DE20315609U1 - Electric motor has shaft carrying two elements and forming permanent magnetic circuit opened or closed depending on relative positions of two elements - Google Patents
Electric motor has shaft carrying two elements and forming permanent magnetic circuit opened or closed depending on relative positions of two elements Download PDFInfo
- Publication number
- DE20315609U1 DE20315609U1 DE20315609U DE20315609U DE20315609U1 DE 20315609 U1 DE20315609 U1 DE 20315609U1 DE 20315609 U DE20315609 U DE 20315609U DE 20315609 U DE20315609 U DE 20315609U DE 20315609 U1 DE20315609 U1 DE 20315609U1
- Authority
- DE
- Germany
- Prior art keywords
- elements
- electric motor
- magnetic circuit
- relative positions
- permanent magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/106—Structural association with clutches, brakes, gears, pulleys or mechanical starters with dynamo-electric brakes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Die Erfindung betrifft einen Elektromotor mit Gehäuse und Abtriebswelle.The invention relates to an electric motor with housing and output shaft.
Elektromotoren werden nicht nur für mehr oder weniger kontinuierliche Bewegungen, sondern oft auch zum exakten Positionieren benötigt. Wichtig dabei ist, daß nach Erreichen der geforderten Position und dem damit verbundenen Abschalten des Motors die Position auch gehalten wird. Bekannte Lösungen hierfür sind Ruhestrombremsen mit einer dafür erforderlichen separaten Ansteuerung oder auch die Ausnutzung vorhandener interner Rastkräfte des Motors.Electric motors are not just for more or less continuous movements, but often also for exact Positioning needed. It is important that after Reaching the required position and the associated shutdown the motor's position is also held. Known solutions for this are closed-circuit brakes with one for it required separate control or the use of existing internal locking forces of the motor.
Einerseits sind separate Bremsen mit separaten Ansteuerungen unerwünscht, andererseits sind die vorhandenen internen Rastkräfte des Motors oft nicht ausreichend.On the one hand there are separate brakes with separate controls undesirable, on the other hand they are existing internal locking forces of the engine is often insufficient.
Der Erfindung liegt die Aufgabe zugrunde, hier Abhilfe zu schaffen.The invention is based on the object here To remedy the situation.
Diese Aufgabe wird erfindungsgemäß gelöst durch einen Elektromotor mit Gehäuse und Abtriebswelle nach der Lehre des Anspruchs 1.According to the invention, this object is achieved by an electric motor with housing and output shaft according to the teaching of claim 1.
Es werden demnach zusätzliche Elemente angebracht, die die internen Rastkräfte des Motors ergänzen oder solche ersetzen, auf jeden Fall aber gezielt einstellbar machen.So there will be additional ones Elements attached that complement the internal locking forces of the engine or replace them, but in any case make them selectively adjustable.
Weitere Ausgestaltungen der Erfindung sind den Unteransprüchen und der nachfolgenden Beschreibung zu entnehmen.Further refinements of the invention are the dependent claims and the following description.
Im folgenden wird die Erfindung unter Zuhilfenahme der beiliegenden Zeichnungen weiter erläutert:The invention is described below With the help of the accompanying drawings further explained:
Vom Motorteil
Die Rastkraftbremse
Die Abtriebswelle
Der Zylinder
In der
Es wäre auch möglich, den Zylinder selbst als
Permanentmagnet auszubilden. Die magnetischen Eigenschaften könnten hierbei
jedoch weniger genau eingestellt werden. Auch die Ausbildung des zweiten,
nicht rotierenden Elements als Permanentmagnet, etwa durch Ausbildung
der Polschuhe
Wie beim Motorteil
Die Wirkung der Rastkraftbremse läßt sich auf
vielfältige
Weise einstellen, etwa durch die Dicke der Luftspalte zwischen den
Permanentmagneten
Eine Anordnung der Rastkraftbremse innerhalb des Motors ist grundsätzlich ebenso möglich. Das erste, mitrotierende Element ist dann so wie der Rotor des Motors, das zweite, nicht mitrotierende Element wie der Stator des Motors ausgebildet. Durch die Trennung der magnetischen Kreise von Rotor und Stator einerseits und Rastkraftbremse andererseits erhöhen sich die Freiheitsgrade bei der Dimensionierung und auch bei der Fertigung.An arrangement of the locking force brake is fundamental within the engine also possible. The first, co-rotating element is like the rotor of the motor, the second, non-rotating element like the stator of the motor educated. By separating the magnetic circuits from the rotor and stator on the one hand and locking force brake on the other hand increase the degrees of freedom in dimensioning and also in manufacturing.
Der Verlauf des Drehmoments der Rastkraftbremse hat einen sägezahnförmigen Verlauf mit einem Abstand der Flanken, Spitzen und Nullstellen von 180°. Eine der beiden Flanken ist sehr steil, die andere entsprechend flach.The course of the torque of the detent force brake has a sawtooth course with egg distance of the flanks, peaks and zeros of 180 °. One of the two flanks is very steep, the other flat.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20315609U DE20315609U1 (en) | 2003-10-06 | 2003-10-06 | Electric motor has shaft carrying two elements and forming permanent magnetic circuit opened or closed depending on relative positions of two elements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20315609U DE20315609U1 (en) | 2003-10-06 | 2003-10-06 | Electric motor has shaft carrying two elements and forming permanent magnetic circuit opened or closed depending on relative positions of two elements |
Publications (1)
Publication Number | Publication Date |
---|---|
DE20315609U1 true DE20315609U1 (en) | 2003-12-11 |
Family
ID=29762511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE20315609U Expired - Lifetime DE20315609U1 (en) | 2003-10-06 | 2003-10-06 | Electric motor has shaft carrying two elements and forming permanent magnetic circuit opened or closed depending on relative positions of two elements |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE20315609U1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004014986A1 (en) * | 2004-03-26 | 2005-11-10 | Minebea Co., Ltd. | Electric motor e.g. permanent magnet motor, has short circuit device with magnetic short-circuit sheet plate moved in relation to magnetic assembly, where rest moment of device is adjusted by plate size and distance of plate to assembly |
DE102009035894A1 (en) * | 2009-08-03 | 2011-02-10 | Wittenstein Ag | Machine for fixing |
FR3035279A1 (en) * | 2015-04-17 | 2016-10-21 | Moteurs Leroy-Somer | MAGNETIC BRAKE FOR ELECTRIC MACHINE |
FR3065594A1 (en) * | 2017-04-25 | 2018-10-26 | Unicum Transmission De Puissance | MOTOREDUCER WITH MAGNETIC BRAKE |
EP3139487B1 (en) | 2015-08-25 | 2020-06-24 | Selni | Braking system and method for braking an electric motor |
-
2003
- 2003-10-06 DE DE20315609U patent/DE20315609U1/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004014986A1 (en) * | 2004-03-26 | 2005-11-10 | Minebea Co., Ltd. | Electric motor e.g. permanent magnet motor, has short circuit device with magnetic short-circuit sheet plate moved in relation to magnetic assembly, where rest moment of device is adjusted by plate size and distance of plate to assembly |
DE102009035894A1 (en) * | 2009-08-03 | 2011-02-10 | Wittenstein Ag | Machine for fixing |
EP2284977A3 (en) * | 2009-08-03 | 2013-12-25 | Wittenstein AG | Machine for fixing |
FR3035279A1 (en) * | 2015-04-17 | 2016-10-21 | Moteurs Leroy-Somer | MAGNETIC BRAKE FOR ELECTRIC MACHINE |
EP3139487B1 (en) | 2015-08-25 | 2020-06-24 | Selni | Braking system and method for braking an electric motor |
FR3065594A1 (en) * | 2017-04-25 | 2018-10-26 | Unicum Transmission De Puissance | MOTOREDUCER WITH MAGNETIC BRAKE |
EP3396817A1 (en) * | 2017-04-25 | 2018-10-31 | Unicum Transmission de Puissance | Gear motor with magnetic brake |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20040122 |
|
R163 | Identified publications notified |
Effective date: 20040730 |
|
R150 | Term of protection extended to 6 years |
Effective date: 20061113 |
|
R151 | Term of protection extended to 8 years |
Effective date: 20100121 |
|
R081 | Change of applicant/patentee |
Owner name: DUNKERMOTOREN GMBH, DE Free format text: FORMER OWNER: ALCATEL, PARIS, FR Effective date: 20100209 |
|
R152 | Term of protection extended to 10 years | ||
R152 | Term of protection extended to 10 years |
Effective date: 20120111 |
|
R071 | Expiry of right | ||
R071 | Expiry of right |