WO2010142387A2 - Rotor for an electric motor - Google Patents
Rotor for an electric motor Download PDFInfo
- Publication number
- WO2010142387A2 WO2010142387A2 PCT/EP2010/003259 EP2010003259W WO2010142387A2 WO 2010142387 A2 WO2010142387 A2 WO 2010142387A2 EP 2010003259 W EP2010003259 W EP 2010003259W WO 2010142387 A2 WO2010142387 A2 WO 2010142387A2
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- WIPO (PCT)
- Prior art keywords
- rotor
- commutator
- winding
- hook
- insulation
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
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- 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
- H01R39/32—Connections of conductor to commutator segment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/9501—Semiconductor wafers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/9501—Semiconductor wafers
- G01N21/9505—Wafer internal defects, e.g. microcracks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/04—Connections between commutator segments and windings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/188—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping having an uneven wire-receiving surface to improve the contact
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- 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
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
- H01R43/0228—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections without preliminary removing of insulation before soldering or welding
Definitions
- the present invention relates to a rotor for an electric motor according to the preamble of claim 1, an electric motor according to the preamble of claim 6 and a method of manufacturing a rotor according to the preamble of claim 7.
- the rotor in question for an electric motor is equipped with a rotor shaft, a rotor winding and a commutator.
- the rotor usually interacts with a stator.
- the electric motor is a pure DC motor or a universal motor.
- the known rotor (DE 100 42 512 Al), from which the invention proceeds, has the above-mentioned construction.
- the contact of the rotor windings on the commutator is in the foreground.
- a hook commutator For the contacting of the winding ends of the commutator is equipped as a so-called "hook commutator.”
- Such a hook commutator has on the one hand Kommutatorlamellen for engagement with Kommutatorbürsten and on the other hand Kommutatorhaken for connection to the winding ends of the rotor winding.
- the winding ends are placed around a respective commutator hook and then connected to the hook inner sides of the respective Kommutatorhakens by way of H discloseverstemmens.
- the respective commutator hook is bent so that it comes to a clamping of the respective winding end in Kommutatorhaken.
- the compound is subjected to a heat treatment, here by applying an electrical voltage.
- the resulting heat development initially leads to a release of the paint insulation and then to a weld-like connection between the coil end and commutator.
- a disadvantage of the known rotor is the fact that the energy required for dissolving the paint insulation before it comes to the actual hot caulking is considerable. Furthermore, it can not be ruled out that the insulation of the winding ends in the respectively adjacent region to the commutator hooks is also released, which can correspondingly lead to short circuits between adjacent commutator segments.
- the invention is based on the problem, the known rotor in such a way and further develop that the insulation of the winding wire in the field of Kommutatorhakens is targeted and solved in a structurally simple and energetically advantageous manner.
- At least one hook inner side of the commutator hook has a surface structure which causes point and / or line loads on the winding end upon engagement with the respective winding end. The point and / or line loads in turn cause a targeted injury and preferably a release of the insulation of the winding end.
- the surface structure has at least one edge and / or tip projecting in the direction of the respective winding end. This allows the above increased loads on the coil ends to be realized in a simple manner.
- the proposed electric motor is equipped with the above rotor and has, moreover, the usual components such as stator, yoke package o. The like. On. Reference may be made in full to the comments on the proposed rotor.
- Essential in the proposed method is the fact that prior to the hot caulking and / or during the hot caulking for injury and / or loosening the insulation point or line loads on the hook inner sides of the respective commutator hook are applied to the respective winding end.
- Fig. 1 the upper half of a proposed rotor in a sectional side view
- the rotor shown in the drawing is associated with an electric motor, which may be configured as a pure DC motor or universal motor.
- the electric motor is preferably associated with a motor vehicle.
- the electric motor can advantageously be used in the context of motor vehicle locks, in particular in the area of central locking drives, opening drives or closing auxiliary drives.
- Other preferred applications are window regulators, sunroof drives, motorized seat adjusters, transmission actuators, damper and door actuators o.
- window regulators, sunroof drives, motorized seat adjusters, transmission actuators, damper and door actuators o.
- the rotor is equipped in the usual way with a rotor shaft 1, a rotor winding 2 and a commutator 3, wherein the rotor winding 2 consists of winding wire with an insulation.
- the insulation is here and preferably a lacquer insulation.
- the commutator 3 is configured as a hook commutator and has commutator blades 4 and commutator hooks 5 for the winding ends 6 of the rotor winding 2.
- the term "winding ends” is to be understood here broadly and, in addition to winding ends in the narrower sense, fundamentally also includes winding starts A commutator hook 5 can in this sense be associated with one or more winding ends 6.
- winding ends 6 are here connected to the hook inner sides 7, 8 of the respective commutator hooks 5 by means of hot caulking.
- the structure of the rotor corresponds to the known prior art.
- At least one hook inner side 7, 8 of the commutator 5 has a surface structure, the point 6 and / or line loads on the winding end 6 and thus a targeted injury, in particular a removal when engaging with the respective winding end the insulation of the winding end 6 causes.
- the above surface structure can be realized in that at least one convex and / or concave shape is or are provided. Particularly preferred variants for this purpose are shown in FIG. 2. Particularly good results for the release of the insulation can be achieved in that at least one hook inner side 7, 8 has a surface structure with at least one in the direction of the respective winding end 6 projecting edge 9 and / or at least one in the direction of the respective Wicklungsen- of 6 protruding tip 10 has.
- the edge 9 extends in the region of the hook inner sides 7, 8 preferably substantially perpendicular to the extent of the respective winding end 6.
- Fig. 2a) shows the embodiment with a single edge 9. In the embodiment shown in Fig. 2b), however, are several, parallel mutually extending edges 9 are provided.
- the surface structure in question of the at least one hook inner side 7, 8 has a periodically recurring surface pattern.
- An example of this is the design of the surface structure in the manner of a knurling. This is exemplified in Fig. 2d).
- Fig. 2c shows a surface structure of the at least one hook inner side 7, 8 with a single concave shape, which laterally forms an edge 9, respectively.
- a plurality of concave formations may be provided. It is essential. that the concave formation or the concave formations extend and / or extend here in a channel-like manner substantially perpendicular to the extension direction of the respective winding end 6.
- At least one hook inner side 7, 8 has a surface structure with increased roughness.
- increased point loads can be generated, with the respective load points lying very close to each other.
- the contact resistance between the coil ends 6 and the commutator hooks 5 can be reduced, regardless of fluctuations in the thickness of a lacquer insulation or of an optionally occurring oxidation of the hook inner sides 7, 8.
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Current Collectors (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
Rotor für einen Elektromotor Rotor for an electric motor
Die vorliegende Erfindung betrifft einen Rotor für einen Elektromotor gemäß dem Oberbegriff von Anspruch 1, einen Elektromotor gemäß dem Oberbegriff von Anspruch 6 sowie ein Verfahren zum Herstellen eines Rotors gemäß dem Oberbegriff von Anspruch 7.The present invention relates to a rotor for an electric motor according to the preamble of claim 1, an electric motor according to the preamble of claim 6 and a method of manufacturing a rotor according to the preamble of claim 7.
Der in Rede stehende Rotor für einen Elektromotor ist mit einer Rotorwelle, einer Rotorwicklung und einem Kommutator ausgestattet. Der Rotor wirkt in übli- eher Weise mit einem Stator zusammen. Bei dem Elektromotor handelt es sich um einen reinen Gleichstrommotor oder um einen Universalmotor.The rotor in question for an electric motor is equipped with a rotor shaft, a rotor winding and a commutator. The rotor usually interacts with a stator. The electric motor is a pure DC motor or a universal motor.
Der bekannte Rotor (DE 100 42 512 Al), von dem die Erfindung ausgeht, weist den oben genannten Aufbau auf. Dabei steht vorliegend die Kontaktierung der Rotorwicklungen am Kommutator im Vordergrund.The known rotor (DE 100 42 512 Al), from which the invention proceeds, has the above-mentioned construction. In the present case, the contact of the rotor windings on the commutator is in the foreground.
Bei dem bekannten Rotor bestehen die Rotorwicklungen aus Wicklungsdraht mit einer Lackisolierung, um Kurzschlüsse zwischen den einzelnen Windungen der Rotorwicklung zu vermeiden. Für die Kontaktierung der Wicklungsenden ist der Kommutator als sogenannter „Hakenkommutator" ausgestattet. Ein solcher Hakenkommutator weist einerseits Kommutatorlamellen für den Eingriff mit Kommutatorbürsten und andererseits Kommutatorhaken für die Verbindung mit den Wicklungsenden der Rotorwicklung auf.In the known rotor, the rotor windings of winding wire with a paint insulation to avoid short circuits between the individual windings of the rotor winding. For the contacting of the winding ends of the commutator is equipped as a so-called "hook commutator." Such a hook commutator has on the one hand Kommutatorlamellen for engagement with Kommutatorbürsten and on the other hand Kommutatorhaken for connection to the winding ends of the rotor winding.
Zur Kontaktierung werden die Wicklungsenden um jeweils einen Kommutatorhaken gelegt und anschließend mit den Hakeninnenseiten des jeweiligen Kommutatorhakens im Wege des Heißverstemmens verbunden. Beim Heißverstemmen wird der jeweilige Kommutatorhaken umgebogen, so dass es zu einer Klemmung des jeweiligen Wicklungsendes im Kommutatorhaken kommt. Gleichzeitig wird die Verbindung einer Wärmebehandlung unterzogen, hier durch Anlegen einer elektrischen Spannung. Die resultierende Wärmeentwicklung führt zunächst zu einem Lösen der Lackisolierung und anschließend zu einer schweißähnlichen Verbindung zwischen Wicklungsende und Kommutatorhaken. Nachteilig bei dem bekannten Rotor ist die Tatsache, dass der Energieeinsatz, der für das Lösen der Lackisolierung erforderlich ist, bevor es zu dem eigentlichen Heißverstemmen kommt, beträchtlich ist. Ferner lässt sich nicht ausschließen, dass auch die Isolierung der Wicklungsenden im jeweils benachbarten Be- reich zu den Kommutatorhaken gelöst wird, was entsprechend zu Kurzschlüssen zwischen benachbarten Kommutatorlamellen führen kann.For contacting, the winding ends are placed around a respective commutator hook and then connected to the hook inner sides of the respective Kommutatorhakens by way of Heißverstemmens. When hot caulking the respective commutator hook is bent so that it comes to a clamping of the respective winding end in Kommutatorhaken. At the same time the compound is subjected to a heat treatment, here by applying an electrical voltage. The resulting heat development initially leads to a release of the paint insulation and then to a weld-like connection between the coil end and commutator. A disadvantage of the known rotor is the fact that the energy required for dissolving the paint insulation before it comes to the actual hot caulking is considerable. Furthermore, it can not be ruled out that the insulation of the winding ends in the respectively adjacent region to the commutator hooks is also released, which can correspondingly lead to short circuits between adjacent commutator segments.
Es wurde auch vorgeschlagen, den Wicklungsenden vor dem Heißverstemmen eine separate, die Lackisolierung lösende thermische und/oder mechanische Be- handlung zukommen zu lassen (WO 90/04864 Al). Neben dem Abflammen der Wicklungsenden wird hier das Abbürsten oder Abstrahlen der Wicklungsenden vorgeschlagen, um die Lackisolierung zu lösen. All diese Verfahren sind konstruktiv und/oder energetisch aufwendig.It has also been proposed to provide the winding ends with a separate thermal and / or mechanical treatment which dissolves the paint insulation prior to hot caulking (WO 90/04864 A1). In addition to the flames of the coil ends here the brushing or blasting of the coil ends is proposed to solve the paint insulation. All of these methods are structurally and / or energetically complex.
Der Erfindung liegt das Problem zugrunde, den bekannten Rotor derart auszugestalten und weiterzubilden, dass die Isolierung des Wicklungsdrahts im Bereich des Kommutatorhakens gezielt und auf konstruktiv einfache und energetisch vorteilhafte Weise gelöst wird.The invention is based on the problem, the known rotor in such a way and further develop that the insulation of the winding wire in the field of Kommutatorhakens is targeted and solved in a structurally simple and energetically advantageous manner.
Das obige Problem wird bei einem Rotor gemäß dem Oberbegriff von Anspruch 1 durch die Merkmale des kennzeichnenden Teils von Anspruch 1 gelöst.The above problem is solved in a rotor according to the preamble of claim 1 by the features of the characterizing part of claim 1.
Wesentlich ist die Überlegung, die Kommutatorhaken so auszugestalten, dass durch einen mechanischen kraftschlüssigen Eingriff zwischen dem jeweiligen Kommutatorhaken und dem jeweiligen Wicklungsende, insbesondere beim Umbiegen des Kommutatorhakens, eine Verletzung und/oder ein Lösen der Isolierung des Wicklungsendes im unmittelbaren Bereich des Kommutatorhakens bewirkbar ist. Im Einzelnen wird vorgeschlagen, dass mindestens eine Hakeninnenseite der Kommutatorhaken eine Oberflächenstruktur aufweist, die beim Ein- griff mit dem jeweiligen Wicklungsende Punkt- und/oder Linienbelastungen auf das Wicklungsende bewirkt. Die Punkt- und/oder Linienbelastungen bewirken wiederum eine gezielte Verletzung und vorzugsweise ein Lösen der Isolierung des Wicklungsendes.It is essential to consider designing the commutator hooks in such a way that injury and / or loosening of the insulation of the end of the winding in the immediate area of the commutator hook can be effected by mechanical frictional engagement between the respective commutator hook and the respective winding end, in particular when bending the commutator hook. Specifically, it is proposed that at least one hook inner side of the commutator hook has a surface structure which causes point and / or line loads on the winding end upon engagement with the respective winding end. The point and / or line loads in turn cause a targeted injury and preferably a release of the insulation of the winding end.
Für die Realisierung der Oberflächenstruktur sind zahlreiche vorteilhafte Varianten denkbar. Dies ist Gegenstand der Ansprüche 2 bis 5. In besonders bevorzugter Ausgestaltung gemäß Anspruch 3 weist die Oberflächenstruktur mindestens eine in Richtung des jeweiligen Wicklungsendes vorstehende Kante und/oder Spitze auf. Hiermit lassen sich die obigen erhöhten Be- lastungen auf die Wicklungsenden auf einfache Weise realisieren.Numerous advantageous variants are conceivable for the realization of the surface structure. This is the subject matter of claims 2 to 5. In a particularly preferred embodiment according to claim 3, the surface structure has at least one edge and / or tip projecting in the direction of the respective winding end. This allows the above increased loads on the coil ends to be realized in a simple manner.
Nach einer weiteren Lehre, der eigenständige Bedeutung zukommt, wird das obige Problem durch einen Elektromotor gemäß Anspruch 6 gelöst.According to another teaching of independent significance, the above problem is solved by an electric motor according to claim 6.
Der vorschlagsgemäße Elektromotor ist mit dem obigen Rotor ausgestattet und weist im Übrigen die üblichen Komponenten wie Stator, Jochpaket o. dgl. auf. Auf die Ausführungen zu dem vorschlagsgemäßen Rotor darf in vollem Umfange verwiesen werden.The proposed electric motor is equipped with the above rotor and has, moreover, the usual components such as stator, yoke package o. The like. On. Reference may be made in full to the comments on the proposed rotor.
Nach einer weiteren Lehre, der ebenfalls eigenständige Bedeutung zukommt, wird ein Verfahren zum Herstellen des obigen Rotors gemäß Anspruch 7 beansprucht.According to another teaching, also of independent significance, a method for producing the above rotor according to claim 7 is claimed.
Wesentlich bei dem vorschlagsgemäßen Verfahren ist die Tatsache, dass vor dem Heißverstemmen und/oder während des Heißverstemmens zur Verletzung und/oder zum Lösen der Isolierung Punkt- oder Linienbelastungen über die Hakeninnenseiten des jeweiligen Kommutatorhakens auf das jeweilige Wicklungsende aufgebracht werden.Essential in the proposed method is the fact that prior to the hot caulking and / or during the hot caulking for injury and / or loosening the insulation point or line loads on the hook inner sides of the respective commutator hook are applied to the respective winding end.
Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen näher erläutert. In der Zeichnung zeigtIn the following the invention will be explained in more detail by means of exemplary embodiments. In the drawing shows
Fig. 1 die obere Hälfte eines vorschlagsgemäßen Rotors in einer geschnittenen Seitenansicht undFig. 1, the upper half of a proposed rotor in a sectional side view and
Fig. 2 den Kommutator gemäß Fig. 1 in einer Schnittansicht gemäß der dortigen Linie A-A sowie in einer Draufsicht gemäß der Linie B-B in vier nebeneinander dargestellten Ausführungsformen a), b), c) und d). Der in der Zeichnung dargestellte Rotor ist einem Elektromotor zugeordnet, der als reiner Gleichstrommotor oder als Universalmotor ausgestaltet sein kann. Der Elektromotor ist vorzugsweise einem Kraftfahrzeug zugeordnet. Hier kann der Elektromotor vorteilhaft im Rahmen von Kraftfahrzeugschlössern, dort insbe- sondere im Bereich von Zentralverriegelungsantrieben, von Öffnungsantrieben oder von Zuziehhilfsantrieben Anwendung finden. Andere bevorzugte Anwendungsbereiche sind Fensterheberantriebe, Schiebedachantriebe, motorische Sitzverstellungen, Getriebeaktuatoren, Klappen- und Türantriebe o. dgl..1 in a sectional view according to the local line AA and in a plan view along the line BB in four embodiments a), b), c) and d), which are shown next to one another. The rotor shown in the drawing is associated with an electric motor, which may be configured as a pure DC motor or universal motor. The electric motor is preferably associated with a motor vehicle. Here, the electric motor can advantageously be used in the context of motor vehicle locks, in particular in the area of central locking drives, opening drives or closing auxiliary drives. Other preferred applications are window regulators, sunroof drives, motorized seat adjusters, transmission actuators, damper and door actuators o. Like ..
Der Rotor ist in üblicher Weise mit einer Rotorwelle 1 , einer Rotorwicklung 2 und einem Kommutator 3 ausgestattet, wobei die Rotorwicklung 2 aus Wicklungsdraht mit einer Isolierung besteht. Bei der Isolierung handelt es sich hier und vorzugsweise um eine Lackisolierung.The rotor is equipped in the usual way with a rotor shaft 1, a rotor winding 2 and a commutator 3, wherein the rotor winding 2 consists of winding wire with an insulation. The insulation is here and preferably a lacquer insulation.
Der Kommutator 3 ist als Hakenkommutator ausgestaltet und weist Kommuta- torlamellen 4 und Kommutatorhaken 5 für die Wicklungsenden 6 der Rotorwicklung 2 auf. Der Begriff „Wicklungsenden" ist hier weit zu verstehen und umfasst neben Wicklungsenden im engeren Sinne grundsätzlich auch Wicklungsanfänge. Ein Kommutatorhaken 5 kann in diesem Sinne einem oder mehreren Wicklungs- enden 6 zugeordnet sein.The commutator 3 is configured as a hook commutator and has commutator blades 4 and commutator hooks 5 for the winding ends 6 of the rotor winding 2. The term "winding ends" is to be understood here broadly and, in addition to winding ends in the narrower sense, fundamentally also includes winding starts A commutator hook 5 can in this sense be associated with one or more winding ends 6.
Die Wicklungsenden 6 sind hier mit den Hakeninnenseiten 7, 8 der jeweiligen Kommutatorhaken 5 im Wege des Heißverstemmens verbunden. Bis hierhin entspricht der Aufbau des Rotors dem bekannten Stand der Technik.The winding ends 6 are here connected to the hook inner sides 7, 8 of the respective commutator hooks 5 by means of hot caulking. Up to this point, the structure of the rotor corresponds to the known prior art.
Vorschlagsgemäß ist es nun so, dass jeweils mindestens eine Hakeninnenseite 7, 8 der Kommutatorhaken 5 eine Oberflächenstruktur aufweist, die beim Eingriff mit dem jeweiligen Wicklungsende 6 Punkt- und/oder Linienbelastungen auf das Wicklungsende 6 und damit eine gezielte Verletzung, insbesondere eine Beseiti- gung der Isolierung des Wicklungsendes 6 bewirkt.According to the proposal, it is now so that in each case at least one hook inner side 7, 8 of the commutator 5 has a surface structure, the point 6 and / or line loads on the winding end 6 and thus a targeted injury, in particular a removal when engaging with the respective winding end the insulation of the winding end 6 causes.
Ganz allgemein lässt sich die obige Oberflächenstruktur dadurch realisieren, dass mindestens eine konvexe und/oder konkave Ausformung vorgesehen ist bzw. sind. Besonders bevorzugte Varianten hierzu sind in Fig. 2 gezeigt. Besonders gute Ergebnisse für das Lösen der Isolierung lassen sich dadurch erreichen, dass mindestens eine Hakeninnenseite 7, 8 eine Oberflächenstruktur mit mindestens einer in Richtung des jeweiligen Wicklungsendes 6 vorstehenden Kante 9 und/oder mit mindestens einer in Richtung des jeweiligen Wicklungsen- des 6 vorstehenden Spitze 10 aufweist. Die Kante 9 verläuft im Bereich der Hakeninnenseiten 7, 8 vorzugsweise im Wesentlichen senkrecht zu der Erstreckung des jeweiligen Wicklungsendes 6. Fig. 2a) zeigt die Ausgestaltung mit einer einzigen Kante 9. Bei der in Fig. 2b) dargestellten Ausgestaltung dagegen sind mehrere, parallel zueinander verlaufende Kanten 9 vorgesehen.In general, the above surface structure can be realized in that at least one convex and / or concave shape is or are provided. Particularly preferred variants for this purpose are shown in FIG. 2. Particularly good results for the release of the insulation can be achieved in that at least one hook inner side 7, 8 has a surface structure with at least one in the direction of the respective winding end 6 projecting edge 9 and / or at least one in the direction of the respective Wicklungsen- of 6 protruding tip 10 has. The edge 9 extends in the region of the hook inner sides 7, 8 preferably substantially perpendicular to the extent of the respective winding end 6. Fig. 2a) shows the embodiment with a single edge 9. In the embodiment shown in Fig. 2b), however, are several, parallel mutually extending edges 9 are provided.
Denkbar ist aber auch, dass die in Rede stehende Oberflächenstruktur der mindestens einen Hakeninnenseite 7, 8 ein periodisch wiederkehrendes Flächenmuster aufweist. Ein Beispiel hierfür ist die Ausgestaltung der Oberflächenstruktur nach Art einer Rändelung. Dies ist beispielhaft in Fig. 2d) dargestellt.However, it is also conceivable that the surface structure in question of the at least one hook inner side 7, 8 has a periodically recurring surface pattern. An example of this is the design of the surface structure in the manner of a knurling. This is exemplified in Fig. 2d).
Fig. 2c) zeigt eine Oberflächenstruktur der mindestens einen Hakeninnenseite 7, 8 mit einer einzigen konkaven Ausformung, die seitlich jeweils eine Kante 9 ausbildet. Hier können grundsätzlich auch mehrere konkave Ausformungen vorgesehen sein. Wesentlich ist. dass sich die konkave Ausformung bzw. die konka- ven Ausformungen hier und vorzugsweise kanalartig im Wesentlichen senkrecht zu der Erstreckungsrichtung des jeweiligen Wicklungsendes 6 erstreckt bzw. erstrecken.Fig. 2c) shows a surface structure of the at least one hook inner side 7, 8 with a single concave shape, which laterally forms an edge 9, respectively. Here, in principle, a plurality of concave formations may be provided. It is essential. that the concave formation or the concave formations extend and / or extend here in a channel-like manner substantially perpendicular to the extension direction of the respective winding end 6.
Denkbar ist schließlich, dass mindestens eine Hakeninnenseite 7, 8 eine Oberflä- chenstruktur mit erhöhter Rauhigkeit aufweist. Auch hiermit lassen sich erhöhte Punktbelastungen erzeugen, wobei die jeweiligen Belastungspunkte eben sehr nah beieinander liegen.Finally, it is conceivable that at least one hook inner side 7, 8 has a surface structure with increased roughness. Hereby too, increased point loads can be generated, with the respective load points lying very close to each other.
Nach einer weiteren Lehre, der eigenständige Bedeutung zukommt, wird ein Elektromotor mit dem obigen Rotor beansprucht. Auf die Ausführungen zu dem vorschlagsgemäßen Rotor darf in vollem Umfange verwiesen werden.According to another teaching, which has independent significance, an electric motor with the above rotor is claimed. Reference may be made in full to the comments on the proposed rotor.
Nach einer weiteren Lehre, der ebenfalls eigenständige Bedeutung zukommt, wird ein Verfahren zum Herstellen des obigen Rotors beansprucht. Wesentlich ist dabei die Tatsache, dass die oben beschriebene Verletzung der Isolierung derAccording to another teaching, which also has independent significance, a method for producing the above rotor is claimed. It is essential that the above described breach of the isolation of the
Wicklungsenden 6 vor und/oder während des Heißverstemmens der Wicklungs- enden 6 mit den Hakeninnenseiten 7, 8 des jeweiligen Kommutatorhakens 5 erfolgt.Winding ends 6 before and / or during the hot caulking of the winding ends 6 with the hook inner sides 7, 8 of the respective Kommutatorhakens 5 takes place.
Es lässt sich der obigen Darstellung entnehmen, dass das Lösen der Isolierung von den Wicklungsenden 6 vorschlagsgemäß auf einfache Weise und mit geringem Energieaufwand realisiert ist. Dadurch, dass bei geeigneter Auslegung ein zuverlässiges Lösen der Isolierung zumindest zu einem gewissen Teil vor dem Heißverstemmen realisierbar ist, lässt sich der für das Heißverstemmen erforderliche Energieaufwand ganz erheblich reduzieren. Vorteilhaft ist ferner, dass die Verletzung der Isolierung nur dort erfolgt, wo dies unbedingt erforderlich ist, nämlich im unmittelbaren Bereich der Hakeninnenseiten 7, 8. Damit besteht nicht die Gefahr eines Kurzschlusses zwischen den Wicklungsenden 6 zweier benachbarter Kommutatorlamellen 4, so dass die Abstände zwischen den Kommutatorlamellen 4 gering gehalten werden können. Dadurch baut der resultieren- de Kommutator insgesamt klein. Auf aufwendige Richtvorgänge nach dem Heißverstemmen, die dazu dienen, hinreichend große Abstände zwischen den Kommutatorlamellen sicherzustellen, kann verzichtet werden.It can be seen from the above illustration that the release of the insulation of the winding ends 6 is proposed according realized in a simple manner and with low energy consumption. Due to the fact that, with a suitable design, a reliable release of the insulation can be realized, at least to a certain extent, before the hot caulking, the energy expenditure required for hot caulking can be considerably reduced. A further advantage is that the injury to the insulation takes place only where this is absolutely necessary, namely in the immediate area of the hook inner sides 7, 8. Thus there is no danger of a short circuit between the winding ends 6 of two adjacent commutator bars 4, so that the distances between the commutator bars 4 can be kept low. As a result, the resulting commutator as a whole builds small. On elaborate straightening processes after hot caulking, which serve to ensure sufficiently large distances between the commutator, can be dispensed with.
Schließlich lässt sich mit der vorschlagsgemäßen Lösung der Übergangswider- stand zwischen den Wicklungsenden 6 und den Kommutatorhaken 5 reduzieren, und zwar unabhängig von Schwankungen in der Dicke einer Lackisolierung oder von einer gegebenenfalls auftretenden Oxidati on der Hakeninnenseiten 7, 8. Finally, with the proposed solution, the contact resistance between the coil ends 6 and the commutator hooks 5 can be reduced, regardless of fluctuations in the thickness of a lacquer insulation or of an optionally occurring oxidation of the hook inner sides 7, 8.
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010900009463U CN203014130U (en) | 2009-06-08 | 2010-05-28 | Rotor for electric motor and electric motor with the rotor |
| KR2020127000001U KR200472245Y1 (en) | 2009-06-08 | 2010-05-28 | Rotor for electric motor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009024507.3 | 2009-06-08 | ||
| DE102009024507A DE102009024507A1 (en) | 2009-06-08 | 2009-06-08 | Rotor for an electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2010142387A2 true WO2010142387A2 (en) | 2010-12-16 |
| WO2010142387A3 WO2010142387A3 (en) | 2011-09-15 |
Family
ID=43049295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2010/003259 Ceased WO2010142387A2 (en) | 2009-06-08 | 2010-05-28 | Rotor for an electric motor |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR200472245Y1 (en) |
| CN (1) | CN203014130U (en) |
| DE (2) | DE102009024507A1 (en) |
| WO (1) | WO2010142387A2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931557B (en) * | 2011-08-09 | 2016-11-16 | 德昌电机(深圳)有限公司 | Commutator and its preparation method |
| DE102013220102A1 (en) * | 2013-10-02 | 2015-04-23 | Robert Bosch Gmbh | Electric machine and method for producing an electrical and mechanical connection between a rotor winding of a rotor of an electrical machine and a commutator |
| KR102233276B1 (en) | 2014-01-06 | 2021-03-29 | 엘지이노텍 주식회사 | Commutator of motor and Motor having the same |
| ITUB20160001A1 (en) * | 2016-01-29 | 2017-07-29 | Nidec Sole Motor Corp S R L | ROTOR FOR UNIVERSAL ELECTRIC MOTOR AND PROCEDURE FOR THE REALIZATION OF THE SAME |
| IT201900003375A1 (en) * | 2019-03-08 | 2020-09-08 | Nidec Sole Motor Corp S R L | ROTOR FOR UNIVERSAL ELECTRIC MOTOR AND RELATED PROCEDURE AND EQUIPMENT FOR ITS REALIZATION |
| DE102021210158A1 (en) | 2021-09-14 | 2023-03-16 | Volkswagen Aktiengesellschaft | DC motor |
| KR20240084245A (en) | 2022-12-06 | 2024-06-13 | 동경주 | Mineral water bottle having holder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990004864A1 (en) | 1988-10-21 | 1990-05-03 | Stapla Ultraschall-Technik Gmbh | Process and device for connecting armature winding wires to the laminae of a hook collector |
| DE10042512A1 (en) | 2000-08-30 | 2002-03-28 | Bosch Gmbh Robert | hook commutator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59107574U (en) * | 1982-12-29 | 1984-07-19 | マブチモ−タ−株式会社 | Commutator device for small motors |
| FR2801740A1 (en) * | 1999-11-29 | 2001-06-01 | Valeo Systemes Dessuyage | Armature commutator for electric motor includes contact strips with hooked ends for retaining ends of winding wires |
-
2009
- 2009-06-08 DE DE102009024507A patent/DE102009024507A1/en not_active Withdrawn
- 2009-06-08 DE DE202009018610U patent/DE202009018610U1/en not_active Expired - Lifetime
-
2010
- 2010-05-28 KR KR2020127000001U patent/KR200472245Y1/en not_active Expired - Fee Related
- 2010-05-28 CN CN2010900009463U patent/CN203014130U/en not_active Expired - Lifetime
- 2010-05-28 WO PCT/EP2010/003259 patent/WO2010142387A2/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990004864A1 (en) | 1988-10-21 | 1990-05-03 | Stapla Ultraschall-Technik Gmbh | Process and device for connecting armature winding wires to the laminae of a hook collector |
| DE10042512A1 (en) | 2000-08-30 | 2002-03-28 | Bosch Gmbh Robert | hook commutator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203014130U (en) | 2013-06-19 |
| KR20120002688U (en) | 2012-04-19 |
| DE202009018610U1 (en) | 2012-10-08 |
| WO2010142387A3 (en) | 2011-09-15 |
| KR200472245Y1 (en) | 2014-04-15 |
| DE102009024507A1 (en) | 2010-12-09 |
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