Ia/2 über den Brückenleiter 43 zur Kommutatorlamelle 7, wo er über die Bürste 21 abfließen kann.In the position of the armature 13 shown, the brushes 20, 21 rest against the commutator bars 10, 7 and supply them with an electrical armature current I A. From the commutator bar 10, a half flows I a / 2 of the armature current I A through the armature coil 40 to commutator 11, from there via the coil 41 to commutator 12 and from this further through the armature coil 42 to commutator 1. In the conventional commutator motor would of Armature current I A / 2 can flow through the brush 24 and the line 28. In the present case, however, the armature current I a / 2 flows via the bridge conductor 43 to the commutator bar 7, where it can flow off via the brush 21.
Beim konventionellen Kommutatormotor würde in der gezeigten Ankerstellung die andere Hälfte des Ankerstromes IÄ/2 über die Kommutatorlamelle 4 eingespeist werden. Dies ist jedoch beim Kommutatormotor 14 nicht vorgesehen. Statt dessen kann der Ankerstrom IA/2 über den Brückenleiter 43 zur Kommutatorlamelle 4 fließen. Von dort durchfließt er die Ankerspule 34, die Kommutatorlamelle 5, die Ankerspule 35, die Kommutatorlamelle 6, die Ankerspule 36 und die Kommutatorlamelle 7, um von dieser über die Bürste 21 und die Leitung 26 abfließen zu können.In the conventional commutator motor, the other half of the armature current I Ä / 2 would be fed in via the commutator bar 4 in the armature position shown. However, this is not provided for the commutator motor 14. Instead, the armature current I A / 2 can flow to the commutator bar 4 via the bridge conductor 43. From there it flows through the armature coil 34, the commutator plate 5, the armature coil 35, the commutator plate 6, the armature coil 36 and the commutator plate 7, in order to be able to flow away from it via the brush 21 and the line 26.
Die Brückenleiter 43 bis 48 sind durch die Ankernuten 71 bis 82 geführt. Dabei gilt für alle Brückenleiter 43 bis 48 dasselbe WicklungsSchema. Es genügt daher, das Wickelschema des Brückenleiters 43 zu erläutern. Wie die anderen Brückenleiter 44 bis 48 ist auch der Brückenleiter 43 vorliegend von Wicklungsdraht gebildet und wird unmittelbar beim Wickeln des Ankers 13 mitgewickelt. Der Brückenleiter 43 ist elektrisch mit der Kommutatorlamelle 1 verbunden. Dazu ist der Brückenleiter 43 z.B. im Kontaktbereich mit den Kommutatorlamellen 1 und 7 jeweils elektrisch leitend, beispielsweise indem eine ansonsten vorhandenen Lackisolierung entfernt ist. Andere Verbindungsarten zwischen den Brückenleitern 43 bis 48 und den Kommutatorlamellen 1 bis 12, z.B. Löten, Schweißen, Nieten oder dergleichen sind ohne Weiteres möglich.The bridge conductors 43 to 48 are guided through the anchor grooves 71 to 82. The same winding pattern applies to all bridge conductors 43 to 48. It is therefore sufficient to explain the winding diagram of the bridge conductor 43. Like the other bridge conductors 44 to 48, the bridge conductor 43 in the present case is formed by winding wire and is wound directly when the armature 13 is wound. The bridge conductor 43 is electrically connected to the commutator bar 1. For this purpose, the bridge conductor 43 is e.g. in the contact area with the commutator bars 1 and 7 in each case electrically conductive, for example by removing an otherwise existing paint insulation. Other types of connection between the bridge conductors 43 to 48 and the commutator bars 1 to 12, e.g. Soldering, welding, riveting or the like are easily possible.
Als vorteilhaft hat sich herausgestellt, den Brückenleiter in einen an der Kommutatorlamelle 1 angeordneten, jedoch in der Figur nicht dargestellten Haken einzuhängen. Von der Kommutatorlamelle 1 führt der Brückenleiter 43 zur Ankernut 82, und an den Ankerzähnen 51 bis 56 vorbei zur Ankernut 76. Von der Ankernut 76 aus ist der Brückenleiter 43 zur Kommutatorlamelle 7 geführt und dort elektrisch angeschlossen.It has proven to be advantageous to hang the bridge conductor in a hook arranged on the commutator bar 1, but not shown in the figure. The bridge conductor 43 leads from the commutator bar 1 to the armature groove 82, and past the armature teeth 51 to 56 to the armature groove 76. From the armature groove 76, the bridge conductor 43 is guided to the commutator bar 7 and is electrically connected there.
Die Brückenleiter 43 bis 48 sind jedenfalls so mit den Kommutatorlamellen 1 bis 12 verbunden, dass sie an den gemeinsamen Verbindungsstellen im Wesentlichen parallel oder nur geringfügig abgewinkelt zur Drehachse 50 des Ankers 13 und des Kommutators 22 verlaufen. Jedenfalls gestaltet sich durch die Erfindung, bei der die Brückenleiter 43 -' 48 in den zur Drehachse 50 parallelen oder allenfalls geringfügig geschränkten Ankernuten 71 bis 82 verlaufen, das Verbinden der Brückenleiter 43 bis 48 mit den Kommutatorlamellen 1 bis 12 fertigungstechnisch sehr einfach.The bridge conductors 43 to 48 are in any case connected to the commutator segments 1 to 12 in such a way that they run at the common connection points essentially parallel or only slightly angled to the axis of rotation 50 of the armature 13 and the commutator 22. Armature slots extend 71-82 parallel '48 in the axis of rotation 50 or at most slightly geschränkten, the connection of the bridge conductor 43 to 48 with the commutator segments 1 to 12 of production technology very simple - each case designed by the invention, in which the bridge conductors 43rd
Für das Wickeln der Brückenleiter 43 - 48 um die Ankerzähne 51 bis 62 sind prinzipiell verschiedene Wicklungsschemen möglich. Exemplarisch an den Brückenleitern 43 und 46 sollen im Folgenden weitere Wicklungsvarianten dargestellt werden.In principle, different winding schemes are possible for winding the bridge conductors 43-48 around the armature teeth 51-62. In the following, further winding variants will be shown as examples on the bridge conductors 43 and 46.
Die bereits erläuterte Leitungsführung der Brückenleiter 43, 46 wird im Folgenden mit 43a, 46a bezeichnet. Zusätzlich sind Leitungsverbindungen 43b, 46b eingezeichnet, die teilweise in anderen Ankernuten geführt sind, als die Leitungsverbindungen 43a, 46a. Die .Leitungsverbindung 43b führt von der Kommutatorlamelle 1 zur Ankernut 73 an den Ankerzähnen 54, 55, 56 vorbei zur Ankernut 76 und von dort zur Kommutatorlamelle 7. Durch diese Leitungsführung wird erreicht, dass der Stromfluss auf dem Brückenleiter 43b in der gezeigten Ankerstellung gleichsinnig orientiert ist wie der Stromfluss der in den Ankernuten 73, 76 angeordneten Leiter der Ankerspulen 31, 33 bzw. 34, 37. Der Stromfluss auf dem Brückenleiter 43b führt somit nicht zu einer Feldschwächung des Ankerfeldes, sondern sogar noch zu einer Feldverstärkung.The already explained line routing of the bridge conductors 43, 46 is referred to below as 43a, 46a. In addition, line connections 43b, 46b are shown, some of which are guided in different anchor grooves than the line connections 43a, 46a. The line connection 43b leads from the commutator lamella 1 to the armature groove 73 past the armature teeth 54, 55, 56 to the armature groove 76 and from there to the commutator lamella 7. This line routing ensures that the current flow on the bridge conductor 43b is oriented in the same direction in the armature position shown is like the current flow of the conductors of the armature coils 31, 33 and 34, 37 arranged in the armature grooves 73, 76. The current flow on the bridge conductor 43b thus does not lead to a field weakening of the armature field, but even to a field strengthening.
Dies gilt auch für die Leitungsverbindung 46b des Brückenleiters 46, die von der Kommutatorlamelle 10 über die Ankernut 79 an den Ankerzähnen 59 bis 53 vorbei zur Ankernut 72 führt und von dieser zur Kommutatorlamelle 4. Auch auf der Leitungsverbindung 46b ist der Stromfluss in der gezeigten Ankerstellung gleichsinnig orientiert, wie in den Leitern der ebenfalls in den Ankernuten 79, 72 angeordneten Ankerspulen 42, 33 bzw. 37, 40.This also applies to the line connection 46b of the bridge conductor 46, which leads from the commutator lamella 10 via the armature groove 79 past the armature teeth 59 to 53 to the armature groove 72 and from there to the commutator lamella 4. The current flow is also in the armature position shown on the line connection 46b oriented in the same direction as in the conductors of the armature coils 42, 33 and 37, 40 also arranged in the armature grooves 79, 72.
Prinzipiell könnten alle Brückenleiter 43 bis 48 sowohl dem in durchgezogenen Linien gezeichneten, eingangs erläuterten Wicklungsschema folgen als auch dem anhand der Leitungsverbindungen 43b oder 46b gezeigten WicklungsSchema.In principle, all bridge conductors 43 to 48 could follow both the winding diagram drawn at the beginning and illustrated in solid lines and the winding diagram shown on the basis of the line connections 43b or 46b.
Es ist zudem auch möglich, dass für einen Brückenleiter 43 bis 48 mehrere Leitungswege vorgesehen sind. Beispielsweise könnte der Brückenleiter 43 beide Leitungsverbindungen 43a, 43b sowie gegebenenfalls auch weitere Leitungsverbindungen aufweisen.It is also possible that a plurality of line paths are provided for a bridge conductor 43 to 48. For example the bridge conductor 43 could have both line connections 43a, 43b and possibly also further line connections.
Es versteht sich, dass auch weitere Varianten der Erfindung prinzipiell möglich sind. Ferner sind die in der Beschreibung sowie in den Ansprüchen angegebenen Maßnahmen beliebig kombinierbar. It goes without saying that further variants of the invention are also possible in principle. Furthermore, the measures specified in the description and in the claims can be combined as desired.

Claims

Mehrpoliger Kommutatormotor mit BrückenleiternAnsprüche Multipole commutator motor with bridge conductors
1. Mehrpoliger Kommutatormotor mit mindestens vier Stator- polen.(16"- 19) und mit mit diesen zusammenwirkenden Ankerspulen (31 - 42) , die zur Stromversorgung jeweils mit zwei Kommutatorlamellen (1 - 12) eines Kommutators (22) elektrisch verbunden sind und deren Anzahl größer ist als die Anzahl der Statorpole (16 - 19) , wobei zur Reduzierung der Anzahl von den Kommutator (22) kontaktierenden Bürsten (20, 21; 23, 24) magnetisch gleich orientierte Ankerpole bildende Ankerspulen1. Multi-pole commutator motor with at least four stator poles. (16 "- 19) and with armature coils (31 - 42) interacting with them, each of which is electrically connected to two commutator bars (1 - 12) of a commutator (22) and the number of which is greater than the number of stator poles (16-19), the armature coils forming magnetically identically oriented armature poles to reduce the number of brushes (20, 21; 23, 24) contacting the commutator (22)
(31 - 42) durch ankerseitige elektrische Brückenleiter (43 - 48) parallel geschaltet sind, dadurch gekennzeichnet, dass zumindest teilweise die Brückenleiter (43 - 48) über Ankernuten (71 - 82) geführt sind.(31-42) are connected in parallel by anchoring-side electrical bridge conductors (43-48), characterized in that the bridge conductors (43-48) are at least partially guided via anchor grooves (71-82).
2. Kommutatormotor nach Anspruch 1, dadurch gekennzeichnet, dass die über Ankernuten (71 - 82) geführten Brückenleiter2. Commutator motor according to claim 1, characterized in that the bridge conductors guided via armature grooves (71 - 82)
(43 - 48) jeweils um mindestens zwei Ankerzähne (51 - 62) gewickelt sind. (43 - 48) are each wound around at least two anchor teeth (51 - 62).
3. Kommutatormotor nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Brückenleiter (43 - 48) von Wicklungsdraht gebildet und insbesondere an an den Kommutatorlamellen (1, 7; 2, 8; 3, 9; 4, 10; 5, 11; 6, 12) angeordneten EinhängeVorrichtungen, insbesondere Haken, eingehängt sind.3. Commutator motor according to claim 1 or 2, characterized in that the bridge conductors (43 - 48) are formed by winding wire and in particular on the commutator bars (1, 7; 2, 8; 3, 9; 4, 10; 5, 11; 6, 12) arranged hooking devices, in particular hooks.
4. Kommutatormotor nach Anspruch 3, dadurch gekennzeichnet, dass die Brückenleiter (43 - 48) beim Wickeln der Ankerspulen4. commutator motor according to claim 3, characterized in that the bridge conductors (43 - 48) when winding the armature coils
(31 - 42) mitgewickelt sind und insbesondere aus dem gleichen Wicklungsdraht bestehen wie die Ankerspulen (31 - 42) .(31-42) are co-wound and in particular consist of the same winding wire as the armature coils (31-42).
5. Kommutatormotor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die. Brückenleiter (43 - 48) jeweils aus mehreren Leitungsverbindungen (43a, 43b; 46a, 46b) gebildet werden.5. commutator motor according to one of the preceding claims, characterized in that the. Bridge conductors (43 - 48) are each formed from a plurality of line connections (43a, 43b; 46a, 46b).
6. Kommutatormotor nach Anspruch 5, dadurch gekennzeichnet, dass die jeweils einem Brückenleiter (43 - 48) zugeordneten Leitungsverbindungen (43a, 43b; 46a, 46b) über unterschiedliche Ankernuten (71 - 82) geführt sind.6. Commutator motor according to claim 5, characterized in that the respective line connections (43a, 43b; 46a, 46b) assigned to a bridge conductor (43-48) are guided via different armature grooves (71-82).
7. Kommutatormotor nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die jeweils einem Brückenleiter (43 - 48) zugeordneten Leitungsverbindungen (43a, 43b; 46a, 46b) derart gemeinsam mit den Ankerspulen (31 - 42) in den Ankernuten (71 - 82) angeordnet sind, dass auf den jeweiligen Ankerspulen (31 - 42) und auf zumindest einer Leitungsverbindung (43b; 46b), die gemeinsam in einer Ankernut (71 - 82) angeordnet sind, ein gleichsinnig orientierter Stromfluss möglich ist. 7. Commutator motor according to claim 5 or 6, characterized in that the respective line connections (43a, 43b; 46a, 46b) assigned to a bridge conductor (43-48) together with the armature coils (31-42) in the armature grooves (71-82 ) are arranged in such a way that a current flow in the same direction is possible on the respective armature coils (31-42) and on at least one line connection (43b; 46b), which are arranged together in an armature groove (71-82).
8. Kommutatormotor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass am Umfang des Kommutators (22) jeweils diametral gegenüberliegende Kommutatorlamellen (1, 7; 2, 8; 3, 9; 4, 10; 5, 11; 6, 12) durch jeweils einen Brückenleiter (43 - 48) parallel geschaltet sind.8. Commutator motor according to one of the preceding claims, characterized in that on the circumference of the commutator (22) diametrically opposite commutator segments (1, 7; 2, 8; 3, 9; 4, 10; 5, 11; 6, 12) one bridge conductor (43 - 48) each are connected in parallel.
9. Kommutatormotor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Abstützungen und/oder Fixierungen zum Halten der Brückenleiter (43 - 48) vorgesehen sind, so dass diese von einer Ankerwelle (49) elektrisch isoliert sind .9. commutator motor according to one of the preceding claims, characterized in that supports and / or fixations are provided for holding the bridge conductors (43 - 48) so that they are electrically insulated from an armature shaft (49).
10. Kommutator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Brückenleiter (43 - 48) durch eine Isoliermasse, insbesondere eine Vergussmasse, mechanisch fixiert sind.10. Commutator according to one of the preceding claims, characterized in that the bridge conductors (43 - 48) are mechanically fixed by an insulating compound, in particular a sealing compound.
11. Kommutatormotor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ankerspulen (31 - 42) als mehrpolige Schleifenwicklungen gewickelt sind..11. Commutator motor according to one of the preceding claims, characterized in that the armature coils (31 - 42) are wound as multi-pole loop windings.
12. Kommutatormotor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Anzahl der zur Kontak- tierung der Ankerspulen (31 - 42) vorgesehenen Bürsten (20, 21; 23, 24) kleiner ist als die Anzahl der Ankerpole.12. Commutator motor according to one of the preceding claims, characterized in that the number of brushes (20, 21; 23, 24) provided for contacting the armature coils (31-42) is smaller than the number of armature poles.
13. Kommutatormotor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er als ein elektrischer Kleinmotor, insbesondere als ein Pumpenantrieb eines Antiblo- ckiersystems für Kraftfahrzeuge, als ein Servoantrieb oder als ein Versteilantrieb, insbesondere in einem Leistungsbereich bis zu einem Kilowatt, ausgestaltet ist. 13. Commutator motor according to one of the preceding claims, characterized in that it as a small electric motor, in particular as a pump drive of an anti-lock system for motor vehicles, as a servo drive or is designed as an adjusting drive, in particular in a power range up to one kilowatt.
EP02708172A 2001-03-31 2002-01-26 Multi-pole commutator motor comprising bridge conductors Withdrawn EP1388198A1 (en)

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Families Citing this family (8)

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US6975054B2 (en) * 2003-04-18 2005-12-13 Ultra Motor Company Limited Electric motor
JP5349754B2 (en) * 2004-10-22 2013-11-20 株式会社ミツバ Manufacturing method for armature of rotating electrical machine
JP4468393B2 (en) * 2007-03-22 2010-05-26 アスモ株式会社 Armature of rotating electric machine, winding method of armature, and rotating electric machine
DE102007044399A1 (en) * 2007-09-18 2009-04-09 Continental Automotive Gmbh Four-pole electric motor drive with a hammer brush holder system
FR2959360B1 (en) * 2010-04-27 2013-01-18 Valeo Equip Electr Moteur ELECTRICAL MACHINE COMPRISING A ROTOR HAVING A WINDING FOR FACILITATING SWITCHING, AND ASSOCIATED STARTER
USD681079S1 (en) * 2010-07-19 2013-04-30 Buhler (Indiana) Pvt. Ltd. Pulse processing machine
KR101232883B1 (en) 2011-09-05 2013-02-13 동양기전 주식회사 Winding method of armature for dc motor
JP6886604B2 (en) * 2016-09-27 2021-06-16 株式会社アイシン Manufacturing method of rotary electric machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949785B2 (en) * 1977-12-05 1984-12-05 株式会社セコ−技研 DC motor with double armature windings
US4437029A (en) * 1981-10-16 1984-03-13 Itsuki Ban Direct current motor
JPS58108950A (en) * 1981-12-14 1983-06-29 Canon Inc DC motor
DE3645262C2 (en) * 1986-12-05 1993-10-14 Robert Stahlschmidt Elektromot Electric motor for domestic power tools
JP2535181B2 (en) * 1987-09-30 1996-09-18 株式会社シコー技研 5-phase DC motor with no overlapping armature windings
DE19757279C1 (en) * 1997-12-22 1999-08-26 Siemens Ag Commutator motor, in particular for driving a motor vehicle servo drive, and method for its production
JP3559181B2 (en) * 1998-11-30 2004-08-25 三菱電機株式会社 Motor for electric power steering system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02080340A1 *

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