DE3008937A1 - Salient pole stator and slotted rotor machine - has interpolar and slot opening filling strips to give cylindrical surfaces to reduce windage noise - Google Patents

Salient pole stator and slotted rotor machine - has interpolar and slot opening filling strips to give cylindrical surfaces to reduce windage noise

Info

Publication number
DE3008937A1
DE3008937A1 DE19803008937 DE3008937A DE3008937A1 DE 3008937 A1 DE3008937 A1 DE 3008937A1 DE 19803008937 DE19803008937 DE 19803008937 DE 3008937 A DE3008937 A DE 3008937A DE 3008937 A1 DE3008937 A1 DE 3008937A1
Authority
DE
Germany
Prior art keywords
stator
cylindrical surfaces
rotor
pole
salient pole
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.)
Granted
Application number
DE19803008937
Other languages
German (de)
Other versions
DE3008937C2 (en
Inventor
Manfred Dipl.-Ing. Altmann
Reinhold 2900 Oldenburg Schütte
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.)
FHP Motors GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19803008937 priority Critical patent/DE3008937A1/en
Publication of DE3008937A1 publication Critical patent/DE3008937A1/en
Application granted granted Critical
Publication of DE3008937C2 publication Critical patent/DE3008937C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/48—Fastening of windings on the stator or rotor structure in slots
    • H02K3/487—Slot-closing devices
    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/12—Machines characterised by means for reducing windage losses or windage noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

The motor is for domestic equipment, e.g. washing machines. Where salient pole machines are used, typically commutator motors, the interaction between the space between stator poles and the armature slot openings can give rise to considerable windage noise where the fundamental frequency is proportional to speed. To assist in suppressing the component of noise it is desirable to have smooth, cylindrical surfaces on stator and rotor. In order to achieve the required surface, the space between pole shoes is closed by fitting non-metallic plates between the pole tips. The plates are profiled to continue the contour of the pole face. Similarly the armature slots are closed with wedges whose profile is such that they extend to the armature periphery. The wedges preferably leave a minimum gap between the sides and the tooth tips.

Description

Beschreibung:Description:

Die Erfindung bezieht sich auf einen Kollektormotor zum Antrieb von Hausgeräten gemaß dem Oberbegriff des Anspruches 1.The invention relates to a commutator motor for driving Household appliances according to the preamble of claim 1.

Derartige Antriebseinrichtungen sind allgemein bekannt. Dabei ermöglichen die offenen Nuten und Pollücken die problemlose Einbringung der Wicklung in das Blechpaket. Es erweist sich dabei als nachteilig, daß infolge hoher Umfangsgeschwindigkeiten des Läufers lästige Luftgeräusche entstehen.Such drive devices are generally known. Make it possible the open slots and pole gaps the problem-free introduction of the winding into the Laminated core. It proves to be disadvantageous that as a result of high peripheral speeds the runner creates annoying air noises.

Der Erfindung liegt die Aufgabe zugrunde, einen Kollektormotor zu schaffen, bei welchem lästige Luftgeräusche, die zu Kundenbeanstandungen führen, vermieden werden.The invention is based on the object of a commutator motor create, in which annoying air noises that lead to customer complaints, be avoided.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst, wobei in vorteilhafter Weise durch Einfügung von an sich bekannten VerschluBmitteln in die Nuten und Pollücken des Kollektormotors der Luftwiderstand an den Umfangsflächen auf ein Mindestmaß reduziert wird.According to the invention, this object is achieved by the characterizing features of claim 1 solved, advantageously by inserting per se known locking means in the grooves and pole gaps of the collector motor of the air resistance is reduced to a minimum on the peripheral surfaces.

Nach weiteren vorteilhaften Ausgestaltungen der Erfindung bestehen die Verschlußmittel aus scharfkantig geformten Folienteilen, welche sich formschlüssig in die Nuten einfügen lassen und dabei gleichzeitig als Halteelemente die Kupferwicklung im Läufer festlegen.According to further advantageous embodiments of the invention exist the closure means made of sharp-edged foil parts, which are form-fitting Can be inserted into the grooves and at the same time the copper winding as a holding element set in the runner.

Ein weiteres vorteilhaftes Merkmal der Erfindung ist der bündige Abschluß der Verschlußmittel mit der Umfangsfläche, so daß dadurch eine glatte, lückenlose Fläche entsteht, die die Bildung von Luftgeräuschen mit der Frequenz=Nuten -zahl x Umdrehungsfrequenz verhindert.Another advantageous feature of the invention is the flush finish the closure means with the circumferential surface, so that thereby a smooth, gapless Surface arises that the formation of air noises with the frequency = number of grooves x rotation frequency prevented.

Die Erfindung ist anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles beschrieben.The invention is based on an embodiment shown in the drawings described.

Es zeigen Fig. 1 einen Querschnitt eines Kollektormotors, Fig. 2 in vergrößertem Maßstab einen Querschnitt einer Nut im Läufer des Kollektormotors.1 shows a cross section of a commutator motor, FIG. 2 in FIG enlarged scale a cross section of a groove in the rotor of the commutator motor.

In Fig. 1 ist der Kollektormotor mit dem Ständer 2 und dem Läufer 3 dargestellt. Im Ständer 2 befindet sich die Wicklung 4 und im Läufer 3 die Wicklung 5. Die Umfangsfläche 6 des Ständers 2 ist durch Pollücken 7a,7b unterbrochen. Die Umfangsfläche 8 des Läufers 3 ist durch Nutschlitze 9 der Nuten 10 unterbrochen. Verschlußmittel 11 sind in die Pollücken 7a,7b und in die Nutschlitze 9 eingefügt, so daß eine nicht mehr unterbrochene, glatte Umfangsfläche 6,8 am Ständer 2 und am Läufer 3 des Kollektormotors 1 entsteht.In Fig. 1 is the commutator motor with the stator 2 and the rotor 3 shown. The winding 4 is located in the stator 2 and the winding is located in the rotor 3 5. The circumferential surface 6 of the stator 2 is interrupted by pole gaps 7a, 7b. the The circumferential surface 8 of the rotor 3 is interrupted by slot slots 9 of the slots 10. Closure means 11 are inserted into the pole gaps 7a, 7b and into the slot 9, so that a no longer interrupted, smooth circumferential surface 6.8 on the stand 2 and arises on the rotor 3 of the collector motor 1.

Durch das in Fig. 2 mit der UmfanEsiläche 8 bündig abschließende Verschlußmittel 11, welches als scharfkantig geformtes Folienteil 12 ausgebildet ist, wird außer der ausgeübten Haltewirkung auf die Wicklung 5 in der Nut 10 im Läufer 3 eine glatte, lückenlose Umfangsfläche 8 erzielt.By the closure means which is flush with the peripheral surface 8 in FIG 11, which is designed as a sharp-edged shaped film part 12, is except the holding effect exerted on the winding 5 in the slot 10 in the rotor 3 is a smooth, seamless circumferential surface 8 achieved.

Das Verschlußmittel 11 in der Fig. 1 kann vorteilhaft mit seinen Rändern 15 formschlüssig die abgerundeten Spitzen der Polhörner 16 umfassen.The closure means 11 in FIG. 1 can advantageously with its edges 15 encompass the rounded tips of the polar horns 16 in a form-fitting manner.

LeerseiteBlank page

Claims (4)

Titel: Kollektormotor zum Antrieb von Hausgeräten Patentansprüche: C Kollektormotor zum Antrieb von Hausgeräten, insbesondere von Waschgeräten, mit Pollücken aufweisendem Ständer und Nuten aufweisendem Läufer, d a d u r c h g e k e n n z e i c h -n e t , daß die Pollücken (7a,7b) des Ständers (2) und die Nutschlitze (9) des Läufers (3) mit Verschlußmitteln (11) geschlossen sind, welche gemeinsam mit den Polen (13) bzw. den Zähnen (14) geschlossene und glatte, zylindrische Mantelflächen (6,8) bilden.Title: Collector motor for driving household appliances Patent claims: C Collector motor for driving household appliances, in particular washing appliances, with Stator having pole gaps and rotor having grooves, d a d u r c h g e k e n n z e i c h -n e t that the pole gaps (7a, 7b) of the stator (2) and the slot slots (9) of the rotor (3) with closure means (11) are closed, which together with the poles (13) or the teeth (14) closed and smooth, cylindrical outer surfaces (6,8) form. 2. Motor nach Anspruch 1 , d a d u r c h g e k e n n -z e i c h n e t , daß die Verschlußmittel (11) aus scharfkantig geformten Folienteilen (12) bestehen. 2. Motor according to claim 1, d a d u r c h g e k e n n -z e i c h n e t that the closure means (11) made of sharp-edged shaped foil parts (12) exist. 3. Motor nach Anspruch 1 oder 2, d a d u r c h g e k e n n -z e i c h n e t , daß die Verschlußmittel (11) als Halteelemente für die im Läufer (3) eingebettete Wicklung (5) ausgebildet sind. 3. Motor according to claim 1 or 2, d a d u r c h g e k e n n -z e i c h n e t that the closure means (11) as holding elements for the rotor (3) embedded winding (5) are formed. 4. Motor nach Anspruch 1 bis 3, d a d u r c h g e k e n n -z e i c h n e t , daß die Verschlumittel (11) mit der Umfangsfläche (6,8) bündig abschlieMen. 4. Motor according to claim 1 to 3, d a d u r c h g e k e n n -z e i c h n e t that the sealing means (11) terminate flush with the peripheral surface (6, 8).
DE19803008937 1980-03-08 1980-03-08 Salient pole stator and slotted rotor machine - has interpolar and slot opening filling strips to give cylindrical surfaces to reduce windage noise Granted DE3008937A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803008937 DE3008937A1 (en) 1980-03-08 1980-03-08 Salient pole stator and slotted rotor machine - has interpolar and slot opening filling strips to give cylindrical surfaces to reduce windage noise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803008937 DE3008937A1 (en) 1980-03-08 1980-03-08 Salient pole stator and slotted rotor machine - has interpolar and slot opening filling strips to give cylindrical surfaces to reduce windage noise

Publications (2)

Publication Number Publication Date
DE3008937A1 true DE3008937A1 (en) 1981-09-24
DE3008937C2 DE3008937C2 (en) 1987-03-26

Family

ID=6096611

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803008937 Granted DE3008937A1 (en) 1980-03-08 1980-03-08 Salient pole stator and slotted rotor machine - has interpolar and slot opening filling strips to give cylindrical surfaces to reduce windage noise

Country Status (1)

Country Link
DE (1) DE3008937A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632646A1 (en) * 1986-09-25 1988-03-31 Licentia Gmbh COVER FOR POLLUECK
EP0386287A1 (en) * 1989-03-07 1990-09-12 Siemens Aktiengesellschaft D.C. machine with main and commutating poles
EP0601818A1 (en) * 1992-12-10 1994-06-15 Switched Reluctance Drives Ltd Switched reluctance motors
WO1998015049A2 (en) * 1996-10-01 1998-04-09 Emerson Electric Co. Reduced noise reluctance machine
EP0930694A3 (en) * 1998-01-20 1999-09-08 Switched Reluctance Drives Limited Noise reduction in reluctance machines
DE19835044A1 (en) * 1998-08-04 2000-02-10 Fhp Motors Gmbh Rotor for commutator motor for driving household appliances especially washing machines
US6093993A (en) * 1998-05-14 2000-07-25 Switched Relutance Drives Limited Set of laminations for a switched reluctance machine
DE19906884A1 (en) * 1999-02-19 2000-08-24 Mannesmann Vdo Ag Electric motor
US20140010642A1 (en) * 2009-12-14 2014-01-09 Nidec Motor Corporation Low noise stator of an electric motor or generator and method of assembling the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905997A1 (en) * 1989-02-25 1990-08-30 Licentia Gmbh Reluctance motor supplied from an electronic power converter
DE102010042175A1 (en) 2010-10-07 2012-04-26 BSH Bosch und Siemens Hausgeräte GmbH Electrical machine has armature with slot wedges having shape corresponding to profile shape of armature winding and consists of heat well-conducting material in remaining space of groove
DE102020130123A1 (en) 2020-11-16 2022-05-19 Bayerische Motoren Werke Aktiengesellschaft Electrically excited synchronous machine with reduced aerodynamic drag and motor vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3083310A (en) * 1960-03-11 1963-03-26 Controls Co Of America Electric motor having a permanent magnet stator
DE2552896A1 (en) * 1974-11-27 1976-08-12 Allis Chalmers GROOVE LOCKING FOR DYNAMOELECTRIC MACHINERY
DE2555529A1 (en) * 1975-12-10 1977-06-16 Rau Swf Autozubehoer ANCHOR FOR A MOTOR IN A LIQUID PUMP

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3083310A (en) * 1960-03-11 1963-03-26 Controls Co Of America Electric motor having a permanent magnet stator
DE2552896A1 (en) * 1974-11-27 1976-08-12 Allis Chalmers GROOVE LOCKING FOR DYNAMOELECTRIC MACHINERY
DE2555529A1 (en) * 1975-12-10 1977-06-16 Rau Swf Autozubehoer ANCHOR FOR A MOTOR IN A LIQUID PUMP

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Z.: Der Elektromeister 1968, H.2, S.59-62 u. H.3, S.111,112 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632646A1 (en) * 1986-09-25 1988-03-31 Licentia Gmbh COVER FOR POLLUECK
EP0386287A1 (en) * 1989-03-07 1990-09-12 Siemens Aktiengesellschaft D.C. machine with main and commutating poles
EP0601818A1 (en) * 1992-12-10 1994-06-15 Switched Reluctance Drives Ltd Switched reluctance motors
US5548173A (en) * 1992-12-10 1996-08-20 Switched Reluctance Drives Limited Switched reluctance motors
US5877572A (en) * 1996-10-01 1999-03-02 Emerson Electric Co. Reduced noise reluctance machine
WO1998015049A3 (en) * 1996-10-01 1998-08-06 Emerson Electric Co Reduced noise reluctance machine
WO1998015049A2 (en) * 1996-10-01 1998-04-09 Emerson Electric Co. Reduced noise reluctance machine
EP0930694A3 (en) * 1998-01-20 1999-09-08 Switched Reluctance Drives Limited Noise reduction in reluctance machines
US6072260A (en) * 1998-01-20 2000-06-06 Switched Reluctance Drives Limited Noise reduction in reluctance machines
US6093993A (en) * 1998-05-14 2000-07-25 Switched Relutance Drives Limited Set of laminations for a switched reluctance machine
DE19835044A1 (en) * 1998-08-04 2000-02-10 Fhp Motors Gmbh Rotor for commutator motor for driving household appliances especially washing machines
DE19906884A1 (en) * 1999-02-19 2000-08-24 Mannesmann Vdo Ag Electric motor
US6548930B1 (en) 1999-02-19 2003-04-15 Mannesmann Vdo Ag Electric motor
US20140010642A1 (en) * 2009-12-14 2014-01-09 Nidec Motor Corporation Low noise stator of an electric motor or generator and method of assembling the same

Also Published As

Publication number Publication date
DE3008937C2 (en) 1987-03-26

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8363 Opposition against the patent
8380 Miscellaneous part iii

Free format text: SPALTE 1, ZEILEN 32 UND 61 "1986" AENDERN IN "1968"

8320 Willingness to grant licences declared (paragraph 23)
8365 Fully valid after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: FHP MOTORS GMBH, 26133 OLDENBURG, DE