DE202007007217U1 - Brushless motor for e.g. electric vehicle, has connector that is tilted such that rotor is drawn from connector so that air gap is changed, and spring unit pressing rotor in direction opposite to stator so that connector is stretched - Google Patents
Brushless motor for e.g. electric vehicle, has connector that is tilted such that rotor is drawn from connector so that air gap is changed, and spring unit pressing rotor in direction opposite to stator so that connector is stretched Download PDFInfo
- Publication number
- DE202007007217U1 DE202007007217U1 DE202007007217U DE202007007217U DE202007007217U1 DE 202007007217 U1 DE202007007217 U1 DE 202007007217U1 DE 202007007217 U DE202007007217 U DE 202007007217U DE 202007007217 U DE202007007217 U DE 202007007217U DE 202007007217 U1 DE202007007217 U1 DE 202007007217U1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- connector
- air gap
- output shaft
- stator
- 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
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
- H02K21/021—Means for mechanical adjustment of the excitation flux
- H02K21/022—Means for mechanical adjustment of the excitation flux by modifying the relative position between field and armature, e.g. between rotor and stator
- H02K21/025—Means for mechanical adjustment of the excitation flux by modifying the relative position between field and armature, e.g. between rotor and stator by varying the thickness of the air gap between field and armature
- H02K21/026—Axial air gap machines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
Description
Technisches Gebiettechnical area
Die Erfindung betrifft einen bürstenlosen Motor mit einer lastabhängigen, automatischen Verstellung von Luftspalt, bei dem das Drehmoment entsprechend der Last automatisch verändert werden kann.The The invention relates to a brushless Engine with a load-dependent, automatic adjustment of air gap at which the torque can be changed automatically according to the load.
Stand der TechnikState of technology
Die Motoren unterscheiden sich durch ihre Eigenschaften, wie Höchstdrehmoment, Höchstdrehzahl, Höchstleistung, Trägheitsmoment usw. Das maximale Lastgewicht des Motors ist von dem Höchstdrehmoment und der Höchstdrehzahl abhängig und können mit der folgenden Formel errechnet werden. (wobei T = Höchstdrehmoment, Nmax = Höchstdrehzahl, kt = Drehmomentkonstante, C = Konstante 9,5, VD = Motorspannung, A = Eingangsstrom).The engines differ in their characteristics such as maximum torque, maximum speed, maximum power, moment of inertia, etc. The maximum load weight of the engine depends on the maximum torque and maximum speed and can be calculated using the following formula. (where T = maximum torque, Nmax = maximum speed, kt = torque constant, C = constant 9.5, VD = motor voltage, A = input current).
Hierbei ist der Eingangsstrom A begrenzt. Das Höchstdrehmoment T und die Höchstdrehzahl Nmas stehen im umgekehrten Verhältnis. Das Höchstdrehmoment und die Höchstdrehzahl werden auch durch die Magnetkraft der Magnete, die Polzahl, die Windungszahl der Wicklungen und den Luftspalt zwischen dem Stator und dem Rotor beeinflußt.in this connection the input current A is limited. The maximum torque T and the maximum speed Nmas are in inverse proportion. The maximum torque and the maximum speed are also determined by the magnetic force of the magnets, the number of poles, the Number of windings of the windings and the air gap between the stator and the rotor.
Durch das Radgetriebe werden die Herstellungskosten des Motors erhöht. Zudem werden das Gewicht und das Volumen des Motors vergrößert.By The wheel gear, the manufacturing cost of the engine are increased. moreover the weight and volume of the engine are increased.
Bei der Anwendung auf einen Elektrowagen benötigt dieser Motor neben dem Radgetriebe noch ein Differential, wenn es um die Kurven fährt. Dies verbraucht ca. 40% bis 50% der Gesamtenergie, so dass die Fahrleistung des Elektrowagens reduziert wird.at the application to an electric car needs this engine in addition to the Wheel gear still a differential when it drives around the curves. This consumed about 40% to 50% of the total energy, so the mileage of the Electric cart is reduced.
Aus diesem Grund hat der Erfinder in Anbetracht der Nachteile herkömmlicher Lösungen, basierend auf langjähri ger Erfahrung in diesem Bereich, nach langem Studium, zahlreichen Versuchen und unentwegten Verbesserungen die vorliegende Erfindung entwickelt.Out For this reason, in view of the disadvantages of the present inventor Solutions, based on longtime ger Experience in this area, after a long study, numerous experiments and unceasing improvements to the present invention.
Aufgabe der ErfindungTask of invention
Der Erfindung liegt die Aufgabe zugrunde, einen bürstenlosen Motor mit einer lastabhängigen, automatischen Verstellung von Luftspalt zu schaffen, bei dem das Drehmoment entsprechend der Last automatisch verändert werden kann, wourch das Radgetriebe entfallen kann.Of the Invention is based on the object, a brushless motor with a load-dependent, automatic Adjustment of air gap to create at which the torque accordingly the load changed automatically can be, why the wheel gear can be omitted.
Diese Aufgabe wird durch den erfindungsgemäßen bürstenlosen Motor mit einer lastabhängigen, automatischen Verstellung von Luftspalt gelöst, dessen Hauptkörper bestehend aus einem Stator, der fest im Hauptkörper befestigt ist; einer Ausgangswelle, die drehbar im Hauptkörper befestigt ist und aus dem Hauptkörper herausragt; einem Rotor, der gegenüber der Ausgangswelle axial verschoben werden kann, wodurch der Luftspalt zwischem dem Stator und dem Rotor verändert werden kann; einem Verbinder, der an den beiden Enden mit dem Rotor und der Ausgangswelle verbunden ist und sich neigt, wenn zwischen dem Rotor und der Ausgangswelle ein Drehmomentunterschied auftritt, wodurch der Rotor von dem Verbinder axial gezogen wird, so dass der Luftspalt verändert wird; und einem Federelement, das den Rotor in der dem Stator entgegengesetzten Richtung drückt, wodurch der Verbinder gestreckt wird.These The object is achieved by the brushless motor according to the invention with a load-dependent, automatic Adjustment of air gap solved, its main body consisting of a stator fixedly secured in the main body; an output shaft, the rotatable in the main body is attached and removed from the main body protrudes; a rotor which is axially opposite the output shaft can be moved, whereby the air gap between the stator and the rotor changed can be; a connector at the two ends with the rotor and the output shaft is connected and tends when between the Rotor and the output shaft a torque difference occurs whereby the rotor is pulled axially from the connector, so that the Air gap changed becomes; and a spring member that rotates the rotor in the opposite direction to the stator Direction pushes, whereby the connector is stretched.
Die Breite des Luftstpaltes ist von dem widerstand der Last auf die Ausgangswelle abhängig. Je höher die Last ist, desto größer ist der relative Drehwinkel zwischen dem Rotor und der Ausgangswelle und der Neigungswinkel des Verbinders, wodurch der Verschiebungsweg des Rotors verlängert wird, so dass die Breite des Luftspalts verkleinert wird. Dabei erzeugt der Motor ein größeres Drehmoment und eine kleinere Drehzahl. Je kleiner die Last ist, desto kleiner ist der relative Drehwinkel zwischen dem Rotor und der Ausgangswelle und der Neigungswinkel des Verbinders, wodurch der Verschiebungsweg des Rotors verkürzt wird, so dass die Breite des Luftspalts vergrößert wird. Dabei erzeugt der Motor ein kleineres Drehmoment und eine größere Drehzahl.The Width of the air gap is determined by the resistance of the load to the Output shaft dependent. The higher the load is, the bigger it is the relative angle of rotation between the rotor and the output shaft and the angle of inclination of the connector, reducing the displacement path of the rotor is extended, so that the width of the air gap is reduced. The generated Motor a larger torque and a smaller speed. The smaller the load, the smaller is the relative angle of rotation between the rotor and the output shaft and the angle of inclination of the connector, whereby the displacement path shortened the rotor so that the width of the air gap is increased. The generated Motor a smaller torque and a higher speed.
Daher ist die Erfindung für Fahrzeug geeignet, das eine lastabhängige, automatische Drehmomentverstellung benötigt, wie Elektrowagen.Therefore is the invention for Vehicle suitable, the load-dependent, automatic torque adjustment needed like electric cars.
Kurze Beschreibung der ZeichnungenShort description the drawings
Wege zur Ausführung der ErfindungWays to execute the invention
Wie
aus
Der
Stator (
Die
Ausgangswelle (
Der
Rotor (
Der
Verbinder (
Das
Federelement (
Nach
Bestromung der Wicklungen des Stators (
Die
Breite des Luftspalts ist von dem widerstand der Last auf die Ausgangswelle
(
Je
kleiner die Last ist, desto kleiner ist der relative Drehwinkel
zwischen dem Rotor (
Die
Wie
aus
Wie
aus
Wie
aus
Dadurch
kann der Luftspalt (
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007007217U DE202007007217U1 (en) | 2007-05-18 | 2007-05-18 | Brushless motor for e.g. electric vehicle, has connector that is tilted such that rotor is drawn from connector so that air gap is changed, and spring unit pressing rotor in direction opposite to stator so that connector is stretched |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007007217U DE202007007217U1 (en) | 2007-05-18 | 2007-05-18 | Brushless motor for e.g. electric vehicle, has connector that is tilted such that rotor is drawn from connector so that air gap is changed, and spring unit pressing rotor in direction opposite to stator so that connector is stretched |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202007007217U1 true DE202007007217U1 (en) | 2007-08-02 |
Family
ID=38329867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202007007217U Expired - Lifetime DE202007007217U1 (en) | 2007-05-18 | 2007-05-18 | Brushless motor for e.g. electric vehicle, has connector that is tilted such that rotor is drawn from connector so that air gap is changed, and spring unit pressing rotor in direction opposite to stator so that connector is stretched |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202007007217U1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009023221A1 (en) * | 2009-05-29 | 2010-12-02 | Karl-Josef Schmidt | electric drive |
EP2037557A3 (en) * | 2007-09-14 | 2012-07-25 | Nissan Motor Co., Ltd. | Axial Gap-Type Electric Motor |
CN102684325A (en) * | 2012-05-21 | 2012-09-19 | 艾瑞克.卡拉尼 | Method for changing air gap of axial magnetic field motor without assistance of external mechanism |
DE102016004694A1 (en) * | 2016-04-19 | 2017-10-19 | eMoSys GmbH | Electric disc rotor machine |
WO2021164815A1 (en) * | 2020-02-21 | 2021-08-26 | Schaeffler Technologies AG & Co. KG | Electric motor with field enhancement |
WO2022188925A1 (en) * | 2021-03-11 | 2022-09-15 | Schaeffler Technologies AG & Co. KG | Electric machine, method for controlling an electric machine, computer program product, and control unit |
EP4096075A1 (en) * | 2021-05-26 | 2022-11-30 | dormakaba Deutschland GmbH | Axial flow motor with variable gap |
-
2007
- 2007-05-18 DE DE202007007217U patent/DE202007007217U1/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2037557A3 (en) * | 2007-09-14 | 2012-07-25 | Nissan Motor Co., Ltd. | Axial Gap-Type Electric Motor |
DE102009023221A1 (en) * | 2009-05-29 | 2010-12-02 | Karl-Josef Schmidt | electric drive |
CN102684325A (en) * | 2012-05-21 | 2012-09-19 | 艾瑞克.卡拉尼 | Method for changing air gap of axial magnetic field motor without assistance of external mechanism |
DE102016004694A1 (en) * | 2016-04-19 | 2017-10-19 | eMoSys GmbH | Electric disc rotor machine |
DE102016004694B4 (en) * | 2016-04-19 | 2020-03-12 | eMoSys GmbH | Electronically controlled automatic seat belt system of a vehicle occupant restraint system |
WO2021164815A1 (en) * | 2020-02-21 | 2021-08-26 | Schaeffler Technologies AG & Co. KG | Electric motor with field enhancement |
WO2022188925A1 (en) * | 2021-03-11 | 2022-09-15 | Schaeffler Technologies AG & Co. KG | Electric machine, method for controlling an electric machine, computer program product, and control unit |
EP4096075A1 (en) * | 2021-05-26 | 2022-11-30 | dormakaba Deutschland GmbH | Axial flow motor with variable gap |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20070906 |
|
R081 | Change of applicant/patentee |
Owner name: SIN LIN TECHNOLOGY CO., LTD., TW Free format text: FORMER OWNER: YEH, DON-LON, TAICHUNG CITY, TW Effective date: 20090701 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20100506 |
|
R157 | Lapse of ip right after 6 years |
Effective date: 20131203 |