DE7015880U - PERMANENT MAGNET RUNNER FOR A SMALL MOTOR. - Google Patents
PERMANENT MAGNET RUNNER FOR A SMALL MOTOR.Info
- Publication number
- DE7015880U DE7015880U DE19707015880 DE7015880U DE7015880U DE 7015880 U DE7015880 U DE 7015880U DE 19707015880 DE19707015880 DE 19707015880 DE 7015880 U DE7015880 U DE 7015880U DE 7015880 U DE7015880 U DE 7015880U
- Authority
- DE
- Germany
- Prior art keywords
- permanent magnet
- magnet
- carrier
- small motor
- magnet carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
- H02K1/2733—Annular magnets
-
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
Description
Die Neuerung bezieht sich auf einen Permanentmagnetläufer für einen Kleinstmotor, bei dem ein ringförmiger Permanentmagnet auf einem mit der Motorwelle verbundenen Magnetträger angeordnet ist. Für solche Läufer werden vielfach Permanentmagnete verhältnismäßig hoher Koerzitivkraft verwendet, die aber insbesondere in Form gesinterter Magnete spröde, d.h. mechanisch wenig widerstandsfähig sind.The innovation relates to a permanent magnet rotor for a miniature motor, in which an annular permanent magnet is arranged on a magnet carrier connected to the motor shaft. Permanent magnets are often used for such runners relatively high coercive force is used, but is brittle, especially in the form of sintered magnets, i.e. are mechanically not very resistant.
Bei Formänderungen des Magnetträgers durch Erwärmung oder auch durch Aufnahme von Luftfeuchtigkeit bei Magnetträgern aus Kunststoff können im jspröden Magnetmaterial feine Risse in axialer und radialer Richtung auftreten, die oftmals zu einem Zerbröckeln des Permanentmagneten führen können. Die einzelnen Bruchstücke können sich leicht vom Magnetträger lösen und den Motor unbrauchbar machen.In the event of changes in shape of the magnet carrier due to heating or also by absorbing humidity in plastic magnetic carriers In the brittle magnet material, fine cracks can appear in the axial and radial directions, which often lead to crumbling of the permanent magnet. The individual fragments can easily detach from the magnet carrier and the Make the engine unusable.
Aufgabe der Neuerung ist es, einen Permanentmagnetläufer der eingangs genannten A.rt zu schaffen, bei dem der Permanentmagnet auf einfache Weise so auf den Magnetträger angeordnet ist, daß er sich bei Rißbildungen nicht von dem Magnetträger lösen kann.The task of the innovation is to create a permanent magnet rotor of the type mentioned at the beginning, in which the permanent magnet is arranged in a simple manner on the magnet carrier that it cannot become detached from the magnet carrier when cracks form.
Nach der Neuerung gelingt die Lösung der gestellten Aufgabe dadurch, daß der Permanentmagnet auf jeder Stirnseite formschlüssig mit einem ringförmigen Halteteil des Magnetträgers verbunden ist. Eine besonders einfache Ausführungsform besteht nach einer weiteren Ausgestaltung der Neuerung darin, daß jede Stirnseite eine ringförmige Vertiefung aufweist, die das zugeordnete ringförmige Halteteil aufnimmt. Der Aufbau des ^ermanentmagnetläufers wird außerdem vereinfacht, wenn dieAccording to the innovation, the task at hand is achieved in that the permanent magnet is positively locked on each end face is connected to an annular holding part of the magnet carrier. There is a particularly simple embodiment according to a further embodiment of the innovation in that each end face has an annular recess which the associated annular holding part receives. The structure of the permanent magnet rotor is also simplified when the
- 2 - VPA 70/3079- 2 - VPA 70/3079
Halteteile am Magnetträger angeformt sind. Dies läßt sich dadurch erreichen.! daß man die Halteteile und den Magnetträger aus Xunststoff spritzt. Holding parts are formed on the magnet carrier. This can be achieved by doing this.! that the holding parts and the magnet carrier are injection molded from plastic.
Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels wird der Gegenstand der Neuerung nachfolgend näher erläutert.The subject of the innovation is explained in more detail below with the aid of an exemplary embodiment shown in the drawing explained.
Mit 1 ist ein ringförmiger Permanentmagnet bezeichnet, der auf einem mit einer Motorwelle 2 verbundenen Magnetträger 3 angeordnet ist. Auf den Stirnseiten 1a weist der Permanentmagnet 1 Vertiefungen 1b auf, in denen jeweils ein ringförmiges, mit dem Magnetträger 3 über einen Steg 4 verbundenes Halteteil 5 angeordnet ist. Durch die in den Vertiefungen angeordneten Halteteile wird der Permanentmagnet auch im Falle einer Rißbildung noch mechanisch zusammengehalten, so daß die Funktionsfähigkeit des Motors erhalten bleibt. 1 with an annular permanent magnet is referred to, which is arranged on a magnet carrier 3 connected to a motor shaft 2 is. On the end faces 1 a, the permanent magnet 1 has recesses 1 b, in each of which an annular, with The holding part 5 connected to the magnet carrier 3 via a web 4 is arranged. By the arranged in the recesses Holding parts, the permanent magnet is still mechanically held together even in the event of cracks forming, so that the functionality of the motor is maintained.
Die Form der Vertiefungen und der Halteteile ist nicht auf die dargestellte Rechteckform beschränkt. Die Vertiefungen können beispielsweise auch halbrund oder als Fase ausgeführt sein. Ferner besteht die Möglichkeit, auf den Stirnseiten einen Vorsprung vorzusehen, der von dem Halte teil umfaßt wird.The shape of the depressions and the holding parts is not limited to the rectangular shape shown. The wells can For example, it can also be designed as a semicircle or a bevel. There is also the possibility of a projection on the end faces to be provided, which is comprised of the holding part.
4 Schutzansprüche
1 Figur4 claims for protection
1 figure
Claims (2)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19707015880 DE7015880U (en) | 1970-04-28 | 1970-04-28 | PERMANENT MAGNET RUNNER FOR A SMALL MOTOR. |
| NL7103811A NL7103811A (en) | 1970-04-28 | 1971-03-22 | |
| CH586571A CH524913A (en) | 1970-04-28 | 1971-04-22 | Permanent magnet rotor for a miniature motor |
| FR7114827A FR2090738A7 (en) | 1970-04-28 | 1971-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19707015880 DE7015880U (en) | 1970-04-28 | 1970-04-28 | PERMANENT MAGNET RUNNER FOR A SMALL MOTOR. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE7015880U true DE7015880U (en) | 1970-08-06 |
Family
ID=6611268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19707015880 Expired DE7015880U (en) | 1970-04-28 | 1970-04-28 | PERMANENT MAGNET RUNNER FOR A SMALL MOTOR. |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH524913A (en) |
| DE (1) | DE7015880U (en) |
| FR (1) | FR2090738A7 (en) |
| NL (1) | NL7103811A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3308946A1 (en) * | 1983-03-12 | 1984-09-13 | Max Baermann GmbH, 5060 Bergisch Gladbach | Plastic-bonded, permanent-magnet rotor of hollow-cylindrical or pot-shaped design for electrical machines, especially small motors |
| ITUA20163067A1 (en) * | 2016-05-02 | 2017-11-02 | Meteor Sas Di Fabio Delloglio & C | ROTOR UNIT FOR ELECTROMECHANICAL COMPONENTS AND PROCEDURE FOR THE CONSTRUCTION OF THE ROTOR GROUP |
| EP3451501A1 (en) * | 2017-08-31 | 2019-03-06 | ebm-papst Mulfingen GmbH & Co. KG | Fastening system between a ring component and a rotor |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2644279C3 (en) * | 1976-09-30 | 1980-11-06 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Stand for a polyphase electric motor |
| DE2845702C2 (en) * | 1978-10-20 | 1983-01-20 | Nsm-Apparatebau Gmbh Kg, 6530 Bingen | Method for manufacturing a rotor for a small electric motor |
| DE3021607A1 (en) * | 1980-06-09 | 1981-12-17 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Permanent magnet rotor for electrical machines - esp. bicycle dynamo, using ferrite magnet which is either sintered or bonded with polymer, and is joined to stub axle |
| CH657727A5 (en) * | 1982-09-15 | 1986-09-15 | Sodeco Compteurs De Geneve | ROTOR FOR SYNCHRONOUS MOTORS. |
| DE10009151C2 (en) * | 2000-02-26 | 2002-02-07 | Bosch Gmbh Robert | Magnet holder or method for holding a magnet on a carrier element |
| DE10314394B4 (en) * | 2003-03-28 | 2007-02-01 | Siemens Ag | Rotor for a brushless DC motor and method for mounting such a rotor |
| DE102006036392A1 (en) * | 2006-03-31 | 2007-11-22 | Aweco Appliance Systems Gmbh & Co. Kg | Electric motor with rotor, rotor and method for producing a rotor for an electric motor |
-
1970
- 1970-04-28 DE DE19707015880 patent/DE7015880U/en not_active Expired
-
1971
- 1971-03-22 NL NL7103811A patent/NL7103811A/xx unknown
- 1971-04-22 CH CH586571A patent/CH524913A/en unknown
- 1971-04-26 FR FR7114827A patent/FR2090738A7/fr not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3308946A1 (en) * | 1983-03-12 | 1984-09-13 | Max Baermann GmbH, 5060 Bergisch Gladbach | Plastic-bonded, permanent-magnet rotor of hollow-cylindrical or pot-shaped design for electrical machines, especially small motors |
| ITUA20163067A1 (en) * | 2016-05-02 | 2017-11-02 | Meteor Sas Di Fabio Delloglio & C | ROTOR UNIT FOR ELECTROMECHANICAL COMPONENTS AND PROCEDURE FOR THE CONSTRUCTION OF THE ROTOR GROUP |
| EP3242378A1 (en) * | 2016-05-02 | 2017-11-08 | Meteor S.a.s. di Fabio Dell'Oglio & C. | Rotor group for electromechanical components and method for manufacturing said rotor group |
| US10601269B2 (en) | 2016-05-02 | 2020-03-24 | Meteor S.A.S. Di Fabio Dell'oglio & C. | Rotor group for electromechanical components and method for manufacturing said rotor group |
| EP3451501A1 (en) * | 2017-08-31 | 2019-03-06 | ebm-papst Mulfingen GmbH & Co. KG | Fastening system between a ring component and a rotor |
| US10935032B2 (en) | 2017-08-31 | 2021-03-02 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Mounting system between a ring member and a rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CH524913A (en) | 1972-06-30 |
| NL7103811A (en) | 1971-11-01 |
| FR2090738A7 (en) | 1972-01-14 |
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